SHARP 37GQ20H02
Transcription
SHARP 37GQ20H02
37GQ-20H SERVICE MANUAL SEJB37GQ20H02 Issued: 9th June ‘00 SQUAD CHASSIS PAL SYSTEM COLOUR TELEVISION MODEL 37GQ-20H In the interests of user safety (required by safety regulations in some countries) the set should restored to its original condition and only parts identical to those specified should be used. CONTENTS ELECTRICAL SPECIFICATION.......................2 SCHEMATIC DIAGRAM, WAVE FORMS..... .13 IMPORTANT SERVICE NOTES.......................3 SERVICE ADJUSTEMENTS.............................4 PRINTED WIRING BOARDS...........................11 PART LIST.......................................................18 TROUBLESHOOTING TABLES......................22 SHARP CORPORATION 1 This document has been published to be used for after sales service only. 37GQ-20H ELECTRICAL SPECIFICATIONS •Sound Carrier Trap.............................32.9MHz •Power Input .......................220V-240 Volts AC 50Hz •Power Consumption Normal Operating...................................30W •Adjacent Sound Carrier Trap................40.9MHz Stand-by Operating................................7.5W (Method IEC60107) •Audio Power Output Rating .....................2W (MPO) •Adjacent Picture Carrier Trap...............30.9MHz Speaker............................32Ω 2W, 8cm Round, 1pc Convergence.........................Self Converging System •Aerial Input Impedance VHF/UHF...........................75 ohm Unbalanced Focus....................................Bi-Potencial Electrostatic Sweep Deflection...........................................Magnetic •Tuning Ranges ............471.25MHz thru 855.25 MHz (CH21-CH69) •Picture Intermediate Frecuencie..... .........38.9MHz •White Level Set brightness control to get total picture tube cathode current of 600 milliamperes under no signal condition. Maximum necessary correction of each picture tube cathode current to get 8950 degree K-20 MPCD screen temperature should not exceed 15% of its original value. X=0.290 Y=0.284 Specifictions are subject to change without prior notice. WARNING The chassis in this receiver is partially live, always use an isolation transformer when servicing this chassis. To prevent electric shock, do not remove cover. No user-serviceable parts inside. Refer servicing to qualified service personnel. 2 37GQ-20H IMPORTANT SERVICE NOTES Maintenance and repair of this receiver should be done by qualified service personnel only. SERVICING OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE When servicing the high voltage system, remove static charge from it by connecting a 10K ohm resistor in series with an insulated wire (such as test probe) between picture tube ground tag and high voltage lead. (AC line cord should be disconnected from AC outlet). 1. The Picture tube in this receiver employs Integral Implosion protection. 2. Replace with tube of the same type number for continued safety. 3. Do not lift picture tube by the neck. 4. Handle the picture tube only when wearing shatterproof goggles and after discharging the high voltage completely. X-RAY This receiver is designed so that any X-Ray radiation is kept to an absolute minimum. Since certain malfunctions and servicing may produce potentially hazardous radiation with prolonged exposure at close range, the following precautions should be observed: 1. When repairing the circuit, be sure not to increase the high voltage to more than 25.5 KV, (at beam 1000µΑ) for the set. 2. To keep the set in a normal operation, be sure to make it function on 22.4KV±1.5KV (at beam 800µΑ) in the case of the set. The set has been factory - adjusted to the above mentioned high voltage. Always check the high voltage if there is any possibility that it might have changed as a result of the repair. 3. Do not substitute a picture tube with unauthorized types and/or brands which may cause excess X-Ray radiation. BEFORE RETURNING THE RECEIVER In addition to the above checks, the following safety checks should also be carried out before returning the unit to the user. 1. Inspect all leads and dress to make certain that the leads are not pinched or that hardware is not lodged between the chassis and other metal parts. 2. Inspect all protective devices such as non-metallic control knobs, insulating fish papers, cabinet backs, adjustment and compartment covers or shields, insolation resistor-capacity networks, mechanical insulators etc. 3 37GQ-20H SERVICE ADJUSTMENT •SERVICE MODE FUNCTION This mode funtion is provided to assist with the settings of those adjustments that may vary from one Picture Tube to another, or between models. In order to use the Service Mode 1. Press main switch to OFF. 2. Connect Test Pattern signal to antenna terminal. 3. Press ∨ , CH ∨ and main switch to ON simultaneosly or press ∧ , CH ∧ and main switch to ON simultaneosly. 4. -SERVICE- will appear on screen. Service mode is now entered. 5. Select adjustment using buttons ∧ CH ∧. To exit Service Mode, press main switch to OFF or press MENU button on R/C. Displayed on screen a. b. c. d. e. SERVICE NVM AGC GAIN AGC STR PLL PAL f. AUTO g. h. i. j. k. l. m. n. B-GAIN G-GAIN G-DC R-GAIN R-DC HOR POS VERT POS VERT AM Hexadecimal / Decim. Range 00 ∼ 03H 00 ∼ 63H S, L, VL, N 4-43, 3-58, SECAM, NTSC 4-43,NTSC 3-58, AUTO PNS, AUTO PN AUTO, 50HZ, 60HZ 0 ∼ 63d 0 ∼ 63d 0 ∼ 63d 0 ∼ 63d 0 ∼ 63d 0 ∼ 63d 0 ∼ 63d 0 ∼ 15d Function Indicates operative Service Mode. Access to NVM memory Auto Gain Control Auto Gain Starting Point Line PLL time constant Colour system. Field Frequency Blue Gain Green Gain Green Cut Red Gain Red Cut Horizontal Position shift Vertical Position shift Vertical Amplitude shift 6. For « a » Selection: NVM storage location settings variants. BANK X POS XXH VALUE XXH Assigned value Storage location Memory Bank In order to have access to NVM «MENU» button should be pressed. To obtain a higher or lower Memory Bank, buttons buttons ∨ CH ∨ ∧ should be pressed respectively. To have access to the desired Storage Location, ∧ should be pressed, as required to obtain a higher or lower location, respectively. 4 37GQ-20H Bear in mind that, for storage location indication a hexadecimal numerical system is used, instead of a decimal system. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, 10, 11, ......19, 1A, 1B, 1C, 1D, 1E, 1F, 20, 21, ....., 99, 9A, 9B, 9C, 9D, 9E, 9F, A0, A1, ....., B0, ....., C0, ....., D0, .....E0, ....., F0, F1, F2, F3, F4, F5, F6, F7, F8, F9, FA, FB, FC, FD, FE, FF. From the last location FF to the first 00 can be reached by increasing and from first to last by decreasing. Once the storage location to be varied has been selected, its value can be modified by the bits that form part of the storage location numerical buttons, numbers «0» to «7», respectively. This swithches the binary number from and between 0 and 1 each time one of the buttons is pressed. «0»:20=1, «1»: 21=2, «2»: 22=4, ... 7. For «b,c» and «g» thru «n» selections: Adjustment to a selection can be made by pressing buttons ∨ 8. For «d» thru «f» selections: Adjustment to a selection can be made by pressing button ∧. ∧. NVM LIST DESCRIPTION BANK 00H ADDRESS 00H 3BH 3CH 3DH 3EH 3FH DESCRIPTION ZONE FOR TUNNING INFORMATION (BEGIN) ZONE FOR TUNNING INFORMATION (END) STAND BY: 44H -> ON 40H -> OFF OPTION BYTE: 10XXXXXX -> HOTEL MODE 1 (START IN PRG1. NO TUNNING OPTION. VOLUME LIMITATION). 11XXXXXX -> HOTEL MODE 2 (START IN PRG 1. NO TUNING OPTION. VOLUME LIMITATION. START IN SCART MODE. OUT FROM STDBY WITH SSW. XXDDDDDD -> VOLUME ATTENUATION: 0AH -> 100%, 00H -> 0% DIODE_NVM: XXXXXXX0 -> SYMBOLIC OSD. XXXXXXX1 -> CHARACTER OSD XXXXX1XX -> ENGLISH LANGUAGE. DIODE2_NVM: XXXXXXX1 -> FRENCH STANDARD XXXXX01X -> BG STANDARD XXXXX10X -> L/L’ STANDARD XX1XXXXX -> AUDIO FOR UK X1XXXXXX -> AUTOINSTALLATION ON 1XXXXXXX -> ONLY UHF BAND. VALUE CAH 10H 44H 0AH 05H A0H 01H 00H 3BH 3DH 3EH 3FH ZONE FOR TUNNING INFORMATION (BEGIN) ZONE FOR TUNNING INFORMATION (END) UHFLOW: LOW WINDOW LIMIT FOR UHF BAND VHF3LOW: LOW WINDOW LIMIT FOR VHF3 BAND VHF1LOW: LOW WINDOW LIMIT FOR VHF1 BAND 10H 10H 80H 80H 80H 02H 00H 3FH RESERVED ZONE FOR PROGRAMME NAMES (BEGIN) RESERVED ZONE FOR PROGRAMME NAMES (END) 24H 24H 5 37GQ-20H 03H 00H 01H 02H 03H 04H 05H 06H 07H 08H 09H 0AH 0BH 0CH 0DH 0EH 0FH 10H 11H 12H 13H 14H 15H 16H 17H 18H 19H 1AH 1BH 1CH 1DH 1EH 1FH 20H 21H 22H 23H 24H 25H 26H 27H 28H 29H 2AH 2BH 2CH 2DH 2EH 2FH 30H 31H 32H 33H 34H ONE CHIP REGISTER 00: ONE CHIP REGISTER 01: ONE CHIP REGISTER 02: ONE CHIP REGISTER 03: ONE CHIP REGISTER 04: ONE CHIP REGISTER 05: ONE CHIP REGISTER 06: ONE CHIP REGISTER 07: ONE CHIP REGISTER 08: ONE CHIP REGISTER 09: ONE CHIP REGISTER 0A: ONE CHIP REGISTER 0B: ONE CHIP REGISTER 0C: ONE CHIP REGISTER 0D: ONE CHIP REGISTER 0E: ONE CHIP REGISTER 0F: ONE CHIP REGISTER 10: ONE CHIP REGISTER 11: ONE CHIP REGISTER 12: ONE CHIP REGISTER 13: ONE CHIP REGISTER 14: ONE CHIP REGISTER 15: ONE CHIP REGISTER 16: ONE CHIP REGISTER 17: ONE CHIP REGISTER 18: ONE CHIP REGISTER 19: ONE CHIP REGISTER 1A: ONE CHIP REGISTER 1B: ONE CHIP REGISTER 1C: ONE CHIP REGISTER 1D: ONE CHIP REGISTER 1E: ONE CHIP REGISTER 1F: VPOS_50 (VERTICAL POSITION) 4/3 50 Hz. VAMP_50 (VERTICAL AMPLITUDE) 4/3 50 Hz VPOS_60 (VERTICAL POSITION) 4/3 60 Hz VAMP_60 (VERTICAL AMPLITUDE) 4/3 60 Hz HSHIFT_60 (HORIZONTAL SHIFT) 60Hz HSHIFT_50 (HORIZONTAL SHIFT) 50Hz FINVFH: STEP FOR FINE TUNING IN VHF BAND VHF1_STEP: THICK TUNING STEP FOR VHF1 BAND VHF3_STEP: THICK TUNING STEP FOR VHF3 BAND UHF_STEP: THICK TUNING STEP FOR UHF BAND LP_COARSE: THICK TUNING ADJUSTMENT FOR L’ BG_COARSE: THICK TUNING ADJUSTMENT FOR L AND BG BG_FINE: FINE TUNING ADJUSTMENT FOR L AND BG LP_FINE: FINE TUNING ADJUSTMENT FOR L’ DELAY SEARCH: XXXXXXX0 -> SHOWS ‘PROGRAMME –‘ DURING AUTOSEARCH. XXXXXXX1 -> DHOWS ‘AUTO SEARCH’ DURING AUTOSEARCH VHF1_SP: STEP FOR AUTO SEARCH IN VHF1 BAND VHF3_SP: STEP FOR AUTO SEARCH IN VHF3 BAND UHF_SP: STEP FOR AUTO SEARCH IN UHF BAND OLD_PROGRAM: FOR FLASHBACK RETURN UHFHIGH: UPPER WINDOW LIMIT FOR UHF VHF3HIGH: UPPER WINDOW LIMIT FOR VHF3 6 80H 05H 9FH 20H 00H BAH 42H 32H 19H 99H 32H B2H 32H 20H 20H 18H 1FH 00H 00H 20H 20H 00H 1FH 20H 2BH 00H 90H 90H 90H 00H 00H 00H 12H 0FH 0FH 0FH 1DH 22H 00H A4H 85H 64H 02H 0AH 00H 00H 00H 0AH 05H 03H 00H 00H 00H 37GQ-20H 35H 36H 37H 38H 3Bh 3CH 3FH 04H 00H 01H 02H 03H 04H 05H 06H 07H 08H 09H 0AH 0BH 0CH 0DH 0EH 0FH 10H 11H 12H 13H 14H 15H 16H 17H 18H 19H 1AH 1BH 1CH 1DH 1EH 1FH 20H 21H 22H 23H 24H 25H 26H 27H 28H 29H 2AH 2BH 2CH 2DH 2EH VH F1HIGH : U PPER WIND OW LIM IT FOR V HF1 00H PRG _NUM B ER: CU RREN T PRO GRA M ME NU MBE R 01H W AITSUP : U PPER L IM IT DE LAY TIME FOR A UTO SEAR CH. 0FH W AITINF: LO WER LIMIT D ELA Y TIM E FOR A UTO SEA RCH 03H SCA RT BL OKIN G: 00H 00H = NO SCART BLO CKING V2 µ Proc. 01H = SCAR T BLO CKIN G W HE N AN Y PR . IS IN CHILD Version or LO CK M OD E. upper. RET _COL: DE LAY IN COL OU R IDENT IFIC ATION IN AU TO 40H M OD E. CH ECK SUM 7EH ON E CH IP R EGISTE R 00: ON E CH IP R EGISTE R 01: ON E CH IP R EGISTE R 02: ON E CH IP R EGISTE R 03: ON E CH IP R EGISTE R 04: ON E CH IP R EGISTE R 05: ON E CH IP R EGISTE R 06: ON E CH IP R EGISTE R 07: ON E CH IP R EGISTE R 08: ON E CH IP R EGISTE R 09: ON E CH IP R EGISTE R 0A: ON E CH IP R EGISTE R 0B: ON E CH IP R EGISTE R 0C: ON E CH IP R EGISTE R 0D: ON E CH IP R EGISTE R 0E: ON E CH IP R EGISTE R 0F: ON E CH IP R EGISTE R 10: ON E CH IP R EGISTE R 11: ON E CH IP R EGISTE R 12: ON E CH IP R EGISTE R 13: ON E CH IP R EGISTE R 14: ON E CH IP R EGISTE R 15: ON E CH IP R EGISTE R 16: ON E CH IP R EGISTE R 17: ON E CH IP R EGISTE R 18: ON E CH IP R EGISTE R 19: ON E CH IP R EGISTE R 1A: ON E CH IP R EGISTE R 1B: ON E CH IP R EGISTE R 1C: ON E CH IP R EGISTE R 1D: ON E CH IP R EGISTE R 1E: ON E CH IP R EGISTE R 1F: VPO S_50 (VER TIC AL PO SIT IO N) 4/3 50 Hz. VA M P_50 (V ERTICA L AM PLITU DE) 4/3 50 Hz VPO S_60 (VER TIC AL PO SIT IO N) 4/3 60 Hz VA M P_60 (V ERTICA L AM PLITU DE) 4/3 60 Hz HSH IFT_60 (HOR IZ ONT AL SH IFT ) 60H z HSH IFT_50 (HOR IZ ONT AL SH IFT ) 50H z FINV FH: ST EP FO R FINE T UNIN G IN VH F BA ND VH F1_STEP: TH ICK TUN ING STEP FO R VH F1 BA ND VH F3_STEP: TH ICK TUN ING STEP FO R VH F3 BA ND UH F_STEP: TH IC K TU NING STEP FO R UH F BA ND LP_C OAR SE: T HICK T UNIN G A DJUSTM EN T FO R L’ BG _COA RSE: THIC K TU NING A DJU STME NT F OR L A ND BG BG _FIN E: FIN E TU NING A DJUST ME NT F OR L A ND BG LP_FINE : FINE TUN IN G AD JUSTM EN T FO R L’ DE LAY SEAR CH: XX XX XXX 0 -> SHO WS ‘PR OG RAM M E –‘ DU RING A UTO SEAR CH. XX XX XXX 1 -> DH OW S ‘A UTO SEA RCH ’ DU RIN G A UTO SEA RCH 7 80H 05H 9FH 20H 00H BA H 42H 32H 19H 99H 32H B2H 32H 20H 20H 18H 1FH 00H 00H 20H 20H 00H 1FH 20H 2BH 00H 90H 90H 90H 00H 00H 00H 12H 0FH 0FH 0FH 1DH 22H 00H A4H 85H 64H 02H 0AH 00H 00H 00H 37GQ-20H 2FH 30H 31H 32H 33H 34H 35H 36H 37H 38H 3Bh 0AH 05H 03H 00H 00H 00H 00H 01H 0FH 03H 00H V2 µ Proc. Version or upper. 40H 3FH VHF1_SP: STEP FOR AUTO SEARCH IN VHF1 BAND VHF3_SP: STEP FOR AUTO SEARCH IN VHF3 BAND UHF_SP: STEP FOR AUTO SEARCH IN VHF BAND OLD_PROGRAM: FOR FLASHBACK RETURN UHFHIGH: UPPER WINDOW LIMIT FOR UHF VHF3HIGH: UPPER WINDOW LIMIT FOR VHF3 VHF1HIGH: UPPER WINDOW LIMIT FOR VHF1 PRG_NUMBER: CURRENT PROGRAMME NUMBER WAITSUP: UPPER LIMIT DELAY TIME FOR AUTOSEARCH. WAITINF: LOWER LIMIT DELAY TIME FOR AUTOSEARCH SCART BLOKING: 00H = NO SCARTBLOCKING 01H = SCART BLOCKING WHEN ANY PR. IS IN CHILD LOCK MODE. RET_COL: DELAY IN COLOUR IDENTIFICATION IN AUTO MODE. CHECKSUM 00H 01H 02H 03H 04H 05H 06H 07H 08H 09H 0AH 0BH 0CH 0DH 0EH 0FH 10H 11H 12H 13H 14H 15H 16H 17H 18H 19H 1AH 1BH 1CH 1DH 1EH 1FH 20H 21H 22H 23H 24H 25H 26H 27H 28H 29H 2AH ONE CHIP REGISTER 00: ONE CHIP REGISTER 01: ONE CHIP REGISTER 02: ONE CHIP REGISTER 03: ONE CHIP REGISTER 04: ONE CHIP REGISTER 05: ONE CHIP REGISTER 06: ONE CHIP REGISTER 07: ONE CHIP REGISTER 08: ONE CHIP REGISTER 09: ONE CHIP REGISTER 0A: ONE CHIP REGISTER 0B: ONE CHIP REGISTER 0C: ONE CHIP REGISTER 0D: ONE CHIP REGISTER 0E: ONE CHIP REGISTER 0F: ONE CHIP REGISTER 10: ONE CHIP REGISTER 11: ONE CHIP REGISTER 12: ONE CHIP REGISTER 13: ONE CHIP REGISTER 14: ONE CHIP REGISTER 15: ONE CHIP REGISTER 16: ONE CHIP REGISTER 17: ONE CHIP REGISTER 18: ONE CHIP REGISTER 19: ONE CHIP REGISTER 1A: ONE CHIP REGISTER 1B: ONE CHIP REGISTER 1C: ONE CHIP REGISTER 1D: ONE CHIP REGISTER 1E: ONE CHIP REGISTER 1F: VPOS_50 (VERTICAL POSITION) 4/3 50 Hz. VAMP_50 (VERTICAL AMPLITUDE) 4/3 50 Hz VPOS_60 (VERTICAL POSITION) 4/3 60 Hz VAMP_60 (VERTICAL AMPLITUDE) 4/3 60 Hz HSHIFT_60 (HORIZONTAL SHIFT) 60Hz HSHIFT_50 (HORIZONTAL SHIFT) 50Hz FINVFH: STEP FOR FINE TUNING IN VHF BAND VHF1_STEP: THICK TUNING STEP FOR VHF1 BAND VHF3_STEP: THICK TUNING STEP FOR VHF3 BAND UHF_STEP: THICK TUNING STEP FOR UHF BAND LP_COARSE: THICK TUNING ADJUSTMENT FOR L’ 80H 05H 9FH 20H 00H BAH 42H 32H 19H 99H 32H B2H 32H 20H 20H 18H 1FH 00H 00H 20H 20H 00H 1FH 20H 2BH 00H 90H 90H 90H 00H 00H 00H 12H 0FH 0FH 0FH 1DH 22H 00H A4H 85H 64H 02H 3CH 05H 8 7EH 37GQ-20H 2BH 2CH 2DH 2EH 2FH 30H 31H 32H 33H 34H 35H 36H 37H 38H 3Bh 3CH 3FH BG _COA RSE: TH IC K TU NING AD JU STM ENT FOR L AN D BG BG _FIN E: FIN E TU NING AD JU STM ENT FOR L AN D BG LP_FINE : FINE TUN IN G A DJUST ME NT FO R L’ DE LAY SEAR CH: X XXX XXX 0 -> SHO W S ‘P ROG RAM M E –‘ D URING AU TOSEA RCH . X XXX XXX 1 -> DH OW S ‘AUT O SEA RC H’ DU RING AUT OSEA RCH VH F1_SP: STEP FO R AU TO SEAR CH IN VHF1 BAN D VH F3_SP: STEP FO R AU TO SEAR CH IN VHF3 BAN D UH F_SP: STEP FO R A UTO SEA RCH IN VH F BAN D OL D_PRO GR AM : F OR FL ASH BAC K RE TUR N UH FHIGH : U PPER WIND OW L IM IT FOR UH F VH F3HIGH : U PPER WIN DO W VH F1HIGH : U PPER WIN DO W L IM IT FOR VHF 1 PRG _NUM B ER: CU RREN T PRO GR AM M E NU M BER W AITSUP : U PPER L IM IT D ELAY TIM E FOR A UTO SEA RCH . W AITINF: LO WE R LIMIT D ELA Y TIM E FO R AU TOSE AR CH SCA RT B LOK IN G: 00H = NO SCAR TBLO CKIN G 01H = SCA RT BLO CK IN G W H EN A NY PR. IS IN CHILD LO CK M OD E. RET _COL : D ELAY IN CO LOU R IDEN TIFICAT IO N IN A UTO M OD E. CH ECK SUM •PIF/AGC Adjustement •Screen Adjustement 1. B/G AFT Adjustment 1 . Connect the output of SSG (Standard Signal Generator) to the tuner IF output terminal. •SSG output 38.9 MHz (CW) ± 5 KHz. •SSG output level: approx. 90 dBµV. 2 . Enter into Service Mode. 3 . Push «2» key on R/C. «FI OK» will appear. 4 . Switch set OFF and ON again, setting is now memorized. 3. Focus Adjustment 0AH 00H 00H 00H 0AH 05H 03H 00H 00H 00H 00H 01H 0FH 03H 00H V2 µ Proc. Version or upper. 40H 7EH 1. Apply mains voltage of 220V AC/50HZ to TV. 2. Receive Philips pattern signal to a level between 60 and 80 dB µV. 3. Set contrast to 10/10, brightness to 5/10 and colour 0/10. 4. Adjust focus potentiometer to obtain maximum definition. 4. G2 Adjustment 1. Apply mains voltage of 220V AC/50HZ to TV. 2. Receive the «CROSS HATCH» pattern signal to a 2. RF-AGC STR Adjustment 1. Receive the «CROSS HATCH» signal (Channel I42). Signal strength: 57 dBµV. 2. Enter into Service Mode. 3. Push CH until AGC STR appears on screen. 4. Push «7» key of R/C.«AGC OK» will appear. 5. Switch set OFF and ON again, setting is now memorized. level between 60 and 80 dBµV. 3. Apply High Voltage Probe to Pin 8 of CRT socket 4. Adjust G2 potentiometer until obtaining 525V ±10%. 5. Check BKGD. If it is necessary adjust BKGD according to instructions detailed in the next page. 9 37GQ-20H •GEOMETRY ADJUSTMENT PROCEDURE 1. HOR POS a) Receive Philips pattern signal. b) When ∧ button is pressed, picture moves to the left. c) When ∨ button is pressed, picture moves to the right. d) Adjust the horizontal location to obtain picture centering (Fig.1). Fig. 1 2. VERT POS a) Receive Philips pattern signal. ∧ button is pressed, picture moves up. b) When button is pressed, picture moves down. c) When ∨ d) Adjust the vertical location to obtain picture centering (Fig.2). Fig. 2 3. VERT AM a) Receive Philips pattern signal. ∧ button is pressed, vertical size of picture increases. b) When button is pressed, vertical size of picture decreases. c) When ∨ d) Adjust the vertical size to obtain picture overscan (Fig.3). Fig. 3 •COLOUR ADJUSTMENT (BKGD) PROCEDURES The following adjustments are required when the Picture Tube or IC801 are replaced, or may be necessary after adjustment of the G2 voltage. (0: Black ... 7: White) 1. «B-GAIN», «G-GAIN» 6 5 4 3 2 1 0 a) Adjust G2. Gain point b) Tune a grey scale pattern. c) Adjust colour to minimum. 3 7 4 0 d) Fix R-GAIN value to 50. e) Position colourmeter in the the left point of Fig.4. Fig. 4 DC point f) Using brightness and contrast buttons, select a luminance of ≈120 nits. g) Operate again in Service Mode and select location B-GAIN and G-GAIN to obtain colour coordinates: X = 0.290 ± 0.015 Y = 0.284 ± 0.015 h) Exit Service Mode and check colour coordinates «X» and «Y» at 20 and 120 nits. It may be necessary to repeat the same procedure or re-adjust the cuts as show the be below one. 2. «G-DC», «R-DC» a) Adjust G2, in the case that it has not been made previously. b) Tune a grey scale pattern. c) Adjust colour to minimum. e) Position colourmter in the the right point of Fig.4. f) Using brightness and contrast buttons, select a luminance of ≈20 nits. g) Operate again in Service Mode and select location G-DC and R-DC to obtain colour coordinates: X = 0.290 ± 0.015 Y = 0.284 ± 0.015 h) Exit Service Mode and check colour coordinates «X» and «Y» at 20 and 120 nits. It may be necessary to repeat the same procedure or the previous one. NOTE: Locations «R» alter «X» coordinates; «G» alter «Y» coordinates; «B» alter «X» and «Y» coordinates. 10 37GQ-20H PRINTED WIRING BOARD (01 A Version) Component side. J302 RMC001 K7287BM D1001 7 1 I S1002 S1003 A F7287BMN1 C1009 S1004 2 6 + R714 + E JF10 D801 J42 J48 J47 C208 C814 JL10. 5 + J67 JL1 J57 J58 C820 J64 C822 TP601 J78 GND R406 C304 DA CL FB402 TU AGC JL2. C215 L5 FB403 F401 SDA J92 SCL J91 SC401 CLK J80 C223 J55 X801 R612 (K). R613 D604 R618 R617 D605 TP602 C605 J79 DAT + (SERVICE) J77 SER J68 JL10 C408 + R402 B+ + R615 A J60 J63 FB801 C406 J65 L202 AS L4 T601 + 6 4 (H). 1 33V 1 C805 C401 IF2 CF201 + 5 1 + 7 4 C819 IF1 + 8 3 C801 + B 9 J94 C209 + 2 1 SF201 J39 D603 C803 5 10 + J52 J53 L602 1 + 5 + C607 JL2 J50 C207 + R816 J90 J38 D201 C817 + + D602 D202 + J45 C604 C L301 Q870 C503 C301 JL3 SF202 R604 R607 J86 + C602 J43 C815 J40 1 L601 J35 L801 C205 J87 J32 J83 B R606 + R609 J34 + B E J30 C508 R608 5 E B Q502 C603 C 4 Q603 R603 2 3 Q602 B R605 R610 FB601 1 E Q601 J28 Q503 B J71 (F) E E J24 J29 JL6 C509 J72 + R611 J22 D606 R529 R616 D D503 TP701 R536 JL3. R530 + C608 R537 J82 R510 C601 J81 R523 + D708 J21 B R502 C1014 JL1. Q501 R511 C713 C711 C609 R1013 X1001 R820 C728 D710 8 J17 31 IC1004 R819 + E T701 C725 1 R1011 R1012 7 C707 E + R702 + R703 C R710 J15 J16 C JF11 R709 R718 R516 J88 R701 E IC1003 C712 R301 Q702 D301 + R1028 J12 J89 R315 R1027 D709 C722 C303 C1001 C726 J73 R1029 D711 J84 J6 E C714 J3 C717 R302 ESPA¥A J44 + J7 FB701 C308 J85 Q703 C D717 J1 J2 C312 FB702 C718 C307 J8 J9 14 JL6. R304 E R720 C Q1001 J69 1 A C710 Q707 D707 R708 5 Q872 R887 B C709 R707 C721 E F7288BMN1 C302 R305 C879 1 D702 1 B E Q887 (L3) C703 G (L2) (K) Q871 E R303 K7288BM L861 2 C702 PR701 D701 C705 B E 5 4 D703 C874 R866 C704 2 R716 6 E Q301 C + D704 3 Q302 C R862 Q883 E + T3.15AH 7 (G) (SH) (S). L1001 L701 JF13 C876 R883 1 JF15 G2 8 + 3 4 B (A) 2 6 F7296BMN1 + S1 Q885 FB301 E B K7296BM E 9 F701 1 35 C878 + JF14 7 1 + R885 JL1, JF12 J301 R864 B + CRT 1 + (H) 4 C701 F 4 (S) S701 H 35 J5 S1001 + K TU201 1 2 3 4 11 5 6 7 37GQ-20H RMC001 C313 E B J71 C1011 D810 D803 D601 C611 C603 C610 C604 JF14 C721 R701 R705 R702 JF7 C605 D605 D604 R1031 J59 R1030 DATJ77 D607 J67 SER R403 J92 T601 CLK SDA J91 J80 Q401 JF2 R418 K D402 GND J78 J79 (H). K Q402 R402 D404 K SC401 JF6 JF9 + R614 R617 (K). R612 C809 R406 K K C405 C404 + R401 C215 A + + + C814 J48 C824 D804 J60 J65 R405 D406 K C602 4 D401 R419 JF18 C Q601 J53 C606 C401 J63 K R404 L601 L602 R618 R825 R409 C409 R407 R413 R417 FB402 K E JF8 R613 R420 D410 B R609 R607 C607 R811 FB801 R823 R408 R826 D403 K R802 R801 R803 J54 R812 D805 C807 K + J52 K R810 K R824 D408 C808 J61 K 1 E D602 R816 J50 D806 R822 R410 R412 + C406 R202 R415 + K K R604 D603 R815 C825 R804 C813 C810 C812 R813 + C805 C201 + J55 C209 R220 D411 R222 D405 AGC C1007 + C821 C806 + D407 R213 R414 FB404 TU C408 Q204 JF17 C1008 R1015 R211 + R212 C224 C225 C214 C216 C802 L201 R201 F401 FB403 R203 R416 K + 48 C811 X801 K D807 R808 + K R809 D409 R411 C222 J64 J62 C212 C213 D412 J39 C211 33 C820 R221 R219 J68 C221 33V L802 JF1 B+ B L202 C819 32 C801 Q604 4 3 2 Q603 Q602 B E R606 R605 J47 C823 C202 CF201 J45 J51 C901 C210 J56 L203 J58 J57 IF2 C203 D801 K R814 C803 5 B J40 C816 C817 R602 1 R204 IF1 J83 + J44 + R205 D808 FB601 JF10 K C804 R601 IC801 5 16 J94 C815 R818 R821 R817 D802 C818 D809 J42 K K 5 C206 + C208 + R207 + C205 C207 SF201 R218 R216 C219 J43 L204 C301 R208 SF202 R206 R209 C217 D202 Q202 L205 R215 C218 D201 Q203 R217 C220 J86 K C Q201 J87 R214 R210 J38 J90 J93 C601 D606 + J32 R509 C609 + R603 Q502 C725 (F) C508 Q503 R524 + R616 R610 E C608 R611 J22 Q506 J72 C507 B L801 C204 JF13 R716 C723 R525 Q507 R534 R530 R516 R820 J35 R819 Q1002 R1020 C503 C724 C715 R529 K D505 R512 R513 D503 J34 R703 C713 R533 R515 J29 J28 J30 C707 D708 J82 C717 J89 D710 K D506 C711 R510 C510 R723 C509 4 R724 D720 D716 D719 D705 + + K D712 SCL 1 Q505 R517 R706 K K K C708 R608 E R502 D706 K C722 R715 Q708 R1013 R511 Q501 K FB701 IC701 R725 R1010 D1002 C1006 C1012 + IC1003 B 5 R1032 J24 Q702 C R710 Q705 IC501 Q701 R704 R301 R1012 R1011 R538 R537 R536 R1014 Q509 Q1003 J81 R1034 JF11 E R718 R523 J19 R1033 R535 R519 C1015 J21 J12 R709 IC1004 C1013 C1005 L1002 C1004 R1005 R1006 C1003 C1002 K R805 R806 R807 J3 D709 R719 R726 R1025 Q1001 T701 D711 J84 C714 C712 R722 R1028 C718 D717 JF4 R714 R1027 X1001 J17 D L861 J7 + R721 R1029 FB702 Q706 J16 E R887 D707 R1022 J69 J9 J8 R1018 R1008 Q703 K D714 R711 J73 R1023 R1007 R1019 IC1001 E IC1002 + D301 R707 C K D1003 1 1 R708 R720 K + C705 C703 C709 E 1 2 D703 D702 C R1009 R1024 R1001 R1026 L1001 R1002 C303 R315 C1001 J6 + J15 C879 R894 3 F701 Q887 (A) C704 D701 C860 C873 R881 E B PR701 C702 C728 R302 R1004 R318 C1010 R314 K Q707 C710 R1021 J85 + J1 J2 R1003 Q305 C312 D860 Q872 E JF12 1 + R321 C308 J103 B J98 R305 + C874 J97 R304 4 K R899 + 5 R866 5 3 6 J96 D811 R888 R303 (K) 1 F R880 C872 B + D812 E B R879 Q871 E C871 2 JF3 Q870 C311 (S). R862 Q303 C Q301 R307 R313 (G) 7 Q883 K K D861 CRT 8 R892 C315 R306 A 9 C876 R883 C862 R310 E R885 E Q885 1 R316 L302 (SH) E F7288BMN1 R893 B C701 (H) C861 E R317 + FB301 Q302 C C309 4 K D862 D704 B JF15 C310 C878 + 1 R864 J88 R898 C304 L301 H G K S1001 S1 Q304 C302 C307 S1002 L701 J301 JF16 R312 S1003 S701 1 (S) R320 R311 S1004 JF5 C314 D718 R319 C1009 L303 I A R1017 J5 + F7287BMN1 R1016 J302 D1001 PRINTED WIRING BOARD (N1 A Version) Copper side. R615 TU201 1 2 3 4 12 5 6 7 37GQ-20H DESCRIPTION OF SCHEMATIC DIAGRAM SAFETY NOTE: 1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE REPLACING PARTS. 2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OPERATING. NOTE: 1. The unit of resistance «ohm»is omitted (K=1000 ohms. M= Megaohm). 2. All resistors are 1/8 watt. unless otherwise noted. 3. All capacitors are µF, unless otherwise noted (P= µµF). 4. The capacitor with Part No. RC-FZ9XXXBMNJ is designed to with stand 63V. IMPOTANT SAFETY NOTE: SERVICE PRECAUTION: PARTS MARKED WITH « ! » ( ) ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET. THE AREA ENCLOSED BY THIS LINE ( ) IS DIRECTLY CONNECTED WITH AC MAINS VOLTAGE. WHEN SERVICING THE AREA, CONNECT AN ISOLATING TRANSFORMER BETWEEN TV RECEIVER AND AC LINE TO ELIMINATE HAZARD OF ELECTRIC SHOCK. CAUTION This circuit diagram is original one, therefore there may be slight difference from yours. WAVEFORM MEASUREMENT CONDITION: Colour bar genetator signal of 70 dB from RF input. CH1 100V A 2µs 200V VERT CH1 100V A 2µs 100V VERT gnd CH1 2V A 10µs -1.00V VERT CH1 200V A 10µs 200V VERT gnd 2 3 CH1 CH1 FREQ = 100KHz P-P = 504 V CH1 CH1 CH1 1V CH1 500mV A 5ms 1.00V VERT A 5ms 2.50 V VERT 1V A 10µs 1.00V VERT gnd gnd 1 CH1 FREQ = 100KHz P-P = 472 V CH1 CH1 gnd 4 FREQ = 15.6KHz P-P = 8.56 V CH1 CH1 CH1 500mV A 5ms -500mV VERT 5 FREQ = 15.6KHz P-P = 1.00 kV CH1 10V A 5ms -10.0mV VERT CH1 CH1 FREQ = 15.6KHz P-P = 5.40 V CH1 1V A 5ms 2.50 V VERT gnd gnd gnd gnd gnd 6 CH1 CH1 7 FREQ = 50.0 Hz P-P = 4.80 V CH1 CH1 CH1 5V A 500µs 0.0 V VERT 8 FREQ = 50.0 Hz P-P = 1.48 V CH1 CH1 CH1 500mV A 10µs TVFLD 25 9 FREQ = 50.0 Hz P-P = 1.94 V CH1 20V A CH1 CH1 10µs 150 V VERT 10 FREQ = 50.0 Hz P-P = 38.4 V CH1 20V A CH1 CH1 10µs 150 V VERT FREQ = 1.00 KHz P-P = 4.44 V CH1 20V A 10µs 150 V VERT gnd 11 CH1 CH1 gnd FREQ = 412 Hz P-P = 16.8 V 12 CH1 CH1 gnd FREQ = 15.6 KHz P-P = 1.84 V 13 CH1 CH1 gnd FREQ = 15.6 KHz P-P = 74.4 V 13 14 CH1 CH1 gnd FREQ = 15.6 KHz P-P = 72.8 V 15 CH1 CH1 FREQ = 15.6 KHz P-P = 70.4 V B 2 3 (G) N0207CE C702 10nF (250V) KZ0029 P0028 PR701 4 14 5 47uF (400V) EZ0140BM C705 (250V) KZ0029 L701 S701 C701 470nF (275V) FZ0160BM P0588 R716 47K (1/2W) JF15 6 R715 10 R703 22 D717 1N4937 D716 DX0551BM D705 DX0551 C718 47nF 400V FB701 4 3 C723 100pF 1 (L2) (K) T701 5 3 8 Z0580BM D812 DX0551 D811 DX0551 R888 0 4 3 R879 470 2 Q871 TX0181 BF422 13 2 12 11 15 16 R726 0 (TQ) D710 DX0504 (2W) R864 15K R898 0 Q883 TX0180BM R892 1K D721 DX0504 D722 DX0504 DX0505 D707 QTIPM0017CEFM FB702 BLN-0037CE 1 C871 470pF R862 15K (2W) D709 DX0590BM MBR1100RL D708 DX0561 C728 220pF (2Kv) QCNW-2835BMZZ (200V) C878 10uF 470pF DX0551 C862 R880 470 Q870 TX0181 BF422 R866 15K (2W) C711 100uF (160V) D862 C713 220uF (16V) +10V +20V C872 470pF 470pF DX0551 C861 +105V F R702 470K (1/2W) R701 470K (1/2W) CILF0160BM C707 10uF (16V) DX0571 D704 D703 DX0571 C704 10nF DX0571 DX0571 D702 JF13 D861 A 7 -10V C712 220uF (16V) C715 100nF C710 220uF (25V) R718 4K7 JF11 R881 470 Q872 TX0181 BF422 470pF 2K7 (1/2W) 2K7 (1/2W) R887 2K7 (1/2W) R885 R883 R710 220 (1/2W) 2SA1037 Q705 Q702 TX0218 BC337-40 (L3) QTIPM0017CEFM L861 12uH 4.7nF (2KV) C876 15 Q887 TX0180BM R894 1K C873 470pF C874 1nF (500V) D860 DX0551 C860 C879 100pF QPWBF7287BMN0 R899 0 Q885 TX0180BM R893 1K R724 150 390 R725 +8V 12 8 6 4 5 3 9 7 13 14 FOCUS H (250V) KZ0029 D701 C703 10nF T3.15 F701 2 E Page 15 1 N0304CE C 1 G 14 13 12 11 10 9 8 (H) QCNW-2834BMZZ 220nF C507 3 9 5 4 7 CRT 1 R502 1K +10V K0079GE K0079GE R524 3K9 S1002 S1001 L3 I GND VCC 12 D D D D (A) D SCHEMATIC DIAGRAM (01 Version). -2 37GQ-20H Page 16 6 8 Page 14 9 10 3 C610 22nF Q604 2SC2412 R608 18K Q701 2SC2412 C708 15nF 14 13 12 11 10 9 8 GND VCC 12 D D D D GND FB 3 D D D D R704 100 R722 120 R706 680 R603 330 (1/2W) +7V C603 220uF (10V) R705 330 (TQ) IC701 TDA16833 D706 C6V2 EX0584 1 2 3 4 5 6 7 11 15 12 27 (1/2W) 27 (1/2W) C604 220uF (10V) R611 R610 Q603 TX0112 BC636 L601 4.7uF (CF) R609 2.2 (1/2W) Q602 BC635 TX0108BM Q601 TX0132 BU508D 6.8 (1/2W) 6.8 (1/2W) 4 R606 R604 470 (1/2W) R605 D601 DX0551 C722 10uF (16V) C717 10uF (16V) C724 100pF R607 (4Kv) C709 2n2 1 (1/2W) D603 DX0045 BLN-0020 C601 6n8 1K5 8M2 (1/2W) (UA) R707 6 5 DX0505 1N4935 D602 8M2 (1/2W) (UA) R708 10 9 14 13 C725 2n2 (4Kv) 5 2 9 4 +105V 1N4933 D711 DX0503 1N4934 D710 DX0504 T601 NF2072BM R720 560 (1/2W) C714 470uF (10V) D723 DX0503 D721 DX0504 R719 2K7 H.V. 5V6 D718 11 7 10 G2 FOCO D604 DX0506 1N4936 C605 100nF R617 1K R538 2K2 D714 B5V6 820 (1/2W) R714 -10V 220uF (16V) +5V. B R721 22 C713 220uF (16V) Q707 TX0217 BC337 Q706 2SA1037 L602 22uH (CF) 8 FB701 C723 100pF 6 D716 DX0551BM 3 8 D607 EX0549BM 7V5 R612 2.7 (1W) R535 820K Q509 2SA1037 R711 22 330nF C503 7 R517 180K 2SC2412KQ D712 6V2 (2%) C726 2.2uF Q708 R710 220 (1/2W) +5V A Q703 TX0218 BC337-40 R718 4K7 R530 180K Q507 2SC2412KQ Q505 2SA1037 R533 120K +8V C606 22nF R613 15K R614 560 +8V R519 8K2 R723 1K J67 1uF 4 3 2 1 -VS + _ 10 (1/2W) R615 DX0504 1N4934 D605 -25V 5 6 7 8 R537 15K +VS IC501 UA741 +105V R516 1K 4 3 2 1 560 R523 QCNW-2834BMZZ (H) R534 1K5 C510 100pF 120 R525 Q506 2SA1037 220nF 100uF (35V) C607 3K3 (1/2W) R616 R536 4K7 8 +10V -10V R509 1K R502 1K (F) N0505CE 100 1 SER . R DX 1N D6 68K 10K R513 R512 470nF (250V) FZ0174BM C609 R1027 C608 1uF (160V) Q502 BC635 D503 1N4933 R510 1 (1/2W) Q501 BC636 PC3 Page 17 J77 R715 10 37GQ-20H SCHEMATIC DIAGRAM (01 Version). I H G F E D C B A 13 14 Page 14 3 R811 100 2 1 R812 100 R1006 100 100 R1005 100 R1004 100 R1002 VERT FLB VSYNC PA3 PA2 PA1 PA0 PB6 PB5 PB4 PB3 PB2 PB1 DA5 43 FB R G B R1025 4K7 R1024 4K7 IC1001 ST6387T1/FMI/TR C901 100nF X801 C811 100nF C810 100nF 100nF C809 R806 1K R805 1K XTAL BTUN HALFCTR FBOSD ROSD J19 3K3 R807 1K VSYNC OSD OSD 26 XTAL XTAL RESET VS PC7 PC6 PC5 R1021 4K7 10 PC5 D807 5V6 23 24 25 26 27 28 29 30 31 32 33 D806 5V6 R1022 4K7 D805 5V6 X1001 8MHz 3 VERT VSYNC 3 R315 10K D1002 5V6 D804 5V6 10nF C309 C302 1uF DX0045BM R314 1K D301 C308 1uF L1002 68uH FLB VSYNC 6 R1018 10K C1012 100nF R1023 4K7 33K R303 330K C819 R822 C1011 220nF (25V) 1uF R321 1 C312 220uF (10V) CVBSIN2 BS BEXT GEXT REXT IC1004 PST529 R1020 5K6 C1005 15pF C1004 15pF 22pF C1003 22pF C1002 1 R1026 0 1K 28 29 30 31 32 R1032 39K R312 10K R311 100K R306 100K 4K7 (1/2W) IC1003 IX10037 220K R222 Q1002 2SC2412 R1019 1K5 R307 1uF C805 C808 100nF C807 100nF C1014 10uF (16V) 330nF C1015 R1014 22K C806 100nF Q1001 PH2369 R1010 27K R1034 150K C1007 22nF SCL AUDIO SDA R826 75 R824 75 R823 1K L/L' BU FB301 BLN0037 JF16 BH BL AGC SS C1008 47nF VT +105V C304 100uF (16V) R1015 22K R1013 4K7 (1/2W) R1012 4K7 (1/2W) Q302 BC327 TX0216 3.3uH (DF) L301 Q301 BC337 TX0217 R304 2.2 (1/2W) R1011 4K7 Q304 2SC2412 R1033 4K7 Q305 2SC2412 R313 560 R310 100 R305 4K7 (1/2W) +20V (1/2W) C303 1uF (160V) 10K C307 47uF (16V) Q1003 2SA1037KQ C1006 22pF R1009 1K R1008 3K3 R318 15K 2SA1037 Q303 100pF C315 R302 4K7 (1/2W) R825 75 C820 (S) 11 R221 Q 53 52 51 50 49 G R804 1K R803 220 220 R802 220 R801 R1007 100 11 10 9 8 7 6 5 4 3 2 1 C1009 47uF (10V) 3 R TX0108BM BC635 R810 100 4 100 R1003 R1001 100 C1001 470uF (6.3V) 100nF C1010 270 44 R301 C222 B G R FB 6 Q503 -25V R809 47K R808 1K 5 (K) QCNW-2835BMZZ R1016 330 L1001 10uH (DF) R1017 42 DA4 12 12 13 DA3 PA4 41 PA6 15 PA7 16 VSS 17 R 18 +5V B 20 DA2 14 DA1 40 DA0 2 21 G 19 B 48 GOSD PA5 38 SCL 39 VDD 36 PC2 37 SDA 35 PC3 BLANK 47 BOSD 1 45 34 PC4 22 HSYNC 46 ISENS D1001 PX0104BM R ROUT K0079GE 44 GOUT K0079GE 40 K0079GE 43 BOUT +20V 42 UOUT RMC001 CU0222CE 39 S1004 41 VOUT S1003 36 2 2 S1002 38 J 37 K YIN B YOUT I VIN G UIN 16 B APR L 35 M 5 33 N 4 34 P 3 CHR O 2 FB 1 Y/C . R Page 17 +105V 37GQ-20H SCHEMATIC DIAGRAM (01 Version). 7 B R G I 27 (F) N0505CE 1 470nF (250V) FZ0174BM C609 SER . PC3 . PC5 CLK 100 R1028 2 DX0505 1N4935 D606 68K 10K R513 R512 J80 3 100 R1029 D505 DX0551 4 Page 15 DAT 5 R515 100 100 SCL R1030 D506 DX0551 R511 1.8 (1/2W) . SDA . GND 100 R1031 R816 2K7 SC401 CZ2107BM R815 22K DX0045BM D801 C814 1uF 1M R814 7,5V D402 7,5V D401 R401 75 (TQ) C401 1uF D409 EX0549BM 7V5 R602 470 R821 8K2 R601 2K2 R404 75 (TQ) D404 7,5V 68 (1/2W) R402 R420 0 C822 100uF (16V) C815 2.2uF D803 C5V1 2K2 D405 7,5V R405 R406 75 75 (TQ) (1/4W) D406 7,5V R403 220 Q401 2SC2412 R820 100 D808 5V6 SSC HOUT VERT BCL CVBOUT2 VCC CVBSOUT1 GND VAMP CLPF XTAL XTAL +5VA 5 64 63 62 61 60 59 58 57 56 55 54 53 BTUN HALFCTR G REALIZADO G D407 7,5V (DF) L801 3.3uH VCC AUDIO SDA SCL C818 100nF 100uF (6.3V) C817 R407 75 (TQ) 10K R408 SS 1nF R413 220 (TQ) C404 R411 6K8 D403 C5V6 1uF 1nF R414 220 (TQ) C405 L OUT R OUT V OUT MODELO FECHA NOMBRE SQUAD SCART JF17 D412 EX0549BM 7V5 R416 47 EX0549BM 7V5 D411 C203 330nF (25V) 1 2 3 4 5 6 10 11 R201 220 100nF C802 5 4 SF201 G1952M C210 100nF FILC0023 2 10nF C214 10nF C213 10nF C212 10nF C211 R213 33K +5VA 4K7 C215 47uF (10V) R212 +5VA L802 3.3uH +5VA C221 100pF 100 12uH (DF) R219 2K2 R220 L202 1 1uF C820 TU201 RTUNH0125BMZZ 12 CF201 +8V R826 75 ELECTRONICA ESPANA S.A. SHARP 1:1 ESCALA Q K I T P 7 2 8 7 B M N * CODIGO AGC VT BU BH BL 5V IF OUT IFOUT C209 100uF (6.3V) C223 8,2pF (500V) C801 470uF (10V) R204 150 L201 390mH TUNER C202 1nF 33pF C201 C808 100nF 08-03-2000 R415 100K 47uF (16V) C408 1uF 37GQ-20H R417 2.2uH 17 18 19 20 21 22 23 24 25 26 27 28 C805 BL DATE: R410 C406 22uF 100K R412 6K8 C205 1uF R IN APROBADO 1nF C409 C207 10uF (16V) C206 22nF IFPLL GND IF AM/FMOUT VCC CVBS AUDIN IF1 IF2 VCC CVBSIN1 30 29 Q204 2SC2412 (0) R221 1 2 3 4 5 6 C216 220nF MOD. HASTA No.98 FECHA REVISIONES 08-03-2000 MOD. HASTA No. 81 01-06-00 MOD. HASTA No.59 11-02-2000 01-06-00 MOD. HASTA No.100 MOD. HASTA No.79 MOD. HASTA No.76 1K R203 1K R202 Page 16 24-02-2000 C224 220nF R211 47K C222 100nF B 07-03-2000 VT DATE: VERIFICADO B F401 LN0037 D410 EX549BM 7V5 JF18 R409 22K C301 3.3uF C208 IC801 STV2236 GND CVBSIN2 BS BEXT N 13 DATE: R R418 0 +8V R819 100 C816 4n7 D810 6V8 R817 R818 27K D802 DX0551 C803 470uF (10V) C813 4n7 X801 B0243 4.43MHz 52 51 12 SERVICIO . PC2 C508 330nF J79 R529 150 (1/2W) J91 C804 100nF 19 +8V 20 ) 21 R813 27K 18 C812 100nF FB 16 9 17 C901 100nF R 14 R804 1K 15 0 J77 AGC 12 BU 13 2 SLPF 1 11 3 SCL 10 4 9 TX0108BM BC635 5 AUDIO 6 GND SS 8 8 FMCAP 7 SIFIN 9 AGC 10 VIF 11 AGC 12 PIFIN 13 SIFIN 6 14 SAW 15 AGC 16 PIFIN 2 SDA B 7 11 5 17 4 10 3 9 1 8 3 Q503 37GQ-20H SCHEMATIC DIAGRAM (01 Version). 14 R BH Q P O N L IN M FS V IN L J78 K J J92 37GQ-20H REF No. PARTS PART LIST REPLACEMENT PARTS Replacement parts which have special safety characteristics are identified in this manual. Electrical components having such features are identified by in the Replacement Part List. The use of a substitute replacement part which does not have the same safety characteristics as the factory recommended is not permitted. Replacement parts not shown in this service manual may create shock fire, or other hazards. HOW TO ORDER REPLACEMENT PARTS To have your order completed promplty and corretly please supply the following information. 1. MODEL NUMBER 3. PART NO. 5. CODE 2. REF. NO. 4. DESCRIPTION 6. QUANTITY MARK *: SPARE PARTS DELIVERY SECTION REF No. PARTS DESCRIPTION ! ! PWB-A PWB-B PICTURE TUBE VB34EAC0136*N RCILG0415BMZZ CRT 14" A34EAC01X36 DEGAUSSING COIL 14" DUNTK7287CJV3 DUNTK7288CJV3 DSETU7287CJV3 ADJUST CHASSIS 37GQ20H ADJUST CRT 37GQ20H ADJUST MOTHER SET 37GQ20H PWB-A PRINTED WIRING BOARDS S BZ S AM S -S -S BV MOTHER UNIT TUNER TU 0201 RTUNH0125BMZZ UV134/IEC UHF BALANCED IC 0501 IC 0701 IC 0801 IC 1001 IC 1003 IC 1004 RH-IX1783BMZZ RH-IX1782BMZZ RH-IX1792BMZZ RH-IX1780BMZZ RH-IX0037CEZZ VHIPST529C2-1 IC UA741CDR TEXAS INSTRUMENTS IC TDA16833 SIEMENS IC STV2236 SGS-THOMSON -PAL IC ST6387 SGS-THOMSON IC UPC574J 33V NEC IC PST529C2 MITSUMI Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q VS2SC2412KQ-1 RH-TX0217BMZZ RH-TX0216BMZZ VS2SA1037KQ-1 VS2SC2412KQ-1 VS2SC2412KQ-1 VS2SC2412KQ-1 RH-TX0112BMZZ RH-TX0108BMZZ RH-TX0108BMZZ VS2SA1037KQ-1 VS2SA1037KQ-1 VS2SC2412KQ-1 VS2SA1037KQ-1 RH-TX0132BMZZ RH-TX0108BMZZ RH-TX0112BMZZ VS2SC2412KQ-1 VS2SC2412KQ-1 RH-TX0218BMZZ RH-TX0218BMZZ VS2SA1037KQ-1 VS2SA1037KQ-1 RH-TX0217BMZZ TRT 2SC2412 ROHM TRT BC337 PHILIPS TRT BC327 TRT BC807 SMD TRT 2SC2412 ROHM TRT 2SC2412 ROHM TRT 2SC2412 ROHM TRT BC636 TRT BC635 TRT BC635 TRT BC807 SMD TRT BC807 SMD TRT 2SC2412 ROHM TRT BC807 SMD TRT BU508DFI TRT BC635 TRT BC636 TRT 2SC2412 ROHM TRT 2SC2412 ROHM TRT BC337-40 PHILIPS TRT BC337-40 PHILIPS TRT BC807 SMD TRT BC807 SMD TRT BC337 PHILIPS 0204 0301 0302 0303 0304 0305 0401 0501 0502 0503 0505 0506 0507 0509 0601 0602 0603 0604 0701 0702 0703 0705 0706 0707 * CODE INTEGRATED CIRCUITS TRANSISTORS S AY S S S S S S AD AL AX BB AD AE S S S S S S S S S S S S S S S S S S S S S S S S AA AB AA AA AA AA AA AB AC AC AA AA AA AA AM AC AB AA AA AA AA AA AA AB 18 DESCRIPTION Q Q Q Q 0708 1001 1002 1003 VS2SC2412KQ-1 RH-TX0111BMZZ VS2SC2412KQ-1 VS2SA1037KQ-1 TRT 2SC2412 ROHM TRT PH-2369 PHILIPS TRT 2SC2412 ROHM TRT BC807 SMD D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D 0301 0401 0402 0403 0404 0405 0406 0407 0409 0410 0411 0412 0503 0505 0506 0601 0602 0603 0604 0605 0606 0607 0701 0702 0703 0704 0705 0706 0707 0708 0709 0710 0711 0712 0714 0716 0717 0718 0721 0722 0723 0801 0802 0803 0804 0805 0806 0807 0808 0810 1001 1002 RH-DX0045BMZZ RH-EX0549BMZZ RH-EX0549BMZZ RH-EX0546BMZZ RH-EX0549BMZZ RH-EX0549BMZZ RH-EX0549BMZZ RH-EX0549BMZZ RH-EX0549BMZZ RH-EX0549BMZZ RH-EX0549BMZZ RH-EX0549BMZZ RH-DX0503BMZZ RH-DX0551BMZZ RH-DX0551BMZZ RH-DX0551BMZZ RH-DX0505BMZZ RH-DX0045BMZZ RH-DX0506BMZZ RH-DX0504BMZZ RH-DX0505BMZZ RH-EX0549BMZZ RH-DX0571BMZZ RH-DX0571BMZZ RH-DX0571BMZZ RH-DX0571BMZZ RH-DX0551BMZZ RH-EX0584BMZZ RH-DX0505BMZZ RH-DX0561BMZZ RH-DX0590BMZZ RH-DX0504BMZZ RH-DX0503BMZZ RH-EX0547BMZZ RH-EX0546BMZZ RH-DX0551BMZZ RH-DX0507BMZZ RH-EX0546BMZZ RH-DX0504BMZZ RH-DX0504BMZZ RH-DX0503BMZZ RH-DX0045BMZZ RH-DX0551BMZZ RH-EX0545BMZZ RH-EX0546BMZZ RH-EX0546BMZZ RH-EX0546BMZZ RH-EX0546BMZZ RH-EX0546BMZZ RH-EX0548BMZZ RH-PX0104BMZZ RH-EX0546BMZZ DIODE 1N4148 ZENER DIODE TZMC7V5 TFK SMD ZENER DIODE TZMC7V5 TFK SMD ZENER DIODE TZMC5V6 TFK SMD ZENER DIODE TZMC7V5 TFK SMD ZENER DIODE TZMC7V5 TFK SMD ZENER DIODE TZMC7V5 TFK SMD ZENER DIODE TZMC7V5 TFK SMD ZENER DIODE TZMC7V5 TFK SMD ZENER DIODE TZMC7V5 TFK SMD ZENER DIODE TZMC7V5 TFK SMD ZENER DIODE TZMC7V5 TFK SMD DIODE 1N4933 DIODE LL4148 TFK SMD DIODE LL4148 TFK SMD DIODE LL4148 TFK SMD DIODE 1N4935 DIODE 1N4148 DIODE 1N4936 DIODE 1N4934 DIODE 1N4935 ZENER DIODE TZMC7V5 TFK SMD DIODE 1N4005 ACPA DIODE 1N4005 ACPA DIODE 1N4005 ACPA DIODE 1N4005 ACPA DIODE LL4148 TFK SMD ZENER DIODE TZMBC6V2 TFK SMD 2% DIODE 1N4935 DIODE RGP15J FAGOR DIODE MBR1100RL MOTOROLA DIODE 1N4934 DIODE 1N4933 ZENER DIODE TZMC6V2 TFK SMD ZENER DIODE TZMC5V6 TFK SMD DIODE LL4148 TFK SMD DIODE 1N4937 ZENER DIODE TZMC5V6 TFK SMD DIODE 1N4934 DIODE 1N4934 DIODE 1N4933 DIODE 1N4148 DIODE LL4148 TFK SMD ZENER DIODE TZMC5V1 TFK SMD ZENER DIODE TZMC5V6 TFK SMD ZENER DIODE TZMC5V6 TFK SMD ZENER DIODE TZMC5V6 TFK SMD ZENER DIODE TZMC5V6 TFK SMD ZENER DIODE TZMC5V6 TFK SMD ZENER DIODE TZMC6V8 TFK SMD LED ROJO ZENER DIODE TZMC5V6 TFK SMD PR 0701 X 0801 RMPTP0028CEZZ RCRSB0243BMZZ PTC RESISTOR CRYSTAL 473.000.6835 (4,43 MHZ) A L L L L L L RCILP0227BMZZ VP-DF120K0000 VP-DF3R3K0000 VP-CF4R7K0000 VP-CF220K0000 RCILF0160BMZZ COIL SMD 390NH LQN1HR39J PEAK COIL 12UH 10% PEAK COIL 3,3UH 10% PEAK COIL 4,7UH 10% PEAK COIL 22UH 10% AC.FILTER 30MH MURATA 0201 0202 0301 0601 0602 0701 DIODES PACKAGED CIRCUITS COILS * CODE S S S S AA AB AA AA S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S AA AA AA AA AA AA AA AA AA AA AA AA AB AA AA AA AE AA AB AB AE AA AA AA AA AA AA AA AE AD AD AB AB AA AA AA AB AA AB AB AB AA AA AA AA AA AA AA AA AA AC AA S AE AE S S S S S S AE AA AA AA AA AF 37GQ-20H REF No. PARTS L L L L ! ! ! DESCRIPTION 0801 0802 1001 1002 VP-DF3R3K0000 VP-NM3R3MR19N VP-DF100K0000 VP-NM680K3R5N PEAK COIL 3,3UH 10% COIL 3,3UH SMD PEAK COIL 10UH 10% COIL 68UH SMD CF 0201 SF 0201 X 1001 RFILC0023CEZZ RFILC0282BMZZ RFILC0121GEZZ SOUND FILTER (TAPED) SAW FILTER J1952M 38.90MHZ FILTER CST8.00MTW MURATA T 0601 T 0701 RTRNF2072BMZZ RTRNZ0580BMZZ SMT 8228 001 3493 PHILIPS 14" SMT 8228 001 3500 PHILIPS 14" C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C VCCCTV1HH220J VCKYTV1HB102K VCKYTV1EF334Z VCEAGA1HW105M VCKYTV1HF223Z VCEAGA1CW106M VCEAGA1HW105M VCEAGA0JW107M VCKYTV1HF104Z VCKYTV1HF103Z VCKYTV1HF103Z VCKYTV1HF103Z VCKYTV1HF103Z VCEAGA1AW476M VCKYTV1HF224Z VCCCTV1HH101J VCKYTV1HF104Z VCCWPA2HL8R2C VCKYTV1HB104K VCKYTV1HB104K VCEAGA1HW225M VCEAGA1HW105M VCEAGA2CW105M VCEAGA1CW107M VCEAGA1CW476M VCEAGA1HW105M VCKYTV1HF103Z VCEAGA1AW227M VCCCTV1HH101J VCEAGA1HW105M VCKYTV1HB102K VCKYTV1HB102K VCEAGA1HW226M VCEAGA1CW476M VCKYTV1HB102K RC-FZ9334BMNJ VCKYTV1HF224Z RC-FZ9334BMNJ VCCCTV1HH101J RC-FZ0135BMZZ VCEAGA1AW227M VCEAGA1AW227M RC-FZ9104BMNJ VCKYTV1HF223Z VCEAGA1VW107M VCEAGA2CW105M RC-FZ0174BMZZ VCKYTV1HB223K RC-FZ0160BMZZ RC-KZ0029CEZZ RC-KZ0029CEZZ RC-KZ0029CEZZ RC-EZ0140BMZZ VCEAGA1CW106M VCKYTV1HB153K CERAM C 22PF 50V 2125SMD CERAM C 1NF 50V 2125SMD CERAM C 330NF 25V 2125SMD ELEC C 1UF 20% 50V CERAM C 22NF 50V 2125SMD ELEC C 10UF 20% 16V ELEC C 1UF 20% 50V ELEC C 100UF 20% 6,3V CERAM C 100NF 50V 2125SMD CERAM C 10NF 50V 2125SMD CERAM C 10NF 50V 2125SMD CERAM C 10NF 50V 2125SMD CERAM C 10NF 50V 2125SMD ELEC C 47UF 20% 10V CERAM C 220NF 50V 2125SMD CERAM C 100PF 50V 2125SMD CERAM C 100NF 50V 2125SMD C 8,2PF 0,25 N1500 500V CERAM C 100NF 50V 2125SMD CERAM C 100NF 50V 2125SMD ELEC C 2,2UF 20% 50V ELEC C 1UF 20% 50V ELEC C 1UF 20% 160V ELEC C 100UF 20% 16V ELEC C 47UF 20% 16V ELEC C 1UF 20% 50V CERAM C 10NF 50V 2125SMD ELEC C 220UF 20% 10V CERAM C 100PF 50V 2125SMD ELEC C 1UF 20% 50V CERAM C 1NF 50V 2125SMD CERAM C 1NF 50V 2125SMD ELEC C 22UF 20% 50V ELEC C 47UF 20% 16V CERAM C 1NF 50V 2125SMD POL FILM C 330NF 5% 63V CERAM C 220NF 50V 2125SMD POL FILM C 330NF 5% 63V CERAM C 100PF 50V 2125SMD POLIP C B32650 6N8 1,5KV ELEC C 220UF 20% 10V ELEC C 220UF 20% 10V POL FILM C 100NF 5% 63V CERAM C 22NF 50V 2125SMD ELEC C 100UF 20% 35V ELEC C 1UF 20% 160V POLIP C B32652 470NF 250V CERAM C 22NF 50V 2125SMD CAP B1133-D1474-M SIEMENS CERAM C 10NF 80,20% 250V CERAM C 10NF 80,20% 250V CERAM C 10NF 80,20% 250V ELEC C 47UF 400V TROBO ELEC C 10UF 20% 16V CERAM C 15NF 50V 2125SMD 0201 0202 0203 0205 0206 0207 0208 0209 0210 0211 0212 0213 0214 0215 0216 0221 0222 0223 0224 0225 0301 0302 0303 0304 0307 0308 0309 0312 0315 0401 0404 0405 0406 0408 0409 0503 0507 0508 0510 0601 0603 0604 0605 0606 0607 0608 0609 0610 0701 0702 0703 0704 0705 0707 0708 CERAMIC FILTERS TRANSFORMERS CAPACITORS REF No. PARTS * CODE S S S S AA AC AA AD ! S AC S AM S AD S AW S AL S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S AA AA AB AA AA AA AA AA AA AA AA AA AA AA AB AA AA AB AA AA AA AA AB AA AA AA AA AA AA AA AA AA AA AA AA AB AB AB AA AE AA AA AA AA AA AB AC AA AF AB AB AB AK AA AA ! 19 DESCRIPTION C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 0709 0710 0711 0712 0713 0714 0715 0717 0718 0722 0723 0724 0725 0726 0728 0801 0802 0803 0804 0805 0806 0807 0808 0809 0810 0811 0812 0813 0814 0815 0816 0817 0818 0819 0820 0901 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1014 1015 RC-KZ0160BMZZ VCEAGA1EW227M VCEAGH2CW107M VCEAGA1CW227M VCEAGA1CW227M VCEAGA1AW477M VCKYTV1HF104Z VCEAGA1CW106M RC-FZ0156BMZZ VCEAGA1CW106M VCCCTV1HH101J VCCCTV1HH101J RC-KZ0160BMZZ VCEAGA1HW225M RC-KZ0035CEZZ VCEAGA1AW477M VCKYTV1HF104Z VCEAGA1AW477M VCKYTV1HF104Z VCEAGA1HW105M VCKYTV1HF104Z VCKYTV1HF104Z VCKYTV1HF104Z VCKYTV1HF104Z VCKYTV1HF104Z VCKYTV1HF104Z VCKYTV1HF104Z VCKYTV1HB472K VCEAGA1HW105M VCEAGA1HW225M VCKYTV1HB472K VCEAGA0JW107M VCKYTV1HF104Z VCEAGA1HW105M VCEAGA1HW105M VCKYTV1HF104Z VCEAGA0JW477M VCCCTV1HH220J VCCCTV1HH220J VCCCTV1HH150J VCCCTV1HH150J VCCCTV1HH220J VCKYTV1HF223Z VCKYTV1HF473Z VCEAGA1AW476M VCKYTV1HF104Z VCKYTV1EF224Z VCKYTV1HF104Z VCEAGA1CW106M VCKYTV1EF334Z CERAM C 2,2NF 4KV X1Y1 ELEC C 220UF 20% 25V ELEC C 100MF 20% 160V ELEC C 220UF 20% 16V ELEC C 220UF 20% 16V ELEC C 470UF 20% 10V CERAM C 100NF 50V 2125SMD ELEC C 10UF 20% 16V C B32529-B6473K SIEMENS ELEC C 10UF 20% 16V CERAM C 100PF 50V 2125SMD CERAM C 100PF 50V 2125SMD CERAM C 2,2NF 4KV X1Y1 ELEC C 2,2UF 20% 50V CERAM C 220PF 2KV ELEC C 470UF 20% 10V CERAM C 100NF 50V 2125SMD ELEC C 470UF 20% 10V CERAM C 100NF 50V 2125SMD ELEC C 1UF 20% 50V CERAM C 100NF 50V 2125SMD CERAM C 100NF 50V 2125SMD CERAM C 100NF 50V 2125SMD CERAM C 100NF 50V 2125SMD CERAM C 100NF 50V 2125SMD CERAM C 100NF 50V 2125SMD CERAM C 100NF 50V 2125SMD CERAM C 4,7NF 50V 2125SMD ELEC C 1UF 20% 50V ELEC C 2,2UF 20% 50V CERAM C 4,7NF 50V 2125SMD ELEC C 100UF 20% 6,3V CERAM C 100NF 50V 2125SMD ELEC C 1UF 20% 50V ELEC C 1UF 20% 50V CERAM C 100NF 50V 2125SMD ELEC C 470UF 20% 6,3V CERAM C 22PF 50V 2125SMD CERAM C 22PF 50V 2125SMD CERAM C 15PF 50V 2125SMD CERAM C 15PF 50V 2125SMD CERAM C 22PF 50V 2125SMD CERAM C 22NF 50V 2125SMD CERAM C 47NF 50V 2125SMD ELEC C 47UF 20% 10V CERAM C 100NF 50V 2125SMD CERAM C 220NF 25V 2125SMD CERAM C 100NF 50V 2125SMD ELEC C 10UF 20% 16V CERAM C 330NF 25V 2125SMD R R R R R R R R R R R R R R R R R R 0201 0202 0203 0204 0211 0212 0213 0219 0220 0221 0222 0301 0302 0303 0304 0305 0306 0307 VRS-TV1JD221J VRS-TV1JD102J VRS-TV1JD102J VRS-TV1JD151J VRS-TV1JD473J VRS-TV1JD472J VRS-TV1JD333J VRS-TV1JD222J VRS-TV1JD101J VRS-TV1JD000J VRS-TV1JD224J VRD-RA2HD472J VRD-RA2HD472J VRD-RA2BE333J RR-XZ0204BMZZ VRD-RA2HD472J VRS-TV1JD104J VRS-TV1JD103J 2125 220 OHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 150 OHM 5% 1/10W SMD 2125 47KOHM 5% 1/10W SMD 2125 4.7KOHM 5% 1/10W SMD 2125 33KOHM 5% 1/10W SMD 2125 2,2KOHM 5% 1/10W SMD 2125 100 OHM 5% 1/10W SMD 2125 0 OHM 5% 1/10W SMD 2125 220KOHM 5% 1/10W SMD RES 4.7KOHM 5% 1/2W RES 4.7KOHM 5% 1/2W RES 33KOHM 5% 1/8W FUS RES 2R2 TAP 5% 1/2W RES 4.7KOHM 5% 1/2W 2125 100KOHM 5% 1/10W SMD 2125 10KOHM 5% 1/10W SMD RESISTORS * CODE S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S AC AA AE AA AA AA AA AA AC AA AA AA AC AA AC AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AB S S S S S S S S S S S S S S S S S S AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA 37GQ-20H REF NoPARTS ! ! ! ! R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 0310 0311 0312 0313 0314 0315 0318 0321 0401 0402 0403 0404 0405 0406 0407 0408 0409 0410 0411 0412 0413 0414 0415 0416 0417 0418 0420 0502 0509 0510 0511 0512 0513 0515 0516 0517 0519 0523 0524 0525 0529 0530 0533 0534 0535 0536 0537 0538 0601 0602 0603 0604 0605 0606 0607 0608 0609 0610 0611 0612 0613 0614 0615 0616 0617 0701 0702 0703 0704 0705 VRS-TV1JD101J VRS-TV1JD104J VRS-TV1JD103J VRS-TV1JD561J VRS-TV1JD102J VRD-RA2BE103J VRS-TV1JD153J VRS-TV1JD102J VRS-TQ2BD750J VRD-RA2HD680J VRS-TV1JD221J VRS-TQ2BD750J VRD-RA2EE750J VRD-RA2EE750J VRS-TQ2BD750J VRS-TV1JD103J VRS-TV1JD223J VRS-TV1JD104J VRS-TV1JD682J VRS-TV1JD682J VRS-TQ2BD221J VRS-TQ2BD221J VRS-TV1JD104J VRS-TV1JD470J VP-NM2R2MR16N VRS-TV1JD000J VRS-TV1JD000J VRD-RA2BE102J VRS-TV1JD102J RR-XZ0200BMZZ VRD-RA2HD1R8J VRS-TV1JD103J VRS-TV1JD683J VRS-TV1JD101J VRD-RA2BE102J VRS-TV1JD184J VRS-TV1JD822J VRD-RA2BE561J VRS-TV1JD392J VRS-TV1JD121J VRD-RA2HD151J VRD-RA2BE184J VRS-TV1JD124J VRS-TV1JD152J VRS-TV1JD824J VRD-RA2BE472J VRD-RA2BE153J VRS-TV1JD222J VRS-TV1JD222J VRS-TV1JD471J VRD-RA2HD331J VRD-RA2HD471J VRD-RA2HD6R8J VRD-RA2HD6R8J RR-XZ0200BMZZ VRD-RA2BE183J VRD-RA2HD2R2J VRD-RA2HD270J VRD-RA2HD270J VRN-VV3AB2R7J VRD-RA2BE153J VRS-TV1JD561J RR-XZ0212BMZZ RR-XZ0242BMZZ VRD-RA2BE102J VRD-RA2HD474J VRD-RA2HD474J VRD-RA2BE220J VRS-TV1JD101J VRS-TQ2BD331F DESCRIPTION 2125 100 OHM 5% 1/10W SMD 2125 100KOHM 5% 1/10W SMD 2125 10KOHM 5% 1/10W SMD 2125 560 OHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD RES 10KOHM 5% 1/8W 2125 15KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD OX RE 75 OHM 5% 1/8W SMD RES 68 OHM 5% 1/2W 2125 220 OHM 5% 1/10W SMD OX RE 75 OHM 5% 1/8W SMD RES 75 OHM 5% 1/4W RES 75 OHM 5% 1/4W OX RE 75 OHM 5% 1/8W SMD 2125 10KOHM 5% 1/10W SMD 2125 22KOHM 5% 1/10W SMD 2125 100KOHM 5% 1/10W SMD 2125 6.8KOHM 5% 1/10W SMD 2125 6.8KOHM 5% 1/10W SMD OX RE 220 OHM 5% 1/8W SMD OX RE 220 OHM 5% 1/8W SMD 2125 100KOHM 5% 1/10W SMD 2125 47 OHM 5% 1/10W SMD COIL 2,2UH SMD 2125 0 OHM 5% 1/10W SMD 2125 0 OHM 5% 1/10W SMD RES 1KOHM 5% 1/8W 2125 1KOHM 5% 1/10W SMD FUS RES 1R0 TAP 5% 1/2W RES 1,8 OHM 5% 1/2W 2125 10KOHM 5% 1/10W SMD 2125 68KOHM 5% 1/10W SMD 2125 100 OHM 5% 1/10W SMD RES 1KOHM 5% 1/8W 2125 180KOHM 5% 1/10W SMD 2125 8,2KOHM 5% 1/10W SMD RES 560 OHM 5% 1/8W 2125 3.9KOHM 5% 1/10W SMD 2125 120 OHM 5% 1/10W SMD RES 150 OHM 5% 1/2W RES 180KOHM 5% 1/8W 2125 120KOHM 5% 1/10W SMD 2125 1.5KOHM 5% 1/10W SMD 2125 820KOHM 5% 1/10W SMD RES 4,7KOHM 5% 1/8W RES 15KOHM 5% 1/8W 2125 2,2KOHM 5% 1/10W SMD 2125 2,2KOHM 5% 1/10W SMD 2125 470 OHM 5% 1/10W SMD RES 330 OHM 5% 1/2W RES 470 OHM 5% 1/2W RES 6,8 OHM 5% 1/2W RES 6,8 OHM 5% 1/2W FUS RES 1R0 TAP 5% 1/2W RES 18KOHM 5% 1/8W RES 2.2 OHM 5% 1/2W RES 27 OHM 5% 1/2W RES 27 OHM 5% 1/2W MET FILM R 2.7 OHM 5% 1W RES 15KOHM 5% 1/8W 2125 560 OHM 5% 1/10W SMD FUS RES 10R TAP 5% 1/2W FUS RES 3K3 TAP 5% 1/2W RES 1KOHM 5% 1/8W RES 470KOHM 5% 1/2W RES 470KOHM 5% 1/2W RES 22 OHM 5% 1/8W 2125 100 OHM 5% 1/10W SMD OX RE 330 OHM 1% 1/8W SMD * CODE S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AC AA AA AA AA AB AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AB AA AA AA AA AA AA AA AB AB AA AA AA AA AA AA REF No PARTS ! ! 20 R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 0706 0707 0708 0710 0711 0714 0715 0716 0718 0719 0720 0721 0722 0723 0724 0725 0726 0801 0802 0803 0804 0805 0806 0807 0808 0809 0810 0811 0812 0813 0814 0815 0816 0817 0818 0819 0820 0821 0822 0823 0824 0825 0826 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 VRS-TV1JD681J VRC-UA2HG825K VRC-UA2HG825K VRD-RA2HD221J VRS-TV1JD220J VRD-RA2HD821J VRS-TV1JD100J VRD-RA2HD473J VRD-RA2BE472J VRS-TV1JD272J VRD-RA2HD561J VRS-TV1JD220J VRS-TV1JD121J VRS-TV1JD102J VRS-TV1JD151J VRS-TV1JD391J VRS-TQ2BD000J VRS-TV1JD221J VRS-TV1JD221J VRS-TV1JD221J VRS-TV1JD102J VRS-TV1JD102J VRS-TV1JD102J VRS-TV1JD102J VRS-TV1JD102J VRS-TV1JD473J VRS-TV1JD271J VRS-TV1JD271J VRS-TV1JD271J VRS-TV1JD273J VRS-TV1JD105J VRS-TV1JD223J VRD-RA2BE272J VRS-TV1JD222J VRS-TV1JD153J VRD-RA2BE101J VRD-RA2BE101J VRS-TV1JD822J VRS-TV1JD334J VRS-TV1JD102J VRS-TV1JD750J VRS-TV1JD750J VRS-TV1JD750J VRS-TV1JD101J VRS-TV1JD101J VRS-TV1JD101J VRS-TV1JD101J VRS-TV1JD101J VRS-TV1JD101J VRS-TV1JD101J VRS-TV1JD332J VRS-TV1JD102J VRS-TV1JD273J VRD-RA2HD472J VRD-RA2HD472J VRD-RA2HD472J VRS-TV1JD223J VRS-TV1JD223J VRS-TV1JD331J VRS-TV1JD271J VRS-TV1JD103J VRS-TV1JD102J VRS-TV1JD562J VRS-TV1JD472J VRS-TV1JD472J VRS-TV1JD472J VRS-TV1JD472J VRS-TV1JD472J VRS-TV1JD000J VRD-RA2BE101J DESCRIPTION 2125 680 OHM 5% 1/10W SMD SOLID R 8,2MOHM 10% 1/2W SOLID R 8,2MOHM 10% 1/2W RES 220 OHM 5% 1/2W 2125 22 OHM 5% 1/10W SMD RES 820 OHM 5% 1/2W 2125 10 OHM 5% 1/10W SMD RES 47KOHM 5% 1/2W RES 4,7KOHM 5% 1/8W 2125 2,7KOHM 5% 1/10W SMD RES 560 OHM 5% 1/2W 2125 22 OHM 5% 1/10W SMD 2125 120 OHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 150 OHM 5% 1/10W SMD 2125 390 OHM 5% 1/10W SMD 3216 0 OHM 5% 1/8W SMD 2125 220 OHM 5% 1/10W SMD 2125 220 OHM 5% 1/10W SMD 2125 220 OHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 47KOHM 5% 1/10W SMD 2125 270 OHM 5% 1/10W SMD 2125 270 OHM 5% 1/10W SMD 2125 270 OHM 5% 1/10W SMD 2125 27KOHM 5% 1/10W SMD 2125 1MOHM 5% 1/10W SMD 2125 22KOHM 5% 1/10W SMD RES 2,7KOHM 5% 1/8W 2125 2,2KOHM 5% 1/10W SMD 2125 15KOHM 5% 1/10W SMD RES 100 OHM 5% 1/8W RES 100 OHM 5% 1/8W 2125 8,2KOHM 5% 1/10W SMD 2125 330KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 75 OHM 5% 1/10W SMD 2125 75 OHM 5% 1/10W SMD 2125 75 OHM 5% 1/10W SMD 2125 100 OHM 5% 1/10W SMD 2125 100 OHM 5% 1/10W SMD 2125 100 OHM 5% 1/10W SMD 2125 100 OHM 5% 1/10W SMD 2125 100 OHM 5% 1/10W SMD 2125 100 OHM 5% 1/10W SMD 2125 100 OHM 5% 1/10W SMD 2125 3.3KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 27KOHM 5% 1/10W SMD RES 4.7KOHM 5% 1/2W RES 4.7KOHM 5% 1/2W RES 4.7KOHM 5% 1/2W 2125 22KOHM 5% 1/10W SMD 2125 22KOHM 5% 1/10W SMD 2125 330 OHM 5% 1/10W SMD 2125 270 OHM 5% 1/10W SMD 2125 10KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 5,6KOHM 5% 1/10W SMD 2125 4.7KOHM 5% 1/10W SMD 2125 4.7KOHM 5% 1/10W SMD 2125 4.7KOHM 5% 1/10W SMD 2125 4.7KOHM 5% 1/10W SMD 2125 4.7KOHM 5% 1/10W SMD 2125 0 OHM 5% 1/10W SMD RES 100 OHM 5% 1/8W * CODE S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S AA AB AB AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA 37GQ-20H REF No PARTS R R R R R R R ! ! 1028 1029 1030 1031 1032 1033 1034 VRD-RA2BE101J VRD-RA2BE101J VRS-TV1JD101J VRS-TV1JD101J VRS-TV1JD393J VRS-TV1JD472J VRS-TV1JD154J DESCRIPTION RES 100 OHM 5% 1/8W RES 100 OHM 5% 1/8W 2125 100 OHM 5% 1/10W SMD 2125 100 OHM 5% 1/10W SMD 2125 39KOHM 5% 1/10W SMD 2125 4.7KOHM 5% 1/10W SMD 2125 150KOHM 5% 1/10W SMD MISCELLANEOUS PARTS F 0701 QFS-C3226CEZZ F 0701 QFSHD1001BMZZ F 0701 QFSHD1002BMZZ FB 0301 RBLN-0037CEZZ FB 0701 RBLN-0020CEZZ FB 0702 RBLN-0037CEZZ F 0401 RBLN-0037CEZZ (H) QCNW-2834BMZZ (K) QCNW-2835BMZZ A 0000 QPLGN0304CEZZ F 0000 QPLGN0505CEZZ G 0000 QPLGN0207CEZZ J 0019 VRS-TV1JD332J J 0054 VRS-TV1JD000J J 0056 VRS-TQ2BD000J J 0061 VRS-TV1JD000J J 0062 VRS-TV1JD000J J 0067 RC-FZ4105BMNJ JF 0016 VRS-TV1JD000J JF 0017 VRS-TV1JD000J JF 0018 VRS-TV1JD000J JL 0005 QCNW-3055BMZZ RMC0001 RRMCU0222CEZZ S 0000 QPLGN0241CEZZ S 0701 QSW-P0588CEZZ S 1001 QSW-K0079GEZZ S 1002 QSW-K0079GEZZ S 1003 QSW-K0079GEZZ S 1004 QSW-K0079GEZZ SC 0401 QSOCZ2107BMZZ FUSE T3.15AH 250V FUSE HOLD.EYF52BC=PANASON FUSE HOLD.EYF52BC=PANASON BALUN FBA04HA90088-00 T/Y BALUNE BALUN FBA04HA90088-00 T/Y BALUN FBA04HA90088-00 T/Y WIRE (H) 14" WIRE (K) 14" PLUG PLUG PLUG 2125 3.3KOHM 5% 1/10W SMD 2125 0 OHM 5% 1/10W SMD 3216 0 OHM 5% 1/8W SMD 2125 0 OHM 5% 1/10W SMD 2125 0 OHM 5% 1/10W SMD POL FILM C 1MF 50V 5% ECQ-V 2125 0 OHM 5% 1/10W SMD 2125 0 OHM 5% 1/10W SMD 2125 0 OHM 5% 1/10W SMD WIRE BETWEEN GNDS CA-1 R/C RECEIVER PLUG SWITCH ESB91632A-V TACTILE SWITCH TACTILE SWITCH TACTILE SWITCH TACTILE SWITCH SOCKET PWB-B SOCKET UNIT Q Q Q Q Q Q 0870 0871 0872 0883 0885 0887 RH-TX0181BMZZ RH-TX0181BMZZ RH-TX0181BMZZ RH-TX0180BMZZ RH-TX0180BMZZ RH-TX0180BMZZ D D D D D 0811 0812 0860 0861 0862 RH-DX0551BMZZ RH-DX0551BMZZ RH-DX0551BMZZ RH-DX0551BMZZ RH-DX0551BMZZ TRANSISTORS TRT BF422 TOSHIBA TRT BF422 TOSHIBA TRT BF422 TOSHIBA TRT BF421 TOSHIBA TRT BF421 TOSHIBA TRT BF421 TOSHIBA DIODES DIODE LL4148 TFK SMD DIODE LL4148 TFK SMD DIODE LL4148 TFK SMD DIODE LL4148 TFK SMD DIODE LL4148 TFK SMD COILS L 0861 VP-CF120K0000 PEAK COIL 12UH 10% C C C C C C C C VCCCTV1HH471J VCCCTV1HH471J VCCCTV1HH471J VCCCTV1HH471J VCCCTV1HH471J VCCCTV1HH471J VCKYPA2HB102K VCKYPB3DE472Z CERAM C 470PF 50V 2125SMD CERAM C 470PF 50V 2125SMD CERAM C 470PF 50V 2125SMD CERAM C 470PF 50V 2125SMD CERAM C 470PF 50V 2125SMD CERAM C 470PF 50V 2125SMD CERAM C 1NF 10% 500V C DE1110-1E472Z2K MURATA 0860 0861 0862 0871 0872 0873 0874 0876 CAPACITORS REF No PARTS * CODE S S S S S S S AA AA AA AA AA AA AA S S S S S S S S S S S S S S S S S AE AA AA AA AB AA AA AD AE AB AB AA AA AA AA AA AA AE AA AA AA AB AG AA AM AA AA AA AA AE S S S S S S S S S S S S ! S S S S S S AB AB AB AB AB AB S S S S S AA AA AA AA AA ELEC C 10UF 20% 200V C CAPACITOR R R R R R R R R R R R R R R R MET OX RES 15 KOHM 5% 2W MET OX RES 15 KOHM 5% 2W MET OX RES 15 KOHM 5% 2W 2125 470 OHM 5% 1/10W SMD 2125 470 OHM 5% 1/10W SMD 2125 470 OHM 5% 1/10W SMD RES 2,7KOHM 5% 1/2W RES 2,7KOHM 5% 1/2W RES 2,7KOHM 5% 1/2W 2125 470 OHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 1KOHM 5% 1/10W SMD 2125 470 OHM 5% 1/10W SMD 2125 470 OHM 5% 1/10W SMD 0862 0864 0866 0879 0880 0881 0883 0885 0887 0888 0892 0893 0894 0898 0899 VRS-PU3DB153J VRS-PU3DB153J VRS-PU3DB153J VRS-TV1JD471J VRS-TV1JD471J VRS-TV1JD471J VRD-RA2HD272J VRD-RA2HD272J VRD-RA2HD272J VRS-TV1JD471J VRS-TV1JD102J VRS-TV1JD102J VRS-TV1JD102J VRS-TV1JD471J VRS-TV1JD471J SC 0881 QSOCV0842CEZZ L 0003 QTIPM0017CEFM ! ! DESCRIPTION C 0878 VCEAGA2DW106M C 0879 VCCCPA1HH101J 1 1.2 1.3 1.4 1.5 1.6 2 * CODE S AC S AA RESISTORS S S S S S S S S S S S S S S S MISCELLANEOUS PARTS CRT SOCKET TIP S AG S AA MISCELLANEOUS PARTS CACCB5007BMV0 VSP0080PBL6YS TINS-6825BMN0 TINS-6833BMN0 RRMCG1059BMSA QANTL0001BMZZ A.C CORD SPEAKER 2.0W 32 OHM DAIWA OWNERS MANUAL 37GQ20H QUICK GUIDE (ENGLISH) REMOTE CONTROL UNIT LOOP ANTENNA ELDOR CCABA1284BMV0 HBDGB1017BMSB HDECQ0036BMSA HDECQ0035BMSA JBTN-1047BMSA JBTN-1046BMSA GCABB1107BMKA CABINET SET 37GQ20SDE SHARP BADGE(37EM-24S) R/C DECORATION LED DECORATION UP/DOWN BUTTON(37EM-24S) POWER BUTTON(37EM-24S) REAR CAB. 37GQ-20S AC AC AC AA AA AA AA AA AA AA AA AA AA AA AA CABINET PARTS S S S S S S AU AH AC AA AS AM S S S S S S S AX AC AB AB AD AB AU 2 1 1.5 1.2 1.3 1.4 S AC S S S S S S S S 1.6 AA AA AA AA AA AA AA AC 21 37GQ-20H TROUBLESHOOTING TABLES. NO PICTURE Check Picture setting by R/C. Signal should be received. Check the tuner supply and band biases. Both must be approx. 5V DC Normal NO Is tuning voltage normal at Pin (2) of Tuner? Check Q1001, IC1001, IC1003 YES -Check the AGC Voltage: Pin (1) of Tuner. -Check the SAW Filter: SF201 22 37GQ-20H NO SOUND Check Sound setting by R/C. Signal should be received. NO Does approx. 20V DC appear on C710? YES Check D707, C710 NO Does Sound Signal appear at Pin(6) of IC801? Check IC801, C301 YES YES Is Audio Amplifier muted? NO Check IC1001, Q305 23 Check R304, Q301, Q302 37GQ-20H NO RASTER Fuse Blown Check F701 Normal Replace Fuse Check Voltage on C705 (Approx. 325V DC) Fuse Blown again Normal Check IC701 Approx. 0V Check Voltage on C711 (Approx. 105V DC) Abnormal Normal Normal Check D708, D717 Check CRT connector K1... K5 bias Normal Normal Check D701, D702, D703, D704, C705. Check Q601, Check Q601, C711 C711 Check R705, R706, R715, D706 24 Check C878 Abnormal Check IC801 37GQ-20H NO VERTICAL SCAN Is IC501 bias normal? YES Check R510, Q501, Q502, Q503 NO Check D709, D710, IC501 NEITHER VERTICAL NOR HORIZONTAL SYNCHRONIZATION Check IC801, C815, C816, R818 DEFECTIVE VERTICAL AMP. AND VERTICAL LINEARITY Readjust Vertical Size. Vertical size is abnormal Vertical linearity is abnormal Check Q505, Q507, Q509 Check D505, D506 25 37GQ-20H NO SPECIFIC COLOUR NO Is some colour produced in B/W Broadcast reception? YES Check IC801, C812, C813, R813, X801 Is the white balance properly adjusted? YES The Picture Colour is Red or cyan. The Picture Colour is green or magenta. The Picture Colour is Blue or Yellow. Check Q871, Q883 and their adjacent circuits. Check Q870, Q885 and their adjacent circuits. Check Q872, Q887 and their adjacent circuits. UNLOCKED COLOUR (NO COLOUR SYNCHRONIZATION) Check setting of Colour Standard in Service Mode. Normal Check IC801, C812, C813, R813, X801 26 NO Readjust The White Balance. 37GQ-20H NOTES: 27 37GQ-20FP RECICLED PAPER PRINTED BY: 22 ON:
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