docservice manual - UV-3R
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service manual - UV-3R
UHF/VHF FM TRANSCEIVER PX-777/328/338 SERVICE MANUAL ------------------CONTENTS-------------------------INTRODUCTION……………………………………………………2 GENERAL ................................................................................. 2 REALIGNMENT……………………………………………………..3 TROUBLE SHOOTING GUIDE……………………………………6 TECHNICAL SPECIFICATION ............................................. …7 FUNCTION SPECIFICATION…………………………………….8 CIRCUIT DESCRIPTION ......................................................... 9 SEMICONDUCTOR DATA.............................................……. 16 PARTS LIST............................................................................ 17 BLOCK DIAGRAM …………………........................................ 22 PCB BOARD………………………………………………………23 SCHEMATIC DIAGRAM....................................................... 25 INTRODUCTION SCOPE OF THIS MANUAL This manual is intended for use by experienced technicians familiar with similar types of commercial grade communications equipment. It contains all required service information for the equipment and is current as of the publication data. Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions. These are issued as required. ORDERING REPLACEMENT PARTS When ordering replacement parts or equipment information, the full part identification number should be included. This applies to all parts : components, kits, or chassis. If the part number is not known, include the chassis or kit number of which it is a part, and a sufficient description of the required component for proper identification. PERSONNEL SAFETY The following precautions are recommended for personnel safety: DO NOT transmit until all RF connectors are verified secure and any open connectors are properly terminated. SHUT OFF and DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere. This equipment should be serviced by a qualified technician only. SERVICE This radio is designed for easy servicing. Refer to the schematic diagrams, printed circuit board views, and alignment procedures contained within. GENERAL Your Transceiver is an electronic product of exact design and should be treated with care .The suggestions below will help you to fulfill any warranty obligations and to enjoy this product for many years. Do not attempt to open the unit. Non-expert handling of the unit may damage it. When using regulated power supply, take notice of power voltage must be between 6V and 8V to avoid damaging the unit. Do not store the Radio under the sunshine or in hot areas. High temperatures can shorten the life of electronic devices, and warp or melt certain plastics. Do not store the Radio in dusty, dirty areas Keep the Radio dry. Rainwater or damp will corrode electronic circuits. If it appears that the Radio diffuses peculiar smell or smoke, please shut off its power immediately and take off charger or battery in the Radio, then contact with PUXING agency. Do not transmit without antenna. REALIGNMENT 1. MODE: USER MODE: For normal use, when turn on enter this mode. PC MODE: used to read and program radio. SELF-PROGRAMMING MODE: Hold down [MONI] and [menu] key accomplished by turning on the VOL/POWER switch until “SELF” displays. 2. 2. LCD DISPLAY 3. SELF-PROGRAMMING MODE For frequency,signal,feature write to the radio TECHNICAL SPECIFICATION General Frequency Range Working Temperate Operating Voltage Operate Mode 136 ― 174MHz ， 350 — 390MHz ， 400 — 470MHz,245Mhz －20℃―＋50℃ DC 7.2V Simplex or Semi-duplex Channel spacing Dimension Weight Antenna impedance 25Khz/12.5Khz 100mm×55mm×32mm (Not included Antenna) 220g (Including battery) 50Ω Transmitter Frequency Stability Output Power Max Frequency Deviation Audio Distortion Modulation Character Adjacent Channel Power Spurious Radiation Occupied Bandwidth ±2.5PPM 5W/4W ±0.5W ≦5KHz ≦3% +3dB—-3dB ≥65dB ≤7.5UW ≤16KHz Receiver RF Sensitivity Audio Distortion Audio Response Adjacent Channel Selectivity Intermodulation Rejection Spurious Response Blocking ＜0.2UV ≦3% +2dB—-10dB ≥60dB ≥60dB ≥60dB ≥80dB CPU PIN FUNCTION ITEM DESCRIPTION 1 CLK ROM 2 D0 3 D1 4 D2 5 D3 6 PLL CS 7 LAMP2 8 K1 9 K2 10 K3 11 K4 12 AVDD 13 RX0 14 RX1 15 TX1 16 TX0 17 BEEP/QT 18 ACC 19 AVSS 20 APC/TUNE 21 AT X 22 AR X 23 BATT Test 24 VOX 25 AN SQL 26 OSCin 27 OSCout 28 VSS 29 EN1 30 EN2 31 MONI 32 Reset 33 Vdd 34 5TC 35 LED G 36 TXD/LED R 37 AFC 38 5CC 39 P-AMP 40 N/W/LD 41 PTT/RX D 42 HT1621 CS 43 LAMP1 44 DQT PX-777 I/O I/O O O O O O O I I I I O I I O O O O I O I I I O I I I I O O O O O O O I I O O FUNCTION CLOCK AND EEPROM Key scan output Key scan output PLL clock port/Key scan output PLL data port/Key scan output PLL CS port Lcd/backlight control output Key scan input Key scan input Key scan input Key scan input MPU+5MV IF output control port IF input control port MIC input control port MIC output control port BEEP output /CCTCS tone signal output MPU power filter Connect to VSS Automatic power &frequency automatic gain output Transmitter data output select control Receiver data input/audio amplifier adjustment input Battery check /Reset VOX input Squelch signal input port Internal oscillator input Internal oscillator output GND Encoder data input Encoder data input Monitor key input CPU reset port +5V power supply TX power supply control output LED green RX232 output/ LED red Audio amplifier control input Power supply control output Audio amplifier power supply control output Unlock detection PTT key input/RX232 input LCD CS port Backlight control output DTC audio signal output PX777 part list(136-174MHz) Footprint Designators Comment Quantity 电容类 C0402 C0402 C0402 备注 0.5P 1P 1.5P 2 1 1 C0402 100P 12 C0402 102P 33 C0402 103P 32 C0402 104P 37 C0402 105P 4 C0402 10P 9 C0402 C0402 C0402 C0402 C0402 120P 12P 15P 18P 1P 1 3 1 3 2 C0402 220P 7 C0402 C0402 C0402 C0402 C0402 C0402 C0402 C0402 222P 223P 224P 22P 273P 27P 332P 333P 1 2 1 1 3 1 2 1 C332 C231 C346 C423 C535 C416 C387_1 C121 C156 R808 C123 C413 C623 C450 C174 C668 C514 CAP C411 C663_1 C103 C182 CAP C201 C517 C263 C348 C259 C224 C113 18NH C327 C264 C591 C272 C421 C256 C353 C414 C134 C426 C516 C349 C456 C536 C415 C318_1 C132 C223 C386_1 C455 C269 CAP C665_1 C181 C454 C392 CAP C453 C315 C317_2 C313_2 C175 C537 C538 C315_2 C314_2 CAP CAP C593 CAP C316_2 C312_2 C326_1 C227 C135 C133 C142 C144 C222 C322 C612 CAP C146 C145 C176 C122 C515 C254 C610 C451 C633 C529 C528 C613 C105 C581 C520 C701 C244 C247 C321 C351 C621 CAP C594 C301 C391 C257 C268 C266 C267 C202 C203 C561 C271 C388_1 C319_1 C250 CAP C101 C573 C571 C511 C521 C208 C316 CAP C354 C662 C302 C418 C102 C147 C661 C131 C611 C609 C664 C255 C361 C363 C362 C213 C330 C331 C241 C359 C523 C246 C329 C394 C265 C513 C417 C512 C556 C555 C432 PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn C592 C0402 C0402 33P 3P 2 2 C0402 470P 35 C0402 C0402 C0402 C0402 C0402 C0402 C0402 C0402 0603电容 C0603 C0603 C0603 C0603 C0603 C0603 C0603 C0603 太阳电诱 C0805 C0805 C0805 473P 47P 5P 680P 683P 6P 82P 8P 3 2 2 2 1 1 1 3 C126 C226 C262 C112 C177 C356 C412 C180 C424 C393 C215 C428 C543 C352 C395 C211 C343 C232 C258 C111 C317 C358 C622 C260 C431 C324 C229 C235 10P 15P 20P 22P 470P 56P 6P 104P 5 3 1 3 1 1 2 1 C163 C153 C152 C168 C162 C155 C325 L333 C167 C161 C165 C164 C166 R818 0.1uF 1uF 2.2uF 4 4 4 C0805 4.7uF 6 E367_1 E454 E435 E412 E364 E319_1 E413 E242 R0402 0R 10 R457 R134 R0402 1.8K 1 R0402 100K 9 R0402 100R 11 L121 R235 R365_1 R413 R321 R594 C546 C127 C243 C313 C632 C532 C458 C666 C125 C314 C204 C531 C173 C311 C141 C355 CAP C534 C667 C169 C154 C541 C143 E474 E180 E311 C221 C233 C312 C310 C533 C347 C433 C344 E411 C104 E363_1 E326_1 E273 R0402电阻 R0402 10K 14 R0402 10R 4 R0402 150K 10 R0402 R0402 150R 15K 2 4 R258 R543 R561 R458 R541 R173 R456 R519 R301 R314 R595 R391 R429 R184 R101 R127 R582 R170 R362_2 R522 R663 R364_1 R363_2 R362 C251 R662 R524 R352 R269 R351 R434 R113 R131 R363 R547 R459 R453 R333 R361_2 R820 R125 R354 R392 R172 R171 R583 R529 R809 R201 R203 R528 R223 R175 R174 15K R478 PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn R111 R0402 R0402 180K 18K 2 2 R0402 1K 14 R0402 R0402 R0402 R0402 R0402 R0402 R0402 R0402 R0402 R0402 R0402 R0402 R0402 1K5 1M 1M8 2.2K 2.7K 220K 220R 20K 22K 22R 270k 270R 27K 2 2 2 1 1 4 6 3 4 2 1 3 3 R0402 2K2 8 R0402 R0402 R0402 3.3K 30K 330R 3 2 3 R0402 33K 6 R0402 R0402 R0402 R0402 R0402 39K 3K3 3K9 470R 470K 1 4 1 1 1 R0402 47K 15 R0402 47R 4 R0402 4K7 12 R0402 R0402 R0402 R0402 R0402 R0402 R0402 R0402 R0603 R1206电阻 560R 56K 5K6 680K 680R 68K 6K8 82K 0R 3 2 2 1 1 2 1 2 3 R265 R414 R573 R666 R417 R421 R664_1 R428 R259 R252 R389_1 R544 R552 R112 R665 R156 R556 R255 R103 R367_1 R422 R128 R426 33K R554 R435 R123 R572 R553 R263 R187 R591 R593 R251 R312_2 R313 R596 R393 R124 R183 R433 R261 R254 R667 R411 R668 R551 R181 R331 R348 R312 R472 R436 R415 R313_2 R515 R315 R512 R571 R244 R455 R202 R302 R423 R155 R141 R452 R516 R366_1 R177 R811 R427 R358 R555 R451 R126 R431 R432 R355 R359 R357 R592 R132 R525 R142 R221 R247 R574 R262 R518 R322 R581 R597 R222 R326_1 R133 R272 R273 R243 R311 L323 R412 R368_1 R311_2 R517 R661 R356 R416 R114 R542 R185 R424 R521 L591 L133 R264 R143 R538 R527 R186 R387 R526 R182 R575 R271 R576 L342 R110 R523 L331 PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn R1206 L0603电感 0.39 3 L0603 100NH 9 L0603 L0603 L0603 L0603 L0603 L0603 L0603 101T 1UH 220NH 33NH 47nH 560UH 6.8UH 1 1 5 1 1 1 2 L0805 101T 5 L1008 R12 L0805 R22 L1310 1uH L2520 1R0 L0805 68NH L0805 R15 二极管类 D_ESC B9 D_ESC HSC277 D_SMA 1SR154-400 D_USC 1SV220 D_USC MA77 D0603 GREEN D0603 RED D-ESC PMSD4148 D-USC 3V D-USM-MA742 MA742 集成类 SOP8 24C16 SOP8 LM4558 SOT24 3SK241 SOT89 2SC4988 SRP8 10K SRP8 1K SSOP10-P-225 TA7368F SSOP16-225 TA31136 SSOP8 LM2904V U-SSOP20-225 LMX2332 三极管类 T_ESM 2SC4617 T_ESM 2SJ243 T_ESM 2SK1824 T_ESM DTA114EE T_ESM DTC114EE 4 1 1 2 3 1 R104 R105 R106 L411 L326_1 L521 L391 R807 L143 L352 L392 L321 L611 L511 L313 L111 L315 L325 L155 L168 L246 L225 L215 L354 L351 L348 L341 L640 L131 L141 L343 L248 L132 L229 L241 D322 D321 D212 D235 D611 D323 D155 D571 D573 D312_1 D311 R806 D661_1 1 1 2 1 1 2 1 1 1 1 U561 U411 T241 T221 T121 PR511 PR752 PR311 1 U451 U261 U170 U311_1 T311 T312 T541 T261 T451 100NH C697 高频叠层 瓷珠 4 4 1 1 1 1 1 2 1 1 3 1 1 2 3 L122 D342 D211 T421 T431 T573 T571 T572 L242 高频叠层 高频叠层 高频叠层 L227 L316 D341 D111 PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn 瓷珠 瓷珠 绕线 丰华绕线 太诱绕线 太诱绕线 高频叠层 绕线 T_SOT89 2SK3078 T_SOT89 5V T_TSM 2SK508NV T_USM 2SC4215 T_USM 2SC4226-R25 T_USM DTC114EE T_TSM 2SB624 2SK3276 2SK3476 T_USM 1SS372 T_USM 2SC3356 T_USM DTC114EE T_USM MRF497 T_USV UMC4 T-ESM-2SC4738 2SC4738 T-ESM-DTA114EEDTA114EE T-ESM-DTA114EEDTA114YE 电解类 ECS2213 100uF ELA3216 10uF 晶体类 CR_DS0603 32.768KHz CR_DS6055 29.250MHz FX-DS0971 14.4MHz 可调类 VR1208 10K VR1208 50K 线圈类 LC042320 3T LC042424 4T LC042426 5T L5T 8T LC032326 6T 其它类 PEF450R15KR1 450K QFP44 QFP44 ANT ANT C28 C28 JK-ST-106 2.5mm JK-ST-301 3.5mm JP-18-1 18PIN SW-SKRE ANKEY SW-SKRT ANKEY 1 2 2 2 3 2 5 1 3 1 2 1 1 1 1 1 T131 U631 T331 T251 T361 T181 T452 T141 D411 T111 T181 T411 T313 T662 T661 T663 1 4 E457 E456 1 1 1 CR521 FL251 CR311_1 1 1 VR552 VR471 1 1 2 1 2 L151 L163 L165 L142 L211 1 1 1 1 1 1 1 2 1 U621 T341 T393 T352 T171 T544 T101 T521 T301 2SC4226 2SC4226 T351 T521 T301 T171 BL放大最大 E631 E623 E269 L167 L212 FL261 U511 ANT111 CR261 JK591 JK592 C681 AN593 AN591 AN592 PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn 0.4*1.5*3 0.4*1.5*4 0.4*1.5*5 0.31*1.5*8 0.31*1.5*6 102P A0 Vcc A1 WP A2 CK GND DA 14 15 16 17 18 C883 104P R883 100K C882 27P R277 100K C863 470P R867 10K R884 82K C867 104P C862 332P R861 RES 4K7 1 2 3 C278 104P SQL R278 PB1 0R R529 22K C528 120P R528 100K R527 22K C831 101P C832 101P C833 101P C834 101P C835 101P C304 NC R304 100R C836 101P R718 10K C837 101P C838 101P PR812 1K R865 20K ATX C529 104P C864 104P C524 104P C525 223P C527 150P C526 223P C539 ST-301 R713 R714 100R 100R C731 102P JK611 1 2 R871 4K7 SW811A SW/VOL R845 R843 100R TXi 1 2 3 101T C842 103P BEEP N/W VOX APC/TUNE SB P-AMP MIC SP AFin MONI PTT D3 PB5 VOX APC/TUNE SB 47K MIC SP MONI PTT D3 PB5 D3 PB5 2 C542 104P TXi SQL 47K R842 3 4 5 R540 100K 120P R539 100K R846 L902 R841 C841 103P 4K7 C872 473P 0R R844 100R SB 4K7 C871 472P BEEP TXD/RED C712 R712 221P 1K L711 101T E871 10uF C540 104P R873 4K7 4 5 ST-106 R872 RXi PTT/RXD BEEP 1 2 3 4 5 11 QT JK511 1 MIX in OSC in R274 1K2 C274 104P JP18 A 16 4 27P R276 27K T275 DTA114EE R868 R834 8K2 C276 CR271 C28 C275 104P R866 10K C885 103P MIX IN RX in 13 2SB624 32.768KHz R864 3K3 C272 33P TX in 12 CR881 R863 100R DEV 6 9 11 22K C858 221P R885 15K R288 3K3 N.C. 8 10 0R U261 TA31136F C288 471P C378 104P 10 7 R886 1K8 C271 20P 9 6 R702 0R 221P CR272 21.250MHz N.C. B LCD CS K4 K3 K2 K1 D3 D2 D1 D0 LAMP 2 R862 T461 2SK1824 L886 301T 180K C287 10P C371 223P R373 2K7 T881 C811 27P PR811 47K 4K7 C886 104P 5V C830 102P R371 44 43 42 41 40 39 38 37 36 35 34 PB2 PB1 PB0 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0 C286 C282 104P V bias 5 U811 U-EM44 R372 4K7 221P Vss 4 AVdd RXO RXI TXI TXO Tone LC AVss D/A ATX ARX R717 10K R287 3K9 R286 I C283 104P C284 R285 104P 180K 7 3 C856 392P C857 105P R857 R858 2K2 JP811 LAMP 1 C854 103P C855 333F R855 68K R833 150K R832 150K GND_D SB PB1 5V GND_D HT1621-CS PB5 PB4 PB3 PC7 D3 D2 D1 D0 PC6 MIC+ SP+ C827 103P 12 13 14 15 16 17 18 19 20 21 22 R701 0R RV378 100K 8 R831 2 R827 10K 24C08 150K 1 8 7 6 5 BEEP U821 1 2 3 4 R549 4K7 C853 101P R854 82K (T.Y.) C549 104P C R853 58K C851 104P NC R379 NC GND OSC out E854 4.7uF 104P C547 103P U511 AUDIO R548 680R C548 104P C546 8 7 6 5 SDA SCL OSC RST GND GND VOUT VDD C852 221P 1K2 C372 103P R375 4K7 FL261 C281 450K 102P O 15 1 2 3 4 R852 R-1 L851 101T E283 100R 10uF C285 C280 103P R378 5 4K7 R546 330K C818 104P SB C850 104P R545 10K R818 R283 R374 N-rec MIX out C817 104P 14 R815 4K7 PC0 PC6 PB1 PB5 PB4 PB3 PC7 PC4 PC3 PC2 PC1 T814 DTC114EE 5M R817 4K7 TXD/RED GREEN N/W/LD P-TX/RX 5CC T813 DTC114EE T815 DTA114EE 11 10 9 8 7 6 5 4 3 2 1 D813 RED PB5 PB4 PB3 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 D814 GREEN AD1 AD2 AD3 OSCI OSCO Vss PD1 PD2 PD3 Reset Vdd R814 560R C361 10P 5CC P-TX/RX 5C 5V DQTo 5M 28.8MHZ MOD 5C 5V 23 24 25 26 27 28 29 30 31 32 33 R813 560R R351 180R C359 5P R816 10K L355 3.3uH T351 2SK508NV(K52) 6 E364 0.1uF 15P L353 18nH 7 E363 1uF 33P C352 2P Vcc D352 1SV325 N-det 1SV325 L352 270nH C351 100P C362 1P 13 101T L347 100nH C360 7P IF in 0R C355 RSSI C905 103P E905 10uF C907 103P 0R R364 4K7 C353 9 E907 10uF 2K2 R366 6K8 E367 0.1uF 270nH C347 102P D351 8 5V Gnd SB D 28.8MHZ DQTo PLL_CS PC4 PC3 N/W/LD 15K L361 12 560R 471P U906 5A in out R363 Dec C906 R365 R333 101T FIL in R367 L329 L351 IF out MOD R362 150R R361 QUAD FIL out CV R368 560R AF out C315 101P 11 C314 101P 10 C313 101P PR311 1K 6 R541 47K C256 103P C303 470P T261 2SC4215 C254 103P FL253 29.250MHZ R242 1K 5R R182 R183 47K T251 3SK229 O R238 1K C250 103P R184 220K C911 103P C238 0.5P R231 100R E911 10uF L224 3T C233 470P R230 3K3 C234 0.5P C242 4P L219 39nH 8P VC241 6P D220 HVC350B L223 3T C237 10P R228 220R C232 102P C231 102P APC/TUNE BATT 5T C223 C217 L213 0.3P 0.3P 3T C227 4P5 C221 3P5 VC226 6P L216 3T L214 3T R217 100K D217 HVC350B R535 100K C541 150P 12 C451 103P C447 820P C448 R449 332P 33K 473P C443 680P R444 10K C413 103P 5VOX C410 103P R537 5CC R408 5T C416 R413 5K6 R414 470P 270R 1K C409 470P C411 470P R416 0R R417 1M 33K 33K R435 4K7 473P R405 22K 8 3 R431 30K E431 (T.Y.) 4.7uF U411B R432 C431 2 1K8 C442 C405 102P LM4558 5 7 C404 273P C406 223P 3 3 8 C402 L402 104P C403 470P 101T MIC 6 1K5 223P R406 750K R434 C407 102P R404 18K R403 100K 51K R436 1K8 C434 10P C422 104P R421 820R D422 1SS372 C438 470P 2 3 R437 3K3 2 1 R438 100R R401 1 E401 4.7uF T421 MRF497 E421 2.2uF (T.Y.) 1 R402 1K8 (T.Y.) T411 2SC4738 C417 104P D411 MA742 R415 100R BEEP N/W VOX APC/TUNE SB P-AMP MIC SP AFin MONI PTT D3 PB5 7 U411A R433 LM4558 C441 C408 102P 470R C412 103P R409 1K 100K C216 470P 3 T402 DTA114EE C214 3P 1 T401 DTA114EE 5V C537 33P R441 T431 2SK1824 3.58MHz 1M C538 47P R442 10K C531 103P 2 T441 2SC4617 332P R452 47K R530 10K CR537 1 33K C445 2 R541 47K C534 470P 3K3 R453 22K R446 0R R669 C414 1K 103P MIC MIC 2 16 15 13 12 14 C535 104P 100K C542 104P 1N4148 1 OSC out Vdd OSC in CLK sel 2 CLR TX out RX out TX Aout RX Aout N.C. 3 5 4 11 RX in TX in 6 N.C. N.C. 9 V bias Vss 10 7 8 C539 120P R539 D530 C533 470P R451 C444 104P R443 1M8 1 R448 D215 N.U. R212 15P R213 C222 470P 4 E451 2.2uF (T.Y.) R214 N.U. C212 5T C446 470P R447 1M8 C215 N.U. D214 HVC350B C228 470P T451 2SC4617 L212 3T VC220 6P C401 103P T525 UMC4 R540 100K R197 150K T191 DTC114EE C191 102P 0R R220 100K D531 1N4148 5T NC C186 103P R223 R227 100K C243 470P C501 103P C540 104P 150K R193 NC R186 R187 39K R278 C527 150P 150K 0.39R R226 220K R234 100K 5CC 5V 5T 47K 5T U512 FX/MX128 R194 APC/TUNE BATT 5T C230 470P T231 3SK229 R229 0R I C263 13P C273 224P C532 470P R192 0.39R R173 BATT in L220 18nH L227 3T C247 4P R188 18K C205 102P E913 10uF C246 R237 0R R239 220R out R189 C188 104P R531 10K R527 22K 150K C198 NC R196 150K 101P 1M T181 DTC114EE U911 5A 5M C913 103P 470R C262 2P C279 104P 2 APC/TUNE SB 2 3 4 1 MIX in OSC in C261 103P R262 MIX IN R274 1K2 270nH C251 15P L231 22nH C252 6P R254 470R 680K 16 GND OSC out 5 C253 15P FL251 21.7MHz R261 C272 33P R198 1 C192 10K 0.39R R172 C195 471P 3 BEEP L252 0.56uH L253 FL252 C257 21.7MHz 5P C270 15P 15 Vcc Dec IF in N-rec MIX out 14 N-det RSSI 12 13 IF out R252 R251 1K 2.2K CR272 21.250MHz C271 20P R185 5 7 C102 104P C912 471P C264 104P R264 2.7K U161A LM2904V R171 C171 103P C172 105P R195 150K P-TX/RX C206 103P C282 104P C185 470P 6 5T 5R Gnd I R181 U161B LM2904V C173 103P 10K T102 DTA114EE C103 470P R202 1K 5V 5R 5M O R101 C202 470P 5CC P-TX/RX C283 104P C284 104P R102 4K7 4K7 C255 5P FL261 C281 450K 102P T103 2SB624 C101 104P C201 103P E181 4.7uF (T.Y.) 4 18K 1K C181 102P 5V T201 DTA114EE R256 BATT 5V C301 103P 8 5V C302 103P R301 5T DTA114EE 5C 9 C415 104P BEEP N/W BEEP APC/TUNE SB P-AMP MIC SP AFin MONI PTT D3 PB5 APC/TUNE SB P-AMP MIC SP AFin MONI PTT D3 PB5 10 11 12 C181 102P 5V R102 4K7 R101 R181 U161A LM2904V R185 5 R198 2 150K C198 NC 4 5T R182 C102 104P R183 47K T181 DTC114EE R196 150K 101P 1M R184 220K 0.39R R172 C195 471P 3 C192 10K R171 C171 103P C172 105P R195 150K 1 7 6 T102 DTA114EE C103 470P C185 470P 10K 4K7 R202 1K U161B LM2904V C173 103P R192 R194 150K 150K C602 124P T602 2SB624 0.39R R173 0.39R C604 104P R197 150K R193 NC P-AMP R612 18K C912 471P Gnd R186 5T NC C186 103P R187 39K E651 100uF R231 100R E911 10uF L220 18nH C238 C234 0.5P 8P L224 3T L219 39nH C230 470P R229 0R R228 220R C232 102P APC/TUNE BATT 5T C231 102P R646 0R R223 C217 L213 0R 0.3P 0.3P 3T R227 100K C227 4P5 R220 100K C221 3P5 VC226 6P L216 3T L214 3T R217 100K D217 HVC350B L212 3T C215 N.U. VC220 6P R214 N.U. D215 N.U. D214 HVC350B C228 470P C212 R212 15P 0R BATT C904 103P R213 C222 470P 1 2 3 4 5 C640 1uF C903 103P C641 220P E642 10uF B C214 3P Pout nc PwG Vcc PreG nc Phase Vin NF Ripple R642 150R C643 100P C644 104P C223 U641 TA7368 10 9 8 7 6 R644 10R R226 220K T231 3SK229 L223 3T C237 10P VC241 6P C233 470P R230 3K3 APC/TUNE BATT 5T D C612 470P T191 DTC114EE C191 102P BATT in C911 103P C242 4P 47K C188 104P C205 102P U911 5A R188 L901 101T C C902 102P C901 105P BAT111 BATTERY 100K C216 470P BATT 5T SW411A 5T 5T SB R442 R441 U411A R433 LM4558 C441 3 1 R446 C445 33K 473P C443 680P R444 10K 33K 33K R435 4K7 473P C431 1K5 223P R434 332P 51K R436 1K8 C405 102P LM4558 5 7 C404 273P C406 223P R406 750K C407 102P C416 R413 5K6 R414 470P 270R R401 R403 100K BEEP SW711 C711 103P R421 820R D422 1SS372 3 2 1 2 C713 102P T421 MRF497 E421 2.2uF 1 C417 104P D411 MA742 R415 100R 9 PTT SW713 ANKEY (T.Y.) B R716 4K7 0R R402 1K8 (T.Y.) R669 C414 1K 103P MIC PX4401 MIC 2 1 ANKEY R715 E401 4.7uF T411 2SC4738 2 C411 470P 3 C438 470P R404 18K 470R C412 103P 3 R438 100R BEEP MIC SW712 C422 104P 3 C413 103P 5VOX 101T R450 10R 1 DTA114EE L402 104P C403 470P C434 10P R437 3K3 C402 6 C442 T431 2SK1824 E431 (T.Y.) 4.7uF U411B R432 2 1K8 4 R448 R431 30K RD91 SP AFin R443 1M8 BEEP T441 2SC4617 8 C444 104P C408 102P R405 22K APC/TUNE SB P-AMP C401 103P C446 470P E641 1uF(T. Y.) T611 DTC114EE 2K2 R189 C642 104P R613 2K2 C601 470P P-TX/RX out R601 10K BATT T103 2SB624 C101 104P C201 103P E181 4.7uF (T.Y.) 8 5V T201 DTA114EE C415 104P SCHEMATIC DIAGRAM BEEP N/W BEEP APC/TUNE SB P-AMP MIC SP AFin MONI PTT D3 PB5 APC/TUNE SB P-AMP MIC SP AFin MONI PTT D3 PB5 10 11 12 PX4401 Revision E01D Drawing By Lv Wei Jun Netec 0540 13 14 A 1 2 3 4 5 6 5C C549 104P R858 2K2 R833 150K R832 150K 12 13 14 15 16 17 18 R277 100K R867 10K R884 82K C867 104P R861 RES 2 3 1 MIX in OSC in 4 27P R276 27K 4K7 R274 1K2 C274 104P C278 104P T275 DTA114EE R868 R834 8K2 C276 CR271 C28 C275 104P C862 332P C272 33P MIX IN SQL R278 PB1 0R R529 22K C528 120P R528 100K R527 22K C831 101P C832 101P C833 101P C834 101P C304 NC C835 101P R304 100R R718 10K C836 101P C837 101P C838 101P PR812 1K R865 20K ATX C529 104P C864 104P C524 104P C525 223P C527 150P C526 223P C539 JP18 JK511 ST-301 1 2 3 4 5 R713 R714 100R 100R 11 QT RX in 9 11 C883 104P R883 100K C882 27P DEV TX in 8 10 2SB624 R864 3K3 C863 470P R866 10K C885 103P R288 3K3 6 7 T881 CR881 R885 15K R863 100R U261 TA31136F C288 471P C378 104P N.C. 6 0R 1K8 C271 20P N.C. B LCD CS K4 K3 K2 K1 D3 D2 D1 D0 LAMP 2 R702 0R R886 221P CR272 21.250MHz 10 5 R862 T461 2SK1824 L886 301T 180K C287 10P C371 223P R373 2K7 C886 104P C811 27P PR811 47K 4K7 C286 9 4 22K C858 221P R371 44 43 42 41 40 39 38 37 36 35 34 221P V bias LAMP 1 GND_D SB PB1 5V GND_D HT1621-CS PB5 PB4 PB3 PC7 D3 D2 D1 D0 PC6 MIC+ SP+ C856 392P C857 105P R857 PB2 PB1 PB0 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0 32.768KHz 5V C830 102P JP811 3 C827 103P C855 333F R855 68K U811 U-EM44 R287 3K9 R286 Vss 150K 2 R827 10K 24C08 R831 1 8 7 6 5 C854 103P AVdd RXO RXI TXI TXO Tone LC AVss D/A ATX ARX R372 4K7 7 R549 4K7 A0 Vcc A1 WP A2 CK GND DA BEEP U821 1 2 3 4 R854 82K 12 13 14 15 16 17 18 19 20 21 22 R717 10K 8 C C853 101P R701 0R C282 104P 16 (T.Y.) R853 58K C851 104P RV378 100K I C283 104P C284 R285 104P 180K GND OSC out E854 4.7uF 104P C547 103P U511 AUDIO R548 680R C548 104P C546 8 7 6 5 SDA SCL OSC RST GND GND VOUT VDD C852 221P NC R379 NC 15 SB 1 2 3 4 R852 R-1 R378 1K2 C372 103P R375 4K7 FL261 C281 450K 102P O 5 4K7 R546 330K L851 101T E283 100R 10uF C285 C280 103P 9 R818 C818 104P R351 180R C361 10P R283 R374 C850 104P R545 10K L355 3.3uH T351 2SK508NV(K52) N-rec MIX out C817 104P PB1 PB5 PB4 PB3 PC7 PC4 PC3 PC2 PC1 R815 4K7 15P C362 1P L353 18nH C359 5P PC0 PC6 TXD/RED GREEN N/W/LD P-TX/RX 5CC T814 DTC114EE 33P C352 2P L347 100nH C360 7P 14 E364 0.1uF C355 6 E363 1uF 5M R817 4K7 PB5 PB4 PB3 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 T813 DTC114EE T815 DTA114EE D352 1SV325 C353 5CC P-TX/RX 5C 5V DQTo 5M 28.8MHZ MOD AD1 AD2 AD3 OSCI OSCO Vss PD1 PD2 PD3 Reset Vdd D813 RED 1SV325 L352 270nH C351 100P R364 4K7 5C 5V 11 10 9 8 7 6 5 4 3 2 1 R814 560R D814 GREEN 101T 270nH C347 102P D351 R331 150R C341 5P Vcc 0R 15K L351 C339 4P N-det 0R R333 101T L361 T331 2SK508NV(K52) 13 2K2 R366 6K8 E367 0.1uF 23 24 25 26 27 28 29 30 31 32 33 R813 560R C338 1P L333 15nH 2SC3356 L335 3.3uH 7 R363 L329 C342 1P 22R C340 5P IF in R365 R362 150R R361 R816 10K 11P 8 C905 103P C335 27P R392 120K R345 100K C345 470P RSSI 20 MOD 28.8MHZ DQTo PLL_CS PC4 PC3 N/W/LD 5V E905 10uF C907 103P C333 C332 2P D332 1SV325 CV 560R Gnd SB L332 180nH D333 1SV278 R367 E907 10uF D331 1SV325 C331 100P C906 D C343 470P 12 L331 180nH (T.Y.) R368 560R 471P U906 5A in out C344 104P Dec T322 2SC3356 E326 4.7uF 5R 1K R347 C316 102P C315 101P R346 FIL in C314 101P T332 2SJ243 IF out C313 101P L336 22nH R324 47K C324 470P R326 0R PR311 1K R332 100R QUAD FIL out Vcc 1 C326 102P Vcc 2 Vp 1 Vp 2 19 18 17 Do IF Do RF GND_DGND_D f in RF f in IF f in RF f in IF 16 15 11 NC GND_AGND_A R311 150K U311 C312 LMX2332 NC T352 UMC4 L324 101T C323 470P E323 10uF C322 470P R322 100K (T.Y.) R313 D321 MA2S11 AF out L325 18nH R321 4K7 1 2 3 4 5 9 6 47R 8 R320 470P C321 103P 11 C328 2P T321 2SC4617(S) 10P 10 C327 NC C317 101P C320 4.7uF R377 22K R376 22K R325 1K L326 100nH R312 1K 14 C384 CAP (T.Y.) D312 PMSD4148 10 C382 390P C386 102P Fo LD T362 2SC4215 R387 39K E377 47P C318 102P OSC in C383 560P 3 C325 103P 2 14.4MHz 33K L382 100nH GND GND_D C381 XOUT VC LE C385 82P 5C 7 1 Data 100nH R382 220K R381 10K 4 R388 E C319 104P CR311 C387 102P Clock L363 C388 104P VR351 50K 13 R389 180R R383 RES 12 +5R 5C C329 E319 4.7uF R872 RXi PTT/RXD R871 E871 4K7 C871 R873 4K7 C872 C540 104P R540 100K 120P R539 100K 7 8 9 10 11 12 P_TX P_TX 5T C395 103P C394 471P R395 5K6 L391 100nH C391 102P R111 15K L392 22nH R394 3K3 C114 470P C396 102P T391 2SC3356 T392 2SC3356 C393 33P 15P L393 47nH R396 3K3 R397 220R C397 R398 P 0R R399 3K3 C398 102P C390 NC D111 C111 HSC277 470P R128 120K C132 N.U. R122 330R R127 47K C127 470P L132 101T L131 15nH L133 R126 22R R138 47K C138 470P C131 33P R137 47K C137 470P C134 R115 680R C125 470P C129 N.U. C124 104P R125 0R 102P C133 27P 1K C256 103P C303 470P C201 103P C261 103P R262 MIX IN T261 2SC4215 O 5R L231 22nH C252 6P R242 1K R183 47K T181 DTC114EE T251 3SK229 R239 220R C250 103P out C911 103P L220 18nH C246 C238 C234 0.5P 0.5P 8P C242 4P L227 3T C247 4P R231 100R E911 10uF 0R L224 3T VC241 6P D220 HVC350B C233 470P R230 3K3 L219 39nH R229 0R R188 18K 47K R184 220K R228 220R C232 102P C231 102P C217 L213 0.3P 0.3P 3T C227 4P5 C221 3P5 VC226 6P L216 3T L214 3T R217 100K C228 470P 2 33K C447 820P C448 R449 332P C445 473P C451 103P C443 680P 33K 33K R444 10K U411A R433 LM4558 C441 473P R435 4K7 T402 DTA114EE R537 5CC R408 C410 103P C413 103P 5VOX R409 C416 R413 5K6 R414 C214 3P 100K 5T R405 22K 3 R431 30K R432 LM4558 C431 C405 102P 5 7 C404 273P C406 223P R401 E401 4.7uF (T.Y.) R402 1K8 C402 L402 104P C403 470P 101T MIC 6 1K5 223P R406 750K R434 C407 102P R404 18K R403 100K 51K R438 100R 470R C412 103P 0R C408 102P R436 1K8 C434 10P C422 104P R421 820R D422 1SS372 T421 MRF497 C438 470P R437 3K3 2 3 3 T401 DTA114EE R212 15P R213 E431 (T.Y.) 4.7uF U411B 2 1K8 C442 10K C531 103P 5V C537 R441 T431 2SK1824 3.58MHz 1M R442 332P R452 47K PDF created with pdfFactory Pro trial version www.pdffactory.com 100K T441 2SC4617 R443 1M8 8 C446 470P 33K D215 N.U. C216 470P 2 1 16 15 13 12 14 R535 100K 12 3K3 R453 22K R530 10K CR537 1 R451 C444 104P R446 R214 N.U. C212 5T 1 R448 C215 N.U. VC220 6P C222 470P E421 2.2uF (T.Y.) 1 1N4148 C534 470P R447 1M8 L212 3T D214 HVC350B 4 E451 2.2uF (T.Y.) D530 C533 470P 1 OSC out Vdd OSC in CLK sel 2 CLR N.C. TX out RX out TX Aout RX Aout 5 4 11 RX in TX in 6 N.C. N.C. 9 V bias Vss 10 7 8 3 C535 104P R197 150K APC/TUNE BATT 5T C401 103P T525 UMC4 C539 0.39R T191 DTC114EE C191 102P C223 D217 HVC350B T451 2SC4617 5T 0R R227 100K C243 470P C501 103P 120P R539 150K R223 R220 100K D531 1N4148 R540 100K 150K R193 NC R186 R278 C540 104P R194 NC C186 103P R187 39K 5T C527 150P R196 150K R192 0.39R R173 R226 220K T231 3SK229 R234 100K C263 13P C273 224P U512 FX/MX128 150K C198 NC APC/TUNE BATT 5T C230 470P L223 3T C237 10P I 470R C532 470P R198 2 BATT in E913 10uF R237 R238 1K R189 C188 104P R531 10K R527 22K 3 101P 1M 0.39R R172 C195 471P 1 C192 10K R182 C205 102P U911 5A 5M C913 103P 5CC 5V 5T C279 104P C254 103P FL253 29.250MHZ C262 2P R274 1K2 270nH C251 15P R254 470R C272 33P R185 5 R171 C171 103P C172 105P R195 150K APC/TUNE SB 2 3 1 MIX in OSC in 4 R261 680K 16 GND OSC out 5 C253 15P FL251 21.7MHz FL252 C257 21.7MHz 5P C270 15P 15 Vcc N-rec MIX out 14 Dec IF in RSSI IF out N-det 13 12 L252 0.56uH L253 CR272 21.250MHz C271 20P U161A LM2904V 7 C102 104P C912 471P R252 R251 1K 2.2K C264 104P R264 2.7K C185 470P 6 5T 5R C206 103P C282 104P U161B LM2904V C173 103P P-TX/RX Gnd I R181 E181 4.7uF (T.Y.) 10K T102 DTA114EE C103 470P R202 1K 5V 5R 5M O R102 4K7 R101 C202 470P 5CC P-TX/RX C283 104P C284 104P T103 2SB624 C101 104P 4K7 C255 5P FL261 C281 450K 102P C181 102P 5V 8 18K C153 NC C136 NC C126 N.U. T201 DTA114EE R256 C152 22P 4 C301 103P C151 1P 0R 5T C302 103P R301 C146 103P BATT 5T 5V 5V C145 104P R153 C141 NC 5C T301 DTA114EE 5C L143 8T T141 2SK3476 R135 0R C135 N.U. C143 103P C121 470P R121 22R D213 HSC277 10R C123 6P T121 2SC4988 T111 2SC3356 22nH T131 2SK3078 R124 150K C115 7P C142 1uF R136 47R R123 R113 33K C392 L122 15nH C122 470P L112 18nH C112 470P C128 102P L123 101T R114 22R BEEP R392 120K C113 103P R393 100R R391 680R 5T C144 470P L142 101T BATT 5C 9 10 11 12 P_TX 14 13 P_TX 5T L122 15nH C122 470P R128 120K C132 N.U. R122 330R R127 47K C127 470P L132 101T L131 15nH L133 R126 22R R138 47K C138 470P C131 33P R137 47K C137 470P C134 R115 680R 10R C123 6P T121 2SC4988 C125 470P C129 N.U. C124 104P R125 0R 102P C133 27P C146 103P C158 NC 0R C151 1P C152 22P C157 470P L157 220nH C156 R153 C141 NC R157 270R C154 15P C153 NC C155 27P 7P C126 N.U. L163 4T 3T C165 C162 C163 C164 470P 10P 9P 10P C166 2P C167 5P C168 3P C161 3P L211 4T C181 102P T103 2SB624 R102 4K7 R101 R181 U161B LM2904V C173 103P C185 470P U161A LM2904V R185 5 D211 HSC277 C211 2P R198 2 150K C198 NC 4 10K 3 C192 10K R182 R183 47K T181 DTC114EE R196 150K 101P 1M R184 220K 0.39R R172 C195 471P R192 R194 150K 150K T602 2SB624 0.39R R197 150K R193 NC C602 124P 0.39R R173 R601 10K C604 104P 18K C912 471P 47K C188 104P C205 102P U911 5A R188 R186 P-AMP NC C186 103P R187 39K C191 102P E651 100uF BATT in C911 103P R231 100R E911 10uF L220 18nH C238 C234 0.5P 8P VC241 6P C233 470P R230 3K3 L219 39nH R229 0R APC/TUNE BATT 5T C230 470P R228 220R T231 3SK229 C232 102P 0R T611 DTC114EE C231 102P C644 104P R223 C223 C217 L213 0R 0.3P 0.3P 3T R227 100K C227 4P5 R220 100K C221 3P5 VC226 6P L216 3T L214 3T R217 100K D217 HVC350B L212 3T C215 N.U. VC220 6P R214 N.U. D215 N.U. D214 HVC350B C228 470P C212 R212 15P 0R C643 100P BATT C904 103P Pout nc PwG Vcc PreG nc Phase Vin NF Ripple 1 2 3 4 5 C640 1uF R642 150R C903 103P C641 220P E642 10uF B C214 3P R213 C222 470P U641 TA7368 10 9 8 7 6 R644 10R R226 220K L223 3T C237 10P APC/TUNE BATT 5T R646 D C612 470P T191 DTC114EE 5T L901 101T C C902 102P C901 105P BAT111 BATTERY 100K C216 470P BATT 5T 5T SW411A 5T SB R442 R441 C441 33K 33K 473P U411A R433 LM4558 3 1 33K C445 473P C443 680P R444 10K R435 4K7 E431 (T.Y.) 4.7uF U411B R432 C431 LM4558 1K5 223P 2 1K8 C442 C405 102P 5 7 R406 750K R434 332P C404 273P C406 223P C407 102P R436 1K8 10P R413 5K6 R414 E401 4.7uF (T.Y.) BEEP BEEP MIC SW711 C711 103P ANKEY SW712 C422 104P R421 820R D422 1SS372 T421 MRF497 C438 470P R437 3K3 2 3 3 C416 101T C434 2 1 R438 100R R401 E421 2.2uF (T.Y.) C713 102P PTT SW713 ANKEY R715 470R C412 103P L402 104P C403 470P 1 C413 103P 5VOX R404 18K R403 100K R402 1K8 R450 10R 51K T431 2SK1824 DTA114EE C402 6 4 R446 R431 30K RD91 SP AFin R443 1M8 BEEP T441 2SC4617 8 C444 104P C408 102P R405 22K APC/TUNE SB P-AMP C401 103P C446 470P E641 1uF(T. Y.) R613 2K2 R612 2K2 R189 C642 104P C601 470P P-TX/RX R448 L164 1uH R171 C171 103P C172 105P R195 150K 1 7 C102 104P T102 DTA114EE C103 470P E181 4.7uF (T.Y.) 6 4K7 Gnd C169 1.5P R211 5V C201 103P L224 3T E ANT111 ANT BATT C101 104P C242 4P L162 4T D156 0R D212 HSC277 T201 DTA114EE out L161 HVU131 C136 NC C121 470P R121 22R 5T 5V R202 1K C145 104P L143 8T T141 2SK3476 R135 0R C135 N.U. C143 103P BATT T111 2SC3356 22nH T131 2SK3078 R124 150K C115 7P 33K R158 270R R136 47R R123 R113 C142 1uF 8 L112 18nH C112 470P C128 102P L123 101T R114 22R 5T C114 470P C144 470P L142 101T 0R B R716 4K7