August 2014
Transcription
August 2014
New! Slot Tech Training now available in South Dakota, Louisiana Slot Tech Magazine Page 3-Editorial Page 4-Aristocrat Topper Schematic Diagram, PCB Layout and Parts List Page 8-MK7 UNI-400-1 Power Supply ICE2B265G Page 9-Regional Slot Tech Training Page 12-Slot Tech Training at Lode Star Casino Page 14-IGT Communications Board Test Fixture Page 20-HAKKO Induction Soldering Unit Page 22-Subscriptions D Randy Fromm ear Friends of Slot Tech Magazine, As a follow-up to last month’s article on the old, Aristocrat topper, Glenn Allen has provided the data that I was unable to publish at press time, namely a schematic diagram, board layout and parts list. See page four. Thanks, Glenn. A recent poll on the Slot Tech Forum was overwhelmingly in favor of a series of articles on the Integrated Circuits we use in gaming. Since we’ve been covering Aristocrat power supplies lately, we’ll start with the ICE2B265G as used in the MK7 UNI400-1 power supply. Turn to page eight. Herschel Peeler has put together a nifty test fixture for IGT Comm boards. It’s educational, even if you never build the thing. Turn to page 14. See you at the casino. Publisher-Slot Tech Magazine Slot Tech Magazine is an official publication of the Randy Fromm's Slot Tech Magazine Editor Randy Fromm Technical Writers Glenn Allen, James Borg, Jason Czito, Vic Fortenbach, Henry Kollar, Chuck Lentine, Kevin Noble, Pat Porath Slot Tech Magazine is published monthly by Slot Tech Magazine 401 W. Lexington #777 El Cajon, CA 92022 tel.619.838.7111 fax.619.315.0410 e-mail [email protected] Visit the website at slot-techs.com SUBSCRIPTIONS Domestic (North America) 1 year - $80.00 2 years - $140.00 International 1 year - $160.00 2 years - $300.00 Subscribe online at slot-techs.com Copyright 2014 under the Universal Copyright Convention. All rights reserved. Regional Slot Tech Classes Shreveport, LA August 25-28, 2014 Aruba September 22-25, 2014 Pinetop, AZ October 21-24, 2014 Classes open to all slot techs Slot Tech Feature Article Aristocrat Topper Schematic Diagram, PCB Layout and Parts List By Glenn Allen Editor’s Note: This is a followup to the Aristo Topper repair article we ran last month. Thanks, Glenn Page 4 C1 .1uf 50V C2 .1uf 100V C3 .1uf 100V C4 .1uf 100V C5 100uf 16V C6 1uf 50V C7 .01uf 50V C8 .1uf C9 470uf 35V C10 .1uf D1 D2 D3 D4 1N4001 1N4001 1N4001 1N4001 R1 1K0 1/4W R2 470R R3 22K R4 732R R5 732R R6 732R R7 732R R8 243R R9 243R R10 243R R11 243R R12 0 R13 0 R14 0 R15 0 LED Chaser Parts List Slot Tech Magazine U1 U2 U3 U4 NE555 CD4017 SN75451B SN75451B VR1 TO92 MC78L05ACP VR2 TO220 LM317 VR3 TO220 LM317 VR4 TO220 LM317 VR5 TO220 LM317 DS1 Red LED F12A 250 FAST ACTING FUSE August 2014 July 2014 Slot Tech Magazine Page 5 Notes: This is the LED chaser driver PCB Page 6 Slot Tech Magazine August 2014 July 2014 Slot Tech Magazine Page 7 Slot Tech Feature Article MK7 UNI-400-1 Power Supply ICE2B265G By Herschel Peeler T he ICE2B265 is obsolete so troubleshooting this guy closely is important. DigiKey and Mouser list it but do not carry stock, listing it as obsolete. There are some Chinese distributors that still have stock. This is the switching regulator for the 24 Volt side of the power supply. It only has a few pins to look at so troubleshooting isn’t difficult. The 2B265 comes in a variety of packages so if you are purchasing one, be careful of what you buy. Pinout (DIP version) 1 – Soft Start. It may just have a capacitor to ground, 100 nF is typical. 2 – Feedback. This is usually an optoisolator from the output circuit that monitors the output voltage. As the output voltage goes up, this voltage goes down. It should read about 1.5 V DC with a meter but it is best read Page 8 with a ‘scope to be a signal around a 0.8 Volts level. 3 – Current Sense. Source pin of the output MOSFET. This usually has a low value resistor to ground, about 1 Ohm is typical. DC voltage measured will be about 1 Volt but not being a steady DC, level readings may differ. 4 – Drain output 5 – Drain output. These should be a high DC voltage if you read it with a meter on DC. You may get some reading with a meter on AC but unless you have a really good meter that can read AC at 66 KHz the actual reading may not be meaningful. Best read with a scope. CAREFULLY. 6 – (not used, may not even be on the chip) 7 – Vcc. To start up, the 2B265 this needs to be above 13.5 Volts but once started, it can be lower. Below eight volts it should drop out. It will tolerate about 20 Volts but at about 16 Volts, it senses it as an overvoltage Vcc and shuts down the PWM. Typically reads around 12 Volts. 8 – Ground (AC line referenced) Slot Tech Magazine There are two schematics. Design 191 is a simplified variation of the UNI-400 24 Volt circuit for an example of the 2B265 at work. Design 192 shows a detail of the inputs and outputs for troubleshooting purposes. Design 191 SETEC has added a circuit (Q9 and D15). Apparently the Vcc overvoltage level wasn’t low enough. When Vcc gets to about 15 Volts, Q9 turns on pulling the SoftStart line high. You should not see a voltage here higher than 5.6 Volts. We will cover that in following paragraphs. Other than that, operation is right out of the data sheet for the ICE2B265. You can download that from most data sheet sources. My favorite is www.alldatasheet.com. August 2014 NEW PROGRAM Regional Slot Tech Training Attend or Sponsor a Class Near You! Classes Available: Shreveport, LA August 25-28 2014 Eldorado Casino Aruba September 22-25 2014 Aruba Marriott Resort & Stellaris Casino Pinetop, AZ October 21-24 2014 HON-DAH Resort Casino This is a “fast-track” class for slot techs who want to learn the quick and easy way to fix monitors and power supplies without having to learn a lot of electronic theory or mathematics. If you are interested in sponsoring a regional class at your property, please contact Randy Fromm for details. S ince 2001, Slot Tech Magazine has been holding slot tech training classes at casinos across the USA. These classes have mostly been held at larger properties with a dozen or more slot techs from their own slot department attending the class. In order to serve our smaller cainos (with, perhaps, just a few techs) we are now holding regional classes that are open to all slot techs that wish to attend. This is the full, four-day class that covers power supply repair and LCD monitor repair, down to the component level. To Enroll: Download the enrollment form at slot-techs.com Class Schedule 9:00am-4pm Daily Day 1-Beginning Electronics for Slot Machine Technicians This segment assumes that you have no previous electronics training and takes you through a simple, NO MATH look at electronic components, electronic circuits, schematic diagrams and more! Day 3-Morning Session-Soldering Good soldering technique takes practice but there are some tricks that can really help speed things along. During this segment, each student will be provided with their own soldering supplies and a fun project kit they will assemble. This equipment will be theirs to keep. Using a Digital Multimeter The DMM is the single most important piece of test equipment you can use. Day 3-Afternoon Session-Power Supplies (continues Thursday) This module covers all types of power supplies, including linear power supplies and the Switched-Mode Power Supply (SMPS) found in virtually everything in a modern casino. Electronic Components All of the individual components used in gaming machines are introduced. Students learn how to test them for proper operation. Day 2-Diodes, Transistors & Other Semiconductors Hands-on Transistor Testing Lab This part of the school takes a look at all of the different types of semiconductors commonly seen in gaming machines. We'll take a look at the operation of each component, along with testing procedures to determine if the part is good or bad. July 2014 Day 4-Afternoon Session-LCD Monitor Repair LCD Monitor repair is generally pretty easy thanks to their modular design. This segment covers the theory of operation of LCD monitors. There will be a presentation on component-level repair techniques, CCFL testing and replacement and using LED strips as backlights. Includes free CCFL tester! Slot Tech Magazine Cost of the Program Tuition is $795/person Includes: Digital Multimeter Soldering iron, tools and soldering supplies Sample components Soldering Instruction Kit Textbook Students are responsible for their own meals and lodging. If you’re interested, please contact Randy Fromm right away. It’s first-come, first-served and there is a very limited number of places available in each class. Randy Fromm Slot Tech Magazine 401 W. Lexington Ave. #777 El Cajon, CA 92022 619.838.7111 You can fax a PO to 619.315.0410 and we’ll invoice you. Be sure to include the student’s name. Page 9 Vcc obtains its start up from the +400 Volt line. When it reaches approximately 100 Volts, Vcc becomes high enough for the 2B265 to start up so most any good +400 line voltage should get this circuit started. Once the 2B265 is going, one secondary of T3 provides Vcc for the chip. The Drain output should start running at about 66 KHz. The Current Sense line has a low resistance to ground. Current flowing through this resistor indicates the level of current through the output. The UNI-400 has two resistors in parallel (2.2 Ohm and 2.7 Ohm, giving about 1.2 Ohms). Feedback Input This is usually the output of an optoisolator whose LED is monitoring the 24 Volt line (or whatever output the power supply has). As the 24 V line goes up to 24 V, the LED starts conducting and the voltage at the Feedback input decreases. Again, this voltage changes during operation but with a DC meter you should see about one volt here. Design 192 The SoftStart line has an internal resistor that charges up the capacitor on the line. A 5.6 Volt Zener on this line limits the Voltage so you should not see more than 5.6 Volts on this pin. As long as Vcc is below 15 Volts, Q9 should be off and doing nothing to influence the circuit. If the voltage on this pin is always low, C59 may be bad or the 2B265 is bad. About five volts is typical as I remember. On power up, when this voltage gets above 4.0 Volts, the 2B265 should start up. Above 5.3 Volts indicates an error and the 2B265 shuts down. Inside the 2B265 there is a transistor tied to this line to pull it low on internal errors. Over temp or other errors pull this line low, so 0 V here may indicate a bad 2B265. Feedback This should be a changing DC level riding on about a 0.8 Volt level at 66 KHz, following the output of the power supply. As the output voltage decreases, the phototransistor decreases conduction and the result should be a wider output pulse, raising the output voltage back up. If the output voltage is too low the voltage on this pin may rise above 4.8 Volts and trigger an error, shutting down the 2B265 so you should not see a voltage here higher than 4.8 Volts. Happy (and careful) troubleshooting. This circuit can bite. - Herschel Peeler [email protected] Design 191 SoftStart This is normally just a capacitor to ground that delays power on by a little while. Page 10 Slot Tech Magazine August 2014 Design 192 July 2014 Slot Tech Magazine Page 11 Slot Tech Event-Slot Tech Class at Lode Star Casino T his was the first of my new, regional slot tech classes. It was held July 15-18, 2014 at the Lode Star Casino in Ft. Thompson, SD. This was my “normal,” fourday class that is geared for slot techs with no previous electronics training or experience. We cover all the knowledge and skills required for the vast majority of the common repairs we face in the casino industry. Beginning with a “no-math” Nolan Brave Heart Bull and Randy Fromm. Is it weird to publish a picture of yourself in your own magazine? I suppose if it’s OK with Oprah . . . Below: I just had to try out the “panorama” setting on my new Samsung Galaxy phone. This is one of our “hands-on” labs. Page 12 (l-r) Forrest American Horse, Jeff Millard, Tashina McBride, Nolan Brave Heart Bull, Doreece Kennedy, Michael Scott, Rosita Medicine Crow and Aimee Ziegler. Slot Tech Magazine August 2014 o dge and skills refor the vast majority ommon repairs we the casino industry. ing with a “no-math” look at basic electronics, students progressed through the use of the digital multimeter and capacitor ESR meter to test all of the discrete components. Next came soldering. Students learned about component removal and replacement and had the opportunity to build a soldering ina McBride, Nolan Brave practice kit that used all of the compoRosita Medicine Crow and nents we just learned about. Next, it was on to power supplies and LCD monitors July 2014 August 2014 where we took a look at how these units operate and, more importantly, how they fail and what to look for when performing repairs. I demonstrated LED replacements for CCFL backlights. If you are interested in sponsoring a class at your property, please contact Randy Fromm to discuss your requirements.-STM Slot Tech Magazine Page 13 Slot Tech Feature Article IGT Communications Board Test Fixture By Herschel Peeler T his is the four, five or six channel Comm Board in the distribution box of 960 series games, both Game King and S-2000. It comes in many variations and part numbers. This test fixture tests all of them I have found so far. The board has the possibility of three or four wired channels and one or two fiber optic channels. The board can be powered from any of three sources. The test fixture covers all of them. No single game uses all the possibilities so testing the board in one game will not necessarily prove it will work in another game. The test fixture and this procedure are also educational if you are vague on RS-232, RS-485, current loops or fiber optic systems. supply in the Distribution box through a 2-pin power connector. Some more recent designs have been powered by +13 Volts coming in over the 26-pin ribbon cable. The test fixture has all possibilities here covered. The Board in General There are many variations and part numbers for this board so schematics will vary, but we can see some similarities in designs. The game interface is +13 V and ground digital signals so switch inputs are simply switches from +13 Volt or ground. 4504 Voltage Level Converters change these to +5 and ground for the rest of the circuitry. The RS485 interface is usually an LTC491 or MAX491. The RS-232 interface chips provide their own +V and –V for the RS32 line. The boards that run off of AC have an on-board regulator that drops the rectified voltage (“+13 V” line on the board) down to +5 V. No parts on these boards are proprietary. All parts are available over-thecounter. Channels The 960-series games have eight communication channels (1 through 8). Up to six of these come into the Communications Board as channels “a” through “h”. Power Older boards were powered by AC from a transformer in the distribution box that put out about 15 Volts, center tapped, through a 3pin connector. The next generation was powered by five Volts from a power Page 14 Slot Tech Magazine August 2014 Channel “a” is usually primary SAS and is an RS-485 port with MODEM-type handshaking (DTR and DCD). In boards with dge and skills tworefiber optic ports, “a” is the second fiber for the vastoptic majority port. Channel “c” is an RS-232 port ommon repairs we with flow control (RTS and CTS). Channel is an optional second RS-232 port not the casino “f” industry. used on most boards. Channel “g” is the ing with a “no-math” progressive (current loop) port. Channel “h” is the standard fiber optic port. Each will be covered in more detail. o The game has a Communications Analyzer built into the diagnostics that is very useful for troubleshooting. The best application of this requires a loopback on the channel you are testing. This allows the output of that channel to talk to itself testing all of the game circuitry. These loopbacks are required for the test fixture. The Test Fixture The test fixture is not complicated. It is basically switches and lights that simulate the game inputs and outputs through the 26-pin ribbon cable. Channel 1 Referred to as Channel “a” in the board this is usually Channel 1 of the game and is primary SAS. This is an RS-485 port on most boards. On boards with a second fiber optic port, this second port is “a.” On the RS-485 configuration, we have Direction Control (DIR), Data (TxDa and RxDa) and MODEM Control (DTR and DCD). TxDa is Transmit Data on Channel “a” which is data coming from the game MPU out to some system. This goes into the external system as its RxDa. RxDa is Receive Data on Channel “a” which is data coming into the game from some external system. This comes from the external system’s TxDa output. DTR is Data Terminal Ready. This is a signal ina McBride, Nolan Brave schematics, Rosita Medicine Crow and July 2014 August 2014 ADVERTISEMENT - Power Supply Repair generated by the MPU, telling an external system it is on-line and ready for operation. This eventually goes to the external system as a DCD signal. DCD is Data Carrier Detected which means the external system is alive and on-line. This comes from the external system’s DTR output so testing this channel requires a loopback that ties TxDa to RxDa and DTR to DCD, allowing the port to talk to itself. RS-485 is a differential signal standard so there is a “+” and a “-“ side to each signal. Setting a switch sends the signal. The result coming back lights an LED. This is the 10-pin connector, J81. Slot Tech Magazine Page 15 On some designs with a second fiber optic port, Channel 1 may be this second fiber optic port. Channel 3 Referred to as Channel “c” in the schematics, this is an RS-232 port with Flow Control, RTS and CTS. TxDc and RxDc are the transmit and receive data. RTS is Request to Send. This output is telling the external system the game has information ready to send. CTS is Clear to Send. This is a signal from the external system telling the game it is okay to send the information. In a system switch there may only be one processor but many communication channels. Since the processor can only talk to one channel at a time, it organizes itself using these RTS and CTS Page 16 handshaking signals. This is the 5-pin connector, J82. Channel 6 Referred to as Channel “f” in the schematics, this is an optional second RS-232 port. No handshaking signals are provided. Flow Control is accomplished by ASCII control codes (X-ON and X-OFF). Only a simple loopback between TxDf and RxDf is required. This is a 7-pin connector, J5, not found on all boards. Channel 7 Referred to as Channel “g” in the schematics, this is the typical Progressive output to older progressive sign systems. This is a current loop design. The inputs and outputs are opto-isolated. Again Prog Out is simply tied to Prog In Slot Tech Magazine but we also need to supply power to the external aide of these circuits. This is the 6-pin connector on the board, J85. Channel 8 Referred to as Channel “h,” we have TxDh and RxDh. This is typically connected to the fiber optic Data Collection System, WAP ((Wide Area Progressive), CVT or location safe system. The loopback required is a short section of fiber optic cable. On many single fiber optic port designs there is a second fiber optic output that echoes what is transmitted on the other channel. Worth noting here, there is a jumper “E1” that disables transmitting on the fiber optic channel while something is being received. This jumper must be removed for the August 2014 loopback test. An LED on the board lights when data is being sent out the fiber optic port. dge and skills refor the vastSome majority boards have no fiber optic connecommon repairs we tors at all. The board LED still lights but is nowhere for the signal to go and the casino there industry. no signal ing with a “no-math” to be received. o Testing the Board Connect the loopbacks as required for the board. Connect the appropriate power plug and the 26-pin ribbon cable. Power on. The LED on the board should light. RESET The typical schematic of the board has been broken down into sections to make troubleshooting easier. Some parts common to different sections are duplicated in the schematics. Turning on RESET should turn off the board LED. The board has two sources for a Reset signal. There is the input coming from the switch through the ribbon cable and a “+13 V Failure” circuit. On some boards, a jumper is required to provide this +13 V power to this circuit. Consult the schematic for the specific board you are working on. The circuit shown is only an example and may not apply to your specific board. Channel 1 Testing Enabling the DIR input enables both RS485 interface chips and the RxDa LED ina McBride, Nolan Brave Rosita Medicine Crow and July 2014 August 2014 Slot Tech Magazine Page 17 should follow the TxDa switch. The DCD LED should follow the DTR switch. Disabling DIR should kill both LEDs. This RS485 port is designed to drive a long distance but may only go to a cable in your SAS system. Whatever is connected to channel 1 in your casino goes here. This is set up in configuring your comm channel SAS menu. This is usually primary SAS but doesn’t always have to be. Channel 3 Testing Channel 3 should be defeated by reset. The RS232 interface generates its own +V and –V for the RS232 line. RxDc should follow the TxDc switch. The CTS LED should follow the RTS switch. The +V and –V the interface chip generates can vary from six Volts to Page 18 nine Volts. This is only intended to drive a short distance. This is often Secondary SAS if you use it. Channel 6 Testing IF USED, the RxDf LED should follow the TxDf switch. Channel 7 Testing This is the old style progressive sign output. Most modern systems use a serial port for the progressive and you may not even use this port. Being a current loop design, voltage readings can be misleading. It is current flow that counts more than voltage level. The chip used is popularly an ILD2, dual opto-isolator. On the transmit side, the cathode of the LED should be about +5 or +13 (which ever is used on Slot Tech Magazine the anode, it varies with board design) when off and drop about 1.2 volts from that when on. With the loopback connected, the output of the opto-isolator, pin 6 should go to about 0.6 volts when on (limited by Emitter-Base junction of the transistor) and about 1.5 V when off. When off, the output tries to go high. How high is limited by the LED on the receive side, so we will not see a +13 V at the output unless the Prog Tx line is open. If functioning properly, the P Rx LED should follow the P Tx switch. Channel 8 Testing Remove the jumper in the fiber optic circuit (usually E1) for loopback testing, if you use it. Reset should defeat Channel 8 operation, otherwise the RxDh LED August 2014 o dge and skills refor the vast majority ommon repairs we the casino industry. ing with a “no-math” should follow the TxDh switch. If no fiber optic jacks are used, the LED should still follow the TxDh switch but the output goes nowhere and there is no input for the RxDh LED. - Herschel Peeler [email protected] CHEAP ADVERTISING To advertise in Slot Tech Magazine, contact Randy Fromm at 619.838.7111 or email [email protected] ina McBride, Nolan Brave Rosita Medicine Crow and July 2014 August 2014 Slot Tech Magazine Page 19 Page 20 Slot Tech Magazine August 2014 The new HAKKO FX-100 Soldering Station brings induction heating soldering technology to an even higher performance level. It is a dge and skills resmall, compact, and very simple to soldering station that uses an for the vastuse majority advanced ommon repairs wesystem design to optimize the output power to the soldering iron the casino industry. tip to there is no loss of power in the ing with a “no-math” form of heat within the soldering station. The new T31 Series soldering iron tips use a highly precise manufacturing and process control method that allows for a more repeatable tip temperature between not only the same tip shape but even between tips of different shapes within the same series. o The HAKKO FX-100 Soldering Station includes an Auto Power Assist feature allowing it to recover faster and have a higher throughput than other soldering stations, and the BOOST recovery mode allows for a bit more power when needed when working on solder joints attached to ground. The T31 Series tips are constructed with iron plating similar to that of the HAKKO T15 Series tips, allowing FX100 users to experience HAKKO’s renowned tip life for themselves but make use of new induction heaters that are precisely tuned and highly responsive with excellent power ina McBride, Nolan Brave output. Rosita Medicine Crow and Attention Slot Manager! Four-Day Classes With Randy Fromm -Power Supply Repair -LCD Monitor Repair No previous electronics knowledge required. It’s easy and fun to fix casino electronics down to the component level. Call Randy at 619.838.7111 to discuss your needs. The HAKKO FX-100 Soldering Station also has the lowest EMI levels of all induction heating soldering stations and meets all applicable standards, especially for those working on extremely sensitive medical and aerospace applications. Also included are – Auto Sleep and Auto Power Off features, Process indicator recorders for tip heater loads and tip running time, user programmable profiles to store useful information about the station setup such as Asset ID, Operator, and Solder information, and a Tip Change alarm. For more information please visit us at www.HakkoUSA.com American Hakko Products, Inc. 28920 Avenue Williams. Valencia, CA 91355 Tel: (661) 294-0090 Fax: (661) 294-0096 www.HakkoUSA.com July 2014 August 2014 Slot Tech Magazine Page 21 Subscriptions & Back Issues Why back issues of Slot Tech Magazine are important to own . . . S lot Tech Magazine is strictly technical. As such, the magazine's contents are not time critical. The repair information and technical data contained in past issues is just as valid today as it was the day it was published. Additionally, current and future articles more-or-less assume that readers are already familiar with what has been covered in past issues. This editorial policy assures that Slot Tech Magazine's contributing writers are not limited to "writing down" to the level of a novice technician but are free to continue to produce the most comprehensive technical articles in the gaming industry. Randy Fromm's Slot Tech Magazine is published monthly by: Slot Tech Magazine 401 W. Lexington #777 El Cajon, CA 92022 tel.619.838.7111 fax.619.315.0410 e-mail [email protected] Back Issues Printed back issues are available for onlysix months from the date of publication. All single issues of Slot Tech Magazine are $10.00/ea. For further details on the contents of each issue, please refer to the website at slot-techs.com. To order, fax a PO or e-mail a note listing the issues you need. Subscription rates: Domestic (USA & Canada) 1 year - $80.00 2 years - $140.00 International 1 year - $160.00 2 years - $300.00 Complete archive (2001 to present) available online. Visit slot-techs.com for details. Invoice me! PO Number________________________ Company Name ______________________________________________________ Contact _____________________________________________________________ Address ____________________________________________________________ Address ____________________________________________________________ City _________________________ State/Prov. ___________________________ Country ______________________ Zip/Postal Code _______________________ Telephone ____________________ E-mail ________________________ [ [ [ [ ] 1 year subscription, domestic ] 1 year subscription, international ] 2 year subscription, domestic ] 2 year subscription, international Type of card: [ ] American Express [ ] Discover [ ] MasterCard [ ] Visa Account Number: ________________________ Expiration Date: ________________________ “I can help you bring down the cost of casino electronics repairs” Randy Fromm “OK. You asked and I listened. My new tech class eliminates obsolete CRT monitor repair and the associated monitor repair lab. In just four or five days, your slot techs can learn to repair Power Supplies, LCD Monitors, Ticket Printers, Bill Validators and more. It’s easy and it’s fun.“- Randy Fromm tel.619.838.7111 fax.619.315.0410