REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday 13 March 2019

PANASONIC TC-20G12P - TC-29G12P - TC29G12PU SERVICE MODE AND SCHEMATIC DIAGRAM

PANASONIC TC-20G12P - TC-29G12P - TC29G12PU SERVICE MODE AND SCHEMATIC DIAGRAM


CRT TV

SERVICE MODE AND SCHEMATIC DIAGRAM 


SERVICE MODE
HOW TO ENTER INTO SERVICE MODE:
1. Switch to CATV and set the 124 CATV c h a n n e l .
2 . Adjust minimum volume with t e Vol(--) button.
3. Adjust SLEEP function to 30 and press the button Vol(--) on the TV panel.
4. To alter among CHQ’s (B0→C0→S0→M0), press POWER.
5. To alter among DAC’s (B0→B1... and C0→C1...), press CH(+) or CH(--) and to alter the values press VOL(+) or Vol(--).
6. To get access to contents of directions of the memory address shows bellow, set DAC “ S 0 “ and press MUTE button on the remote control, for about 3 sec.
TO EXIT SERVICE MODE:
1. Press ACTION and POWER button simultaneously, on the TV panel , for about 3 sec.
RESET: Press simultaneously ACTION and POWER button for about 5 sec. All programming done (clock, color, color system through channels or signal ) will be cover for the original factory adjustments.
INITIAL DATA RECORDING IN THE MEMORY (EEPROM)
1. Initial data must be recording before IC memory installation in the circuit board .
2 . The data of A0 address , is individual for each model . The data of A2 and A4 are common to all models.
SCHEMATIC DIAGRAM 
CLICK ON THE IMAGE TO ZOOM IN
Posted By: FRANK at 02:23
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