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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Friday, 29 March 2019

SANYO 29FS51 NOBLEX 29 INCH CTV HOW TO ENTER SERVICE MODE – CIRCUIT DIAGRAM

SANYO 29FS51 NOBLEX 29 Inch CTV HOW TO ENTER SERVICE MODE – Circuit diagram

HOW TO ENTER SERVICE MODE – Power Supply [SMPS] section schematic _ Full Schematic - SANYO 29FS51 NOBLEX 29 Inch CTV
USED ICs _ LA42205-E _ QXXAVC634-N _ QXXAVD111-M
 
SERVICE MODE
Enter the Service Menu
While pressing the MENU button on the television, press the Number Key 2 on the remote control unit.
Service Adjustments:
Press the CHANNEL UP/DOWN button on the remote control handset to select the desired service menu item you want to adjust.
Use the VOLUME + / - button to adjust the data. The + or - button will increase or decrease the data sequentially.
Exit from the Service Menu
Press the MENU button to turn off the Service Menu display.
The data which is set in the service mode is stored into the memory IC automatically.
When IC802 (EEPROM) is replaced, IC201 (CPU) will automatically write the initial reference data into IC802 for basic TV operation.  However, the bus data should be checked and some bus data should be set up before attempting the service adjustments.
SMPS CIRCUIT DIAGRAM
FULL SCHEMATIC
CLICK ON THE PICTURES TO MAGNIFY