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 !

Friday, 29 March 2019

SONY WEGA TRINITRON - KV DA322M66 – KV DA322M64 – RESET – SMPS AND DEFLECTION SCHEMATIC

SONY WEGA TRINITRON - KV DA322M66 – KV DA322M64 – RESET – SMPS and DEFLECTION SCHEMATIC

KV DA322M66 – KV DA322M64 – RESET – SMPS and DEFLECTION SCHEMATIC _ Picture Distortion Adjustments _ SONY Wega Trintron Flat TV
RESET PROCEDURE
If you faces some setting problem that cannot be solved, using the "RESET" function some items will be reset to its original setting or factory setting (shipping condition).
How to Operate
The following is to show on how to access to the "RESET" Function
User selection = press '
WEGA GATE' => select =>'SETTING' => go to 'SETUP' page => select 'FACTORY SETTINGS' => select 'YES'.
Sequential to the resetting operation, TV set would shut down once and automatically turn on again. The power-off duration is expected to be about 500msec. Initial Setup Menu is displayed.  As a result, some items will be reset to their initial conditions (shipment condition) whereas some others remain at the last user selection.
ITEMS THAT REMAIN AT THE LAST USER SELECTION
Program No., PICTURE POSITION (included PICTURE ROTATION and PICTURE V-POSITION), OSD Language, Fine tuning, TV System, Skip, Program label, Program sorting, Video label.
ADJUSTMENT TO A1 BOARD, AFTER MEMORY IC [IC003] REPLACEMENT
1 Enter to Service Mode. {With the unit on standby >  [DISPLAY] => 5 => [VOL(+)] => [POWER}
2
Press commander buttons 5 and - (Data Initialize), and 2 and - (Data Copy) to initialize the data.
3
Call each item number and check if the respective screen shows the normal picture.  In cases where items are not well adjusted, rectify the items with fine adjustment.  Write the data per each item number [Muting + 0)
4
Select item numbers “OPB00” (OP1), “OPB01” (OP2) and respectively set the bit per model with command buttons 3 and 6.
5
Press commander buttons 8 and - (Test Normal) to return to the data that was set on the shipment from the factory. (This will also cancel Service Mode.)
PICTURE DISTORTION ADJUSTMENTS
D-BOARD [Power Supply & Deflection] schematic (Circuit Diagram)
CLICK ON THE PICTURES TO ZOOM IN