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 !

Tuesday 12 March 2019

SONY KDF-E55A20 - KDF-E60A20 REAR PROJECTION TV SERVICE MODE AND POWER SUPPLY CIRCUIT

SONY KDF-E55A20 - KDF-E60A20 REAR PROJECTION TV SERVICE MODE AND POWER SUPPLY CIRCUIT

REAR PROJECTION TV

SERVICE MODE AND POWER SUPPLY CIRCUIT 


SERVICE ADJUSTMENT MODE
To adjust various set features, use the Remote Commander to put the set into service mode to display the service menus.
1. TV must be in standby mode. (Power off).
2. Press the following buttons on the Remote Commander within a second of each other:
DISPLAY > Channel 5 > Volume + > POWER .
The first service menu (TV) displays.
3. To display the service menu that contains the category you want to adjust, press JUMP on the Remote Commander.
CHANGING SERVICE ADJUSTMENT MODE MEMORY
1. Access Service Adjustment Mode and select the service menu you want to adjust.
2. To change the category, press 2 or 5 on the Remote Commander.
Note: Pressing 2 or 5 only changes the categories within the service menu displayed. To change a category on one of the other service menus, press the JUMP button until the correct service menu is displayed.
3. To change the adjustment item, press 1 or 4 on the Remote Commander.
4. To change the data value, press 3 or 6 on the Remote Commander.
Note: To go back to the last saved data value, press 0 then ENTER on the Remote Commander to read the memory.
5. To write into memory, press MUTING then ENT on the Remote Commander.
6. To exit service mode, turn the power off.
MEMORY WRITE CONFIRMATION METHOD
1. After completing all adjustments turn the set off with the Remote Commander and WAIT for the fans to turn off before proceeding to the next step.
Note: It may take up to two minutes for the fans to stop.
Caution: To avoid over heating the lamp, do not unplug the set until the fans have stopped.
2. After the fans have stopped, unplug the set from the AC outlet, then plug the set back in the AC outlet.
3. To verify the changes repeat steps 2 through 5 from sections 2-2. Accessing the Service Adjustment Mode and 2-3. Changing Service Adjustment Mode Memory.
4. To exit service mode, turn the power off.
Note: To restore the User Controls and Channel Memory settings to the preset factory conditions, put the set into service mode (step 2 from 2-1. Accessing the Service Adjustment Mode), then press 8 then ENT on the Remote Commander. The set will restart and display the initial setup screen.
 POWER SUPPLY CIRCUIT 
CLICK ON THE IMAGE TO ZOOM IN

Posted By: FRANK at 10:44
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