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!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Tuesday 12 February 2019

SONY - KDS 50A2000_50A2010_55A2000_60A2000_60A2010_SELF DIAGNOSIS _ DISASSEMBLE PROCESS

SONY - KDS 50A2000_50A2010_55A2000_60A2000_60A2010_Self Diagnosis _ Disassemble Process



DIAGNOSIS ITEM AND PREDICTION OF MALFUNCTION LOCATION.

  • When a malfunction occurs, the Power Indicator only blinks for one of the following diagnosis items.  In case of two or more malfunctions, the item which first occurred blinks.  If the malfunction occurred simultaneously, the item with lower blink count blinks first.
  • The screen displays the result regarding all the diagnosis items listed below.  The display "0" means that no malfunction occurred.
Diagnosis item
Number of LED blinks
Probable Cause Location
Defected Symptoms
Temp.over
2
The periphery of lamp heats abnormally.
No picture /No sound.
Lamp cover
3
Lamp cover is not attached securely.
No picture / No sound.
Fan error
4
  • Fan 1, 3, 4 Power is not supplied.
  • Fan connector is not attached securely.





No picture / No sound.
Lamp driver
5
Lamp driver is faulty
No picture / No sound.
Power error
6
D5V is not supplied.
No picture / No sound.
Audio protection.
7
Speaker line shorted.
No picture / No sound
Popwer Over Voltage Protection [OVP]
8

7V is over voltage.
No picture /No sound.
Device error
9
Temperature sensors, Bus decoder Ics,{IC2000, 3150, 3200, 8804}
No picture.
Lamp error
LAMP-LED flashes.
Lamp for the light source burned out.
No picture / No sound.

DISASSEMBLY PROCEDURE

  • Pull the claws to remove the lamp cover.
  • Remove 7 screws to open back cover.

Chassis Block

  • Connectors




ATSC SHIELD
  • Remove screws [marked in red] and connector ]marked green].
  • Remove four screws, one connector & one F-cable.
  • Disconnect 2 connectors.
  • Remove 4 screws
  • Remove 4 screws.
  • Be careful about the connector connected between QM board and A1 board.

MAIN SHIELD REMOVAL
  • Remove 9 screws and 7 connectors to remove the main shield.
  • A1, B1 S1 Board
LAMP FAN UNIT





POWER BLOCK


SCIROCCO FAN


UNIT COVER ASSEMBLY


OPTIC BLOCK ASS'Y




SCREEN FRAME BLOCK ASS'Y


FRONT TERMINAL BRACKET
  • Remove 7 claws of front terminal bracket inserting the pin 5 to 10mm to the 7 square holes on the edge of front terminal bracket.  At this time, pay attention not to scratch the front terminal bracket.


MIRROR COVER BLOCK


Posted By: FRANK at 02:31
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