Question about Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

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NO PICTURE NO SOUND

IM GETTING 6 BLINKS ON THE LED AND i READ LOW b ON THE G1 BOARD I OPENED THE TV AND FOUND THE G1 BOARD BUT I DONT SEE A BATTERY ON IT

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  • SD Tech
    SD Tech May 11, 2010

    THE error code means one of the several voltages developed on this board are being pulled down. There is no battery on any board in this set.

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Hello :
The problem is not a battery, the problem is the low votage power supply , You have to measure all the voltages there mainly 12v , but you have to verify the mosfets and the Integarted circuit , did you do that?

Posted on May 27, 2010

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If blink 6 time,ic regulotor is broken,you must repleace ic 6400 ic mcz3001db

Posted on Sep 06, 2009

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SONY GRAND WEGA ERROR CODES AND WHAT THAY ARE


Lamp cover error 3 times - Lamp cover is not fastened securely - No picture/No sound

Fan error 4 times
- Fan1-4 Power is not supplied.(G2 board)
- Fan connector is not seated securely
- Fan caught wires or harnesses
- No picture/No sound

Temp error 4 times
- Internal temperature is too high
- IIC-E line connector is not seated properly
(WE:H3 board, WF/XS:H4 board)
- No picture/No sound

Lamp driver error 5 times - Lamp driver defect - No picture/No sound

Low B error 6 times -No "DD 6V " output (G1 board) - No picture/No sound

Audio error 7 times
- Short-circuit of Audio power supply line
(KD board, G1 board)
- Blowout of a fuse
(F4702,F4703,F4704 on KD board)
- IC failure
(IC4703,IC4708,IC4710 on KD board)
- No picture/No sound

D-OVP error 8 times
- Overvoltage of +3.3V or +2.5V
(A board, B board)
- No picture/No sound

ATSC-OVP error 10 times
-No "DTL MODULE 5V " output
(G1 board, G2 board)
- No picture/No sound

Lamp error LAMP-LED is ON. - Lamp is dead - No picture/No sound

on Apr 13, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

3 Answers

Won't turn on


Although the other response is in much better technical lingo, it sounds to me like the television had a high voltage arc which I have seen on quite a few of the sony big screens lately. Usually, it causes a part on the circuit board, (one of many that were listed on prev. solver's list) to fail. This causes a delimma for the repairman, because when they find the bad part and replace it, sometimes it will pop again causing repeat failure of boards and/or parts on the board. Sony is known for having bad tubes on their projection sets, and it can be a difficult repair even for a trained tech. I suggest calling a sony service center in your area, and get an accurate estimate before deciding if replacing the set is the best idea. Hope this is helpful input, Russmann.

Nov 15, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Sony KDF- 42WE655 Blinks 6 times No picture or sound


Thats the error code that indicates the ^v line from the G! board is missing. Replace the G1 board and that should solve your problem. You can get a replacemnet G1 board at the following link, leave them a email with your model number and which board you need and they will respond quickly, as they dont list all the boards they carry, and their boards come with free instalation instructions. Heres the link.
http://servicemanuals.vstore.ca/

Aug 25, 2008 | Televison & Video

1 Answer

Hi again


yes 3x its lamp cover no doubt. ballast supply will give different error on this unit. this should help hdtv man

Diagnostic Item
Description
Number of times
STANDBY or LAMP LED
lamp flashes
Probable Cause Detected Symptoms
Lamp cover error 3 times - Lamp cover is not fastened securely - No picture/No sound
Fan error 4 times
- Fan1-4 Power is not supplied.(G2 board)
- Fan connector is not seated securely
- Fan caught wires or harnesses
- No picture/No sound
Temp error 4 times
- Internal temperature is too high
- IIC-E line connector is not seated properly
(WE:H3 board, WF/XS:H4 board)
- No picture/No sound
Lamp driver error 5 times - Lamp driver defect - No picture/No sound
Low B error 6 times -No "DD 6V " output (G1 board) - No picture/No sound
Audio error 7 times
- Short-circuit of Audio power supply line
(KD board, G1 board)
- Blowout of a fuse
(F4702,F4703,F4704 on KD board)
- IC failure
(IC4703,IC4708,IC4710 on KD board)
- No picture/No sound
D-OVP error 8 times
- Overvoltage of +3.3V or +2.5V
(A board, B board)
- No picture/No sound
ATSC-OVP error 10 times
-No "DTL MODULE 5V " output
(G1 board, G2 board)
- No picture/No sound
Lamp error LAMP-LED is ON. - Lamp is dead - No picture/No sound

Jul 01, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Sony 36XBR800 Standby light flashes ...no picture sound


Hello,

For 6 blinks,Pls check following area.

Low HV Shutdown:
On the D Board.
Check IC8004/pin 7 should be 7.4v.
Check IC8006/pin 2 should be 2.5v if lower will trigger shutdown by causing pin 1 to turn on.
Check IC8006/pin 3 reference voltage 2.2v.
IC8006/pin 1 normally at 0v. If high
turns D5007 ON which turns the latch circuit Q6532,
Q6530, and Q6527 ON and turns the AC relay RY6501 OFF.

And NOTE: 6 blinks also can be Low B+ protection.

Unregulated 7.5 v from the power supply to 5v reg IC504 on the A Board. 5v to M Board Q2314

to CPU IC2300/pin 43. If 5v missing set will shutdown with 6 blinks.

I think this will help you to solve the issue.

Dont forget to Rate!!

Good Luck
Dals123

Apr 10, 2008 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

3 Answers

TV turned off by itself and now blinks red led 6 times


6 blinks means a low B error. Which is no DD 6volt output on G1 board . This will cause no picture and no sound. To fix this yourself you would need the manual to get the correct sequence to test and proper part to order. You can get a service manual for 10.99 at the following link and they will ask if you'd like it emailed to you after purchase. Here is the link,
http://servicemanuals.vstore.ca/

Feb 01, 2008 | Sony Grand WEGA KDF-55WF655 36" Rear...

1 Answer

Blinks twice pause blinks 4 times


SYMPTOMS
Dead or Shutdown symptoms.
RESOLUTION
Dead symptom reported to be caused by the following:
1. Dead.
Found Q601 & Q602 shorted, R615 open, and IC600 on the A Board were the cause of the symptom.

2. Dead.
Found D614, Zener diode, on B+ line was shorted.

3. Set shutdown and the standby LED blinks 3 then 5 times.
Found 200v line was low. Disconnected CN706 on the C Board and found 200v now
present on CN706/pin 7.
Found: IC702 (C board) shorted the 200 volt line.
HQ Comments: C541 on the A Board could become defective if the 200v line is shorted since
the polarity on the capacitor will become reversed. R553 fuse resistor could also be opened
on the A Board.

4. Error code of 4 blinks .
Dead set press power button you hear the relay and you see red led flash 3 times and stops? Has no HV or other action. Tech removed the back as no 200 volt supply, did unplug CN706 and now has 200volts. Tech did remove the IC702 and same it comes up so needs this IC.

5. Dead. 5 blinks then 3 blinks. Found shorted Damper diode D504. Q502 has a built in damper, as well.

6. The TV does not turn On and the LED flashers 9 times.
Found one side of R610 open on the Base of Q690 on the A board.

7. Dead, 9 flashes, Q606
Would not start when cold, has stand by 5 but relay never energize.
No response from front panel or remote controls.
9 blinks is not in service manual.

Found Q606 (Zero Det.), on the A Board, had no soldered on the collector
of the transistor causing an intermittent connection.
Soldered the collector of Q606 and set returned to operation.
HQ Comments: Also refer to E30968554.

8. Dead. 5 blinks or 3 blinks
Found on the A Board D611 in the Power Supply open, and Hor. Output Q502 shorted.

9. Found Power Supply components D611 shorted causing Q600, Q601, and R615
to fail on the A Board.

10. No picture or sound. Standby flashes.
Found Q512 (Pin Out) shorted. on the A Board.





11. Dead. No sound or picture.
Found the FBT and Q502 were shorted, and R615 open on the A Board.

12. Dead
No power, Stand by light flashes 4 times.
Found T604 and IC601, replaced.
Found D611 on the A Board was the cause of the symptom.

13. Dead.
Found D534 shorted on the A Board.

14. Shutdown 4 Blinks.
Replacing R595, OCP Latch Q532 on the A Board, fixed the set.
PN 1-247-891-00, 330K 1/4 watt.

15. Unit shuts down after 15 mins.
Immediate shutdown - sometimes it give a 3 blink, sometimes nothing.
Found R595 (330K) was open located in the Q532 OCP Latch circuit.
R595 P/N 124789100 330k 1/4w

16. Won't power up. LED Blinks 4 times, B+ is very low
B+ is at 49V, +15/-15 only coming up to about 1 volt.
Wth Hor Out disconnected B+ only comes up to 50v.
Found D611 on the A Board was the cause of the symptom.

17. Intermittently does not turn on
Found a intermittent C633 on pin # 3 of IC600.
C663 P/N 113647911 Film cap .001uf 100v



Billy

If you need the service manual contact me at:billyjones@fletchersite.com

Jan 27, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

3 Answers

Sony projection tv no power


What model is it? This could be a number of things, depending on the model of the tv

Nov 07, 2007 | Sony Grand WEGA KDF-55WF655 36" Rear...

1 Answer

Sony Grand WEGA KDF-60XS955


the g1 board is your issue. 6 blinks means there is no or low b+ coming from the g1 board.

Oct 08, 2007 | Sony Grand WEGA KDF-60XS955 60" Rear...

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