Question about Sony Grand WEGA KDP-57WS655 57" Rear Projection HDTV

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Sony model # KDP-57WS655 52" tv. standby light flushing 9 times. people says change diodes D6116 and D6301. one say on G board and another on D board. I don't even know where are these boards at. I know I can replace them but need some more detailed guidence. Thanks guys.

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Both diodes are on G board (power supply) and its shown in below picture...

sony model # KDP-57WS655 52

Posted on Dec 17, 2008

  • Shahid Electronics
    Shahid Electronics Dec 27, 2008

    Solution provided deserve 4 blue diamonds rating...what do you think?

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2 Answers

Red lite blinks tv will not power up. Sony kdp-51ws655


You need to count the number of blinks between the pause. Most common is 9 blinks. Also- after you press POWER, do you hear a "click" or not? If no click and 9 blinks, you probably have a "zero detect circuit failure" and have two options:
.
(1) Replace the "G" board (part # A1054157A) or have it repaired (they repair it on eBay for about $40. You ship them the bad board and they repair it and return it). A new board costs about $80 on eBay without having to send them your (core) bad board. Sometimes they are not available and you must send your board in for repair. this is MUCH less expensive than SEARS, which charges several hundred dollars.
.
(2) Repair the board yourself- by replacing the two diodes on the "G" Board - (D6301 which is on top- by the small transformer) and (D6116 which is an SMT component on the bottom of the board- it takes VERY steady hands and a good solder iron). The parts should cost less than $25 and are available on eBay by searching for "sony a1054157a".
.


red-lite-blinks-tv-will-4ojfzua2t5qdonett1db0kz0-1-0.jpg
Location of the "G" board. Unplug the TV set, leave it for 10 hours (to discharge the capacitors). Remove the brown back, carefully unplug the cables, unscrew the two mount screws, and unclip the front retaining tab.

red-lite-blinks-tv-will-4ojfzua2t5qdonett1db0kz0-1-2.jpg
This is the MOST LIKELY failed component, D6301. It is a diode and MUST be unsoldered and replaced. Make sure you know that diodes have a SPECIFIC way they must be installed. Note where the stripe is on the component. You can locate a "good" diode by searching on eBay for "sony a1054157a". You should see a parts kit for about $25, give or take.

red-lite-blinks-tv-will-4ojfzua2t5qdonett1db0kz0-1-5.jpg
One other possible culprit is the D6116 diode. This is a surface mounted component (SMT) and will require a steady hand and a very fine-tipped solder iron. I would replace the D6301 FIRST and re-connect the "G" Board to see if that is the ONLY culprit. If you STILL have the same problem, then replace D6116.

Oct 02, 2010 | Sony Grand WEGA KDP-51WS655 51" Rear...

2 Answers

Hello, I have a problem with my sony rear projection tv. When I try to turn it on the standby lights blink but it odes not turn on. I turned it on using display 5 vol- power and it did turn on and know it...


You need to count the number of blinks between the pause. Most common is 9 blinks. Also- after you press POWER, do you hear a "click" or not? If no click and 9 blinks, you probably have a "zero cross failure" and have two options:

(1) Replace the "G" board (part # A1054157A) or have it repaired (they repair it on eBay for about $40. You ship them the bad board and they either repair and return or ship you a different repaired board) A new board costs about $80- without having to send them your board.

(2) Repair the board yourself- by replacing the two diodes on the "G" Board - (D6301 which is on top- by the small transformer) and (D116 which is an SMT component on the bottom of the board- it takes VERY steady hands and a good solder iron). The parts should cost less than $25 and are available on eBay by searching for "sony a1054157a".
.
problem-4ojfzua2t5qdonett1db0kz0-5-0.jpg
Location of "G" Board on a Sony Rear Projection TV (KDP-51WS655)
problem-4ojfzua2t5qdonett1db0kz0-5-2.jpg Location of "G" Board on a Sony Rear Projection TV (KDP-51WS655)

problem-4ojfzua2t5qdonett1db0kz0-5-5.jpg Component D6301 location (Sony KDP-51WS55)

problem-4ojfzua2t5qdonett1db0kz0-5-9.jpg Component D6116 location (Sony KDP-51WS55)

Sep 11, 2010 | Sony Grand WEGA KDP-51WS655 51" Rear...

1 Answer

MY TV FALSHES 10 TIMES THEN 9 TIMES ALL THE TIME


you need to replace D6301 and D6116. for a temp fix and I STRESS this will only fix this one time temporarily resolder both sides of these diodes on the G board,

Aug 03, 2009 | Sony Grand WEGA KDP-57WS655 57" Rear...

1 Answer

Tv wont turn on


You have a zero crossing failure.

Replace diodes D6301 and D6116 on the G board with 1n4002 diodes.

May 17, 2009 | Sony KP-51WS520 51" Rear Projection...

1 Answer

No picture or sounds red light blinks 10 times


The parts you need are two diodes, D6301, D6309, and D6116, Sony part numbers 6-500-567-21 (D6301 and 09) and 8-719-081-97 (D6116), they are located on the G board, and that's located on the left side of the set, as seen from the back.

D6116 is connected to pin 9 of transformer T6101, and D6301 and 09 are in series off of pin 7 of that transformer.


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1 Answer

Sony Wega KDP-57WS655 Standby light blinks 9 times and wont turn


Service Manual of KDP-57WS655 says if TV standby light blinks 9 times then problem is Zero Corssing Detector and you need to replace diodes, D6116 or D6301 which are open on G Board.

Nov 24, 2008 | Sony Grand WEGA KDP-57WS655 57" Rear...

1 Answer

Model KDP-51WS655 - blinks 9 times


A 9 flash code is defined as a zero cross failure, basically a power supply fault. It is usually caused by the failure of one or two diodes on the G board D6301 or D6116. D6116 is 871908197 and D6301 is 650056721. If you can get them and are handy with a soldering iron, you can probably replace them. Be sure the set is unplugged and use care when installing them, as high voltages exist in the set even after it is unplugged. If this answer is to your liking, please be sure to rate it. Thanks! Also, a good confirmation of this is to turn the set on using the following error code display method. With the original remote, press the following buttons:
DISPLAY
5
VOL -
POWER
The set will usually turn on this way if the diodes have failed

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5 Answers

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Don't replace the entire G board! that is expensive! The diodes are available from MCM electronics and can be easily replaced.

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1 Answer

Tv does not turn on


Diode D6116 or D6301 is open on the D board replace those two diodes.

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2 Answers

Sony rear projection tv How to de-solder


I would suggest not to desolder that transformer until you are certain that is defective.
Try to change D6116 and D6301 first.
You can try Radio Shack or check this site.
Good Luck.

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