Question about Sony Grand WEGA KDP-51WS655 51" Rear Projection HDTV

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Unit powers up, then shuts down

My Sony KDP-51WS655 powers on, appears to go through a self-test, then shuts off. I removed the rear cover to try and isolate the area where the "popping" comes from, but I am unable to "hear" which board is making the sound. The bulbs all show their color for a second or two, then the unit pops and the bulbs shut down. I have the technical experience to remove and replace the offending board, I need help trying to isolate the board. Thanks!
Rich - richcltt@yahoo.com

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  • BEANDOG May 03, 2008

    TV TURNS ON TO STAND BY THEN SHUTS OFF

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1 Answer

IT MAY BE A CRT INTERNAL ARC

Posted on Apr 30, 2008

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2 Answers

Where the g board located on sony kdp-51ws655?


Check the picture below to find the G board on your TV.719e390.jpg

Sep 14, 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".
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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

KDP-51WS655 OR KDP-57WS655 57 inch HD PROJECTION TV SONY Problem: I have to remove the plug from wall outlet and push it back in a few times in order for the TV to actually turn on. Otherwise the power...


check the power switch for dry joints and resolder all joints if it still doesnt work check power board for dry joints as this is a common problem let me know how u go

May 28, 2010 | Sony KP-57WS520 57" Rear Projection...

1 Answer

Sony KDP-51WS6755 not turning on, power surge, pop, 6 blinks.


unplug it immediately. never tolerate a sizzle (frying noise) or a popping noise. do NOT replug. fire hazard.
contact serviceman for repairs. Sears Home Service can handle this for you.

Apr 14, 2010 | Sony Grand WEGA KDP-51WS655 51" Rear...

1 Answer

My sony kdp-51ws550 turns on and then dies in seconds. what is wrong with it??


most likely bulb is going bad and internals are dusty helping overheat the already used bulb.

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

1 Answer

Part number for mirror in Sony KDP-51WS655


Sony Part Number: 2-023-094-01 I WENT TO A WEB SIGHT CALLED WWW.PARTSTORE.COM U MAY WANT TO GO THERE AND MAKE SURE ITS WHAT YOUR LOOKING FOR IT SAID A MIRROR (51)

Mar 07, 2009 | Sony Grand WEGA KDP-51WS655 51" 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

Oct 26, 2008 | Sony Grand WEGA KDP-51WS655 51" Rear...

1 Answer

Sony KDP-51WS655


how many times does the light blink?

Feb 19, 2008 | Sony Grand WEGA KDP-51WS655 51" Rear...

1 Answer

Sont kp-46wt510 blinks 4 times


IC1509 8-759-593-33 IC LA78045 35.98
Q1505 8-729-423-33 TRANSISTOR 2SC3311A-QRSTA
Replacement part
8-729-119-79 TRANSISTOR 2SC2785-FEK-HFE 1.02

these ic locations are different than yours but same part number.
is there a 2sc3311 near by LA78045?

Jan 10, 2008 | Sony Grand WEGA KDP-51WS655 51" Rear...

1 Answer

Sony KDP-51WS655 Need part and info


The cn6001 part number is 1-580-843-11
The Diode part number is 8-719-843-11 (both diodes are the same)

Oct 31, 2007 | Sony Grand WEGA KDP-51WS655 51" Rear...

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