Question about Projection Televisions

2 Answers

I have a sony kp57ws520. The set wont turn on and the lite blinks 9 times. I was told at one time to solder two specific diodes on the g-board and that worked for a period of time. Now the problem is back. Who can I send the board to for repair ? or is the set shot ?

Posted by on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 2,267 Answers

If you only solder them, this time around it looks like they might need to be replace.
Let me know if you need further assistance.

Posted on Aug 25, 2008

  • Jaime Hernandez Aug 25, 2008


    D6116 or D6301 is open (G Board). I would suggest to change them both just in case the has a short life span.

  • Jaime Hernandez Aug 25, 2008

    I meant the other one has a short life span.

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 4,234 Answers

Resoldering those parts is known as a temporary "fix". Those parts need to be replaced. I believe that they are D616 and D6301. Both are on the "G" board. I don't have a listing for your specific model, but most of thr 57s are similar.

Keep us posted.
Dan

Posted on Aug 25, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

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...

1 Answer

Sony Wega kp46wt520 no power up, 9 times it blinks red


You will need to replace the G board. You can try replacing the two diodes that usually fail, But because its a complex circuit with the zero cross detection the diode replacement never fixes the issue. Replacing or remanufacturing the G board is the only sure way to fix that issue.

Nov 28, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

The tv wont turn on. the red light blinks 9 times.


There is a problem with one or two of the diodes on the G board.
Zero Crossing Detector 9 times 9:0 or 9:1
Probable cause • D6116 or D6301 is open (G Board)
symptom • No picture
I hope this helps and good luck!
2803f4c.png

Oct 31, 2009 | Sony KP-51WS520 51" Rear Projection...

1 Answer

Sony 9 blink problem


9 blinks shows problem in power supply (G Board) and service manual suggest to check D6116 or D6301 that could be open on G Board.
Thanks.

Sep 01, 2009 | Sony KP-57WS520 57" Rear Projection...

1 Answer

TY,found scematics,ordered parts,mine only blinks 4 times though!Is this a different problem,am i wasting my time with the diodes?.Can hear aclick like a relay,when I try to turn on,standby blinks 4...


Hi,
According to the self diagnostic system 4 thimes LED blinking,
The fault is in vertical section, Vertical deflection is stopped, 15V not supplied (D Board), IC 5101 could be faulty(D Board).
Therefore check the above mention area it will help you.
Thanks for using fixya.

Jun 28, 2009 | Sony KP-57WS520 57" Rear Projection...

1 Answer

Set wont turn on, stand by lights blinks 9 times


Have the same thing happening with ours... we were told by a repairman that it needs a new D Board. He told us that if we could fix the TV for under $500 that it was worth it, if not (which of course, we can't when you add in labor cost) don't fix it. I like the TV but I can buy a brand new flat screen for that!
Good Luck

Mar 29, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

9 blinks


D6117- Change switching Regulator on G board you can also do Self-Diagnostic Mode Press display ,5 . vol- ,power. this should turn set on and show other codes telling you what else maybe wrong. TO Remove codes and clear back out Press display,5,vol+,power Now Press 8 and Enter.

Jan 05, 2009 | Sony KP-46WT520 46" Rear Projection...

1 Answer

KP-46WT520


IC8002 # 670581001 on D board .Ater replacing 3 diodes how many times does it blink now?

Jan 03, 2009 | Sony KP-46WT520 46" Rear Projection...

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...

3 Answers

Sony KP-51Ws520


9 blinks means, "Zero Crossing Detector" and the probable cause locations listed are "D6166 or D6114 is open (G board)". I had the exact same problem so I just ordered a new G board and swapped it with the old one and now everything works fine! You could order a new one at this site: http://www.partstore.com/PartSearch.aspx?PartNumber=A1054157A&x=31&y=19. The Sony board number is A1054157A. Replacing the G board is rather simple; all you got to do is pull out the back cover of the TV and the G board is the first board on your very left. After that unplug the four connectors and replace it with the new one. Here is a picture of the G board inside your TV: http://img47.imageshack.us/img47/8396/backev6.jpg. Hope this helped!

Apr 24, 2008 | Sony KP-51WS520 51" Rear Projection...

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

188 people viewed this question

Ask a Question

Usually answered in minutes!

Top Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

yadayada
yadayada

Level 3 Expert

60769 Answers

Are you a Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...