Question about Sony KP-57WS520 57" Rear Projection HDTV-Ready Television

3 Answers

Stuck in standby blinks 9 times over & over nothing else works. The power light dosent come on . After reading a earlier post by PREMTECH posted on Jun 6 2007 . Where he suggested replaceing parts D6116 & D6301 On the G board located off pins 7 & 9 of T6301. D6116 is a surface mount and in the past he has used a 1N4007 for both. I took out G board now how do I desoler it remove pins and resolder new part in .And can I get tools and part at RADIO SHACK.

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  • jd0109 Apr 10, 2008

    well Iam looking at the back of the board and the Ds look like Bs. Would it be possible that the Ds would have a line through the middle of them.

    Iam looking for D6116 & D6301 . Would D6116 be little black square on top of the solder and D6301 look like a diode with two legs going through the board. If so can you talk about how to remove that square and how to put it back. And just in case where would number of the G board be on it.

  • jd0109 Apr 10, 2008

    OK , guys I ordered the G board from the Partsore.com $89.49.

    If this works I will be happy. Thanks alot

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3 Answers

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  • 788 Answers

I would go to a specialty electronics parts and supply shop rather than Radio Shack but they might carry the 1N4007 as it is quite common.

You will want a very good solder iron with a small tip for the extra precision. A good solder ****** or wich for the removal, and a third hand apparatus for the resoldering. Also very steady hands!!!

you may want to consider having a professional do this as it isn't easy, especially when you're dealing with surface mount components.

Posted on Apr 10, 2008

  • 5 more comments 
  • Dean Joly
    Dean Joly Apr 10, 2008

    I said "iron" not sure why the system censored me???

  • Dean Joly
    Dean Joly Apr 10, 2008

    No sorry I said ****** s-u-c-k-e-r, that's funny.

  • Dean Joly
    Dean Joly Apr 10, 2008

    I would actually consider replacing the entire G-Board, looks like they cost between $50 and $100 dollars. Would be a lot easier and safer for your TV.

  • Dean Joly
    Dean Joly Apr 10, 2008

    Get the part number off your G-board since you have it out and search for it here: http://servicesales.sel.sony.com/web/pro...

  • Dean Joly
    Dean Joly Apr 10, 2008

    They are both diodes but they might look different. sometimes the silkscreening doesn't do a great job with the labels and they could be a little small, most likely you are looking at the right components, I can't think of a component category that would start with 'B'.



    Removing the surface mount ones is a little tricky, you would heat the solder with your iron, sometimes applying a tiny bit of fresh solder helps it melt properly, then user the solder s-u-c-k-e-r to **** up the melted solder. You have to be quick or you could burn the surrounding computers especially any ICs that connect directly to the component. You may have to do it a few times on each side to get it loose, letting things cool off between attempts. Or you could use pliers to wrench the diode off the board then use the above method to clean up the contact pads. Reapplying the new component is a little easier but this is where a third hand apparatus is helpful, use it to hold the board and the component in the right location then apply some solder to the component and it's contact pad making sure the solder doesn't connect over to something else or short our your diode. VERY tricky especially for the tiny surface mount stuff. These components are designed to be soldered in baths or baked in ovens, not by hand using an iron.



    I think the part number for the board starts with an 'A'. Something like "A-1054-157-A".

  • Dean Joly
    Dean Joly Apr 10, 2008

    Partstore.com has it here: http://www.partstore.com/Part/Sony/Sony/... for $81.54.



    Here it is for $51.54: http://gadgetbee.com/s/SonyA1054157A.htm... don't know if this site looks trustable though.

  • Dean Joly
    Dean Joly Apr 10, 2008

    No problem, anytime!

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  • Master
  • 3,422 Answers

HI,

The first thing is that you can get the tools and parts from radio shack as well as form HERE and HERE

Here is the list of sony codes

  • Unit is dead, No blinks - Problem in the standby power section. Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open).
  • Continuous blink once a second, no pausing - No reply from the jungle IC301 (data bus is busy, shorted to ground, or held high), IK video path is defective.
  • One blink - not used for the self-diagnosis
  • Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.
  • Three blinks - B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.
  • Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505
  • Five blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.
  • Six blinks - No Horizontal (H STOP), no raster, goes to the blinking self-diagnosis function immediately. Check C515 & 516 and the jungle IC, IC206.
  • Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
  • Eight blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.

  • Nine blinks - Replace D 6116 and D 6301 on the "G" board, do not resolder as this will fix the problem temporary. Or Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator on the "G" board or check connections. Make sure the regulator is -12 or -13 (negitive).
Ten blinks - Check Q8014 and Q8013 for shorts, leakage, or bad solder connections on the " D" board. If the transistors are bad, check R8051 and IC8005, also on the "D" board.

Goodluck,
Please don't forget to rate the solution.

Posted on Apr 10, 2008

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  • Master
  • 2,267 Answers

If is the first time you are trying to do something like this, I would suggest to do a bit of reading before you do it.
Check these sites for info on how to solder. These sites on how to de-solder.
The tools you should find them at Radio Shack but the diodes is very unlikely but you can ask them.

Posted on Apr 10, 2008

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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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