Question about Sony KP-46WT510 46" Rear Projection HDTV

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Need help with a sony kp51ws520 tv - Sony KP-46WT510 46" Rear Projection HDTV

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  • bullit25 Jul 16, 2009

    about 10 days ago tv took longer and longer to turn on would get 9 blinking lights on standby. finally sunday 7/12 left tv blinking finally came on after about 10 minutes. then would turn on and off all day. mon 7/13 tv would not come on at all. thru research everybody said it had to be a coupla diodes on the g board. replaced the g baord now the set clicks blinks 3 times and then shuts off.



    the g board is the power supply board so if that is new or refurbed cuz sony doesn't make that board anymore what the 3 blinking lights mean.

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2 Answers

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  • Master
  • 601 Answers

HI...

Here is the list of codes....

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.

Thanks
Smith

Posted on Jul 16, 2009

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  • Master
  • 2,187 Answers

Hello there,

I would have to need additional info on the issue that you are having to properly help you out. Please include what happened when the issue occurred and observations on the unit such as blinking lights, and at what conditions does your error occur.

Thank you

Posted on Jul 16, 2009

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SOURCE: Sony Wide Screen Projection TV KP-51WS520

I had the same problem. blinking 9 times, pausing, 9 times...... remote would not power the tv on. after five minutes of pressing the remote it finally would. after turning it off you would have the same problem. sometimes a half hour of pressing remote in every which what way. finally left the tv on for three days and would mute at nite to go to bed. didn't think that was the best way so turned it off and it never turned back on. checked all the forums and found out it was the g board. unfortunately, you cant buy the whole g board anymore. if you take the back panel off the tv, on the lower left corner is where the g-board is. there are 3 little things to unplug and two screws (phillips head) in the middle of the g board. its simple to figure how to take it out. go to the sony direct parts website. the part # is A1054157A for the g board. since they dont sell it anymore they have a phase 3 program where you send in your old g board and they repair it for 64.95. it'll cost about 8 bucks to ship it to them. better than the 400 bucks the tv guy wanted. address is sony customer satisfaction ctr. , materials door 27H, mount pleasant, PA 15666 there number is 866-748-8272. call first and they give you the step by step instructions what to do. after tax and shipping it came out to less than 80 dollars.even came with a warranty. got it back in a week, popped it in and just love turning the tv on. anyone can do it.

Posted on Feb 06, 2009

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SOURCE: Sony Wega KP51WS520 Stand by Light blinks 10 times

its projection tube problem you need to get new one...

Posted on Jul 05, 2009

  • 115 Answers

SOURCE: Sony Wega Model #KP51WS520

Press in order on the SONY remote "display - 5 - vol. down - power" .that will show diagnostics indicating 9 Zero Cross Detect . You shoud take it to a servicer.

Posted on Oct 19, 2009

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I need a D board for a sony projection tv model KP-51WS520. Can I buy this anywhere or does it need repaired? Thanks in advance!


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ponent level . but here is a link to the parts to do that with from EBAY

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Sony KP51WS520- stand by light flashes 9 times and won't turn on. Have unpluged for 4 hours, still won't turn on.


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Press in order on the SONY remote "display - 5 - vol. down - power" .that will show diagnostics indicating 9 Zero Cross Detect . You shoud take it to a servicer.

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3 screens involved with this first 2 towards front nla at this time you could be looking at a new tv or get used ones from somebody that has a blinking light problem that dos'nt want to pony up the dough to fix it.

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9 times blink shows Audio Error in your TV.
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There's a small diode on the power supply board that causes this. Its identifiable by its purple stripe. You will need the correct type of diode to fix this properly. The diode supplies the standby voltage to the system control circuit, so when it fails, the TV will never come on.

michtech

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