Question about Sony KP-46WT520 46" Rear Projection HDTV-Ready Television

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The standby keeps flashing but the power doesn't turn on

I know power is getting to the unit but doesn't turn on.  I'm not sure how to dismatle the set but am willing if it will help.  The set was made in august of 2004?  any help would be great

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Re: The standby keeps flashing but the power doesn't turn...

According to all of the local repair shops, 9 blinks on the stand by light means that the power supply is shot. eand and every one told me that the set had to be taken to a service center for repair, since the power supply is in a board, not seperate. cost around my area is between 50 and 150 for the parts, labor from 100 to 200.

My view is never buy a sony again! 90% of the service shops will not touch sony, saying thay cannot be authorized by sony unless they pay sony for the certificate.

Posted on Nov 28, 2007

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The picture goes off, the power/standby light

Sony KDF-60XS955 picture goes and power/standby light light flashes


Most likely you have bulb failure. First step in troubleshooting is "Change the Lamp or Bulb". Lightning, power line bumps and collisions with vacuum cleaners can all shorten lamp life. Rough handling in shipment can also happen without your knowledge.

+90% of all Sony LCD Rear Projector "No Picture or Intermittent Picture" faults are related to bulb failure.

If new lamp does not improve the situation, then hands-on troubleshooting by someone that has parts and knows how the unit works is the only practical remedy.


Mar 14, 2010 | Sony Grand WEGA KDF-60XS955 60" Rear...

2 Answers

Tv wont power up Standby light keeps flashing.

First step in any Sony LCD projector repair is bulb or lamp replacement. Fixes 95% of problems.

Taking apart and trying to measure things without a known good bulb is a waste of time and effort.


Feb 26, 2010 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

I have a KDF-E50A12U Sony TV it won't turn on and keeps Flashing red twice, no other lights are on, just the stand by continually flashing twice.

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.

Oct 30, 2009 | Sony Projection Televisions

1 Answer

I just replaced the lamp on my sony wega 42WE655 tv and the lamp replacement indicator light onthe front no longer indicates that it is bad, but the standby light keeps flashing red. when i try to turn it...

If you just replaced the lamp then there's something wrong in the power circuit or you have a bad lamp. If you can I would take the back cover off and look at the board where the power cord connects and lok around it for swollen capacitors. Let me know if you find anything.

Oct 16, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

No picture

(i) Disconnect all the cables from the TV including the power cable then reconnect them after a few minutes.
(ii) Make sure that the power cord from the TV is directly connected to a functional wall outlet.

If the standby light keeps flashing then service will be required.

Aug 24, 2009 | Sony KP-53V75 53" Rear Projection...

1 Answer

Sony 50 Wega LCD flashing red light


How many times is the red light flashing? The number of times the red led blinks means---

  • 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.
  • No blinks(Unit is dead) - Problem in the standby power section. Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open).
Please do rate this solution as FixYa and revert for further assistance.


May 01, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Tv went off while watching a program power standby red light blinks 6 times then pauses then repeats tried unplugging unit waiting a few minutes then replugged same results nothing. can anyone help me ?...

Here's an excerpt from the Sony Manual online. And the link -

The POWER/STANDBY (red) indicator flashes three times
If your power/standby indicator is flashing in a pattern of three flashes, this may indicates that the lamp cover is not attached securely. Follow the directions in the Operating Manual under changing your lamp that related to closing and securing the Lamp Cover. Ensure that the Lamp Cover Door is securely fastened by tightening each screw.

The POWER/STANDBY (red) indicator flashes continously
If your power/standby indicator is flashing continuously, and the lamp cover has been secured, your TV may be in need of service.

The POWER/STANDBY indicator is lit up green (not flashing)
A sustained green light indicates your TV is on.

The POWER/STANDBY indicator is lit up red (not flashing)
A sustained red light from your power/standby indicator simply indicates that your TV is in standby mode. This shows you that your TV is ready to be turned on with the remote.

Is it the power light and not the lamp light? If the lamp light is flashing then replace the lamp.

Apr 07, 2009 | Sony Grand WEGA KDF-55XS955 55" Rear...

1 Answer

Tv will not turn on standby button keeps flashing

hello. well it sound;s like you have a power supply problem.!!! your not getting the voltage from the power supply that you need to start it up.hope this help's let me know. "good luck"

Jul 30, 2008 | Projection Televisions

3 Answers

Sony KDP-65S550 red light keeps blinking

The STANDBY light is flashing on the television and there is no picture or sound. Solution
sp.gif sp.gif The STANDBY light will flash if an issue is detected within the television. This can sometimes be resolved by simply following the steps below to reset the television.
  1. Turn off the television. IMPORTANT: For a projection television that uses an internal lamp, wait 5 minutes after turning off the television to allow the lamp to cool before continuing with the following steps.
  2. Unplug the television power cord from the electrical outlet.
  3. Let the television remain without power for 60 seconds.
  4. Plug the power cord back into the electrical outlet. NOTE: If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
  5. Turn on the television.
If the issue is still unresolved after following all of the troubleshooting steps, service may be required. Please note the number of times the STANDBY light flashes and relay that information to the service center.

Jun 28, 2008 | Sony Grand WEGA KDP-65WS550 65" Rear...

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