Question about Sony FD Trinitron WEGA KV-32FS120 32" TV

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My tv whe I turn it on will only stay on for 4 seconds and then turns off, and the stand by light is on and blinking.

Can keep tv on long enoiugh to get to settings screen to maybe find out whats wrong

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  • Sony Master
  • 14,553 Answers

Have you when set turns off and standby or power light flash to count here the blinks if in a sequence like seven blinks, pause etc? This se should have the error buffer.

Posted on Dec 09, 2012

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6ya6ya
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Posted on Jan 02, 2017

CompuGuy44
  • 432 Answers

SOURCE: No picture and tv automatically turns off

Here are the blink codes. 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 Cboard, 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 newer models of Sony TV sets, this code means that T8005 is 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. Intermittent problems? This is a great feature. You can also bring up these fault codes on-screen to see a list of the problem numbers with the abbreviation of the problem and the number of times this problem has occurred. This is slightly different than entering the service mode. To see the diagnostic screen, press the following buttons: Display, Channel, 5, volume Minus, ( not plus ) then Power. This brings up a screen with a list of the problems and number of times they have occurred. Each of the problems named, are abbreviated as, "OCP", "OVP", "V STOP", ETC. We have repeated them in parentheses in the text for the "Blinks" described above so you can correlate between the diagnostic screen and the blink codes. Now that you know about these self-diagnostics, how do you use them? Say that you have a set with a black screen. You see that the LED is blinking four times. This would tell you that you have no vertical sweep, which is why the video is muted. If it was blinking 6 times, you would know that you have a horizontal fault. It's not a sure cure..

Posted on Jul 06, 2007

DOCTOR VIDEO
  • 131 Answers

SOURCE: tv wont turn on -- stand by light just keeps blinking

This is very common problem for sony. Blinking light is power supply problem need to replace two voltage reulators in supply and caps and sometime horz output.


Sometimes if you adjust screen voltage adustment on flyback just slightly it will fix it.

cost if ps is 225.00
screen is 95.00


Thanks doctor video

Posted on May 18, 2008

rulds2008
  • 3866 Answers

SOURCE: tv turns on then off, stand by timer light blinks 4 times

You need to replace the power supply unit on this as it has malfuctioned there about $90 bucks plus labor on that.

Posted on May 25, 2009

welcomejee
  • 10594 Answers

SOURCE: my sony trinitron turns off by itself and then the

Hi,
This is picture tube related problem and we call it incorrect white balance.
Adjust Screen Volts of picture tube and control knob wold be located on flyback transformer. If you have knowledge about tv and know that tv contains high voltage and you can take care of that then do it yourself or ask local tv repairman to fix it.
Thanks.

Posted on Jun 13, 2010

  • 1 Answer

SOURCE: Wont turn on. There are 5 and 6 blinking stand by

my sony kv-34hs510 tv wont turn on.ther are 6 and7 blinnking stand by lights.

Posted on Jul 16, 2010

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