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

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Sony wega lcd hdtv picture and sound goes on and off every 30 seconds

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Re: Sony wega lcd hdtv picture and sound goes on and off every 30 seconds - Sony FD Trinitron WEGA KV-32FS120 32" TV...

Software upgrade required.

Posted on Mar 01, 2008

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Five blinks to Sony Wega denotes a fault to its 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.

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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

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My Sony Wega Trinitron KV-32HS20 does not tun on and the standby light flashes 4 times. I can hear the sound but no picture and the it turns off automatically after a few seconds.

This is a tip I got from a tech bulletin.

IC600 output pins 14, 15, 16, all have aprox 130v (all should be higher) until relay clicks
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Checked D611 (135v rectifier) it was fine. Checked D615 (It's labeled D601 on the board)
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Sep 08, 2010 | Sony FD Trinitron WEGA KV-27FS100 27" TV

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My Sony Grand Wega KDFE60A20 stay on for 30 secons and then goes off for another 30 seconds, can you please tell me what's wrong whith it. thans

Its symptom of weak lamp and TV needs lamp replacement.
Please buy Sony original lamp and avoid after market / cheap lamp.

Jun 22, 2009 | Sony FD Trinitron WEGA KD-36FS130 36" TV

1 Answer

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it sounds like your "lamp" is going out look for a hidden compartment.. or in your owners manual to see where its located its an easy fix and costs much less than a new tv

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your lamp may be going bad.
replace the lamp by sending it to sony (if under warranty) or order a new lamp from .

the location of the lamp should be in the manual.

Aug 23, 2008 | Sony FD Trinitron WEGA XBRKV-40XBR800 40"...

1 Answer

20 inch wega @1999 Picture comes in and out

Try to finde lose connection/ cold solder joint at board attached at end of picture tube. It seems heater/ filament voltage not being supplied to picture tube after a while and picture goes to black.

Jul 22, 2008 | Sony FD Trinitron WEGA KV-20FS120 20" TV

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