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I have an older Sony Trinitron and when I try to turn it on, the screen makes the normal sound, but nothing shows up on the screen and the standby light blinks, turns off, then turns back on again

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  • Sony Master
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Ur high voltage is dead.The FBT,dead.The flyback transformer,big black block of plastic with a red wire with a cap hook to the CRT(tv tube).

Posted on Sep 29, 2009

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My sony trinitron screen goes black and the standby light blinks


How many times the standby light blinks at a time? Number of blinking of standby light with Sony Trinitron CTVs are fault indications. To know more about these blinks, and fault location, get in this site named Electro-help, and pull up older posts there. Try this link, and select the site.

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No picture or sound when powered up. Red Standby light flashes continually. My Sony KV 36 XBR250 Wega Trinitron XBR is about 10 years old and has worked perfectly up to this point. What could be the...


Did you get your set fixed or did you replace it? My same set did the same thing. Turned it off for 2-3hrs after watching it and when I tried to power it up- nothing but the sound it would normally make just before the major power up, sort of a relay click sound. No picture or sound but the red light blinks non-stop.

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How to turn standby off


The TV circuit may have detected a problem within its parts. You may have to check some leaking capacitors in the board or loose solders or burned components just to make sure. Normally leaving the TV unplugged overnight should reset it.

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Stuck in standby


The 4 blinks indicate a vertical deflection problem. Either the connections on the legs of the vertical IC are bad or the IC is defective. If you can solder, you can fix this yourself. Let me know if you wish to attempt the repair and I'll provide more details and instructions.

Dan

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1 Answer

My Sony Trinitron won't turn on...has 4 blinks in Standby.


Hello,
There are 3 reasons for 4 blinls
1.unit went to stand by mode because of h-pulse
2.Vertical defflection pulse stopped
3. power line is shhorted or power supply is stoped.

Solution:
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2. Check IC561 on A-board.

Good Luck
Dals123

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2 Answers

Blinking STANDBY Light front of Television


Hii...
Refere to Sony Blinking Codes :
5 Blinks ===> cause AKB circuit (AKB). Something is wrong with the video. check components on the C board, also check the A board. Also unit be in IK blanking, try turning up screen slightly.

Hope can solved the problem....

[Vrya]

e-mail : be_cek@yahoo.com

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Sony Trinitron blank tv/no picture


When I turn on the TV I hear the click sound and the TV powers up. Immediatly the red (standby) light begins to flash 6 times on and off. this happenes only in the morning, but after 5:00PM when youturn on the TV as if nothing is wrong.

what is the problem?

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1 Answer

Flashing/sparking of image


no doubt. replace LOT and horizontal output transformer with new one

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