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

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Sony Trinitron KV-32FS320 4 blinks

I own a Sony Trinitron and purchsed the service manual. According to the manual, IC561 is faulty and need to be replaced. How hard would it be to replace? I have the TV cover off and located the IC on the board. Any help would be appreciated. Thanks Gurus

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  • Anonymous Jan 05, 2008

    SONY Trinitron 32" TV blinks on & off

  • Random Hero Jan 23, 2008

    I have the Sony FD Trinitron KV-32FS320...When I press the power button I see 5 flashes and then a pause and then 3 flashes....I spoke to a repairshop and they said 5 flashes means a no h drive issue....Can someone please help me with this issue....The set is only 3 years old...

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  • 17 Answers

First, understand the dangers of high voltage and charged capacitors inside a TV set! Discharge all capacitors and the picture tube in a safe way before proceeding.

What kind of IC is it?
If SurfaceMounteD:
1. Heat the IC pins and use a solder wick to remove ALL solder tin.
2. Use a sharp screwdriver or a knife to gently lift the IC from the PCB. Pay close attention if any of the pins is still attached to the PCB, if so, repeat step 1. Be careful, if you break the PCB, the Sony is ready for the dumpster...
3. Put the new IC in place, begin to solder pin 1, and then the pin most far away from pin 1.
4. Solder the rest of the pins, as quick as possible to not overheat the IC. Don't care if solder short circuit the pins.
5. Use a solder wick to remove all eventual short circuits that was the result of 4.
6. Inspect one more time to be 100% sure no short circuits remain.
7. finished.

If mounted through holes:
Same as above, with following additions:
1. a possible addition of a solder sucker.
4. The speed is still important, but since the pins are not so close, you should be able to do it without shorting.

Posted on Dec 31, 2007

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1 Answer

Have a 4 blink error on a Sony KV36FS120


Yes, there's a posibility that IC561 is partially faulty but on the symptoms you've described, I would advice you to replaced first C539(470uf/25V) and C561 (47uf). I've suspected that these filter electrolytic capacitor is already leaky or dried up...

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Go to turn on blinks green like normal then turns on real quick moment than shuts off and blinks red 4 times pause four times


Hi,
According to the symptom on A Board +13volts not being supplied, and this is due to IC561 Details(Part No. and Description) of IC is given below:

8-759-980-58 IC TDA8172

which is not working please replace it and your tv work fine again.
Thanks for using fixya.

Nov 18, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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

Solution:
1. check 13vdc on A board of powersupply stage
2. Check IC561 on A-board.

Good Luck
Dals123

Sep 08, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

0 volts on pin 9 of the flyback


Base on the service manual information, yes IC561 could be defective.
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Sony KV-32FS120 blinks 4 times


good day.
Have you tried first resoldering the terminals in the circuitry?
Also, try to check for the ABL supply near the flyback. Watch out for the small voltage zener diodes.


response is highly appreciated.


chris

Mar 26, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

3 Answers

Sony FD Trinitron WEGA KV 32FS120


Hiii...
I'm not certainly sure how many time the led blinking ?

I hope hear from tou soon...

Thank's

[Vrya]
be_cek@yahoo.com

Feb 23, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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