Question about Sony FD Trinitron WEGA KV-34HS420 34" TV

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I have lost sound and picture, red light is blinking. I have technical experise. I took the case off. I believe the problem is either a power supply IC or the optical isolation IC. I need part numbers to identify the components..........

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  • Sony Master
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It those 2 power supply ICS near the right side of the FBT.These are common parts are dead.Power light indication flashes.

Posted on Sep 06, 2010

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Posted on Jan 02, 2017

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Tv will not come on. Red light blinking on bottom left front. Red light blinks 7 times


I have the model Philips 37PF7320A/37 won't turn on and MOST articles on the Internet say it's the Capacitors capictors capictors..I checked all of them. My tv just blinked red lights, had the clicking sound at first power on, but then goes black. No sound. No picture. Nothing. Just blinking red lights.

MINE WAS RESISTOR no. 3318 , a 100 OHM RESISTOR ON POWER SUPPLY BOARD.

I BOUGHT REPLACEMENT FOR .99 CENTS SOLDER IT, AND EVERYTHING WORKED!!!

THAT WAS ALL IT TOOK.

JUST A SUGGESTION..
1. CHECK FOR BULGING CAPACITORS (90 PERCENT OF THE PROBLEM)
2. THEN CHECK FOR RESISTORS WITH MULTIMETER ( FALLS INTO THE OTHER 10 PERCENT OF THE PROBLEM.)

TELL ME IF THAT HELPS..normanw1@yahoo.comj

Nov 01, 2011 | Philips 42PF7320A 42 in. Plasma HDTV

2 Answers

No picture or sound


try first unplugging power cable for 5 minutes

Aug 10, 2008 | Televison & Video

1 Answer

Philip tv no picture no sound


I have the model Philips 37PF7320A/37 won't turn on and MOST articles on the Internet say it's the Capacitors capictors capictors..I checked all of them. My tv just blinked red lights, had the clicking sound at first power on, but then goes black. No sound. No picture. Nothing. Just blinking red lights.

MINE WAS RESISTOR no. 3318 , a 100 OHM RESISTOR ON POWER SUPPLY BOARD.

I BOUGHT REPLACEMENT FOR .99 CENTS SOLDER IT, AND EVERYTHING WORKED!!!

THAT WAS ALL IT TOOK.

JUST A SUGGESTION..
1. CHECK FOR BULGING CAPACITORS (90 PERCENT OF THE PROBLEM)
2. THEN CHECK FOR RESISTORS WITH MULTIMETER ( FALLS INTO THE OTHER 10 PERCENT OF THE PROBLEM.)

TELL ME IF THAT HELPS..normanw1@yahoo.com

Oct 30, 2011 | Philips 52PFL7422D/37 TV

1 Answer

We have an 11 yer old sony wega KV-32FV15 We lost picture and sound. Power on swirtch activates the standby red light which just continues to blink (no Sound no Picture0 We know we have the power plug...


the tv is defected needs to be repaired..have a tech repair your tv.the problem is in the power supply or horizontal circuit.could be any thing in one on those circuit.good luck.

Aug 28, 2011 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

BLINKING RED LIGHT AND NO PICTURE OR SOUND


The flashing light indicates a short circuit inside the power supply circuitry. This type of repair is not a DIY without a multimeter, desoldering iron and hand soldering skills. I repair these power supplies, if you need further info write to jah2mil@hotmail.com

May 27, 2009 | Akai LCT2701TD Television

1 Answer

AKAI LCT26Z4AD wont power up.


Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.

Mar 10, 2017 | Televison & Video

3 Answers

Blinking red light


I DO HAVE THE SAME PROBLEM , ONLY THE RED LIGHT BLINKING ,NO SOUND NO PICTURE '
PLEASE I DO NEED HELP TO FIX IT .THNKS

Nov 15, 2008 | Akai LCT2715 27 in. LCD Television

2 Answers

TH-42PX80U


i have the same problem but i have 11 blinks

Aug 13, 2008 | Panasonic TH-42PX60U Television

1 Answer

Blinking lights then shuts off


That happen to mine. It was a bad power supply and mine was out of warranty so i replaced it myself and it fixed it. I believe it was just a weak power supply and was just not giving it the voltage that it needed anymore

Mar 24, 2008 | Sony Playstation 3 (PS3) Console

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