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Tda8172 sony tv starting time horizantal line for a moment.but tv no raster.

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Failure of vertical sweep output. Check all the solder terminals of vertical output IC, for any loose solder. It is best to resolder all the solder terminals to this IC, by applying a little more solder to each solder terminals to that IC, without making any solder bridge short in between adjacent solder terminals.

Posted on Jul 16, 2013

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SOURCE: sony kv-32xbr400

Hi The problem is dry joints on the vertical output ic for sure(commen fault with sony),ime in the uk and 99% of the time i get a call about sony tv its allways switches itself off, caused by dry joints.

Posted on Mar 27, 2006

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1 Answer

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

2 Answers

With sound but no video only raster with vertical lines


The resistor (r9335) on the blue crt base board is open and burned thats why the 200v is missing. replacing the resistor will solve the problem. cheers!

Apr 08, 2009 | Sony KP-FX532M91 TV

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Sony KV-35s26 Chassis AA-2D problem


well I thought they had one there but it looks like they only have other chassis # and I have been looking to try and find your chassis # but the only ones ask for money to get it , but I have found some codes and remedy's for your chassi , you had a 5 blinking code which the diagnosis would be this
5 times, Diagnosis: White balance failure (Not balanced) Possible causes: Video out (IC7101, 7201, 7301) is faulty (CR, CG, CB board), CRT drive (IC309) is faulty (A board), G2 is improperly adjusted. Symptoms of the problem: No raster is generated, CRT cathode current detection reference pulse output is small.
if the blink code is now different then let me know what it is and i'll give you that diagnosis

electech

Nov 03, 2008 | Televison & Video

1 Answer

Sony trinitron kv35s26 (August 1997) no video, only audio


this is the best out there , but you will have to use one with the same chassi #
http://www.eserviceinfo.com/equipment_mfg/Sony_2.html
glad to help! plz give time for a good rating, thanks , j (electech)

what another models fault is in the video, should help find you find problem
Sony
Model:kv32s45
Chassis:AA2d
No video, Has High voltage. Turning up G2 show a very dim full raster and on the sides a very bluish faint bar .
Replace Vert. IC561 (TDA8172)
Comments:
need any more help just ask , thanks

electech

Oct 29, 2008 | Sony KP-65XBR10W 65" Rear Projection...

2 Answers

Sony KV-27FS100


in theses set's there should be a board that has a module that the power chord plugs into this module supllies the motherboard and the componants on it. to be honest it would be best to just let a professional replace any defective chips orboards at this point because i believe it is not just one problem but several and without me beibg hands on it would be difficult to narrow it down to just a simple answer.

Sep 08, 2008 | Sony FD Trinitron WEGA KV-27FS100 27" TV

1 Answer

Sony kv32v15, Red screen with fine horizantal lines then shuts off


I would suggest to measure the 200 volt B+ at the CRT socket. If that voltage is found to be low, disconnect the socket from the CRT and measure again. If the voltage reading returns to normal you may have a defective CTR.
Also check for open or defective diode on flyback transformer for the 200 vdc source.
I would also suggest to take all the necessary precautions since you are working in a very high voltage area.
Good Luck.

Jan 14, 2008 | Sony KV-27XBR45 27" TV

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High pitch noise in 27PT6441.


Check regulator and large filters in PS. Capacitors.

Sep 21, 2007 | Philips 27PT6441 27" TV

1 Answer

Sony trinitron 32 in. pip no video, (raster, with audio)


What you have described there is a classic example of the jungle IC failure. Ic301 Sony p/n 8-752-101-04. A pic with no color, and lines or grainy texture in the picture. Not a project you want to tackle if you don't have the proper soldering equipment or skills. And not a costly one at a good repair shop.. Only real hurdle is getting that heavy monster into the shop. To answer your question, yes what you described there is raster. Even the salt & pepper looking screen with no real decernable image is described as raster. In fact any image generated on the CRT is raster. And yes, these sets are prone to solder joint problems, usually ring cracking in circuits that generate the most heat.

May 20, 2007 | Sony FD Trinitron WEGA KV-32FS100 32" TV

1 Answer

Sony kv-32xbr400


Hi The problem is dry joints on the vertical output ic for sure(commen fault with sony),ime in the uk and 99% of the time i get a call about sony tv its allways switches itself off, caused by dry joints.

Mar 26, 2006 | Sony FD Trinitron WEGA KV-32XBR400 32" TV

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