Question about Sony KP-53V45 53" Rear Projection Television

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I have No picture but I have audio

I Just had my convergence IC replaced a couple of months ago and now my picture has gone out. I still have the audio but my projection lights aren't working at all.

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Re: I have No picture but I have audio

Have the tech look at your tv once again your problem is in the video section.the ic that controls that and the related circuit are not working parts needs to be replaced.good luck.

Posted on Apr 02, 2007

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I have a Toshiba rear projection TV model # 50H71 for about a month the tv would randomly pop off (lose sound and picture) for about 45 seconds and then come back on now th picture is reduced in size by...

Good Day,
The TV has a convergence problem; the IC’s for that circuit will need to be replaced. The cost for this repair runs around $450.00 or more.

Replace the defective Convergence Output IC Part Number
23905094 (STK392-110) using the revised “T” version IC Part Number
23135090 (STK392-110T). When Convergence Output failure is
detected, it’s recommended that both IC’s be changed to the “T” type IC
version. Inspect the Convergence Output IC’s for the “T” type version as
shown in Figure 2. Replace the Convergence Output IC’s using the “T”
type version Part Number 23135090 (STK392-110T).

Thanks for choosing FixYA, Big Irish

Nov 22, 2009 | Toshiba TZ50V51 50" Rear Projection...

1 Answer

My t v pictures are sharing colors

if its a pt47wx53 it sounds like the 2 convergence Ic chips are gone--also--there are several blue 2.2 ohm resistors around them---if any are discolored you will need to replace them also---this set uses two STK-392-110 convergence IC chips---you will have to remove the light box---I can tell you how--look for the convergence ic's inside and take a close look at the 10 or 12 powder blue resistors around them---if any two are white in the middle(discolored) they are gone--if you need any help let me know.

Aug 08, 2009 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Screen is showing a 3d effect. also the picture shows an outline also of pictures

The convergence IC has gone out. The convergence IC is either on the Main bd or the power supply bd depending on the specfic model and must be replaced and a Full convergence must be performed. Only a Samsung trained tech can do this. It will not be cheap.

Jul 16, 2009 | Samsung HCN4226W 42" Rear Projection...

1 Answer

Philips 43P8341 picture bowed red wont line up

You will need two STK392-120 convergence IC and about six 6.8 ohm 1watt convergence resistors you can get the parts at the following link and they provide free step by step instructions with pics.

May 27, 2009 | Philips 43P8341 43" Rear Projection...

1 Answer

I have a philips 9p6044. where can I buy convergence ic's and a

its far more likely that you need a new Vertical output IC. The convergence ICs wouldnt prevent the picture. When you have audio but no video it is often meaning vertical failure. Try replaceing the vertical IC

Apr 23, 2009 | Projection Televisions

1 Answer

Picture flickers in and out rapidly,gets blurry for about 5sec then looks like new for about 5sec then back again

Did you replaced 2 IC convergence as well or just 2 resitors 3.9 ohms ? if you did replaced 2 IC then you might have probelm in convergence drive it is1 of the PCB mount vertical on the left side from the rear view under part BP95-00415C you need to readjust the convergence by using your remote control just follow in the servive manual

Nov 22, 2008 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Phillips 60'' rear projection

There are only a couple of things that can casuse chirping in that model...1 is the convergence ic's and the other is the flyback. There are others but these are the two most common. Who replaced the convergence chips?
Do you know how to use a meter?
do you know how to soler?

Oct 26, 2008 | Projection Televisions

1 Answer

Bent picture

Not sure if you fixed your problem already. But the answer is a color convergence problem. You can try adjusting manually via the remote and if that doesn't work it is most likely the two main IC chips that control the color convergeance. It is also possible that not only the IC chips have gone bad but also there are a couple of resistors that usually burn out with the ICs as well. They will need to be replaced. This isn't something that I would attempt on your own. Typically a TV technician will charge between 300 and 400 to fix at your house.

Mar 15, 2008 | Philips 60PP9363 60" Rear Projection...

1 Answer


The part replaced is the blue convergence IC, part number usually

STK392-040 .A generic IC will last 10-12 months.You must have

OEM or better quality for durable repair. I use Panasonic brand.

Change both IC's for long repair duration.

Oct 13, 2007 | Samsung HC-P4752W 47" Rear Projection...

2 Answers

Is this a calibration, convergence, or lens focusing issue?

Did you Change out the Ground Resistors,220 Ohm,3.3Ohm Even if they look Good Change Them

Jul 20, 2007 | Mitsubishi WS-65869 65" Rear Projection...

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