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

I was given a sony trinitron 32in pip tv, when it's powered up, audio is working, but the video only displays a monochromatic screen with regularly spaced lines (I think, this is called raster?) Is this a shorted picture tube? Or, are these sets prone to cold solder joints?

Anonymous May 28, 2007

It's sort of the solution, I thought it would be. Nice to know I was on the right track. Thanks for the good advice, and fine diagnostics!
Anonymous Mar 25, 2014

Raster blooming. Can fix vertical with service menu, but horizontal does not have enough range to correct

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934 Answers

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.

Posted on May 25, 2007

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