2003 Sony Trinitron KV-32HS510 video issue

[pac.attack76]

I can't find a replacement. I'm assuming it's 1-684-698-13.

[pac.attack76]

Got the board out. Had it checked by someone. He went over the bottom and hit a few places that looked questionable. I don't have the proper iron for this. I put it back in and tried it and now it doesn't start up. It just clicks, blinks led 3 times then clicks again.

[pac.attack76]

On the very first attempt, it's sounds like it's gonna turn on. Probably the sound of the degauss. Any attempt after that is just one relay, 3 red led blinks, then another relay. Nothing else. Not even static on the screen when you touch it like you'd get if it turned on.

[JohnCT]

Originally Posted by pac.attack76

On the very first attempt, it's sounds like it's gonna turn on. Probably the sound of the degauss. Any attempt after that is just one relay, 3 red led blinks, then another relay. Nothing else. Not even static on the screen when you touch it like you'd get if it turned on.

With the TV unplugged, go the horiz output and measure resistance from collector to emitter. It should be virtually open. A short means the transistor is bad.

If there's no short, measure the voltage on that transistor from collector to emitter - it should be over 100VDC. If that's missing, you work back toward the regulator. If that voltage is there, we work on the horizontal drive.

Is there a schematic on-line?

John

[pac.attack76]

I downloaded the pdf of the service manual. Would u be able to show me on the manual where I need to test? I'm not familiar with emitters and collectors. My 30 years with self learning is limited. I tried sharing it on her but it's like 15 mb.
https://www.manualslib.com/manual/85...v-32hs510.html

[pac.attack76]

Originally Posted by JohnCT

With the TV unplugged, go the horiz output and measure resistance from collector to emitter. It should be virtually open. A short means the transistor is bad.

If there's no short, measure the voltage on that transistor from collector to emitter - it should be over 100VDC. If that's missing, you work back toward the regulator. If that voltage is there, we work on the horizontal drive.

Is there a schematic on-line?

John

Do I need to leave the board in to do this or can I take it out?

[pac.attack76]

I've given up on this one.

[JohnCT]

Originally Posted by pac.attack76

Do I need to leave the board in to do this or can I take it out?

Board in if you can get to the test points - out if you need swing room.

Have you measured the voltage at the collector of the horiz out?

John

[pac.attack76]

Originally Posted by JohnCT

Board in if you can get to the test points - out if you need swing room.

Have you measured the voltage at the collector of the horiz out?

John

Naw, even if I did get it to turn on again, I'd be back to replacing all the caps for the vide. Apparently these sets aren't so good for old games because there's some sort of lag.