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Old 08-09-2019, 04:45 PM
grossbard grossbard is offline
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Join Date: Sep 2017
Location: Oklahoma City, OK
Posts: 35
Sony KV-27S42 Black screen and blinking standby light

I've been in the process of recapping a Sony KV-27S42. I first recapped the power and horizontal sections and it was working great. The other night I recapped the vertical section and also several caps near the jungle IC.

Now when I turn on the TV, I get high voltage but just a black screen with a constantly blinking standby light. The remote still turns the TV on and off, but I get no OSD or picture. If I turn up the G2, I can see retrace lines. I can't test if the sound works, because the sound stopped working on the TV a while back.

I double checked that all the caps I put in were the correct value and polarity. I measured the cathodes and get 200v on each one.

I looked for cold solder joints but didn't find anything obvious. I reflowed several points just to be safe.

From what I read in a Sony training manual I found somewhere online, a continuous blinking standby light means no jungle IC communication. Is the jungle fried?
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