[TechAssist] Re: Sony KV32FS12 BA5 no picture
- From: "Damon" <damon101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 3 Apr 2005 00:34:21 -0500
IC301 Jungle CXA2154AS has video input and
output but No RGB out.
This confuses me in regards to the output, I assume you mean the video input
signal is processed and verifyable at several points in the jungle, but the
final output stage going to the CRT drive IC is missing??
If so, can you check the IK pulses if there is a sync signal present at the
least? (if it's missing from the RGB out, I'd lean toward the jungle) Check
it at the RGB output, the actual cathodes of the CRT and the return feedback
pins. Those IK pulse must be present to get video to pass thru. This TV is
too new to have a bad CRT IMO....
Damon Brunger
Telrad Electronics
Fort Wayne IN
----- Original Message -----
From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, April 02, 2005 4:02 PM
Subject: [TechAssist] Sony KV32FS12 BA5 no picture
> Sony
> KV32FS12
> BA5
> DEC 2000
>
> No Picture, turning up screen control gives retrace lines
> (Colors are shifted) and a faint ghost image. Scoping the Drive to the CRT
> No RGB drive of consiquence. IC301 Jungle CXA2154AS has video input and
> output but No RGB out. Replace IC702 TDA6108 and added C702 per service
> bulitien. Has anyone seen many jungle failures on this model? This set
came
> back from Guam a month ago and just apparently failed a few days ago. No
> apparent PCB cracks.
>
> Peter Oliver
> Tucson Radio TV
>
>
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