[TechAssist] Re: RCA TV, M#:G31129WK, C#:CTC168/169
- From: "Jerry" <geiting@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 18 May 2002 23:48:36 -0400
Matt,
This sounds normal. Most RCA sets collapse vertical deflection during
degaussing. It is supposed to make the degaussing more effective. I am
assuming the bright picture was a leaky luma bias transistor, I don't recall
the symbol number, but it's in the video output circuit, a small PNP
transistor. If so, check for intermittent picture tube shorts, which can
cause this transistor to fail.
Jerry Eiting geiting@xxxxxxxxxx
Christians Electronic Service
Piqua, Ohio
----- Original Message -----
From: "matt sherer" <m.sheer@xxxxxxxxxxxxx>
To: "techassist" <techassist@xxxxxxxxxxxxx>
Sent: Saturday, May 18, 2002 6:13 PM
Subject: [TechAssist] RCA TV, M#:G31129WK, C#:CTC168/169
|
| Unit came in with bright pic and retrace line problem. Also noticed a
| vertical problem. I fixed the bright screen w/ retrace lines but am still
| see a vertical problem. When power button is pushed, about a 1" line in
| middle of screen comes up, relay kicks on and set comes up fine. Set
plays
| fine as well. Any help appreciated.
| Gear Guy
| Electronic repair
| A/V systems design, maintenance and installation
| AMX programming
| Matt Sherer, CET
| 1411 Honeysuckle Lane
| Champaign, IL 61821
| (217)356-9479
|
|
|
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