[TechAssist] Re: [TechAssist]FIXED Re: RCA CTC175A chassis, F20601SE,bad connection in tuner?
- From: Kevin <kevintv@xxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 05 Mar 2004 15:29:17 -0800
I suppose you guys want to know what the fix was. Sorry about that, I
hit the send key before I typed the message.
Thanks to Robert I investigated the IF amp circuit where the IF leaves
the tuner and goes to the Saw filter. The fix was R7602, an 820 ohm SMR
that had a bad connection on one side. This is the first time I have
ever seen a bad connection on a SM component. No fun! Too hard to see!
TGIF!
Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of
tvservice@xxxxxxxxxxxxx
Sent: Friday, March 05, 2004 2:13 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: RCA CTC175A chassis, F20601SE, bad connection
in tuner?
Solder a jumper wire from where the IF signal exits the tuner to the SAW
filter, then try flexing the board.
I had 2 of these with tiny cracks could not see the crack
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
Dallas, TX
----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
Sent: Friday, March 05, 2004 1:36 PM
Subject: [TechAssist] RCA CTC175A chassis, F20601SE, bad connection in
tuner?
> This set is driving me crazy. When I flex the board, or push on
certain
> areas around the tuner and T-chip, the picture goes from perfect to
very
> grainy. The bad connection appears to "move" as pushing on the same
> spot does not always fix or create the problem. I tried flexing the
> board in the dark and looking for a flash of light to indicate where
the
> bad connection is. I also went over the board with a brush with no
> success. Except for soldering the whole board including surface mount
> components, what else can I do? TIA
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
>
>
>
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