Teac TV ctm687 tuner problem.

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#524

From: alitonto
Date: Sun, 17 Jul 2005 12:17

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I am repairing this Teac TV ctm687 which has a grainy picture on all
channels; even when using the vcr (however the tapes play a normal
picture.
Hence I suspect the tuner (oscar 2900kkc) for which I measure 7.87
volts at the AGC pin which goes to i/c TDA8305A pin 5 which according
to TV schematics should only have 3.9 volts.
My B+ at the tuner is 12.11 and I wonder if this is the correct supply
voltage to the tuner.
Thanks in advance.
Al

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From: "alitonto" <alitonto@hotmail.com>
Newsgroups: sci.electronics.repair,aus.electronics
Subject: Teac TV ctm687 tuner problem.
Date: 17 Jul 2005 05:17:30 -0700
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