[tvservice] Re: RCA ctc177bh2 no sound..
- From: "Cape South Coast Computers" <csccomp@xxxxxxxx>
- To: <tvservice@xxxxxxxxxxxxx>
- Date: Fri, 5 Nov 2004 09:49:19 +0200
Have you scoped the IF audio into the signal processor??, have you tried the
finger test on the audio amp to see if you get a hum coming from the
speakers to prove that amp stage is working?AFter these you can go the
complicated route of fault finding.
Jan
-----Original Message-----
From: tvservice-bounce@xxxxxxxxxxxxx
[mailto:tvservice-bounce@xxxxxxxxxxxxx]On Behalf Of Sam Barnum
Sent: 04 November 2004 10:51 PM
To: tvservice@xxxxxxxxxxxxx
Subject: [tvservice] RCA ctc177bh2 no sound..
Hi all,
I have an RCA CTC177BH2 with no sound, not even a click or hiss when
the TV is turned on. Video is good from both the tuner and video-in (no
sound out with audio-in from VCR either. I had the TV to fix a cold
solder joint under the RF shield. While I had the soldering iron in my
hand I also reflowed a number of joints on the LA7610 (signal processor)
and LA7765 (stereo processor), I didn't touch the TDA7263(Audio AMP). I
don't know if the sound was working before hand. However the I have
confirmed that the speakers do work. Any thought on where I should
look first?
LA7610
LA7765
TDA7263
EEPROM
Other??
Does anyone have a data sheet for the LA7610?
Thanks, Sam
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