[TechAssist] Re: Help identifing audio section
- From: "tvservice" <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 24 Jan 2005 17:37:43 -0600
I have had the output IC's intermittent U1901 and U1902 #216806/TDA2052
also replace input coupling caps c1901 and c1902 they are very small 1mfd
caps.
I just fixed my sister in-laws ctc169 for intermittent volume level and no
volume by replacing U1502 #176226 the electronic volume/balance/tone IC.
HTH
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
----- Original Message -----
From: "Larry Poffen" <lpoffen@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, January 24, 2005 2:03 PM
Subject: [TechAssist] Help identifing audio section
> I have a RCA Model P52750Wk PTK 169PABF Chassis CTC169PA CC that I
have
> in for no audio. I can`t seem to identify what audio section I need to
use
> to troubleshoot. I think this is a family 3 or 4 analog 10 watt amp.
The
> problem is no audio from any source. Customer said it was getting harder
to
> get the audio to come on & then there was none. I have ckd voltages at
> U1901 & U1902 & all seem ok. I found out I can unsolder either of the
ic`s
> pin 3 & get audio back. These sets are very hard to follow even with the
> proper print. I need to know the supplement for the ctc169pa audio
print.
> thanks Larry
>
> Larrys TV & Computer Service
> Broken Arrow OK 74011
> phone 918-455-1041
> Fax 918-451-4485
> e-mail lpoffen@xxxxxxx
>
>
>
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