[TechAssist] Re: RCA F19436, chassis TX809B. No audio
- From: "Webster TV" <webstertv@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 10 Aug 2004 10:11:41 -0500
Ken,
I don't have the exact schematic, but have one for a # TX81. Does
your set have IS01 as the audio amp(output)IC? If it does pin 5 is the VCC
pin, should be 14.5v. I had this problem with a #TX82, and the problem was a
open resistor in the 16v line, RP54(.27ohm), between the flyback and diode
DP21.
HTH
Dan Webster
Webster's TV
Shullsburg, Wi.
----- Original Message -----
From: <gulftech@xxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, August 09, 2004 4:37 PM
Subject: [TechAssist] RCA F19436, chassis TX809B. No audio
> Techs,
>
> This set has no audio. Signal is present at the output IC, but the chip
> is missing voltage to it. Can someone please tell me the B+ input pin
> and it's source. A print of the area would be helpful, but I'll be happy
> for any info on it.
>
> Thanks,
>
>
> Ken Smith
> Gulf Technical Services
> 3034 Gulf Breeze Parkway
> Gulf Breeze, FL 32563
> 850-934-8324 (Voice) 850-932-0819 (Fax)
>
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