[TechAssist] second post RCA F32730SB CTC179CM chassis No Audio
- From: Rochester Electronics <pasthecash@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 25 Jun 2002 08:09:49 -0700 (PDT)
--- Rochester Electronics <pasthecash@xxxxxxxxx> wrote:
>
>
> Hi Guys, Need some help with this one, RCA CTC179cm
> chassis
> is in a F32730SB. Set came in with NO AUDIO. scoped the
> input lines to the output device (TDA7263M pins 1,2 &
> 4,5)
> inputs are good. No output on pins 8 & 10. pin 9 has
> about
> 27 volts for vs. lifting pin 3 (SVR/muting) restors audio
> but at full volume. Pressing vol up/down changes level
> but
> only when holding down button.
> I have replaced the output IC and resoldered everyting
> this
> has note helped. I have some notes that recomend changing
> the e-prom and/or U1404 and U1405. I have not tried to
> reset the eprom because i dont have CHIPPER CHECKER.
> SOME QUESTIONS??? 1) Is it absolutly necessary to have
> chipper checker to complete this repair? 2) does the
> eprom
> come pre-programmed? 3)how much does chipper checker
> cost?
>
> Please, any help with this one would realy be
> appreciated.
>
> TIA,
> Mike Barnett
>
> =====
> Mike
> Rochester Electronics
> 716-663-6870
> www.RochesterElectronicsRepair.com
>
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=====
Mike
Rochester Electronics
716-663-6870
www.RochesterElectronicsRepair.com
__________________________________________________
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