[TechAssist] Re: Mitsubishi CS-2651R No sound
- From: Mike Barnett <passthecash@xxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 13 Oct 2001 10:06:25 -0700 (PDT)
Jeff, no external out on this set, even so, ic3a0 i believe should still
have some kind of signal on pins 12,18 or 20? there is none.
and ic 101 pin 24=11vdc no audio on that ic anywere either.
any suggestions?
Mike
On Sat, 13 Oct 2001 10:18:25 -0400, techassist@xxxxxxxxxxxxx wrote:
>
> Do you have audio on the EXT outputs? if so the possible Defective
Ic3a0.
>
> or
>
> If Ic101 pin#24 = 0v, Replace C113 (470uf 16v)
>
> Jeff Stielau
> Shoreline Electronics Repair
> 125 Beechtree Lane
> Westbrook,CT 06498
> 860-399-1861 Voice
> 860-664-3535 Fax
> jstielau@xxxxxxxx
>
> ----- Original Message -----
> From: "Mike Barnett" <passthecash@xxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, October 13, 2001 9:57 AM
> Subject: [TechAssist] Mitsubishi CS-2651R No sound
>
>
> >
> > Hi guys, I have this mitsubishi model CS-2651R no audio, i dont have a
> print
> > for this but have checked sound board and cant seem to find a good
audio
> > sygnal. it seems like the audio is stuck on mute. Still, cant seem to
find
> a
> > good audio waveform even on the main board. On the sound
board(mitsubishi
> > pt#930B15901) at ic3A2(TA7630P/NTE1576)
> > pin 2 and 16 are audio input, no signal. i know the amp curcuit is
working
> > by bypassing this ic and injecting a 10khz. sygnal to amp, speakers
work
> > fine and has audio. could this ic be bad? Also there is an ic on the
main
> > board ic101(la7520/nte1728) and has audio driver curcuit in it and also
> > controls muting. has anyone seen this go bad.
> > is there something i'm missing or should i change these ic's.
> > Any help?
> >
> > Thanks much in advance,
> > Mike
> >
> >
> >
> > Get It Fixed At
> > Rochester Electronics
> > 630 West Ridge Rd.
> > Rochester, NY 14615
> > 716.663.6870
> > www.RochesterElectronicsRepair.com
> >
> >
> >
> >
> >
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Get It Fixed At
Rochester Electronics
630 West Ridge Rd.
Rochester, NY 14615
716.663.6870
www.RochesterElectronicsRepair.com
_______________________________________________________
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