[TechAssist] Re: Mitsubishi CS-2651R No sound
- From: "Shoreline Electronics" <jstielau@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 13 Oct 2001 10:18:25 -0400
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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