[TechAssist] Re: [TechAssist]Re: Sansui A-40 Amp No Audio Output!!
- From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 10 Sep 2002 17:09:11 -0400
Yes I have the collector voltages looking good on all the outputs. PNP
(A771) -30Volts. NPN (C1986) +30volts.
(A 771) E..038, B - .289, C - 29.5.
(C 1986) E.040, B.317, C + 29.5
(D 438) E .313, B.909, C 29.4 Pre Amp transistors.
thanks ,
Bruce.
----- Original Message -----
From: "Gary Huff" <cctv-vcr@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, September 09, 2002 7:04 PM
Subject: [TechAssist] [TechAssist]Re: Sansui A-40 Amp No Audio Output!!
>
> Bruce, do you have + & - 30 volts at the respective NPN & PNP output
> collectors? What are the voltages at the base & emitter?
> Gary
> Carson City TV-VCR
> 2164 E Hwy 50
> Carson City, NV 89701
> (775)887-9089
> fax (775)887-1067
> ----- Original Message -----
> From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
> To: "TechAssist" <techassist@xxxxxxxxxxxxx>
> Sent: Monday, September 09, 2002 11:39 AM
> Subject: [TechAssist] Sansui A-40 Amp No Audio Output!!
>
>
> >
> > Older Amp, does any one have a" print" ,or one that is close to this
unit.
> > Outputs are OK. Audio to the outputs OK. 30 volts at the collector of
> > outputs. Possible bias problem. Any help appreciated.
> >
> > thanks
> > Bruce
> >
> > B&T Electronics
> > 139 Margaret St
> > Sarnia Ontario
> > Canada
> > N7T 2Y3
> > (519) 344-1850
> > btied@xxxxxxxxxxxx
> >
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