[TechAssist] Re: Bell & Howel (Zenith) MWL2773s 9-1330-1 no audio.

  • From: "Bob@Bobs tv" <woodman1@xxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 19 Mar 2004 15:02:22 -0500

Peter,
        Only those big sheets...Audio Output chip IC801 221-578...VCC+15V
Pin 9.. Pin 3 {3.3V} audio mute to collector mute transistor Q800..  VCC
from CR3436 SMPS no resistor but FX3403 fuse...
Bob,

Bobs TV   Worcester, ma

woodman1@xxxxxxxx

Main  508-853-1482
Fax    508-853-1480
----- Original Message ----- 
From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, March 19, 2004 2:31 PM
Subject: [TechAssist] Bell & Howel (Zenith) MWL2773s 9-1330-1 no audio.


> Bell & Howel (Just another repackaged Zenith)
> MWL2773S
> Serv 12699-02
> Chassis 9-1330-1
>
>                  No Audio. Customer claims to have pluged speaker into
> subwoofer plug in back of set. now audio completly disabled, not even
level
> bar on osd. anyone have a print or seen this one before. ( I'm suspicious
> they may have taken out the output IC)
>
>
> Peter Oliver
> Tucson Radio TV
>
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