[TechAssist] Re: Orion-TVCR mod#tvcr1321,blue screen

  • From: "al m" <ampm@xxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 17 May 2002 07:56:31 -0400

Don did you try putting in an IF signal after the tuner, and after the Saw
filter.
al marquardt
ampm@xxxxxxx


----- Original Message -----
From: "Don Hartigan" <hartstv@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, May 17, 2002 6:31 AM
Subject: [TechAssist] Orion-TVCR mod#tvcr1321,blue screen


> This unit has blue screen when rf connected to cable i/p.VCR has good
picture/sound on playback.A/V inputs ok.I subbed out the tuner,no
help,&checked voltages;BT=30vdc,BP=5vdc,BM=9vdc,AGC line is sitting at
7.5vdc.Unit will sometimes show a very snowy,no sound picture,which cannot
be changed by trying to channel up/down,#'s on screen will change.Unit will
auto-program.This uses a LA7583=IC6001 in the tuner cct,as per data sheet
it's the VIF/SIF control ic,voltages to it are ok.Have checked my parts
sources & they don't list it.Does anyone have one or know where I can get
it.It ''MAY'' be my problem.All i/p's welcome on this little
13''..TIA..Don.......
> HARTS-TVCR''ASC''
> 9-Robert St.,Oromocto,NewBrunswick,CAN
> Tel#506-357-9785Fax#506-357-6010
>
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