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

  • From: "J Silverman" <greentron@xxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 17 May 2002 15:53:40 -0400

Had 6 of those with that symptom. Two had high resistance in the switch
contacts built into the rear A/V jacks. Three had a 3 inch long hairline
crack at the rear of the tuner. One - could not fix! Changed IF IC, saw
filter, demod coil, tuner, tv micro, gave up. Suspect a defective chip cap
or pcb leakage. Chip resistors all checked OK. Whoe board with all
components and operation board only cost about $50 from Fox. Took hours to
fix the crack on first one. Decided it was cheaper to replace the whole
board on the other cracked ones. I still have the cracked boards for parts
if anyone needs some. Some parts already used.
Jerry Silverman
Greentron Inc
4 Newland Ave
Greenville SC 29609
864 232 3889
Fax 271 2080
mailto:greentron@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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