[TechAssist] Re: JVC 31" TV: AV31BP6 plug in, one click,dead. low +9V reg output IC982

  • From: "Terry J Hutchison" <sony1@xxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Fri, 1 Oct 2004 21:58:42 -0400

If you pull the output leg of the 9vdc regulator does the input volts
return to normal?  Or try desoldering the input side of the regulator and
test the pad to see if the normal 12vdc (I think)co mes back. If it does
odds are the regulator is faulty.   Terry


> [Original Message]
> From: S. Pasher <spasher@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Date: 10/1/2004 9:20:43 PM
> Subject: [TechAssist] Re: JVC 31" TV: AV31BP6  plug in, one click,dead.
low +9V reg output IC982
>
> Phil I don't have the 31 but I do have 27BP6. I will send it to your email
> address. Hope this helps.
> Buck Pasher
> Buck's TV
> Gander Newfoundland
> Canada
> 709-256-7738 (Fax & Phone)
>
>
>
> ----- Original Message ----- 
> From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, October 01, 2004 6:51 PM
> Subject: [TechAssist] JVC 31" TV: AV31BP6 plug in, one click,dead. low +9V
> reg output IC982
>
>
> > No outward signs of any open or shorted parts. Has 5V stby at I/R det,
> > other stby volts there.
> >  I noticed the three leg 9V. regulator (like a 7809) IC982  has a low
> > input, and low output at about 8.5 VDC out.
> > With my external bench power supply I clipped it across the output of
> > IC982 and pumped 9 volts there. The set came to life.
> > I cannot seem to back trace the input  source path to this IC. Need
> > partial schemo of the IC982 input, or a verbal description, please. Need
> > the voltage source of this IC.
> > Thanks,
> > Phil Bader
> >
> > -- 
> >
> > Philip Bader
> > Jan Phyl TV Inc. (estab. 1976)
> > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > Fax (863) 299-8821
> > email: tjanphyl@xxxxxxxxxxxxxxx
> >
> >
> >
> >
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