[TechAssist] Re: Sony KV32FS10, IC650 main reg shorted,still shuts down

  • From: Phil Bader <philbad@xxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 12 Nov 2002 09:55:16 -0500

Gary, see my "fix" message. You were right on! Last night we found the
Sony dist. sent a 5v version in error.A "7812" fixed it.We caught it
last nite.
Phil Bader

Gary McCartney wrote:
> 
> Perhaps the new part was labelled wrong and it is really a 5V regulator?
> If the pinouts are the same as a 7812, why not try the 7812 just as a
> test to verify that is the problem or not. The original part might be
> rated higher in amps than a 7812, so it might be best to get another
> original if needed for permanent install.
> 
> ******* ATTENTION, PLEASE ********
> 
> I have a new email address. Please
> send all email in the future to:
> 
> "Gary McCartney" <gary@xxxxxxxxxxx>
> 
> Thanks.
> 
> Gary McCartney
> 
> McCartney Electronics
> 7134 Fife Rd, RR 7
> Guelph Ontario Canada N1H 6J4
> Fax: (519)821-1530
> 
> Phil Bader wrote:
> >
> > Was dead.Ordered the manual. The 12V three-terminal v. reg IC650 was
> > dead shorted (BA12T on part) looked like an LM7812. Ordered and
> > installed Sony original.The output pin on it is only 4.9 volts.(input is
> > about 13.5 VDC)The tech lifted virtually all the 12v feeds "down stream"
> > he could find and still 4.9VDC. IC650 has low output, but is cool,so
> > not  pulling excess current. Baffeled as to why. The 9V reg IC641 has 9V
> > out. The +135 V source is OK.
> > It died in the "on" state, so tries to come on when plugged in. Get a
> > burst of  high voltage,then shut down.
> > Customer is, of course "less than understanding"...
> > I am assisting another local shop.
> > He called Fulton Radio for assist,but drew a blank. Please help if
> > possible.
> > Phil Bader
> > --
> > Philip Bader
> > Jan Phyl TV Inc. (estab. 1976)
> > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > Fax (863) 299-8821
> > email: philbad@xxxxxxxxxx
> >
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-- 
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821      
email: philbad@xxxxxxxxxx

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