[TechAssist] Re: Panasonic 20" TVCR PV-M2046 dead,now VCR shuts down]
- From: rogerfixit@xxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 25 Sep 2002 01:44:04 -0400
Had a 2048 that took both the Audio micro and servo micro so I ditto
Jerry's response.
Roger G.
Mr. Fix-It Harrisburg, PA WebSite-
http://mrfixit.netfirms.com
rogerfixit@xxxxxxxx (alternate - rogerfixit@xxxxxxxxxxxxx )
FAX 801-705-3748 ; Tel: 717-763-7098 (shop) 717-652-1703(home)
On Tue, 24 Sep 2002 17:43:12 -0400 "J Silverman"
<greentron@xxxxxxxxxxxxxxxx> writes:
>
> Dont see that specific manual, but I recall with that symptom on the
> units
> made in the mid 1990s, checking the PG/FG output pin on the cylinder
> driver
> IC would show very low DC voltage with no signal and measure low
> ohms to
> ground. always turned out to be the Syscon/servo IC.
> Jerry Silverman
> Greentron Inc
> 4 Newland Ave
> Greenville SC 29609
> 864 232 3889
> Fax 271 2080
> mailto:greentron@xxxxxxx
> ----- Original Message -----
> From: "Phil Bader" <philbad@xxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, September 24, 2002 12:40 PM
> Subject: [TechAssist] Panasonic 20" TVCR PV-M2046 dead,now VCR shuts
> down]
>
>
> >
> >
> >
> > Storm. Dead. Found the usual two transistors shorted: Q801 relay
> driver
> > (2SC945) and the "excess current protector" Q523 (2SA564A).
> Replaced
> > both,now powers on,channels tune,TV section seems fixed. Insert a
> tape
> > and immediately hear a fast whirring sound increasing in
> speed,then a
> > flash of snow,and VCR shuts down. Push any VCR related button and
> > ignores it. No eject. Turn power off then on and push eject at
> once,
> > will eject tape. I think it sounds like the drum is run-away speed
> > spinning.
> > 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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Roger G.
Mr. Fix-It Harrisburg, PA WebSite-
http://mrfixit.netfirms.com
rogerfixit@xxxxxxxx (alternate - rogerfixit@xxxxxxxxxxxxx )
FAX 801-705-3748 ; Tel: 717-763-7098 (shop) 717-652-1703(home)
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