[TechAssist] Re: Panasonic 20" TVCR PV-M2046 dead,now VCR shuts down]
- From: "J Silverman" <greentron@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 24 Sep 2002 17:43:12 -0400
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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