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JVC VCR SR-9168U no cassette load/eject

W

Wild Bill

Jan 1, 1970
0
I picked up this gem at a recent hamfest, only because it's a fairly late
model time lapse recorder, and the user guide was included.

The function that doesn't work is cassette load/eject. Everything else
appears to be functioning properly after I load the cassette manually (lots
of pulley turning).
The loading motor runs for just an instant (maybe 1/2 second) as a cassette
is inserted. The display shows a E-07 (problem with eject operation) error,
when the unit fails to eject (followed by turning the power off, auto
shutdown).

I'm thinking I'll need to do a tear-down to get the mode switch out to check
it out-of-machine since I don't have a service manual.
If anyone has any other suggestions, I'd be happy to hear them.. I haven't
been doing any VCR servicing for several years.
The only other suspicion (WAG) I've considered is that the PSU isn't
providing adequate current for the loading motor, and it's sensed, then that
function is being canceled?

There is no FCC ID number, so I wouldn't know what consumer model it might
be similar to. It appears to be a 1999 or 2000 model.
I assume the mechanical transport is nearly identical to consumer models
within a couple of years of manufacture.
The main board is most certainly different than a consumer model, since it
has a rear connector block for alarms and other features, and a socket for
an optional RS232C interface module.

I was hoping that it was a fairly easy fix, as we frequently do. Another
repair tech and I used to joke about most customers assumptions often saying
"it's probably just something simple".

I've checked that the end sensors are operational, and checked all of the
labeled supply voltage test points, and all appear to be good. The internal
backup battery voltage is good. The menu settings are available, and can be
reset normally.
The unit plays pre-recorded tape, and the run FF REW functions operate
normally.

Thanks
Cheers
WB
 

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