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"Mark D. Zacharias" wrote in
:
"Vincent Poy" wrote in message
.154...
"Mark D. Zacharias" wrote in
:
"Vincent Poy" wrote in message
.154...
Which 2 or 3 small screws are you referring to? I have the bottom
off now and it pretty much looks like the pics he
http://www.studiosoundelectronics.com/mbk-42.htm
Thanks!
Cheers,
Vince
"JVC Dude" wrote in
:
Ok I've just researched the HRS8000. we never had that here. Its
the same mech as our HRD530 but with SVHS from 1988 ish
Forget the stuff about the sensors, thats on much more modern
stuff like our HRS7000/8600 the nearest model numbers.
Unplug it, take the bottom off, and carefully tighten the 2 or 3
small screws fastening the green pcb's onto the bottom of the
mech, it will probably be a loose one causing a bad earth. and
perhaps your symptoms. If not then you could have numerous other
things like a shorting pole on the capstan motor etc.
Also as reported by Mark, the membrane switches can be
troublesome, but usually just inactive buttons. they gave most
trouble when juices were spilt into them!
Since this mech was used in Fergusons-UK (don't know what brand
US have for that- Thomson?) and Toshibas there should be many
time served VCR tech out there with experience so it doesn't
have to be a JVC seervice centre necessarily.
Hope this helps
AW
"Vincent Poy" wrote in message
.154...
I didn't realize you were in Europe but from what you're
saying, it seems like it doesn't really need any parts replaced
but rather just labor. There is a place locally that charges
$US35 + labor but I know they are
n't
factory authorized and I wonder if being factory authorized
will make a difference or not. Where exactly is the right hand
sensor located or what does it look like?
Since you might be familar with this, I had a Mitsubishi HS-U70
SVHS VCR that failed a few years back and it had like missing
audio as well as missing color and the problem seemed to have
been bad capacitors but when
I
shipped the thing to be repaired, it was fixed but shipping
caused the Control Audio Head to not be aligned and the guy I
think readjusted it.
It
will play any tapes it records but when I take the tape to the
JVC HR- S8000U, it will only show scrolling black & white with
distorted audio and also, any tape that the Mitsubishi recorded
on can't be re-recorded with the JVC, is this just a alignment
problem as the guy that fixed it didn't have the factory jig
for proper alignment.
Cheers,
Vince
"JVC Dude" wrote in
:
I would suspect that the soldering under the right hand
sensor may be dry jointed .
If you aren't familiar with repairing equipment then don't
try to cure this yourself, since it involves stripping the
deck out, then removing the main board (although some models
access from underneath may be possible.) Its not easy!! Also
the mains psu capacitor can retain approx 380Volts- just
waiting to shake hands with anyone who doesn't know wheres
safe and wheres not!
Your supposition is correct re the FF button it would FF when
turned on or if 2 buttons are effectively pressed, then other
odd symptoms may occur.
Remember as I said these units are very sensitive to light.
There was a mod to cover the right sensor (a slim 2" black
LED type of thing standing centre right of the mechanism)-
its use is primarily to detect if the tape is at the
beginning and then shuttle forward off it.
As to what you should pay, I would think £30-£40 to cover an
hours time would be typical- however it may not be this
sensor and only an engineer with the top off, probing around
could really correctly diagnose this.
Andrew
"Vincent Poy" wrote in message
.154...
This VCR doesn't have a jog wheel. If if was the FF button
then wouldn't it FF even in the stop position?
Cheers,
Vince
"Mark D. Zacharias" wrote in
:
Sounds to me like the FF button or jog wheel may have a
problem. Seen things like this before.
Mark Z.
"Vincent Poy" wrote in
message
.154...
Vincent Poy wrote in
. 154:
"JVC dude" wrote in
t:
Hi Vincent,
Is there a lot of light getting in through the
top/side? these decks have optic sensors and can be
tripped into doing strange modes with light otherwise
sounds like a faulty switch contact or something
similar. when you say play button do you mean on the
set or the remote. ~Its possible the remote if
someting was spilt into it may do that. if its not
related to the remote then there may be
a faulty switch on the front panel. its certainly not
a common problem. I presume you've unplugged and
plugged in again to reset the machine!
Other possible causes, dirty mode switch contacts,
or poss a capstan motor control fault , but that would
be very rare. its more likely to be one of the above.
hope this helps
AW
Hi AW:
Right now, there has to be a lot of light as I was
trying to see if things are working with the cover off
but originally, the cover was on when the problem
happened. What is weird is that randomly, it will
decide to play a tape correctly. As for the play
button, I'm talking about the button on the front panel
and not the remote as I haven't used my remote in a few
years. I've already did the plug/unplug a few times
just to make sure that wasn't the problem. I'm just
trying to figure out will this be a expensive repair
since I see a lot of repairers that aren't factory
authorized but don't most problems need a
service manual or will equipment tell them what is
wrong? Since it seems lots of places have a fixed labor
rate but then you have to pay for parts and I hope they
don't randomly change out parts.
Cheers,
Vince
I just put the cover back on and the first play of the
tape plays normally but then the next play, it does the
same Play + Fast Forward mode again.
Cheers,
Vince
They definitely had some problems with bad grounding on this
chassis, the small screws on the bottom PC board(s). This would
usually do things like trying to activate the tape loading when no
tape was in the carriage, and make the "Tape In" indicator light up
in the display, and initiate Rewind if there was a tape in the
mech.
Mark Z.
Got a question... After getting the metal cover off the bottom, how
does one get the black plastic that is part of the chassis as it
seems to cover a lot of the parts.
Cheers,
Vince
As I recall, the entire deck is loosened from the top side and tilted
up and out a bit. No fun. 4 or 5 large screws hold the deck in place.
That makes sense. I thought the bottom cover was supposed to expose a lot
of the bottom but it doesn't.
Cheers,
Vince
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