Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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  #1   Report Post  
Vincent Poy
 
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Default Help with JVC HR-S8000U SuperVHS VCR

Greetings all:

I have owned this VCR since late 1988 but have really only used it
during the first 6 years and then it was left just plugged in until
using it daily for the past few months. I have only used VHS tapes in
the VCR and it still records correctly but there is a problem with
playback. What happens is that when Play is pressed, it will show
SVHS and then the Digital light for Digital Features comes on and then
the Front Panel will display Play and Fast Forward with the tape
playing at the Play and Fast Forward speed. Holding down Play button
while this occurs will make it play normally and the Digital light
will go off but as soon as I lift my finger off the play button, the
Play + Fast Forward mode will return. Pressing pause will pause for
1/2 second and then do the Play + Fast Forward mode. I cleaned the
tape path including the Audio Control Head and also replaced the idler
and idler tire as the idler tire did have a gap but it didn't make a
difference even when using a VHS see thru test-jig. Anyone knows what
is wrong and will this cost a lot in parts to fix? Will non-JVC
authorized servicers be able to fix this? Thanks for any help in
advance.

Cheers,
Vince
  #2   Report Post  
JVC dude
 
Posts: n/a
Default

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



  #3   Report Post  
Vincent Poy
 
Posts: n/a
Default

"JVC dude" wrote in
:

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


  #4   Report Post  
Vincent Poy
 
Posts: n/a
Default

Vincent Poy wrote in
. 154:

"JVC dude" wrote in
:

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

  #5   Report Post  
Mark D. Zacharias
 
Posts: n/a
Default


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
:

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





  #6   Report Post  
Mark D. Zacharias
 
Posts: n/a
Default


P.S.

JVC had lots of problems with those blister-switch and flat key-matrix
panels in similar models.


Mark Z.


"Mark D. Zacharias" wrote in message
...

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
:

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





  #7   Report Post  
Vincent Poy
 
Posts: n/a
Default

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
:

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





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