[Jukebox-list] [ukebox-list] Rockola 448 play problem

[david]

Thanks everyone, your help is much appreciated.

Turns out to be a seized gripper motor, have now removed it and will strip
tonight.

It also appears that my machine does have a contact breaker after all! Right
in front of my nose, cannot believe I couldn’t see it.

Regards
David

David Bowater
www.bwds-online.com
www.bowater.org.uk


-----Original Message-----
From: jukebox-list-bounces at lists.netlojix.com
[mailto:jukebox-list-bounces at lists.netlojix.com] On Behalf Of Ron Rich
Sent: 07 February 2009 04:00
To: Jukebox mailing list
Subject: RE: [Jukebox-list] [ukebox-list] Rockola 448 play problem


David,
Do you know if the TT motor quit before or after the gripper placed the
record on it? You either have a 1-6/10 amp "DC" fuse (may be marked "Mech"),
or CB on that unit--check it. If the gripper motor is "truly stuck" (can't
move it by hand-in either direction), you will need to loosen it, prior to
changing the fuse/pushing the CB, as it will just blow again. Loosen the
three screws holding the motor, and back it away from the gear. Try turning
the motor by hand now. Try turning the large gear now. The one that won't
move, needs attention. Try replacing the fuse/pussing the CB with the motor
loose, listen/look for the pin reset coil operation, and see if the TT motor
now is operating.  Ron Rich

--- On Fri, 2/6/09, david <dvb at bowater.org.uk> wrote:

From: david <dvb at bowater.org.uk>
Subject: RE: [Jukebox-list] [ukebox-list] Rockola 448 play problem
To: pinball at telus.net, "'Jukebox mailing list'"
<jukebox-list at lists.netlojix.com>
Date: Friday, February 6, 2009, 6:11 PM

Thanks everyone

I will check all fuses (not aware I have any circuit breakers) but maybe the
"dead spot" idea is right, this would explain previous problems where I had
to manually  move the gripper shaft. Unfortunately this time it seems to be
truly stuck.

Thanks
David

David Bowater
www.bwds-online.com
www.bowater.org.uk


-----Original Message-----
From: jukebox-list-bounces at lists.netlojix.com
[mailto:jukebox-list-bounces at lists.netlojix.com] On Behalf Of John Robertson
Sent: 07 February 2009 00:39
To: Jukebox mailing list
Subject: Re: [Jukebox-list] [ukebox-list] Rockola 448 play problem


david wrote:
> Hello everyone
>  
> I did not think I would post so soon..
>  
> My juke was playing quite happily for several records and then just
> stopped. The arm was placed on the lead in groove, amplifier mute off, 
> but the turntable is not moving, everything just seemed to stop. Tried 
> to lift the tonearm and move it to the record end position, but no 
> effect.  pressed the record reject button, no effect. the whole 
> mechanism seems to have stopped.
>  
> Any ideas as to where I should start?
> Many thanks
> David
>  
>  

Hi David,

Sounds like a blown fuse or popped circuit breaker. What you are 
describing - moving the tone arm so the mute activates - but the gripper 
motor does not start, usually means a power failure to the gripper 
motor. It could be on a dead spot - one open commutator winding inside 
the motor, this is easy to check by simply turning the motor shaft a bit 
and seeing if it will now cancel.

If it does cancel, then you need to service your motor.

If it does not, then you need to check the fuses and circuit breakers to 
find the failure, if all are good then check if the gripper motor is 
dead (broken wire, worn out brushes, etc.) or a break in the circuit 
somewhere else - service manual and schematics needed at this point.

John :-#)#

-- 
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
                 www.flippers.com 
"Old pinballers never die, they just flip out"

_______________________________________________
Jukebox-list mailing list
Jukebox-list at lists.netlojix.com
http://lists.netlojix.com/mailman/listinfo/jukebox-list

_______________________________________________
Jukebox-list mailing list
Jukebox-list at lists.netlojix.com
http://lists.netlojix.com/mailman/listinfo/jukebox-list



      
_______________________________________________
Jukebox-list mailing list
Jukebox-list at lists.netlojix.com
http://lists.netlojix.com/mailman/listinfo/jukebox-list