On 2019/12/17 1:40 a.m., Paolone wrote:
Hi to all of you!

I have a problem with my Rock-ola 484 juke box that I have restored last Christmas.

Untill yesterday it played ok.

Today I have switch it on and i have played a record. All right!
When I have played the second record the 484 stops itself after 5 seconds of playing.

On the power distribution assembly (52405A), the “play relè” discharge itself and the “32 VDC led” switches off.

The “overload mechanism light” is still off.

If i push the “Circuit Breakers mechanism red button” the 484 continues to play the record for another 5 seconds and then it stops again, on the power distribution assembly (52405A), the “play relè” discharge itself and the “32 VDC led” switches off, and the “overload mechanism light” is still off.

I tried to remove the neon lights but it's still the same

Please can you help me?
What can be?

Thanks in advance

Paolo


Hi Paolo,

Check to see if the gripper motor is seized. Can you turn the knurled
knob at the bottom easily? If should turn in both directions - in one
direction it will only turn a few revolutions before it stops (jams),
turning in the other direction will start the picking up of the record
process... I expect that the motor won't turn in either direction as the
gears have jammed. If you can't free it with your fingers then loossen
the motor mounting bolts and let it slide down enough to release the
jam. Put the motor back and tighten the securing bolts once the jam is
cleared up.

I suspect that the microswitch controlling the gripper motor on the cam
switch assembly is not working correctly and thus the gripper motor
remains energized when the record is placed on the turntable.

A simple test is to remove one wire to the gripper motor and then reset
the circuit breaker. If the record now plays to the end without popping
the breaker then check the gripper motor control switches.

Good luck!

John :-#)#

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