[Jukebox-list] my Wurlitzer 3600 (3610) magazine motor literally went up in flames

[Jay Hennigan]

clarence3 at gmail.com wrote:

> The record magazine carousel won't turn, even when I move the SCAN/LOAD/RUN
> switch to SCAN, so I tried testing the magazine motor to see if it was
> good.  Long story short, I hooked the motor up to 120V AC and I got a nice
> little fire.  :(
>
> Was it indeed faulty or is it incapable of taking 120v AC directly?
> 
>  Can someone provide some info on the motor or a replacement source?

It is (was) probably a 24VAC motor.  Most jukebox control circuitry is 
24 volts.  Only the turntable motor is typically 120VAC.  Someone on the 
list may have a junker with a similar motor.  Alternatively, you may be 
able to unwind the coil and count the turns, rewind a new coil.

That style of shaded-pole motor is common in 120VAC applications.  I've 
seen them in refrigerator fans, barbecue spits, etc.  24-volt versions 
are not as common. The bracketry and gearbox are likely to be unique to 
that application but the basic coil and laminated core assembly should 
be relatively common.

You'll want to get a service manual, a few people on the list sell 
reprints.  While you're searching for a motor, test all of the little 
red/black lever-action microswitches.  You'll likely find several bad 
ones.  Resistance should go to a small fraction of an ohm simultaneously 
with the click of the over-center spring, and stay there.  A flaky 
microswitch (or several) is likely the cause of the magazine failing to 
spin.

As a rule, testing random components by applying line voltage and 
observing the result is not a good idea.  :-)

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
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