wurlitzer 2900 problems

hi gang,
i have a couple of problems going on with my 2900 and id like some opinons on their causes
#1 i cannot select a record using the control panel. i can manually trip the record to play by tripping one of the pins on the selection disk.
#2 after the record is done it will not eject the record fully. i have to hit and HOLD the reject button to get it to do the full cycle. if i let go the the reject button it stops.
# when i have manually tripped the selection disk the magazine spins really jerkey like it gets power then for a split second stops then power then stop.
any idea on what may be causing this would be very much liked
matt

Taking the second one first; this is typical of a failing over-center switch on the rear of the mech right behind the changer motor.

If that are the open type, try nudging the actuator a bit while either rejecting a record or scanning. If the switch has been replaced with a plastic sealed type try jiggling the button on it -not that there is much that can be done to repair it. It has to be replaced.

Failure to trip from the end spiral can be a bad trip switch in the tonearm mechanism. This switch starts the changer motor and a second later a lobe on the main cam actuates the transfer switch (again behind the motor) and it takes over.

Also, take a good look at the manual reject button. Unlike other makers, Wurlitzer mechs require a three pole switch here (SPDT). If the "at rest" contacts fail to make, the mech will not reject from the tonearm sw.

The first problem can be a number of things. First make sure you have credit along with the credit light and latchbar solenoid pulled-in. A common are on Wurlitzer keyboard assemblies are the flimsy leaf switch contacts.

Rob/NYC

problem # 1 fixed. the reject button was not the problem it was the transfer/mute switch that gets activated but the cam. it has a two sets of switches with a spring in the middle that when pushed the set shifts from side to side. well it would get pushed but would not switched. need to adjust to make it switch when the arm hit the bump on the cam.
no onto the remaining problems. can not make selection. get selection light, push both selections but they stay locked.
matt

Hi Matt,
Didja check them thar switches ( yea--all of them! ) on the keyboard ? You MUST use a good "analog" meter to do so !! That, or a relay (contact-again), is the usual cause of your remaining "problem"-- Ron Rich

Howdy Matt,
I had similar problem. There are a couple pawls that have to move to allow the switches to make contact. The number and letter buttons will latch, but unless they switches make contact they will not make the selection or clear (unless you clear with the manual clear selection button). If you have the manual it goes over adjustments with good pics on pages 8 and 9. My problem was the number pawl was not moving out of the way for the latch assembly to operate the switch. Hope this helps, Craig

ok ive cleared up all the problems but the selection. when i press down on the # selection it automaticaly trys to make a selection without letting me hit the letter. not sure if this a keyboard issue or a selector issue. no keyboard buttons seemed to be locked or anything other then the # one after a press it then it resets.
thanks

Matt,
What happens if you lock down a letter first--will it release a pin ?
Ron Rich

I have not been able to get it to release a pin. it acts like it will and i see the # solenoid activate and the letter disc spin but nothing.

if its a relay how easy is it to get them?

Matt,
"No problem"--I stock them, or, (hint--less expensive) your local "lectronics surplus store"---
You can also "clean them" and swap them around to see if the problem "changes". Just be sure you are "swapping" the correct types--Also--check the 8/10 A "selection" fuse !
I still suspect that there is a keyboard issue--pushing the number button alone, should NOT start the selection process ! Ron Rich

where is the selection fuse. ive looked around but didnt see it.

i see it i just didnt know it was the selection fuse

On the "Junction Box". Ron Rich

i was hoping there was another fuse that was bad to fix it