If the Battery Test plays both A & B sides, then the 2D21s and related read-out circuits are NOT the problem.
I would be looking for a common wire for the B sides of the records starting at the keyboard. Something that is different from the A side wiring. I don't recall this differentiation on the V200 keyboards though.
Are you SURE the machine is playing records on both sides when the Battery Test is used? Have you tried writing to B side records that work with the Battery Test?
Just off the top of my head, haven't time to dig out a manual at the moment as working on other machines...
John :-#)#
On 2023/09/20 8:48 a.m., M De Simone via Jukebox-list wrote:
I must correct this post. It will play A (left) sides but not B (sides). Not sure if that makes a difference but thought it might be important.
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On Sep 20, 2023, at 11:43 AM, M De Simone m.desimone@rogers.com wrote:
Hey All, A jukebox hobby friend asked for my help as he really doesn’t have computer savvy. He has a V200 with a TSR1 selection receiver. When he performs the battery trick all selections are selected and played. Making a selection from the keyboard works fine for all A (left side) selections but the mech will scan twice and not pick up any B side (right side) selections? He has tried swapping the 2D21 tubes and has traced out and verified all the wiring is good with continuity. To me it sounded like a readout problem at first but the fact that it selects and plays all selections when charged by a battery kinda eliminates a readout or trip.problem and the fact that it selects and plays A sides, I think, rules out a write in problem? I was hoping someone could offer some suggestions as I’m really not good at remote troubleshooting and this seems like a very odd problem to me. Much appreciated,
Mauro
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