fgant
New Member
Posts: 2
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Post by fgant on Jul 7, 2018 8:26:43 GMT
I have been putting back together an APFEA1 (respectively, it's in a Showcase cabinet. While I have it working correctly when selecting A side selections it just scans past any b side selection. I have tried everything I can think of. Anyone have any ideas?
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Post by Ron Rich on Jul 7, 2018 23:38:22 GMT
What do you mean by "showcase cabinet" ? Are you using a SCC-3, or SCC-4 ? Ron Rich
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Post by robnyc on Jul 8, 2018 0:37:11 GMT
Ron, the above poster has been asking about this machine on the FB Seeburg Select-O-Matic Jukebox Collectors site. He has a Fleetwood mech, apu, and control center -all housed in a SS160 cabinet.
I'm not sure about what keyboard he has or if that would matter regarding his current problem.
They way FB starts folding-in and compressing items that run out for days makes it inconvenient to follow longer topics.
Rob
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Post by robnyc on Jul 8, 2018 1:08:55 GMT
I have been putting back together an APFEA1 (respectively, it's in a Showcase cabinet. While I have it working correctly when selecting A side selections it just scans past any b side selection. I have tried everything I can think of. Anyone have any ideas? I'll post this here as it may be missed at the other site due to it's format: It is time for the battery test: Take a good C or D cell. With battery held with top (positive end) on an unpainted section of the control center remove each pulse amp RCA plug and touch the tip to the negative end of the battery. Place both RCA plugs back in the receiver, make sure service sw is in “operate” start mech scanning by making a selection. Mech should trip at the first slot going L-R. Reject it and it should trip at the B side. Reject and repeat several times. This test eliminates the keyboard and APU as well as the Write-in voltage source. If it passes the test the problem is in the write-in circuits. If it fails to trip at both A & B sides the issues is in either the readout source or pulse amps, contact block or the A vs.B readout switching on the mech itself. Alignment of the tormat itself may be off, though if one side works it should at be OK. RobNYC |
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Post by Ron Rich on Jul 8, 2018 1:41:03 GMT
Rob,
This model has no "pulse amp". Ron Rich
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Post by robnyc on Jul 8, 2018 2:11:51 GMT
Ron, here we have a different perception. While it is not the same unitary device as in the tube models, these later receivers do have an integrated pulse amp. It uses a sensitive gate SCR which does have a virtual gain factor. Seeburg also used two sensing loop turns instead of the original one turn to give a higher pulse. I wonder why they did do two, or three turns originally.
Rob
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Post by Ron Rich on Jul 8, 2018 3:24:55 GMT
Rob,
Yes--depending on the SCC number and code mark,differing circuits were used to energize the detent relay(s).
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