Seeburg LPC-1 Mechanism clamp arm locked and won't scan

Recently bought a LPC-1. When the console is powered up it will play the one 45 I assume it has been clamped on for years at an extremely low speed. Hopefully I can figure that out with the speed control and such but my main concern now is releasing that 45 and getting the mechanism to scan. It seems to be locked up but I'm not sure since the motor just keeps spinning and does not return the disc after its been played, just spins. If I can get it to unclamp and scan. Looked over a few PDF manuals but the motor/mechanical parts are what get me. I can trace down wire and solder.

Any ideas ?

Try the following--
POWER OFF !-- remove the mechanism cover (if still there). Find the reversing SWITCH, and "flip it" in the other direction. Power it back up, and it should scan, after putting the record into the rack. If not, get back to us--
Ron Rich

Found the switch. Still no return or scan. Payed close attention and can hear a click/shut off near the amplifier/auto speed unit after play. Needle stays at the end of the runoff and motor continues to spin without the return of the 45.

Sorry--I mis-read your symptoms--return the reversing switch to it's original position.
Power OFF, Remove the "square" green "mech" plug from the TSA. Short all wires within the plug (hanging section) together, re-apply power, and mech should trip-- contacts on upper stack are not making, (see service manual) or the mechanism cable is broken. Ron Rich

Ron,
Sorry for the delay. This console is all very new to me and I thank you for your help on this matter.

I went ahead and shorted the hanging green mech cable and still nothing. I have also used the troubleshooting manual and followed the steps for "sits and spins" (follow 16) and still having no luck. I am awaiting a hard copy of the manual and schematic but in the meantime thought you could direct me toward the connections that may not be making on the upper deck. I'm going to check the trip solenoid and follow some wires tonight. Where can I look for connection problems in the test socket ?

Just thought you might have had a few more ideas. Thanks

Justin

Does the clamp arm ever release the record ?--Using the service switch, can you stop/start the motor ?
Ron Rich

Ron,
The clamp arm never releases the record back into the magazine and the service switch does not stop/start the motor.

I have manually taken the record out so I could see better checking for connections. I'll take a look at the switch connections/cable.

Thanks. Justin

Justion,
STOP--check the 15 amp fuse located inside the TCC, near the transformer. If "blown" Do NOT replace it--yet !! Ron Rich

Ron,

15 AMP FUSE BLOWN !

Justin

Justin,
Atsa whut I were afraid of--
OK--what you MUST do prior to replacing the fuse is find out why it "blew"--
The most often cause of that is the latch bar solenoid in the TES. The next most often cause is the Detent coil on the mechanism.
If either is shorted, replace it first, before changing the fuse, or you WILL burn up wiring !
Ron Rich

The trip solenoid and detent coil seem to be fine so I traced the wires from the 15 AMP FUSE and the cable that runs between the service switch and the fuse was pinched or maybe manually cut and touching which caused the short.

I replaced the fuse and can now get the motor to stop and the "single play" lights up now ! The switch is "off" and the motor will not stop until the transformer is ready/warm but will stop. That, brings me to the hum...

The selection buttons will now stay down and the play control assembly is shifting but no returning of the record or scan when finished or selected. Still "sits and spins". I also tried to short the "mech" cable again but no luck on the trip.

We're getting closer but how close ?!

Justin

[quote="justin_hess"]I replaced the fuse and can now get the motor to stop and the "single play" lights up now ! The switch is "off" and the motor will not stop until the transformer is ready/warm but will stop. That, brings me to the hum...[/quote]
I sure do not understand the above ?
Where is the "hum" from ?
Ron Rich

The transformer in the TCC.

Justin

Justin,
The transformer in the TCC gets hot ? It should not--you have a definite problem in the phono somewhere, if it's getting hot, and you will have a VERY expensive,
Transformer to purchase--soon ! Ron Rich

Sorry Ron not warm as in heat. The noise or buzz gets up to a certain cycle and then the service switch will stop the motor, but not until then. (different subject: when I soldered the cable together the "select any single" light came on. I only mentioned that thinking it migh have been part of the issue)

Going through the troubleshooting manual and was looking at "V" connection in the cam switch and needle is playing the record in reverse now ! I can't help but smile there.

Another suggestion is the "MT" contact in the mute relay.

Still. Tryin to get the record to be released back in the magazine after playing and then scan. I'm all ears

Justin