Seeburg USC2 - Proper way to bypass coin operation?

rardis66 · by **rardis66** » Wed Oct 05, 2011 4:26 am

My Seeburg USC2 won't register anything when I press selection buttons. The lights are all on, the speakers thump to life, and the turntable turns. However, the selection lights don't come on when I press buttons, and the mechanism won't move. I see that a previous owner took all of the coin-operating stuff out. I understand from the guy who had it before me that it was rigged to always act as if you had a credit. I'm concerned this "rigging" may be what has gone bad. Anyone know the proper way to bypass the coin operation? I want to see if this one was done correctly. Thanks.

by **Ron Rich** » Wed Oct 05, 2011 4:44 am

Very simple--just remove ("pull out" ) the pricing programmer from the front of the DTP-1--
Causes no problems, as that was in the design.
If your "select any single" lamp is lit, but it will not show a "1st digit" lamp, most likely, you have internal problems in the DTP-1. I STRONGLY suggest you not open it unless you know how to, and do, take static protective measures, and can repair electronics.
Ron Rich

rardis66 · by **rardis66** » Wed Oct 05, 2011 10:52 pm

What if my "select any single" lamp is not lit?

by **Ron Rich** » Wed Oct 05, 2011 11:13 pm

If that's the case, first check the lamp--it MUST be a #1819, double hung style only.
If good, and correct, check the -27 and -13 Volt power supplies (assuming the DTP-1 is plugged in, and the price programmer is removed).
Ron Rich

rardis66 · by **rardis66** » Thu Oct 06, 2011 4:51 am

The DTP-1 is plugged in, and the price programmer is removed. Once I saw this, I assumed that something had to be fundamentally wrong with the "brains" of this unit. I folded out the DCC. The 15A fuse on the digital control center (F3104) was blown. That's an easy fix, but I've got to ask - what caused the fuse to blow?

by **Ron Rich** » Thu Oct 06, 2011 5:34 pm

STOP--right there--do not replace that 15 amp fuse with another 15 amp fuse !!!
If there was still a 15 amp fuse in that hole, it should have been changed to a 7.5 MAX, years ago. I usually put a 7 in that spot--I strongly suggest that you not install any value fuse till you track down the reason it blew--it is the "24vac circuit"--and if trouble shot by installing multiple fuses, WILL cause major damage.
The most common reason for that fuse "blowing" is a shorted trip coil--
I also would suggest that you contact me off forum, and purchase a copy of my "Seeburg Microlog Trouble Shooting Guide", and read it before going any further---
Ron Rich