Seeburg HF100-G

Hi

I have a nice Seeburg HF100-G. It has two problems I am working on.

1. It is playing every slot and I assume I need to replace the cancel solenoid?

2. When scanning from right to left the mech moves on its own to each slot. When moving from left to right it will not move to the next slot unless I apply light pressure to "assist" the mech to move. The mech has been cleaned and lubed. How can I correct this flaw?

Best
Darrell

Darrell, there are two different things going on here;

IF no pins are flipped (outward) there is a short to ground -probably in the wiring to the contact block.

The sluggish scanning is caused by either a weak/open section of the run capacitor, or the vertical stack contacts that add the extra capacitor section during scan. Just trace form the motor run cap.

Rob/NYC

Rob

Will check points you suggested, thank you.

Best
Darrell

Hi Darrell,
I interpret what you have said differently then Rob did--dono who's correct--
I believe both problems are related to the position of the SA Unit. If, on "needle set down" you hear the pop meter, and cancel solenoids operating, my assumption is correct. If you do not hear either operating, the S-SC contacts are not properly adjusted, or they are "dirty/pitted"--Plus, the alignment may still be incorrect. (You can watch the cancel sol's on either the A-1, or K10 end).
Your "alignment problem" may also relate to the fact that the phono has been transported without proper bolt down procedures being followed ? If this is the case, you may find the "U shaped bracket" in which the frog rides has been damaged, and is not properly containing it. In "worst case instances", the whole support, for the frog assembly is bent, or broken---
Ron Rich

Ron & Rob

After much cleaning and adjusting on the contacts plus manual operating the pins numerous times, the jukebox is selecting, playing and canceling properly 99% of the time.

Do any of these older units work flawlessly 100% of the time

Best
Darre

Darrell,
ABSOLUTELY !!
What "fails", 1% of the time ?
Ron Rich

ds100h wrote:Ron & Rob
After much cleaning and adjusting on the contacts plus manual operating the pins numerous times, the jukebox is selecting, playing and canceling properly 99% of the time.
Do any of these older units work flawlessly 100% of the time
Best
Darre

My approach is that you can get 100% performance 97% of the time.

For commercial service is has to be running as close to 100% as can be. That means NO missed selections as I test each wallbox and consistent sound quality. For a location where the play count is 1200-1400/wk, one missed selection per 100 plays will be more noticeable than it ever will at home.

At home it is more an issue of how much further beyond the basics you want to go.

These old systems were designed for reliability IF maintained. There aren't any logic systems that are affected by electrical noise or subtle failure of individual semiconductors on a substrate. The Seeburg tormat system is pretty simple to get to 100%. If voltages are good and contacts are good; it works. Tubes in the control system and of course, stepping switches are the complicate matters, but if you understand their operation, they cam be maintained and often modified for longterm reliability.

The fact that i can keep nine, near 60 year-old machine is service, but can't get certain parts for mid-ninties CD machines does give one an appreciation for this somewhat primitive tech that simply does the basics.

Rob

Rob

I understand about the parts. I have noticed that there are some over seas suppliers that carry many items that the suppliers here (USA) do not carry.

Best
Darrell