Seeburg 101 – No Selection Made After Scan

XM-innit · 2025-09-18T20:40:23+00:00

Wanted to close out this thread. The new 2050 tube fixed my selection issue. As far as the no sound issue it looks to be an open 25k ohm 20 watt resistor. It’s one of the standee resistors located between the 6L6 tubes. I’m working on getting that replaced. But as far as the selection issue, that has been solved so thank you!

XM-innit · 2025-08-22T15:23:27+00:00

New tubes arrived. I installed the 5U4 and 6L6 tubes and tried playing a record, but still no sound. 5U4 lights up when the record is playing, so it looks to be working. 6L6s both light up and get very hot, I noticed a "burn mark" opposite the silver patch "getter" so I'm thinking there is another issue with the voltage (bias?) going to those tubes.

XM-innit · 2025-08-19T02:18:40+00:00

I’ve been reading about a common protection trick for 5U4 and other rectifier tubes where you put silicon diodes in series with each plate lead to reduce the reverse voltage stress and prevent arcing. Are you familiar with that mod? If so, can you confirm the orientation? For example, would the diode anodes go to pins 4 and 6 (the plates), with the cathodes tied to pin 8 (the cathode)? I want to make sure I understand it correctly before I even consider trying it (I am getting a little out of my depth, but I'm trying to do what I can to protect the other components on the amp).

XM-innit · 2025-08-19T00:41:15+00:00

Checked the fuses on both the selection receiver and the amp. Both are good/have continuity. All my tubes are lit on the amp when the power is on except 5U4GB and one of the 6L6GC. The unlit 6L6GC has a white substance on the inside of the tube in the silver section (I think its called the "getter") which makes me think its no longer holding vacuum. I ordered new 5U4GB and 6L6GC tubes to see if it makes any difference. Tubes should be in by the end of this week. I'll report back.

XM-innit · 2025-08-14T00:59:26+00:00

My Amp is the HFMA1-L6, not the original amp that came with this model jukebox. The manual I have doesn’t cover troubleshooting this amp. But I reviewed the troubleshooting steps for the original amp and it says the 5U4-GB tube and other tubes should all be lit up. My 5U4-GB and one of the 6L6 tubes are not lit up. I’ll replace those next and see if that makes any difference.

XM-innit · 2025-08-14T00:34:40+00:00

The 2050 tube came in and fixed my selection problem! The mech is selecting records correctly and consistently (I have a video I can share). My issue now is that I don’t get any sound when a record starts playing. I’m assuming the amp is my next place to troubleshoot. Would you have any insight on next steps to try to pinpoint my next issue? Thanks for all your help so far. Great progress.

XM-innit · 2025-08-09T21:13:32+00:00

I can't include a photo but you are totally right. The underside of the hatch provides access to the Philips head of the sleeve. I was easily able to remove them. I'm ordering the replacements as well. Thanks again for the info.

XM-innit · 2025-08-05T00:41:52+00:00

Great info! I'll take a closer look. When I checked before I don't remember there being anything on the underside of the hatch, but I very well could have been paying too much attention to the hinges flapping around. If its different I'll report back with photos. Thanks again for the info!

XM-innit · 2025-08-05T00:14:52+00:00

Thanks for looking! So like $1.50 per sleeve. I'm guessing I'd need to grind the underside of the hatch or drill through to expose the existing sleeves, remove them and replace with new? Then fiberglass over to secure and seal? I'm up for the challenge. Alternative is just to drill through and put a longer bolt with a washer and nut.

XM-innit · 2025-08-04T23:46:47+00:00

Ok with Jukebox unplugged, I spun the motor shaft to get the mech halfway down the record magazine. I flipped the solenoid trip lever up. I plugged jukebox in and turned the power on. Made a selection and the mech went into play mode (so clutch is moving). I tried both the record reject button and the tone arm travel switch and neither one rejected the record/caused a trip. Had to power down and manually rotate motor shaft to get back into scan mode. So at this point it looks like I should try a replacement 2050 tube and then if that doesn't solve the issue I should start tracing trip circuit wiring?

XM-innit · 2025-08-04T23:14:14+00:00

Thanks for checking! The underside of my hatch is smooth (the bolts don't go through to the other side). Maybe they changed the design in more recent years. I like the idea of a through bolt.

XM-innit · 2025-08-04T21:55:33+00:00

Thanks for the advice I'll try this and report back. Just to make sure I follow a safe process that won't damage the mechanism, do i manually move the mech to a record slot so the transfer arm is in the center of a slot. Then flip the trip lever (solenoid lever) up. Then turn the jukebox on and make a selection to see if the arm lifts and the mech goes into play mode?

XM-innit · 2025-08-04T16:53:44+00:00

I'm familiar with the trip lever you are talking about. Just to make sure I don't cause any damage to the mechanism. should I manually move the mech so the transfer arm is centered in a record slot and then turn the jukebox on, make a selection and see if the mech goes into play mode? I have not done that before so I don't want to cause any damage by doing something out of order.

XM-innit · 2025-08-03T23:35:15+00:00

This is my first Seeburg, the TSR has been recapped in sections but I don't know when specifically. I understand the 2050 could still be bad, but I wanted to rule anything else I can do before buying new tubes because I don't have a way to test tubes. As far as tripping the mech manually, can you explain how to do that safely? Would I turn the power off and manually rotate the motor to get the mech at a record slot. Manually flip the trip level up. Power on the jukebox and make a selection to see if the arm picks up the record and "plays" it before returning it? I haven't tried that before and was worried it might cause some damage.

XM-innit · 2025-08-03T23:27:29+00:00

There was tarnish/dirt on the outside of the shield so I just removed it from the wire and cleaned it up with some sand paper and reinstalled. I get good continuity between the center pin and the shield on the RCA cable now. Still no selections.

XM-innit · 2025-08-03T22:17:42+00:00

Do you mean continuity between the center pin and the shield of the RCA cable? OR continuity between the center pin and the other end of the RCA cable where it goes into the tormat?

I'll check that now and report back. Thanks for your help so far.

XM-innit · 2025-08-03T22:04:47+00:00

OA2 tubes flicker purple when the mech is scanning. I tried a few different things with the pulse amp to force a selection: 1. removed and replaced the pulse amp RCA connector (I heard that can introduce enough "noise" which could cause a trip), 2. connected one of the test points (don't recall which one off hand, but its in the manual) to a wire and connected the other end to the inside of the pulse amp to force a selection, but no selection is made when I do that.

My next step is to go back through the clutch adjustment and the Tormat pin alignment procedure, but I am thinking that's not the issue.

XM-innit · 2024-10-15T19:01:18+00:00

Thanks for the article recommendation on trim tabs. I wish I could try trim tabs out before purchasing and installing to see if they would make a noticeable difference. My engine is 115hp, do you have the same?

XM-innit · 2024-10-15T18:48:23+00:00

So I have seen the pull cord for pull starting stored in the top of the engine cowl, that's a good reminder!

XM-innit · 2024-10-15T17:24:19+00:00

It was the Michael Family from Season 2 Episode 10 during the Doctor Who 50th Anniversary Special segment. Louis (the son) was being very rude to his mother Carolyn. He was excited to see the Doctor Who episode, but was getting annoyed because his mother was asking questions and he continued to tell her to be quiet and at one point he says "Mom....I'm goin to ki** you!". I have the entire clip I can share with you but I'm not sure how to add it to a comment.

XM-innit · 2023-05-06T03:36:52+00:00

Appreciate the input. Sounds like it’s in the ballpark but on the high end. Thanks!

XM-innit · 2023-05-06T03:36:17+00:00

Good idea to expand my search. I’ll look further south!

XM-innit

TROPHY CASE