Rock-Ola 1494 selects wrong record

[gordo]

Hi once again,
This jukebox rebuild has fought with me every step of the way.
It certainly has had a full life. I don't know what previous owners have done or why.

My latest (and hopefully final) issue is that 90% of the records selected play as they should. Great!

The last 10% select the record immediately preceding what I have selected.
This only happens for the bottom row of the section program.
These are the records numbered J2/K2, J4/K4, J6/K6, J8/K8, J0/K0. 

I assumed this would have been a mis-adjusted 'write-in' carriage. 
I checked my manual and adjusted the 'write-in' carriage. Unfortunately, no improvement.

I checked all the connections on the carriage and selector pins, all appear OK.

I checked the 'contact fingers' on the carriage are contacting with the printed circuit disc, all appear OK.

If I select a record (say J6) the 'write-in' selector carriage stops at G6 (one record early).

If I continue to select J6 the carriage moves slightly forward with each selection, after 3 or 4 attempts it eventually moves enough to select the correct record.

I have lubed everything.

I am out of ideas, can anyone offer a suggestion?

Kind Regards
Gordon

[gordo]

It appears that I have resolved this problem.

It is always so difficult to work out what previous owners have messed with.

Regards

Gordon...

[Ron Rich]

Hi Gordon,
Glad it's resolved!!---but that's no fair---What did you do to fix it
Ron Rich

[gordo]

Hi Ron,

I started out all over again.
I reset the 'write-in' selector and checked every plug by opening up the wiring to ensure continuity.

I cleaned and checked the 'write-in' coil and 'stop' relay.

This all provided no improvement. It looked as if I was going to live with 90% selections.

The only thing left was the selector buttons. I reset the selector switch lock bar etc (again).
No change. Then looked to the selector buttons.
Cleaned and adjusted them...and it worked!!

I spent 20-30 hours looking for this problem and must have overlooked the cause.

I still don't understand why the letters J-K and numbers 2-4-6-8-0 all work with other selections, but just not when selected together.

One of the mysteries of jukebox repair.

My 'take-out' message is Check Everything...TWICE.

Regards

Gordon

[Ron Rich]

Hi Gordon,
Glad it's working --
Beats the "stuffing" outa me ! Life is a big mystery to me-- My dog wound up getting into some kind o "sticky stuff" all over the back of his neck. NO one around here knows what it was--how this happened --and he's keeping his mouth closed ! Ron Rich