Rockola 424 Selection problems

I am having a strange, to me anyway, problem with the write in on a Rock ola 424. I will first explain what it is basically doing: If I select A 1 the write in scans and stops and pops the a pin, it is not always A 1, but I have not yet finely adjusted the write in caridge. If I select A 1 again, instead of rotating all the way around and poping A 1 again, it will stop at the next pin and pop it on the A side. It will continue to do this all through the number 1 and 2 segment of the wiper ring. When it reaches the end of the 1 and 2 segment, it will rotate all the way around to the 1 and 2 segement and start over. It does the same for b sides, all the way through the 1 and 2 segments. It also repeats this same process on all of the segements, if other selections are made. Here are the things I have checked: I disassembled the pinbank and checked for any wires laying across another terminal, nothing. if I unplug the write in motor, make an A 1 selection and use a jumper wire between the A rivet and the 1 and 2 segment it will activate the hammer coil. If I try the same thing wile the A 1 buttons are locked down but between any other rivets and the 1 and 2 segment it will not activate the hammer coil unless there is also a ground to one of the pins. I have swapped the keyboard with no changes, I have also tested numerous points for continuity or shorts between the pin bank housing and the rivets/ wiper rings and nothing. What am I missing ? Another thing of note, If I disconnect the write in motor, select A 1 from the keyboard and move the write in carradge by hand, it will stop at the A 1 pin and pop it, if I leave that pin activated and do not return it to the un selected position and then rotate the carridge past the 1 and 2 segment, select A 1 again, and then rotate the carridge to A 1, it will not activate the trip hammer coil in that position, I am guessing because the pin is moved in to a position where a connection can not be made with the contact on the write in carridge, but it will activate at C 1 and pull the C 1 pin out and so on and so forth. Any help or advice will be appreciated.

The more I have looked at the schematic, the more it appears that someone replaced the write in carridge with a read out and did not rewire it.

Hi
Could you upload a photo of the write in carriage and wiring,
clones

I don't really have a handy way to upload pictures, but looking at pictures of others on line and comparing, the one I am working on is definitely wrong.

Hi
The read out arm is shorter than the write in arm. The write in arm has toothed gear in the middle and a counter weight on the end of it. Also you would have a hell of a time fitting the read out arm on the write in side.
Clones

Right. They did not change the arm, just the plastic piece its self , they left the lever grounding contacts in and wired one to the letter rivet wiper and the other to the number segment wiper and no jumper in between the two wipers. The machine was a mess in general, it looks like several people have done work on it without completing it. I thought this set up looked strange but there is also a 429 at this same shop , which is not working either, that has had the same mistake made with replacement of the write in carridge plastic, I looked at that and thought it must have been the way the selection system was designed at that point ( with grounding contacts to the selection levers) and then changed later in the mechanisms I am more familiar with, 448, 474, ect. In any case, this part is straightened out now.