I have a 1964 rowe ami jbm-200 that stopped registering selections. Once a credit is established, the numbers and letters latch in and the search wipers and pin pusher run continuously. I can see the S1 solenoid attempting to pull down the number sprag tooth, but it doesn't seem to have enough energy to do so. I have made sprag relay adjustments per the manual. I have also switched out the entire search unit including relay 2 with the same results. I have cleaned and adjusted r1 and r5. Both relays seems to make/break contact as they should. When i manually engage the number sprag tooth, it picks up a record and resets the pin as it should. Does anybody have any ideas? Thanks, josh kc,mo,usa