Like halfpick said, timing, relay contacts, cold solders... If NA and NB are working that means AL and BL from the hatch tape box are driving the selector properly. If it's directional, I'd be looking at 85U or 82U and/or 81U, 81UA, 81UAB etc.. Always check for voltage first then look at the relays for a) are they functioning? b) halfpicking? c) residual? d) plenty of pad on the contacts? e) armature leaf spring broken? f) contact out of the ladder? Look at the S0 and SA0s also..
Last edited by E-man; 10/04/14 03:57 PM.
