Thanks for the reply - i will go and double check all solder joints, but an initial glance they all seemed OK. The problem is now permanent...is it possible the chip could have been on the way out when the problem was intermittent or do they just go?
If the problem is now permanant test between the J107 pin 6 and ground for 20V. If this is missing the problem is before this point at the power supply. If it is there, then test again for it at one of the flashers under the playfield.
