marxtoys
New member
... but that would have stunk up the shop.
The box from Ed showed up yesterday with some pieces for the power supply. Put that together and it tested ok. Put new try-farkin terminals in the connectors and plugged it in.
Cleaned the battery spew off of the mpu brackets. Programmed a couple of 2732s and put them in a mpu that isn't rotten. Put it in the game and it boots.
Start a game and player 1 display has credits. Wiggle coin door wiring and reboot. Displays normal. Flippers dead. Relay not activating. hmm.
Try another driver board. Flippers dead. Relay not activating. Huh??? It worked in the other game, dammit. Scratch head and look at schematic. Flipper relay is a special circuit. Check for and find continuity in wiring to mpu.
Try another driver board. Flippers dead. Relay not activating. Drop target coil locks on. Dammit. Thought that board was good. Replace the transistor. DT coil still on. Replace the 3081 chip and DT coil behaves.
Grounding the driver transistor tabs would activate coils - except for the flipper relay.
Solenoid test would activate all coils except flipper relay.
Scratch head and look at schematic some more. Flipper relay is a special circuit. Check for solenoid voltage to relay coil. Nope. No solenoid power to driver board. Goddam IDC connector. Wire not engaged to terminal.
Time to order some connectors. I can fix some sloppy light sockets while I'm waiting.
Dammit.
The box from Ed showed up yesterday with some pieces for the power supply. Put that together and it tested ok. Put new try-farkin terminals in the connectors and plugged it in.
Cleaned the battery spew off of the mpu brackets. Programmed a couple of 2732s and put them in a mpu that isn't rotten. Put it in the game and it boots.
Start a game and player 1 display has credits. Wiggle coin door wiring and reboot. Displays normal. Flippers dead. Relay not activating. hmm.
Try another driver board. Flippers dead. Relay not activating. Huh??? It worked in the other game, dammit. Scratch head and look at schematic. Flipper relay is a special circuit. Check for and find continuity in wiring to mpu.
Try another driver board. Flippers dead. Relay not activating. Drop target coil locks on. Dammit. Thought that board was good. Replace the transistor. DT coil still on. Replace the 3081 chip and DT coil behaves.
Grounding the driver transistor tabs would activate coils - except for the flipper relay.
Solenoid test would activate all coils except flipper relay.
Scratch head and look at schematic some more. Flipper relay is a special circuit. Check for solenoid voltage to relay coil. Nope. No solenoid power to driver board. Goddam IDC connector. Wire not engaged to terminal.
Time to order some connectors. I can fix some sloppy light sockets while I'm waiting.
Dammit.