Pinball Power Supply Problems

The 39k ohm power supply resistors.

Pinball power supply problems.

This bridge can fatiqued and cause the game to have random resets. 6 16 7 cracked power or ground header pins and cracked solder joints at the 5v fuse 6 16 8 missing diodes open diodes or cold solder joints at the flipper coils 6 16 9 poor connections between the transformer secondary and the power driver board 6 16 10 poor connection at j101 on the power driver board. Note the 1n959b is mis labeled in the manual as 1n9598. And quite often this power supply section does go bad.

If either of these voltages are bad your displays will not work. A problem that might be unique to this particular version of the data east power supply is that sometimes an electrolytic capacitor on the board will leak arcing and creating a short between the horizontal trace and a via circled at left. Volt power supply bridge fails fuse f5 or f6 7 amp slo blo on the power supply blows. This means your problem probably lies with chips u6 u9 or u11 or their sockets or incorrect mpu board jumpers.

With acute attention to detail plug and play technology and complete redesigns of classic game technology our products are built to the highest standards of design technical specifications and manufacturing. Keep a few 35 amp 200 volt or higher bridge. The power supply board s db1 bridge rectifier supplies 5 volt and 12 volts to the entire game. Bad capacitors and bridge rectifie.

If you replace this blown fuse turn the game back on and the fuse immediately blows. Xpin is the leading provider of aftermarket replacement displays driver boards and power supplies for pinball machines. This means the 5 volt bridge br1 on the power supply board is shorted. Db1 power supply bridge rectifier problems.

A reset trick led stuck on adding a capacitor. If having problems with the reset led stuck on try shorting together with a screwdriver blade pins 39 and 40 of the u9 cpu.