Raikus
Member
I had my bottom left pop bumper coil lock on and burn out. So I replaced the solenoid in the pop bumper, made sure the wires were soldered back on correctly, replaced the power transistor that matches up to the pop bumper solenoid (in this case, second row, middle section of the special solenoid drivers on the driver board), turned it on and *SNACK, CRACKLE, POP*
It flamed out another one.
My next step is replacing the 2N4401 transistor and 3 resistors in this section in addition to another 5A-8977 transistor (which are listed as TIP122 on the schematic, but the Marco ones that I ordered based on part number read as TIP120). Before I do that and potentially fry another batch of transistors, is there something else I need to check or look at?
Additional info: Firepower is a Williams System 6 and I'm using the driver board schematic made by Phil Butcher for part numbers and solenoid locations.
Appreciate the help.
It flamed out another one.
My next step is replacing the 2N4401 transistor and 3 resistors in this section in addition to another 5A-8977 transistor (which are listed as TIP122 on the schematic, but the Marco ones that I ordered based on part number read as TIP120). Before I do that and potentially fry another batch of transistors, is there something else I need to check or look at?
Additional info: Firepower is a Williams System 6 and I'm using the driver board schematic made by Phil Butcher for part numbers and solenoid locations.
Appreciate the help.