21 replies to this topic

[websherpa]

MPU battery leakage is a big problem with older pinballs too, also overheated GI resistors, then power transistors, then glass tube displays, then capacitors, and so on, and so on....

...but then the manufacturers/engineers likely started building in failure "time bombs". The theory being that once an operator needed to send out a technician a few times, it would be cheaper to scrap the game and buy a new one, a bonus to the manufacturers and distributors.

70's and 80's North American slots, on the other hand, are built like tanks - though they do fail too, just not as regularly (in my inexperienced opinion, I could be wrong - challenge me.)

[Guitar]

Fruity2000 QUOTE "It would appear to me that battery leakage is probably one of the main causes of machine failure "

so in the last 14 and half years i have service let`s say 5000 mpu`s the battery is probably one of the main causes of machine failure.

And the servay said
mmmmmmmmmm may be jim can fix it

i will let my 11 service guy`s know is that some bloke said on inter web we need to replace and do a ram clear on all mpu`s to fix ic problems or software gliches yes even diode problems on the button matrix. i love you
i think your great

Any chance you can elaborate on known switch matrix problems? I have had a couple of boards with what seems like a dead matrix