tz help smoking

[glyn davies]

hi one of the jet bumper has just burnt up the solnoid totaly melted

why whould this happen ive took of the solonoid but now none of the jet bumpers work or does the ball release or the slig=ng shoots whould a fuse be blown if so can someone point me in the right direnction

thanks

 

[Pudsey pinball]

Sounds like the driver transistor on the driver board in back box has failed locking ON causing coil to energise burning it out,thus prob popping the fuse but if that is the case you need to defo find fault before replacing fuse.

 

[ronsplooter]

Have a look on Pinwiki section 4.11.1 for how to test transistors to see whether they're knackered:

http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Solenoid.2C_Flasher.2C_and_Motor_problems

 

[glyn davies]

at mo it running fine without that solonid take t if a new one is fitted itwill do the same and burn up

 

[ronsplooter]

Yes you need to fix the root cause of the problem before fitting a new solenoid or fuse otherwise the same thing will happen. Use the info on Pinwiki to test the transistors to figure out if that's caused the problem (most likely) and then you can either have a go a replacing it yourself or send the board off to be fixed (Andy the Legend and Phil at PH both offer this service).