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Tales from the Crypt power issue

hatster

Registered
Joined
Apr 14, 2013
Messages
63
Location
Almeria, Spain
Help!

my tftc just died. when turned on all GI and playfield lamps come on but nothing else happens, no display, etc. i measured the 5v on the cpu board and shows 3.6v. same on the power supply. If I disconnect the large connector that has all the 5v out's on it, then the power supply shows 4.8v.
does this mean something is dragging down the 5v, or does it mean something on the power supply is weak / broke ? any ideas ?

Thanks,

Kev.
 
i should add that i also disconnected the smaller connector below it which powers the display, either one of these connected drops the voltage to 3.8v so im guessing i have answered my own question that its likely the power supply is weak..

now what should I be looking at replacing ?
 
you were right ! thankyou. The old one didnt look bad either...

now got a couple blown fuses and a bad solenoid to nsort.
 
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