No insert lights on a pinbot.
Power is very low when connector j4 (power for lamps from power board) is plugged in 1.6v.
When j4 is unplugged from cpu power gradually goes up to 18v.
As far as I can tell 18v comes in at j4 goes to a c78, c77 (.1mfd 50v cap) and L3 (inductor) before going to the lamps associated transistors.
Anyone run into this before?

#2 5 years ago

DEC

GRUMPY

Pinside member

10y 95,050 8,703

OP
Quoted from newtoit:
Anyone run into this before?

Bad bridge rectifier.

#3 5 years ago

INK

Inkochnito

Pinside member

Piershil

12y 91,650 3,169 12

Put in a Bridge Board before things go really bad.
Take a look at my website www.inkochnito.nl and click on the Bridge Board image.
Bridge Board is available via Big Daddy Enterprises and Marco Specialties.

Peter

#4 5 years ago

NEW

newtoit

Pinside member

Bradenton, FL

10y 71,350 1,326 4 22 1

Fixed. Thank you it was the bridge rectifier. The bottom right one screwed right to the cabinet for anyone in the future.

#5 5 years ago

DEC

GRUMPY

Pinside member

10y 95,050 8,703

OP
Quoted from newtoit:
Fixed. Thank you it was the bridge rectifier.

Playball!!

#6 5 years ago

INK

Inkochnito

Pinside member

Piershil

12y 91,650 3,169 12

Atleast put in some fuses before the bridges.
It will save your wiring when the bridge rectifier goes bad the wroung way....

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