(Topic ID: 198632)

SOLVED: DE poto. One side GI out

By jmountjoy111

6 years ago


Topic Heartbeat

Topic Stats

  • 11 posts
  • 3 Pinsiders participating
  • Latest reply 6 years ago by Buzz
  • Topic is favorited by 1 Pinsider

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#1 6 years ago

This phantom of the opera I picked up keeps blowing f1 on the ppb board. The left side of the GI is what it powers. Any ideas? I'm sure it's something simple I'm overlooking.

#2 6 years ago

Check for burnt pins on CN8 on the power supply.

#3 6 years ago

I re pinned both sides of the power supply at cn8

#4 6 years ago

I reflowed the pins on the back of the ppb board too.

I inspected the GI chain to see if I could see any noticbly shorted parts but couldn't see any

#5 6 years ago

I've got the schematics on it in the manual. I know I've got to just be missing something simple. I guess I'm going to keep checking for shorts in the line

If anyone has any ideas please feel free. I'm open to any suggestions at this point

#6 6 years ago

Yeah, I think you may need to check every lamp socket in that string. Look for the terminals touching each other and look to see if the outer solder terminal is bent and touching the socket housing.

#7 6 years ago

I've got continuity between pins 4 and 9 on j5 to the ppb board. Would a short across a bulb socket cause that?

#8 6 years ago

It will measure low resistance with all the bulbs in the sockets. You could remove all the bulbs and then put in a couple at a time to see if the fuse blows.

#9 6 years ago

Unplugged the back board lights in the back of the playfield and they light with no blowing my circuit breaker. Must have some damaged sockets back there I missed. Thanks a ton guys

#10 6 years ago

That narrows it down. Good job.

#11 6 years ago

Sweet. Very helpful for the next person.

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