(Topic ID: 200715)

Gilligan's Island WPC Power Driver Board


By cranie

1 year ago



Topic Stats

  • 17 posts
  • 3 Pinsiders participating
  • Latest reply 1 year ago by Mank
  • Topic is favorited by 2 Pinsiders

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There have been 4 images uploaded to this topic. (View topic image gallery).

IMG_4174 (resized).jpg
IMG_4175 (resized).jpg
IMG_4176 (resized).jpg
GI 119-120-121 (resized).jpg

#1 1 year ago

Anyone got pictures of J120/121 on the WPC Power Driver board? I'm trying to rescue a severely hacked one and having issues rebuilding the connectors. Wire colors/pin numbers don't seem to match up to the schematic.

Thanks

#2 1 year ago

Can't tell it's 100% correct, made this notes long time ago.

GI 119-120-121 (resized).jpg

#3 1 year ago
Quoted from zaza:

Can't tell it's 100% correct, made this notes long time ago.

Thanks. I had one wire off. Manual says pin 10 in one spot and 11 in another. i chose wrong.

Still having all kinds of issues with multiple locking coils. Next step is to pull the PDB again and test on a rig.

#4 1 year ago

I also currently have no connector on J123. The manual shows that's flashers but i don;t see any dangling connector or wires here.

#5 1 year ago

Maybe coming from the insert panel in the backbox ?, or wrong plugged on J131 ?!

#6 1 year ago
Quoted from zaza:

Maybe coming from the insert panel in the backbox ?, or wrong plugged on J131 ?!

I owe you a beer, sir.

Spot on correct. Was plugged at J131. Answered quite a few other issues I had. Still have no flashers but at least I'm further along now.

Thank you.

#7 1 year ago

Yes, a beer

When plugged like this, the 20 Volt and 70 Volt are only separated by a coil and a flasher making both active all the time.
This can result in a failing capacitor C11 on PDB and fuse F111.

Check for 20 Volt on J106-5.

#8 1 year ago

22V pin 5. 74V pin 1

#9 1 year ago

Got it. Pin 6 on J107 was slightly pulled out of the IDC. Pushed it back in and now i've got flashers. Last issue left is the upper GI fuse blowing after about 7 secs. Slower if i have the brightness turned down. I would think a short would blow it instantly.

#10 1 year ago
Quoted from cranie:

upper GI fuse blowing

F108 ? that would be string #3, Yellow only used on the playfield.
Remove all lamps in that string and check sockets + lamps , pinched wires etc.

#11 1 year ago

Yeah I started checking all the sockets in that string. So far nothing. I measured across the fuseholder and I'm seeing 5.2 amps. I pulled all the bulbs in the backbox that are on that string (about 1/2 of it).

Now the GI on the PF and 1/2 the backbox stays lit for about 2 minutes and the draw is 3.5 amps (I've only got a 3 amp breaker)

If it was a short wouldn't the amps stay the same and the fuse go just as quickly?

#12 1 year ago

Can you make a picture of J120/121 ?

#13 1 year ago

IMG_4176 (resized).jpg

IMG_4175 (resized).jpg

IMG_4174 (resized).jpg

#14 1 year ago

Can you pull Wht-Brn from J120-9 and put it on J120-7.
The way it is now, Wht-Brn and Wht-Yel are on the same fuse and possible pulling too much current.

#15 1 year ago

I moved it over and now that string is pulling about 3.2 amps with incandescents. I'm planning and switching to warm white LED's to reduce heat and that should cut a bit more off.

I appreciate the help. Also thank you for all the great info and diagrams you contributed to Pin Wiki.

#16 1 year ago

My pleasure,

And good to see you found the articles in PinWiki. I still keep those pictures within reach when doing board repair, very handy.

1 month later
#17 1 year ago

Connectors at J120 and J121 are reversed. The connector with the brown wire at position 1 should be plugged into 121. The connector with the violet wire at position 6 should be plugged into J120

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