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(Topic ID: 276048)

Dirty Harry - burned connector


By Rdkleine

54 days ago



Topic Stats

  • 10 posts
  • 4 Pinsiders participating
  • Latest reply 34 days ago by Don_C
  • No one calls this topic a favorite

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#1 54 days ago

Hi all,

My son was playing the machine and then the flippers stopped (and bumpers etc) the switches seemed to work so I checked the back panel cabinet (see attachment). The connected burned out apparently.

My experience with pinball maintenance is limited to some simple soldering work and replacing simple parts. So bear with me
If I've replaced the connector are there other usual suspects to check out or will this likely be the problem.

Thanks!

IMG_6105 (resized).jpeg
#2 54 days ago

That looks like Pin 10 on connector J-120.
Not related to your current issues.
That pin is for the GI lighting. Those tend to burn over time from being constantly on when the game is running.
See pages 3-28 and 3-29 in the manual to confirm that.

Have you checked your fuses with a multimeter yet?
One may be blown but still appear good.

#3 54 days ago

Ok will check the fuses and look further for other pointers thanks.

You are right. I've looked back some assembly photo's from a few weeks ago when I've purchased and moved the machine. This connector was a bit black from what I can see.

Edit 3: found a blown fuse F112 - 220v 7A

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2 weeks later
#4 35 days ago

After spending seven 7amp fuses I have found a problem in the diode bridge. One of the four internal diodes gave 0 ohm both ways so it shorted the F112 fuse out. Waiting for the replacement diode bridge to arrive.

Diode bridge MB352W

#5 35 days ago

Looks like you pulled the pads off the top of the board as well they seem to be on that rectifier, so you will have to repair the board too or use jumper wires.

#6 34 days ago

It looks worse than it is. The diode bridge came in today, soldered it into place and Dirty Harry is back

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#7 34 days ago

Today received the new diode bridge soldered it into place.
Dirty Harry is back

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#8 34 days ago
Quoted from slochar:

Looks like you pulled the pads off the top of the board as well they seem to be on that rectifier, so you will have to repair the board too or use jumper wires.

I’ve soldered the bridge both sides. Think this will cause troubles down the road?

#9 34 days ago
Quoted from Rdkleine:

I’ve soldered the bridge both sides. Think this will cause troubles down the road?

Nope, only if someone else needs to remove it.

#10 34 days ago

snip out bridges with a small set of side cutters, then it's easy to remove the leg stubs with no damage.

Don C.

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