(Topic ID: 259676)

Gottlieb Rock Issues when powered on


By kechlesurf

9 days ago



Topic Stats

  • 4 posts
  • 3 Pinsiders participating
  • Latest reply 8 days ago by woz
  • No one calls this topic a favorite

You

Linked Games

  • Rock Gottlieb, 1985

Topic Gallery

There have been 2 images uploaded to this topic. (View topic image gallery).

Rock 2 (resized).JPG
Rock 1 (resized).JPG

#1 9 days ago

I have a question that I need some technical help with. I have a Gottlieb Rock and it worked fine till the other day when I would power it on, the DMD wouldnt power on and the coin mechanism on the coin door would not let me put credits on the machine. But if I moved the wires a little bit (wires in the pics), it would eventually turn the DMD on as well as allow me to put credits on the machine through the mechanism.

Attached are a few pics, I will take better pics when I get home later but hoping this is an easy fix. Any suggestions on what I should look at to resolve this issue? Machine worked well and never had this issue when I was playing it everyday, but after not playing it for a few weeks, this issue arose when I turned it on the other day.

Rock 1 (resized).JPGRock 2 (resized).JPG
#2 9 days ago

Probably the daughter board carrying the EPROM - known issue of cracked solder joints on header to mainboard causing issue. It's difficult to repair properly so this clever device was invented:

https://www.pinitech.com/products/gottlieb_piggydeux.php

Plugs into the 40 pin DIP scoket those wires are currently plugged into.

#3 8 days ago
Quoted from woz:

Probably the daughter board carrying the EPROM - known issue of cracked solder joints on header to mainboard causing issue. It's difficult to repair properly so this clever device was invented:
https://www.pinitech.com/products/gottlieb_piggydeux.php
Plugs into the 40 pin DIP scoket those wires are currently plugged into.

I was just about to say the exact same thing.

#4 8 days ago
Quoted from extraballingtmc:

I was just about to say the exact same thing.

I was thinking of you as I typed

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