(Topic ID: 91927)

TWILIGHT ZONE 9.4 Chip issue

By mrdoarcademan

4 years ago

Topic Stats

  • 13 posts
  • 7 Pinsiders participating
  • Latest reply 4 years ago by mrdoarcademan
  • No one calls this topic a favorite


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#1 4 years ago


I need a little assistance. I took off the power board and replaced the TZ chip with the Home 9.4 one. Now it wont boot up. The lights come on, and I hear the "ding" for errors but that is it. Any clues? I re-pushed the connectors and took photos before I started to ensure I replaced them all correctly. Thanks much everyone.


#2 4 years ago

not sure why you took off the board. However, if you put back in the old chip does the game boot? this will tell you if the new chip is faulty..

#3 4 years ago

I couldn't get to the chip. Dang door kept getting in the way. After putting the old chip back on it still didn't work
Any more clues?

#4 4 years ago

Make sure the ribbon cable between the DMD board and DMD is plugged in. Could be disconnected there.
Are you getting more than one ding when it boots up?

#5 4 years ago

Just one ding

#6 4 years ago

The bong is the sound board booting, you either have a cable off a pin somewhere or damaged the socket while changing roms. Or maybe you installed the roms backwards?

#7 4 years ago


#8 4 years ago

Are you talking about taking off the power board or the MPU?

#9 4 years ago

image.jpgThanks a lot for all of the advice. I found the issue. 3 little prongs are analoed off the board.

Do I send it off to coinop cauldron or any suggestions?


#10 4 years ago

Having a hard time understanding your text/picture.

Are you saying that 3 of the male pins from the CPU board have been permanently attached to the ribbon cable and, hence, are no longer attached to the CPU board?

In other words, are you saying that 3 or so pins have broken off the CPU board where it connects to the short ribbon cable?

#12 4 years ago

Are they bent, or completely broken?

If they are bent, it's not too hard to straighten them with needle nosed pliers

2 weeks later
#13 4 years ago

Hi. They actually broke off. I just sent it coin op cauldron and got it replaced. Thanks a lot

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