(Topic ID: 53889)

Pinball Champ 82 sound problem

By arakissun

10 years ago



Topic Stats

  • 6 posts
  • 3 Pinsiders participating
  • Latest reply 6 years ago by Zac1
  • Topic is favorited by 2 Pinsiders

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#1 10 years ago

OK after many repairs it left the sound problem.Please watch these two videos
On first video the music,the sound effects are something incorrect-music sometimes suddenly stop,sometime is ok.When it's ok,after pressing some of the switches work,but after 3 or 4 switches begin to go incorrect

On second video when I press some of the two flipper buttons scores points and again I can here some strange sounds

I think is some of the ROM on the sound board,CPU ot the PIAs,but what can it be?
I clean the ROMs pins
Board have some cold points
Reflowed the connectors
Changed the CPU socket(but not the CPU)

#2 10 years ago

Changed the CPU and the two PIAs on the sound board-still the same
I begin to think that the problem is in the MPU board

#4 10 years ago

Problem with the scoring is fixed,now I see the repair info

#5 10 years ago

I think as you about the IC7 and IC12.I will replace them and will see what will happen

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