(Topic ID: 302368)

Black belt Bally lose the sound.

By albertoxxx

9 months ago

Topic Stats

  • 3 posts
  • 2 Pinsiders participating
  • Latest reply 8 months ago by frunch
  • No one calls this topic a favorite


Linked Games

Topic Gallery

View topic image gallery

IMG_20200519_202749 (resized).jpg

#1 9 months ago

Good morning everyone. I have a problem with the sound of a Bally black belt, it has the TCS card. The sound goes away after a while of playing. At first it works fine, but after half an hour of playing, the sound goes away, I turn it off and turn it on again, the sound does not return, and if I leave it off for a while and turn it on again, it already has sound, but then it goes away again. If I leave the pinball with the game started, the sound does not go away, it only goes away when a switch is activated, I imagine when the cpu requests some sound or effect from the audio card. I have already cleaned the wiring harnesses, I have already changed the capacitors of the audio card and the power card, resolve all the points of both cards, in the 5v voltage of the audio card, I have 4.9v, the voltage does not vary with or without sound. The VR1 potentiometer is new, the coin door potentiometer is already clean and working well. When there is no sound, with the logic tip verify that if the request for sound from the CPU arrives. I suspect some integrated circuit. Please help!

IMG_20200519_202749 (resized).jpg
1 month later
#2 8 months ago

Well after going back on the electronic diagram, and thanks to the freezing spray, I discovered the cause of the loss of sound. The processor of the audio card .. mc68b09. I leave the solution for someone else. Greetings.

#3 8 months ago

Thanks for following up with the fix! This will help some folks in the future.

Promoted items from the Pinside Marketplace
$ 9.95
$ 59.99
Cabinet - Shooter Rods
Pinball Shark
$ 49.99
Cabinet - Shooter Rods
Pinball Shark
$ 55.00
From: $ 18.00
Apparel - Men
Pinside Shop
From: $ 189.00
$ 18.95
$ 10.00
Yorktown Arcade Supply
$ 19.00


Wanna join the discussion? Please sign in to reply to this topic.

Hey there! Welcome to Pinside!

Donate to Pinside

Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, become a Pinside+ member!