(Topic ID: 26176)

Bone busters not booting up

By southofi-10

11 years ago



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#1 11 years ago

Got a Gottlieb bone busters I can't get to boot up,or go into game over mode.
No display,no sound.
Mpu has been replaced with a confirmed working one with new roms.
All fused have been checked
All I get are a few lights on.
Any help would be appreciated

#4 11 years ago

Great-So I adjusted the 5v and now I got boot up.Thanks
Game now boots and plays(somewhat),but I get no sound.
I have the volume all the way up and can barely here the faint sounds.Checks all connections and all is good.Just no sound.
Also,a few of the digits in the display are much brighter than the others.Is this the driver IC?
I appreciate any help.This machine has been sitting for 10 years without a pulse.Now it has a pulse.Once we bring up the volume,it'll be a great game.
I'm indeed located south of I-10 in Lafayette louisiana.
The game is not for sale.I'm doing repairs for a friend,then I'll clean the buster up ( shop playfield)

#7 11 years ago

Yes- I hear the correct game tones,just barely.If I stand right at the speaks
I'm thinking (oh no!!) it might be the amp IC on the aux sound board,but I'm not real good at checking this type of stuff.I'm a EM guy myself,LOL
But yes,the sound is there,just not audible.
Thanks

Also,I don't think the display needs recharged,I think the 2 digits have something wrong.The display itself is bright enough,just 2 digits much brighter than the rest.

#9 11 years ago

Looks like I need to change the LM324 chip

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