texasmame
Well-known member
Galaga - explosions only - Local Galaga to test?
EDIT: *********GAME SOLD***********
EDIT: BOARD RETURNED, REFUND ISSUED.
Have a Galaga that had no sound except explosions.
Ordered a working boardset from a KLOVer and - same issue. So, I'm presuming it's something with the rig I have.
A switcher was in there when I got it. That switcher gives just under 5V and just under 12V. Put another switcher in there and get just *over* the 5 and 12 but still no change - no sounds except "boom."
Other sounds, as well as the music, produce some faint static-like noise from the speaker - so you can tell the boardset is wanting to produce the sounds.
Pinouts look okay, grounds test, etc.
I would highly doubt that two boardsets would have the exact same issue - that it must be something in the wiring in the cabinet I have. Especially since one boardset was as fully working from a KLOVer.
So, before I get into any replacing of parts, pulling chips, etc. on what's likely a fully working board, my questions:
What are the proper voltages to be getting at the 4 caps in the audio section, left to right?
1 2 3 4 edge of board
On cap 3 - that's the only one where I get 12v. 1 and 2 are around 3v and cap 4 is 5v but it was like this on both boardsets, so I'm presuming this is correct?
Also, anyone local to Dallas have a working Galaga so I can test this board and confirm it's something with my rig?
TIA!
EDIT: *********GAME SOLD***********
EDIT: BOARD RETURNED, REFUND ISSUED.
Have a Galaga that had no sound except explosions.
Ordered a working boardset from a KLOVer and - same issue. So, I'm presuming it's something with the rig I have.
A switcher was in there when I got it. That switcher gives just under 5V and just under 12V. Put another switcher in there and get just *over* the 5 and 12 but still no change - no sounds except "boom."
Other sounds, as well as the music, produce some faint static-like noise from the speaker - so you can tell the boardset is wanting to produce the sounds.
Pinouts look okay, grounds test, etc.
I would highly doubt that two boardsets would have the exact same issue - that it must be something in the wiring in the cabinet I have. Especially since one boardset was as fully working from a KLOVer.
So, before I get into any replacing of parts, pulling chips, etc. on what's likely a fully working board, my questions:
What are the proper voltages to be getting at the 4 caps in the audio section, left to right?
1 2 3 4 edge of board
On cap 3 - that's the only one where I get 12v. 1 and 2 are around 3v and cap 4 is 5v but it was like this on both boardsets, so I'm presuming this is correct?
Also, anyone local to Dallas have a working Galaga so I can test this board and confirm it's something with my rig?
TIA!
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