Crazy Climber sound problem.. whoops.

Ghostlyguy

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Crazy Climber sound problem

My Crazy Climber has a strange sound issue where when your climber is climbing the building you don't hear any of the "climbing sounds" or the odd grunts the climber makes. Yet there is the music when you approach the vulture, ape, chopper or when you fall or start.

Before I start digging into the game. What do you guys think the sound issue is being caused by?

To tell the truth I didn't even know that some sounds were missing till I saw a video!:eek: :eek:
 
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i believe it is somewhere on your game board... i have a phoenix that everything works great you just dont hear sound of ships coming at you. i do didnt even realize until the one day that sound worked and i was like....oh ya i forgot about that. i also had a donkeykong that you could see everything except mario and donkey kong(missing sprites.)i believe these are little tougher issues to find.
 
Bumping this to see if you ever found the cause? I have a board that does the exact same thing.
 
The voice sounds are on the EPROM's. I don't know if it'd be the same, but Crazy Kong uses the same sound EPROM's (from the Japanese version though, so the sounds are slightly different). I had a Crazy Kong board that wasn't playing any of Crazy Climber sounds, and it turned out an LM3900 chip was bad. Perhaps check into that, see if there's any on your board. Piggybacking it brought back the sounds, but I eventually removed the bad one and soldered in a new one. Might be worth looking into anyway.
 
The voice sounds are on the EPROM's. I don't know if it'd be the same, but Crazy Kong uses the same sound EPROM's (from the Japanese version though, so the sounds are slightly different). I had a Crazy Kong board that wasn't playing any of Crazy Climber sounds, and it turned out an LM3900 chip was bad. Perhaps check into that, see if there's any on your board. Piggybacking it brought back the sounds, but I eventually removed the bad one and soldered in a new one. Might be worth looking into anyway.

Heh... thanks for posting this. It finally made me get off my butt to look at the schematics. Looks like that could definitely be one of the possibilities. Think I'll probe around a little tonight after work to see if that's it. Also looks like 5S(157) or 8S(4066) could bork up the "voice" sounds.

Thanks again. :beerchug:
 
I have a CC on the bench at the moment with this exact fault, have fixed its other issues so this is next on the list, may get a chance this weekend.
 
Heh... thanks for posting this. It finally made me get off my butt to look at the schematics. Looks like that could definitely be one of the possibilities. Think I'll probe around a little tonight after work to see if that's it. Also looks like 5S(157) or 8S(4066) could bork up the "voice" sounds.

I wish I could take credit for figuring that out, but someone over at dragonslairfans.com had the same issue on his Crazy Kong board and that was the fix. Luckily my local electronics store had one package of LM3900's left, so it was easy to check. This brought back the sample sounds, but the wrong ones. I had 3 other issues I did figure out and fixed (one was having to leave an empty socket between the program and sound ROM's on this particular ROMset, another was the sound ROM area being strapped for 2532's instead of 2732's for some reason. It also had a bad AY-3-8910 PSG which made the music bad that I fixed awhile ago). Was satisfying fixing it though, especially since it was a somewhat rare version :)
 
Well alrighty then... seems the LM3900 at location 8p was indeed defective. :) There was a pin stuck high and replacing this chip restored all the lost sounds.

Huge thanks CrazyKongFan for the direction! :beerchug:
 
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Well alrighty then... seems the LM3900 at location 8p was indeed defective. :) There was a pin stuck high and replacing this chip restored all the lost sounds.

Huge thanks CrazyKongFan for the direction! :beerchug:

Whoot!
Can I start sending my busted boards to you :)
cheers
/Tim
 
Sure... they can sit here on my big ol' pile of busted boards just like they sit up there on your big 'ol pile of busted boards. :D
 
Well alrighty then... seems the LM3900 at location 8p was indeed defective. :) There was a pin stuck high and replacing this chip restored all the lost sounds.

Huge thanks CrazyKongFan for the direction! :beerchug:

Glad it was something simple...I like simple fixes :D I know that LM3900 can cause other games to lose sound too. Someone (can't remember if it was here or another forum) was having problems with some missing sounds on a Space Invaders board, and it has one LM3900 for each sound and some were bad.
 
Did this sound issue get resolved?

My Crazy Climber recently developed the same issue (music only, no climbing or hit effects and no voice) after working just fine for the few years that I've had it.

I have a Nichi cabinet and boardset.

I have replaced the five caps on the boardset, no improvement.

The chip at 8P on my boardset is a MC3301P (top board) and D2125A (bottom board)

Is one of these the same as the LM3900 mentioned previously?

Thanks
Joe G.
Houston TX
 
Joe, if you don't get an answer, you can PM Jeff F. He doesn't repair on the side anymore, but his knowledge is great and he can hopefully point you in the right direction.
 
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