SEGA (Super Hang On) Sound Issues...

jow

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Anyone ever experienced this?



All ROM/RAM test out as good per the self test. Is/are there sound chips on the PCB? I have a parts PCB that I could try swapping off of to test?

Its been a 5 month long adventure with this effing game. Its finally playable but my 3 year old isn't having it with the sound turned down, haha.
 
FWIW, the I believe Super Hang-On runs on the same hardware as Outrun. I looked at the SHO schematic for the sound, and it certainly appears (at a glance) to be identical to OutRun.

I wrote a brief description of the OutRun sound hardware schematics here (should also apply to SHO):
http://forums.arcade-museum.com/showpost.php?p=1780106&postcount=6

But before you dig into the PCB, you might want to rule out your amplifier. You should be able to hook up the audio output to, say, a set of amplified PC speakers. If it's gone, the problem is with your amp. If it sounds the same, the issue lies on the game PCB.

An audio probe could prove handy for checking through the audio section to find out where things go bad: http://forums.arcade-museum.com/showthread.php?t=202473
 
Jow, I think this game rocks and hope you get it working. I played one 2 weeks ago and loved it.

I know you are BS'ing me but thats OK. Sammy loves it and thats all that matters my friend. You will NOT bring me down!
 
FWIW, the I believe Super Hang-On runs on the same hardware as Outrun. I looked at the SHO schematic for the sound, and it certainly appears (at a glance) to be identical to OutRun.

I wrote a brief description of the OutRun sound hardware schematics here (should also apply to SHO):
http://forums.arcade-museum.com/showpost.php?p=1780106&postcount=6

But before you dig into the PCB, you might want to rule out your amplifier. You should be able to hook up the audio output to, say, a set of amplified PC speakers. If it's gone, the problem is with your amp. If it sounds the same, the issue lies on the game PCB.

An audio probe could prove handy for checking through the audio section to find out where things go bad: http://forums.arcade-museum.com/showthread.php?t=202473

See, I think its PCB related because the other sounds are OK? I forgot to mention that when I first tried getting this going, the music was OK, but there were no motorcycle sounds. As the game stayed on, and I played it, the sound issue with the motorcycles started? Strange.

I read online that the Z80 on Sega PCB's were related to sounds? Is this true (forgive me for not clicking your link at work yet)? I have a spare PCB I can try and swap Z80s?
 
I know you are BS'ing me but thats OK. Sammy loves it and thats all that matters my friend. You will NOT bring me down!

I am dead serious. I played the sit down version that leans right and left. What a blast. Layney sat right up on the gas tank while the old man gave him a ride through an unforgiving race course. Loved it.
 
See, I think its PCB related because the other sounds are OK? I forgot to mention that when I first tried getting this going, the music was OK, but there were no motorcycle sounds. As the game stayed on, and I played it, the sound issue with the motorcycles started? Strange.

I read online that the Z80 on Sega PCB's were related to sounds? Is this true (forgive me for not clicking your link at work yet)? I have a spare PCB I can try and swap Z80s?

Yes, the sounds are run by a Z80. Feel free to swap in another Z80, but I kinda doubt that's the issue. If the CPU were bad, I wouldn't expect any sound whatsoever.

BTW, the links I posed are links to other threads and post on this forum... so if you're posting, you shouldn't be scared to click on them :)
 
I am dead serious. I played the sit down version that leans right and left. What a blast. Layney sat right up on the gas tank while the old man gave him a ride through an unforgiving race course. Loved it.

Dude, sweet!

Where did you play it at? The sit down version is great, and they are usually cheap. Maybe one day I will be able to upgrade. My one vivid memory of that sit down version was at my 7th birthday part at Chuck E Cheese. My Uncle raced motorcycles for a living, but never played video games. He saw that game and played it my entire party. It was awesome.

Love the music of this game so I'm really hoping I can get this PCB fixed.
 
Dude, sweet!

Where did you play it at? The sit down version is great, and they are usually cheap. Maybe one day I will be able to upgrade. My one vivid memory of that sit down version was at my 7th birthday part at Chuck E Cheese. My Uncle raced motorcycles for a living, but never played video games. He saw that game and played it my entire party. It was awesome.

Love the music of this game so I'm really hoping I can get this PCB fixed.

Vaca with the fam:
photo.jpg

photo1.jpg
 
Darren,

Got this email from a gentleman in the UK who repairs SEGA PCBs.

That sound problem is in the digital audio section It's most likely to be one or both of the 6116 type SRAMs in the PCM circuit

Are those chips that can be swapped from my other PCB?
 
I too am the proud owner of this awesome turbocharged motorbike racing game.

Hope you can solve the sound problems.

I hope so, too. It really is a great game. Seems to be HUGE in the UK as well huh?
 
Darren,
Are those chips that can be swapped from my other PCB?

Sure, anything can be swapped from another PCB, assuming you are good at desoldering.
I kinda doubt anything other than the EPROMs are socketed...
 
Sure, anything can be swapped from another PCB, assuming you are good at desoldering.
I kinda doubt anything other than the EPROMs are socketed...

Yeah, they arent. I was looking at a schem online.

I have an extra PCB with no sound issues, so Im going to swap that top PCB (since it controls audio) with the bad one and see if that fixes it.
 
Wasn't/ isn't this huge in the US ??

This game was HUGE in Europe in the late 80's

Im not sure, cause I was only 6 at the time it came out. I always loved playing OutRun, Super Hang On, Thunderblade and Afterburner though. Those were 'classic' to me being born in '81. Sega was arcade goodness.
 
Darren,

Got this email from a gentleman in the UK who repairs SEGA PCBs.

Are those chips that can be swapped from my other PCB?

The 6116 RAMs are the ones labeled as TMM2115 or TMM2015. These Sega PCBs are a bugger to desolder though, I got caught out first time and nearly damaged the PCB. I should add that Im an experienced solderer too. They are 4 layered, and the +5v and GND copper planes are hidden. They must be huge though, as I needed to pass through ALOT of heat to the +5v and GND pins to remove the ICs. Even then, I had to prise them off whilst applying heat, if I tried to remove with a sucker the solder cooled down too quick. Using a solder station at 450 degrees, I had to leave the iron on the solder for around 7-8 seconds before it melted.
 
Yeah, I didn't mess with the desoldering of anything.

I did learn that in the Super Hang On 2PCB stack, that the bottom PCB is mainly graphics, and the top is mainly audio. I had a spare PCB that had graphics issues, but working audio. I took that working audio PCB and matched it with the other PCB that had working graphics, and I now have a 100% working Super Hang On board.
 
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