Smash Tv sound problem

[redfivexw]

I am having trouble wiring up a smash tv.  I have everything wired, i have sound but no voice.  The announcer's voice and other voices are not there.  I have the music and sound of bullets firing, but that is it.  I have 2 of each board (video and sound) and have tried all variations and it makes no difference.  Anyone have any insight on this?

[DeLuSioNal29]

Smash TV uses a -5v connector.  Without it connected it will suffer from strange sound.  I have a Smash TV arcade at home.

Do you have any pics of the board and how you have it connected?  Post them here.

D

[Q*Bert_OP]

Remove and reseat the sound roms one at a time. Try another ribbon cable between the CPU and sound CPU. Be sure the red stripe on the ribbon cable goes to pin 1 on both boards.

[redfivexw]

thanks for the advice, i don't think it can be the chips on the board, i have 2 complete sets of boards here, sound and game and i have the problem no matter what i do.  I may not have connected -5V, however, i will check that.  I dont think the harness even had that input.  I will post some pics of the boards shortly, thanks for your help!

[redfivexw]

here are the photos of my boards, the first is the PCB, the second is the sound, the third is a wire that i have idea where it goes.  It is a single white wire located in the lower left of the board near the jamma connection.  Otherwise, everything else is hooked up according to the instructions i have here.  I dont know if that one wire could be the problem.  It is weird, i did a sound test and there are 5 tests, 2 music ones sounded perfect, 1 was distorted, and there were 2 voice tests and i got nothing.  The game just is not fun without the voice!

[redfivexw]

Definitely no -5v, i double checked.  I will wire that in directly tonight, if anyone knows what that missing wire is, i would appreciate that as well.

[DeLuSioNal29]

Yep, mine was distorted too before I used the -5v connection.  I'm almost positive that's what it is.

I'll check my machine tonight when I get home and let you know.  In the meantime, I'm going to try to dig up some pics that I sent via e-mail to Bob Roberts (he's a vendor that makes cables and such for boards among other things).

Also, did you grab the manual for the PCB?  If I recall, there's a typo in there for -5v and where it's connected.  I'll look into it.

Stay tuned.

D

[Malenko]

Definitely no -5v, i double checked.  I will wire that in directly tonight, if anyone knows what that missing wire is, i would appreciate that as well.

heres the link to the manual, they dont really say what the connector goes to

http://pdf.textfiles.com/manuals/ARCADE/S-Z/

[DeLuSioNal29]

I dug up the pics (found it in an e-mail)







As for the typo in the manual... Found it:  The manual has -5v mis-labeled as +5v for pin # 6 on the J2 connector (diagram 3-22 on page 54 of the pdf file) but correct in the other diagrams.

Also, check your ribbon cable, I can't tell, but it looks like you may have it connected wrong.  Make it match my pics above.  These pics were taken from a working setup.

DeLuSioNaL29

[redfivexw]

BINGO!  GOOD LUCK, YOU'LL NEED IT!!  that is what i heard after i connected the -5V.  Thanks everyone, now i just have to find those pleasure domes!   

[DeLuSioNal29]

"I'll buy that for a dollar!"

Great news!  Glad you got it working.

D