R-Type Sound in Non- Nintendo cab

R3LL1K

Well-known member
Joined
Mar 3, 2009
Messages
3,471
Reaction score
32
Location
Houston, Texas
So I pulled my R-Type board out of the dedicated cab in order to test it in a Jamma cab. The game fires right up but there isn't any sound. I wanted to confirm that this is due to the game using the sound amp on the monitor so there isn't one on the game board itself, is this the case?

I plugged the game in to test it the other day after I decided to get it working and it tripped the breaker. Luckily the board works now all I have to do is go through the power section and switcher and see where the fault lies, hopefully it won't be a monitor issue. I hate working on monitors. :D
 
You have an O.E.M. R-Type board: http://www.crazykong.com/pcbs/P - S/RType.pcb.jpg

IREM designed the board to be JAMMA compliant.

BUT, the board was published by NINTENDO.

SO, the factory modified the board to work with NINTENDO cabs.

And, that's why an you hear sound in a NINTENDO cab and do NOT hear sounds in a JAMMA cab.

If the game is playing fine a NINTENDO cab., then it's working fine.

------------------------

P.S. I'm looking for an original, working R-Type board, in O.K. shape.
 
So basically it is only a couple of caps that are missing?
It looks like it would need some caps and a sound amp transistor.

You have an O.E.M. R-Type board: http://www.crazykong.com/pcbs/P - S/RType.pcb.jpg

IREM designed the board to be JAMMA compliant.

BUT, the board was published by NINTENDO.

SO, the factory modified the board to work with NINTENDO cabs.

And, that's why an you hear sound in a NINTENDO cab and do NOT hear sounds in a JAMMA cab.

If the game is playing fine a NINTENDO cab., then it's working fine.

------------------------

P.S. I'm looking for an original, working R-Type board, in O.K. shape.

I appreciate your help but your reply makes me wonder if you even read my original post? I am aware of the sound amp in Nintendo cabs being mounted on the monitor chassis, I pulled this PCB out of a dedicated R-Type cabinet afterall. I wanted to confirm the lack of sound amp on the PCB as there is a volume pot on the PCB. I have confirmed the sound works fine after hooking up a PC speaker in the cab. My speakers are DC powered so I hooked them up to the switching power supply. I didn't wire the amp into the wiring since that could blow the cab speakers or the amp when I go to use a regular Jamma PCB that has an onboard amp (as most do). I might permanently mount a subwoofer or something in the cab to improve the sound or something.

Wish I could help you as far as you needing a working PCB but I need this one for my dedicated cab.
 
Glad to heat that you've got a dedicated R-T cab. :) Sounds way cool.

On an OEM JP R-Type board, the volume pot will control the volume in a JAMMA cab. But, on the OEM US R-Type boards, the volume will NOT control the volume in a JAMMA cab (thank NINTENDO for that).

Now, I can't quite tell from the board pic., but it looks like there is a black chip attached to the big metal silvery looking heat sink in the audio section. That chip is usually an AMP chip.

--------------------------------------------------------------

Please feel free to PM me if you come across a lonely R-T board that needs a good home.
 
Last edited:
Good timing on this post. I bought an Rtype cab yesterday that was said to be not working. Got it to power up and I have picture and controls but no sound. After looking at the board where the volume control is, There is a crack on the pod. Is there anyway to replace this with a different volume control? Maybe something you could mount in a different spot. Looks to have 4 wires controlling it. I would assume 1/2 in and 3/4 out to speaker? Does that sound right?

I also need a replacement pod for the brightness adjustment. It is cracked as well, Does not look like I can solder these.

This is the first cab I purchased in non working order, Bought it cheap so I can get a better idea on how they work and fix any problems on my other ones in the future.

Eaon
 
Last edited:
Dedicated guts, But looks like someone made the cab from there old Basement walls. And I have no idea where they got the header from. Attached some pics, Hope they work.
 

Attachments

  • Rtype 1.jpg
    Rtype 1.jpg
    92.6 KB · Views: 50
  • Rtype 3.jpg
    Rtype 3.jpg
    99.1 KB · Views: 39
  • Rtype 2.jpg
    Rtype 2.jpg
    99.5 KB · Views: 131
Your R-Type boards looks odd compared to an O.E.M. R-Type board. I don't know if this has anything to do with the sound not working and all. But, it's just something I noticed.

attachment.php

RType.pcb.jpg
 
It does look different. I know the sound and Brightness pods are broken at the control part. Is there a fix for either? If I take the PCB out I will take better pics and someone can clarify if it is original.
 
It does look different. I know the sound and Brightness pods are broken at the control part. Is there a fix for either? If I take the PCB out I will take better pics and someone can clarify if it is original.

Yeah, that's a bootleg. It's still using a sanyo monitor though with the sound amp on the monitor chassis. You can bypass that sound amp if you feel like splicing into the Jamma harness sound wires? The sound wires are at positions L and 10.
 
Here's some information from my website about this:

Converting "Straight from dedicated Nintendo cabinet" style R-Type to regular "JAMMA ready" R-type (adding sound).

1: Remove the jumper wire from position C108 (+) to C102 (-)
2: Add C101 and C102. Both are 2200 microfarad electrolytic capacitors, rated at 16 WVDC, (DC Working Volts) and radial type.
3: Add C108, 1 microfarad electrolytic capacitor, 50 WVDC, radial leads.

Please pay attention to the orientation of the capacitors to be added. Since they are electrolytic capacitors, they are polarity sensitive and should be installed correctly in accordance to the silkscreened lettering on the printed circuit board.

To go back the other way, remove the above three capacitors and add the jumper wire.
 
another solution is using a external audio amp.

I got this adapter + audio amp from Mikesarcades.com
for my nintendo irem pcb, it works perfect on my Taito Egret 29 jamma arcade cab.
here is a pick
6990962833_438db05966.jpg

It sounds amazing.
 
Last edited:
r-type sound

Hi A Kraten,
I recently picked up an R-Type PCB for my Jamma cab. Could you please let me know which connector you are pulling the audio from the pcb? There's a plug at the volume control, and in your photo looks like you might be using CN5 connector? The jamma audio connections does not appear to be the right option. I know its unamplified but where does Nintendo pull the audio from this board?

Thanks for any help you can provide.
Chuck
 
Back
Top Bottom