Cloud
n00b
- Joined
- Sep 10, 2018
- Posts
- 10
Hello everyone,
The last time I posted new thread someone told me that I should do some introduction to myself so there I go .
INTRO
My name Is Marcin, I'm from Poland I'm a retrogaming enthusiast like most of you I think . Currently I own over 60 consoles (many doubles) and a collection of over 850 games in total. It is hard for me to pick just one favorite system so I picked three - NeoGeo MVS (or arcade in general), Sega Genesis and NES.
That much for the general info. Now about my background in arcade. I'm collecting arcade games for like 3 years now but I played MAME since I was 10 or so :P. Most of my collection consist of MVS cartridges although I have some arcade PCBs as well and an actual vintage arcade cabinet. I also have my raspberry pie set up to work with crt tv and recently I digged out my old pc to try out the groovy mame. Apart it is loud as hell it otherwise runs beautifully. Two years ago I consolized my first MVS system and since then I did two more and bough a supergun online from Retroelectronik (i hope I haven't misspelled the name). Since then I always wanted to take on the project to create one for myself and here is the reason why I'm starting this thread .
I hope you guys will help me with the issue I came across. Please note that I do not have any electronic education whatsoever so I hope for your understanding. All I know is self thought through learning by doing. Oh and my English is lacking in some areas so please forgive me that too .
DESCRIPTION
Recently I've put together a supergun setup using ATX power supply from an old PC. I took care to pick a PS that supports -5V line. Firs I got rid of the all unnecessary cables and left only what is essential. I forgot that to start a PS I need to shorten the "PSU ON" with the ground so I need to add the momentary push button later on this project but for now a simple bridge with a cable will do.
I wired everything as in this schematics:
https://mega.nz/file/O34H1boK#MWyqB_Cq7DyIjPWiZGaQbVPVE3OFK-XN-Acduv3evVk
Then I connected the wires to the SCART socket like so:
https://mega.nz/file/uqwjQbRZ#EIQwfWAznZqK-cctlJX8HjRpTJlYKsqcru98FPk6VNQ
And... It does not work :/. I thought of some issues that may occur so also did this things:
- I've checked if the PSU actually works on an old PC. It did.
- I've checked weather the power cables after reattaching them together are at the same position as before de-soldering.
- I've checked with continuity test if there are no broken wires.
- I've checked the power switch for continuity when it is in its ON position.
- I've checked whether the game boots on the other hardware.
- I've populated the JAMMA cable with missing wires (except for key) just to be sure.
- I've checked if the jamma edge connector and SCART are connected in a proper manner.
- I've checked several different power cables and yes they work (PC turns on and the PSU in my supergun starts quietly buzzing when turned on).
- The fuse on the PSU is intact. Also checked with continuity test.
Then ting that I know I did wrong is when I put 22 Ohm resistors on RGB signals instead of 220 Ohm ones but I doubt I would change anything is case of simply working.
I've ran out of ideas what cloud I did wrong here. Probably it is something simple. Something that I cannot see... So I need someones help on this. I will try to make some pics of the actual hardware although it is a tangled mess so don't hate me :P.
Many thanks for any help! I would appreciate even smallest advises !
The last time I posted new thread someone told me that I should do some introduction to myself so there I go .
INTRO
My name Is Marcin, I'm from Poland I'm a retrogaming enthusiast like most of you I think . Currently I own over 60 consoles (many doubles) and a collection of over 850 games in total. It is hard for me to pick just one favorite system so I picked three - NeoGeo MVS (or arcade in general), Sega Genesis and NES.
That much for the general info. Now about my background in arcade. I'm collecting arcade games for like 3 years now but I played MAME since I was 10 or so :P. Most of my collection consist of MVS cartridges although I have some arcade PCBs as well and an actual vintage arcade cabinet. I also have my raspberry pie set up to work with crt tv and recently I digged out my old pc to try out the groovy mame. Apart it is loud as hell it otherwise runs beautifully. Two years ago I consolized my first MVS system and since then I did two more and bough a supergun online from Retroelectronik (i hope I haven't misspelled the name). Since then I always wanted to take on the project to create one for myself and here is the reason why I'm starting this thread .
I hope you guys will help me with the issue I came across. Please note that I do not have any electronic education whatsoever so I hope for your understanding. All I know is self thought through learning by doing. Oh and my English is lacking in some areas so please forgive me that too .
DESCRIPTION
Recently I've put together a supergun setup using ATX power supply from an old PC. I took care to pick a PS that supports -5V line. Firs I got rid of the all unnecessary cables and left only what is essential. I forgot that to start a PS I need to shorten the "PSU ON" with the ground so I need to add the momentary push button later on this project but for now a simple bridge with a cable will do.
I wired everything as in this schematics:
https://mega.nz/file/O34H1boK#MWyqB_Cq7DyIjPWiZGaQbVPVE3OFK-XN-Acduv3evVk
Then I connected the wires to the SCART socket like so:
https://mega.nz/file/uqwjQbRZ#EIQwfWAznZqK-cctlJX8HjRpTJlYKsqcru98FPk6VNQ
And... It does not work :/. I thought of some issues that may occur so also did this things:
- I've checked if the PSU actually works on an old PC. It did.
- I've checked weather the power cables after reattaching them together are at the same position as before de-soldering.
- I've checked with continuity test if there are no broken wires.
- I've checked the power switch for continuity when it is in its ON position.
- I've checked whether the game boots on the other hardware.
- I've populated the JAMMA cable with missing wires (except for key) just to be sure.
- I've checked if the jamma edge connector and SCART are connected in a proper manner.
- I've checked several different power cables and yes they work (PC turns on and the PSU in my supergun starts quietly buzzing when turned on).
- The fuse on the PSU is intact. Also checked with continuity test.
Then ting that I know I did wrong is when I put 22 Ohm resistors on RGB signals instead of 220 Ohm ones but I doubt I would change anything is case of simply working.
I've ran out of ideas what cloud I did wrong here. Probably it is something simple. Something that I cannot see... So I need someones help on this. I will try to make some pics of the actual hardware although it is a tangled mess so don't hate me :P.
Many thanks for any help! I would appreciate even smallest advises !