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Hello, about voltage actually it was a little high: 5,3 v so I lowered it to 5,01. Measured both on jamma socket and on a IC on the board. About the chips I dumped them in order to have a backup. I.m going to check them against the current version. About the audio I'm going to desolder 32j9...

Hello Ekorz, I finally found a working romset taking the latest name version but from another site than name. Because I don't get how to get the ROM from the mameset and also where to get the mameset itself. Please be patient to me... Anyway once the first test went ok there was an issue with...

hello, checked the enablement lines on the roms and they are toggling correctly as it seams, at least until the error is found. The strange thing is that after flashing the previous error roms (ic 33, 34) the error is now switched to the other 2 roms (14, 26). So I'm thinking that something is...

You made mi notice that ram chips are tested ok. I already checked with the multimeter the socket and all the tracks. I'll double check it. Should I desolder it and replace it with a new one? Maybe checking if the underneat track are ok. At the moment I have a manual suction tool but for a...

Hello, I'm working at this drive out bootleg jamma pcb that has a corrupted image on some screens and it's totally messed up of black on others. I have another one working so I swapped the eprom am27c040 (number 8) which is causing the issue and also the 2 mc74hc273 on the left with it and the...

hello Ekorz. some board pictures and the error. And the rams that should be connected to those. With eprom a12 inserted I checked them and there are no floating signals. The top one is connected to the first 2 eprom from the top (a13 and a15) and the bottom one to the last eproms (a14 = IC33...

Hello, I'm looking into this jamma board. Once upon a time it was starting but with no figures sprites but now it's giving error on ic33. A strange error actually: IC33 fail 5CXXX IC33 PASS XXXXX IC26 PASS XXXX IC14 PASS XXXXX Since the game EPROM are 4: IC33,IC34,IC26 AND IC14 I'm suspecting...

why would you do that? you don't have the original arcade cabinet? the potentiometers connected to the steering wheel and brake and accelerator are linear 5k ohm so you should check what is inside your pc wheel and if there is some electronic circuit in between. In case adapt the connectors.

if I can, I'll do. What you need to do?

Hello, thanks for checking. On my side I'll try to connect it following the schematics

hello Justin and thanks for your feedback. I found that there are 2 versions of the radio console one with and one without the green button. The green button should serve to transfer the coin to the related player, just if you have a single coin door. I found also on the manual the wiring. Just...

hello, did you find the parts you were searching for? Meanwhile can you please tell me how and where are the 2 green buttons on the radio console connected? I would really appreciate it. Thanks