taito gnet help

[zlk]

I just bought a taito gnet motherboard and psyvariar and nightraid carts. When I try to play either of them they start to load and then I get some flashing text (red/white) at the bottom of the screen. It looks like they load 25% of the way, then in the loading area is more Japanese text and everything stops. Does anyone have any idea what could be going on?

Here is a picture of what happens (stolen from the killercabs forum):

http://neoarcadia4.free.fr/puzz1.jpg

I am also trying to play them on an atomiswave cab.

Thanks.

[oxtsu]

Maybe the owner before you removed a card while loading and FUBARed the FLASH memory.

[PC Engine Fan X!]

For zlk,

I had one Taito G-Net mobo that upon accidentally inserting a Taito G-Card wrong (while "powered-down", of course) + plus some slight built-up static discharge on my part = ending result of a FUBAR G-Net mobo. It's recommended to have a spare G-Net mobo in case your first G-Net mobo goes "up in smoke"... ^_~

I'd demand my money back (assuming that's possible) and get another 100% working Taito G-Net mobo from another reputable source instead. ^_~

And as for your Taito G-Cards of Psyvariar Medium Unit and Night Raid -- they should be in good shape when you get a second Taito G-Net mobo to test them out..... ^_~

I find it really odd that the more expensive Taito G-Card version of Night Raid can't save your high scores upon powering down for the night whereas on the PSX CD-Rom version of Night Raid, one can save the Night Raid high scores and game settings on a paltry 1MB PSX memory card. Why is that? ^_~

Of course, the high scores of the Taito G-Card version of Psyvariar Medium Unit will save to the cartridge itself for posterity -- so no need to worry about that. ^_~

What's even cooler is that the Taito G-Card of Psyvariar Revision does save high scores + the highest scoring Superplays for each stage respectively directly to the G-Card itself. So each Taito G-Card of Psyvariar Revision (assuming certain criteria -- i.e. -- masterful gameplay and 1CC of each respective stage is met) out there in the wild has some cool individual Psy-R Superplays stored in those G-Card cartridges. ^_~

The maximum of data storage space of a Taito G-Card, according to Taito themselves, is 320MB..... ^_~

PC Engine Fan X! ^_~

[zlk]

I tested the board in another cabinet and it worked fine.

Now I need to find out what is wrong with my cabinet.

[Dave_K.]

Interesting situation. I also recently purchased a gnet mobo w 3 shmups cards, and didn't have any problem. So please let us know what you find out about that one cab.

[Dave_K.]

So these mobos are like PCBs with swappable games?

Yes, the mobo is actually a sony zn1 with a supporting taito daughterboard with pcmcia slot for swapable game roms.

[dpful]

I tested the board in another cabinet and it worked fine.

Now I need to find out what is wrong with my cabinet.

bad voltage? Would you try it again in the bad cab- I've had games show loading errors depending on how I loaded it last (can't remember exactly what it was-- like one game wouldn't work, then another one would, and then the first one would work again).

Check your credit wires, too. Maybe they are set for always on instead of always off or something (just since it says something about credits on the loading screen)

[zlk]

Check your credit wires, too. Maybe they are set for always on instead of always off or something (just since it says something about credits on the loading screen)

How do I check the credit wires?

Tonight I checked the voltages of both cabs, they are about the same. I am not sure what to do next. There has to be something different in the "bad" cab, but I am not sure what.

On the taito g-net motherboard there is a small toggle switch next to the volume. Does anyone know what it does and if it should be up or down?

[dpful]

the toggle should say "stereo" and "Mono" next to it. Mono for normal jamma- I think stereo only if you have extra speaker wires hooked up the the front of the board.

The microswitches on the coin mech (as well as on all joystick and buttons) have 3 connections on them. One is ground, one is 'normaly closed' and one is 'normally open', so you could try switching that, although that's probably not the problem. A 'normaly closed' coin switch would cause credit errors to come up on lots of games. Although... if someone was using the wire to touch themselves extra credits and then left it on the wrong one...

I can't remember which ones you're supposed to use, but all the other buttons are wired for 'normaly open', so make it match those. Better yet, in case the switches look different, load up some game's test menu and see if it's set to normaly on or off.

For bonus fun, switch all your buttons to normally closed and then play street fighter where letting go of the buttons makes you punch.

[PC Engine Fan X!]

the toggle should say "stereo" and "Mono" next to it. Mono for normal jamma- I think stereo only if you have extra speaker wires hooked up the the front of the board.

I can vouch that the Taito G-Net outputs in true stereo very nicely -- up to a 100 watts twin speaker setup rated at 8 ohms and still the ol' G-Net mobo doesn't even break a sweat! ^_~

You can use a PC CD-Rom stereo harness connection (salvageable from an old PC tower if you've got one laying around somewhere) with the Taito G-Net and viola! Instant stereo capability...sounds so much better in stereo than if one were to go with just the ol' plain vanilla "mono" sound output through the Jamma harness connection method. ^_~

PC Engine Fan X! ^_~

[zlk]

After doing some further testing, I found out what the problem is. The "6" connector in the Jamma harness of the good cab and bad cab both tested fine without a pcb connected to them. For some reason, once a pcb was connected, the voltage in the good cab read 11.808. In the bad cab, the volage was all over the place constantly changing from 5 to 11.

Now I just need to figure out how to fix/replace the power supply.

[dpful]

I use power supply's taken from old PC's. They've always worked great except for on really old boards or bootlegs that might need a 5v adjustment. Most of them have the voltages of the wires written on the sides.

[starke]

Is the stereo output highlevel or lowlevel and what is the pinout on the 4pin connector?