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BAW Poll: Who has homebrew equipment they use?

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Anonymous
July 21, 2005 12:08:58 PM

Archived from groups: rec.games.video.arcade.collecting (More info?)

Bored at work today so I thought I'd ping the group and check if anyone
had any new homebrew stuff to share. It could be anything from a
monitor discharge tool to a processor emulator. I've got a 6-channel
(3+, 3-) power supply I put together a while back. I can post pics
later.

Sooo, who's got what?!?!!? :-D

- Craig
Anonymous
July 21, 2005 12:33:36 PM

Archived from groups: rec.games.video.arcade.collecting (More info?)

This sort of counts as equipment, since it's primary a test unit, but
I'm in the process of finishing my JAMMA tester. It's basically a
JAMMA cabinet that is only 8" x 6" x 5" (those dimensions include
monitor, full JAMMA controls, speakers, power supply). Just about any
JAMMA board will be bigger than the tester itself :-)

--
Mark Jenison

Craig Yarbrough wrote:
> Bored at work today so I thought I'd ping the group and check if anyone
> had any new homebrew stuff to share. It could be anything from a
> monitor discharge tool to a processor emulator. I've got a 6-channel
> (3+, 3-) power supply I put together a while back. I can post pics
> later.
>
> Sooo, who's got what?!?!!? :-D
>
> - Craig
Anonymous
July 21, 2005 12:34:21 PM

Archived from groups: rec.games.video.arcade.collecting (More info?)

I have a Z80 decryption device. It will completely decrypt almost any
z80 and even epoxy blocks if they act like an encrypted z80. It has a
little trouble with Sega's NEC 8123 but it gets all the data encyrption
and enough of the opcode that it can be completed. It takes 3 days to
do an 8123.

Dave
Anonymous
July 21, 2005 7:24:14 PM

Archived from groups: rec.games.video.arcade.collecting (More info?)

Dang... I thought you meant homebrew as to who made their own beer. :) 

I did that years ago but sold off all my equipment.

Bill

> Bored at work today so I thought I'd ping the group and check if anyone
> had any new homebrew stuff to share. It could be anything from a
> monitor discharge tool to a processor emulator. I've got a 6-channel
> (3+, 3-) power supply I put together a while back. I can post pics
> later.
>
> Sooo, who's got what?!?!!? :-D
>
> - Craig
>
Anonymous
July 21, 2005 8:54:59 PM

Archived from groups: rec.games.video.arcade.collecting (More info?)

Another reason SciFi chooses to film in Missouri (reference to earlier post
somewhere out there). Who needs Roswell and Area51 when you've got a real
life techo-whiz like Dave and his water-powered car engine, perpetual motion
machine, and Eugene Jarvis cloning facility all in his basement.... ;-)


"D Widel" <dwidel@gmail.com> wrote in message
news:1121960061.619613.161360@g44g2000cwa.googlegroups.com...
>I have a Z80 decryption device. It will completely decrypt almost any
> z80 and even epoxy blocks if they act like an encrypted z80. It has a
> little trouble with Sega's NEC 8123 but it gets all the data encyrption
> and enough of the opcode that it can be completed. It takes 3 days to
> do an 8123.
>
> Dave
>
Anonymous
July 21, 2005 9:57:37 PM

Archived from groups: rec.games.video.arcade.collecting (More info?)

I just have that lowly monitor discharge tool.... although I recently
upgraded it to have a connector on the end of the wire, thus allowing
me to secure it to the fram via a screw.

I have plans to build a portable jamma tester.... thinking small
toolbox size.... but as of yet have not started on that yet.
Anonymous
July 22, 2005 1:15:06 AM

Archived from groups: rec.games.video.arcade.collecting (More info?)

Well.. not to expose myself as an idiot or anything, but what is an
"encrypted Z80"? Are you referring to encrypted ROMs attached to a
Z80? I don't think there's anything "secret" about the uP itself!
Anonymous
July 22, 2005 1:40:43 AM

Archived from groups: rec.games.video.arcade.collecting (More info?)

The roms are encrypted yes, but the decryption circuitry is built into
the z80. It has to be to do it right, otherwise you could just hook a
fluke up to the z80 socket and read out the roms. So yes there is
something different about these z80's, although I guess technically
it's not a z80 :)  This is common for Sega games, when I get time I
plan on reproducing the sega custom z80's. I ran off some PCB's
earlier just haven't programmed the CPLD. Here's a list I pulled out
of MAME of encrypted z80's and their part numbers. It also decrypts
epoxy blocks like jumpshot, pacman plus and shoot the bull that work
like an encrypted z80 so you don't have to open up the epoxy.



CPU Part # Game Comments
???-???? Buck Rogers unencrypted version available
315-5010 Pengo unencrypted version available
315-5013 Super Zaxxon used Zaxxon for known plaintext
attack
???-???? Super Locomotive
315-5018 Yamato
315-5028 Sindbad Mystery
315-5030 Up'n Down & unencrypted version available
M120 Razzmatazz
315-5033 Regulus unencrypted version available
315-5041 M140 Mister Viking
315-5048 SWAT used Bull Fight for k.p.a.
315-5051 Flicky &
Ninja Princess (bootleg)
315-5061 Future Spy
315-5064 Water Match used Mister Viking for k.p.a.
315-5065 Bull Fight
315-5069 Star Force game by Tehkan; same key as
Super Locomotive
???-???? Spatter
315-5093 Pitfall II
315-5098 Ninja Princess unencrypted version available;
same key as Up'n Down
315-5102 Sega Ninja unencrypted version available
315-5110 I'm Sorry used My Hero for k.p.a.
315-5114 ?? pcb 834-5492 same key as Regulus
315-5115 TeddyBoy Blues
315-5132 My Hero
315-5135 Heavy Metal &
Wonder Boy (set 1a & 3; bootlegs?)
???-???? Lovely Cards


315-5162 4D Warriors & used I'm Sorry for k.p.a.
Rafflesia
315-5177 Astro Flash &
Wonder Boy (set 1)
315-5178 Wonder Boy (set 2) unencrypted version available
315-5179 Robo-Wrestle 2001 not decoded yet
317-0005 Space Position not decoded yet
317-0006/7 Gardia not decoded yet
???-???? Gardia bootleg not decoded yet


317-5012 Ganbare Chinsan Ooshoubu MC-8123A
317-0014 DakkoChan Jansoh
317-0029 Block Gal NEC MC8123B 651 packaged like
System16's 68000
317-0030 Perfect Billiard
317-0042 Opa Opa
317-0043 Wonder Boy Monster Land
317-0054 Shinobi (sound CPU) NEC MC8123B 651
317-0057 Fantasy Zone 2
317-0064 Ufo Senshi Yohko Chan
Ninja Kid II sound program also seems to use this
encryption

317-5012 Ganbare Chinsan Ooshoubu NEC MC-8123A
317-0014 DakkoChan Jansoh
317-0029 Block Gal NEC MC-8123B 651
317-0030 Perfect Billiard
317-0042 Opa Opa
317-0043 [3] Wonder Boy Monster Land
317-0054 [2] Shinobi (sound CPU) NEC MC-8123B 652
317-0057 Fantasy Zone 2
317-0064 Ufo Senshi Yohko Chan
317-0066 [1] Altered Beast (sound CPU)
??? [3] Ninja Kid II (sound CPU)
Anonymous
July 22, 2005 8:35:04 AM

Archived from groups: rec.games.video.arcade.collecting (More info?)

I use a homemade test jig for testing _Pac Man_ and _Ms. Pac Man_
motherboards on the bench. The speaker is from a boom box I fished out of
the dumpster, and the joysticks are from the good ol' Atari 2600. Coin
switches and self-test switches are salvaged from junked printers and stuff
like that.

I made another test jig for _Asteroids_ motherboards. It's just a small
perf board with some pushbutton momentary switches to make the board think
that coin switches and start buttons are connected. Also on the board are
some LEDs to simulate the LEDs inside a coin op cabinet's start buttons. I
rigged up a 9-pin connector so I can play the game on an X/Y oscilloscope
using -- again -- an Atari 2600 joystick.

(BTW -- It's best to use good-quality, powered PC speakers on an _Asteroids_
motherboard; using a Radio Shack mini-amplifier won't give you the fidelity
you need to hear the bump-bump-bump-bump background music.)

Same thing with a _Galaga_ test jig harness. I can play that with an Atari
joystick. More salvaged switches simulate coin switches and Player 1/Player
2 start. Speaker salvaged from something or other.
Anonymous
July 22, 2005 1:23:31 PM

Archived from groups: rec.games.video.arcade.collecting (More info?)

I built my own vacuum de-gasser for resins from a mason jar and a
vacuum pump. I used to use it when I worked a lot with composites
building R/C jet aircraft (fiberglass, carbon fiber, kevlar, ect). I
also built a hot wire foam cutter that used plot templates so I could
scale airfoils on the computer and produce 3D "correct to scale" foam
blanks.

All I've got arcade-wise pales in comparison- a basic test bench with a
13" GO-7 and "sparky" the HV discharge tool.

I didn't know Dave had a cloning facility in his basement, I'll ask to
see that next time I stop by :-)

Mike Doyle
Anonymous
July 22, 2005 4:16:33 PM

Archived from groups: rec.games.video.arcade.collecting (More info?)

Homebrew:
Galaga JAMMA adapter
Pac JAMMA adapter (did two for the experience, now I buy em. Time is money.)
JAMMA test rig. 1 stick, buttons for coin1, pstart1, sw1, sw2. speaker,
switcher, iso. semi-portable.
Composite primitives separator (lupine systems schem) seperates to h-v sync,
pos and neg.
various adapters to plug into the monitor iso
pinout pcb's for medium res monitors, stuff like that.

"Craig Yarbrough" <hyarbr01@harris.com> wrote in message
news:1121958538.025595.124750@g49g2000cwa.googlegroups.com...
>
July 25, 2005 1:08:48 AM

Archived from groups: rec.games.video.arcade.collecting (More info?)

got some homebrew stuff that make a pretty good beer. :) 
"rcbullock@no_spam.cox.net" <rcbullock@no-spam.cox.net> wrote in message
news:KT9Ee.40517$DC2.32049@okepread01...
> Homebrew:
> Galaga JAMMA adapter
> Pac JAMMA adapter (did two for the experience, now I buy em. Time is
money.)
> JAMMA test rig. 1 stick, buttons for coin1, pstart1, sw1, sw2. speaker,
> switcher, iso. semi-portable.
> Composite primitives separator (lupine systems schem) seperates to h-v
sync,
> pos and neg.
> various adapters to plug into the monitor iso
> pinout pcb's for medium res monitors, stuff like that.
>
> "Craig Yarbrough" <hyarbr01@harris.com> wrote in message
> news:1121958538.025595.124750@g49g2000cwa.googlegroups.com...
> >
>
>
!