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Author Topic: Capcom CPS1 / CPS2 Games  (Read 46244 times)

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Offline channelmaniac

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Re: Capcom CPS1 / CPS2 Games
« Reply #20 on: May 07, 2014, 07:35:05 PM »
Model: Warriors of Fate
Symptom: Dead

Removed battery, cut 2 traces, and added one jumper to the C board. Replaced ROM 23 with the Phoenixed version of code.

Removed R33 and C12 then jumpered across C12 on the Qsound board. Cut the jumper between pins 30 and 31 on the sound EPROM. Added a jumper from pin 27 of the Kabuki CPU to pin 31 on the sound EPROM. Replaced the sound EPROM with the Phoenixed version of code. Tested.
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Re: Capcom CPS1 / CPS2 Games
« Reply #21 on: May 07, 2014, 07:35:15 PM »
Model: Captain Commando
Symptom: None. Game works but customer requested it be Phoenixed

Removed battery, cut 2 traces, and added one jumper to the C board. Replaced ROM 23 with the Phoenixed version of code and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #22 on: May 07, 2014, 07:35:25 PM »
Model: Mercs
Symptom: Missing background graphics

Cleaned pins on the 0224B PROM and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #23 on: May 07, 2014, 07:35:34 PM »
Model: Mercs
Symptom: Corrupt foreground and background graphics

Resoldered the C board chip and tested
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #24 on: May 07, 2014, 07:35:45 PM »
Model: Carrier Air Wave
Symptom: CPS error and graphics corruption

Patched a damaged trace on the C board to fix the CPS error message. Resoldered the custom graphics chip on the A board to fix the graphics corruption. Tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #25 on: May 07, 2014, 07:36:03 PM »
Model: Captain Commando
Symtpom: Dead

C board was bad. Replaced with a compatible C board with a CPS-B-21 chip from a Street Fighter II game.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #26 on: May 07, 2014, 07:36:13 PM »
Model: Punisher
Symptom: Dead

Phoenixed the Q-Sound board and the C board. Replaced the 8 1Mb EPROMs on the ROM board (B board) with 2 4Mb EPROMs containing the phoenix code.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #27 on: May 07, 2014, 07:36:23 PM »
Model: Punisher
Symptom: Board crashes with Address Error at FFFF8F68

Board had "PSE" version code on 8 1Mb EPROMs and not "PSU" code. The phoenix code is based on PSU ROMs and mixing the ROMs resulted in the error code.

Replace the 8 1Mb EPROMs with 2 4Mb 16 bit EPROMs with the 16 bit version of the Phoenix code to resolve this error.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #28 on: May 07, 2014, 07:36:35 PM »
Model: Cadillacs and Dinosaurs
Symptom: Dead. Board suicided.

Replaced the ROM on the QSound board with a 27C020 programmed with the phoenix code. Modified board to use the code. Modified the C board and reprogrammed 2 EPROMs on the B board with phoenix code to finish resurrecting the game.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #29 on: May 07, 2014, 07:36:46 PM »
Model: Punisher
Symptom: Dead. Board suicided.

Replaced the ROM on the QSound board with a 27C020 programmed with the phoenix code. Modified board to use the code. Modified the C board and reprogrammed 5 EPROMs on the B board with phoenix code and replaced 3 slow EPROMs (Replaced 175ns with 120ns) to finish resurrecting the game.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #30 on: May 07, 2014, 07:36:56 PM »
Model: CPS1
Tip: Troubleshooting Sync Problems

If the CPS1 board works, but has no sync then this will apply. This will not apply if the game is not otherwise working OK.

The sync pulses are generated by the custom chip on the C board. Pins 118 and 116 on the C board carry the signal to pins 13 and 12 of the 74LS08 on the B board, directly under the C board. This chip ANDs the signals and the output pin, pin 11, connects to resistor R28 (on the smaller SMT style A board), then on to the sync pin of the JAMMA connector.

If the board is missing sync, first check for damage on R28 (220 ohm) and continuity to pin 11 of the 74LS08 on the B board. If those are good then check for pulses on pins 116 and 118 of the C board. If the pulses are there on BOTH pins and missing from pin 11 of the 74LS08, then replace the 74LS08. If one or more pulses are missing and the pins stuck low on 116/118 of the C board then reflow the custom chip on the C board. If that fails to fix the sync problem then replace the faulty C board.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #31 on: May 07, 2014, 07:37:05 PM »
Model: Captain Commando
Symptom: Dead

Unit has a suicide battery on it. Modified the C board then reprogrammed the 22 and 23 EPROMs with suicide free code. Tested the game.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Offline channelmaniac

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Re: Capcom CPS1 / CPS2 Games
« Reply #32 on: May 07, 2014, 07:37:15 PM »
Model: Cadillacs and Dinosaurs
Symptom: Dead

Reprogrammed the 22 and 23 EPROMs with suicide free code. Modified the C board and Q-Sound boards. Replaced the 27C010 on the Q-Sound board with a 27C020 programmed with suicide free code.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

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Re: Capcom CPS1 / CPS2 Games
« Reply #33 on: May 07, 2014, 07:37:24 PM »
Model: Punisher
Symptom: Dead

Replaced 5 slow EPROMs with proper ones programmed with suicide free code. Modified the C board and Q-Sound boards. Replaced the 27C010 on the Q-Sound board with a 27C020 programmed with suicide free code.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

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Re: Capcom CPS1 / CPS2 Games
« Reply #34 on: May 07, 2014, 07:37:33 PM »
Model: Punisher
Symptom: Dead

Replaced 5 slow EPROMs with proper ones programmed with suicide free code. Modified the C board and Q-Sound boards. Replaced the 27C010 on the Q-Sound board with a 27C020 programmed with suicide free code.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

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Re: Capcom CPS1 / CPS2 Games
« Reply #35 on: May 07, 2014, 07:37:43 PM »
Model: CPS1 Games
Tip: ROM speeds

When reprogramming EPROMs to run the phoenix version of code on the CPS-1 boards, the EPROMs on the board may need replacing. The AMD EPROMs labeled -155 (155ns) and -175 (175ns) are just fast enough to run the regular code. When running the phoenix code on these EPROMs the game may crash randomly.

When using AMD EPROMs, use 120ns or faster for EPROMs running the phoenix code. Intel EPROMs rated at -15 (150ns) will run fine. Any AMD EPROMs that do not need reprogramming are fine to keep using.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #36 on: May 07, 2014, 07:37:51 PM »
Model: Capcom CPS2 A board
Symptom: Low audio

Board shows the audio being up all the way in the test menu, but the audio is very low. Powered up the game with the volume down button held down to reset the audio levels. Adjusted audio and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Offline channelmaniac

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Re: Capcom CPS1 / CPS2 Games
« Reply #37 on: May 07, 2014, 07:38:02 PM »
Model: Super Street Fighter II Turbo (CPS2)
Symptom: Dead

Board would display a solid green screen. Removed battery and reprogrammed the EPROMs with the phoenixed version of code to resurrect the game. Tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #38 on: May 07, 2014, 07:38:17 PM »
Model: Capcom CPS2 cartridged
Tip: Trouble when phoenxing

When the CPS2 carts are being phoenixed the chip that does the decoding sometimes has a corrupted key in memory. AFTER cutting the battery off the board, take something, such as a pair of hemostats or Kelly clamps and short across capacitor CCI for several seconds. This is the capacitor next to the positive lead of the battery. This will kill the battery backed memory on the cartridge and allow the phoenixed code to work as designed.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Capcom CPS1 / CPS2 Games
« Reply #39 on: May 07, 2014, 07:38:28 PM »
Model: Street Fighter 2
Symptom: Graphics corruption

Game had corrupt player graphics and missing health bar segments. Replaced faulty A board and tested.
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