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Author Topic: Psikyo Games  (Read 4086 times)

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Offline channelmaniac

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  • Few things are better than fixing an old game...
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Psikyo Games
« on: May 04, 2014, 05:44:16 PM »
Fixed: Strikers 1945
Symptoms: Security Chip problem

Board would run through RAM/ROM self tests then freeze with a security chip error. Replaced the missing crystal on the security chip (unknown speed) with a 4MHz Crystal. Board booted but had garbled sound. Resoldered the Yamaha sound IC's crystal (Was soldered in by some ham fisted goon) to fix the sound issue and finish repairing the game.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

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  • Few things are better than fixing an old game...
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Re: Psikyo Games
« Reply #1 on: May 04, 2014, 05:44:29 PM »
Model: Strikers 1999
Symptom: Player 2 would not move left

The R/C SIP filter was blown on the Player 2 Left input. Replaced it and tested the board. The 74HCT244 surface mount IC was stuck high on its input. Replaced the IC and played a couple of games.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

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  • Few things are better than fixing an old game...
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Re: Psikyo Games
« Reply #2 on: May 04, 2014, 05:44:47 PM »
Model: Strikers 1999
Symptom: Repair Tip

When repairing the Strikers 1999 game board, the inputs are as follows:

Player 1 U/D/L/R goes through RC2 (Resistor/Capacitor network SIP)
Player 2 U/D/L/R goes through RC5

Player 1 controls (U/D/L/R and Button 1/2/3) go through U42 (74HCT244)
Player 2 controls (U/D/L/R and Button 1/2/3) go through U43 (74HCT244)
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

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  • channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!
  • Few things are better than fixing an old game...
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Re: Psikyo Games
« Reply #3 on: May 04, 2014, 05:45:11 PM »
Model: Strikers 1945
Symptom: Plays music on startup but nothing on screen.

Board would play an introductory jingle only. Would not play blind. A closer inspection revealed that one of the custom SMT IC had something sharp dragged across the pins which caused solder to dislodge and short all pins on one side and over half the pins on another side.

Resoldered the security chip & 2 custom SMT ICs. Checked the program EPROMs. They were either corrupt or unknown types as the checksums were not found doing a Google search. Erased the program EPROMs and reprogrammed them with the s1945.zip ROM set from MAME.

Played a few games to test.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

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  • NLG Member 501 to 10,000 Posts
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  • channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!
  • Few things are better than fixing an old game...
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Re: Psikyo Games
« Reply #4 on: May 04, 2014, 05:45:23 PM »
Model: Strikers 1945
Symptom: Dead

The PAL chip at U64 had a hole in the top of it. Copied the PAL chip programming from another board and replaced it. Board would then power up but had blank bars instead of normal graphics. Resoldered the ROMs at U20 and U21 to finish the repair and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

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  • channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!
  • Few things are better than fixing an old game...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Psikyo Games
« Reply #5 on: May 04, 2014, 05:45:35 PM »
Model: Strikers 1945
Symptom: Dead

Board was stuck in watchdog reset and had something on it between 2 RAM chips that damaged two traces. Patched the traces and resoldered the custom ICs. Board would then boot an run but had corrupt graphics. Checked the Graphics RAM. They were OK. A close inspection of the board revealed that the board was excessively flexed on one corner. Resoldered U1, U20, U21, U22, U23, and U34. Patched 3 traces between U20 and U21. The corrupt graphics were now solid blocks.

Another look at U20 revealed that pin 23 was broken at the body of the chip. Dremeled the body of the IC to reveal the metal trace inside and soldered a jumper wire to the pad to finish the repair.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

  • Surface mount soldering geek
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  • NLG Member 501 to 10,000 Posts
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  • Posts: 2472
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  • channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!
  • Few things are better than fixing an old game...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Psikyo Games
« Reply #6 on: November 22, 2014, 07:56:51 PM »
Model: Strikers 1945
Symptom: Dead. Sticky, oily residue on board.

Cleaned board and replaced a broken 10uf capacitor in the reset circuit. Board would boot but had a BG RAM error. Patched a bad trace between the RAM at U49 and the custom IC at U35. Replaced both broken DIP switch banks. Board would boot and play but had very low audio output. Replaced bad volume pot and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

  • Surface mount soldering geek
  • Global NLG Site Moderator
  • NLG Member 501 to 10,000 Posts
  • *
  • Posts: 2472
  • Reputation Power: 174
  • channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!
  • Few things are better than fixing an old game...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Psikyo Games
« Reply #7 on: November 22, 2014, 07:59:33 PM »
Model: Strikers 1945
Symptom: Loud static for audio and horizontal lines on screen.

Fixed bent pin on U34 and reflowed that side of the ROM to fix the horizontal lines. Removed solder short from U46 to fix the static problem and replaced the volume pot to fix loudness issue. Tested.

A chunk of solder from the problem side of U34 had wedged itself between 2 pins on U46 causing the noise.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

  • Surface mount soldering geek
  • Global NLG Site Moderator
  • NLG Member 501 to 10,000 Posts
  • *
  • Posts: 2472
  • Reputation Power: 174
  • channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!
  • Few things are better than fixing an old game...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Psikyo Games
« Reply #8 on: April 29, 2022, 10:25:37 AM »
Model: Strikers 1945 III
Symptom: Dead

Reflowed CPU and custom system controller IC. Board came up with RAM errors. Replaced all 4 RAM chips and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

  • Surface mount soldering geek
  • Global NLG Site Moderator
  • NLG Member 501 to 10,000 Posts
  • *
  • Posts: 2472
  • Reputation Power: 174
  • channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!
  • Few things are better than fixing an old game...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Psikyo Games
« Reply #9 on: December 23, 2022, 01:59:53 AM »
Model: Space Bomber
Symptom: Work RAM NG error

Replaced 2 SMT RAM chips and tested.

Note: The 62256 SOJ RAM is Video RAM and the 40 pin SOJ 256K x 16bit RAM is the Work RAM on these PCBs.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

  • Surface mount soldering geek
  • Global NLG Site Moderator
  • NLG Member 501 to 10,000 Posts
  • *
  • Posts: 2472
  • Reputation Power: 174
  • channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!channelmaniac Is an-NLG GOD!
  • Few things are better than fixing an old game...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Psikyo Games
« Reply #10 on: September 25, 2023, 01:04:55 AM »
Model: Strikers 1945 II
Symptom: No sound

Board has a double-stacked surface mount ROM with a bodged on inverter chip. Reflowed the chips to the PCB then painstakingly resoldered the top ROM onto the bottom ROM. Tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

 

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