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Author Topic: Konami Games  (Read 44222 times)

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Offline channelmaniac

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  • Few things are better than fixing an old game...
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Re: Konami Games
« Reply #160 on: April 29, 2023, 12:37:19 AM »
Model: X-Men
Symptom: No sound

Replaced audio hybrid and DAC. Tested.
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: Konami Games
« Reply #161 on: September 06, 2023, 06:37:57 PM »
Model: Sunset Riders
Symptom: Sprite issues. Fails Mask ROM test.

Reflow custom IC at 3J to fix cracked solder issue. Tested.
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: Konami Games
« Reply #162 on: September 06, 2023, 06:38:34 PM »
Model: X Men
Symptom: Sprite issues. Fails Mask ROM test.

Patched damaged trace from custom to Mask ROM address line. Tested.
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...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Konami Games
« Reply #163 on: September 11, 2023, 10:09:57 PM »
Model: Bucky O Hare
Symptom: No audio

Replaced audio hybrid and DAC chip. Tested.
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...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Konami Games
« Reply #164 on: September 15, 2023, 03:00:58 PM »
Model: X-Men
Symptom: Sound subsystem Errors on start up. Will not play game.

Replaced bad sound hybrid module 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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  • Few things are better than fixing an old game...
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Re: Konami Games
« Reply #165 on: October 23, 2023, 12:11:43 AM »
Model: 6-player X-Men
Symptom: Low audio

Replaced defective hybrid module with a 3rd party one 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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  • Few things are better than fixing an old game...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Konami Games
« Reply #166 on: December 01, 2023, 03:10:54 AM »
Model: X-Men
Symptom: Dead

Board read 3.9 ohms to ground and had 2 address lines shorted to ground. It was also missing a 74LS367 IC.

Replaced missing 74LS367 and replaced bad 68K CPU. Board looked like it was booting but had a light blue screen. Replaced one dead Color RAM and a bad 74LS273 latch in the color output section. 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: Konami Games
« Reply #167 on: December 01, 2023, 03:12:51 AM »
Model: Sunset Riders
Symptom: Dead

Board was sprayed down with something oily that attracted a lot of dirt.

Cleaned PCB. Board booted with a RAM error. Replaced a 2K x 8 SRAM and its socket. Patched 2 dead traces to that RAM chip. Tested. Board booted but with graphical glitches and no audio. Replaced 2 bad volume pots to restore audio. Reflowed several pins with cracked solder and replaced a bad Mask ROM at 16K. Cleaned the Program ROM legs to fix random lockups. Tested and burned in.
« Last Edit: December 01, 2023, 03:37:19 AM by channelmaniac »
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: Konami Games
« Reply #168 on: December 11, 2023, 07:02:24 PM »
Model: X-Men
Symptom: Bad sound

Replaced the sound hybrid & tested. Replaced bad DAC and retested.
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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  • 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: Konami Games
« Reply #169 on: December 11, 2023, 07:02:58 PM »
Model: Cowboys of Moo Mesa
Symptom: Bad sound

Replaced the sound hybrid and a physically damaged 1000uf @ 16v capacitor. Tested.
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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  • 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: Konami Games
« Reply #170 on: December 13, 2023, 02:55:08 AM »
Model: Simpsons
Symptom: Dead

Board had the LS367 buffering Video Sync output and CPU Reset replaced. It also had the 74LS245 data bus latch replaced.

Board had no sync, was stuck in watchdog reset, and the CPU was dead. Checked the CPU Reset pin and found it stuck high. Checked the input on the LS367 and found it dead. Traced it back to the 052109 custom. Checked the paired custom (051962) chip's sync output and it was stuck at +5v. Replaced both the 052109 and 051962 customs and had CPU Reset and proper Sync. Board was still stuck in watchdog. Found the far side of the data bus from the CPU, across the LS245 was shorted on D4 to ground by 7 ohms. Replaced shorted 74LS253 control input chip and tested. It was shorted on the Player 4 Switch 1 input. Tested.
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: Konami Games
« Reply #171 on: December 28, 2023, 08:52:29 PM »
Model: Lethal Enforcers
Symptom: No audio

Board had the hybrid module already replaced by a 3rd party.

Replaced a bad custom audio IC and DAC. 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: Konami Games
« Reply #172 on: January 02, 2024, 03:42:28 PM »
Model: Lethal Enforcers
Symptom: Missing parts

Installed missing 24MHz crystal oscillator and 4 position DIP switches. Replaced broken 4.7K resistor network on main CPU. Replaced Hybrid Module and missing audio heat sink. Patched 3 gouged traces 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: Konami Games
« Reply #173 on: January 12, 2024, 08:54:49 PM »
Model: X-Men
Symptom: Dead

Board had attempted repairs and replacement hybrid done.

Removed badly installed audio custom off the replacement hybrid, straightened 3 pins on it, and reinstalled it properly. It was poorly registered on the pads causing a short across the data bus. Reflowed the DAC IC and 4 SMT components that were not properly on their pads. Replaced missing 4.7uf tantalum capacitor in audio circuit and resoldered several parts that were left desoldered by the last tech. Reset EEPROM to factory defaults, tested Mask ROMs, and tested the game.
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: Konami Games
« Reply #174 on: January 12, 2024, 09:15:51 PM »
Model: X-Men
Symptom: "Sprite chipset issue"

Board had attempted repairs done.

This was an odd one. The lower left part of the screen, about 2" wide and half the screen tall would flicker in and out. Everything in that section of screen would be covered by a white box when playing the game and by a black box when in test mode. Appeared to be in the section of the chipset where sprites, backgrounds, and text overlays were assembled before going to the screen (053251 chip.) Problem would disappear when the board warmed up.

Used some cooling spray and found the sprite chip 053246 to be bad. Replaced the 053246 and tested. Board would randomly crash. Partially reflowed the 052109, 051962, and 053251 chips where someone had poorly attempted to reflow before. Tested the Mask ROMs then tested the game.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

 

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