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Author Topic: Data East Games  (Read 9936 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: Data East Games
« Reply #20 on: August 21, 2021, 09:25:27 PM »
Model: Express Raider
Symptom: No audio

Replaced broken 470uf capacitor and cleaned the edge connector. 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: Data East Games
« Reply #21 on: September 04, 2021, 10:15:34 PM »
Model: Mutant Fighter
Symptom: Dead

Stuck in reboot cycle.

Replaced missing ROM 10. If you push down on the CPU it stops rebooting. Reflowed custom 59 (CPU IC) and board booted, but had graphic corruption. Reflowed 2 sides of custom 55 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: Data East Games
« Reply #22 on: September 19, 2021, 10:05:20 PM »
Model: Locked N' Loaded
Symptom: No audio

Replaced dead audio amp IC 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: Data East Games
« Reply #23 on: January 17, 2022, 01:37:46 PM »
Model: Bump N' Jump
Symptom: Dead. Garbage on screen.

This was a "fun" one... Replaced 3 Program ROMs, 1 Sound Program ROM, 2 of the 3 Character ROMs, and 2 Background ROMs. Replaced a bad Work RAM and a Sound Work RAM chip. Replaced a 74LS04 and a bad 74LS245 that had a short on the enable pin being driven by the 74LS04 that was replaced. Board would boot and clear the screen but would put up blocks. Replaced 2 bad 74LS194 chips in the Character ROM circuit, a bad 74LS04 with a stuck output, and a bad Bipolar PROM in the Horizontal timing section to restore the video. Board would boot to the title screen then the CPU would lock up. Traced through the address decoding and found where the board would read the TILT sensor before locking up. That circuit worked. When it locked up it would be stuck with a repeating high/low signal to the 74LS244 buffer on DIP Switch 1. Pins 1 and 19 were tied together and pin 19 of the LS244 read 320 ohms to +5v and 270 ohms to ground. Replaced the LS244 and successfully tested 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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  • 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...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Data East Games
« Reply #24 on: March 02, 2023, 02:44:32 AM »
Model: Robocop
Symptom: Dead

PAL at A2 was half out of its socket. Removed, straightened its pins, and reseated it. Top and bottom PCBs were not seated properly, reseated them and tested. No green. Cleaned edge connector and tested. Game had some corrupt graphics. Replaced missing IP17 ROM chip and tested. Game lost audio after 5 minutes. Recapped the audio section, removed a wire hack and capacitor bodge from the board and replaced the missing NF17 filter in the video ground circuit. Played game all the way to the end with much louder audio now with no failures.
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: Data East Games
« Reply #25 on: April 09, 2023, 01:31:32 AM »
Model: Bad Dudes vs. Dragon Ninja
Symptom: White screen.

Replaced the physically broken sound capacitor, 3 bad Palette RAMs, and 1 bad CPU RAM. Board booted but both the main CPU and sound subsystem would freeze at random. Checked the board and found that 'random' meant, when the board was flexed. Replaced the 68000 CPU, YM2203C sound chip, and a 74LS245 bus latch that had broken pins where they met the PCB. Seems the board was severely bent, enough to pop some chip legs apart. Tested to find no sprites. The custom at 3C had no activity on the address and data lines going to the graphics ROMs and to the RAMs next to it. Found pin 117 was missing its signal. Patched the trace between pin 117 of the custom and pin 10 of the LS174 at C13. 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: Data East Games
« Reply #26 on: April 10, 2023, 12:38:45 PM »
Model: RoboCop
Symptom: Dead. Garbage on screen.

68K CPU stuck with the /HALT line actively low. Checked address and data lines for activity. Checked control lines for activity. Each started up momentarily before the CPU halted. Dug deeper and found data lines 0 and 1 shorted on the far side of the 74LS245 latches. Followed the shorts to the 3 large surface mount custom ICs. Removed a solder short 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: Data East Games
« Reply #27 on: October 05, 2023, 08:30:36 PM »
Model: Gondomania
Symptom: Burned input filter

Filter RP9 was burned on pin 7 and the body of the red filter was half burned. Replaced the filter 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: Data East Games
« Reply #28 on: October 08, 2023, 03:39:07 AM »
Model: Vs. Bad Dudes
Symptom: Reboots when tapped

Straightened 6 SMT pins across 2 custom chips. Reflowed those pins. 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: Data East Games
« Reply #29 on: October 08, 2023, 03:39:33 AM »
Model: Vs. Bad Dudes
Symptom: No blue

Repaired damaged trace under the video output transistors. 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: Data East Games
« Reply #30 on: November 01, 2023, 11:58:27 PM »
Model: Bad Dudes
Symptom: Dead, garbage on screen.

Board arrived with a complaint of no audio but was dead.

Replaced 68K CPU as it had multiple broken pins on each end of the chip. (This boardset is vulnerable to bending which breaks those pins.) Replaced  missing RCDM-I1 protection SIP on control inputs. Replaced 74LS74 in the interrupt circuit on the sound CPU as it had stuck outputs. Replaced bad Sound RAM chip. Board now had sound, but was missing some of the effects. Replaced dead YM2203 sound chip and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

 

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