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Author Topic: Data East Games  (Read 15988 times)
channelmaniac
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« on: September 16, 2008, 12:23:19 AM »

Fixed: Captain America:
Symptom: Dead, missing parts.

Replaced 2 missing proms with ones pulled from parts Capt America board. Moved over 7 EPROMs from the parts board and burned an EPROM to replace the missing 8th. Fixed a short on the bottom of the board. CPU would not come up. Checked the reset line - it was being held high and never cycled from low to high to have the CPU boot normally. Traced it back and replaced a broken capacitor to fix the board.
Logged

I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
channelmaniac
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« Reply #1 on: September 16, 2008, 12:23:34 AM »

Fixed: Robocop:
Symptoms: Dead

Replaced 6 missing EPROMs, installed 2 20-pin sockets and 2 74als245 ICs. Still dead. Found and replaced a bad 20 pin socket on the ROM board. Board now booted but had corrupt background and foreground graphics. Did a physical inspection of the board and found bent pins on one of the graphics processors. Fixed the bent pins on graphics processor IC to fix the background graphics. Found and fixed three burnt traces under the 74LS157 ICs to fix the character/foreground graphics and finish the game.
Logged

I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
channelmaniac
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« Reply #2 on: September 16, 2008, 12:23:52 AM »

Fixed: Fighters History Dynamite
Symptom: Dead

A physical inspection revealed 2 gouged traces on the board. Repaired the traces and tested the game.
Logged

I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
channelmaniac
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Few things are better than fixing an old game...


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« Reply #3 on: September 16, 2008, 12:24:28 AM »

Fixed: Mutant Fighter
Symptom: Dead

A physical inspection turned up a hit on the bottom board that has pushed the solder on 2 plate throughs together to where they shorted. Dabbed a bit of rosin flux on the lump and used the soldering iron to unbridge them. Game booted but had no audio. Replaced the broken volume control pot (one leg had come loose from the pot) to finish the repair.
Logged

I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
channelmaniac
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Few things are better than fixing an old game...


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« Reply #4 on: July 18, 2009, 04:35:50 AM »

Model: Wizard Fire (Dark Seal II)
Symptom: Scrambled sounds

Board was randomly playing incorrect sounds. Resoldered the 2 OKI 6295 sound chips and a 74LS283 IC then tested the game.
Logged

I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
channelmaniac
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Few things are better than fixing an old game...


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« Reply #5 on: June 07, 2010, 07:56:04 PM »

Model: Captain America
Symptom: Dead

Board was dead. No power. Replaced 3 broken power filters next to the JAMMA connector and tested.
Logged

I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
channelmaniac
Surface mount soldering geek
Global NLG Site Moderator
Sr.Tech NLG Member 1000+ Post
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Total Karma Storms: 568
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Gender: Male
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Few things are better than fixing an old game...


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« Reply #6 on: March 04, 2012, 10:41:44 PM »

Model: Captain America
Symptom: Graphic Corruption on player/enemy

One address line was missing on the ROM at C17 and the clock signal on pin 11 was missing on the LS373s at A20 and A12. Cleaned a liquid spill and repaired 2 bad traces and 1 bad plated thru hole under the ROM at C17. Tested.
Logged

I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
channelmaniac
Surface mount soldering geek
Global NLG Site Moderator
Sr.Tech NLG Member 1000+ Post
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Posts: 2126


Few things are better than fixing an old game...


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« Reply #7 on: March 30, 2012, 07:30:17 PM »

Model: Captain America
Symptom: Dead. Missing parts.

Board was a parts board being resurrected. Replaced 3 missing PALs and 8 missing EPROMs with ones from another parts board. Board still dead. Replaced a missing 5 pin 1k resistor network and resoldered a partially removed one. Board would then boot but had graphic corruption between player/enemy and backgrounds. It also played incorrect sounds.

Fixed bent/shorted pins between the character ROMs and the background ROMs to fix the graphic issue. Resoldered the 75 chip to fix the incorrect sound issue. Installed 2 missing 9 pin 1k resistor networks for player 3/4 controls. Tested.
Logged

I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
channelmaniac
Surface mount soldering geek
Global NLG Site Moderator
Sr.Tech NLG Member 1000+ Post
*

Total Karma Storms: 568
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Gender: Male
Posts: 2126


Few things are better than fixing an old game...


WWW
« Reply #8 on: November 12, 2012, 09:20:41 PM »

Model: Chain Reaction
Symptom: Corrupt Graphics

Patched corroded trace on daughter board and tested.
Logged

I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
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