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Author Topic: UPL Games  (Read 2964 times)
channelmaniac
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« on: November 28, 2010, 11:21:28 PM »

Model: XX Mission
Symptom: Missing text and background is garbled.

Replaced a bad 2k SRAM to fix the text issue and a 2k SRAM to fix the backgrounds. Replaced 3 bad 64k DRAM chips to fix a color striping issue. Tested game. Board had heat damage to the +5v pins on the JAMMA edge connector. This was caused by excessive current draw from the 3 shorted 64K DRAM chips.
« Last Edit: December 01, 2010, 11:35:36 PM by channelmaniac » Logged

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

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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
Posts: 2127


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


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« Reply #1 on: January 15, 2012, 08:04:34 PM »

Model: Atomic Robo-Kid
Symptom: Dead. Will sometimes power up.

Patched a burnt trace then Reseated CPU module. CPU module was not fully seating due to interference from an empty ROM socket next to it. Removed the ROM socket, cleaned up the RTV sealant used to hold the CPU in place, reinstalled the CPU then reapplied new low-fume RTV to hold it in place. 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
Posts: 2127


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


WWW
« Reply #2 on: January 15, 2012, 09:36:18 PM »

Model: Strahl
Symptom: Lines in graphics

Resoldered 2 filter caps with broken solder joints. Cleaned pins on ROM at IC32 and replaced bad SRAM at IC1. 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
Posts: 2127


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


WWW
« Reply #3 on: July 31, 2012, 05:54:46 PM »

Model: Black Heart
Symptom: Graphic corruption & sound corruption

Board had corruption on the title screen and overlay text (scores, etc...)

Repaired one trace in the audio section to fix sound issue. Repaired 1 trace and cleaned the legs on a ROM to fix the graphics issue. 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
Offline Offline

Gender: Male
Posts: 2127


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


WWW
« Reply #4 on: September 06, 2013, 05:10:45 PM »

Model: Rad Action / Kid Ninja II
Symptom: Random sound effects play

Replaced suicided custom CPU with a Z80B CPU and the sound ROM with one programmed with suicide free code. Tested.
Logged

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

http://www.arcadecomponents.com
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