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Author Topic: Nintendo Arcade  (Read 27554 times)

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Offline channelmaniac

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Re: Nintendo Arcade
« Reply #20 on: December 03, 2014, 04:30:03 PM »
Model: Donkey Kong Jr.
Symptom: Random crashing

/RESET line was not staying high. Replaced bad 74LS04 at P1 and tested. Board would sometimes crash and other times on the key level would sometimes pass through the keys without raising them. Replaced Z80 CPU socket and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Nintendo Arcade
« Reply #21 on: January 08, 2015, 03:37:02 PM »
Model: Punch Out!
Symptom: No audio

Replaced bad sound CPU with one harvested from a Nintendo NES system and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Nintendo Arcade
« Reply #22 on: July 21, 2015, 08:36:30 PM »
Model: Donkey Kong
Symptom: Dead. Lines on screen.

The lines on screen looked like an old Atari 2600 when you powered it up with no cartridge.

Replaced 2 dead 74LS174 ICs to get rid of the lines. Board would not boot. Cleaned the program ROM legs, replaced ICs with stuck outputs at 4D, 1C, 1B, 2B, 1A, 3D, 4D, 5F, 5H, and 8F. Replaced 8035 CPU that had 2 broken legs.

Board would now boot but crash upon starting game and when data line D7 was touched with a logic probe. Replaced 6A, 6B, and 2 bad RAMs at 4C and 4B.

Board would now play but characters and moving objects were missing pieces and had repeating graphic elements. Replaced bad 74LS283 chips at 8J and 8R on the video board.

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

http://www.arcadecomponents.com

Offline channelmaniac

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Re: Nintendo Arcade
« Reply #23 on: July 22, 2015, 09:48:49 PM »
Model: Donkey Kong
Symptom: Incorrect digital sounds and constant analog sounds.

Replaced bad 74LS367 between the program CPU and sound CPU to fix the digital sound issue. Replaced bad 74LS05 driving the analog sounds to fix that section.

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

http://www.arcadecomponents.com

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  • Few things are better than fixing an old game...
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Re: Nintendo Arcade
« Reply #24 on: July 22, 2015, 09:49:26 PM »
Model: Donkey Kong
Symptom: Random crashing

Cleaned corroded chip legs on the 4 program ROMs and 2 sound program ROMs

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

http://www.arcadecomponents.com

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Re: Nintendo Arcade
« Reply #25 on: July 24, 2015, 09:05:25 PM »
Model: Mario Bros
Symptom: Dead. Missing parts.

Replaced the missing Z80A CPU, 10uf cap at C1, and 220 ohm resistor at R44. Replaced broken horizontal and vertical position adjustment pots. Replaced broken socket on the ROM at 7F. Replaced broken socket on the PROM at 5B and replaced the missing PROM at 5B.

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: Nintendo Arcade
« Reply #26 on: September 20, 2015, 01:15:19 PM »
Model: Donkey Kong
Symptom: Girders going uphill, barrels going up and downhill. High Score table garbled.

Broke Fluke 9010A out and determined RAM at 74FF to 7FFF was bad. Replaced RAMs at 2R and 2P to fix graphic and score table issues.

Board now worked but all moving graphics were off position on the screen. DK,  barrels, fireballs, Pauline, and Mario were all walking on the bottom surface of the girders isntead of the top. Checked the 74LS283 adders and they were working properly. Noticed that when the FLIP signal was activated that Mario was on the correct surface. Replaced 74LS32 at 5J to fix the problem. Pin 8 had incorrect outputs.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

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Re: Nintendo Arcade
« Reply #27 on: December 25, 2015, 10:18:21 PM »
Model: Donkey Kong 3
Symptom: Dead. Missing parts.

Replaced broken H-Pos and V-Pos pots on the video board. Replaced broken HD10136 ECL counter at 1E and missing 74LS373 at 6H on the video board. Replaced missing 74LS138 and patched a damaged trace at 3A on the CPU board. Reseated a color output PROM to fix missing color issue, installed missing board standoff, cleaned the board edge connector to fix coin input issues, 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: Nintendo Arcade
« Reply #28 on: December 26, 2015, 02:20:19 PM »
Model: Donkey Kong Jr. / 8 Ball Action
Symptom: No vertical sync

Replaced the H-Pos and V-Pos pots, cleaned the edge connector and deconverted the board back to DKjr. This involved replacing 4 EPROMs and 2 Bipolar PROMs on the CPU board and 6 EPROMs and 1 Bipolar PROM on the video board. Tested. Board worked but would reset when bumped. Replaced the CPU socket and retested.

The 2650 CPU daughterboard from the kit had large square pins that damaged the CPU socket, requiring it to be replaced.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

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Re: Nintendo Arcade
« Reply #29 on: December 26, 2015, 04:08:18 PM »
Model: vs. Super Mario Bros.
Symptom: Dead

Cleaned legs on the program ROMs. Tested. Board would boot but had graphical corruption. Cleaned legs on the graphics ROMs 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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  • Few things are better than fixing an old game...
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Re: Nintendo Arcade
« Reply #30 on: December 26, 2015, 05:25:09 PM »
Model: vs. Hogan's Alley
Symptom: Dead. Blue screen.

Replaced bad ROM 1B and tested. Screen had graphics corruption. Cleaned the Program ROM and Graphics ROM legs and retested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Offline channelmaniac

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  • Few things are better than fixing an old game...
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Re: Nintendo Arcade
« Reply #31 on: January 20, 2016, 09:45:29 PM »
Model: Punch Out
Symptom: Dead. Comes up with either a blue screen or garbage.

Replaced a corroded power passthru connector on the CPU board and the matching plug on the power ribbon cable. The bad connection was preventing power from reaching the other boards.
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: Nintendo Arcade
« Reply #32 on: January 23, 2016, 10:01:32 PM »
Model: Donkey Kong
Symptom: Dead. Scrolling garbage on screen. CPU board has had water damage.

Replaced the sockets at 5A, 5B, 5C, 5E, 7C, 7H, 3F, 3H, 2E, and 2F. Replaced corrosion damaged 2532 EPROMs at 5A and 5B, Z80A CPU at 7C, and 8035 CPU at 7H. Replaced the horizontal and vertical adjustment pots to fix the scrolling. The reset circuit was dead. Replaced C41, C40, C44, R60, and the 74LS123 at 1N to restore operation. Replaced physically damaged C164.

The game would not boot and the Fluke 9010a showed that Data Bus line 1 was being held low. Tested the 2114s at 3C, 3B, and 3A in a BK Precision 560A chip tester and replaced bad ones at 3C and 3B. The board would try to boot but was stuck on a flashing screen. RAM tests on the Fluke showed that the 2114 RAM IC at 4C was bad. Replaced the IC at 4C and played a few 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: Nintendo Arcade
« Reply #33 on: January 23, 2016, 10:05:49 PM »
Model: Donkey Kong
Tip: CPU board RAM locations

The 2114 RAMs on the CPU board are laid out and addressed as follows:

$6000 - $63FF: 3C (low bits) / 4C (high bits)
$6400 - $67FF: 3B (low bits) / 4C (high bits)
$6800 - $6BFF: 3A (low bits) / 4A (high bits)

Sprite RAM at $6900 - $6A7F is on the video board
Video RAM at $7400 - $77FF is on the video board
RAM listed as "??" on the MAME .c file at $7000 - $73FF is on the video board
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: Nintendo Arcade
« Reply #34 on: February 03, 2016, 06:11:39 PM »
Model: TMNT PC-10 Cartridge
Symptom: Locks up

Replaced bad Program ROM and tested. ROM had correct checksum but wouldn't run at speed.
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: Nintendo Arcade
« Reply #35 on: February 03, 2016, 06:13:02 PM »
Model: Pro Wrestling PC-10 cartridge
Symptom: Dead

Patched gouged trace 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...
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Re: Nintendo Arcade
« Reply #36 on: February 03, 2016, 06:14:08 PM »
Model: Golf PC-10 cartridge
Symptom: Dead

Replaced three corroded sockets and cleaned the ROM pins. 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...
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Re: Nintendo Arcade
« Reply #37 on: February 03, 2016, 06:14:59 PM »
Model: Tennis PC-10 cartridge
Symptom: Dead

Repaired a gouged trace 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...
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Re: Nintendo Arcade
« Reply #38 on: February 04, 2016, 12:47:39 AM »
Model: Playchoice 10 Dual Monitor PCB
Symptom: Crashes. Board has attempted repair damage.

Replaced several sockets and fixed a pulled trace on the CPU. The board would run but would start getting garbage on the screen after it had been on for about 5 minutes. Replaced a bad 2k x 8 .300" SRAM chip 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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  • Few things are better than fixing an old game...
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Re: Nintendo Arcade
« Reply #39 on: August 19, 2016, 07:21:55 PM »
Model: Vs. boardset
Symptom: Broken sockets

Cleaned board. Replaced 2 broken 40 pin sockets and the other 2 40 pin sockets for good measure. Replaced 3 28 pin ROM sockets that had corroded contacts. Installed 6 EPROMs for Vs. Pinball, a CPU, and the matching PPU, and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

 

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