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Author Topic: Namco Games  (Read 40746 times)
channelmaniac
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« Reply #25 on: December 21, 2012, 04:42:16 AM »

Model: Bosconian
Symptom: No music or speech.

Replaced all the old style resistor packs on both the CPU and Video boards. Replaced all the 24/28/42 pin sockets on the Video board and CPU board. Cleaned the tarnish from all the silver plated pins on the custom ICs. Fixed a broken pin on the 54xx IC. Reinstalled the ICs and tested. Replaced 1 7489 SRAM on the CPU board to fix the music and 1 transistor on the video board to fix the speech.
Logged

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

http://www.arcadecomponents.com
channelmaniac
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« Reply #26 on: December 21, 2012, 04:44:15 AM »

Model: Bosconian
Symptom: ROM 2 error

Replaced all the old style resistor packs on both the CPU and Video boards. Replaced all the 24/28/42 pin sockets on the Video board and CPU board. Cleaned the tarnish from all the silver plated pins on the custom ICs. Fixed a broken pin on the 50xx and one of the 8xx ICs. Straightened a bent pin on the 3rd EPROM to fix the ROM 2 error. Reinstalled the ICs and tested.
Logged

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

http://www.arcadecomponents.com
channelmaniac
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« Reply #27 on: March 12, 2013, 02:46:01 AM »

Model: Grobda
Symptom: Dead

Replaced CPU and tested
Logged

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

http://www.arcadecomponents.com
channelmaniac
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« Reply #28 on: March 12, 2013, 02:51:39 AM »

Model: Galaga
Symptom: Dead

Board had attempted repair damage on the ROMs on row 3 on the CPU board.

Replaced all the 24, 28, 40, and 42 pin sockets on the board. The sockets had been replaced once before, but with defective single wipe sockets and 8 damaged/patched traces. Several of the old sockets had fractured pins that were making intermittent contact with the board. Re-jumpered 7 damaged traces as two of the existing patches under the ROM sockets were intermittent.

Cleaned the custom chips and repaired a pin on each of the 06xx, 54xx, and the 00xx chips. Tested.
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 #29 on: March 28, 2013, 02:41:14 AM »

Model: Bosconian
Symptom: Unknown. Wanted board rebuilt.

Board powered up an ran, but had no audio. Replaced 2 older style resistor packs, all of the 24/28/40/42 pin sockets in use (one extra, unused socket was not replaced), all of the axial electrolytic caps, and a bad MB3730 audio amp chip. Tested.
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 #30 on: April 06, 2013, 01:16:47 AM »

Model: Gaplus
Symptom: Dead

Cleaned corroded ROM legs, Custom IC 34 had several broken legs. Cleaned the remaining legs, placed it in a machine pin socket, and soldered it to the socket. Replaced the 28 pin socket on the board and reinserted it. Resoldered poor solder joints on the crystal oscillator 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
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Posts: 2126


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


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« Reply #31 on: September 06, 2013, 03:13:55 AM »

Model: Galaga 88
Symptom: Poor colors and no sync.

Cleaned edge 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
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Posts: 2126


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


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« Reply #32 on: September 14, 2013, 06:34:15 PM »

Model: Gaplus
Symptom: Missing chips. Dead.

Replaced 3 missing CPUs and 1 corroded 64 pin socket. Cleaned the pins on the 64 custom and tested. Game would try to boot. Tested and replaced 4 bad EPROMs. Tested Game.
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
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Total Karma Storms: 568
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Gender: Male
Posts: 2126


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


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« Reply #33 on: September 24, 2013, 02:16:48 AM »

Model: Assault
Symptom: Missing every other vertical line in player graphics

Replaced bad 2018 SRAM chip at 7J on the bottom board. 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: 2126


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


WWW
« Reply #34 on: October 26, 2013, 02:29:10 AM »

Model: Point Blank 2
Symptom: Random crashes and garbage on screen

Cleaned top board. Reflowed the Flash ROM, ROMs on the daughterboard, and reseated the KEYCUS chip. 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: 2126


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


WWW
« Reply #35 on: December 30, 2013, 12:47:32 AM »

Model: JVS to JAMMA adapter
Symptom: No video

Replaced physically broken surface mount RC filter.
Logged

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

http://www.arcadecomponents.com
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