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Author Topic: Namco Games  (Read 33664 times)

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Offline channelmaniac

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  • Few things are better than fixing an old game...
    • Arcadecomponents.com - Looking for hard to find chips?
Re: Namco Games
« Reply #120 on: November 12, 2022, 11:52:51 PM »
Model: Galaga
Symptom: Missing lines in sprites

Rebuilt the PCB - Replaced all 24/28/40/42 pin sockets and the unencapsulated resistor packs. Replaced bad 74LS157 at 4A. 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: Namco Games
« Reply #121 on: January 30, 2023, 01:11:59 AM »
Model: Tekken
Symptom: Dead. Color bars on screen.

Replaced missing YCUS IC. Board then went through random resets, sometimes won't boot, and had static for sound. Reflowed the 2 SOJ SRAMs, the 74F04, and the 74AC74 down in the corner of the lower PCB. 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: Namco Games
« Reply #122 on: February 08, 2023, 12:34:32 AM »
Model: Super Pac Man
Symptom: Dead

Boardset had corrosion issues.

Removed 2 jumpers and reinstalled 2 missing 100 ohm resistors on the CPU board. Replaced a bad 74LS74 at 2A to restore the Q clock to CPU 1. RAM Error. Replaced the RAM at 2D. ROM 3 Error. Replaced the sound CPU and it booted to corrupt graphics and scratchy sounds. Replaced the socket on the 15xx and the sound PROM at 3M to fix the sound issues. Reseated the PAL at 4D and replaced the PROMs with leg issues at 3L and 4E on the video board to restore graphics. Graphics had sparkling issues. Replaced bad resistor pack at RM4 on the CPU board that has a lifted leg. Boardset suddenly died on the bench. Removed a jumper wire and reinstalled a missing 100 ohm resistor in the 6MHz clock line and replaced a bad 74LS32 at 1A on the video board to restore video. Boardset had an I/O 1 Error. Replaced a broken 2.2k resistor pack at RM13 to fix a floating input on one of the 56XX chips. The 4 RESET signal to both 56XX chips was stuck low. Patched a dead trace to pin 1 of the 74LS259 latch at 2M to finish the repair. Burned-in PCB.
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: Namco Games
« Reply #123 on: March 03, 2023, 01:05:24 AM »
Model: Tekken 3
Symptom: Dead

Reflowed the Program ROMs and tested. Bad power on sounds and missing blue on video output. Replaced bad transistor in the video output circuit and reflowed the Wave ROMs. 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: Namco Games
« Reply #124 on: March 05, 2023, 05:13:55 AM »
Model: Tekken 3
Symptom: Dead

Replaced smashed IC51. Reflowed IC52 and the Program RAMs. Reflowed IC03 and IC4. 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: Namco Games
« Reply #125 on: October 30, 2023, 10:50:30 PM »
Model: Tekken Tag
Symptom: Player 1 Left stuck on

Replaced bad 74HC257 IC and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

 

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