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Author Topic: Konami Games  (Read 44243 times)

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Offline channelmaniac

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Re: Konami Games
« Reply #60 on: December 12, 2014, 11:32:39 PM »
Model: Track and Field
Symptom: No sound

Cleaned legs on the EPROMs on the sound board and tested. Replaced the 220uf and 2 47uf capacitors in the reset circuit and retested.
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Re: Konami Games
« Reply #61 on: December 14, 2014, 01:01:11 PM »
Model: Mikie
Symptom: Dirty and dead.

Board looked like it had dirt and grass on the top board. Cleaned top board, replaced bad sockets and corroded ROMs at 12A, 10C, 12D, 6E, and 8I. Replaced bad CPU socket at 9A and tested. Board would not boot and had a hum on the audio output. Replaced dead Fujitsu 74LS138 chips at 13B and 9E and the remaining 74LS138 chips at 7G,13A, and 5D on the CPU board as a precaution. Board would boot but randomly crash. Replaced bad 74LS244 chips at 10A and 10B on the CPU board.

Board would boot and run but had graphic corruption that would come and go. Replaced both ribbon cables between the CPU and Video boards to fix that issue. Replaced 74LS393 at 8C and 74LS367 at 7C to fix the audio clock signal and the 74HC374 at 4C to fix missing data lines to the audio chips. Board now had sound but still had the hum. The audio chip at 6C worked but 5C had no output. Replaced bad 74LS08 at 8F controlling the audio chip enable lines to fix the hum issue and restore the harmonizing sounds generated by the second audio chip. Tested.
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Re: Konami Games
« Reply #62 on: March 18, 2015, 07:18:56 PM »
Model: TMNT (Teenage Mutant Ninja Turtles)
Symptom: No sound. Won't move in all directions.

Board had severe corrosion damage.

Jumpered one bad trace to fix inputs for player 1 controls. Jumpered 1 bad trace to restore audio, but audio was garbled. Jumpered 9 more bad traces to fix audio issues. Tested
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Konami Games
« Reply #63 on: September 13, 2015, 12:09:54 AM »
Model: Teenage Mutant Ninja Turtles
Symptom: No sound

Board had input to the LM324 at B12 but no outputs. Replaced the LM324 and now had output from it but no audio from the board. Replaced the MB3771 audio amp chip to fix missing audio output. Audio played but was garbled. Replaced another LM324 and an LM358 OpAmp to fix the garbled audio issue and tested the board.
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Re: Konami Games
« Reply #64 on: September 24, 2015, 07:30:50 PM »
Model: Simpsons Bowling
Symptom: CDR Error. Will not boot.

Burned CDR using the MAME files and tested. Drive would not read disc. Replaced drive and tested.
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Re: Konami Games
« Reply #65 on: January 10, 2016, 08:04:21 PM »
Model: Roc'N Rope
Symptom: Obj 2 RAM error

Replaced 2114 RAM at F11 and tested.
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Re: Konami Games
« Reply #66 on: May 31, 2016, 04:57:24 PM »
Model: Simpsons
Symptom: Dead. Stuck in reset

Board would try to boot then would be reset by watchdog. Customer stated ROMs tested good in a programmer.

Found the data bus on the CPU to be OK but on the other side of the 74LS245 at 12D the line for D2 was being held low causing the CPU to not be able to access the RAM at 11F. Removed the RAM at 11F and the Fujitsu 74LS245 ICs at 12D, 6H, 5H, and 4H. D2 was still held low. Removed the 74LS253 at 11B and D2 sprang to life. Installed replacement ICs for the Fujitsu logic and replaced the LS253.

The board booted, ran, and passed self test and the extended ROM tests, but failed the input test for Player 2 Right. Replaced the 74LS253 at 11A and tested the game.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Konami Games
« Reply #67 on: July 04, 2016, 05:54:52 PM »
Model: Gyruss
Symptom: Popping and smoking.

Replaced shorted LA4460 audio amplifier IC at 6E and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Konami Games
« Reply #68 on: July 07, 2016, 08:22:36 PM »
Model: Teenage Mutant Ninja Turtles
Symptom: Audio corruption. Missing

Intro music stuttered repeatedly. This is stored on the Mask ROM at D5.

Installed missing 640KHz ceramic oscillator at E9 and replaced bad 74LS393 at D5. Tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Offline channelmaniac

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Re: Konami Games
« Reply #69 on: August 14, 2016, 06:55:16 PM »
Model: Simpsons
Symptom: Dead. White screen.

Patched a corroded trace on the bottom of the board and replaced bad 74LS20 ICs that had a dead output on pin 6. Board booted but had multiple graphics problem and showed 4 graphics ROMs as bad.

Patched a trace on and address line of the graphics ROMs to fix 3 of the 4 ROM errors. Patched 2 traces on the data lines of a graphic ROM to fix the last ROM error.

Tested
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Offline channelmaniac

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Re: Konami Games
« Reply #70 on: August 29, 2016, 06:25:56 PM »
Model: Turtles in Time
Symptom: Garbage on screen. Fails self tests.

Board came in with a description including "damaged in shipping."

Address line A0 on the video RAM was dead. Board appeared to have been badly flexed when damaged. Reflowed SMT ICs at 7J, 11J, and 15J then tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Konami Games
« Reply #71 on: December 09, 2016, 10:14:20 PM »
Model: Cadash
Symptom: Missing red. Graphics have wrong colors.

Cleaned edge connector to restore the missing read. Reflowed smeared solder shorting pins on a custom surface mount IC to fix graphics issue.

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

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Offline channelmaniac

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Re: Konami Games
« Reply #72 on: February 11, 2017, 01:23:42 PM »
Model: Sunset Riders
Symptom: Dead

Replaced physically broken 32MHz crystal oscillator. Game would play but character and enemy sprites were partially missing. Straightened three bent pins on a custom IC and reflowed the smeared solder on them. Tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Offline channelmaniac

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Re: Konami Games
« Reply #73 on: October 23, 2017, 08:49:11 PM »
Model: Simpsons
Symptom: ROM Error at 17C

Board would fail with a ROM Error below 4.85v. Replaced the ROM and tested the board down to 4.75v (the low end of TTL working voltage.)
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Offline channelmaniac

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Re: Konami Games
« Reply #74 on: February 10, 2018, 04:36:54 PM »
Model: Fisherman's Bait, Marlin Challenge
Symptom: NVRAM and Flash Errors

Reprogrammed the flash chips and replaced and socketed the NVRAM chip. The socket made the NVRAM interfere with the CD-ROM mount. The rubber anti-shock components were moved to another set of holes and the bottom plate installed 180 degrees out to accommodate this change. Reassembled the system and tested successfully.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Re: Konami Games
« Reply #75 on: March 23, 2018, 10:10:00 PM »
Model: Track & Field
Symptom: Dead, stuck in watchdog

Board arrived with the description "Board won't boot. Top board known good. New ROMs/sockets"

Replaced missing ribbon cable between the 2 boards then checked the CPU Address Bus with a logic probe on the 74LS241 ICs and found that Address Line A14 was stuck high. Checked the socket and it was stuck high. Checked the CPU pin and it was toggling. Replaced the bad (original) CPU socket and the game booted but had graphic corruption. Found that the Graphic ROMs at 11C, 13C, and 14C had weak programming and would read differently each time. Reprogrammed those chips successfully. The Graphic ROM at 12C was blank so it was programmed successfully.

The game would play but would sometimes reboot and had player graphic corruption at the start of the hurdles stage. Replaced a bad ROM at location 1A and reprogrammed the weak ROM at 5A. Tested successfully.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Offline channelmaniac

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Re: Konami Games
« Reply #76 on: March 30, 2018, 07:36:42 PM »
Model: Simpsons
Symptom: Incorrect graphics shown for player characters

Address line A16 on pin 33 of the ROMs at 16L, 3N, 8N, and 12N, was shorted to ground through a 150 ohm connection internally on the ROM at 16L, damaging all 4 ROMs. Replaced all four ROMs and tested.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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Offline channelmaniac

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Re: Konami Games
« Reply #77 on: April 28, 2018, 07:36:08 PM »
Model: Kicker
Symptom: Missing parts. No audio, characters stuck at screen bottom.

Replaced missing 4460 audio amp, heatsink, and broken volume pot. Replaced a physically damaged 1000uf capacitor in the audio circuit and tested. Audio was now working, but characters were still stuck. Replaced 2 missing 74LS163 ICs to restore character placements 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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Re: Konami Games
« Reply #78 on: July 29, 2018, 06:55:43 PM »
Model: Punch Mania
Symptom: ERROR 31 (Flash ROM error)

Downloaded the CD-ROM image and burned a replacement CD. Flipped DIP 4 and booted the CD to reinstall the software and reprogram the Flash ROM chips. Replaced the RTC chip as it was initializing it on each boot. Tested.

Note: When replacing the RTC it requires either an image or a copy of the existing one. Since the existing one worked enough to boot the game, a copy of it was used. If the RTC isn't programmed the game will make a loud whooping siren sound and put a red box with text on the screen.

Note: The .chd image for this game is 229MB (240,194,278 bytes)!!! Most download sites have the wrong .chd image so keep searching for the proper 918xxb02.chd file.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

Offline channelmaniac

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Re: Konami Games
« Reply #79 on: March 04, 2019, 01:35:12 AM »
Model: The Simpsons
Symptom: ROM Error 16C and Sound RAM/ROM failure

Replaced corroded Program ROM sockets on 17C, 16C, 15C, and 13C. Replaced the sound ROM socket on 6G. Cleaned the ROM legs, reinserted them, and booted. Ran a ROM Test and found the ROM at 3N failed. Replaced the corroded socket on the chip at 3N and tested. The game would not play music and most sounds and it would randomly fail the self tests on the sound components at 6G and 7G. Patched an open trace on address line A6 on the sound RAM and played the game through to the end to test.
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

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