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Author Topic: KKI Arcade Games  (Read 1290 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?
KKI Arcade Games
« on: May 24, 2017, 09:05:50 PM »
Model: Triple Punch
Symptom: In pieces

Installed a missing 8255 PIO chip, replaced a cut resistor, cleaned dirty pins on the daughterboard, and tested. Monitor flickered and speaker buzzed. Checked pinout of the adapter vs. the pinout on KLOV and it was correct. Traced the sync line backwards to find it lead to the audio amp chip - the pinout on KLOV is incorrect. Traced the video outputs, repinned the adapter, and tested.

Incorrect pinout on KLOV:
Quote
            Solder Side            |             Parts Side
               +5              | A | 1 |            +5
               +5              | B | 2 |            +5
                               | C | 3 |
           1P  Left            | D | 4 |
           1P  Right           | E | 5 |
           1P  Up              | F | 6 |
           1P  Down            | H | 7 |
           1P  Punch           | J | 8 |
                               | K | 9 |
            Coin  2            | L | 10|          Start 2
            Coin  1            | M | 11|          Start 1
             Green             | N | 12|
              Red              | P | 13|
             Blue              | R | 14|
             CSync             | S | 15|         Speaker (+)
              +12              | T | 16|            +12
              GND              | U | 17|            GND     
              GND              | V | 18|            GND

Correct pinout:
Quote
            Solder Side            |             Parts Side
               +5              | A | 1 |            +5
               +5              | B | 2 |            +5
                               | C | 3 |
           1P  Right           | D | 4 |
           1P  Left            | E | 5 |
           1P  Up              | F | 6 |
           1P  Down            | H | 7 |
           1P  Punch           | J | 8 |
                               | K | 9 |
            Coin  2            | L | 10|          Start 2
            Coin  1            | M | 11|          Start 1
                               | N | 12|           Green
                               | P | 13|            Red
                               | R | 14|           Blue
           Speaker (+)         | S | 15|           Csync
              +12              | T | 16|            +12
              GND              | U | 17|            GND
              GND              | V | 18|            GND
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com

 

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