New Life Games LLC
NLG Users Repair Logs and Other Ramblings. Request your very own topic. Just ask any site staff. => Channelmaniac's Arcadecomponents' Old School Repair Logs => Topic started by: channelmaniac on May 04, 2014, 07:54:51 PM
-
Model: Falcoln Crazy Kong
Tip: Pinout
Seems there are several different pinouts on the web for Crazy Kong and I could not get any of them to match up with the ground and power pins on a Crazy Kong game that was on the bench.
This is the pinout for the 18/36 pin edge connector version of board. This particular board has 2 edge connectors on it and both are the exact same pinout, but the connector slides on upside down on the edge connector on the side compared to the one on the end of the board. This is for the edge connector on the end of the board, looking AT the edge connector from the edge of the board:
Parts Side Pin Solder Side
Blue Out 18 P2 Button 1
Red Out 17 P2 Left
Sync Out 16 P2 Right
P1 Left 15 Green Out
P1 Right 14 P1 button 1
P1 Start 13 P1 Coin
P2 Start 12 P2 Coin
N/C 11 P2 Down
N/C 10 P1 Down
+5v 9 +5v
Gnd 8 Video Gnd
P2 Up 7 N/C
P1 Up 6 N/C
+12v 5 +12v
Speaker 4 Speaker Gnd
Gnd 3 Gnd
Gnd 2 Gnd
Gnd 1 Gnd
-
Model: Crazy Kong Part II
Symptom: Dead
Fixed smeared solder short on bottom of board. Board would come up but had multiple pictures interlaced horizontally and vertically on screen. Music played too fast.
Horizontal and Vertical sync outputs were both too fast. Replaced 74LS161 at 7A and 8A and patched an open trace on pin 9 of IC at 8H to fix horizontal sync problems. Replaced 74LS74 at 6P and 74LS161 at 6R to fix vertical sync and sound speed issues. Tested board.
-
Model: Crazy Kong Part II
Symptom: Dead, garbage on screen
Replaced 74LS245 and 2x 74LS125 chips on the main data bus. Replaced bad EPROM and tested. Replaced bad 74LS74 in the /WAIT circuitry. Tested.