atari email archive

a collection of messages sent at Atari from 1983 to 1992.

SYSTEM I LSI MAIN PCB's

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FYI: ON SYSTEM I LSI MAINS THERE IS AN "AS NEEDED" DEVIATION IN EFFECT
 	THAT MFG. IS NOW PUTING ON ALL BOARDS.

	SYMPTOM: GAME WILL NOT ENTER SELF-TEST; IF YOU CAN READ SOMETHING
		 ON THE SCREEN, YOU SEE THE BAD COLOR RAM CODE.

	SOLUTION: PUT  (2) PULL-(UP OR DOWN?) RESISTORS ON THE LS244 AT LOCATION
		  C5 (I THINK). THESE ARE ADDRESS LINES IN THE COLOR RAM 
		  CIRCUIT.
		  SEE MINH FOR DETAILS.
Message 1 of 1

Jul 09, 1986