ZZZ

Zaccaria Galaxia Maintenance 2023

01/06/2023 - Northwest Pinball and Arcade Show (2023)

Zaccaria games at the Northwest Pinball and Arcade Show Zaccaria games at the Northwest Pinball and Arcade Show

By show day 2 the game had intermittent credit issues. Unplugging the coin door connector resulted a continuous credit that allowed the game to remain coined up until the end of the show.

23/07/2023 - Galaxia game PCB repair

Galaxia game PCB on the bench Galaxia game PCB on the bench Galaxia cracked resistor R36

Setting up the game PCB on the bench with the test control panel found COIN1 triggering 1 coin with 2 credits and COIN2 having no effect. Checking the input matrix found D10 both sides low, D4 both sides low and R26 stuck low. Checking IC 5M (40097) pin 6 COL2 was stuck low. Checking IC 5N (LS155) found:

IC 5N pin 9 mapped to ROW0 (CN4-15 & CN3-10). Disconnecting the control panel didn't change anything - COL2 was still stuck low. Swapping socketed IC 5M still resulted in COL2 stuck low. Visual inspection of R36 (2.2 KOhm) found it cracked in half and replacing it fixed IC 5M pin 6 COL2. COIN2 now coined as 1 coin 1 credit OK.



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