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Old 04-16-2021, 04:15 PM
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bandersen bandersen is offline
RCA 741PCS
 
Join Date: Mar 2009
Location: Chicago, IL
Posts: 8,777
21AUP4 and 8YP4 have different # of pins so I assume you are using an adapter ? Could be that G1, G2 and K are not going to the correct pins.

Do you have an 8XP4 ? That would be directly compatible.
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