Macintosh Plus analog board issue

[Fred1212]

You may need to put a different heat sink on it as it is reversed. There looks to be plenty of stock of these worldwide which is good.

 

[ijnfuso]

Welp, the other day I got a new analog board. Recapped the three RIFAs, the seller said it was taken from a working mac, and guess what? It still has the same issue! I really have no idea.... could it be a CRT issue? Maybe the CRT has weird current draws or has issues, I don't know. Really stuck!
View attachment 79614525281__A319A84C-796A-4C5C-8794-1B6A55DB8828.mov

 

[bibilit]

Voltage probably too high and security kicking in.

You have got the chime… try lowering down the voltage (on the side you have got a potentiometer to do so)

 

[ijnfuso]

try lowering down the voltage

I already tried lowering the voltage and it did not change anything. I also reseated the rom, the ram, tried putting in a battery, but I got no luck whatsoever.