Weird dotted lines on Macintosh 128k

[Retrogamer9876]

I just recently received an original 1984 Macintosh 128k. I turned it on to find this weird pattern on the screen with the floppy disk icon in the middle. I searched the internet and found nothing that looked like this. It also made a weird static noise instead of the normal boot chime.

I’m just wondering if anyone has any ideas on what it’s going on? Or some insight on what to do next?
Help would be very much appreciated,
Thanks!

 

[Byrd]

It's most likely failed RAM, is the analogue board recapped/check voltages

 

[Retrogamer9876]

Analogue board has not been recapped yet. I also haven’t had the chance to crack it open yet. It did get a 1 mb ram upgrade in 85-86. Still need to check voltages though.