News:

FORUM UPDATE:  The email problem has been fixed, and emails should now be sent out immediately instead of queuing for days.

Main Menu

X68000 PRO Problems

Started by urnhurrell, February 22, 2018, 06:02:43 AM

Previous topic - Next topic

urnhurrell

So, I've been working on my PRO for around 8 months now. It was working fine in my apartment, and then I moved into my house and I stopped getting a video signal. I assumed it was a cap problem, so I replaced any dying caps. All were in the power supply, so it made sense to me, considering that's what I hear is usually the problem with x68ks. It was still dead. I got help from a facebook group, and replaced the SN74ALS05AN chip (socketed of course). A signal came through, but now it's wrapping vertically down the screen. I metered everything again, and the 3v battery was going out. I finally replaced that, and the screen is still wrapping. Any suggestions? I'm pretty open. I feel like I've already replaced so much. Thanks!

vanpeebles

Did you replace any caps on the board, or just the PSU?

urnhurrell

Just the PSU. I metered the caps on the board though, and they're all up

leonk

Quote from: urnhurrell on February 23, 2018, 05:46:41 AM
Just the PSU. I metered the caps on the board though, and they're all up

testing ESR in circuit is iffy at best. Might as well do a full cap kit job.