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Author Topic: A3000D Boot Issues  (Read 4775 times)


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Offline TumbleweedTopic starter

Re: A3000D Boot Issues
« Reply #29 from previous page: April 26, 2021, 06:41:23 PM »
The SCSI chip is WD33C93A-PL, pic attached. I have a buster 11 in my A4000D (which is also not working!). Could salvage from that.

I plan to give the board a proper clean with https://www.amazon.co.uk/WD40D-N-A-Contact-Cleaner/dp/B006UCJ5WQ/ref=sr_1_1?dchild=1&keywords=isopropyl+alcohol+wd40&qid=1619458728&sr=8-1.

« Last Edit: April 26, 2021, 06:49:04 PM by Tumbleweed »
A3000T, Cybervision64, CSMKII 060; A3000D, PicassoII, Z3 Fastlane; A2000D, 040, PicassoII; A4000D, A1200, Blizzard 030 MKIV  (not working - next project)

Offline Pat the Cat

Re: A3000D Boot Issues
« Reply #30 on: April 26, 2021, 08:07:27 PM »
Original scsi controller chip. Can be a little quirky.

Checked 5V is going into and out of that diode? It is the most likely cause.

Also worth checking voltages, if you got low 12V or 5V that would affect the drive. Probably OK.

You might want to put a little DeOxit in the scsi controller socket, that might do the trick. If you're going to clean, do a little maintenance on the sockets too. Doesn't hurt putting some on the pins that run into ribbon cables, but do let it dry and wipe before putting cables back on.

"To recurse is human. To iterate, divine."

A1200, Vanilla, Surf Squirrel, SD Card, KS 3.0/3.z, PCMCIA dev
A500, Vanilla, A570, Rev 5, KS 1.2/1.3 Testbench system
Rasp Pi, UAE4ARM, 3D laser scanner, experimental, hoping for AmigaOS4Arm, based on Watterott Fabscan Pi