Thanks for the help and assistance in this matter.
I've just swapped in a spare power supply producing 4.9v and the problem has gone.
The recap will have to wait :-)
Yes it's been recapped.
But I've just checked the voltages at the port and the 12V is reading 12.72v and the 5v is fluctuating between 4.59 and 4.62v :-(
My SE/30 has now started rebooting by itself in a vicious loop, and "extensions off" makes no difference.
On a couple of switch on's it also displayed the shown pattern for a couple of seconds, which then disappears before it tries to boot?
Doh!, The spec for component Q10 on the International Mac Plus analogue board was in Addenda D of The Macintosh Upgrade & Repair Secrets all the time, I just had to find it by using the lesser known skill of "reading" :blink:
It seems that The Dead Mac Scrolls doesn't refer to the Plus specifically, and doesn't say much about INTERNATIONAL boards.
The Macintosh Upgrade & Repair Secrets, also written by Larry Pina, does mention INTERNATIONAL boards in Chapter 6 "Dead Sets" (which is the problem my Plus has...
I am following Larry Pina's guide to repair a Mac Plus analogue board power supply, page 23, but I cant find a silicon controlled rectifier Q10 (CR400Y) or an equivalent on Mouser???
SOLVED.
I dug out an Airport Extreme base station, plugged it into a spare ethernet port on my router and set it up in bridge mode with another wifi network, then plugged an Airport Express into my SE/30' ethernet port and it works fine.
Many thanks for the help :-)
Thank you for replying.
(sharp intake of breath) I get some idea of the issues described in that document but certainly not everything, and I wonder if the problem is down to my router port-blocking AFP.
And I can still move files around by FTP with Netpresenz running on the SE/30 when even...
I have a NetGear WNCE2001 (RJ-45 Ethernet to 802.11) WiFi bridge adapter connected to the ethernet card in my SE/30 and I can ping the SE/30 from a Classic connected to my internet router via an Asante EN/SC and a 10T hub.
I'm running system 7.5.5 on the SE/30 and whether using MacTCP or Open...
You can manually set a files type with the application that created it, or set another one if you wish, say to look at the code an image with Simple Text.
I have also found it too but i’m not sure now whether it’s a PPC app. ;-/