Jump to content

macclassic

6502
  • Content Count

    243
  • Joined

  • Last visited

Everything posted by macclassic

  1. macclassic

    SE/30 rebooting problem with screenshot

    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
  2. 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?
  3. macclassic

    SE/30 rebooting problem with screenshot

    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
  4. 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???
  5. macclassic

    silicon controlled rectifier Q10 (CR400Y) equivalent?

    Thanks for that, but thankfully replacing the resistor at R55 solved my intermittent "no bong and black screen" issues
  6. macclassic

    silicon controlled rectifier Q10 (CR400Y) equivalent?

    That too! but I have lost a lot of sleep lately.
  7. macclassic

    silicon controlled rectifier Q10 (CR400Y) equivalent?

    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"
  8. macclassic

    silicon controlled rectifier Q10 (CR400Y) equivalent?

    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, intermittently) yet it still only shows the layout of the the US board, as shown, with the positions of Q11 and Q10 in opposite places to the INTERNATIONAL boards. So I'm going to follow this book instead. And finally, my board has the following message printed along the bottom shown in the last image
  9. macclassic

    silicon controlled rectifier Q10 (CR400Y) equivalent?

    Ha, Ha, I will double check the page
  10. macclassic

    silicon controlled rectifier Q10 (CR400Y) equivalent?

    Yes attached, only Larry's drawing locates Q10 where Q11 is and vice versa?
  11. 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 Transport my Classic doesn't show in the SE/30's chooser window, yet the SE/30 shows in my Classic's chooser window but doesn't respond. And if both machines are hardwired to the 10T hub then file sharing works perfectly. So how can I be losing file sharing with the NetGear adapter ?
  12. macclassic

    NetGear Wifi bridge adapter file sharing problem

    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
  13. macclassic

    NetGear Wifi bridge adapter file sharing problem

    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 using my iPhone but I still hanker after the ease of file sharing
  14. macclassic

    File type software Sets its type ?

    I can't find a piece of software I found very useful, I think it was called Sets its type (maybe all one word, it might even be of Japanese origin?
  15. macclassic

    File type software Sets its type ?

    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. ;-/
  16. My Classic Mac defaults to LocalTalk instead of Alternative Ethernet and doesn't save my selection of Alternative Ethernet on restarting which I would like as I am using a Mini Asante EN/SC for file sharing. Is there a way of making my selection stick?
  17. macclassic

    Classic Mac defaults to LocalTalk v Alternative Ethernet

    It took about a minute to transfer 828KB to my Classic with Appleshare and half that with FTP
  18. macclassic

    Mac Plus cut resistor?

    Hi, Checking out my Mac Plus I spotted a cut resistor on the logic board. Why would someone do this?
  19. macclassic

    Mac Plus cut resistor?

    Oops! Yes I've also just read that on EverMac.com but thanks for the reply
  20. macclassic

    Classic Mac defaults to LocalTalk v Alternative Ethernet

    My error, I had the Gateway IP address wrong in MacTCP So I put my routers IP address in the Gateway box and placed an alias of MacTCP Ping in the startup folder to give my Mac a presence on the network, and this works and also retains my setting of Alternative Ethernet in the Network control panel through restarts. So my guess is a check occurs during the startup of networking and with the wrong Gateway IP address this check fails and makes networking fall back to LocalTalk ?
  21. macclassic

    SE/30 Freeze during startup

    My SE/30 is now freezing during startup from a cold start and on the second try it starts up no problem. It also freezes from a cold start with extensions off and I think it's happening before the extensions are drawn on the screen. Would Macsbugs show me what's happening? and does it sound like the RAM needs re-seating?
  22. macclassic

    SE/30 Freeze during startup

    FINALLY DIAGNOSED EXTRA MILE CLUB The freeze was being caused by a failing hard drive!
  23. macclassic

    SE/30 Freeze during startup

    I seem to have fixed this problem now by taking the RAM out and cleaning all the contact pads and sockets. Oh joy!
  24. I've just got another SE/30 which will only read write protected floppies and doesn't recognise unprotected floppies, but asks to format them, and when I try this it makes the usual chugging sounds but then fails at the end and says the disk is bad. Connecting a, known to be good, floppy drive makes no difference and a SCSI Zip drive also works fine on this machine. And the logic board has been recapped. Help, where should I start and what should I be looking at?
×