Jump to content


  • Content count

  • Joined

  • Last visited

Profile Information

  • Location
    Bothell, WA, USA

Recent Profile Visitors

306 profile views
  1. Thanks for this. The board is going to have an appointment with the caps doctor. Great catch on my bad. I have only 1K caps as I was going from the diagram with the black background, not yours. I will grab some 10K 1/4 watt resistors from Vetco if they are open today.
  2. I am thinking this may be the case as I had the connections as you described. I will try to solder it up tomorrow and see how that goes. THx
  3. FWIW, I swapped back to the IIci and the without capacitor setup and it did not work there.
  4. Some good progress made today and I am now paused with a question. Here is my PN2222 (generic version) I don't have a breadboard so here is how the PN2222 is connected to my SeaSonic PS: Leftmost leg...Purple +5v is connected to the PS and the motherboard (2 complete wires from 2 different SeaSonics), in the middle I have a jumper connecting the PS to the MB and one end of a 1K resistor. The other end of the 1K resistor then feeds through the Green PS_ON connected to the PS; that end is then alligator clipped to the leftmost leg. Center leg has the red alligator clip. In the clip is a 1 K resistor and at the opposite end of the resistor is a grey wire that goes to the MB connector #9. Rightmost leg is connected to the black alligator clip that clips to a black ground coming from the PS. The above describes the hairball below: I had this setup first attached to my IIci and this did not work. Note that the IIci is fairly new to me and when it arrived its stock PS never fired it up. I added the SeaSonic and that worked fine but it needed to be manually switched. The board has never emitted sound so a recap is in order. I don't know if the caps situation could affect the power on so I decided to move to my IIsi that also needs soft power for its SeaSonic PS. The IIsi also failed to start in this configuration but it did make a sound and the monitor did briefly light up so some progress. I then tried removing the 1K resistor between the center leg and the the grey wire connected to the MB at position 9. You can see the grey wire in the red alligator clip with the 1K resistor connected to nothing (apology for the blur on that side of the photo): This setup worked as expected where both the power button on the keyboard and the power button on the PS fired the IIsi up. The OS also shut the machine down as expected so that is great progress. I then wondered what purpose the other 1k resistor was offering on the leftmost leg so I tried this: Removed the other 1K resistor Kept the purple +5v connected to the PS and MB but not attached at all to the PN2222 Attached the green PS_ON from the PS to the leftmost leg of the PN2222 Attached the grey wire in MB position 9 to the center leg of pf the PN2222 (photo above) Rightmost list of PN2222 is still connected to PS ground Here is what that looked like: This setup with no resistors worked as expected turning the IIsi on from the PS & KB and shutting down completely from the OS. Can anyone tell me where I strayed from @superjer2000's directions or why the no capacitors path I found works? THx!
  5. @JDW this is the ROM on my NuBus Radius PrecisionColor 8-Xj: It lists v1.5 however there are later versions. Are you saying you have this NuBus card that has had its RAM removed?
  6. @tact where did you get ROM chip for your Radius card? I need one for my NuBus Radius PrecisionColor 8-Xj discussed here. THs
  7. Thanks for this guys. Vetco is between work and home so I will swing by and replace the 1/2 with 1/4. I think all of their 1K resistors were $0.29/each. Hopefully the protoboard will be waiting for me when I get home.
  8. Yay, the site is back. @superjer2000 I went shopping and have 2 of the PN2222's and when it came time for the 1K resistors, the guy behind the counter asked what wattage... What wattage did you use for this? The guy thought they looked like 1/2 watt so I left with 4 of those. The shop didn't have protoboard so I have some on order that should arrive before the weekend. THx!
  9. Hi @superjer2000, I looked at pin diagrams after posting this. I had assumed PN2222 only had 2 pins and it was the 74LS04. I think I get how this goes together with the 3 pins on the PN2222 and I will update that diagram after some sleep. You mentioned that this powers the IIci from the keyboard. Does it also shut the system down when you do Shut Down from the OS? THx!
  10. Hey @superjer2000 I am about to go shopping and make a couple of these and I tried to stitch everything together and I have a question for you on your final assembly. Could you take a look at what this and LMK if I interpreted your connections correctly and LMK what that center connection is? THx!
  11. Unfortunately it does not. 1 appears on the ENvision monitor but nothing on the Samsung connected to the Radius card.
  12. Makes sense. Thank you.
  13. Hi All, I had a bit of time last weekend to try some suggestions from the seller of these cards wrt the Radius and that was to try with an adapter that had the dip switches. The video upload issue postponed this post... When I boot to with the Radius connected to my NEC multisync VGA adapter, the Radius logo appears however the system isn't functional (no cursor or menus). Notice the size of the Radius logo compared to my earlier post: Does it sound like I have a card that just has a dead ROM? It looks like 2 different resolutions, I'd guess 1024x768 and then 640x480 in the older image. I don't have an explanation for this. In both cases the system does not work. This is the dip switch VGA adapter I have that I have never been able to get to work with my 17" ENvision LCD: This is what the Radius looks like when I boot to a 24" Samsung LCD: I tried several of the dip switch settings but all the Samsung monitor saw was 640x480 and the IIci didn't see the Radius in the Monitors CP or SlotInfo.. I swapped the monitors and got the same results: I searched for some Radius software and found RadiusWare 3.3 and 3.2.5 neither seemed to recognize the card or offer to install an extension on CP, even if I peaked in for custom install. Does anyone have any other suggestions beside trying a different ROM? FWIW, the IIci is my only NuBus Mac (for now) however my Asante Ethernet card functions from all 3 NuBus slots so these appear to be functioning as expected. THx
  14. Hi All, I have an Asante NuBus card discussed here that does not play nicely with the 2 D Link 10/100 hubs that I have. These hubs work fine with my Asante IIsi/SE/30 cards. To get the Nubus card recognized I need to short the pins on the card after boot sequence has started. The Nubus card works fine (w/o shorting the pins) when attached to an old Hawking Tech wifi router. I don't like this hardware as it has no way to disable its old wifi. While I could get a hub like this Netgear EN104TP I am wondering if this could be solved with the ethernet cable. All I have is Cat5 or Cat5e cables. If I were get a Cat3 cable, would that force the D Link hubs to 10 mbps? I Googled a bit yesterday but could not find the answer. Does anyone know? THx!
  15. No cache does indeed take some of that shine off.