Search results

I did already :( All 3 versions are on Macintosh garden 1.1, 1:2, and 1.3. It’s a bummer I finally got my iicx I had in the early 90s fixed and then both the radius rocket and the spigot card don’t work 😭

Ahh gotcha... ok.

Well the subject is Video Spigot issues and the discussion involved versions of the software so I figured whats the harm and why bother creating an entirely new "Video Spigot" thread since it is an extremely rare card and subject...

Hey so I just dug my video spigot card out and put it in my newly repaired Mac IICX and the card shows up under MacEnvy and TattleTech on NuBus but when I launch ScreenPlay v1.1.1 the YenYang icon spins for a second and then the mouse freezes and computer locks up. I have tried: • System 7.1 &...

Success! We have a working IICX! One down one to go lol..

Just got a happy chime :D Bad UJ3.. it looked pretty bad. I went ahead and lifted UJ1,2, and 3 and cleaned the pads up good and im replacing all 3 with new ones now. After that I'll see what the NUBUS and video loos like 🤞

Ok good to know and now if I knew what exactly the P.O.S.T checks. I know it checks ram. My SIMMs are tested good. I am suspecting it’s the MUX chips below the SIMMs

Thanks for confirming. The problem is I don’t know what the state of the video cards are so I want them out of the loop. With none card in there’s no difference. Same death chime the instant I power on and no activity on the display. With the other card there’s no chime at all. So I plan to...

I fixed the power circuit issues. So now the soft power and original PSU are working. Still tracking down the chime of death cause. Quick question. Does a healthy IICX make a normal startup chime if it has ram but no video card in the NuBus slot? Would like to know if I can put video aside...

OK OEM power supply is good,. the problem is the +5 feed to pin 9 to turn it on is too weak causing it to collapse. if i disconnect that pin and jumper it myself to pin 10 then the board comes up (with the sad mac). while the board is running if i connect that back the power supply collapses...

I took the simms out of the plus and set them aside and then tested all of the iicx simms I have. They are 1mb simms totalling 4mb per bank which is the maximum amount you can put in a Plus. So now the IIcx has 4 1mb known good simms in bank A and bank B is empty.

That’s what I was thinking. I haven’t noticed anything getting hot but I’ll check it. I have a thermal imager too.

Tested all the RAM with the Mac plus. All but one SIM was good. While using the bench ATX supply under load on the board the voltages are 4.6v on 5V rail and 12.8 no load = 5.1v and 12.5v 12v increases in voltage under load. I should use only bank A full of SIMMS I suppose

Yeah that is exactly what I did. For now. But the 5v out on the psu says 12A and 1.5A for 12v. 15A on 5v has to be over kill. I bet it’s more like 1.5 to 2a if that.

DO you know how much current the board SHOULD be pulling on the 5v and 12v rail?

Yeah. That why im making a molex cable.. i can then jumper pin 10 to pin 9 to manually power it on and selectively supply the 5v and 12v to the board and put an amp meter on it to check the load.

This is odd. With ATX supply connected I have a solid 12v off L10 and pin 12 of the sound chips. And solid 5v on all of the logic. And sad Mac chime. Stock PSU get starved. Could plow the stock PSU but when I kick it on without the PCB load it powers up, fan spins and I get 12 and 5v. It also...

It's looking like something is starving the PSU. The modern ATX must be able to handle the load but on the stock PSU the voltage to pin 9 (power on) and 5v rail is dropping to 1.9v and the 12v rail is dropping to about 7. I am suspecting it might be something on the 12v rail. Im going to make a...

That might work

Dang I am in USA so shipping is going to be $30.00….