Recent content by Chopsticks

Most things don't fail with a hard short, a partial short is much more common with digital Logic, 150 ohm to ground on the +5v rail and 53 ohm on the +12v rail are both clear indicators there is a partial short to ground likely inside the internal logic of one of the IC's. those reading are well...

those readings seem very low, id expect to see Kohm values. wouldnt hurt to pull all the ram, the ROM and the socketed PAL chips out and see if theres any change to those power rails you measured. maybe youll get lucky... if memory serves correct C9 if on the negative -12v rail. im not sure what...

good practice might be to check for shorts after pulling that blown rom, so +5 to Ground, +12v to Ground and +5 to +12v. personally after i do a full recap i normally just quickly check for power rail shorts before i power on. particularly due to the cap goo often eating away solder mask and...

I don't use any chrome based browsers myself, but i can confirm Firefox also has some mouse pointer issues, moving the the mouse pointer around seems to be 2-3 times slower on the emulation compared to my actual computer. apart from that i was able to run system 6.0.7 fine. i only did some quick...

try this: SR93882

I’ve always just used transcend branded industrial CF cards either 8 or 16gb. Never had issues with either. Worth noting to that industrial CF card’s will appear as a fixed non removable drive to macOS

there is definitely going to be more latency induced using usb midi interfaces compared to serial based interfaces due to the fact that usb introduced and required a large driver stack (for the time) where as the older printer and serial ports were running as pretty low level direct access...

yup the pre-made cable should be pretty easy to terminate into a IDC 10 pin female header socket without much trouble in regards to the two IC's the larger 16 pin one is a Geoport/localport line driver, so basically a RS422 dual line driver...

mini din 8 pin panel mount sockets are still made and sold along with pre made pass though adaptors too. then you'd jsut need to drill a hoe for the din socket and the two mounting screw onto a standard pci slot cover not sure where your located or what you skill set is but it wouldnt be hard...

they might cost more buy solid polymer caps are generally what i use on everything these days that gets recapped. considering they are the same footprints as electrolytic and don't have the same potential long term issues of leaking or drying out for me it makes sense. to be fair modern...

i swear i read somewhere years ago that the airport slot swapped a few pins around to prevent normal PCMCIA cards working, but the airport cards would still in fact work in a PC laptops PCMCIA slot, in the 2010's i tried out a few different card in my eMac and some got detected and some didnt...

@François its likely that without a monitor connected to the normal db15 video out that mac detects all three sense lines as unconnected/floating so it makes the assumption no display is connected and doesn't enable the video out circuitry on the motherboard. if you have a mac db15 to VGA...

@noglin i think mostly the mirror cable probably just ignores sense ID bits and goes on whatever sense id is configured on the internal harness. at least that would make logical sense to me. connecting sense ID 0 to ground was just a easy way to test a widely supported res and refresh rate as at...

i just had a read up on you thread on the build progress. you mention over there that about removing the hdmi port. it shouldnt be to hard to do if you can remove the solder from the four pins going through the pcb then either hot air or drag soldering the iron on the hdmi pins topside should...

to compile Sheepshaver on raspberry pi see this thread about halfway down: https://www.emaculation.com/forum/viewtopic.php?t=11017 also see this guide for getting Qemu m68k and PPC running on a raspberry pi: https://biosrhythm.com/?p=2837 hopefully there's a bit of useful info there to point...