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This is the exact problem: Does anyone have any suggestions? I've re-capped all the electrolytics and tested all the tantalums for shorts...

Hi guys, I have a pb 190 which when turned on does the regular Apple 'good' boot chime, then after a little while (I think after it counts the ram because the time changes depending on whether I have the extra ram installed or not) it does a very slow death chimes, reaaallly slowely. No screen...

I'm sorry I don't know exactly what it was now. I just trawled through mouser till I found something approximate.

I can confirm that it * DOES * work. This PSU is perfectly compatible. Plugged into my Cube today, all is well!

Guys... thank you all for your valuable info! I've found a modern top-quality efficient replacement for our Cubes: All on mouser: 80 Watt TDK PSU List of other PSU wattages available (110 and 65) Datasheet of 80 watt (says +v is on pin 3&4) Datasheet of plug (shows pin 3&4 are the two...

@Byrd What do you think? Can the plug be sourced?

Okay then I think that rules out the Kycon mini-din as that is 8.90mm: https://www.mouser.co.uk/datasheet/2/222/kyco_s_a0000255670_1-2271771.pdf And of course, for some reason the Amphenol one has no measurements... Am I reading this correctly? Thx

Would you guys say either of these are compatible connectors? : https://www.mouser.co.uk/ProductDetail/Amphenol-Tuchel/T3300-013?qs=dGKrImpajHriEbjCBaluDA%3D%3D https://www.mouser.co.uk/ProductDetail/Kycon/KMDAX-4P?qs=0mB6p5CG6OhHl%252BLiswyRfQ%3D%3D The Amphenol looks correct pin placement...

Hey guys, I've started running my pb 1.67ghz g4 osx leopard machine without its main battery as it's basically dead, but now it always loses time on boot. Is there another battery I need to swap out? Cheers for advice, Steve

I had a search on the internet but can't seem to find any topics on this. Although the panel in the 17'' powerbook is ok, I think it is only TN and the contrast ratio isn't too great. I'm wondering if the part is replaceable with a more modern IPS display, does anyone know? Thanks

Hey guys, In my previous thread I heavily modded my G4 Cube and sprayed it copper. I wasn't keen on the copper so today re-sprayed it gunmetal grey. After spraying the case, since I had the internals of the Cube out I decided to route the USB sound card internally, remove the outside...

I found a site here that has some images you could try: http://www.savagetaylor.com/2018/01/05/setting-up-your-vintage-classic-68k-macintosh-using-a-scsi2sd-adapter/ I am not an expert on Macs to be honest, my _only_ experience with vintage Macs has been restoring this machine and an 840av...

Hey guys, The G4 Cube PSU is terribly inefficient. Even when the machine isn't turned on the PSU is kicking out heat. Has anyone known of a modern equiv or has anyone got the pinout for it?

Hi all, I have a fairly strange issue with my terminal in Leopard 10.5.8 - Upon opening terminal, it is active and infront - When clicking terminal (anywhere) it gets pushed to the background - When trying to click terminal now, the mouse does not even recognise a terminal window, it will...

I found this option in the TCPIP control panel, I'll try unchecking 'Load only when needed' and see how it changes things.

Hi there, I am not too experienced with the inner workings of Macos 8.1, I am trying to get my internet to come up faster.  System specs: PB190cs w/ 40mb RAM CF card HDD MacOS 8.1 3com 589d ethernet using drivers from this page: https://www.floodgap.com/retrotech/mac/enet3c589/ problem...

Also replaced the corroded battery connector today, not an original apple part but its dimensions seem ok.

U27 on the rear of the PB190cs, just out of curiosity:

Recently I was shown a horror story of capacitors inside the screen inverter board & display unit going bad and ruining someones old powerbook. I then realised that although my screen was new old stock, the caps were still 30 years old and have a shelf life. I opened it back up and replaced...