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  1. M

    Reverse engineering the LC II Logicboard

    With the (hopefully) final revision of the LC 1 board and the second revision of the LC III both with JLCPCB for manufacture it;s time to turn my attention to the LCII. This was initially going to be the second board LC board I worked on before that pesky LCIII board distracted me... The boards...
  2. M

    Reverse Engineering the Macintosh LC III Logicboard

    Time for another board! I was initially intending to work on the LC II board next, however about a week ago I picked up a LC III board and started having a closer look at it, I initially expected this to be a 6 layer board and require redrawing form the schematic however the closer I looked the...
  3. M

    Reverse Engineering the Macintosh LC Logicboard

    With my Plus PCB's something along quite nicely (And by that I mean I'm refreshing JLCPCB's order page every 4 minutes to see how production is getting on) I decided to look at what to work on next (Something that actually needs reproducing!) and settled on the LC series, battery damage is...
  4. M

    Reverse Engineering the Macintosh Plus PCB

    Like many of us I have been following Kai and Bolle's Progress in reproducing various Macintosh PCB's I thought it might be fun to have a go myself! I ended up settling on the Macintosh Plus (Even though there is no real need for Plus reproductions) since it is a fairly simple PCB (2 signal...
  5. M

    HDD activity LED's

    Simple question, Where activity LED's in older macs on blinking off for activity or off blinking on (Like modern pc's)? I need to sort out the activity LED circuit on my SCA to SCSI adapters (Which techknight pointed out to me was incorrect several years ago but I never got around to fixing...)...
  6. M

    PowerBook 100

    Picked picked up fairly nice looking PB100 on eBay a few days ago, Seller was fairly local to me so shipping was fairly quick Got it today and luckily it survived shipping OK (The packaging was not the best I have ever seen, but was far from the worst!) I can't test it yet as the power adapter...
  7. M

    Performa 400 Battery damaged Logicboard Repair

    A little while ago I brought a ago I brought a Performa 400 on eBay with battery damage, today came the day to try and get it going again First ting was to clean the battery residue off the board, this was done with vinegar and a lot of scraping, then washing in water to remove the vinegar...
  8. M

    LCII Killed FloppyEMU

    I'm working on a battery damaged LCII (well, actually a Performa 400 but it's the same mac, the logicboard is even marked "LCII" :) ) As far as getting the board working it is all going well, the board cleaned up really nicely with some white vinegar and  I ever managed to save the rom chips...
  9. M

    PowerBook 1x0 FDD pinout

    Dose anyone have the pinout for the PowerBook 1x0 series FDD connector? I am wondering if it could be adapted to work with desktop mac's (I have case mod project I need a FDD for and recently found a couple of powerbook FDD drives which would work better than the desktop drives as they are slimmer)
  10. M

    IIx Chimes of death

    So I'm trying to figure out what's going on with my IIx, When turned on it it chimes and immediately gives chimes of death. According to apple's troubleshooting guide this is a ram issue What I have done so far is: Recapped the board Try with known good ram (Both in all 8 slots and only in...
  11. M

    Rebuilding a iBook Battery

    So over the the last couple of years despite not doing much work on my vintage computers I have been keeping a eye on the scrap pile at work in case anything interesting turned up on it, a consequence of this is that my iBook collection seems to have grown form 2 laptop's to 6 :) Most of the...
  12. M

    iMac G3 (Rev A -> C) G4 CPU Upgrade

    It's been a long time coming, But I finally gave this a stab today I started by removing the old CPU from the card (anyone who dose BGA rework professionally might want to look away, my setup isn't exactly pretty....) A overview of the setup, I'm using a griddle as a preheater and a attan...
  13. M

    Connecting a ImageWriter II To a Modern computer

    I'm looking for a little guidance here, I have brought a USB to RS422 serial adapter and have wired up a according to these instructions: http://www.emaculation.com/doku.php/imagewriter_serial_cable_printing(I'm using a different adapter, but have wired it up the same and can't see why it should...
  14. M

    Finally, a working portable!

    Finally i have my portable working! Just got it's logicboard back from it's 8,000 mile round trip to techknight (who i must thank for all the work he put in, removing all 32 ram chips not once, but twice!) I put it all back together (amazingly i didn't loose any parts while it was sitting...
  15. M

    Xserve G5 Won't boot

    Hey, just recived a xserve g5 i brought on ebay, only problem is it won't boot When the power button is pressed the xserve turns on and the fans spin up, but it dosen't boot. The power light is not on, none of the hard drives power up, and i get nothing onscreen, the system identifier light is...
  16. M

    LC 1 Ram Upgrade

    Ok so all this ram upgrade talk got me intrested, i have a spare LC board lying around.... I know uniserver tried without success before, but i have some time to kill today so figured i would try Removed some 512k chips from a old 8mb sim and soldered them to the LC's board, and... nothing...
  17. M

    Sil 3152 flashing problems

    So i ordered a pc silicon image 3512 card off ebay to replace one that failed in my xserve, i have flashed a few of these using the weibetech flasher and have never had any problems I put the card in my g5 and ran the firmware updater, which caused it to kp after entering my password Knowing...
  18. M

    IIci PSU suppression caps replacement

    Got my IIci yesterday, and as i suspected the suppression caps in the psu have failed One of them i can find very easily (0.22uf 250VAC) but the two smaller ones are proving harder to find (4.7nf 250VAC) am i right in thinking it would be ok to use a slightly larger value of cap here? (e.g 10nf...
  19. M

    PowerBook Joblot

    Just won a auction on ebay for 6 68K powerbooks, which breaks down as 1 x 140 1 x 145 1 x 145b 3 x 165 Allong with some parts (Ram, a pds network card, 7 2.5 scsi hdd's (one clearly has "bad" written on, hopeing a couple will be working) an unidentified board (anyone got any ideas what it...
  20. M

    Terminating cheapo SCA -> 50Pin SCSI adapters

    As requested I took some pictures building the Mark 2 of these adapters so anyone interested could put them together Parts: Chepo 80Pin SCA to 50 Pin adapter (http://www.ebay.co.uk/itm/130772715339) 18x 110ohm resistors, i suggest you use 1/8 watt or you will be pushed for space (1/4 should...
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