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TimHD

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Posts posted by TimHD

  1. Have you considered using the internals of a grey/beige mouse within the black mouse?

     

    I had a similar issue with a black mouse that came with the insides broken (considering the actual 5200 was fine, I could live with the mouse only being damaged). I even considered getting a grey/beige ball cover underneath, but I think they are slightly different sized?

     

    I have all the pieces, and might have a similar go with super glue if yours continues to hold on…

  2. Speaking of which, is there an authoritative guide to finding legit CPUs - esp the 68040 non-LC 40mhz ones? Did I see once that they no longer make them hence it’s about finding old ones and avoiding fakes/screen printed variants that are slower or actually LC chipsets?

  3. Ditto. Certainly for a cache module. Would also help underwrite by committing to getting one or two more complete sets for other Macs of mine. 

    I assume you'd just supply the board (or someone else here who does this) and we'd need to source CPUs?

  4. On 7/1/2020 at 4:35 AM, Bolle said:

    After some back and forth it turned out that not all combinations of CPU and cachecard will run at 40MHz.

    I swapped around different CPUs and even found a combination where the original cachecard would refuse to work resulting in a hard crash once the Carrera INIT loads.

     

    I will be revising the PCB design a little and then post the gerbers and a BOM so everyone can build their own cachecards.

    Is there a matrix of what works/doesn’t, or had the issue been resolved?

  5. Note: I wonder if the admins could create a Repairs or Recaps forum so that we can collate and capture knowledge like the below before it is lost. 
     

    https://jbretro.wordpress.com/2019/07/10/m1296-recap/

     

    The aim of this post is to create a reference online of capacitors used in the main and neck board of the Apple 12″ Macintosh Monitor (M1296).  Attached is a spreadsheet of capacitor values that has been created by the writer and verified / checked for accuracy and show photos of the recap.


    This monitor’s design has the front bezel match the curve and width of certain Macintosh computers, famously the LC line and also IICI.  It is a fixed resolution 512 x 384 @ 60 Hz RGB monitor which used composite sync.  Internally it is a Japanese design by Matsushita and uses a shadow mask CRT tube.  It is not compatible with traditional analogue RGB video signals, even when fed clean C-SYNC.

     

    I found the build quality to be strong and pleasing to repair.  My monitor featured vertical collapse when turned on and was known to have little use from new, cosmetically perfect and from a single owner in Sydney, Australia.


    Capacitor C418 was the failure point for me, along with rotted traces from heavy capacitor leakage.  The main board was indeed wet and electrolyte pooling in the grooves of the case.

     

    I chose to re-cap everything including the neck board as clearly I felt like a challenge.  After repairing some traces and verifying my work, the monitor was tested as working ‘first go’.  The image remains pristine – clear, converged well and bright.

     

    PDF spreadsheet M1296 Repair Recap rev 2.xlsx (attached)

     

    Apple 12″ Macintosh RGB Monitor M1296

    Main board

    uF

    V

    C401, C413, C502, C523

    1

    50

    C416

    22

    25

    C418

    2200

    6.3

    C420, C519

    220

    25

    C501, C526

    47

    50

    C507, C520, C522

    10

    50

    C512, C414

    100

    50

    C517

    100

    25

    C518

    10

    160

    C521

    82

    160

    C525

    0.1

    50

    C908 (Comment: Negative Black)

    220

    450

    C914

    22

    100

    C915, C921

    10

    100

    C919

    330

    180

    C920, C417

    2200

    35

    Neck board

    uF

    V

    C203

    1

    50

    C205

    220

    100

    C206, (C517 from main board)

    100

    25

    C2B4, C2G4, C2R4

    2.2

    50

    C2R2,C2R1,C2G1,C2B1,C2G2,C2B2

    47

    25

    C6B5, C6R5, C6G5, C207

    1

    160

    C6R3, C6G3, C6B3

    47

    25

    m1296-repair-recap-rev-2.xlsx.pdf

  6. 16 hours ago, mvallance said:

    Hi. I have a simple question: is the Stylewriter 2400 orange light indicating  a specific problem? 

    I have added a new ink cartridge, cleaned with alcohol, the PowerBook 1400c connects  BUT cannot print due to the orange light. What could be the error?

    Thank you. 

    Yes. It’s an error. See page 24 of the service manual for the error message summary table https://www.applerepairmanuals.com/the_manuals_are_in_here/Color_StyleWriter_2200.pdf

  7. On 7/2/2020 at 11:55 PM, Unknown_K said:

    How many people actually own a Carrerra? I have one with cache if my memory is correct.

    I have one. I think it’s in one of my IIci or se/30s. Pretty sure it didn’t come with a cache card. 

  8. 8 hours ago, cheesestraws said:

    A/UX will run perfectly happily off a “virtual” scsi2sd disc. That is how my installation is set up: multiple virtual devices for a recovery disc, two MacOS versions and A/UX. Never tried it on a IIfx, mind, but it ought to work. 

    Is there a way to get a disk image of your scsi2sd AU/X partition? Been keen to set one up but I see it’s quite a tricky setup process...

  9. 8 hours ago, Byrd said:

    You know, I might have the bracket as I never used it with my TAM (ended up cutting a hole out in my PCI USB card to fit it in) - but give me a few days to look, I'm back at work ...

    Ta. Apparently there's an inside & outside small steel bracket and possibly even a plastic cover. Again, my version seems to pre-date these later models as the manual peaks out at 5400/75 and LC580 options (plus 'Nubus' slot references).  I did see some cheap newer kits in the USA for like $5 but the shipping is about $50 plus right now!

  10. If I get the better drivers, do they help with the built in display or only the externals?

     

    Am thinking I might get some further partitions on the 20GB hard drive, one for 7.61 (for it's 040 heart - not sure if I boot without the Sonnet extension it falls back?) and possibly also 8.0 (5500/225 603e) - while it's currently configured as a PPC (7450) 9.2.2 (Old World) thanks to the G3 L2 400/1M card. 

     

    Quite a beast and not bad for something I picked up for under A$100... 8)

  11. I have an earlier (5200/75 era) Apple External Video Connector Kit (M4099LL/A) which seems to only have the large metal retainer bracket to mount the DB-15 VGA out port. Later version of this connector kit (5400/225 era - see https://usermanual.wiki/Apple/EarlierPowerMac.1073851292/html) also have the ‘Small Metal Bracket’ and ‘Small Metal bracket with Ribs’ and Jack Nuts included (see page 2.

     

    As I am trying to add this to a 5500/225 via the lower small access slot on the rear (called “Nubus Card Access door” on those versions, but the 5500/225 is PCI only), the earlier kit I have doesn’t have one!

     

    Hence hoping to buy those Small Brackets or swap them for the large bracket I have in my kit. Alternatively, are there other sources anyone knows where I could acquire a mounting bracket from other kits/sources? 

  12. Thanks for the comments (and glad that cable has helped). Will any 7” PCI video card work, or is there a specific sub-class of video cards that can be used (esp if a 3DFX Voodoo is too pricey)? I have a PowerMac 6400 that currently has PSU issues, with a PCI video card I might try if compatible...

     

    Looks like I have, as you noted, a Radeon 7000 in there - do you know if that is a 3rd party card (not Apple bundled) or donated from another Mac series, eg 6400)? 

     

    Finally, I have an Apple External Display Connector kit (a DB15 connector that plugs into a dedicated connector on the 5500 motherboard) - see my related post seeking a bracket - would that be accelerated and running off the ATI iic graphics on the motherboard?

  13. Some time ago I picked up a black PowerMac “Directors Edition” 5400/180. It came with a 5500/225 (PCI not PDS) motherboard, a Sonnet Crescendo G3 (7450) L2 400/1M accelerator, a TV/ FM Tuner card, an AV card (820-9745) and what seems to be a ATI IIc and/or ATI RV100 (both come up in System Profiler) card in the raised PCI slot.
     

    From looking at everymac.com and other sites it seems the video card might have come from a 6400.  Interested to know whether there are better PCI video cards that could go in this to max this out?

  14. On 4/14/2020 at 7:57 PM, Oberlehrer said:

    I had used this very monitor on that IIsi before, so I know that this combination works. It also seems as if there were a couple of different Portrait Displays: M0404, M1030 and M1031.

     

    The 4400 offers 640x870 resolution but the monitor won't sync to it.

    That site I linked earlier only quotes the below Macs as being compatible, though I also have an Apple Portrait Display hooked up to my IIsi (mine's a M1030, like yours?). While these are often just extracts from Spec sheets at a point in time (ie the IIsi came out in 1990, though the 475 was 1993!!), I wonder if the 4400 is not compatible and the hardware issue might be with your IIsi's video. Have you managed to get another monitor working on the IIsi?

              ¥ a Macintosh II, IIx or IIci CPU, also Performa 475
              ¥ optional a Macintosh II Portrait Display Video Card (M0119)
             To enhance gray scaling, the Macintosh II Video Card Expansion Kit (M0213) is available as an option

     

    If it's not the IIsi, does the Portrait Display video get better over time? I have a Radius Pivot display that starts as a 'dot' and then slowly widens out to become a full screen portrait display. I suspect some chip or capacitor needs to warm up first, but not done much more to isolate the issue.

     

    Certainly it seems the issue is most likely a hardware one - possibly with the IIsi if not the monitor (the 4400 seems to suggest monitor ok, assuming the 4400 can't get the output Hz right, hence the partial distortion).

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