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  1. AndyO

    PowerBook 170 display housing disassembly help

    Can you simultaneously apply pressure to the front and back panels at that point (or right next to it) to effectively jam the broken standoff in place, while you then unscrew it?
  2. AndyO

    Andy’s PowerBook Problem

    I thought that too - the RAM overhead if nothing else. It does run quite well as it is though, which is surprising. Altogether a rather excellent PB 170 - I ran it for about 4 or 5 hours yesterday, and no tunnel vision problem. That is good to know! It may be a good target system for some...
  3. AndyO

    Andy’s PowerBook Problem

    I took the original 170 rather for granted, and ironically for me these days, never saw the point in it. I used it a few times on train commutes between Manchester and London, but the battery wasn't good enough so I tended to use a Cambridge Z88 instead. Far more useful for note taking and...
  4. AndyO

    Andy’s PowerBook Problem

    Yes, I was just thinking I may splash out on a ZuluSCSI... Might be useful to have a play with one anyway, since I can see me needing one or two for PowerBooks sooner or later. Speaking of which... Well, well. My first ever PowerBook was a 170, given to me when I joined the university's...
  5. AndyO

    Andy’s PowerBook Problem

    It is very tempting to give 6.0.8 a try and remind myself what it is like to use. I may use the Classic as my experimental system, but I'll need to get something more reliable to run it than the BlueSCSI I have in there at the moment. I'd try another SCSI2SD now I know how to get one working...
  6. AndyO

    Andy’s PowerBook Problem

    I do quite like the idea of regressing to 6.0.8 - though I can't say I remember it clearly from all that time ago when I ran it on my 512 and Plus. I do remember it being pretty quick. 7.1 is fine on the Classic II though, and compatible with just about all the software I want on the system. The...
  7. AndyO

    Andy’s PowerBook Problem

    Well, it did and it didn't. After no small amount of trying, I finally replaced the 7.5.3 system with 7.1, installed from the FloppyEMU. The result is faster boot time, but performance wise, not all that much difference. RAM used dropped from 2,150 in 7.5.3 to 1,280 in 7.1, so there's that.
  8. AndyO

    Andy’s PowerBook Problem

    It doesn't really run that well, no. But when I was setting up the SCSI2SD, I got rather suckered into all the talk about it being harder than a BlueSCSI, and somewhat tricky, so I used a pre-made image as a starter point. That had 7.5.3. I was also not sure I had a working 7.1 installer to...
  9. AndyO

    Andy’s PowerBook Problem

    2022 is coming to an end with the Duo 280c almost/nearly/not quite working and the final piece of my PowerBook jigsaw puzzle, a 170 in hopefully good working condition, on the way, but not due until Monday or so. A 170 was my first PB, handed to me in very early 92, if I recall, so I thought it...
  10. AndyO

    Andy’s PowerBook Problem

    Thanks all - I'm reasonably confident that a new PRAM battery and a (competent) recap will help this machine. I haven't disassembled it, so have no idea what else might be wrong, but it shows all the signs of being very well looked after, so it isn't likely to have problems derived from abusive...
  11. AndyO

    Andy’s PowerBook Problem

    The odd thing about this is that even when it plays dead, it is drawing power. I have it plugged into a power monitor and when it dropped into sleep it registered 4 watts after it had been at 30-32 while running. When it went dead, it still showed 4 watts. When it was dead at the start of this...
  12. AndyO

    Andy’s PowerBook Problem

    Well, damn. This morning, I tripped over the power cable for the 3400c and nearly dragged the PB off the coffee table. Serves me right for trying to maneuver around furniture before my mug of coffee. However, despite that, the 3400 is OK, and so is the PSU, which I then proceeded to plug into...
  13. AndyO

    Replacing RIFA X/Y MP capacitors with ceramic

    That's very helpful, thanks! I wonder if anyone has done a study of the degradation rates of these components in adverse climates.
  14. AndyO

    Replacing RIFA X/Y MP capacitors with ceramic

    I'm confused - mostly due to my own ignorance, but also that as far as I know, it isn't the material of the component that matters to the correct functioning of the circuit it is in, but the specification of the component. It would seem to me that if the ceramic components have different...
  15. AndyO

    Powerbook 180 sudden death

    This https://www.amazon.com/gp/product/B07WT32GNK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 is the one I bought. Two in fact, and both work perfectly with my 100-series PBs.
  16. AndyO

    Powerbook 180 sudden death

    Probably not at all helpful, but when I got it, my 180 powered up to a black screen with (usually) 5 horizontal lines across it, each a pixel tall. It then froze. When I attempted to reset it, I'd get the chimes of death. Occasionally, it would actually start up, but not usually. It booted...
  17. AndyO

    Andy’s PowerBook Problem

    I rather like the 165c. These blemishes are obviously not good, but the smaller color screen gives it a sharper display than the greyscale model. The color saturation is pretty good too, which is quite a surprise. I think I might be able to find a replacement panel - it's a Sharp LM64C06P (I...
  18. AndyO

    Andy’s PowerBook Problem

    My good fortune has come to an end. A recent PowerBook Duo 280c purchase from eBay arrived... and was DOA. No sign of life at all. Somewhat brittle plastics on the power supply and battery too, though the Duo itself appears in good condition, and was shown, and listed, as working. The PSU seems...
  19. AndyO

    Powerbook 180c psu replacement advice

    If I recall correctly, if the 180c attempts to draw more current than the PSU can provide, it causes the voltage to drop. I don't know how tolerant the 180c (or any of the 100-series PBs) might be to under-voltage, but I doubt that it's good over an extended time. There is also a possibility of...
  20. AndyO

    Andy’s PowerBook Problem

    That's ironic, because I do have a 5300 which is basically for parts, but it actually has a fairly poor keyboard too. Still, that's worth a try - and though not really related more than tenuously, the floppy drive does at least! Ah, I know. It's a disease, and I can't help it. That said, they...
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