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  1. O

    Apple "mistake? video 512 x 342 vs. 512 x 384

    1024x768 is a standard resolution; 512x384 is exactly half of that...
  2. O

    Mac LC and DB15 to VGA adapter problem...

    I think the 191 is very similar to the 190. NEC had always good compatibility. So I guess it SHOULD work if the computer outputs a correct signal and the adapter is working.
  3. O

    Mac LC and DB15 to VGA adapter problem...

    I'm using a switchable third-party adapter.
  4. O

    Mac LC and DB15 to VGA adapter problem...

    The NEC I mentioned is a TFT, though. https://www.ebay.pl/itm/NEC-MultiSync-EA190M-19-1280-x-1024-250-cd-m-5ms-VGA-DVI-Weis-Silber/302801275915 Sure, that's twice as much as I paid for mine. Still not too bad.
  5. O

    Mac LC and DB15 to VGA adapter problem...

    I bought an old NEC EA190M a couple of weeks ago that also plays nicely with the IIsi. Those monitors probably cost close to nothing everywhere; I paid 15 € for mine.
  6. O

    Mac LC and DB15 to VGA adapter problem...

    Both the IIsi and the LC475 output at 66.7 Hz; and here that particular monitor works with the LC475 at 640x480 (and a PM8100 and a PM4400) but not with the IIsi. My guess is a different sync type.
  7. O

    Mac LC and DB15 to VGA adapter problem...

    I don't know if this is a question of adjusting or of monitor features. Sometimes certain older monitors work better with older computers than newer ones. I have an old Panasonic LCD monitor for such cases.
  8. O

    Mac LC and DB15 to VGA adapter problem...

    The Macs of that particular vintage are rather finicky as far as monitors go. I have a 19" monitor that works well with an adapter on my LC475 but not on my IIsi. Other monitors (even 19" ones) play nicely with the IIsi. The original LC and the IIsi came out at about the same time. Just a thought.
  9. O

    Performa 475 power problems

    ...and as soon as my desoldering pump made contact with the power supply board I knew how wrong I had been about the caps probably not having leaked. A familiar smell permeated the air... Anyway, after recapping the power supply I got a chime; and with the "jumpstart" method I also got video...
  10. O

    Performa 475 power problems

    The Performa came without a PRAM battery. I was under the impression that without the battery it would chime but not produce any video; and that the "jumpstart" method would work for the missing PRAM battery (but not failing caps). I'm mostly irritated by the voltage breakdown; it's obvious...
  11. O

    Performa 475 power problems

    So I got myself a cosmetically very nice Performa 475 without a hard drive and without VRAM. It doesn't really turn on and I'd like to find out if this is a power supply problem or a faulty logic board. When switching on the machine it clicks/pops continually from the speaker; the LEDs in the...
  12. O

    SE/30 recapping: sound chip question

    My point was: Is there a (known) reason why both audio channels use different values and types (1u electrolytic vs. 0.1u ceramic)? Just being curious here.
  13. O

    SE/30 recapping: sound chip question

    Any takes on this? I'm about to order caps this week; I'll probably stick to electrolytics. The lifespan of modern electrolytics is hopefully a bit longer so there's a chance I won't have to do it again in my lifetime. Removing the old caps worked quite well; not a single pad lifted. I tried...
  14. O

    Macintosh Portrait Display M1031

    That's a good question... I'll ring it out with a multimeter the next days. I also found this in the meantime:
  15. O

    Macintosh Portrait Display M1031

    Thank you for your comments and research. I've found the "Card compatibility an Video Output Tables" Apple Service Source; it lists the IIsi with 16 grays for the M0404 (which I assume is the same as mine): It also lists all Power Macs up to the 9500 as compatible. My guess is that this...
  16. O

    mounting SE/30 drives on a different computer

    Update (but not solution to the original problem): The IIsi boots flawlessly off the 6.0.7 SE/30 drive (and is extremely fast...). When trying to boot off the other SE/30 drive I'm getting a "Happy Mac" for about one or two seconds and then the floppy drive icon with the question mark. My...
  17. O

    mounting SE/30 drives on a different computer

    I assume there is no ID conflict. The drives are both on ID 0 (naturally I'm trying one at a time). The 8100 has two separate SCSI busses; I'm having the boot drive on one bus and the SE/30 drive on the other. SCSIProbe sees them fine as the only device on the bus (except the computer on ID 7 ...
  18. O

    mounting SE/30 drives on a different computer

    The problem looks to me as follows: I'm trying to archive two hard drives coming from two SE/30. What I'm attempting to do is to connect them to the SCSI bus on my 8100, mount them and read the contents. So far this does not work. SCSIProbe sees the device (and is able to flash the LED on one...
  19. O

    Video: Recapping the SONY CR-44 Power Supply (for SE & SE/30)

    I have watched so far just the first 3 minutes. Is it accepted/veryfied knowledge that the Sony has a black switch and power connector and the Astec a white one? I'm asking because I'm having two SE/30's with Sonys and one has black components and the other one whites...
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