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Type: Posts; User: andy

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  1. Replies
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    136

    I like it for cleaning things like dirty switches...

    I like it for cleaning things like dirty switches and noisy controls, but not for more sensitive things like IC sockets and computer edge connectors. For those, I prefer something that doesn't leave...
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    229

    The brightness should be adjusted so that black...

    The brightness should be adjusted so that black is just barely black. A DOS text, or POST screen is a good reference for that. After that, don't touch the brightness again. Often there is a detent...
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    458

    There are a some bad SMD caps on a small board in...

    There are a some bad SMD caps on a small board in the 8514 which causes smearing. There wasn't much corrosion, so it was easy to repair.
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    405

    Here's an improved EDID with 1024*768 interlaced...

    Here's an improved EDID with 1024*768 interlaced added as the preferred timing. Previously, I left that blank, but some systems had problems. A Windows 10 system I tried would consistently blue...
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    405

    The bad caps are three 33uf 10v surface mount...

    The bad caps are three 33uf 10v surface mount electrolytics on the video amplifier board. Fortunately, they didn't leak too badly, so there was no damage to the board. After replacing them, there...
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    Using an IBM 8514 monitor on a modern system

    I bought an IBM 8514 monitor last week. It's in good condition, but desperately needs some new capacitors. Having no luck getting any of my modern systems to output 1024x768 87 Hz interlaced, I...
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    967

    Too bad I missed that! I probably would have...

    Too bad I missed that! I probably would have bought it to go with my PCG.
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    2,609

    Nearly every IBM floppy 3.5" drive I've seen...

    Nearly every IBM floppy 3.5" drive I've seen recently has had a number of leaking capacitors inside. Replacing the caps and cleaning the boards usually fixes them.
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    The flyback was mentioned, but no one has...

    The flyback was mentioned, but no one has suggested the HV multiplier. The is monitor is very unusual to have a separate flyback and HV multiplier. They're usually integrated into one unit.
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    7,056

    My 5154 had a bad HV multiplier which was causing...

    My 5154 had a bad HV multiplier which was causing erratic HV regulation. The result was that the brightness and focus varied (the image would dim, expand, and defocus simultaneously). I'm not sure...
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    314

    I managed to figure it out with a little ohm...

    I managed to figure it out with a little ohm meter probing. I'll post the full pinout soon. I'm still waiting for a connector to arrive, so for now I have wires soldered to the PCB.

    It clearly...
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    314

    It looks like the service manual is IBM part...

    It looks like the service manual is IBM part number 68G2484. Any idea where I might be able to find it?
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    314

    IBM 9507 LCD monitor input

    I picked up this IBM 9507 LCD monitor recently. It's in good condition, but missing the stand, cable, and power supply.

    It has a single connector for power and video. Does anyone know the...
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    2,251

    I finally got it to pass testFDC once using an...

    I finally got it to pass testFDC once using an AHA-1542CF, but subsequent tests fail with the error "NoAdrMark".

    Still no luck on making a working disk. Copycat just sits on track 00 reporting...
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    2,251

    SU+ says one of the disks I'm trying to make...

    SU+ says one of the disks I'm trying to make (Zaxxon) is SD. Also, it failes the SD test on TestFDC.

    I've been trying to pretty old floppy controllers in a Pentium board (including all the way...
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    2,251

    Making TRS-80 model III floppies

    I'm looking for the best way to turn disk images into physical floppies for my model III. So far, I have been able to make TRS DOS and LDOS boot disks using an emulator on a DOS PC with a 360k...
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    3,715

    I recently picked up a version 1 IBM 3852. This...

    I recently picked up a version 1 IBM 3852. This one has a main board that looks like the one from the Canon PJ-1080a except that it's missing the DIP switches and the nearby components.

    I tried...
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    3,715

    Have you tired the Epson JX-80 driver? I read an...

    Have you tired the Epson JX-80 driver? I read an old review of the Canon that said it could emulate the JX-80.
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    Here's the self test page.

    Here's the self test page.
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    3,715

    Here are images of both ROMs, and the driver I...

    Here are images of both ROMs, and the driver I found. Note that all I got with the driver was IBM3852.DRV and 3852.DOC. I added it to the Windows 3.1 .INF files so I could install it in Windows 98....
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    3,715

    Interesting, the main board of the IBM 3852 is...

    Interesting, the main board of the IBM 3852 is substantially different. I guess the difference is more than just the ROM.
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    I'll extract the ROM and post it along with the...

    I'll extract the ROM and post it along with the driver. I wouldn't mind a copy of the Canon ROM in case I have a need for it.
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    I've collected quite a few vintage printers over...

    I've collected quite a few vintage printers over the last few years. I'm mostly interested in color printers. Making the printers work is easy compared to finding drivers. Models include:
    ...
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    I have the IBM 3852 version of this printer. ...

    I have the IBM 3852 version of this printer. There is a Windows 3.0 driver that I can confirm works mostly in Windows 9X (I haven't tried in in 3.X yet). I don't know if it's compatible with the...
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    Unknown Morrow Designs portable ID

    This is for sale at a resale shop. Does anyone know what it is? I haven't been able to find anything like it on the web. It's about the size of an IBM portable PC, but it has an unusual wide...
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