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No, no, no. Those are the very last things to play with. What Scott, I and others have been talking about is a rotation of the yoke itself, under the assumption that the raster has the correct geometry, and that the only problem is a rotation. Also, do NOT work on the yoke "hot." Only rotate...

From your original description, I am unsure as to the actual problem. Others have concluded that your raster is simply rotated. If that's the case, then rotating the yoke will certainly fix it. If the raster has other geometric problems, then you'll have to do extra work. In any case, assuming...

Actually, that site gives unnecessarily elaborate advice. The discharge tool he describes is utterly useless. The high voltage simply arcs across the resistor. Don't bother with a resistor; just use a grounded tool. That said, I'll repeat my "broken record" utterance: There is no need to...

The Plus should handle those ambient conditions ok. Perhaps you have poor connections that are particularly sensitive to changes in temperature. Common culprits would be RAM, as well as other socketed items (ROM, IWM, etc.). It may be worthwhile cleaning those contacts and trying again. For the...

Perhaps this has been mentioned before, but I didn't see it in a quick scan. You will find a wealth of information about upgrade possibilities at http://colourclassicfaq.com/ There is/was also a wonderful site by Stuart Bell. I now get a "404 Not Found" error, though. I hope that this is a...

That's great -- you're going to love that upgraded CC. You'll be able to watch Cinepak-encoded video at quite-respectable framerates. I used to have a 575 playing "Forbidden Planet" in an endless loop in my office. It never failed to start a conversation (usually beginning with something like "I...

Sorry -- I've been swamped, and will be until the middle of Feb. If I don't get back to you by then, please ping me again. Repeat as necessary. :) (And any preference as to system/finder version?)

Do not remove the band -- there's no non-destructive way to do it, and no real non-destructive way to reuse it, unfortunately.

Could you post a pic? Your description is a bit confusing. The yoke is not connected to the suction-cup thingumabob. Rather, it's the assembly that surrounds the neck of the crt (hence the term "yoke"). The HV feeds the crt through a recessed button in the bell of the crt, and the thick wire...

There is no need to perform the CRT discharge ritual if you are not going to remove the HV lead from the CRT. Yes, it's standard advice from the manufacturer, but following it makes sense only if you are going to separate the analog board from the CRT. Most CRT circuits have quite minimal...

Send me a PM -- if you're willing to meet me, say, in Sunnyvale or thereabouts, I could hand you some disks. Or, send me a self-addressed package and I'll fill it up with what you want.

Here are some additional notes: The focus and cutoff controls share a common supply. If the cutoff adjustment has no effect, that supply voltage is the problem. If the cutoff adjustment works, and given that you have verified that the focus control has no effect, the problem is either a bad 1M...

By chance a friend dropped by with a broken SE today, giving me an excuse to open one up. There is indeed a focus control. Have you tried adjusting it? If it has no effect, then follow trag's advice and check R26. The focus circuitry is very simple, so finding and fixing the problem should not...

What kind of CD did you try? Are you sure it's undamaged? Is it a burned CD, or a factory-pressed one? If the former, expect trouble in older drives. Is it an HFS disc? HFS+? ISO? The more information you can provide, the more likely someone can offer specific advice.

JDW is quite correct -- poor focus is not caused by a logic board problem (except, perhaps, indirectly by loading the power supply; that possibility is quickly checked by simply measuring voltages). Check the board that holds the CRT socket. Perhaps some connections there came loose during the...

That math isn't quite complete, and also contains some implicit assumptions. Here's my calculation for the Plus: The termination network for each line presents a 500-ohm resistance to ground from the 5-V supply (in round numbers). That's 50mW per resistor, when no I/O driver is sinking any...

You will have difficulty reading many discs if you are using system 6 (I recommend upgrading to 6.0.8 in any case). You will need to find the desktop manager init and place it in your system 6 folder. This will avoid your getting stuck in a loop in which the OS attempts to rebuild the desktop of...

Yes. Find yourself a slow SCSI CD drive (say, 2x or 4x, max), and it should work. If you encounter a driver problem, the "CD Sunrise" driver works well with many third-party drives. There's no audio CD support with that driver, but since you're just looking to transfer data, that shouldn't be a...

I'm fairly certain that "whoop-whoop-whoop" and "flup-flup-flup" or "whup-whup-whup" are all best efforts at describing the same thing: Power supply in self-protect mode. A current overload triggers it (an overvoltage will also indirectly trigger it), so anything that pulls too much current from...

The master clock is 15.x MHz, which is not the same as the horizontal line rate (kHz). The latter works out to something like 22.x kHz in the monochrome compacts. The ~50% higher line frequency makes interfacing to an NTSC device very difficult. The Plus does not use any frequency related to...