May 312012
 

So, I got an Apple ///, and as reported earlier, it started up to the “RETRY” prompt successfully, but when I put any disks in the drive, it made a godawful racket. There was clearly something not quite right about the internal drive.

As it happens, though, I just recently acquired a second, external drive for the Apple ///. A fairly rare creature called the Disk ///.

Apple3 disk3

It took me a while not to just see this as ugly, but by now I kind of like it.

Though I can’t say that I’m not a little bit annoyed that the previous owner decided to doodle around the Apple logo on the drive with a ballpoint pen. I did try to clean it up, but it still looks like this.

Apple disk3 ballpoint

I completely disassembled the drive in order to clean it up, which I’ll detail here, although it turned out that it really was already pretty clean.

The case comes off pretty easily, four screws on the bottom…

Apple3 disk3 bottom

…and then one screw in the back…

Apple3 disk3 back

…and plastic shell comes off.

Apple3 disk3 case halves

Oh, by the way, I also got a 5MB ProFile drive, speaking of things the case parts are sitting on.

Oh, and, by the way, that ProFile drive powers on.

Profile ready light

However, in order to use it in the Apple ///, I need to have a controller card. I could use it straight away on the Lisa without any extra hardware, and maybe I will, though I expect that (since I got the Disk /// and the ProFile drive in the same place) the ProFile was being used on an Apple /// most recently, and so might actually still be bootable. So, I’m postponing my decision about that for the moment, and just stacking the ProFile up with the Apple /// as it was designed to be placed, not connected to anything.

Apple3 with profile

Anyway, back to the story. So, once the Disk /// case is off, there’s an aluminum shield over the drive that is held in by four more screws. I took it off before I took this picture, though it’s still connected to the ribbon cable and partially visible in the back.

Apple disk3 shield off

The analog board is held in by two screws and some plastic clips. Once the screws are removed, and the at least one of the three things plugged into the board are removed, then the analog board slides out toward the back until it is free from the clips.

Apple3 disk3 anbo off

Below the analog board, there is another metal shield over the drive head mechanism, which is just clipped on. Here’s the drive head below the shield, I’ve lifted up the pressure pad on top. It was—amazingly—clean, but I cleaned it with alcohol anyway, for good measure.

Apple3 disk3 head

Now, with the drive all clean, I had the other drive—the internal drive—to confront. Since the external drive looked so nice, I decided that the best course of action would be to swap them. To put the mechanism from the external drive into the machine as the internal drive and put the internal drive’s mechanism into the external case. At the very least, it would be easier to work with it if it needed repair.

It turns out that this is easy, but not simple. The internal and external drives have the same basic mechanism, but they have different front panels. The internal drive has a drive door that rests at an angle, flush with the body of the machine, while the external drive has a drive door that closes to vertical. So, I needed to also swap the front panels as well.

Here is the internal drive in place, before any of the work began.

Apple3 internal drive in place

To get it out, a couple of clips need to be removed, which hold in the aluminum shielding around the drive, and then two screws at the front need to be removed. Once it’s out, and the cable is removed from the analog board, you can see where the screws were that held it in, as well as a small metal widget in the back that kind of holds it in place.

Apple3 internal drive out

Here’s a better look at the drive itself when out, and the analog board removed. Note the quite different front panel.

Apple3 internal drive out 2

I performed pretty much the same procedure on this one, cleaning the internals and drive head off with alcohol, though this was much less clean inside than the external drive had been.

Then I addressed the replacement of the front panels. Apart from a little bit of trickery getting the plastic pieces associated with the drive door lined up in their grooves, this wasn’t too tough. The hardest part was dealing with the drive busy lights, which are anchored in the panels. After a bit of investigation and wiggling of pieces, I determined that they are held in by a two-piece black outer case that pretty much slides apart, held together by friction. When the back of the case is off, the LED and the front of the case are free to move. The front of the case clips on to the LED with very small plastic clips, but gently loosening the clips while pushing the LED out through the back with plastic pen cap was sufficient to get them apart. I don’t have a photo of the disassembled LED, but just imagine it. Like in a text adventure.

Apple3 disk3 led

In order to get the front panel off, I had to break the seal on the screws that held it on. I think I may have voided the warranty.

Apple3 sealed drive screws

After that, putting the internal front panels on the ex-external drive was pretty straightforward. No additional photos of that.

Then I turned my attention to the now-external drive, to put the external front panel on it. This was the drive that wasn’t working properly. As I was dealing with it, I noticed that the whatever-it-is-called belted to the drive motor (that actually spins the disk when it’s in the drive, and has the checkerboard calibration marks on it) was slipping out as I held the drive. That’s not something the other drive had done.

Apple3 disk3 underside

I discovered that, on this drive, the ex-internal one, the metal thing that grabs the disk hub from underneath was completely loose, barely connected at all, and came off as I was investigating it. I don’t have a photo of it when it was off, but it’s this thing, shown here in its rightful place in the ex-external drive.

Apple3 disk3 lower hub

That thing, though, seems to just be held on by friction. I was able to push it back on and it seemed pretty secure. So probably it had come loose during shipping, or some previous jostling the machine had been subjected to. It did explain fairly well the noisiness of the drive when spinning, though, if it wasn’t gripping properly to the drive motor. So, it was a pretty easy repair in the end.

Everything reassembled, I decided to give it a whirl. I made a couple of Apple /// disks using ADTpro on a //c that was nearby, including a demo disk and a diagnostic disk. I put in the demo disk, and, lo:

Apple3 sos boot

Though then I got this:

Apple3 sysfailure 0x06

Still not sure what’s up with that. I’ll worry about that later. [Later: It's a 6502 stack overflow error, which Apple says is a common result when booting a copy of certain copy-protected disks. And this was no original. So, I'm not too worried about this error, I'll just boot different disks. I'm also clearly not the only person having this issue, since Google Suggest had my target ("apple iii system failure $06") in view by the time I had finished typing "apple iii sy".] Undaunted, I put in the diagnostic disk, et voilà:

Apple3 diag

I ran a bunch of the tests, though it takes a bit of practice to know what it is expecting. The video diagnostics seem to be taking a particularly somber view of their duties on this occasion, knowing that if they failed, the whole world would sink into the abyss of a new dark age made more sinister, and perhaps more protracted, by the lights of perverted science.

Apple3 diag video

And as far as I can tell, there were no tests that it failed. There might have been a problem with one of the modes in the video test but most worked fine, the RAM and ROM and keyboard and sound passed, and the disk test I think came out ok as well. So, indeed, the diagnostics came though. Surely, if this Apple /// lasts for another 30 years, men will still say, this was their finest hour.

Churchill

A2S2-10087

 Uncategorized  3 Responses »
May 262012
 

There is a new “oldest Apple ][+ I have ever seen" (or at least, seen a label for). Prior to this, it was A2S2-11547. The new smallest serial number (on an Apple ][+, A2S2-) that I’ve seen is A2S2-10087:

A2s2 10087

Board date: second week of October 1979.

A2s2 7941

And: It’s in my office.

A2s2 7941 in office

A2s2 7941 in office top

May 222012
 

Today I got another label:

Apple iii label

It was attached to this:

Apple iii bubblewrapped

Yep.

Wedonttalkaboutiii

One more thing. Let us never forget the glorious victories of the past: World War I, World War II, ][+, //e, and //c.
—What about ///?
—We don’t talk about ///.

The Apple /// was not exactly a great success—there were various problems with it, some real, some legend, but it is generally considered a flop. One of the things that was known to be kind of a problem with them is that their chips sometimes came unseated (whether due to being loosely inserted initially or due to “walking” out as a result of heat cycling seems to be debated), but before I started trying to do anything with it, I wanted to be sure that the chips were seated. And I wanted to give it a full cleaning. Also, the seller indicated that the machine started up with just an error code. Since the seller also told me that (a) the code it presented did not indicate any RAM problems, and (b) the keyboard lamp did not come on, I was optimistic that all it really needed was a new keyboard lamp. The Apple /// has the kind of strange property that if the lamp under the “ON” light burns out, the machine won’t start. In discussions on IRC, this was hypothesized to be in order to make sure that people could tell the machine was on, so there were no attempts to add or remove peripheral cards while the machine was powered up. However, at least in mine there is in fact also an LED on the motherboard that lights up when the power is on, so that doesn’t seem to be a complete justification for this design decision. Nevertheless, the fact remains: if the light burns out, the machine is rendered inoperable.

Anticipating this, I ordered two replacement bulbs for the keyboard, which, as luck would have it, also arrived today. So, I disassembled the machine and cleaned it up, and replaced the bulb. The old bulb’s filament was clearly severed, so things were on the right track.

Apple iii replacement bulbs

Et voilà.

Apple iii bulb lit

Apple iii powered led

Best of all, no error codes on the screen. As it happens, I never got to see the error codes in the first place, because I didn’t want to power it up before I’d checked to be sure the chips were seated. But now, what I got was exactly what I should have gotten under the circumstances (with no disk inserted).

Apple iii retry

I did try putting in a disk, though I didn’t think it would work. I think the disk drive needs cleaning, it was pretty noisy. But I’m well on my way. Next stop will probably be to try to boot it with ADTpro, and then we’ll see where it goes from there.

May 182012
 

After going through a pile of label images that I’ve been collecting in the recent past, it seems like I can start to make some generalizations. They might be right. [Warning: a lot of these pictures have just been lifted from eBay auctions, most of them aren't mine.] [Warning 2: I may occasionally add more labels to this post as I see them.]

The oldest Apple ][ label I've seen (or at least have a picture of handy) is in this style, A2S1-4625:

A2S1-4625

That one enclosed a motherboard with date code 8040, which I have no reason to disbelieve based on the chip dates, which are all 1978-1980 that I could see. Which pretty much means that the motherboard was replaced along the way.

8040

Here are a couple more. A2S1-8576, A2S1-16122 (7903, sadly the ][ lid was replaced by a ][+ lid during an upgrade), A2S1-16784 (8068?, replaced, appears to be a ][+ board, rev 4), A2S1-27105 (7919), A2S1-39587 (but motherboard was replaced with a ][+ board):

8576

Label 16122 trim

Board date 7903

Label 16784 trim

Board date 8068 trim

27105

Board date 7919

39587

The next set of Apple ][ labels I've seen are the newer squarer ones, in red. Here the images I have jump to the 60000s, and perhaps there was a serial number "jump" somewhere here. But here are the red ones, A2S1-61786, A2S1-64313, A2S1-66077. I don't have board dates for any of those. And in any event, there's at least some cause for caution in trusting that the board that's in there is the one it shipped with. Note that A2S1-4625 had 8040 in it, while A2S1-27105 had 7919 in it. The 7919 board matches the timeline better, it's basically certain that the 8040 was a replacement. However, I've also seen 8022 and 8025 with all the hallmarks of an Apple ][ board (chip under slot 6, 16K select, flanged slots).

Label 61786

Label 64313

Label 66077

Moving on to Apple ][+, the serial numbers begin to start with A2S2, but the earliest ones are still in the earlier sticker style. The oldest one I've got an image of (update: now "second oldest one I've got an image of," see A2S2-10087) is A2S2-11547, board date 7945 (along with what I originally took to be an "x", but which I now believe to be a "plus", signifying that this motherboard was built as an Apple ][+ rather than as an Apple ][, since it could have been either at the point of assembly). This board also has what I called above having "all of the hallmarks of an Apple ][ board", which leads me to suspect that it was an Apple ][+ fashioned from an Apple ][ (by adding the Autostart ROM chip), though on the other hand I think all of these characteristics can be present on the earliest of the (actual) ][+ motherboards.

Label 11547

Board date 7945

Next comes A2S2-18606, same style. Board date hard to make out, but in the little bits I've blown up 4x, it appears to be 79xx. And same deal on this one, it looks like an Apple ][ board that was turned into a ][+ by adding the chip.

Label 16806

Open language card 79xx

Power supply top 79xx

Open language card 79xx 4x

Power supply top 79xx 4x

Then a big jump, new label style, lowest one I have encountered is A2S2-65001, board date 8006. But still the old hallmarks of an Apple ][ board.

Label 65001

Board date 8006

I have various examples of this label style, all of these others seem to have newer revision boards where I can tell, with "N" pattern under slot 6, non-flanged slots, no 16K select chips, RFI attachment screws. A2S2-66915, A2S2-93277, A2S2-109180, A2S2-115091, A2S2-120955 (board replaced, had an RFI shield, and dated 8519, also oddly enough had a ][-non-plus lid), A2S2-122481, A2S2-149143 (8102), A2S2-161227 (8110), A2S2-164919, A2S2-174147, A2S2-179992, A2S2-359691, A2S2-362495 (0182), A2S2-403239.

Label 66915

Label 93277

Label 109180 trim

Label 115091

Label 120955

Label 122481

Label 149143

Label 161227

Label 164919

Sticker 174147

Label 179992

Label 359691

Label 362495

Label 403239

The penultimate one there is interesting in that the motherboard inside it had a different date code style, listed as 0182, and stamped on rather than written on by hand (I don't have any evidence one way or another for the last one above). Somewhere between 161227 and 362495 this practice must have changed. All dates I've seen before this are in YRWK order (or at least YRxx for some xx, there is a single example I've seen (shown above among the Apple ][ labels, where the board has a date code that appears to be 8068, which is clearly not YRWK unless it is a sloppily written 8008, which it could possibly be). Perhaps it was simply just the practice in 1982 and beyond, since I have a couple of (poor) examples above of 81xx dates as well.

Board date 0182

Board date 8102

Board date 8110

Board date 813x

At this point, the labels switched style again, to the newer, busier one, with a dot matrix serial number. A2S2-448225, A2S2-472596 (3782), A2S2-512896, A2S2-544771, A2S2-546018 (4782), and the highest two serial numbers I have actually seen, A2S2-569185 and A2S2-588496 (on empty cases).

Label 448225

Label 472596

Label 512896

Label 544771 trim

Label 546018

Label 569185

Label 588496 trim

Here are my own newer two Apple ][+es as well, for comparison, A2S2-412783 (1782), and A2S2-542439 (4682).

Label 412783

Label 542439

One thing I observed here is that somewhere between 512896 and 542439, the model number changed (from A2S1048 to A2S1048A). There is no reason to think that this disrupted the serial number ordering, however, just as there is no reason to think that there was any serial number reset along the whole A2S2 line. In fact, looking back I think it might even be true that the serial numbers weren't reset even between A2S1 and A2S2—both A2S1s somewhere before 61786 and A2S2s somewhere before 65001 had the older style labels, then both switched. So, since we know any what that Apple ][ and Apple ][+ co-existed for a while, I expect that the serial numbers were still unique per machine, regardless of model.

Wikipedia reports that the Apple ][ was introduced in June, 1977 and discontinued at the beginning of 1981, an estimated 40,000 having been sold. It also reports that the Apple ][+ was introduced in June, 1979, and apple2history.org reports that it was discontinued in December 1982. I can't seem to find a source for the number of Apple ][+es sold. However, the estimate of A2S1s sold is quite a bit lower than the 66077 represented in the latest serial number I've found, suggesting that A2S2s were eating up some of the serial numbers.

Next up are the Bell & Howells. They took on A2S3 as a designation. These, unlike the A2S1s and A2S2s, seem to have their own serial number stream, and had model numbers like A2S10xxB. The earliest one I've found is A2S3-001522 (no backpack). The rest are A2S3-008426 (no backpack), A2S3-011082 (backpack), A2S3-016147 (no backpack), A2S3-021075 (no backpack), A2S3-022390 (5281, no backpack), A2S3-023165 (no backpack), A2S3-031522 (backpack), A2S3-033219 (backpack). The last two are also extremely high serial numbers for a Bell & Howell, usually the estimates are of about 20,000 sold, but it looks like maybe it was over 30,000. Also interesting, perhaps, is that the Bell & Howell label for the late-style label is slightly different, redesigned to fit the late-style Apple label underneath.

Label bh1522

Label bh8426

Label bh11082

Label bh16147

Label bh021075

Label bh022390

Label bh023165

Label 31522 trim

Label 033219 trim

That last three are kind of interesting in that they use the last style of Apple ][+ labels. Also, it appears to me that the ones the came with the backpack (sample size above: 3) had the Bell & Howell black and silver sticker stuck overtop the Apple sticker. Perhaps this makes sense, since the backpack is what allowed the thing to be UL listed and suitable for use in schools? Anyway, the sample size increases to 4 for this generalization when I add in my own (below), A2S3-011472 (backpack). I think by now I'm relatively confident of the correlation.

Label bh11472

Actually, having written this much, I remembered this post from 2007, which did a similar kind of forensics. For A2S1, he has never seen a black on white sticker above 40000, or a red on white sticker below 60000. My labels conform to this, perhaps there was an actual jump to 60000. I have also not seen a green on white (bigger, simpler) sticker on an A2S2 below 65001. Perhaps 60000 to 64999(?) were printed as A2S1 and 65000(?) on were printed as A2S2? It could be, although that means that that 65001 is a pretty special machine. I've beaten his record high on A2S2 (which was 544703), though: I've got a picture of 546018 (4782). I have a picture of two that are even higher, 569185 and 588496, both of which were on an empty cases. Which I'm now suspecting were never used in building a machine, production having shut down first. My terrarium motherboard is rev 4, I'm pretty sure, which doesn't match his specs (my terrarium board is 8050, he'd capped rev 4 at 8030).

All of this brings me back to my oldest ][+, the terrarium, however. Which is the real reason I got into this: What in the world is going on with this label? A2S2-1497165 (8050)?

Label 1497165

That sounds crazy. The sticker style and board date and the old-style board should have put this somewhere around 65000-149000. We know 65001 (8006) printed ok, and the next serial-board pairing I have is 149143 (8102), which is in the neighborhood of 1750 machines/week assuming no variation, so perhaps it should be around 142000 (as long as it is assumed that 66915, 93277, and 115091 had their motherboards replaced, since those were all RFI boards). So was this supposed to be A2S2-147165 and an extra "9" got in there?

Later note: The serial number on the box of the Apple ][+ listed at vintage-computer.com (1492548) is a similarly crazy one, so my machine might not be the only one. No picture of the actual label or the motherboard to allow me to compare it, though.

I don’t think there’s going to be any way to tell, without hearing a story from someone who saw this glitch happen, if that’s what it was.

May 112012
 

No further progress on the Lisa front (it’s turning out to be pretty hard to create a 400k floppy, but also I’m suspecting that the Lisa’s disk drive itself needs a bit of troubleshooting too). So, here’s the current spatial arrangement in my office.

Office early may 2012 a labeled

I think I will rotate the older Apple IIs left so that the platinum is more accessible and the Bell & Howell is on the edge leaving the backpack actually visible. The Monitor /// and stand fit better with a pre-platinum //e than they do with this ][+, and I might prefer to set that ][+ up with one of the //c monitors to leave the plexiglass cover a bit more open and visible. I’m pretty dubious that there’s going to be a place for the older //e upstairs, though, so maybe the Monitor /// will eventually move back downstairs, even though I like the look of it. Anyway.

Office early may 2012 b labeled

There are also a couple of iMac G3s and an Apple //c on the floor at the moment. I’m trying to spread the machines sensibly across this space and the lab space downstairs (though prioritizing the upstairs space for the more unique things), but I still have a great many machines to place. Something like six iMac G3s, three //cs, an Epson QX-10, and about six towers of varying types, three NuBus Macs (one pizza box, two beige boxes), and four Apple II-factor machines. Hmm.

I will need to start looking at KVM solutions for the Macs at least, maybe some of the Apples. I still have four composite monitors (one color, two amber, one green) left to distribute among the Apples, but that’s not nearly enough to serve them all if I get them all running. It’s also near-certain that, although I want to ensure that all of the machines are actually working, several that are duplicates with be mothballed on a shelf (or even possibly passed on), and I’m seriously considering gutting at least one of the G4 towers and turning it into an Apple //e, since I have something like three spare //e motherboards.

I do intend to try to give the various machines their own specialty, their own job to do, which will partly be accomplished by how the expansion cards are distributed. It’s funny/strange how much of this phase of the project has been involved in just cleaning up and troubleshooting the machines to make them bootable, with almost no time devoted to actually making use of them. That phase is coming, though. I don’t have much left on my list of things I’d want to acquire, so for the most part once the machines that I already have work, I can turn my attention to software and usage. Oh, and finishing up the imaging of my floppies, which, after all, is how all of this lunacy got started in the first place.

By the way, in case you were worried that I haven’t left any actual work space on my desk, there is a third arm, which is to be left clear (for my laptop and paper work, and so I can actually see students that I’m meeting with).

Office early may 2012 c

My goal is for this in the end to not look ridiculous. I’m only partially optimistic.

Diagnosis: 1E1

 Uncategorized  No Responses »
May 102012
 

Since the keyboard I had was missing some keys and was acting very non-keyboard-like, I procured a replacement on eBay, which happened to come up at an opportune moment and not cost very much. It was untested, apparently the seller still had the keyboard but no longer had a computer to test it on. But it looked nice, both in the auction, and once it arrived. And, moreover, it seems to mostly work.

Lisa new keyboard

It was certainly able to take me into service mode, which was what I was hoping for, so that I could look at where the RAM problem was. I tried all the alphabetic keys and they all seem to work, with the exception of “A” and “J”. I’m going to probably need to address this keyboard by replacing the foam backings on the keys, but now I at least have two keyboards to work with, in case spare parts are needed.

Lisa new keyboard qwertyuiop

Having taken the Lisa into service mode, I was able to see what chip it thinks is bad, thanks to this extremely helpful post on LisaList by James MacPhail.

Lisa service ram flags shown

According to the diagnostics, the chip on memory card 1, row E, column 1, is faulty.

Lisa ram 1e1

Looks fine to me, but, nevertheless, I downgraded the Lisa from being a 1MB machine to being a 512KB machine. I have no way to fix that RAM chip right now, but I do have a way of taking it out of the machine.

And: success! Sort of. No errors, this time. Just no boot disk. I tried again putting the Mac 512K boot disk in, but again the drive whirred a bit and then just spat it out.

Lisa still no disk

So, the next thing I’ll try is using my Duo 2300c and accompanying 3.5″ drive to see if I can make a disk the Lisa can boot from. I set up the machines, but the trial itself will need to wait for another time.

Lisa 2300c

May 092012
 

More impulsive than I should have been I suspect, but assuming this works out properly, this leaves me with just one major thing left to collect. I give you what is probably the penultimate mysterious square: Nope, not this time. Turned out that the seller posted it by accident, with the wrong pictures. So, still two to go.

Mystery square

May 052012
 

I finally decided to open up and deal with the problem I’ve been having with the Bell & Howell power supply. Let’s recap where we are so far.

I tested the power supply in the machine by plugging it in directly. It works fine. I tested the backpack’s auxiliary outlets. They work fine. That means the fuse works fine, and the power cord works fine. I verified that the green, black, and white wires are connected to the right pins in the power supply. I verified that the power supply itself was switched on. And yet, when I switched on the computer switch on the backpack, nothing happens. So, I have isolated the problem to the backpack, and moreover to the computer power (not the auxiliary power) of the backpack.

Ok, backpack. I unscrewed the back panel, to see what I could see inside.

Bhiiplus backpack unscrewed

And this is what I saw inside. A bunch of wires, very simple connections, pretty much everything looks connected.

Bhiiplus inside backpack

Tracing the connections, the interesting stuff is all on the hot (black) wire. It comes in to the fuse, and then splits off into two, going separately to the “micro” switch and to the “outlets” switch. From the “outlets” switch, it goes to the hot side of the outlets, which are all tied together. From the “micro” switch, it goes into a weird box and then out the back to the computer power supply.

The fuse had been out, but I put it back in, and then, armed with my alligator clips, I checked the connections at various points. Everything was as expected except when I clipped it to the other side of the weird box. Power seemed to go into the weird box but not come out.

Bhiiplus weird box

The weird box has a switch on it (indicated by the green arrow). Clearly a very inaccessible switch. I tried pushing the switch. I heard a little blip from the power supply, but no other real effect. It doesn’t slide, it pushes in. It clicks, but yet it doesn’t seem to have two states. It’s in or it’s not in, but it doesn’t click on and click off like, say, a caps lock key. Also, it’s at kind of a weird angle, but yet it is screwed into the case.

I extracted the weird box. Here’s the underside. Not particularly revealing.

Bhiiplus weird box out

But I made a discovery. When the switch is out, no power makes it through.

Bhiiplus switch out

When the switch is in, the power goes through and the computer comes on.

Bhiiplus switch in

What a weird box. Why would…?

YGTBFKM.

Bhiiplus lid screw

From oldcomputers.net’s page on the Bell & Howell model:

Bhiiplus oldcomputers net

There you have it. If I’d have just screwed the case lock screw back in, everything would have been fine. I am a diagnostic genius.

In case you were wondering, the case lock screw is partially pictured below (sitting next to an unrelated screw that kind of looks attached, but isn’t). When this is screwed all the way in, the body is fat enough to push the switch in, which, if you review the previous photo, is mounted right next to the hole through which the case lock screw goes.

Bhiiplus lid screw close

So, I added a disk drive card, a 16k RAM card, three new rubber feet, and game paddles, and now it’s all ready to go upstairs. Pretty much like it was all along. Sigh.

Bhiiplus ready to go

May 042012
 

Quite a while back, I seemed to be a bit of a //c magnet. By now, I’ve got three //cs and a //c+. It seemed to me that in order to complete the //c experience, I should get one of the little 9″ monitors designed for the //c (model G090H). I found one on eBay, represented by the two photos from the auction below:

Iicm pre front

Iicm pre back

Didn’t cost much, I bought it, it arrived. Here’s the box it arrived in:

Iicm1 packing

And here’s the shape it arrived in, given that the person who shipped it seemed to think that shopping bags would protect the heavy monitor and very heavy stand. To be fair, I knew before opening the box that it was not going to end well, given all of the rattling around I could hear.

Iicm1 topfront2

Iicm1 backright

For a brief little while, I discussed collecting the insurance (which had been taken out) with the seller, but first of all, getting the insurance payment is a big hassle (and it has to be initiated by the seller), and as far as I can tell the best I was going to get was something like $20 anyway. So, that was abandoned (particularly because the seller stopped responding to email, but I was just as happy to give up on it). I didn’t plug this monitor in, though, because I really didn’t know how bad the damage was and I wanted to look inside first and shake out all the loose bits. It stayed in its box for probably two months.

Meanwhile, I got another one. This one was much less yellow, although it too had a little crack. I’m starting to think that these things are really quite fragile. But overall, it looked nice.

Iicm2 topfront

However, when I plugged it in to try it, the picture was very, very dim. Very dim. Unusably dim. As far as I can tell, this is not really solvable except by replacing the tube. Great. So, now I had one busted up monitor that may or may not work at all, and one nice one that didn’t really work adequately. I do actually have a third one on its way to me now, but I nevertheless decided today to deal with what I already had. The plan was to figure out how bad the damage is to the first one, and then to switch the cases, since at least if the first one worked at all, it couldn’t be worse.

So, I pulled them apart, shook out all the loose plastic bits from the broken one, and tested them out.

Iicms open

Happily, the one with the broken case worked just fine (pictured above). Nice and bright. So, I went ahead and cleaned up the unbroken case and put the guts from the broken one into it. I didn’t take a picture, but it looks just fine, and a little bit cleaner. Nice and white still too.

I tested the other one as well, and, surprisingly, it didn’t seem dim anymore. I’m starting to suspect that I gave up on it too soon, that in fact it was ok, I was just fiddling with the knobs in the back and neglecting the knob on the side. But, whatever, it was interesting opening them up, and I got to clean out the inside of the case as well in the process. So, then I turned my attention to piecing the smashed up case back together. I didn’t have all of the pieces, or at least I didn’t know where they all were, but it appears that I had all of the major ones. With a bit of superglue, I managed to get it all back in basically working order. It’s not perfect, but it’s not bad. Interestingly, the superglue seems to immediately remove the yellow coloring, so at the cracks I do have little areas of white plastic now. Maybe I’ll do a full retr0brite treatment at some point.

Iicm1 backpanel glued

Iicm1 top behind glued

Iicm1 top panel glued

Iicm1 bottom left inner mount glued

Iicm1 bottom right inner mount glued

Once reassembled, it looks relatively presentable. If you look closely, you can see the cracks, but it’s workable. Also, this was the CRT that I thought was dim. At least now, it’s not.

Iicm1 glued reassembled

So, good. I’ll soon have three of these little monitors, and at least the two that I already have work fine and have been cleaned up and made presentable. I still, all told, have fewer monitors than computers, but I don’t think I need all of the //cs to be out and functioning. These monitors are little and they’re monochrome, but their size and the convenience of the stands make it probably worth having all three.