But now, I have turned to the 'dark side'. I have bought an Apple Macintosh. An Apple Macintosh Classic II to be more precise. This particular model replaced the Mac SE/30 and was, rather bizarrely, less powerful than the SE/30, had no expansion slot, used a 16-bit data bus with a 32 bit CPU, could only address 10Mb of RAM and had only single channel sound. Who said Commodore had exclusive rights to ridiculous management decisions?
Anyway, this Mac was bought from a very nice chap in Worcester and it also came with two Apple Stylewriter printers (one still boxed!). The Mac itself suffers from the classic issue of vertical lines on the display. I am hoping that this will be down to leaky capacitors (sound familiar?) and will be a relatively straightforward fix. Worst case would be that the rechargeable battery has leaked over the motherboard (also sounds familiar).
The first nice surprise was to find out that the printers are basically re-badged Canon (BJC-200?) and you can still get ink cartridges too! Also, because of the Canon technology, when the ink is replaced, so is the print head, so even with the age of these things they should still work perfectly, if a bit slow by today's standards.
First, a few pics of the unit:
|In all his glory|
|That doesn't look like System 7 to me...|
|Danger! Danger! High voltage!|
|The business end of the high voltage|
|Hard disk with floppy drive underneath (still containing a floppy disk!)|
|The main board|
|Extra memory - cool|
A closer look at the main board shows that the capacitors in this are bad, with a capital "fetch me the PCB cleaner and a gallon of cotton buds..." as you can see below.
Even where there is no leakage, it's obvious from the corrosion on the capacitor's solder pads that something is very clearly wrong. They should be bright and shiny, even after 25 years but they are showing a lot of corrosion. I can try and clean the board but I suspect the caps have had it.
(Cue montage of me getting cotton buds - lots of them - and IPA and then spending over an hour cleaning, wiping, sweating, more cleaning etc)
Alas, I was correct. Cleaning the board made no difference. Virtually no difference. Those vertical lines that you can see in the first picture are actually quite bright but this only happened one time out of about seven. All the other times the lines were still there but the stripes were much dimmer. Now, after cleaning the board, the stripes are bright every time. Is that good? Maybe, maybe not.
New capacitors are on the way from RS Components and should be here Friday. Until then, he will just have to sit on my desk and look cool..