That is 2 of the types I mentioned. The Thevenin type are usually used as buss terminators. They typically have an impedance of around 120 ohms. That...
Remove C13. I'm sure you'll see a small hole in the case. I can almost assure you it is C13.
The R-pack was broken mechanically. It is possible that...
Consuming an entire track worth of memory for a track buffer in a CP/M memory seems like a lot of work when simply interleaving the floppy disk would...
There are reason to use or not use ceramic caps in particular applications. My point of the failure was in normal usage. 4Kv on a 50V cap is a little...
Ceramic capacitors are not likely to have failed and rarely need to be replaced. In my 48 years of repairing electronic equipment I've only seen one...
The doubling of lines of text is an addressing problem. One of the addresses to the RAM is stuck. There also looks to be some character problems, RAM...
I don't see a picture with the cable. One of your post has an invalid pointer to a picture attachments. The diodes on this line may be related to the...
Hold the board up to a strong light. You can usually see the connections. The deeper connections will be fuzzier. The connections are usually with 2...
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