If your KA630 seems to work OK but the console bulkhead LED display is dark, the issue is probably only a burnt-out fuse. A result of a short circuit, probably somewhere on the bulkhead, that may have happened a long, long time ago.
Instead of de-soldering and pulling out the old fuse, thus risking mechanical upset to the delicate PCB traces, here is a less intrusive procedure which uses a small SMD fuse. Do not simply short the burnt-out fuse using a wire, fuses are always there for a reason. Continue reading “KA630 Console Bulkhead Dead LED Output Fuse Fix”
I managed to put my hands on a “Dec ChannelServer II” BA213 box, with a dead H7868-B power supply.
The ChannelServer was based on a KA655 CPU board, and had various other bits and pieces that I removed.
Continue reading “BA213 Power Supply Upgrade”
After several years of just sitting on the shelf, the “LEFT” key on one of my LK402-AA keyboards went dead. Completely dead – no matter how hard you hit it, it just wouldn’t work.
So here is a guide on how to fix a dead key in a LK402-AA (and perhaps other LK4xx keyboards?)
Continue reading “LK402-AA Keyboard Fix”
In case you have a DECSERVER 200 with old squeaky fans, and at the same time you’re wondering what to do with old CPU fans hanging off your pile of computer junk, consider this. Continue reading “DECSERVER 200 Fan Replacement”
How to Replace a VT320 CRT With a Non-Original CRT
A Procedure in 10 Steps, for the Technically Capable
Continue reading “VT320 CRT Replacement”