Binary Dinosaurs Computer Museum
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STC Executel 3910, Dismantling
Taking a 3910 apart
NOTE! **Big disclaimery thing about lethal voltages being present. Make sure the unit is switched OFF at the mains before doing anything. Don't unplug it yet though, we need to discharge the CRT anode before doing so!**
Before you start, watch this video from Ian Primus showing how to deal with CRTs in general. Well worth some of your time.
These things weren't designed to be easily serviceable. The order for taking one apart is this: This is enough to allow full access to the component side for troubleshooting once the PSU is reconnected. You don't need a display attached because you'll know when it works as the tape drive will start up on a successful boot. If there's a tape in it, obviously. To fully remove the board:
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