First post, by Brickpad
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Long story short, a resistor on my S-305H display cooked its brains out and is now perma-damaged . I tried doing a repair by removing the borked resistor and bridging the two points with a piece of jumper wire, and instead adding a 22 Ohm resistor to the line going into the 5v input of the display. This sort of worked, however segment switching still didn't work properly when enabling / disabling turbo mode. My guess is that free-flowing current bridged some of the traces within the segmented display. Oh well...
At this point I've given up hope trying to repair the display; finding another S-305H is practically impossible, so what else is there to do? Well, I've decided to take another route and dissect the board, and sketch out the trace work front and back. My thinking is this: we all know finding these MHz displays are practically impossible to find, so why not build our own? Do you think there is enough interest in having a small initial batch of custom-made PCBs? The parts themselves aren't costly - a single resistor, 34 pairs + 1 single pin pin headers, and a 16-segment display (0-199), or 14-segment display (0-99).
I will be adding more scans / sketches to this post once I've completed them.
In the meantime I would be very interested in hearing your thoughts on this?