Following Steve Wiseman's generous offer I now have some SMD diodes and h
ave modified my dismantled monitor.
I haven't got a T'bolt running at the moment but the modified monitor boots
up ok and then flashes "No Message" as I would expect.
After adding all three series diodes I measured 5.04 volts out of the
regulator and 3.18 volts at pin 6 of the CPU, all nicely within spec.
Supply current at 47mA was the same as I'd measured before modification.
One tip for anybody taking these apart.....
the jointing pins are quite a close fit in the CPU board but on the display
board there's more clearance and the through hole plating looks to be more
robust, so probably less risky to unsolder that end first and then remove
the pins individually from the CPU board.
regards
Nigel
GM8PZR
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