SImmons SDS6 schematic needed.
Dear Simmons group members
My currently US voltage SDS6 stopped working when I stupidly tightened up the 'lid' screws, one of which snagged a ribbon cable. I recently replaced the backup batteries as one had come unsoldered and they could have been the cause of the non functioning. However, no change since replacement. The display LEDs briefly flash on as I switch on but then nothing i.e. no correctly illuminated LEDs. The fuse 500mA (but should be a 1A according to the manual with 120v) did not blow and I am awaiting replacement ribbon cables although the one I have temporarily repaired tests fine for continuity across all contacts. Really need a circuit diagram to test some voltages and to make sense of the different ICs and transistors. And no I don't want to sell before anyone asks! Advice / UK techs versed in Simmons SDS6 suggestions etc most welcome.