In a message dated 12/05/2010 17:45:16 GMT Daylight Time, [email protected] writes:
The monitor is a recent model and has the regulator. I left it on overnight, in its original case and out in the open, hooked to a 13.5V supply. I had it on a ammeter the whole time, and it never draws more than 0.02A. The backlight is fine and the display works. -------------------------- Something doesn't seem right with that current consumption. Mine's not in use at the moment, as my test area is still stripped down, but when it was I measured a consistent 47mA once the regulator had a high enough supply to ensure it was regulating, in my case I was using 12 volts but the current is determined by the regulator output voltage so shouldn't vary much anyway. The display is what was fitted originally fitted to the iCruze module but the processor board has been changed so that Didier's Tbolt Monitor code can be used. The processor module circuit is pretty basic so I wouldn't have thought there was too much room for a design error. I'd be inclined to start by separating the processor board from the display and then reconnect using a temporary link of flexible wiring so as to be able to check if the processor circuitry is actually drawing current, then I'd probably continue by looking for quality issues, bad joints, solder bridges, etc. If that turned up nothing obvious then a more in depth examination of what the processor is doing would be my next step, in particular it would be interesting to know how it's handling the RS232 interfacing just in case it's a comms issue. Given that Didier's code is freely available, and the processor board schematic is easily traced, it shouldn't be too difficult as a last resort just to build a replacement. regards Nigel GMPZR _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
