| Products > Test Equipment |
| TC1 lcr-meter transistor-tester fix |
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| Glide:
I remove U2 (10A45 on the chip) and now is stuck on "Testing...". It seams that I'm getting somewhere:)). Any other suggestions? |
| madires:
What happens when you check a resistor? |
| Glide:
Nothing, is not getting unstuck from this state. Only if I disconnect the battery is shutting the screen off, otherwise is staying like with that message on forever. |
| madires:
That points to a broken MCU. If your tester has a genuine ATmega you could replace it and flash one of the two OSHW firmwares. Possibly you need also to reflash the control MCU or replace it with a simple two-transistor circuit. |
| Nokeshas:
Hello, well i have tried lots of things... Last one - flashed with avrdude 3.3 original firmware, but i get just short light up of display and nothing else. |O verified lock and fuses all ok, eprom and firmware also verified ok, but still nothing on the screen just short splash of lcd backlight and thats it... :-// my tc1 has atmega328p so in config everything selected fine i think. fuses EXTENDED = 0xFF (valid) HIGH = 0xD7 (valid) LOW = 0xFF (valid) lock LOCKBIT = 0xC0 (valid) |
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