Products > Test Equipment

T7 Tester

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madires:

--- Quote from: slybunda on January 13, 2024, 01:32:36 pm ---Where abouts is it on the board? Im gonna have to get a microscope my eyes are too old now  :'(

--- End quote ---

Should be U12, near the duo LED.

slybunda:
Thanks for that will try and get better photo of u12.
Not sure why id want to change the chip to an atmega328 just yet since its working fine and seems to be doing its job. Tested more new resistors today and all resdings are very accurate.
Very handy having this I should have bought it years ago

slybunda:
Got some details on U12. Its marked 17R which is possibly a 9017R, sot-23-6 , 6 pin constant current constant voltage charger.

madires:
So they changed the charger chip. There are so many different variants of the TC1 and family it's hard to track them all. BTW, normal resistance measurements shouldn't be impacted by the alternative MCUs as it's just a simple voltage divider setup.

coromonadalix:
since the firmwares codes are out

many take this and sell out many variants, some follow the "design"  and other not, cutting functionality over pricing etc ... and have other mcu variants

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