Products > Test Equipment

TC1 lcr-meter transistor-tester fix

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madires:
The m-firmware supports color coded probes/test pins and you can set whatever colors you like.

joseff701:
Hi, I tried a capacitor and after the tester did not turn on anymore, I removed the zener diodes DZ1 and DZ2, now it turns on but does not work, on 1 and 2 it says there are 1.46v. if anyone can help me understand what broke.

madires:
Toasted MCU IO pins, grilled by a charged cap. Can be fixed by replacing the MCU (and programming a firmware).

bob91343:
My TC-1 consistently is fooled by a capacitor I have.  This capacitor tests fine on my two bridges but when it comes to the TC-1 it doesn't know what to make of it.  It will say unknown or give a completely incorrect value.  Other capacitors from the same batch test fine.

distefanom:
Hi Madires!
After a looooong time, the micro finally arrived from china, on my workbench.
I can now program the uP with the kind free firmware available around here.
BUT, before doing it, I need now ask:
With the free firmware, do I need to replace the U4 with the two-transistor circuit?
When I program the IC, which fuse map do I need to use, so I could (theoretically) reprogram it ?
I mean that I could -after programming the uP- reprogram it as many times needed to test different FW releases?
I'm afraid that, with the wrong fuse map, after the first programing it will lock out itself, and I need to buy another uP.  :horse:
Please let me know
Thanks
Mario

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