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TC1 lcr-meter transistor-tester fix

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madires:
https://yadi.sk/d/yW8xa5NJgUo5z/LCR%20%D0%A2%D0%A1-1/Firmware/Original, but I don't know if it will run with the alternative U4 firmware. BTW, the "original" tester firmware is a modified k-firmware with more graphics and less functions. The only additional feature is the IR decoder supporting just one protocol (the m-firmware does about 15). It's a trade-off between fancy graphics and features.

ceut:

--- Quote from: madires on March 07, 2020, 02:26:52 pm ---https://yadi.sk/d/yW8xa5NJgUo5z/LCR%20%D0%A2%D0%A1-1/Firmware/Original, but I don't know if it will run with the alternative U4 firmware. BTW, the "original" tester firmware is a modified k-firmware with more graphics and less functions. The only additional feature is the IR decoder supporting just one protocol (the m-firmware does about 15). It's a trade-off between fancy graphics and features.

--- End quote ---

Hello,
Yes, I have tried this one, and in fact it's the original graphical firmware for the Atmel 324pa: it starts but freeze on boot logo with the alternative U4 firmware - I have not found the original U4 fw, it seems to be keep securely somewhere   ;D

For the m-firmware, it is good, but for me not very user-friendly  :-//
I have an old LCR T4 which I found better (I have put the latest fw from www.mikrocontroller.net).

Will wait for the new one and hope that it will work :-+ (so I will keep this one for spare part)

ceut:
Received the new one today, shipping was fast, despite of corona virus !

The new one works flawlessly.
A difference with the previous one: the battery was at about 60% and it has directly booted when I have pressed the button.

Will try to understand what U4 really tells to the Atmel for unlocking the boot of it.

The color screen is very readable, I like it.

cuistots:
hi i have a ts7h wich a problem, could you tell me for repair it.
lot of thanks

madires:
I'd suggest to check the power supply circuitry first.

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