I have a Beko B7S_G10_B06_T02 control board that was damaged after the door-lock triac burned out and damaged the ATmega64A MCU.
I bought a replacement ATmega64A from AliExpress and replaced the damaged MCU. I flashed it with the Beko B7S_G10_B06_H2 firmware. However, the control board still does not power up properly.
The 5 V supply is OK, and I have replaced the damaged components. I also flashed both the MCU and the EEPROM, and I checked/programmed the fuse bits.
Unfortunately, the board still does not start, and I don't know what could be wrong.
Could someone please help me troubleshoot this board? I would especially appreciate advice on the correct ATmega64A firmware, fuse-bit settings, EEPROM contents, and what signals or voltages I should check to determine whether the MCU is running.
Добавлено (24.08.2026, 13:21:24) --------------------------------------------- i changed HEF4069 with 74hc04 and also near be A7W diode the 8MHZ crystal pin voltage is 0.4v and 0.7v and when i enable CkOPT it go up to 2.5v but still not working can some one help please
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