Haier HLE20BB - Page 27

2.Display Trouble
2.1 Black
Black Screen
Check 5V for BLON on CN7
Tunn on or not
Turn on
Check Mcu
1,power supply
2,Reset
3,Crystal
Check the cirture for
Q4/MMBT3904
N
N
N
Y
Y
12V inverter input ?
Check the power supply
Check the inverter
or self-proofed
N Y
Check U25/SM5964 PIN43
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