Technical information

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3. Inverter Board
No backlight





Check L805 =12
V
Check ON/OFF signal
Check IC801 PIN5=5V+ -0.25V
Check adapter board
Check main board
OK
OK
NG
NG
Check Q802,Q804,ZD803 circuit
NG
OK
Check IC801 PIN18 triangular wave is normal
Check R821,C821
Check IC801 PIN11, 12,19,20
End no output debug
Check feedback
NG
OK
NG
OK
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