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HUAWEI ETS2000 series Wireless FWT Maintenance Menu
4. LCD display fault maintenance procedure
LCD display fault
Yes
Does LCD display words clearly after power-on?
Yes
LCD displays all words to be displayed
Yes
End
Figure 4-4
LCD display fault maintenance procedure
38
0Chapter4 Maintenance Procedures and S
olutions to Common Faults
No
No
Detect LCD power supply
voltage and adjust potential
resistance on LCD; adjust
the display brightness of
LCD
Replace LC D
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