BenQ M2400HD Service Manual - Page 52
Keypad Board
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UPC - 840046015916
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24" LCD Color Monitor Keypad Board OSD is unstable or not working BenQ E2400HD Is Key Pad Board connecting normally? Y Is Button Switch normally? Y Is Key Pad Board normally? Y Check Main Board N Connect Key Pad Board N Replace Button Switch N Replace Key Pad Board 52
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24” LCD Color Monitor
BenQ E2400HD
52
Keypad Board
OSD is unstable or not working
Is Key Pad Board connecting normally?
Connect Key Pad Board
Is Button Switch normally?
Replace Button Switch
Y
N
N
Is Key Pad Board normally?
Replace Key Pad Board
Y
N
Y
Check Main Board