Technical information
Manuals
Brands
Acer Manuals
Monitor
AL1721
31
32
33
34
35
36
37
38
39
40
39
KeyPad Board
OSD is unstable or
not working
Is KeyPad Board connecting
Connect KeyPad Board
Is Button Switch norm
ally ?
Replace Butto
n Switch
Y
N
N
Is KeyPad Board Normally ?
Replace KeyPad Board
Y
N
Y
Check Main Board
1
...
...
38
39
40
41
42
...
...
51
