Acer K2 Lifecycle Extension Guide - Page 19
Button function, OSD function
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ACER-K242HYLH 19 6.2 Button function OSD is not working Yes Is control BD connecting? No Plug control BD then retry Yes Is button key normally? Yes Replace control BD then retry No Replace Control BD Is OSD working?? No Check Interface BD 6.3 OSD function OSD doesn't work Is control BD working? No Replace control BD Check interface BD
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OSD is not working
Yes
Is control BD connecting?
No
Plug control BD then retry
Yes
Is button key normally?
Replace control BD then retry
Yes
No
Replace Control BD
Is OSD working??
No
Check Interface BD
OSD doesn’t work
Is cont
N
rol BD working?
Replace control BD
o
Check interface BD
19
ACER-K242HYLH
6
.2
Button function
6
.3
OSD function