Keys Do Not Work - Philips BDP2600/12 Service Manual

Keys do not work

Keys do not work
Check if there is any
open-circuit
short-circuit
DuPont pin and PCB
Check if K1/K2 is normal
Check if every voltage on
the PSU and main board
is normal
Replace the main PCBA or PSU PCBA
Yes
or
on the
Yes
Yes
Yes
4-2
No
Fix the open-circuit or short-circuit
No
Fix K1/K2
No
Fix the PSU or main board
Trouble shooting chart