Haier HL19D2 Service Manual page 24

5. Remote Control malfunction
OSD is unstable or can't work normally
Key board connected properly?
6. OSD is unstable or can't work normally
Yes
Buttons are ok?
Yes
Key board is ok?
Yes
Replace the main board
Remote Control malfunction
Check the remote control battery is
not properly placed or no power?
No
Use the other remote controls
No
Whether the IR board is
abnormal?
No
Replace the main board
No
Reconnect the key board
No
Replace the button function
No
Replace the key board
Yes
Replace the battery
Yes
Replace the remote control
Yes
Replace the IR board
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