Haier HL19D2, Service Manual, Page: 24 / 84

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