Appendix - LG LSE3090ST Service Manual

How to check Key operation
1. Keys should be accessed according to priority and check the buzzer operation when key is accessed
2. If change the key access order, the buzzer make another beep
3. The buzzer has no operation when key accessed, , it would be defected.
How to stop - Key Test mode
- Press 1st 2nd ...
- Press 'CLEAR'

APPENDIX

Key operation T
Key operation T
<Fig.1>
26th (CLEAR)
est
est
10-1