T R O U B L E S H O O T I N - LG DX130 Service Manual

By checking operations during normal usage time, it is possible to carry out judgments on malfunction to a certain
extent. Carry out the following checks before disassembling the equipment.
Connect the power cord
POWER: Light
READY
Yes
POWER、READY: ON
Stand-by ready
Yes
No
POWER:
READY:
No
POWER:
READY:
No
Power On
Company Confidential
3. TROUBLE SHOOTING
: Light
3 Blinks
1 Blink
4 Blinks
1 Blink
Waiting
LG_______________________
1. Check cable of Power Supply Unit and thermostat Ass'y.
No
2. Check the connection of Power Supply (CON201 of Power board
to CN800 of Main board).
3. Check Power Supply Unit malfunction.
4. Check keypad connection.
Yes 1. Check Lamp Cover Ass'y is not attached.
2. Check Switch board connector (CN305) is open.
3. Check Thermostat is not attached.
4. Check Main board connector (CN600) is open.
Yes
1. Check Main board connector (CN306) disconnected.
2. Check Thermal sensor PWB Ass'y malfunction.
16
Rev. 09
Delta____________
2006/09/14