Trouble Shooting - LG DP-3510 YYDA Service Manual

Delta Elec. Inc.
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
Yes
POWER: Light
READY
Standy-by-ready
Yes
Yes
Press "power key"
POWER: Light
READY
Power ON
No
POWER:
No
Over Temp LED:
ON
No
POWER:
Yes
Waiting
Power On
Company Confidential
18
DP-3510 YYDA & DP-2510 YYDA
3. TROUBLE SHOOTING v1.1
No
: Light
: OFF
Yes
7 Blinks
Yes
Yes
9 Blinks
LGE_______________________
• Cable of Power Supply Unit and thermostat Ass'y.
• Check the connection of Power Supply (CON900 to CN2)
• Power Supply Unit malfunction
• Check keypad connection
No
•Lamp Cover A'ssy is not attached
•Switch (CN343) is open
•Thermostat is not attached.
No
•Connector (CN342) disconnected.
•Thermal sensor PWB Ass'y check.
No
•DMD chip error.
•DMD Board PWB Ass'y check.
rev.00
No
Delta____________
2007/11/30