CHECK AND TEST 1
Unscrew cover of
mainboard with a
cross-head screwdriver.
Check if terminal is
inserted to final position
in PCB area.
Check if wire order for
LED is right or not in
PCB area.
Right picture shows the
correct condition.
Check if wire order
is correct, or if terminal
is filled with foam.
Use tweezers to pick
foam out and insert the
terminal into its position
again.
GENERAL PROCEDURES
FOR RECONNECTING
INTERNAL WIRES.
Peel off the sleeves.
Check to ensure proper
wire order and reconnect
them.
Tin soldering.
Cover connecting point
with electrical tape.
CHECK AND TEST 2
Press down the
mechanical switch,
check if LED light is off or
not.
DIAGNOSIS 2
PROCEDURE 1
Prize off the cover with
2mm slotted driver.
Unscrew with 6mm cross
-head screwdriver.
Pull down the lamp box.
Disconnect the terminal.
Loosen the clips and take
off the LED lamp.
CHECK AND TEST 3
Provide DC12V to LED on
the top to check if it is on
or not.
DIAGNOSIS 3
CHECK AND TEST 4
Set multimeter to
resistance gear.
Check wire connection
from PCB area to LED
area.
DIAGNOSIS 4