Section 11 Inspection of Signal system
(I)If the neutral indicated lamp is out of work
1.Bulb and bulb socket
.Check if bulb and bulb socket circuit is cor-
rect
2.Neutral switch
Refer to “Inspection of switch”
3.Voltage
.Connect pocket multimeter (DC 20V)to the
terminal of bulb socket
Multimeter (+)
¡úbrown terminal¢Ú
Multimeter (+)¡úsky blue terminal¢Ù
.Adjust main switch to “ON”position.
.Check voltage (12V)
No failure on this circuit
Meet specification
Correct
Correct
No electrification
Replace bulb and/bulb socket
No electrification
Replace neutral switch
Out of specification
If there is failure on the circuit from main
switch to the bulb socket coupler, repair it.
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Lb
Br
Lb Lb
Br
Br
Br
Lb