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7-69
Only floating charge lamp is on after indicating "A.O", It's not charged.
Η
Η
220/380V Model : Measure the
voltage between input voltage
change over tabs 2-4 2-6 4-6
220,380,410,440V Model :
Measure the voltage in front of
AC INPUT MS S/W
Â
Â
In front of MS
TB.6
M/S
COIL
FAN
Manual
/Auto S/W
PCB RY
(LP lamp)
TB.8(220V)
TB.4 (380V)
70
̫
/
30W
M/S
B
T.B
short
bar
7
8
Voltage
tap
J2
TH
Manual/Auto TAP Changer
After separating
battery connecter,
convert the
automatic/manual
selection switch on
the lower part of
PCB to manual.
AC
INPUT
MS
switch
ON
PCB
LP
lamp
ON?
Check
the rated
voltage
YES
YES
NO
Input power source is not
provided.
Check external lead cable.
Check the connection of
external input connecter
Check external NFB TRIP
Â
Â
Â
Apply multi tester for input voltage change
over tab no. 6
Measure voltage between input tab no.8,
PCB CN4, and contact points with red reed
putting black reed on the other side
Apply multi tester for input voltage change
over tab no. 6
Voltage
220V?
NO
YES
MS COIL fault
TH contact fault
CN4 contact fault
PCB RELAY fault
TH manual
restoration release
NO
NO
Change PCB
CN4 contact fault
PCB RY contact fault
CN4
RY
M/S electrical circuit
YES
Troubleshooting
(2)