-3-
(1) Trouble mode (A)
1. Troubleshooting based on pilot lamp indication
Problem
Typical cause
Check procedure
Pilot lamp fails to go on or flash.
(1) Faulty AC cord
(2) Blown fuse (3.15 A) on primary side
(3) Faulty PCB
See trouble mode (A).
Pilot lamp indicates abnormality by
flashing rapidly at 0.1 second
intervals.
(1) Poor connection of terminal
(2) Faulty battery (open circuit)
(3) Faulty PCB
See trouble mode (B).
Pilot lamp does not go on after
battery has been connected.
(Charging does not start.)
(1) Poor connection of terminal
(2) Faulty battery (open circuit)
(3) Faulty PCB
See trouble mode (C).
Pilot lamp remains flashing (on for
1 second, off for 0.5 second) after
battery has been connected.
(1) Poor connection of terminal
(2) Faulty battery (open circuit)
(3) Faulty PCB
See trouble mode (D).
2. Troubleshooting and repair procedure
Check with a tester.
(About 1 k
ȍ
)
Pilot lamp fails to go on or flash.
Is there an
open circuit in
the AC cord?
Is the fuse (3.15
A) on the primary
side blown?
NO
YES
NO
Faulty internal circuit
NO
TROUBLESHOOTING GUIDE
YES
YES
Replace the PCB.
Replace the fuse (3.15 A).
Replace the AC cord.
Apply rated voltage.
NO
Is rated voltage
applied to the
plug?
Is there continuity
between blades
of the AC cord
plug?
YES
