Troubleshooting And Adjustment Method - Citizen E31 M Technical Information

§16. TROUBLESHOOTING AND ADJUSTMENT METHOD
Measurement of
1
Watch stops secondary battery
voltage
* Since the watch may
Below 2.3 V
have stopped
because of
insufficient charge of
the secondary
battery, charge the
secondary batter first
of all. If the watch
Charging
still does not start
after the secondary
battery is charged,
carry out
troubleshooting
according to the flow
shown at right.
Below 2.3 V
Time error
Normal
Charging
9
Measurement of
time
Below 2.3 V
Abnormal
Measurement of
1
secondary battery
voltage
2.3V or higher
8 Check of dial
Defective Calendar
side mechanism
11
Check of switch
Defects in operation
function
Abnormal
Means to charge by applying
Charging
sufficient light.
2.3V or higher
2
Confirmation of
output signal
Signal is
generated.
No
2.3V or
higher
Hand start moving?
Yes
Remove dirt or replace
parts.
Abnormal
Normal
3 7 Check of solar
Check of
cell
connection parts
Abnormal
Replacement of
solar cell
Normal
Check of
3 7
connection
parts
Below 2.3 V
Abnormal
Abnormal
Remove dirt or replace
parts.
Replacement of
solar cell
Signal is not
generated.
Confirmation of
2
output signal
Signal is
generated.
4
Abnormal
Normal
Remove dirt or replace
parts.
Abnormal
Signal is not
generated.
3
Check of
connection parts
Normal
4 5
Measurement of
coil resistance
Abnormal
Abnormal
Replacement of
coil complete
Normal
Measurement of
6
current
consumption
Abnormal
Normal
5
Check of train
wheel
Abnormal
10
Normal
Measurement of
6
Check of solar
current
cell
consumption
Abnormal
5 Check of train
wheel
Abnormal
Replacement of
electronic circuit
unit
Remove dirt or replace
parts.
Abnormal
Normal
3 Check of Replacement of
connection parts electronic circuit unit
Normal
5
Check of train
Measurement of
wheel
coil resistance
Abnormal
Replacement of
coil complete
Replacement of
electronic circuit unit
Repair parts.
19
22
Normal
Replacement of
electronic circuit unit
Normal
Check of train
wheel
Replace parts.
8 Check of dial
side mechanism
Normal
Normal
Replacement
of secondary
battery
Replacement of
electronic circuit
unit
Replace parts.
Charging
Confirmation of
using condition
Normal
Replacement
of secondary
battery
Measurement of
1
secondary battery
voltage
Normal
Replacement of
electronic circuit
unit
Replace parts.
Measurement of
6
current
consumption
9
Measurement of
time
Check of
12
appearance
and functions
Normal
Replace parts.
End
Abnormal
Replace
parts.