Icom IC-H6 Service Manual page 52

When the battery pack is fully charged, the built-in thermal
switch in the pack is turned off and cuts off the
8
charging
terminal. Thus, H level is applied to Pin 1 and 2 of IC2,
Pin 5 of IC1 and the flip-flop is turned to reverse condition
and Pin 4 of IC1 becomes
L
level. This puts out
H
level at
Pin 10 of IC2 and turns 04 off, and any charging current
does not flow even if the thermal switch has been turned on
when the battery pack is cooled.
When charging IC-CM3, S3 is turned on and the charging
current (25mA) flows through R37.
Pin 5 and 8 of IC1 are grounded through S5, Pin 10 of IC2.
is L level and 04 emitter is grounded through R10. Thus,
the charging current flows until the battery pack is removed
from the charger.
When the battery pack is removed from the charger, S5 is
turned off and Pin 5 of IC1 is grounded through S5. This
resets the flip-flop for another charging.
When charging IC-CM4 inserted nickel-cadmium batteries
S4 is turned on and the charging current (45mA) flows
through R38. The logic circuit works the same as charging
IC-CM3.
SPECIFICATIONS OF BATTERY PACKS
IC-CM2 IC-CM3 IC-CM4 IC-CM4 IC-CM5
N-425A R N-250A A AA Size
AA Size
N-425A R
Cells
(X 6) (X 7) Alkaline
Nickel-
(X 9)
[Capacity]
[400mAH] [250mAH] (X 6)
Cadmium
[400mAH]
(X 6)
Voltage 7.2V 8.4V
9.0V
7.2V 10.BV
RF Output 1.0W 1.5W 1.5W 1.0W 2.3W
Charging
Rapid
Normal
----------
Normal
Rapid
Charging Time 1 -1.SH 15H
----------
15H 1 -1.SH
Suitable
CM-30
/
CM-30 CM-25U CM-30 CM-30
Charger
IC-CM1
Charging Current 600mA 25mA
-----------
45mA 600mA
Ambient Temperature +10°-+40°C 0°-+45°C
~
o
0
-+45°C +1o
0
-+40°C
Overcharge Protect
0
x
----------
x
0
Current
~ ~
/
8
~
Selector
Height 39m/m 39m/m 49m/m 49m/m 60m/m
Battery Replace
x x
0 0
x
A-4