Kirisun PT7200-01, Руководство по обслуживанию

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PT7200 SERVICE MANUAL
Chapter 9 KBC-70C Charger
9.1 General Description:
Function: intelligent rapid charging
Applicable battery: KB-70B (1700mAH, 7.4V Li-ion battery),
KB-70A (1350mAH, 7.2V nickel-hydrogen pile)
Battery type identification: External
Input power supply: DC11V-20V, 500mA, ripples <500mV
9.2 Operating environment
Temperature: -5 2 -- +55 2
Humidity: 95%@40
9.3 Safety requirements
In accordance with safety requirements of CCC, CE and UL, etc.
9.4 Technical Specifications
A. The power amplifier tube Q68 is broken and
there is no power output, please change it
with a new tube.
B. The microphone is broken, please change it
with a new one.
C. The operational amplifier IC14 is broken,
please change it with a new one.
A. The speaker is broken, please change it with
a new one.
B. The audio amplifier Q92 is broken, please
change it with a new one.
C. The switch tubes Q86 and Q87 are broken
and please change them with new ones.
D. The operational amplifier IC13 is broken,
please change it with a new one.
A. Make sure the programming cable is well
connected.
B. The computer RS-232 serial port output is
unmoral, please fix the computer.
C. The MIC is not well connected with the SPK
socket. Check the socket and if it is unable to
work normally please change it with a new one.
5
6
7
The indicator
lights red
when in
transmitting
but no voice
can be heard.
The indicator
lights green
when in
receiving but
no voice can
be heard.
Cannot
program the
radio
parameters
normally.
Idling input current: 15mA
Fast charging current: 410 25mA
Max. charging time of nickel-hydrogen battery: 285m 15m
Max. charging time of li-ion battery: 510m 30m
Max. charging limit voltage : 9.6V 0.2V
Max. battery temperature: +50 2
Specified voltage of charged battery:
Nickel-hydrogen battery: pre-charging when the voltage < 5.5 0.1V,
when the battery voltage reaches 6.5 0.1V, the charging turns to
rapid charging. When the battery voltage reaches 9.6V 0.2V, the
battery will be deemed as full and the charging will be stopped.
Li-ion battery: pre-charging when the voltage < 6.5 0.1V, when
the battery voltage reaches 6.5 0.1V, the charging turns to rapid
charging.
Charging process checking: battery voltage, battery temperature
rise, - V, charging time, max. Battery temperature
Min battery voltage:5.5V 0.1V for nickel-hydrogen battery
6.5V 0.1V for Li-ion battery
Pre-charging current of battery: 180mA 10mA for nickel-
hydrogen battery
90mA 10mA for li-ion battery
Pre-charging time: 15~20m
The battery voltage is checked during the pre-charging, when it
reaches the threshold voltage of the battery, the charging will turn
to fast charging.
Conditions to stop charging:
Normal conditions: battery full, nickel-hydrogen battery: -
V=30mV 60mV
Abnormal conditions:
1) Battery temperature is higher than the limit value
2) Battery voltage exceeds the limit value
3) Charging time exceeds the limit value
4) The battery voltage fails to reach the min. voltage allowed for
normal battery during the pre-charging
Charging efficiency: after being charged in constant temperature,
the capacity of the battery should not be lower than 90% of the
actual capacity.
After being charged in high temperature, the capacity of the battery
should not be lower than 70% of the actual capacity.
After being charged in low temperature, the capacity of the battery
should not be lower than 80% of the actual capacity.
Other functions:
1 Charging process indication
2 Charging abnormality indication
3 Pre-charging function for over-discharged battery
4 Trickle charging for nickel-hydrogen battery
5 Output short-circuit protection function (short-circuit current <
10mA)
9.5 LED Status Table:
Power
LED(green)
Battery Temperature,
battery and circuit
abnormality indication
(yellow)
Charger status
LED Status
Charging
Indication
(red)
Standby/battery
not installed
Pre-charging
Fast charging
Charging
completed
Charger output
short circuit
Abnormal
charging status
Flashing
ON
ON
ON
ON(Nickel-
hydrogen
battery
13