VL-H860U
VL-H880U
VL-H870U
VL-H875U
VL-H890U
14
7-7. MAIN BATTERY CIRCUIT SECTION BLOCK DIAGRAM
Q2903 with FET always is "OFF" at DC input.
SYS 3.3V
REG circuit
NON REG 7.2V
ADP-DET
Vcc
DC input lived
DC input "ON"
"OFF" detection
Battery voltage
detection
BATT.-DET
When the battery
is installed , its
turned "ON".
CHARGE-ON_L
System microcomputer
VCR-H
RESET
CHG SW
Charge control IC
Current control
circuit section
Current
detective
section
Voltage
detective
section
LED Red
LED Green
Charging : Red light up
Completion : Green light up
LED_R
LED_G
Vcc
with JACK : OPEN
with out JACK : GND Short circuit
DC JACK input
Voltage detective
circuit
Q2901
Q2903
Lithium
ion battery
V
DC
<11V
V
BATT
=0
Charging off
Summary of Contents for VL-H860U
Page 15: ...VL H870U VL H875U VL H890U 15 VL H860U VL H880U M E M O ...
Page 17: ...VL H860U VL H880U 17 1 2 3 4 5 6 7 8 9 10 J I H G F E D C B A 4 1 3 2 LOCATION MAP 2 4 ...
Page 18: ...VL H860U VL H880U 18 4 1 3 2 LOCATION MAP 3 4 S R Q P O N M L K J ...
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Page 57: ...A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL H860U VL H880U 57 Wiring Side SIDE A ...
Page 59: ...A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL H860U VL H880U 59 Wiring Side SIDE B ...
Page 61: ...A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL H860U VL H880U 61 Wiring Side SIDE A ...
Page 63: ...A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL H860U VL H880U 63 Wiring Side SIDE B ...
Page 65: ...A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL H860U VL H880U 65 Wiring Side SIDE A ...
Page 67: ...A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL H860U VL H880U 67 Wiring Side SIDE B ...
