71
TK-390
TERMINAL FUNCTION /
KN
B-17A (Ni-Cd BATTERY)
T
–
–
+
+
Discharge pin side
Breaker
(80
±
5
°
C)
Breaker
(70
±
5
°
C)
Diode
Thermister
Charge pin side
KNB-17A
External View
KNB-17A
Specifications
Voltage ....................................... 7.2V (1.2V x 6)
Charging current ........................ 1500mAh
Dimensions (mm) ...................... 58.0 W x 110.8 H x 20.0 D
(Projections included)
Charger and charging time
KSC-19 (Normal Charger) ...... Approx. 8 hours
KSC-20 (Rapid charger) ......... Approx. 1.3 hour
Weight ....................................... 220g
KNB-17A
Circuit Diagram
CN No. Pin No. Name
I/O
Function
26
NC
–
Not use.
27
KCK
I
Key scan IC clock data input.
28
KRS
I
Key scan IC reset input.
29
INAFC
I
Internal speaker switch input.
30
EXAFC
I
External speaker switch input.
31
AMPSW
I
Audio AMP control switch input.
32
OPPTT
I
For optional board. (See page 22.)
33
TCONT
I
For optional board. (See page 22.)
CN2
1
AFE
–
Audio GND.
for X57
2
AFE
–
Audio GND.
CN3
1
Q8
O
Key scan IC Q8 signal output.
2
Q7
O
Key scan IC Q7 signal output.
3
PTTE
–
PTT GND.
4
PTT
I
Normally : 5V, transmit when connected GND.
5
KI1
I
Key input.
6
Q6
O
Key scan IC Q6 signal output.
CN4
1
+
–
BTL + output for internal speaker.
2
–
–
BTL – output for internal speaker.
CONTROL UNIT (X53-3930-XX) (B/6)
CN101
1
E
–
GND.
2
TOGGLE
O
Normally : 5V, switched toggle when
for
connected GND.
X57
3
KI2
O
Key output.
4
Q6
I
Key scan IC Q6 signal input.
5
Q7
I
Key scan IC Q7 signal input.
6
CE
I
Chip select input for LCD driver.
7
CL
I
Clock data input for LCD driver.
8
DI
I
Data input for LCD driver.
9
LAMP
–
Backlight LED control.
Normally : 0V, Lighting : 7.5V
10
TX LED
–
TX LED control.
Normally : 0V, Lighting : 7.5V
11
BLED
–
Busy LED control.
Normally : 0V, Lighting : 7.5V
12
5M
–
5V.
