Kenwood TK-270G - Manual (Page 48)

60 59
KNB-14/KNB-15A (Ni-Cd BATTERY)
LEVEL DIAGRAM
T
o
make measurements in the
AF section, con-
nect the
AC level meter
. (ANT
input : -53dBm,
1kHz FM, 3kHz DEV(WIDE).) In the RF section, use a 1000pF coupling capaci- tor
. (The display shows the SSG input value re-
quired to obtain 12dB SINAD W
ithout Local Level.)
AG is set to the MIC input becomes 3kHz DEV
.
at 1kHz MOD. (WIDE) T
o
make measurements in the
AF section, con-
nect the
AC level meter
.
In the RF section, use a 1000pF coupling ca- pacitor
.
TK-260G/270G TK-260G/270G
FM IF
SYSTEM
C310
Q301
Q19
XF1
–123dBm
–122dBm
–104dBm
–106dBm
–104dBm
–104dBm
–98dBm
180mV
rms
460mV
rms
Q22
C131
C242
IC16
5
4
3
41
IC14
IC11
SP
360mV
rms
190mV
rms
420mV
rms
20mV
rms
0.63mV
rms
–7.9dBm
IC17 DAC
12
13
ALC
COMP
SW
IDC
6
98
19
18
15
16
C243
10.5mV
rms
9mV
rms
33mV
rms
285mV
rms
275mV
rms
265mV
rms
320mV
rms
120mV
rms
MIC
IC14
Q6
+17.0dBm
–5.1dBm
RF (162.05MHz)
IF1 (49.95MHz)
IF2 (450kHz)
AF (1kHz)
IC15
AF VR
C206
C239
Q2
Q3
C246
C27
C28
C14
AF (1kHz)
RF (162.05MHz)
VCO
RXLO
D10
D5
+5.6dBm
C12
Power Module
5.0W
RF (162.05MHz)
AF (1kHz)
RX TX
+
C173
Q30
+
IC4
Local Level
41
0
67
35
IC301
27
D6
–3.2dBm
Q4
C30
C303
67
KNB-15A CIRCUIT DIAGRAM SPECIFICATIONS
Voltage : 7.2V (1.2V x 6)
Charging current : 1100mAh
Dimensions : 60.8W x 110.8H x 20.3D (mm)
(projections included)
Charger and charging time:
KSC-15 (normal charger), approximately 8 hours
KSC-16 (rapid charger), approximately 2 hours
Weight
: 210g
Discharge pin side
Breaker
(80 ± 5 ° C)
Charge pin side
Thermistor
Diode
Breaker
(70 ± 5 ° C)
KNB-14 CIRCUIT DIAGRAM SPECIFICATIONS
Voltage : 7.2V (1.2V x 6)
Charging current : 600mAh
Dimensions : 60.8W x 110.8H x 17.3D (mm)
(projections included)
Charger and charging time:
KSC-15 (normal charger), approximately 8 hours
KSC-16 (rapid charger), approximately 1 hour
Weight
: 165g
Discharge pin side
Breaker
(80 ± 5 ° C)
Charge pin side
Thermistor
Diode
Breaker
(70
±
5
°
C)