Kenwood TK-388G SPECIFICATIONS
TK-388G
TK-388G
BLOCK DIAGRAM /
方块图
77
78
TK-388G
FM IF
SYSTEM
C309
Q301
–120dBm
–119.5dBm
–107.5dBm
–96.5dBm
–102dBm
–101dBm
–92.5dBm 70mVrms
300mVrms
Q22
C131
C242
IC16
5
4
3
41
IC14
IC11
SP
290mVrms 190mVrms
410mVrms 15mVrms
0.63mVrms
-10.5dBm
IC17
DAC
12
13
ALC
COMP
SW
IDC
6
98
191815 16
C243
17.5mVrms 3mVrms
37mVrms
304mVrms 292mVrms 281mVrms 400mVrms 298mVrms
MIC
IC14
Q6
+13.6dBm
C327
-4.3dBm
RF (360.05MHz)
IF1 (49.95MHz) IF2 (450kHz) AF (1kHz)
IC15
AF VR
C206C239
Q4
Q2
C30
Q3
C246
C27
C14
AF (1kHz)
RF (360.05MHz)VCO
RXLO
D10
D5
-7.5dBm
C12
Power Module
4.0W
RF (360.05MHz)
AF (1kHz)
RX
TX
C304
Q5
+7.0dBm
C11
+
C173
Q30
+
IC4
Local
Level
67
410
35
D6
67
Q19
C217
TK-388G
LEVEL DIAGRAM /
To make measurements in the AF section, con-
nect the AC level meter. (ANT input : -53dBm,
1kHz FM, 3kHz DEV(WIDE), SP output : 50mW)
In the RF section, use a 1000pF coupling capaci-
tor. (The display shows the SSG input value re-
quired to obtain 12dB SINAD Without Local Level.)
电平图
AG is set to the MIC input becomes 3kHz DEV.
at 1kHz MOD. (WIDE)
To make measurements in the AF section, con-
nect the AC level meter.
In the RF section, use a 1000pF coupling ca-
pacitor.
KNB-14/KNB-15A (Ni-Cd BATTERY)
KNB-14 CIRCUIT DIAGRAM SPECIFICATIONS
Voltage : 7.2V (1.2V x 6)
Charging current : 600mAh
Discharge pin side
Breaker
(70±5
Diode
°
C)
Breaker
(80±5
Thermistor
Charge pin side
°
C)
KNB-15A CIRCUIT DIAGRAM SPECIFICATIONS
Discharge pin side
Thermistor
Charge pin side
Breaker
(80±5
°
C)
Breaker
(70±5
Diode
°
C)
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
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
79
80
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