Kenwood TKR-750 Service Manual page 81

FINAL UNIT (X45-3730-XX) (A/2)
T:7.84V
R:0V
C1 C143 C11
CN1 R64
0
33p
1000p 47p
Q2
2SC3356
(R24)
THERMAL
T:1.15V
SENSE
R:0V
D1
Q2,3
1SS226
CN3
RF AMP
1
TMP
2
BUP
3
PDT
4
FAS
5
PC
6
8T
7
NC
8
GND
D6
SURGE
VOLTAGE
ABSORPTION
THERMOSTAT
REGULATOR
T:13.02V
IC2
IC3
R:13.65V
MAX6502UKP035
NJM78L05UA
CN4
1 3
3 1 4
IN OUT
FAB VCC HYST
COM 2
FAG
GND2
2
2 1
5
ToVER GND1
Q9
DTD123EK
DC SWITCH
T:8.04V
R:0V
350mW
C96 C16 C19 L5
R15 L4
22n 22n
33 1000p
Q3 18p 1000p
2SC3357
T:0.73V
R:0V
DC SWITCH
Q8
2SC4116(Y)
R27 R32
470 100k
R60
0
X45-3730-XX R18
-10 K,E 146-173MHz 100
-11 K2 136-150MHz 47
F1
3.0A
C30
120p C54
* L8
1000p
TX Q5
DRIVE
FINAL AMP
AMP
R19 R20 R21
R23
100k
100k 0 0
D4,5
RF DETECTOR
D2
T:5.18V
VOLTAGE
R:0V
REFERENCE DC AMP
IC1
TA75W01FU
5 4
IN2+
VEE
6 3 R35
IN2- IN1+
7 2 100k
OUT-B
IN1-
8 1
VCC OUT1
R31 10k
D8
REVERSE
CURRENT
PROTECTION
R55
1k
T:13.03V
K1
R:13.56V
D9
MINISMDC050-02
CURRENT
PROTECTOR
CHARGE
SURGE
PROTECTOR
X45-3730-XX C47 L8 C173
-10 K,E 146-173MHz NO 22n 18p
-11 K2 136-150MHz 36p 15n 27p
C160
1000p
L16
15n
C92
L9 L10 L11
47n 47n 47n
1000p
L17
18n
RF SWITCH
D53
MA4PH633
R73 C60
0
R41 1000p
0
D55,56
RF SWITCH
1
ANT SW
2
3
(X45-3730-XX) (B/2)
CN51
MAIN DC CN6
+B1
W3
W4 GND
D51,52
PROTECT OF REVERSE
CONNECTION
CN52
BACKUP CN7
W5 +B2
GND CN8
TX ANT
RX
CN5
E
B
B
MAIN DC
+B1
GND
BACK UP
BATTERY
+B2
GND