Kenwood TKR-750 Service Manual page 88

P
TX-RX UNIT (X57-695X-XX) (A/2)
8T
5CR
D/A
IC6
CONVERTER
M62354GP
16 1
VCC DO
15 2
VDD LD
14 3
AO6 CLK
13 4
AO5 DI
12 5
AO4 AO1
11 6
AO3 AO2
10 7
NC2 NC1
9 8
VSS GND
8TC
8C
W/N
K1
S76-0401-05
DC SW
D7 1SS355
C162 0.01u
Q24
DTD114EK DTC114EUA
DC SW
MB
MO
CN4
-62.5dBm
DC SW
DTC114EUA
L23
1u
Q3
C52
2SC3356(R24)
B:0.77V
0.01u
E:0V
C:4.91V
RF AMP
FM IF
SYSTEM
X1
44.395MHz
C58
C53
18p
1000p
L20
R50
1u
15k
D3
DAN235K
WIDE/NARROW
SWITCH
R161
470
W/N
Note : The components marked with a dot (
Q
SCHEMATIC DIAGRAM
SHIFT
IC7
REGISTER
BU4094BCF
1
STRB VDD
2
DATA
3
CLK
4
Q1
5
Q2
6
Q3
7
Q4 Q'S
8
VSS
DC SW
D12
02DZ18(X,Y)
Q25
DC SW
C216
R60
10k
470p
C66
330p
Q26
C60
C67
0.01u 330p
C64 0.1u
CF1
L72-0366-05
D4
WIDE/NARROW
D4
SWITCH
DAN235K
WIDE
CF2
L72-0376-05
R162
470
NARROW
• ) are parts of layer 1.
R
16
15
OE
14
Q5
13
Q6
12
Q7
11
Q8
10
9
QS
LDT
LDR
EPT
EPR
L43
B:0.67V
E:0.07V
C:4.00V
C73
R83
0.1u
0
Q7
2SC4617(S)
D13
NOISE AMP
MA742
NOISE
DETECTION
R65
4.7k
7.87V
W5:4.99V
W4:0V
N:0V
L24
Q27
L34-4459-05
DTC144EUA
WIDE5kHz/
WIDE4kHz
SWITCH
S
TKR-750
+0.8dBm
1
2
3
1
2
L39 3
L38 4
L37 5
L36 6
L35 7
L34 8
36
35
34
33
32
31
30
29
28
27
26
220mV
25
24
23
22
21
20
19
18
17
16
R137 1k 15
R138 1k 14
13
12
R139 0 11
R140 0 10
R141 0 9
CP
R142 0 8
DP
R198 7
0
6
5
4
3
71mV 2
1
SURGE
PROTECTOR
D5
3.40V
MA742
C78
0.1u
NOISE
DETECTION
DC SW
Q5
DTA144EUA
DC SW
Q4 Q6
DTC144EUA DTC144EUA
W5:4.97V
W4:4.97V
N:0V
Q4
W5:0V
WIDE/NARROW
W4:0V
SWITCH
N:4.71V
-117.0dBm
X57-695 (A/2) 4/4
T
1
E04-0154-05
CN19
FINAL UNIT
(X45-3730-XX)
(A/2)-CN1
CN15
E40-5703-05
E
FINAL UNIT
B
(X45-3730-XX)
B
(A/2)-CN5
CN16
E40-5632-05
GND
NC
8T
PC
FINAL UNIT
FAS (X45-3730-XX)
(A/2)-CN3
2
FDT
BUP
TMP
CN14
E40-6009-05
8C
8C
NC
SB
SB
SB
SB
NC
QS
GND
GND
3
MO
MB
GND
SOE
TMP
PSW
BUP
LD2
FWD
STB
CK
DT
LDT
LDR
EPT
EPR
CP
DP
SC
RSSI
ASQ
GND
4
NC
DET
NC
5
6
CN18
E04-0154-05
7
77