Kenwood TKR-850 Service Manual page 87

K
TKR-850
VO
B:1.56V
E:0.79V
C:6.25V
* R168 C94
*
RF AMP
Q11
2SC3356(R24)
C95
* * C100
Q9
Q8
2SC3356
2SC3356
RF AMP
RF AMP
B:1.73V B:1.46V B:1.50V
E:0.74V E:1.13V
E:0.98V
C:6.70V C:6.56V C:7.06V
RF AMP
* L2
2SC3357
L6
*
C3
*
L33
*
MB
R31
MO 5.6
CN1
C13
470p
-92.5dBm
TX-RX UNIT
X57-696X-XX C2 C3 C7 C8
2-70 E NO 12P 12P 0.5P
0-11 K NO 12P 12P 0.5P
0-12 K2 NO 10P 7P 1P
0-13 K3 1P 10P 8P 1P
76
X57-696 (A/2) 3/4
L
SCHEMATIC DIAGRAM
R144 4.7k
TX SW C164 470p
1.26V
D8
T:2.02V
DAN235K R:0V
C101
R106
T:0V
R:2.02V
0
5p
DTC114EUA
B:7.72V
E:7.04V
C:7.82V
Q12
R123
2SC4116(GR)
10
Q12
RIPPLE FILTER
RIPPLE FILTER
Q13 R122
C105
2SC4116(GR) 10
7p
Q10
2SC3357
B:7.85V
E:7.16V
C:7.92V
L34
10u
L4 L5
* *
* C7 C210
*
Q1
B:3.40V
E:2.62V
C:7.71V
A1
W02-1939-05_8
R37
6.8k
C37
0.01u
C31
L12
Q2
330n 2SC3357
330p
RF AMP
B:1.31V
E:0.54V
C:6.66V
CN2
-91.0dBm
C14 C15 C94 C95 C100 C210 C211 C215
6P 6P 3P 4P 5P 8P 12P NO
6P 6P 3P 4P 5P 8P 12P NO
8P 8P 3P 6P 5P 6P NO 5P
7P 7P 4P 4P 6P 10P NO NO
M
R135
5.6
Q16
DC SW
2SB1132(Q,R)
7.84V
DC SW
Q23
T:8.05V
R:0V
B:9.02V
E:8.36V
Q14
C:9.04V
5.09V
RIPPLE FILTER
IC3
NJM78L05UA
Q14
R126
2SC4116(GR) 10
1
OUT
2
VOLTAGE
REGULATOR
IC10
7.91V
RIPPLE FILTER
TA7808F
Q15 R127
2SC4116(GR) 10
2
OUT
VOLTAGE
REGULATOR
B:9.03V
E:8.38V
C:9.05V
L29 *
R10 *
18
R173
*
L14
L34-4527-05
* C211
W5:1.09V
W4:1.09V
L15
N:0V
L34-4526-05
WIDE/NARROW SW
D1
DAN235K
W5:0V
W4:0V
N:1.06V
C251 L2 L3 L4 L5
NO L79-1849-05 18n L79-1849-05 L79-1849-05
NO L79-1849-05 18n L79-1849-05 L79-1849-05
2P L79-1852-05 15n L79-1852-05 L79-1852-05
3P L79-1853-05 15n L79-1853-05 L79-1853-05
N
TX-RX UNIT (X57-696X-XX) (A/2)
T:8.05V
Q18
DC SW
R:0V
2SB1386(R)
R129
47k R130
47k
DC SW
Q17
DTC114EUA
DC SW
Q19
DTC114EUA
7.90V 5.02V 8.04V
IC11
NJM78L05UA
1 3
3
IN OUT IN
2
VOLTAGE
REGULATOR
IC4
13.11V
NJM7808FA
8.06V
1 3
IN OUT IN
3
2
VOLTAGE
REGULATOR
IC5
AN8009M
1
OUT IN
9.07V
2
VOLTAGE
REGULATOR
W5:1.08V D2
WIDE/NARROW SW
W4:1.08V DAN235K
N:0V
L30 CN3
R114 R113
-4.1dBm
0
470
W5:0V
W4:0V
N:1.05V
L17
L18
L34-4526-05 L34-4526-05
* XF2
44.85MHz
WIDE
L16
L19
L34-4527-05 L34-4527-05
XF1
L71-0513-05
44.85MHz
NARROW
L6 L26 L27 L28 L29 L30 L33 R94
18n 15n 22n 18n 18n 18n 15n 100
18n 15n 22n 18n 18n 18n 15n 100
18n 15n 18n 18n 18n 18n 18n 82
22n 22n 22n 22n 22n 22n 22n 100
O
8T
5CR
8TC
8C
W/N
13.12V
1
13.11V
3
MB
MO
C214
R150
18
0.01u
W/N
R168 R173 XF2
0 NO L71-0627-05
0 NO L71-0512-05
0 0 L71-0512-05
270 0 L71-0512-05