Kenwood TKR-851 Service Manual page 89

TX-RX UNIT (X57-6962-70) (A/2)
A2 SUB UNIT (TX VCO/PLL) (X58-4810-10)
TX-CV
R368
(TP102)
33
D350
FREQUENCY
CONTROL D354
L352 MODULATION
R351
1u
CN350 0
GND 1 1 GND
U-TXVCO
STT 2 2 STT C368 BUFFER CN351
AMP
STT 7p
Q350 GND 2 8 GND
8CL 3 3 8CL Q355
VCO OSC
8CLT Q350 2SC4226(R24) C379
VO 1 7 VO
CV 4 4 CV R353 L353 D352 C356 L356 2SK508NV(K52) C374 R359
4p
1u
9CL 5 5 9CL 0 1SV282 8p L34-4645-05 0.5p 47
9CLT
FREQUENCY
MO 6 6 MO CONTROL
C223
100p
C233
0.01u
PLL IC300
L307 C320 C318
R316 SA7025DK
1.5k 2.2u10
2.2u10 11 10
PHA AUXIN
12 9
VSSA RA C306
ACTIVE 13 8 0.01u
FILTER PHI REFIN
R309
R312 220 14 7 R305 C305
CN300
Q300 PHP VCCP
2SC4116(GR)
330 R306 L306 15 6 0 1000p FIN 1 9 FIN
VDDA RFIN
R311
10k 22 16 5 C304 5C 2 10 5C
RN RFIN 1000p
ACTIVE R310 17 4 LDT 3 11 LDT
FILTER RF VSS
R320
Q301 3.3k L305 18 3
R304 100 EPT 4 12 EPT
2SC4116(GR) LOCK STROBE
3.3k
19 2
R303 100 DP 5 13 DP
TEST DATA
1
L300 L304 20 R302 100 CP 6 14 CP
VDD CLOCK
REF 7 15 REF
R301 100
R300 10
R319 33
Q302
L301 L302 C321 2SC4226(R24)
C325 4p
15n 15n 4p
BUFFER
AMP
X3
16.8MHz
1 4
VC +VDC
BUFFER AMP
L31
C89
IC1 2 3
GND OUT
NJM4558E
10u 0.01u
1 8
AOUT +V
2 7
A-IN BOUT
3 6
A+IN B-IN
5
4
-V
B+IN
C179 0.01u
VO VO
A3 SUB UNIT (RX VCO/PLL) (X58-4800-10)
R368
R351 L352 33
R354 33
0 1u
V-RXVCOL
C368 7p
RX-CV
(TP101)
FREQUENCY
VCO OSC
CONTROL
L356 Q350
L353 D352 C356
R353 L34-4608-82 2SK508NV(K52)
0 1u
1SV282 6p
CN350
GND 1 1 GND FREQUENCY
CONTROL
SRR 2 2 SRR
SRR
8CL 3 3 8CL
8CLR
-6.0dBm
CV 4 4 CV
9CL 5 5 9CL R350 L350
9CLR
0 1u V-RXVCOH
NC 6 6 NC
FREQUENCY C369 7p
CONTROL
Q351
L351 D353 C355 2SK508NV(K52)
R352 L357
0 1u L34-4608-82
1SV282 5p
FREQUENCY
CONTROL
VCO OSC
PLL
C320 C318
R316
1.5k
2.2u10 2.2u10 11
PHA
12
VSSA
ACTIVE 13
FILTER
PHI
R309
R312 330 14
Q300 PHP
2SC4116(GR) 330 R306 15
VDDA
R311
C234 10k 22 16
RN
0.01u ACTIVE R310 17
FILTER RF
R320
3.3k 18
Q301
2SC4116(GR) LOCK
2.2k
19
TEST
20
VDD
L300
L301 L302 C321
18n 18n 4p
X2
16.8MHz
1
VC
BUFFER AMP
IC2
2
NJM4558E
GND
1 8
AOUT +V
2 7
A-IN BOUT
3 6
A+IN
B-IN
4 5
-V
B+IN
C84 0.01u
MB MB
MO MO
VO VO
TX SW
1.26V
B:1.56V
D8
E:0.79V
DAN235K
C:6.25V
C101 R106
BUFFER CN351 5p 0
AMP R168 C94
GND 2 8 GND
Q355
2SC4226(R24) C379 0
VO 1 7 VO -3.0dBm 3p Q11
C374 2SC3356(R24)
R359
4p RF AMP
47
0.5p
B:7.72V
DC SW E:7.04V
C:7.82V
Q352
2SC4116(Y)
R362
4.7k
2SC4116(GR)
DC SW
R364
Q354
10k DTC114EUA
DC SW
RIPPLE FILTER
Q353
R357 2SC4116(Y)
R363
180 RIPPLE FILTER
4.7k C95 C100 C105 Q13
2SC4116(GR)
4p 5p 7p
R162 C91
Q8 Q9 Q10
2SC3356 2SC3356 2SC3357
270 4p
RF AMP RF AMP
B:7.85V
E:7.16V
C:7.92V
IC300
SA7025DK
B:1.73V B:1.46V B:1.50V
E:0.98V E:0.74V E:1.13V
10 C:6.70V C:6.56V C:7.06V
AUXIN
9
RA C306
8 0.01u
REFIN
7 R305 C305
CN300
VCCP L34
6 0 1000p FIN 1 9 FIN
10u
RFIN
5 C304 5C 2 10 5C
RFIN 1000p
4 LDR 3 11 LDR
VSS
3 12 EPR
R304 100 EPR 4
STROBE
2 R303 100 DP 5 13 DP
DATA
1 R302 100 CP 6 14 CP
CLOCK
REF 7 15 REF
R301 100
R300 10 C7
L2
RF AMP
L79-1849-05
L6 12p
C3
R319 33
18n B:3.40V
12p E:2.62V
Q1 C:7.71V
Q302
2SC3357
2SC4226(R24)
C325 4p
BUFFER
AMP
A1
W02-1939-05_8
4
+VDC
L33
L32 15n
3 C90
OUT
10u 0.01u
C31
R31
5.6
330p
CN1
C13
470p
-92.5dBm
MB MB
MO MO
R144 4.7k 8T
C164 470p
R135 5CR
5.6
Q16 T:8.05V
T:2.02V DC SW Q18
2SB1132(Q,R) R:0V DC SW 2SB1386(R)
R:0V 7.84V
T:0V
R:2.02V
R129
R130
47k
47k
DC SW DC SW
Q23 Q17
DTC114EUA DTC114EUA
T:8.05V
R:0V DC SW
Q19
B:9.02V DTC114EUA
E:8.36V
Q14 C:9.04V
5.09V 7.90V 5.02V 8.04V
RIPPLE FILTER IC3 IC11
NJM78L05UA NJM78L05UA
Q12 R123 Q14 R126
10 2SC4116(GR) 10 1 3
1 3
OUT IN OUT IN
2
2
VOLTAGE
VOLTAGE
REGULATOR REGULATOR
8TC
Q12
8C
W/N
7.91V IC10 IC4
RIPPLE FILTER TA7808F 13.11V NJM7808FA
13.12V
R122 Q15 R127 8.06V
10 2SC4116(GR) 10
2 1 3 1
OUT IN OUT IN
3
VOLTAGE 2
REGULATOR
VOLTAGE
IC5
REGULATOR
AN8009M
13.11V
1 3
B:9.03V OUT IN
E:8.38V
C:9.05V 9.07V
2
VOLTAGE
REGULATOR
MB
MO
D2
W5:1.08V WIDE/NARROW SW
W4:1.08V DAN235K
N:0V
C214 R150
L29 L30 R114 CN3
R10 R113 -4.1dBm 0.01u 18
18 18n 18n 0 470
W5:0V
W4:0V
N:1.05V
L4
L5
L79-1849-05 L79-1849-05 L14
L17 L18
L34-4527-05
C210 C211 L34-4526-05 L34-4526-05
8p 12p
XF2
L71-0627-05
44.85MHz
WIDE
W5:1.09V
W4:1.09V L19
R37 L15 L16
N:0V L34-4527-05 L34-4527-05
L34-4526-05
6.8k
WIDE/NARROW SW
D1
DAN235K
C37
XF1
L12 0.01u
L71-0513-05
Q2 44.85MHz
2SC3357
330n
NARROW
RF AMP
B:1.31V W5:0V
E:0.54V W4:0V
C:6.66V N:1.06V
W/N
CN2
-91.0dBm
+3.0dBm
8T
5CR
IC6 D/A SHIFT IC7
M62354GP CONVERTER REGISTER BU4094BCF
16 1 1 16 1
VCC DO STRB VDD 2
3
15 2 2 15
VDD LD DATA OE
14 3 3 14
AO6 CLK CLK Q5
13 4 4 13 1
AO5 DI Q1 Q6
2
12 5 5 12
AO4 AO1 Q2 Q7 L40 3
L39 4
11 6 6 11
AO3 AO2 Q3 Q8 L38 5
L37 6
10 7 7 10
L36 7
NC2 NC1 Q4 Q'S
L35 8
9 8 8 9
VSS GND VSS QS
36
35
34
8TC 33
32
8C
31
W/N
30
K1 29
S76-0401-05
28
27
28.5mV 26
25
24
23
22
DC SW 21
20
D7 1SS355
19
C162 0.01u 18
17
DC SW
16
D12 R137 1k 15
R138 1k 14
13
02DZ18(X,Y) LDT
12
LDR
Q24 Q25
DTD114EK DTC114EUA R139 0 11
EPT
R140 0 10
DC SW DC SW EPR
R141 0 9
CP
R142 0 8
DP
R182 0 7
MB 6
MO 5
4
CN4
R60 C216 3
L21
-64.0dBm 75mV 2
10u 10k 470p 1
SURGE
L43 PROTECTOR
B:0.67V
E:0.07V D5
C66
C:3.70V MA742 3.70V
DC SW
C78
Q26 330p
DTC114EUA
0.1u
R83 C73
L23 C60 NOISE
C67 0 0.1u
DETECTION
1u Q7
0.01u 330p 2SC4617(S)
D13
NOISE AMP MA742
NOISE
DETECTION
Q3
C52 2SC3356(R24)
R65
B:0.76V
0.01u E:0V
4.7k
C:4.94V
RF AMP
FM IF
X1 SYSTEM
44.395MHz 7.90V DC SW
Q5
C53 C58 W5:5.05V DTA144EUA
18p W4:0V
1000p
N:0V
L20
R50
15k 1u C64 0.1u
WIDE/NARROW SW
CF1 DC SW
D3 L72-0366-05 L24
Q27 Q4 Q6
DAN235K L34-4459-05 DTC144EUA DTC144EUA
DTC144EUA
WIDE5kHz/
W5:5.03V
WIDE4kHz
W4:5.03V
SWITCH
N:0V
D4
Q4
DAN235K
WIDE WIDE/NARROW SW W5:0V
W4:0V
WIDE/NARROW SW
N:4.78V
CF2
L72-0376-05
R160 R161
470 470
NARROW
W/N
-118.0dBm
E04-0154-05
CN19
FINAL UNIT
(X45-3742-71)
(A/2)-CN1
CN15
E40-5703-05
E
B FINAL UNIT
(X45-3742-71)
B
(A/2)-CN5
CN16
E40-5632-05
GND
NC
8T
PC FINAL UNIT
FAS (X45-3742-71)
(A/2)-CN3
FDT
BUP
TMP
CN14
E40-6009-05
8C
8C
NC
SB
SB
SB
SB
NC
QS
GND
GND
MO
MB
GND
SOE
TMP
PSW
BUP
LD2
FWD
STB
CK
DT
LDT
LDR
EPT
EPR
CP
DP
SC
RSSI
ASQ
GND
NC
DET
NC
CN18
E04-0154-05