Kenwood TKR-750 Service Manual page 89

TX-RX UNIT (X57-695X-XX) (A/2)
A2 SUB UNIT (TX VCO/PLL) (X58-4790-10)
R368
D354 33
BUFFER CN351
L352 AMP
R351 MODULATION TX-VCOL GND 2 8 GND
Q355
0 10u 2SC4215(Y) C379
Q350 VO 1 7 VO
2SK508NV(K52)
FREQUENCY 10p
TX-CV
CONTROL R359
(TP102) C374
1p 47
R353 L353 D352 C356 C366 C368 DC SW
10u Q352
0 1SV282 27p 27p Q350 15p 2SC4116(Y)
CN350
VCO OSC R362
GND 1 1 GND FREQUENCY
CONTROL
4.7k
STT 2 2 STT
STT
8CL 3 3 8CL DC SW
R364
8CLT
Q354
10k
CV 4 4 CV DTC114EUA
D355
L350
9CL 5 5 9CL R350 MODULATION TX-VCOH
9CLT
Q351
0 10u 2SK508NV(K52) C375
MO 6 6 MO
FREQUENCY DC SW
1p
CONTROL Q353
2SC4116(Y)
R357
L351 D353
R352 C355 C367 C369 R363
470
0 10u 4.7k
1SV282 18p 18p Q351 9p
FREQUENCY VCO OSC
CONTROL
PLL
IC300
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
Q300 CN300
PHP VCCP
2SC4116(GR) 0
220 R306 L306 15 6 1000p FIN 1 9
VDDA RFIN
R311
22 16 5 C304 5C 2 10
22k
RN RFIN 1000p
ACTIVE R310 17 4 LDT 3 11
FILTER RF VSS
R320 Q301 6.8k L305
18 3 R304 100 EPT 4 12
2SC4116(GR) LOCK STROBE
1k
19 2 R303 100 DP 5 13
TEST DATA
L304
L300 20 1 R302 100 CP 6 14
VDD CLOCK
REF 7 15
R301 100
R300 10
C313 C316 R319 33
4p 4p
L301 L302 C321
Q302
39n 39n 2SC4215(Y) C325 5p
47p
BUFFER
AMP
1 4
VC +VDC
BUFFER AMP
* L27 C89
IC1 2 3
GND OUT
NJM2904E
0.01u
1 8
AOUT +V X3
16.8MHz
2 7
A-IN BOUT
3 6
A+IN B-IN
4 5
-V B+IN
C179 0.01u
TX-RX UNIT
X57-695X-XX L27
0-11,2-70 K,E 3.9u
0-12 K2 10u
VO VO
A3 SUB UNIT (RX VCO/PLL) (X58-4780-10)
L352
R351 R354 33
0 10u
-2.7dBm V-RXVCOL
C368 18p
FREQUENCY
RX-CV CONTROL
(TP101)
VCO OSC
Q350
R353 L353 D352 C356 L356 2SK508NV(K52)
10u 50n
0 1SV282 33p
CN350
GND 1 1 GND FREQUENCY
CONTROL
SRR 2 2 SRR
SRR
8CL 3 3 8CL
8CLR
CV 4 4 CV
L350
9CL 5 5 9CL R350
9CLR
0 10u V-RXVCOH
NC 6 6 NC
FREQUENCY C369 15p
CONTROL
Q351
L351 D353 2SK508NV(K52)
R352 C355 L357
0 10u 50n
1SV282 39p
FREQUENCY
CONTROL
VCO OSC
C318
R316 C320
1.5k
2.2u10 2.2u10
BUFFER
AMP
R309
R312 220
Q300
FIN 2SC4116(GR) 220 R306
R311
5C 22
22k
BUFFER
LDT AMP R310
R320 Q301 6.8k
EPT
2SC4116(GR)
1k
DP
CP
REF L300
C313 C316
3p 3p
L301 L302 C321
39n 39n
47p
BUFFER AMP
X2
IC2
16.8MHz
NJM4558E
1 8 1 4
R77
AOUT +V VC +VDC
2 7 47k
A-IN BOUT
3 6 2 3
A+IN B-IN GND OUT
4 5
-V B+IN
C84 0.01u
MB MB
MO MO
VO VO
TX SW
0.31V
Q11
D8
B:1.51V
DAN235K
E:0.75V
C:6.35V
C23 R106
R368
18p 0
33 CN351
BUFFER -6.2dBm C22
AMP R159
GND 2 8 GND Q11
2SC3120
Q355 220
2SC4215(Y) 10p
C379 VO 1 7 VO RF AMP
10p
R359
C374 Q12
1p 47
B:7.77V
E:7.09V
R160
DC SW C:7.80V
Q352 270
2SC4116(Y)
R362
Q12
4.7k 2SC4116(GR)
DC SW
R364
Q354
10k DTC114EUA
R91
4.7k Q12
DC SW RIPPLE FILTER
Q353
2SC4116(Y)
R357
R363 RIPPLE FILTER
270
4.7k C95 C100 Q13
2SC4116(GR)
15p 27p
Q8 Q9
2SC3120 2SC3357
RF AMP RF AMP
B:7.92V
E:7.23V
C:7.96V
PLL
IC300
SA7025DK
B:1.50V B:1.05V
E:0.72V E:0.62V
11 10 C:4.81V
C:6.15V
PHA AUXIN
12 9
VSSA RA
C306
13 8 0.01u
PHI REFIN
14 7 R305 C305
CN300
PHP VCCP R11 R7
15 6 0 1000p FIN 1 9 FIN
VDDA RFIN 22k 10k
16 5 C304 5C 2 10 5C CURRENT CONTROL
1000p
RN RFIN Q10
11 LDR
17 4 LDR 3 2SA1586(Y,GR)
RF VSS
18 3 R304 100 EPR 4 12 EPR B:5.37V
LOCK STROBE E:5.97V
19 2 R303 100 DP 5 13 DP C:1.53V
TEST DATA
20 1 R302 100 CP 6 14 CP
VDD CLOCK
REF 7 15 REF C3 C4
R301 100 C10
2p 0.5p
R3 C7 100p
R300 10
680 0.01u
R319 33
L8
B:1.05V
22n
Q1 E:0.26V
Q302
2SC3357 C:5.94V
2SC4215(Y) C325 5p
RF AMP
BUFFER
AMP
A1
W02-1939-05_8
L41
100n
L28 C90
10u 0.01u
R31
5.6
C20
CN1
100p
-99.5dBm
MB MB
MO MO
R144 22k 8T
C164 470p
R16 5CR
18
Q16 T:8.05V
T:1.04V Q18
DC SW 2SB1132(Q,R) R:0V DC SW 2SB1386(R)
R:0V 7.78V
T:0V
R:1.03V
R129
47k R130
47k
DC SW DC SW
DC SW
Q23 Q17
Q19
DTC114EUA DTC114EUA DTC114EUA
T:8.05V
R:0V
Q14
B:8.95V
E:8.29V
Q14
C:8.98V
5.03V 7.87V 5.06V 8.05V
RIPPLE FILTER IC3 IC11
NJM78L05UA NJM78L05UA
R123 Q14 R126
2SC4116(GR) 10 1 3
10 1 3
OUT IN OUT IN
2
2
VOLTAGE
VOLTAGE
REGULATOR
REGULATOR
8TC
8C
W/N
IC10 IC4
RIPPLE FILTER 7.88V 13.10V
TA7808F NJM7808FA 13.10V
R122 Q15 R127 8.07V
10 2SC4116(GR) 10
2 1 3 1
OUT IN OUT IN
3
VOLTAGE 2
REGULATOR
VOLTAGE
IC5
REGULATOR
AN8009M
13.09V
1 3
B:8.95V OUT IN
E:8.28V
C:8.98V 9.02V
2
VOLTAGE
REGULATOR
MB
MO
L33 L21
10u 10u
C108 C110 W5:1.08V D2 WIDE/NARROW
W4:1.08V DAN235K
SWITCH
N:0V
3p 3p C211
L29 L30 L31 CN3
R111 R22 -3.5dBm 0.01u
33n 33n 33n
5.6 470
C13 C14 C16 C17
W5:0V
2p 0.5p
2p 1p W4:0V
N:1.05V
L14
L34-4527-05 L17
L18
L9 L34-4526-05 L34-4526-05
56n
* XF2
44.85MHz
WIDE
R37
6.8k
L15 L16 L19
L34-4527-05 L34-4527-05
L34-4526-05
W5:1.07V
W4:1.07V
N:0V
D1
WIDE/NARROW
DAN235K
SWITCH
C37
0.01u XF1
C31
L12 L71-0513-05
Q2
2SC3357 44.85MHz
330n
330p
RF AMP NARROW
B:1.28V W5:0V
E:0.51V W4:0V
C:6.69V N:1.04V
W/N
CN2
-89.0dBm
TX-RX UNIT
X57-695X-XX C5 C11 C18 C19 C212 C213 XF2
2-70 E 6P 6P 6P 18P 5P 5P L71-0627-05
0-11 K 6P 6P 6P 18P 5P 5P L71-0512-05
0-12 K2 8P 8P 9P 22P 6P 6P L71-0512-05
+0.8dBm
8T
5CR
D/A SHIFT
IC6 IC7
CONVERTER REGISTER
M62354GP BU4094BCF
1
16 1 1 16
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
AO5 DI Q1 Q6 1
2
12 5 5 12
AO4 AO1 Q2 Q7 L39 3
L38 4
11 6 6 11
L37 5
AO3 AO2 Q3 Q8
L36 6
10 7 7 10
L35 7
NC2 NC1 Q4 Q'S
L34 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
220mV 26
25
24
23
22
21
DC SW
20
D7 1SS355
19
C162 0.01u 18
17
DC SW 16
D12 R137 1k 15
R138 1k 14
02DZ18(X,Y) 13
LDT
12
Q24 Q25 LDR
DTD114EK DTC114EUA R139 0 11
EPT
R140 0 10
DC SW DC SW EPR
R141 0 9
CP
R142 0 8
DP
R198 0 7
MB 6
MO 5
4
CN4 R60 C216 3
-62.5dBm 71mV 2
10k 470p 1
SURGE
L43 PROTECTOR
B:0.67V
E:0.07V
C66 D5
C:4.00V MA742 3.40V
DC SW
330p C78
Q26
DTC114EUA
0.1u
R83 C73
L23 NOISE
C60 C67 0 0.1u
DETECTION
1u Q7
0.01u 330p
2SC4617(S)
D13
NOISE AMP MA742
NOISE
DETECTION
Q3
C52 2SC3356(R24)
R65
B:0.77V
0.01u E:0V
4.7k
C:4.91V
RF AMP
FM IF
X1 SYSTEM
44.395MHz 7.87V
DC SW
Q5
C53 C58 W5:4.99V DTA144EUA
18p
1000p W4:0V
N:0V
L20
R50
15k 1u C64 0.1u
CF1 DC SW
D3 L24
L72-0366-05 Q27 Q4 Q6
DAN235K L34-4459-05
DTC144EUA DTC144EUA DTC144EUA
WIDE5kHz/
W5:4.97V
WIDE4kHz
W4:4.97V
D4 SWITCH
N:0V
D4 WIDE/NARROW
SWITCH Q4
WIDE/NARROW DAN235K
SWITCH WIDE W5:0V
WIDE/NARROW W4:0V
SWITCH
N:4.71V
CF2
L72-0376-05
R161 R162
470 470
NARROW
W/N
-117.0dBm
E04-0154-05
CN19
FINAL UNIT
(X45-3730-XX)
(A/2)-CN1
CN15
E40-5703-05
E
B FINAL UNIT
(X45-3730-XX)
B
(A/2)-CN5
CN16
E40-5632-05
GND
NC
8T
PC FINAL UNIT
FAS (X45-3730-XX)
FDT (A/2)-CN3
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