Kenwood NXR-710 Service Manual page 114

TX-RX UNIT (X57-7940-10)
CN700 13.54V TX VCO/PLL (E23-1278-05) RX VCO/PLL (E23-1278-05) R860
SB 3 13.6V
CONTROL UNIT CN807 CN808 CN809 CN811 CN812 CN813 0
(X53-4490-10) +B 2 VOLTAGE R861
-CN301 GND 1 REGULATOR
DC SW IC702 0
13.6V F700 NJM78M08FA-ZB 7.93V
+B 3 5A 2SJ506-E(S) Q702 1 3
IN oUT 80C
FINAL UNIT +B 2 GND
(X45-3920-10) GND 1 2 DC SW
(A/3)-CN203 Q500
50C SSM6L05FU-F 50ER
CN701 INT Ref:0V
DC SW EXT Ref:5.04V
Q703 SBC R524
RT1N141M-T111
100k
BUFFER AMP
80C IC500
14.51V TC75W51FK(F) C532
DC/DC CONVERTER 15V DC SW Q704 150C R715 R716 L701 150C_1 C503 C510 1 8 0.1u
SSM5H01TU-F 0.1u 0.1u 2 oUTA VDD 7 R528
0 0 10u IN-A oUTB DETECTOR
3 6 220k D503
VOLTAGE 4 IN+A IN-B 5 HSM88AS-E
REGULATOR R717 L702 150C_2 INT Ref:0V VSS IN+B
IC701 0 10u EXT Ref:4.94V C511
XC9101D09AKR 0.1u
1 8
7.65V EXT VSS
R703 2 LSEN 7 INT Ref:0V
R700 R701 0 3 VIN VoUT/FB 6 C715 1000p EXT Ref:2.81V
33 10 4 CC/GAIN 5 R711 12k C500 C501 R503 RF AMP
CE/SS CLK Q501
C714 180p 0.1u 0.1u 100 2SC4617(R)
DC SW LIMITER
7.92V
80C CPH3317 Q700 80R
C512
LIMITER 0.1u
R510
RF AMP
DC SW 22k Q503 C522
INT Ref:0V 3SK294-FP 100p
VOLTAGE SSM3K15TE(F) Q701 RXC EXT Ref:2.16V C507 C509 EXT Ref:G1:2.47V G2:2.27V INT Ref:0V
REGULATOR 0.1u 0.1u D:4.92V S:0.87V
IC700 50C
NJM78M05DL1AZB 5.08V 10MHz AMP
1 3 DC SW CPH3317 Q705 5.06V 50R
80C IN oUT
GND
2 VOLTAGE REGULATOR 50C
TK11230CMCL-G IC704
DC SW
Q706 1 VCoNT VIN 6
SSM3K15TE(F) 2 5 3.01V
GND1 GND2 33C
C723 3 NoISEPASS 4 30R
0.1u VoUT
3.25V
TK71733S IC703 3.27V 3.25V
1 VIN VoUT 5 33C OSC C504
2 X500 1000p
GND L77-3034-05 LPF 2.30V
3 oN/oFF 4 1 4 C505 AMP
NP/VREF VC VCC 0V C517 L501 R525 C530 R530
EXT Ref:10MHz/0dBm 0.1u 0.01u 4.7u 0 0.1u 470
VOLTAGE REGULATOR 2 3 C508 Q502
EXT_IN CN500 10MHz--> 10MHz--> 10MHz--> GND oUTPUT 0.01u 2SK3737-5
RF AMP
0.68V
TMP1 36 R800 0
TMP2 35 R850 0 EEPROM
RAMP FWD 33 34 M24C02-RMN6TP IC802
TXASSIST 32 TXASSIST R824
RXASSIST 31 RXASSIST TX_CV 100 5 SDA VSS 4
TX_CV RX_CV 29 30 RX_CV R825 6 3
GND 28 CN803 D801 SCL E2
TXVCOB GND 26 27 LDR DC SW TXVCOB DC SW 100 7 WC E1 2 RSSIOFS -->
RXVCOA/B 25 RXVCOA/B Q800 8 1
TXVCOA 24 TXVCOA SSM3K15TE(F) VCC E0
/RXPCS_TR LDT 22 23 R801 0 1SS388F D801 /RXPCS_TR LDT TEMPERATURE SENSOR
/16_8PCS 21 R802 0 /16_8PCS IC800
LDR 20 LDR MOD LM73CIMKX-0 3.28V 3.28V
SPSCLK0 /TXPCS 18 19 R803 L805 0 SPSCLK0 /TXPCS CN806 R816 4 3 L803 3.28V R841 R845
SPSD0 17 L806 SPSD0 SMBCLK VDD
GND SBC 16 15 SBC 100 5 ALERT GND 2 100 100k
MOD 14 R806 0 R817 6 1 R838
GND 13 SMBDAT ADDR 100
RSSI AGC 11 12 RSSI 100 CN810
33A 10 33A 33A R837 3.28V
/EWP 9 R807 0 /EWP /EWP R833 100 0
HWV1 I2CCK 7 8 R808 R809 0 0
SPSCLK1 6 R810 0 SPSCLK1 SPSCLK1 R834 100
I2CDA 5 R811 0 R835 100 VT2 --> R844
SPSD1 /IOCS 3 4 R813 R812 0 0 /IOCS SPSD1 SPSD1 /IOCS VT1 --> 100k
/EVCS 2 R814 0 /EVCS /EVCS
NC 1 50C
CN800 1 15
R819 R821 2 So I/O EXPANDER GP6 14
68k 390k DIGITAL A1 GP5
R830 R832 POTENTIOMETER 3.28V 3 A0 MCP23S08TE/ML IC805 GP4 13
CN801 OP AMP 5.07V IC804 4 12
GND 11 ASWC TC75S51FE(F) IC801 5.08V 330k 68k ANALOG SW M62364FP-F RESET GP3
CN805 IC803 IC806 R840 5 CS GP2 11
8TC 10 8TC R818 1 5 TC75W51FK(F) TC7W53FK(F) 100
RAMP 9 1k 2 IN+ VDD 8 1 4 5
VSS VDD oUTA GND A R855
ASWC 8 R820 3 IN- oUT 4 7 oUTB IN-A 2 3 VEE CH1 6 0 W_/N
FAN 7 6 3 2 7 R853 VN_/N
47k IN-B IN+A INH CH0 CN814
FDT 6 R827 5 IN+B VSS 4 1 CoMMoN VCC 8 0
TMP2 5 R815 0 10k
TMP1 4 R851 0 BUFFER AMP MB --> MO -->
PLIM 3 3.27V
H/L 2 R831 EVOL 1.64V
56k
HWV2 1
MOD --> MOD -->
450kHz AGC AGC
140mVrms CN804 ASWC FAN ASWC FAN
PLIM PLIM
CONTROL UNIT CN802 <-- 450kHz <-- 450kHz <-- 450kHz
(X53-4490-10)
-CN39
VT2 -->
VT1 -->
50ER
OP AMP C541 0.1u
IC501 C542 10u DC SW
TC75S59F-F
3 4 UPA672T-A Q507
IN+ oUT
2 19.2MHz or 10MHz --> 19.2MHz or 10MHz -->
1 VSS 5
IN- VDD
C549 LDT
R539 0.1u
100k R536 R544 33C
100k
2.7k LDT
Q505 CN600 C608
SSM3K15TE(F)
DC SW 0.01u
DC SW DC SW
Q601
SSM3K15TE(F) Q600 R605 2SA1832(GR)F L601
0 10u
R607
100k 16.8MHz MOD PLL
C534
5p 33C
C525 C528 RF SW BUFFER 16.8MHz PLL
47p 120p D504 IC600 ADF4001BRUZ IC602
JDP4P02AT TC7WH126FU-F
L502 L503 C544 1 8 9 8 3.26V C610 R611
680n 560n 0.1u SPSCLK0 L613 2 G1 VCC 7 R608 10 DGND REFIN 7 C611 0.01u 100
A1 G2 CE AVDD
3 Y2 Y1 6 R683 0 100k 11 CLK RFINA 6 0.01u C613
4 5 R684 0 12 5 C612 0.01u
GND A2 DATA RFINB
LPF DC SW INT Ref:5.07V RF SW R685 0 13 LE AGND 4 0.01u
EXT Ref:0.15V D505 SPSD0 L614 R606 14 MUXoUT 3
SSM6L05FU-F Q506 L507 JDP4P02AT CPGND
R541 100k 15 DVDD CP 2 R613
100 33u 16 1 R609 0
3.27V VP RSET 4.7k
BUFFER
C606
TC7WH126FU-F IC601
R547 10u
4.90V 1 G1 VCC 8
1.8k 1dB ATT /16_8PCS R602 2 7
A1 G2
R548 100 3 Y2 Y1 6
L505 1.8k 4 5
1.2u GND A2
C537
RF AMP 0.1u L506
Q504
2SC4617(R) 1.2u R549
1.8k 50C 50C
1.64V 1dB ATT
R550
1.8k
MB --> MB --> MB --> MB -->
MO --> MO --> MO --> MO -->
RSSIOFS --> RSSIOFS -->
5.04V 3.27V
50C R401
22
33C
C407
R450 1000p IF SYSTEM
NJM2287V IC403
56k BUFFER AMP C418 C421
IC409 IC401 3.17V 1000p 14 Lo_DEC 1 1000p
TC75W51FK(F) 3.27V TC75W51FK(F) 3.26V R420 C416 13 RF_DEC 2
1 8 C440 Lo_IN RF_IN
RSSI R402 2 oUTA VDD 7 R451 0.1u R417 22 47 0.01u 12 V+1 3 C423 0.01u -88.4dBm
IN-A oUTB R418 22 11 V+2 GND1 4 450kHz -->
100 3 6 100k R452 MIX_oUT 5
4 IN+A IN-B 5 220k <-- RSSI 10 RSSI C424
VSS IN+B C417 9 IF_oUT GND2 6 0.1u C425
BUFF & DIFF AMP 0.1u 8 GC_IN IF_IN 7 0.1u
8TC 3.26V
33C BUFFER AMP IF_DEC C422
RXC R400 R404 0.1u
R453 AW:-72.2dBm
3.17V 220k 0 22 AN:-72.9dBm
C403 VN:-75.6dBm
0.1u
IC402 AGC -->
LMC7101BIM5
IF AMP OP AMP
IC400
MO --> MB --> AD8051ART
1.62V L72-1028-05 CF400
C400 C408 R415 R421 <-- 450kHz
0.1u 0.1u 0 1.8k
AGC AGC
ASWC FAN 33C 33C 33C
W_/N W_/N W_/N W_/N
<-- 450kHz VN_/N <-- 450kHz VN_/N VN_/N VN_/N
19.2MHz --> 19.2MHz --> 19.2MHz --> 19.2MHz -->
19.2MHz --> VT2 --> 19.2MHz --> VT2 --> 19.2MHz --> VT2 --> 19.2MHz --> VT2 -->
VT1 --> VT1 --> VT1 --> VT1 -->
16.8MHz--> 16.8MHz-->
50C
SUB UNIT (TX VCO/PLL) (X58-5080-10) (B/2)
4.96V
OSC MB_CV2 SSM6L05FU-F Q350 VCOA:7.07V
CN602 1.48V R361 VCOB:0V
LPF X600 R350 33
C616 C620 3.02V <--16.8MHz L77-1960-15 470k R354
47p 18p 470k D352,355,358,359 V-TXVCO A
L604 L605 C623 C636 R632 C641 3 oUTPUT GND 2 FREQUENCY
4.94V 1.70V 2.37V Q603 0.01u 1.8k 0.01u DC SW CONTROL
330n 390n 0.01u Q602 2SC4617(R) 3.27V L350 VCO OSC
2SC4617(R) C630 R625 C633 RF AMP 4 VCC VC 1 VCOB:0V VCOA:3.30V R357 C354 D355 C362 MCH3914(8)-H Q352
RF AMP 0.01u 220 0.01u 0 10u 1000p 1SV282-F 22p
DC SW
1.16V Q351
33C SSM6L05FU-F L354
2.2u
R351 470k
R373
470k
VCOA:0V R362
3.26V CN350 VCOB:3.30V 33
C642 GND 1 1 GND L365 VCOA:0V
DC SW VCOB:7.07V
0.1u 7.93V 7.27V TXVCOB TXVCOB 2 2 TXVCOB R353
R615 R620 R649 2SC5383-T111 Q605 80C_1 80C_1 3 3 80C_1 0 V-TXVCO B
27k 0 0 TXVCOA TXVCOA 4 4 TXVCOA 3V VCO OSC
7.91V TX_CV 5 5 TX_CV R358 L351 C355 D357 C363 Q353
OP AMP OP AMP 10u MCH3914(8)-H
IC603 IC604 R651 MO 6 6 MO 0 1000p 1SV282-F 22p
TC75S51FE(F) LMC7101BIM5 1k TXASSIST 7 7 TXASSIST
Vref R616 1 5 L355
Vref --> IN+ VDD
CN601 MB 10k 2 VSS 2.2u
R617 3 4 R629 80C
IN- oUT R355 C350 L366
100k 100k 10k 0.1u
C631
D353,357,360,361
10p FREQUENCY CONTROL
R624
220k SUB UNIT (TX VCO/PLL) (X58-5080-10) (A/2)
R312
47
4.94V
R325 C323 L309 C330 C332
0 3p 68n 5p Q300
2SC5636 1000p
R331 BUFFER AMP
R634 R637 33C 0
47k 47k
OP AMP MO
IC605 CN603 C649 L300 R301 R303 R305
TC75S51FE(F) 1.63V TX_CV R308 10
C638 1 5 3.27V R642 0.1u 390 0 0 R310 1k
IN+ VDD 5.08V C314 1u25
1u 2 VSS 100k C315 100p
3 4 3.21V C316 100p
IN- oUT OP AMP C317 0.01u
IC606 C318 100p
LMC7101BIM5 R311 10 L312
25
7 GND
C308 0.01u 8 NC Max_out 24
Vref --> R643 /OSC_AC_GND 23
C333 R327 L303 C309 9 PLL Mod_in
100k 0.01u 0 1.2u 0.01u 10 OSC IC300 Clock 22
OSCout SKY72300-362 21
C310 11 /CS
0.01u 12 VCC_SOC Data 20
GND_OSC VCC_digital 19 L313
3.25V 3.21V
450kHz --> 450kHz --> C320 100p
3.26V C321 100p
R429 33C
22 C429
R425 W:3.28V
18k 3.25V 0.1u N:0V
ANALOG SW VN:0V ANALOG SW
W_/N
IF AMP TC7W53FK(F) IC405 TC7W53FK(F) IC407
3.27V 16.8MHz-->
MCP6021-E/OT IC404 1 CoMMoN VCC 8 L72-1028-05 CF401 5 A GND 4
2 7 R433 R442 6 3
3 INH CH0 6 0 820 7 CH1 VEE 2 R658
VEE CH1 CH0 INH
4 5 8 1 R447 C439 CN604 10k
C428 R431 GND A WIDE VCC CoMMoN 0 0.1u TX_AST
0.1u 0
W:3.28V DC SW DC SW
C430 VN:3.28V N:0V C438 14.50V Q604 13.87V D600
AW:-98.4dBm AN:-99.0dBm 2SC5383-T111 R646 OP AMP DA221
VN:-100.2dBm 0.1u VN_/N 0.1u
ANALOG SW ANALOG SW 0 LMC7101BIM5 IC607
L72-1027-05 CF402
TC7W53FK(F) IC406 R434 R443 TC7W53FK(F) IC408 1 OUTPUT V- 5 R656
14.46V 2
1 CoMMoN VCC 8 0 820 5 A GND 4 V+ 10M
2 7 6 3 R647 3 4 R655
3 INH CH0 6 NARROW 7 CH1 VEE 2 1k INPUT+ INPUT- 390k
VEE CH1 CH0 INH
4 5 CF403 8 1
GND A R435 L72-1041-05 R444 VCC CoMMoN
TC75W51FK(F)
0 1.2k TX ASSIST
33C VERY NARROW
W_/N
VN_/N
19.2MHz --> 19.2MHz -->
19.2MHz --> VT2 --> 19.2MHz --> VT2 -->
VT1 --> VT1 -->
SUB UNIT (RX VCO/PLL) (X58-5070-10) (B/2)
SSM6L05FU-F Q350 VCOA:6.94V
7.05V R361 VCOB:0V
R350 33
470k R354
470k D352,355,358,359 C370
FREQUENCY C380
DC SW CONTROL 3p VCO A 8p Q352
L350 Q352 VCO OSC
R352 R357 C354 D355 C362 L358 MCH3914(8)-H
0 0 10u 1000p 1SV282-F 33p 50n
L607 DC SW 7.09V
47n Q351
CN351 SSM6L05FU-F L354
GND 2 2 GND 10u
C378 R372 Vo 1 1 Vo L608 R351 470k CN351
GND 2 2 GND
Q354 12p 0 47n C378 R372 Vo 1 1 Vo R247
2SC5636
BUFFER AMP R362 10p 0 18
CN350 VCOA:3.3V VCOB:0V 33 VCOA:0V Q354 2SC5636
GND 1 1 GND L365 VCOB:6.94V
Q353 BUFFER AMP
NC 2 2 NC
80C_2 3 3 80C_2 C371 VCO OSC
C381 VCO B 8p
RXVCOA/B 4 4 RXVCOA/B 3V 3p Q353
RX_CV 5 5 RX_CV R358 L351 C355 D357 C363 L359 MCH3914(8)-H
NC 6 6 NC 0 10u 1000p 1SV282-F 22p 50n
R374 RXASSIST 7 7 RXASSIST
0 L355 R374
0
R377 10u
0 R377
L366
0
D353,357,360,361
FREQUENCY CONTROL
150C_1
SUB UNIT (RX VCO/PLL) (X58-5070-10) (A/2)
R312
33
4.94V
R322 R324 R325 C323 L309 C330 C332 R322 R324
8.2 8.2 0 3p(B) 39n 4p(B) Q300 10p 8.2 8.2
2SC5636
R331 BUFFER AMP
0
50R
3V
L310 L300 R301 R303 R305 L310
RX_CV R308 10
390 0 0 R310 1k
C326 100p 5.07V C314 1u25 C326 100p
C315 100p
3.24V C316 100p
C317 0.01u
C318 100p
R313 47k R311 10 L312 R313 10k
25
7 GND
CN303 C308 0.01u 8 NC Max_out 24 CN303
FIN 1 1 FIN /OSC_AC_GND 23 R314 4.7k FIN 1 1 FIN R248 FIN
C333 R327 L303 C309 9 PLL Mod_in
R315 100 SPSCLK0 2 2 SPSCLK0 L615 SPSCLK0 0.01u 0 1.2u 0.01u 10 OSC IC300 Clock 22 R315 100 SPSCLK0 2 2 SPSCLK0 18
R316 10 /TXPCS 3 3 /TXPCS R663 0 /TXPCS OSCout SKY72300-362 21 R316 10 /RXPCS_TR 3 3 /RXPCS_TR R217 0 /RXPCS_TR
C310 11 /CS
R317 100 SPSD0 4 4 SPSD0 L616 SPSD0 0.01u 12 VCC_SOC Data 20 R317 100 SPSD0 4 4 SPSD0 L213 SPSD0
C335 100p 33C 5 5 33C 33C GND_OSC VCC_digital 19 L313 C335 100p 33C 5 5 33C 33C
50C 6 6 50C 50C 50C 6 6 50C 50C
3.27V 3.24V
LDT 7 7 LDT LDR 7 7 LDR LDR
REF 8 8 REF C663 C320 100p REF 8 8 REF C212 R220
3.29V C321 100p
3.27V 0.01u 3.27V 0.01u 100
5.07V 5.07V
50R
16.8MHz--> 19.2MHz --> 19.2MHz -->
80C_2
CN606 CN200 RX_AST
TX_CV RX_CV CN201
C660 C202
10p 10p 33C
R659 R202 R204 DC SW DC SW DC SW
220k 5.07V 10k 220k 5.07V 7.93V 7.17V 14.50V 13.87V D200 BUFFER
R665 R208 R214 2SC5383-T111 Q201 2SC5383-T111 Q200 R203 DA221
TC7SH126FU-F IC203
0 0 0 0 LMC7101BIM5 IC201
/TXPCS 1 G VCC 5
1 OUTPUT V- 5 R213 SPSCLK0 L212 2
R216 14.46V 2 INA
1k V+ 10M 3 GND oUTY 4 R250
7.85V R205 3 4 R212 50C 0
1k INPUT+ INPUT- 390k
OP AMP
IC608 TC75W51FK(F) IC200
AF AMP OP AMP RX ASSIST
19.2MHz -->
19.2MHz --> VT2 --> 19.2MHz --> VT2 --> 19.2MHz --> VT2 --> 19.2MHz --> VT2 -->
VT1 --> VT1 --> VT1 --> VT1 -->
AMP
3dBm R:7.96V 1dB ATT
RF SW T:4.26V
C680 C667 L609 C674 R672 C685 D601 C679 R681
7.82V
1000p 3p(B) 15n 2.12V 22p 18 1000p HVC131 1000p 5.6
Q606
2SC5636
RF AMP
1.42V
DC SW
SSM3K15TE(F) Q607
7.90V
8TC
80C
BPF
-110.8dBm -108.0dBm 7.31V
C160 C101 C105 L102 C115 C161 C124 R137 LNA
1000p 1000p 10p(B) 270n 10p(B) 1000p 27p 0 BPF
3.61V -122.0dBm
D100,101 D103,104 RF AMP L109 C130 R125 R128 R129 C134 C138 L113 C147 C151 L116
Q101 2SC5337
FREQUENCY FREQUENCY CONTROL 22n 1000p 0 0 0 1000p 10p(B) 270n 10p(B) 1000p 9T
CONTROL 2.85V
D105,106 D107,108
FREQUENCY FREQUENCY
CONTROL CONTROL
<-- 136-174MHz
FL:3.19V
FC:4.44V FH:7.21V R111 R112 R132 R114
100 100k IC100 IC101 100k 100
LMC7101BIM5 LMC7101BIM5 FL:2.72V
14.50V DC SW 13.82V 1 OUTPUT 5 1 OUTPUT 5 FC:4.22V FH:6.74V
Q100 V- 2 V-
2SC5383-T111 2 V+ V+
3 4 3 4
INPUT+ INPUT-
INPUT+ INPUT-
OP AMP
14.44V OP AMP
VT2 --> VT2
VT1 --> VT1 --> VT1 -->
136-174MHz --> 136-174MHz --> 136-174MHz -->
4.93V
LPF 3dB ATT
L208 L209 L210
C237 R238 R244 194.05-232.05MHz --> C322
8p(B) 0 33n 33n 33n 18 1000p
1'st Lo AMP
1.32V
R249 C224 R231 C229 L211 R224 RF AMP
2SC5636 Q203
18 1000p 18 1000p 15n 22
1.24V ADL5350ACPZ
3.00V
30R R320
22
80R R316
10
C222
0.01u
IF AGC AMP
X3 C223 CN205
BPF MCF
0.01u -94.7dBm 4.90V
C228 <-- 58.05MHz C300 XF300
100p 2.24V -113.6dBm L71-0649-05 -101.4dBm 7.21V
5.04V R229 C225 L205 C233 C234 C347 27p 3SK294-FP Q300 C304 C356 C318 R323 OUT IN L310 C329 C342 R311
0.72V
R223 C220 Q202 0 12p(G) 47n 47p 47p 15p(G) RF AMP 0.01u 10p 27p(G) 150 330n 0.01u 18p 10 2.26V
2SC5636 0.82V RF AMP
180 0.01u RF AMP Q301 R312
0V 2SC5337 10
1.53V
C832 R302
3.44V
5p 47k
0dBm
136-174MHz -->
C683 CN610 FINAL UNIT
(X45-3920-10)
1000p (A/3)-CN1
GND SPRING
CN102 CN106
-118.0dBm
L117 L118 CN101
RX ANT
9T 9T
136-174MHz -->
3.3dBm
L308 C331
2.2n 1000p
MIXER
IC300
L309
100n 2.76V
R332
47
IF POST AMP
-115.7dBm
L320 C338
180n 0.01u