Schematic Diagram - Kenwood NX-340 Service Manual

SCHEMATIC DIAGRAM

TX-RX UNIT (X57-8510-10 (NX-340_K, NX-340(U)_K, NX-340_M), X57-8510-11 (NX-340_K2, NX-340(U)_K2, NX-340_M2, NX-340_M3, NX-340_P), X57-8510-12 (NX-340-K3))
X57-851X-XX CP401 CP402 D5 D9 L4 L15 L16 L26 L27 L204 L211 L407
L405
6.8n 15n 18n 8.2n 180n 8.2n 1.2n (-92) 15n 15n
0-10 RK75HA1J474J RK75HA1J474J 1SV325F 1SV325F
0-11 RK75HA1J474J RK75HA1J474J 1SV323F 1SV323F 15n 22n 22n 6.8n 270n 10n 1.5n (-92) 12n 12n
0-12 RK75HA1J104J RK75HA1J104J 1SV323F 1SV323F 15n 33n 33n 6.8n 270n 10n 2.7n (-92) 12n 12n
X57-851X-XX C265 C266 C267 C268 C270 C271 C272 C273 C274 C275 C276 C279 C280 C429
5p 270p 4p 6p 100p 0.75p 2p 6p 0.3p 1p 3.5p 10p
0-10 2.5p 1.5p
0-11 3p 4p 7p 470p 3p 5p 30p 1.5p 4p 6p 1p 2p 3.5p 9p
0-12 8p 6p 8p 470p 3p 6p 30p 3p 4p 11p 0.3p 4p 0.5p 8p
TX-RX UNIT (X57-851X-XX)
10
PLL SYSTEM
5.0V
R53
C84 0
0.01u
R56
C83 100p
10
C86
0.01u
1 C87
CPVDD PVDD 18
2 100p
TEST4 RFINP 17
3
C88
TEST1 IC2 RFINN 16
C89 100p
4 AK1541
LE VREF2 15
0.22u
5
DATA DVSS 14
C90
6
CLK VREF1
CP1 13 0.22u
9
R51
1k
X1 3.3V
L77-3128-05 3.3V
16.8MHz R10
1 VCoNT 100 R16 R17
VCC 4
0
C16
R4 L1 R8
2 GND
oUTPUT 3 4.7u
0 330 0.01u
(-39)
C22
270p
C23
0.01u
1.65V
33MS
8
CVIN
R2 R7 Freq
330k 0
CVIN
*R9 MOD1 CV
R3
0
PLL_LD
PLL_DATA
PLL_LE
PLL_CLK
VOLTAGE PREVENTION
7.5V
L600 F600
+B
B
F53-0324-15
7.5V
GND
F601
7
VOLUME
F53-0319-15
CN600
1 VOLOUT
0.6V
2 VOLIN
16.8MHz
3 SB
R614
4 BATT
820k
5
(D) KTC4080E-P
6 B
7 VOLGND VOLIN
8
EN2
9 Q603 R404
EN4
SSM3K127TUT MINVOL
10 560k
GND
DC SW(MIN VOL)
11
EN3 EN2
12 EN4
EN1
EN3
EN1
SELECTOR
IC601
7.4V XC6209B502P-G
4 VIN
CE 3
6 VSS 2
5 VoUT
NC 1
50M
5.0V
VOLTAGE REGULATOR(50M)
50M
R:0V
Q601
T:5.0V
SSM6L36FE
50T
5TC
R:0V
T:3.3V
DC SW(50T)
R:5.0V
Q602
T:0V
SSM6L36FE
50R
5RC
R:3.3V
T:0V
IC606
XC6209B332M-G 3.3V
DC SW(50R)
1 VIN
VoUT 5
2
5 VSS
3
VOLTAGE CE
NC 4
REGULATOR(50C)
IC602
VOLTAGE REGULATOR(33R)
MM1856A50N
1 VIN 50C
VoUT 5
2 GND 5.0V
50C
3 CoNT
NC 4
50CC ON:3.3V
50CC
IC603
XC6209B502P-G
50VC ON:3.3V
4
VIN CE 3 50VC
VSS 2
5 VoUT NC 1
5.0V
VOLTAGE REGULATOR(50V)
50V
VOLTAGE DROP
CN903
IC604
VOLTAGE
4 D600 MM1856A33N CN904
REGULATOR(33M)
RB521S-30-TP
1 VIN 33M C989
VoUT 5
2 GND 3.3V 0.1u
D
3 CoNT
NC 4
Q606 3.3V
SSM3J36TUT 33MS
C983 1000p
DC SW(33MS)
ON:0V RESET D C999 0.1u
33MSC
R613 R616 R710
100k 0 3.3V
1k
R709
2.2k
C719 1000p
C718 0.1u
VCC
D
INT C982 1u
IC600
IC605
XC61CN4502N-G RESET C907 0.01u
BU4830F
R960 0
C908 1u
C906 0.01u
VOLTAGE
3
DETECTOR(RESET)
R702
INT 10k (D)
3.3V
R711
R609
INT
10k (D)
1k
SB
50VC
7.4V
VOLTAGE DETECTOR(INT) 33MSC
SB 5RC
5TC
BATT
RSSI
BUSY TX BLUE
GREEN RED
Q605 BLUE LED
(BUSY) (TX)
LTC014EEBFS8 ON:3.3V
BLULED
Q600 DC SW
LTC014EEBFS8
(BLUE LED)
GRNLED
2
Q604
LTC014EEBFS8
R:0V
DC SW
T:3.3V R703
(BUSY LED)
DC SW(RED LED)
L601
PTT PTT/RXD
Side1
PF1
Side2 PF2
PTT
GND
Side1
Side2
1
A B C
L408 L417 L420 R9 R25 R31 R32 R33 R35 R36 R42 R44 R211 R213 R214 R227 R236 R239 R417
18n 56n 18n 390k 1M 33k 4.7k 120k 68 150 6.8k 22 1.5k 22 560 27k 15 18k 680k
27n 68n 8.2n 390k 10M 150k 3.3k 56k 150 220 12k 22 1.5k 22 560 18k 150 18k 560k
27n 68n 8.2n 330k 10M 150k 3.3k 56k 100 220 12k 100 820 33 330 18k 330 15k 560k
C430 C434 C436 C438 C439 C440 C445 C448 C449 C450 C451 C452 C455 C456 C457 C459 C460 C469 C470
1p 2.5p 5p 2p 1.5p 2p 1.5p 11p 2p 270p 11p 0.75p 270p 11p 2.5p 100p 0.3p
2p 0.75p
- - 8p 3p 5p 3.5p 1.5p 24p 3p 270p 1p 24p 1p 270p 24p 3p 270p 2p
3p
2p - - 8p 3p 5p 7p 2.5p 39p 3p 0.1u 2p 39p 2.5p 0.1u 39p 4p 270p 3p
2.7V
R28
1k
* C41 R30
C30 L4
(-71)
10p 150k 0.5V
270p *C37
Q2
2SC5636
PLL FIN AMP
R:3.8V(F1)
4.0V(F2) 2.5V(F1)
T:0V 3.0V(F2)
L18 R37
CV(A) 2.7V(F3)
2.1V(F1)
270n 10
(-53) 2.7V(F2)
RF AMP
D4,7 BUFFER AMP 2.3V(F3)
Q10
RX VCO Q9
RX VCO TUNE 2SC5636
C60 2SC5636 C72 C74
R20 L3 D7 *C46 * L16
R19 L7 *
33p 15p
180n
0 390 0 1SV325F Q5 * C68 (B) (B)
(-53) (-14) MCH3914(8)-H
R40
150k
RX ASSIST 4.98V
L19 R38
D5,9
TX VCO TUNE TX ASSIST MODULATION 270n (-53) 10
*D9 *C47 * L15 3.5V(F1)
L8 180n *C61
4.1V(F2)
(-53)
Q6
(-14) MCH3914(7)-H C66
5.0V
0.5p
DC AMP(CV)
IC3
BD7542FVM
1 oUT1 *R31 TX VCO TX/RX VCO
VDD 8 DC SW
2 IN1-
oUT2 7 Q8
3 IN1+ DC SW(ASSIST)
R:0V
IN2- 6 SSM3J36TUT
4 T:3.9V(F1)
VSS Q1 Q8
IN2+ 5 4.0V(F2)
SSM3J36TUT RIPPLE FILTER CONTROL
Q4 Q7
KTC4075E(Y,GR) L17 SSM6L36FE
R24 R27 Q3
RE1C001UN
470k 10k
C33
R:0V
0.01u T:3.3V
50C
Q1 CONTROL
AsstSW
+B
50T
R860
0
50R
50C
R:4.8V
T:0V
FM-IC
C407
39p
R400 C404
22p L401
330k IF SYSTEM 3.2V 3.2V
(-71)
100n
Q400
C422 R418
0.6V XF400
TRIPLER(2ND LOCAL) R441 L71-0684-05
560k
47k (D) 9 C493 0.01u 49.95MHz
BIAS LoIN 32 100p C426 C432
R419 R420
C497 10 C492 100p 1ST IF AMP
NRECTo LoCAP 31
0.01u 120 100 0.01u
0.1u 11 C491 1u Q403
NAMPo AGNDIN 30
KTC4075E(Y,GR)
12 C489 1u
NAMPI AGNDoUT 29
AK2365A
R405 C412 R407 13
AUDIooUT IC400 BUSY
R460 1M AVSS3 28
470k 56p 3.3k 14 C488
DISCoUT VREFD 27
C485
15 0.22u
PDoUT DVSS
1000p 26
16 C487
1800p RSSIoUT DVDD
R449 220k 25
C413 0.1u
RSSI
C486
10u
50M
APCSW
DCSW
MOD1
Freq
CVADJ
VOLIN
VOLOUT
EN2
EN4
EN3
EN1
50C
50V
INTSPMT
PLL_LD
33M
IC700
EX25064ATA00A
1 S
VCC 8
2 Q
HoLD 7
D 3 W
C 6
4 VSS
D 5
R977
10k
D
EEPROM
C984 CN907
1000p
C905
D
0.1u
C986
1000p
1 C911
MINVOL VDD5 75
0.1u
2
DCSW VSS3 74
C912
3
APCSW VCAP_2 73
2.2u
4 D
TEST_1 SWDIO 72
CN908
5
TEST_2 OPT2
71
6
VBAT PLL_LD
70 R979
7 R736 100
BLUELED RXD
69 10k
8 R740
BSHIFT TXD
68 TXD 4.7k
9
INTSPMT OPT3
67
10
VSS1 EN4
66
11
VDD1 EN2
65
12
XIN EN3
64
13 IC710
NC EN1
STM32F405VGT6 63
14
NRST FM_PDN
62 CP23
15
LSDI MCU
PF2 61
16
HSDDEC R737 100
PF1 60
17
VOX PTT 59
18
OPT4 FM_SDATA 58
19
VDD2 FM_SCLK
57
20
VSSA FM_CSN
56
21
VREF+ FM_RSTN
55
22
VDDA CML_RDATA
54
23
5CC CML_CDATA
53
24
CVIN CML_SCLK
52
25
EMPTT CML_CSN
51
CP24
C970
1000p
C971
0.1u D
D
D
VOLTAGE REGULATOR(33B)
IC703
7.4V 3.3V
1 VIN
R901 47k VoUT 5
2 GND
R902 47k
GRNLED 3 CoNT
REDLED NC 4
33MA
33MD CN901 CN902 MM1856A33N
EMPTT 37
DVSS3
38
VDEC2
PF1 39
XTAL/CLK
PF2
40
XTALN
3.3V R744 L701 41
DVDD
15
42
CDATA
R777
R748 43
100k RDATA
0 44
15k 3.3V SSoUT
C734 45
D DVSS4
10u 46
SCLK
47
R720 SYSCLK2
R903 22 48
X2
33MM CSN
0 19.2MHZ
33MD BSHIFT
L77-3129-05
ON:3.3V
IC715 MM1856A33N IC713
OFF:0V 1 VCoNT SM5023CNDH-G
EPSI_CML
1 VIN VCC 4
3.3V 1 INHN R905 EPSCLK_CML
VoUT 5
2 GND C914 XTN 6 EPSO_CML
0.01u 470k
2 GND 2 XT
3 CoNT oUTPUT 3 VDD 5
R904
NC 4 3 VSS
D D Q 4
82
D D
VOLTAGE
REGULATOR(33MD) CRYSTAL OSCILLATOR AMP D
R725
LSDO
47k
7.4V
HSDDEC/MOD2
CML_IRQ
HSDENC
MIC_MT
VOX
33M
PTT/RXD
SB
D E F
R430 R435 R436 R438 R439 R775 R776 R778 R797 R798 C35 C36 C37 C46 C47 C48 C49 C54 C55
470k 180 470k 100k 82k 0 - - 270k 120k 8p 1u 3p 22p 7p 10p 0.75p 0.75p
56p
470k 180 470k 100k 180k - 0 - 330k 150k 8p 0.1u 3p 100p 20p 4.5p 8p 3p 1p
100k 270 33k 56k 470k - - 0 330k 150k 10p 0.1u 4p 100p 20p 4p 10p 3p 1p
TH400
C471 C472 C473 C474 C475 C476 C478 C480 C481 C482 C812 C816 R413 C415 C416 C492 C493
11p 270p 4p 4p 11p 1.5p 30p 9p 5p - - -
NCP18WM224J03 180k 10u 10u 100p 100p
24p 270p 3.5p 3p 24p 6p 33p 27p 6p 5p 270p 270p
NCP18WM224J03 180k 10u 10u 100p 100p
33p 0.1u 4.5p 4p 33p 6p 33p 39p 27p 10p 270p 270p NCP18WM224J03 180k 10u 10u 100p 100p
TH_DET
TX(UHF)
PRE-DRIVE AMP
DRIVE AMP
FINAL AMP
R210 R212 C228
Q206
100p
1k 1.8k RFM01U7P
* D14,15 R:0V
C79
TX/RX SW T:0.7V
C216 R217 C219 L207
2.1V Q201
* 5.6 12n
* C81 2SC5455-A 270p (-71)
*L26 D15 R254 R202 C202 *C207 *C208
1SS390 0 0 *
(-71) R:0V
T:1.5V
H:1.4V(F1)
2.1V(F2)
2.5V(F3)
L:0.9V(F1)
1.0V(F2)
1.3V(F3)
H:3.5V(F1)
4.2V(F2)
4.9V(F3)
R:0V L:2.3V(F1)
1.9V(F2)
T:4.9V
2.4V(F3)
50T
OVER VOLTAGE PROTECTION
R223 R235
DISCHARGE SW 560 1.8k
Q203
LTC014TEBFS8
R237
150k
(D)
R238
150k
(D)
R:3.4V(F1)
3.5V(F2)
T:0V R:0V
Q205
RE1C001UN T:3.4V(F1)
3.5V(F2)
APC CONTROL SW
R422 *L405 *L407
4.7k
(-71) (-71)
*C436 *C439
RX(UHF)
BPF
R:5.0V
T:0V
L412
50R
L406
220n
(-53) R:1.8V(F1)
R:3.0V RX RF AMP
1ST MIXER T:0V
R423 *C450 * C452 * C456 C458 Q405 T:0V
R429 C447 C461 R434 BB506CFS-E
Q404
2.2k
BB506CFS-E 0 270p 1.5p 270p 10
C437 R440 C469
C444 R:3.1V
270p *
T:0V 0
15p
R:4.7V(F1)
RX BPF RX BPF RX BPF
4.1V(F2)
TUNING TUNING TUNING 5.0V(F3)
T:0V
RX BPF TUNING
R824
BPF1
1k
R970
0
C920 0.1u RXO
5.0V
C921 0.1u RXI CN912
TXO
C922 0.1u
TXI
C923 0.1u
R991 100
OPT1
R992 100 OPT2
R993 100 OPT3
0-10
(450-520:5W)
R994 100 OPT4
C736 R995 100 OPT5
0-11
270p
R996 100 OPT6 (400-470:5W)
R997 100 OPT7
0-12
(350-400:5W)
3.2V
DC AMP(BPF TUNE)
C853
0.1u
IC717
BU7465HFV
1 IN+
VDD 5
2 VSS
3 IN-
oUT 4
R850 R852 R853
0 12k 12k
C852
1500p
AUDIO BUFFER AMP
INTSPMT
PTT/RXD1 TXO
EXTSPSW
EMPTT
INTSPSW
OPTDET
50M
VOLIN
5.0V
33M
VOLOUT
$R985
$R986 RXI
Q708
LTC014EEBFS8
R983 R984
3.2V
0 0
C741
10u
C756
C740 R768
0.1u 10k 1u DC SW
C742 (EXT PLL)
270p Q703 VOLOUT
R765
27k
Q707
R766 UPA672T-A SB
UM6K34N
330k
MoD2 LEVEL SHIFT(RXD)
24
MoD1
23 LEVEL SHIFT(TXD)
MIC AGC AMP
AVSS1
22 R789 INTSPSW
R773 C763 0.047u C775
MIC
21 10k AF DETECTOR(MIC) 10k 0.1u
Q705
MICFB D700
20 RB706F-40 2SC4116(GR)F
MIC AGC
ALTFB R770 C758 R784
IC705 19 120k 4.7u C760
CMX7141 12k $R989
ALT
18 0.47u 50M
R826
BASEBAND SYSTEM PTT/RXD
DISCFB 17 100k MIC
D701
DISC 16 R769 C761
100k R785
TXENA 15 0.47u TXD_OUT
Q706
12k SB
DVSS2 14 RB706F-40 2SA1586(Y,GR)F
Q704
SYSCLK1 MIC AGC AMP
13 AF POWER AMP(EXT)
KTC4075E(Y,GR)
D703 MC2850 R790
AF DETECTOR(MIC) DC SW
R786
R760 10k (IC707
100k
C743 47k LIMITER
Q710
R787 1M
SB 2SB1694
0.01u MIC MUTE SW
C772 47p
C744 C746
VOX
R774
10u 270p C769 4
100 oUT
IN- 3 C781 R794
0.47u VOLOUT
D VSS 2
D702 5 0.1u 1.5k
1SS372F VDD
IN+ 1
AF DETECTOR(VOX) BU7465HFV
IC706
DC AMP
(VOX)
EXTSPSW
C774
270p
OPTDET LOW &
Q710 CONTROL
MUTE OFF:3.3V
MUTE ON:0V
G H I J
C58 C60 C61 C63 C68
C78 C79 C81 C202 C207 C208 C216 C227 C234 C241 C242 C243 C244 C248
5p 6p 3p 4p 0.3p 7p 4p 15p 8p 18p 15p 5p 1u 33p 18p 24p 12p 0.3p 24p
4p 8p 6p 8p 0.5p 13p 8p 10p 270p 5p 15p 5p 2.2u 39p 18p 18p 18p - 18p
4p 8p 6p 8p 0.5p 15p 8p 18p 270p 7p 20p 4p 2.2u 24p 18p 2p - - 18p
0-10(F1):NX-340(K,M), NX-340(U)(K)
0-11(F2):NX-340(K2,P,M2,M3), NX-340(U)(K2)
0-12(F3):NX-340(K3)
D203,204
ANT SW
Strip Line
* C268 D203 *C272 L218 L219 L220
R250
ANT
3T 5T 4T
*L211 0 RN141S
D204 *C274 *C276 * C279
Q208
(-92)
RD07MUS2BT214
RN141S
H:1.7V(F1)
2.1V(F2)
2.2V(F3)
L:1.1V(F1,F3)
1.0V(F2)
R:0V
T:1.6V
R:0V
T:4.9V
R252
0
R242 R243
DC SW
470k (D) 10k
IC200
C236 (POWER CONTROL)
BA2904FVM D201,202
R246
10p 1 oUT1 Q210 ANT SW
470k
VCC 8 LTA044EEBFS8
2 -IN1
oUT2 7
3
+IN1
-IN2 6
4
VEE
+IN2 5
DC SW(APC)
7.5V
DC SW(APC) Q209
RE1L002SN
Q207
DC SW
LTC014EEBFS8
(POWER CONTROL)
2.3V(F2)
2.4V(F3)
* C474 *C481 * L420
C473 *C478
(-71)
*
RX BPF TUNING
R444
470k
RX NOTCH TUNE
CN913 CN914 CN915 CN916 CN917 CN918 CN919 CN920 CN921
* R775
* R776
* R778
OPTDET HIGH &
OPTDET HIGH &
MUTE OFF:3.3V
MUTE OFF:5.5V
MUTE ON:0V
MUTE ON:0V
R817
0
AF AMP OPTDET HIGH &
MUTE OFF:2.7V
C791 MUTE ON:0V
0.1u
AF POWER
IC708
AMP(INT)
BU7465HFV
IC709
1 IN+ NJU7089KV1
VDD 5
2 VSS 1 SD
C795 oUTB 8
3 IN- 2 BYPASS
oUT 4 GND 7
1u 3 INT-SP
+IN
V+ 6
C792 4
-IN
oUTA 5
100p
C786 R800 R804 C794 R809
0.22u 18k 0.068u 10k R813 82k
120k
OPTDET HIGH &
MUTE OFF:5.5V
DC SW(IC709 SB) MUTE ON:0V
Q714
OPTDET HIGH &
2SB1132(Q,R) Q714 CONTROL
MUTE OFF:2.7V
MUTE ON:0V
OPTDET
WITHOUT 2PIN JACK:3.2V(H)
INSERT 2PIN JACK:0V(L)
Q711
LTC014EEBFS8
Q715 CONTROL
R816 1k
PTT/RXD
MICIN
R814 MICO
OPTDET
EXT-SP/MIC
27k 50V
AE
J601
TXD
E11-0703-05
NC
NC
AF SW AF SW R815
R802 SPO
(EXT (EXT 100
IC707 470k SP) SP)
TA7368PL
SB) Q713 Q716
2SK3577-A 2SK3577-A
1 NC1 C808 47u
PoUT 10
2 VCC C809 47u
PW-GND 9
3 NC2
PRE-GND 8
4 VIN C789
PHASE 7
5 RIPPLE 100p OPTDET LOW &
MUTE OFF:3.2V
NF 6
MUTE ON:0V
INT-MIC
C787
MIC
Q712
Q709 0.1u LTC044EEBFS8
LTC014EEBFS8
POP NOISE MUTE CONTROL
K L M N O P Q
(No.RA003<Rev.004>) 2-1