Kenwood TK-2402(V) Service Manual page 45

TX-RX UNIT(X57-8310-10)
PLL system
R775
IC2
0 MB15E03SL-E1
9 CLoCK
PLL_CLK FIN
CP1 10 DATA 8
XFIN
PLL_DAT 7
11 LE
PLL_LE GND
6 R16 R17 R19 R20
PLL_PS 12 PS
Do
X1 13 5 560 560 560 0
1.67V 19.2MHz 100X4 ZC
VCC 4
14 LD/FoUT
1 VCoNT VP
VCC 3
4 15 P
oSCoUT
16 R 2
2 GND R4 L1
oUTPUT Speed up(PLL UL) oSCIN 1
3 4.7u
120
L77-3055-05
L2
R13
10
5.0V
C18
10k C22
R2 R10 1000p 1000p
33MS C19 C23 3.2V
C5
100
R7 0.01u 0.01u
1000p 3.3V
5.6k
4
oUT R8 C16
IN- 3
3.3V
330 0.01u
VSS 2 R9
5 VDD
IN+
1 10k
IC1
TC75S51FE(F)
33MS
DC AMP(FRQ/MOD)
7.5V
L600 F600
7.5V 2.5A
BATTERY Voltage prevention
19.2MHz
CN600
VR1
1 VOLOUT
2 VOLIN
3 B F601
4 SB 1A
MINVOL
5 VOLGND
6 EN2
Q603
7 EN4 SSM3K127TUT
8 GND DC SW(MIN-VOL)
EN3
9
10 EN1
S1
R614
820k
L601
DC SW(50T) R:0V
IC601
Q601 T:4.9V R:0V
7.4V XC6209B502P-G T:3.3V
SSM6L36TU-F
4 VIN
CE
3
VSS 2
5
VoUT NC 5.0V
1
50M
R:4.9V
Voltage regulator(50M)
Q602 T:0V
SSM6L36TU-F
Voltage regulator(50C)
IC602
MM1856A50N 5.0V
1 DC SW(50R)
VIN VoUT
2 5
GND
3 50CC ON: R:3.3V T:0V
CoNT NC
4 3.3V
50CC
Voltage regulator(50V)
IC603 50VC ON:
7.4V
XC6209B502P-G 3.3V
SB
4 VIN
CE
3
Voltage drop 3.3V
VSS 2
D600 5
RB521S-30 1 VoUT
VIN NC 1 5.0V
VoUT
2 5
GND
DC SW(33MS)
3 CoNT
NC Q606
4
SSM3J36TUT
IC604
MM1856A33N ON:0V 3.3V
Voltage regulator(33M) SB
3.3V
BLUE LED
7.2V R613
ON:3.3V
100k
GREEN(BUSY)
IC605 DC SW(TX,BLUE-LED)
BU4830F
RED(TX) BLUE Q605
Voltage LTC014EEBFS8
detector
(reset) BUSY LED
DC SW(BUSY-LED)
Voltage detector(INT)
Q600
IC600
XC61CN4502M-G INT LTC014EEBFS8
R609
VIN VoUT
DC SW(TX,BLUE-LED) R:0V T:3.3V
3 1 1k
Q604
3.3V LTC014EEBFS8
Over voltage
protection
1.4V
50C 50C
R28
C30 FIN FIN
5.0V 0.3V
680
270p
L4 C41 R30
CVIN
12n
Do Do 20p 33k
Fin doubler
Q2
2SC5636 CV(A)
D704,D705
PLL Fin BPF SW
50R 50R
CV CV
Freq Freq
CVIN
33M
IC700
1
S
VCC 8
2 Q
HoLD
3 7
W
C711 C 6
4
VSS
1000p D 5
EX25064ATA00A
EEPROM
50T 50T
19.2MHz 19.2MHz
+B +B
PTT_RXD PTT_RXD
VOLOUT VOLOUT
VOLIN VOLIN
REDLED REDLED
R708
1k
R710
61
QT/DQT IN MODEL
1k 62
HSDDEC
CE
BATT BATT 63
BATT NC
64
CVIN NC
BUSY
65 BUSY
33MSC
RSSI 66
RSSI LPSW
VOX 67
VOX EMP
68
NC NC
69
NC 5TC
PLL_PS
70 MCU
PLL_PS 50VC
PLL_UL IC702
71
PLL_UL F363BEDFEKDLF NC
PLL_LE 72
PLL_LE PTT
PLL_DATA 73
PLL_DATA EMPTT
PLL_CLK
74
PLL_CLK NC
75
AVSS EM_SCLK
76
WIDE/NARROW RXD
77
VREF TXD
78
AVCC
NC
79
ASSTSW NC
TX/RX
80 TX/RX
5CC
3.3V
50M 50M
RESET RESET RESET
MOD1 MOD1
HSDENC R733
10k
R703
50V 50V
10k C720 R732
33M 33M
MODE VSS 0.01u 68
BLULED BLULED C719
GRNLED GRNLED
1000p
C718
VCC C725
0.1u R738
33M 5p
3.3V
Beat shift SW
Q701
KTC4075E(Y,GR)
R719
22k
7.4V
C717
0.012u
SB SB
INT INT
Do Do
50C 50C
VLO VLO
DC AMP(CV)
IC3 D4,D7 RX-VCO
BD7542FVM RX VCO tune Q5
L3 D7 C46 MCH3914(8)-H
1 L7
oUT1
VDD 10u
2 IN1- 8 DC SW(MOD) 1SV325F 68p
oUT2 7 R24 Q1
3 IN1+
IN2- SSM3J36TUT Q1 conrol
4 6 470k
VSS
IN2+ 5 Q3
C33 R27 KTK5132E-P
0.01u 10k
RX assist
D8 TX-VCO
D3,D5,D8,D9
TX VCO Q6
tune 1SV323F MCH3914(7)-H
L8 D9 C47
10u 1SV323F 82p
TX
assist
MOD
TASIS
TASIS
R31
T/R VCO DC SW
330k
SSM3J36TUT
5V
Q4
KTC4075E(Y,GR) L17
Ripple
fillter
Speed up
AsstSW TX/RX TX/RX
50T 50T
DICSW DICSW
19.2MHz 19.2MHz
+B +B
PTT/RXD PTT/RXD
APCSW APCSW
50R 50R
VOLIN
VOLIN
MOD2 MOD2
33M
33M
5.0V
C736
3.3V
1000p
40 R739
39
4.7k
38
3.2V
37 33M
36 IC704
BU7465HFV C741
35
R734 DC AMP(BPF1 tune)
10u
34 4.7k
C740
33
5TC CP24
Freq Freq 0.1u
32
50VC CVADJ CVADJ
C742
31
1kX2 1000p
30
IC703
7.4V MM1856A33N 3.3V
29
1 VIN 5
28
VoUT
27 EM_SCLK 2 GND
3 4
26 CoNT
R736 NC
25 1k TXD
24 Voltage regulator(33B)
23
22 BPF1
21
TXD TXD
50M 50M
HSDENC HSDENC
PTT/RXD1 PTT/RXD1
MOD1 MOD1
CML_IRQ CML_IRQ
C724 37
DVSS3
C735 38
0.01u VDEC2
XTAL/CLoCK XTAL/CLoCK 10u 39
XTAL/CLoCK
XTALN
XTALN 40
X700 XTALN
Beat shift R744 L701 41
L78-1434-05
ON:3.3V DVDD
19.200MHz Off:0V SDATA_O_CML SDATA_O_CML 15 42
CoMMANDDATA Baseband system
0 SDATA_I_CML SDATA_I_CML 43 IC705
REPLYDATA
C734 44 CD686AQ3
NC
10u 45
DVSS4
46
SERIALCLoCK
SCLK_CML SCLK_CML 47
Beat shift SW
SYSCLoCK2
Q702 CML_CSN CML_CSN 48
CSN
KTC4075E(Y,GR)
C743
C744 10u
SB SB
LSDO LSDO
DISCFB DISCFB
WIDE/NARROW WIDE/NARROW
50V 50V
33M 33M
R:4.2V
T:0V
Buffer AMP
3.2V
C79 R:2.1V R210 R212
R37 Q9 T:2.0V
2SC5636 RF AMP 22 1.5k
22 22p T/R SW
Q10 3.0V
C201
2SC5636 L26 C81 D15 R202 C202 R257
C72 C74 0
15n 18p HSC277 1000p 47p 0
Pre-AMP R:0V
33p 15p R:0V
T:1.8V Q201 T:1.0V
C68 R40
2SC5455-A C216 R217
1p 150k
C207 C208 39p
39p 39p
4.5V
0.7V
R38
22
C66 T/R SW
0.5p R:0V
4.2V T:4.9V
50T
50T
Q8
R:0V
T:4.2V
Q8 control
Q7
SSM6L36TU-F
R:0V
1LO 1LO
T:3.3V
DICSW DICSW
+B +B
R:4.9V
T:0.0V
APCSW APCSW
PC PC
5.0V
50C
R:4.9V
3.5V T:0V
0.7V C407
39p
IF system
R400
IC401 50R 50R
C404 L401
330k NJM2591V
100n R:0.6V
56p 16 C422 R418 XF400
Q400 1 oSCIN T:0V
MIXIN L71-0683-05
KTC4080E-P 2 15 10p 680k 38.85MHz
oSCoUT
Doubler(2nd LO) GND C426 R419 R420 C432
3 MIXoUT 14
470
CF401 4 NoISEREC 0.01u 470 0.01u
L72-0973-05 V+ 13
NoISEDET 1st IF AMP
C401 C408 5 12 L79-1866-05
IFIN Q403
C411 RSSI C417 CD400
0.1u 0.1u 6 DEC 11 KTC4075E(Y,GR)
0.1u IFoUT 56p BUSY
7 FILoUT 10
R410
R404 8 QUAD 9
FILIN 1.8k
AFoUT
470k
R405 C412 R407
270k 27p 3.3k
RSSI
W/N SW
R408
3.3k
PTT/RXD PTT/RXD
W:3.3V Q401
N:0V
LTC014EEBFS8 Q402 control SB SB
BPF1 BPF1
33M 33M
TXD TXD
50M 50M
PTT/RXD1 PTT/RXD1
R768 C756 C759 R772 R773 C763 R789 C775
10k 1u 1u 150k 10k 0.1u 10k 0.1u
D700
KDR731
R784
C760 MIC AGC AMP
1k Q705 OPTDET
0.47u High &
MoD2 2SC4116(GR)F
24 R766 Mute Off:3.3V
MoD1 Mute On:0V
23 2.2k
AVSS1 C761
22 R761 R785 MIC AGC AMP
0.47u
MIC Q706
21 0 D700,D701 2.7k
MICFB D701 2SA1586(Y,GR)F
20 KDR731 AF detector(MIC) MIC MIC
ALTFB Limiter D703
19 MC2850
R790 C777
ALT 18
R786
DISCFB 10k 0.068u
17 R770 C758 100k
DISC MIC mute SW
16 180k 4.7u R787 1M
Q704 OPTDET
GPIo2 15 KTC4075E(Y,GR) D702 47p
C772 Low &
DVSS2 1SS372F Mute Off:7.4V
14 R774
SYSCLoCK1 C769 4 Mute On:0V
R769 C757 100 oUT
13 IN- 3
100k 0.47u
22u
5 VSS 2
AF detector VDD
R760 (VOX) IN+
1
0.01u
47k OPTDET
IC706
BU7465HFV Low &
LTC014EEBFS8
R757 C746 DC AMP(VOX) Mute Off:3.3V
Mute On:0V
47k
1000p 3.3V
C774
1000p
50V 50V
D203,D204
Final AMP ANT SW
Q208
RD07MUS2BT112 L221 L222 L223 C264 R250 C268 D203 C272 L218 L219 L220
Drive AMP
0
Q206 C228 R240 1000p 1000p HVC131 1000p
C274
RD01MUS1-T113 D204 C276 C279
68p 4.7
16p 6p 7p
HVC131
C219 L207
H:1.4V
12 30p 39n L:0.8V
R:0V
T:0.8V
H:2.2V
L:1.3V
R252
0
R:0V
T:4.9V
H:3.7V D201,D202
L:2.2V ANT SW
50T
R223 R235
Dischage SW 560 1.8k
R242 R243
Q203
470k 10k
LTC014TEBFS8 DC SW(Power control)
C236
R246 Q210
10p 1
AoUT 470k LTA044EEBFS8
Over voltage protection V+
R237 2 A-IN 8
150k 3 BoUT 7
A+IN
B-IN
4 6
R238 GND
B+IN 5
150k
IC200
NJM12904RB1
DC AMP(APC)
7.5V
DC SW(APC)
R:0V Q207 DC SW(Power control)
APC control SW LTC014EEBFS8
Q209
Q205
SSM3K15AFS-F
KTK5132E-P
R:3.3V
T:0V
L405 L407
56n 56n
C436 C439
2p 3p
R:4.9V
T:0.0V
BPF
50R L412
L406
220n R448 C474 C478 C481
RX RF AMP R:4.2V 0 4p 8p 33p
T:0.0V
Q405
R423
1st mixer R429 C447 C484 C450 C452 C456 C458 C461 R434 3SK293-F
2.2k Q404 D403,D404
R:3.2V 0 1000p 8p 1000p 1000p 4p 4p 1000p 0 R440 C469
C437 3SK318 T:0V RX BPF tuning
R:3.2V 0 12p
16p C444
T:0V
R:3.0V OPTDET High &
1000p T:0V Mute Off:3.3V
Mute On:0V
OPTDET High &
OPTDET High &
Mute Off:5.5V
Mute Off:2.7V
Mute On:0V Mute On:0V
D401,D402 INTSPMT AF power AMP
OPTDET High &
RX BPF (INT)
tuning C791 Mute Off:2.7V
IC709 Mute On:0V
0.1u NJU7089KV1
IC708 1 SD
BU7465HFV oUTB
2 8
BYPASS
1 5 GND 7
VOLOUT IN+ C795 3 +IN
VDD
2 VSS V+ 6
1u 4 -IN
3 oUTA
IN- 4 5
oUT OPTDET High &
Mute Off:5.5V
AF AMP Mute On:0V
R813
C786
R800 C792 100p 68k
0.22u 18k
Q714 R804 120k C794 R809
DC SW(IC709 SB) 2SB1132(Q,R)
0.1u 10k
33M
PTT/RXD
R816
MIC 1k
R792
OPTDET R814
Q714 control 470
27k
Q715
Q715 control UMG3N OPTDET
Q711 without 2-pin Jack:3.2V(High)
OPTDET Low & insert 2-pin Jack:0V(Low) TXD
LTC014EEBFS8 Mute Off:3.2V
R815 TXD_OUT
Mute On:0V
50M
100
DC SW(EXT-PTT)
5.0V
Q708
AF SW(EXT SP) LTC014EEBFS8
R802 AF SW(EXT SP)
DC SW Q713 Q716
(IC707 SB) 470k
2SK3577-A 2SK3577-A C808
Q710 1
NC1
2SB1694 PoUT 10
2 VCC 47u
PW-GND
9
3 NC2 C809 5.0V
PRE-GND 8
4 C789
VIN 47u
C781 R794 PHASE 7 100p
5 RIPPLE
N F Pop noise mute control
0.1u 1.5k 6
Q710 control IC707
TA7368PL Q703
Q709
UPA672T-A
Q712 Q707
AF power AMP(EXT) LTC044EEBFS8 Level shift(TXD)
UPA672T-A
C787 Level SW(RXD)
0.1u
ANT
C810
24p
L420
22n
INT-SP
J601
PTT/RXD EXT-SP/MIC
MICIN
MICO
OPTDET
50V
AE
TXD
NC
NC
SPO
INT-MIC