Kenwood TK-3401D Service Manual page 27

BLOCK DIAGRAM
TX-RX UNIT (XC1-0072-70)
IC601 XC6209B502P-G
SB AVR
Q601 SSM6L36FE
5 DC
SW
BATT
5TC
IC606 XC6209B332M-G
AVR
IC602 MM1856A50N
50CC
AVR
IC603 XC6209B502P-G
50CC
AVR
IC604 MM1856A33N
4
50VC
PROTECT AVR
D600
RB521S-30-TP
INT INT
IC600 XC61CN4502N-G
+
B (7.5V)
BATT
(7.5V)
IC703 MM1856A33N
-
PROTECT
33B
AVR
(3.3V)
D603 GN1G
3
PWR
SB (7.5V)
SW
/VOL
Q603 IC709
SSM3K127TUT NJU7089KV1
DC AF
SW AMP
MINVOL
DC
INTSPSW
SW
+
INT
Q711 LTC014EEBFS8
SP Q714 2SB1132(Q,R)
-
Q715 UMG3N
SB 50M
2
Q707 SSM6N17FU
J601
PTT/RXD LEVEL
MICIN SHIFT
MICO
OPTDET
EXT 50V
DC
AE 33M
EMPTT
SP/MIC TXD SW
Q708 LTC014EEBFS8
SPO
Q713 , Q716 2SK3577-A IC707
MUTE
INT
SW
MIC
Q712
Q703 LEVEL
1 TXD LTC044EEBFS8
UM6K34N SHIFT
DC
SW
33M 50M
DC
EXTSPM
SW
Q709 LTC014EEBFS8
A B
IC2 AK1541
50M (5.0V) PLL_DATA
PLL_CLK LPF
PLL_LE
50T (5.0V)
PLL_LD
PLL
Q602 SSM6L36FE
X1 16.8MHz
LOOP
DC
50R (5.0V)
SW MOD1 FILTER
FREQ
5RC
33C (3.3V)
33MS 33MS 50C
IC3(1/2) DC
50C (5.0V)
BD7542FVM AMP
50C CVIN
50V (5.0V)
33M (3.3V)
Q606 SSM3J36TUT
DC
33MS (3.3V)
SW
33MSC
Q400 KTC4080E-P
RESET RESET
TRIPLER
IC605 BU4830F
AVR 33MD (3.3V)
50R
IC715 MM1856A33N
IC705 CMX7141 IC717
BASEBAND
IC708
BU7465HFV
CML_CSN
CML_SCLK
CML_CDATA
MIC
AMP CML_EPSO
MUTE
LSDO
HSDENC
XIN
Q704 KTC4075E(Y,GR)
Q705 LSCR523UBFS8
33B CML_SSOUT
Q706 LSAR523UBFS8
CML_EPSCLK
D700, D701 RB706F-40
CML_EPSI
CML_RDATA
CML_IRQN
IC706 BU7465HFV LSDI
D702 1SS372F HSDDEC
D703 MC2850 PC
CVADJ
FREQ
MOD1
VOX
VOX
PTT
33M
RXD
50M
TA7368FG
SB SB
AF D601 D602
AMP B30-2314-05 B30-2315-05
Q710
DC DC
2SB1694 GRNLED REDLED
SW SW
DC
SW
Q600 Q604
LTC014EEBFS8 LTC014EEBFS8
SB
C
(No.RA012<Rev.001>) 2-5
Q2 2SC5636
TK-3401D E
RF TK-3401D T
AMP
50C
T X V C O
Q9 2SC5636 Q10 2SC5636
TX BUFFER RF
Q6 MCH3914(7)-H
VCO AMP AMP
D5,9 BBY66-02V
D11 BBY57-02V
D13 BB555-02V
50C
Q8
SSM3J36TUT
DC
SW
R X V C O
RX
VCO Q5 MCH3914(8)-H
D4, D7 BBY66-02V
D12 BBY57-02V
Q4 KTC4075E(Y,GR)
Q7 SSM6L36FE D10 KDS160E-P
DC DC RIPPLE
50C
AMP SW FILTER
IC3(2/2) BD7542FVM
Q1 SSM3J36TUT
Q3 RE1C001UN
50C CVADJ TX/RX
MONOLITHIC CRYSTAL FILTER
Q403 XF400
IC400 AK2365A KTC4075E(Y,GR) 49.95MHz
2nd LOCAL 1st IF
50.4MHz 49.95MHz
IF
MCF
AMP
33C
RSSI
FM IF
BUSY SYSTEM
FM_SDATA
BU7465HFV
FM_RSTN
FM_CSN
AMP
FM_SCLK
FM_PDN
33M LSDO 33C
IC710 2F405VGT6KFAA
MCU
33M 33MD FM_SDATA
SB
D604
B30-1790-05
X2 IC713
19.2MHz SM5023CNDH-G
DC
BLUELED BSHIFT AMP
SW
Q605
LTC014EEBFS8
33MD 33MD
D E
2-5 (No.RA012<Rev.001>)
TX VCO RX VCO 1st LOCAL
446.00625~446.196875MHz 396.05625~396.246875MHz 396.05625~396.246875MHz
D14,15 Q201 Q206 Q208
1SS390 2SC5455-A RFM01U7P RD02MUS1BT112
T/R RF RF RF
SW AMP AMP AMP
50T 50R 50T
Q210 IC200
LTA044EEBFS8 BA2904FVM
DC DC
CURRENT
DCSW
SW SW
DET
1 s t L o c a l
Q203 LTC014TEBFS8
Q209
Q205 RE1C001UN RE1L002SN
B
DC DC DC
SW SW SW
Q207 LTC014EEBFS8
50T APCSW PC
Q404 D400,401,402 Q405 D403,404
BB506CFS-E 1SV305F BB506CFS-E 1SV305F
1st RF
BPF BPF
MIXER AMP
50R 50R
DC IC704
PC
AMP BU7465HFV
50C
LSDI TH_DET PTT EEP_DATAI
HSDDEC INT PF1 CML_SSOUT
VOX RESET PF2 CML_EPSCLK
CVIN XIN EN1 CML_EPSI
BATT RXD EN2 CML_RDATA
RSSI OPTDET EN3 CML_IRQN
BUSY PLL_UL EN4
MINVOL 50VC EXTSPMT FM_RSTN CML_CSN
DCSW LSDO ASSISW FM_CSN CML_SCLK
APCSW HSDENC TX/RX FM_SCLK CML_CDATA
BLUELED 50RC INSPSW FM_PDN CML_EPSO
BSHIFT 33MSC TXD EEP_DATAO
INTSPMT GRNLED PLL_DATA EEP_CS
5CC REDLED PLL_LE EEP_SCLK
EMPTT MIC_MT PLL_CLK EEP_WP
IC700 EX25064ATA00A
EEP_DATAO
EEP_CS
XIN EEP_DATAI EEPROM
EEP_SCLK
EEP_WP
33M
F
TX/RX
T X / R X
446.00625~446.196875MHz
D201,202 RN142S
D203,204 RN141S
ANT
ANT
LPF
SW
50T
B
APCSW
NOTCH D405
FILTER JDV2S07FS
CH SW
EN1
EN2
EN3
EN4
PTT S601
PTT
PF1 S602
SIDE1
PF2 S603
SIDE2
G