Block Diagram - Kenwood TH-D72A Service Manual

TH-D72A/D72E
GPS Module
Q704
IC708,IC709
2SJ
232B_S
347F
LEVEL
CONVERTER
EXT COM
TC7W53FK(F)x2
IC702
ADM
3101E
/LCD_RST
/LCD_CS
LCD MODULE
/LCD_WR
LCDCNT
A[0]
D[0]
ATT
D[7]
IC736
Vbus-DET
NJM2874
F4-33
Vbus-USB
USB
Vbus
USB
TXD_USB
D–
DRIVER
RXD_USB
D+
CTS_USB
CP2102
SX0567 RTS_USB
ID
RST_USB
IC710
/SUSPEND
D704
KEY
MATRIX
PTT
LAMP
MONI
TX-RX UNIT
IC730
(X57-784)(B/3)
EEPROM
: PTT SECTION
M95512
E2PSI
-RDW6TP
E2PSO
E2PCS
E2PCL
IC731
M95M01
E2PCS2
-RMN6TP
IC714
D725,D726
MIC AGC
TC75W51
RB706F
FK(F)(1/2)
Q712
IC712
MIC AMP
NJM2107
F-ZB
IC714
VOX AMP VOX DET
TC75W51
FK(F)(1/2)
MIC JACK
Q703
AF MUTE
SP JACK
CPH
3417
2SK
Q702
1830F
SPM
MIC
SP
82

BLOCK DIAGRAM

TX-RX UNIT (X57-784) (A/3): CONTROL SECTION
D710~D715, D718~D723
LAMP B
GP_ON
TXD_IGPS
RXD_IGPS
GP_PS
33GPS
TXD_EGPS.RXD_EGPS
33M
B
47C
IC713 IC726
RXD_COM
TXD_COM R3119N XC6109
042AFE
SKY_SW C28ANN
RESET
INT/RST
BSFT1
IC737
XOUT
MAIN MCU
5F3651TDFC
XIN
SCLK0
TC7W74
MICM
PKTBND
DAC_RST VTX1
DAC_EN 33TNC_S
CNT_CLK LAMP
To Sub MCU
AFM 232B_S
KEY_I0
SPM VGPS
BSFT2
KEY_I1
BEEP SAVE2
TNC_WR
KEY_I2
DTMF AFB_S
TNC_RST
KEY_I3
RLEDA C_S
RTS_TNC
KEY_IT
TLEDA TAB_S RXD_TNC
KEY_00
CTS_TNC
KEY_01 RLEDB Vbus_DET TXD_S
TXD_TNC
KEY_02 TLEDB RXD_S
KEY_03
KEY_04
PTT
To Sub MCU
TXD1
RXD1 33M
IC717
R2023T INTRTC
RTC_SDA
RTC_SCL
X701
32K-SW
L77-1802-05
32.768kHz
MICM
Q716
-40
2SK
1830F
Q713
2SC 2SC
4738 1832
Q714
TONE
(GR)F (GR)F
MIC MUTE
2SK
IDC
1830F
TC75W51FK(F)
DTMF
D716
IC716
MICM
RB706F
VOX IN
-40
DTMF BEEP
Q711 Q715,Q718
/1750 /WX
IC734
AF MUTE HPF,AMP
AF AMP
2SK
NJM2070
1830F
M-ZB
AFM
33C
ENC1
ENC2
33C
IC718 AVR
B
D717 D709
IC715 AVR
UPA UPA
Q710 Q708
672 672 B33M
T-A T-A
RLEDA TLEDA RLEDB TLEDB
IC719 AVR
B
IC703 IC701
LM2682 NJM2130
MMX F3-ZB
IC705 AVR
LCDCNT
B
Q721
WXCTIN_A
12A
Q723
B
WXCTIN_B
02CH
SQA
RT1N
SMA
441U
SQB
-T111 2SC
Q722
SMB LAMP 4617
LDA (R)
11.0592
LDB
MHz
CHG_TH2
DC_DET
REM
VOX IN
1/2
ENC1
ENC2
FK
SCLK
IC727
PKS_IN 33TNC
S9600
TNC MCU
GPSLED
CON
5F364
SQ
AMDFB
CLKOUT
STA
TNC_CAR
15.9744MHz
RT1N
1200DATA
Q724 441U
-T111
BSFT2
9600DATA
IC735
PKD96 MUTE
IC733
TC75W51FK(F)
TC7S
66FUF
AF AMP
1200
1200
PKD96M
AF AMP
9600
SPL
FILTER
MOD
DAC_RST IC721
DAC_EN
E-Vol
CNT_CLK
AK2330
CNT_DT
Q717
DE-
EMPHASIS
2SC 2SC
4617 4617
(R) (R)
IC720
TC7W53FK(F)
SSM
6L05
Q709
FU-F
SAVE2
PKTBND
TX-RX UNIT (X57-784) (C/3): T
33C
Q701
SSM
TA48S
33GP
3J05
033AF
FU-F
VGPS
C_S
Q725
SSM
TK112
33M
33TNC
3J05
33CU
FU-F
33TNC_S
NJM28
47C
Q720
72AF47
SSM
TAB
3J05
C_S
FU-F
TAB_S
NJM
AFB
Q719
2387A
SSM
TX AF
6L05
AFB_S FU-F
VTX
LAMP B
Q707
SSM
6L05 VOX_B
FU-F
MICB_S
Q726 Q727
IC725
2SC 2SA
MOUT
TA75S
4617 1774
393F-F
(R) (R)
33TNC
MCIN
IC728
33TNC
TNC ASIC
1/2 CLK
TGT0210Q
CLKIN
TC7W74
FK
IC724
1200
LPF
9600
LPF
IC732
TA75W393FU-F
COMPARATOR
Q728
2SC46
1200
17(R)
Q729
COMPARATOR
2SC46
9600
17(R)
TC&REF_B
33C
REF_B
REF_A
MOD
APC&BPFA
BPFB
47C
WXCTIN_B
TONE
AMP B
WXCTIN_A
TONE
AMP A
PKD AMP
IC722
NJM2112V-ZB
6
XC6
53
IC513 PLL
MB15E
PS_B
03SL-E1
LE_B
LP
TR_DATA
TR_CLK
X511
D514,
TCXO
MA2S
16.8MHz LPF
L77-30
57-05
33CB TC&REF_B
2S
2SJ
VHF_B 54
347F
A-
LPF
Q660
D516,D517
SW
33C
HSC277
Q208 RN
45C 4902 144T
-F
144TX_S
Q209
SSM
6L05 430T
FU-F
430TX_S
Q210 SSM
45TX
3J05
(DRIVE)
FU-F
2SK
Q211
VTX1
1830F
Q612
SSM
6L05 45RVA
FU-F
45RVA_S
Q613 SSM
6L05 45RUA
FU-F
45RUA_S
Q614 SSM 3
6L05 45RVB
FU-F
45RVB_S
Q611
SSM
6L05 45RUB
FU-F
45RUB_S
Q615 SSM
45RVAM
3J05
FU-F
45RVAM_S
DET_A
DET_B
1
33CS
4
IC611
4
SUB MCU
4
RXD_S
4
SCLK
78F0515
4
TXD_S
4
INTS AGKDXA
3
S
BT_V
CHG_TH
CHGEND
VHFB DC_S
FTH
SHIFTB PRE_CHG
RST
TR_CLOCK BTV_ON
TR_DATA BSFT3
LE_A APCSW
VAIP
LE_B
A_S PS_A
PS_B
B_S
CHG