Kenwood TH-D72A Service Manual page 67

F
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-784X-XX) (A/3) : CONTROL SECTION
ENC2 14
DC
GND
13
SWITCH
ENC1
12
Q 7 0 1
GND
11
SSM3J05FU-F
GP_BU 10 L7 0 1
NC
9
L7 0 2
GND 8
AFVO 7
AFVI 6
GP_PS 5
TXD_IGPS
4
RXD_IGPS
3
L 7 0 3
33GP
2
GP_ON 1
C N 7 0 1
D 701
SURGE
PROTECTION
R 93 0
1 0 0
J701
PTT
MIC
INT MIC
NC
33C
L 7 1 8
SPG
REM
L 7 1 7
NC
INT SP
SP
L 72 0
R 7 9 0
D 7 0 3
0
SURGE
PROTECTION
33C
D 7 10-D 715
D 7 1 8 -D 7 2 3
B30-2215-05
B30-2215-05
LED
LED
LAMPB
G H
R 9 8 3 1 0 0 k
R 9 8 4 1 0 0 k
C P 3 8
R 9 7 5 1 k
TXD_IGPS
R 9 7 4 1 k
RXD_IGPS
R 7 0 2
1 0 k
L714
R 8 0 7
0
L 7 1 6
R 8 5 1
0
R 8 3 9
0
D 7 0 7
7 . 3 V
SWITCH
C P H 3 4 1 7
D 7 0 6
Q 7 0 2
MA2S111-F
R 7 1 7
1 0 k
D 7 0 6 Q702
D 7 0 2
SURGE
SPEED UP SWITCH
PROTECTION
LED
LED
Q 7 0 8
DC SWITCH
TLEDB
RLEDB
TLEDA
Q 7 1 0
DC SWITCH
RLEDA
I
TH-D72A/D72E
ENC1
ENC2
GP_PS
GP_ON MICB_S
VGPS
S S M 6 L 0 5 F U - F
C 7 7 7
4 7 0 p
DC SWITCH
C 7 5 7
1 u 25
SPI
SPG
MICG
R 7 4 5
0
R 7 2 1
1 0 k
R 7 4 2
Q 7 0 3
I C 7 3 4
SWITCH
1
N C 1
8 NC2
2
+INPUT
Q 7 0 3 7 V+
3
- INPUT
6 oUT PUT
4
G N D 1
5 GND2
N J M 2 0 7 0 M - Z B
AF POWER AMP
I C 7 0 5
AVR
NJM2387A
X57-784X-XX (A/3) C735
0-11 TH-D72A K NO
1 0 0 0 p
TH-D72E E
2-71
J
GP_BU
47C
47C
R 7 4 7
47k
Q 7 0 7
33C
R746
1 0 0
MICI
47C
REM
R 7 4 3 C774
R 7 4 1
BEEP
4 7 k
2 2 k 5 6 0 0 p
C 7 7 5
R 7 4 4
33C
DTMF
1 0 k
0 . 0 1 u
1 0 k
R 7 3 8
1 0 k
SPM
SAVE2
AFB
R 9 1 6
R 7 6 3
0 1 0 AFM
B
AFB_S
AFB
C741 C742 C754 C755 C962 C987
NO NO NO NO NO
NO
1 0 0 0 p 1 0 0 0 p 1 0 0 0 p 1 0 0 0 p 1 0 0 0 p
470p
X57-784 (A/3) 2/8
67