Kenwood TH-D72A Service Manual page 70

U
TH-D72A/D72E
1200 TData
FPC ASSY
SPG
MICG
SP
UP
LEFT
DOWN
GP_BU
REVERSE
CURRENT
PROTECTOR
33C
9600 TData
RST_S
70
X57-784 (A/3) 5/8, X57-784 (B/3) 1/1
V
SCHEMATIC DIAGRAM
X57-784X-XX(A/3)
0-11
2-71
POWER SW MENU A/B
GND
RIGHT
PSW
D 72 9 - 7 3 3
CN770
REVERSE
CURRENT
PROTECTOR
GND
CN771
REVERSE
CURRENT
CN713
PROTECTOR
CLKC
3.0V 6 INTRA
7 CLKC
8 oSCoUT
X701
9 oSCIN
1 4
10 VDD
2 3
Q 730
32.768kHz
S S M 6L05F U - F
SWITCH
W
TX-RX UNIT (X57-784X-XX) (A/3) : CONTROL SECTION
D729 D731 D732
MA2S111-F MA2S111-F
TH-D72A K NO
TH-D72E E NO MA2S111-F
TX-RX UNIT(X57-784X-XX)(B/3):PTT SECTION
PTT
S 7 2 0
C N 7 1 8
C N 7 1 9
∗
R 9 9 5
∗
R 9 9 6
D 7 3 3
S 7 0 9 S 7 1 4
∗
D 7 3 2
1 2
S 7 1 0 S 7 1 5
∗
D 7 3 1
4 5
D 7 3 0
S 7 1 1 S 7 1 6
MA2S111F
8
7
S 7 0 8 S 7 1 2
∗
D 7 2 9
0
*
RTC
VSS
5
INTRB
4
SDA
3
SCL
2
32KoUT
1
CN714
I C 7 1 7
R 2 0 2 3 T
32K
X
R 9 9 5 R 9 9 6
1200 TData
0
NO
0
NO NO
LAMP
MONI
NO
S 7 2 1 S 7 2 2
CHG_TH
BATTERY CHARGE
TEMP DET
CN741 CHG_TH
D739
1 S S 3 8 8 F
D 7 3 9
R 8 4 8 4 7 0 k
REVERSE
CURRENT
PROTECTOR
D 7 3 4 - D 7 3 8
REVERSE
CURRENT
PROTECTOR
D 7 3 5
1 S S 3 8 8 F
S 7 1 7 S 7 2 4
3 A
D736
1 S S 3 8 8 F
S 7 2 5
S 7 1 8
6 B
D737
1 S S 3 8 8 F
S 7 1 9 S 7 2 6
9
C
D738
1 S S 3 8 8 F
S 7 1 3 S 7 2 3
#
D
D734
1 S S 3 8 8 F
Q 7 1 9
R 8 3 4
3.3V
4 7 k
S S M 6 L 0 5 F U - F
SWITCH
I C 7 3 5
T C 7 S 6 6 F U F
1 IN/oUT
VCC
5
2 oUT/IN
3 GND
CoNT
4
ANALOG SWITCH
9600 TData
RST_S
Y
CHG_TH
KEY_I1
KEY_I0
KEY_O4
PTT
KEY_O4
KEY_O3
KEY_O2
KEY_O1
KEY_O0