J
K
L
M
N
O
P
Q
R
S
I
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D
G
S
D
G
S
IC736
2
3
1
4
R801
R807
R816
R817
R829
R830
R839
R843
R848
R851
F702
L701
L706
L708
Q730
3
4
1
6
CP34
CP36
CP37
R713
R714
R715
R716
R724
CN718
CN719
CN723
SET
R740
C708
R749
C710
C711
C712
C713
CP77
R750
C716
C717
C718
C719
C720
C722
R955
C728
C729
S708
*
S709
1
S710
4
R771
S711
7
C735
PTT
R966
S712
0
R967
1
3
4
6
7
9
10
12
7
8
14
15
21
22
28
C737
S713
#
S714
2
C739
S715
5
S716
8
S717
3
S718
6
S719
9
C740
TXD
GND
NC
NC
RXD
C742
33C
R973
R975
C746
+
+
+
S723
D
S724
A
R979
S725
B
S726
C
R980
C754
R790
C755
REM
SP
SPG
INT SP
INT MIC
NC
NC
MIC
R988
C759
C761
R991
R992
C763
C764
D704
C765
R995
R996
R998
D710
D711
D712
D713
D714
D715
D718
D719
D720
D721
IC701
3
4
1
5
C975
D722
C976
D723
IC703
4
5
1
8
C786
C787
C788
C789
IC709
4
5
1
8
D739
CP35
V1
V5
/WR
/RES
D[1]
VSS
A[0]
D[6]
VDD
D[7]
V2
/CS
1
20
D[4]
D[3]
V4
D[5]
VDD
D[2]
D[0]
V3
Q701
L702
L703
R708
CP31
CP32
CP38
CN703
CN716
33C
R734
C703
C705
TH701
C707
C709
C721
C723
C724
C725
C726
C727
C741
R974
CN769
LCD CONTRAST
R983
R984
R993
C962
Q708
3
4
1
6
3
4
1
6
Q710
R720
R726
R755
R756
R757
R758
R759
R760
R761
R762
R769
R770
C744
C745
C747
C748
R785
R989
R990
D741
R784
R835
R842
R844
CN707
RXD_USB
CN708
TXD_USB
CN709
CTS_USB
CN710
RTS_USB
CN713
CLKC
CN714
32K
CN715
CN724 CN725
MAIN_WR
CP78
R753
R754
CN741
THG_TH
CN743
33M
CN744
CNVSS
CN745
/RST
CN746
33TNC_S
CN747
TXD1
CN748
SAVE2
CN749
RXD1
CN750
RTC_SCL
CN752
KEY_O2
CN753
VCC
CN761
E
CN763
/SUSPEND
R788
CN770
PSW
CN771
D730
D731
D732
D734
D735
D736
D737
D738
F701
C846
R895
R896
L705
R709
CP33
R711
R712
R722
CN721
BV
C715
C736
R972
C743
R985
C760
D705
R999
IC710
C986
Q704
R710
CN722
CN732
EF_A
C714
CN742
DC_DET
CN754
CNVSS
CN755
RESET
CN756
SLCK
CN757
TXD
C738
CN758
BUSY
CN759
RXD
CN760
_EMP
CN762
CE
C758
IC702
IC708
45
18
R836
R840
R841
CN711
RST_S
CN736
33TNC
R772
CN764
+B
CN766
RXD_S
CN767
TXD_S
R786
R787
D729
D733
PTT
1
6
KEY_O4
KEY_I1
KEY_I0
GND
CHG_TH
PTT
1
6
KEY_O4
KEY_I1
KEY_I0
GND
CHG_TH
KEY_O3
1
15
SPG
KEY_I2
KEY_I4
KEY_O4
SPI
KEY_O2
LAMP B
KEY_O0
PSW
KEY_I3
MICG
KEY_O1
GND
MICI
TX-RX UNIT (X57-784X-XX) (A/3): CONTROL section
0-11: K, 2-71: E Foil side view (J79-0278-19 A/3)
TX-RX UNIT (X57-784X-XX) (A/3): CONTROL section
0-11: K, 2-71: E Foil side view (J79-0278-19 A/3)
TX-RX UNIT (X57-784X-XX) (B/3): PTT section
0-11: K, 2-71: E Foil side view (J79-0278-19 B/3)
Component side
Foil side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
TH-D72A/D72E
PC BOARD
PC BOARD
TH-D72A/D72E
J79-0278-19 A/3
J79-0278-19 B/3
Ref. No. Address
IC701
5B
IC702
5L
IC703
7C
IC708
6M
IC709
7L
IC710
4K
IC736
3H
Q701
4B
Q704
4M
Q708
8B
Ref. No. Address
Q710
9B
Q730
10G
D704
3J
D705
3I
D710
10C
D711
10E
D712
3C
D713
3E
D714
8N
D715
5N
Ref. No. Address
D718
8Q
D719
5Q
D720
8P
D721
5P
D722
6N
D723
6Q
D729
6R
D730
10L
D731
10L
D732
10L
Ref. No. Address
D733
7R
D734
10K
D735
10K
D736
10J
D737
10K
D738
10K
D739
9J
D741
9H