74
TH-D72A/D72E
SCHEMATIC DIAGRAM
X57-784 (C/3) 1/8
7
6
5
4
3
2
1
A
B
C
D
E
3.3V
3.3V
4.5V
3.3V
45RVA_S
45RVB_S
45RUB_S
45RUB
45RUA
45RVB
45RUA_S
33RB
33RB_S
33CS
45RVA
SHIFT_B
BT_V
B
BTV_ON
OCD1A
VHF_B
CHGEND
430TX_S
144TX_S
45RVAM_S
TC&REF_B
B
45RVAM_S
PS_B
PS_A
TR_DATA
CHG
FTH
LE_A
DC_S
OCD1A
PRE_CHG
45RVA_S
33RB_S
45RUB_S
45RVB_S
45RUA_S
LE_B
SGL_B
SAVE1
APCSW
VAIP
UAIP
UAIP
33CB
VTX
B
33CB
TXD_S
45RVAM
B_S
A_S
TR_CLOCK
RXD_S
Q612
SSM6L05FU-F
Q613
SSM6L05FU-F
Q614
SSM6L05FU-F
Q611
SSM6L05FU-F
R624
470k
R625
470k
R626
470k
R627
470k
R628
470k
R629
470k
X611
11.0592MHz
CP7
1k
R617
0
R623
100k
R621
100k
CN616
CN615
CN612
CN618
CN614
C618
1u
C620
10u
C619
0.01u
CP11
1k
CP9
1k
CP12
1k
CP13
1k
CP3
1k
CN617
CN613
R630
100
k
R631
100k
R632
100k
R633
100k
SSM3J05FU-F
Q616
C622
1000p
C623
1000p
C624
1000p
C625
1000p
C626
1000p
C621
1000p
CN611
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
R613
0
R615
0
C615
1000p
C617
1000p
C611
1000p
C612
1000p
C614
1000p
R619
R620
L645
L646
CN634
R610
10k
CN635
CP10
47k
CP6
10k
CP2
47k
SSM3J05FU-F
Q615
CP8
100
Q664
RT1N441U-T111
C695
9
p
CP5
1k
CP4
1k
R614
1k
IC611
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
AVREF
24
AVSS
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46 REGC
47 VSS
48 VDD
144TX_S
430TX_S
VAIP
UAIP
33RB_S
PRE_CHG
45RVAM_S
45RVA_S
45RUA_S
45RVB_S
45RUB_S
LE_A
LE_B
TR_CLOCK
RXD_S
TXD_S
INTS
PS_B
PS_A
SHIFT_B
VHF_B
CHG
CHGEND
BT_V
BTV_ON
FTH
RST
DC_S
B_S
FLMDO
SCLK
XOUT
A_S
RST OUT
FLMDO
TXD6
RXD6
OCD1A
VSS
VDD
SAVE1
OCD1B
RST IN
OCD1B
OCD1A
TXD6
RXD6
APCSW
TR_DATA
SGL_B
SQB
DET_A
B
SQA
C_S
GND
DC_DET
BPFA
B
SMB
SMA
MOD
RST_S
TXD_S
LDB
VTX
TC&REF_B
REF_A
RXD_S
DET_B
APC&BPFB
B
LDA
X57-784X-XX (C/3)
2-71
K
E
R619
0
0
0-11
SWITCH
DC
SWITCH
DC
SWITCH
DC
SWITCH
DC
SWITCH
DC
SWITCH
DC
SWITCH
MOD
C N 6 2 0
C N 6 2 1
C N 6 2 2
C N 6 2 3
R X D _ S
T X D _ S
C _ S
R E F _ A
INTS
∗
∗
LDB
DC_DET
C_S
LDA
REF_A
R620
TX-RX UNIT
XT1
NC
TX-RX UNIT : CONTROL SECTION
X57-784X-XX (A/3)-CN731
(X57-784X-XX)(C/3) : TX-RX SECTION
78F0515AGKDXA
SUB MCU
NO
NO
TH-D72A
TH-D72E
GND
NC
NC
45C