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54
TH-32LRT12U-A * TH-37LRT12U/M/A
12.16. Main Board (15 of 15) Schematic Diagram
5
4
3
2
1
D
C
B
A
MAIN BOARD
PCB-657-D (15/15)
WT6702F
TH-32/37
L
RT12
Main Board (15 of 15) Schematic Diagram
TH-32/37
L
RT12
Main Board (15 of 15) Schematic Diagram
!
IR
SDA_ISP
SC
L
_3
V
3
SDA_3
V
3
SC
L
_ISP
SDA_ISP
SC
L
_ISP
SDA_ISP
POWER_KEY
SC
L
_3
V
3
SDA_3
V
3
SC
L
_ISP
L
ED_R
NRST
NRST
RXD
TXD
TXD
RXD
POWER_ON_WT
IR
L
ED_G
L
ED_R
POWER_KEY
L
ED_G
P_ON/OFF
MUTE_AMP_WT
DETECT_TUNER
TUNER_MODE
TUNER_MODE
DETECT_TUNER
MUTE_AMP_WT
NRST
UART_ENN_3
UART_ENN_4
UART_ENN_4
UART_ENN_3
P_ON/OFF
POWER_ON_WT
3
V
3_SB
3
V
3_SB
3
V
3_SB
+5
V
_SB
3
V
3_SB
3
V
3_SB
V
DD_RTC
V
DD_RTC 3
V
3_SB
3
V
3_SB
3
V
3_SB
SC
L
_3
V
3
P(5,7,10,15)
SDA_3
V
3
P(5,7,10,15)
SDA_ISP
P(10)
SC
L
_ISP
P(10)
P_ON/OFF
P(11)
RXD
P(10,15)
TXD
P(10,15)
POWER_ON_WT
P(11)
IR
P(7,10)
L
ED_G
P(10)
L
ED_R
P(10)
POWER_KEY
P(7,10)
DETECT_TUNER
P(15)
TUNER_MODE
P(15)
MUTE_AMP_WT
P(14)
UART_ENN_3
P(10)
UART_ENN_4
P(10)
ISP_WT
DC VOLTAGE
UNDER 3.3
RESERVED
R565
4.7K
TP229
J15
BASE/4P/2.0mm
1
2
3
4
R609
150/0.5W
TP63
1
1
R505
33
TP62
1
1
R583
NC/4.7K
2
1
3
SOT 23
Q34
NC/EM6353
SOT-23
1
3
2
R570
33
R537
0
R539
33
C510
100uF/16
V
1
2
SW2
NC/SW1_4P
Reset
1
2
3
4
R572
NC/1K
C508
100uF/16
V
1
2
U39
WT6702_24PIN
32KOSCI
2
32KOSCO
1
GPIOA0/AD0
22
GPIOA1/AD1
21
GPIOA2/AD2
20
GPIOA3/AD3/IR
19
GPIOC0/PWM0
6
GPIOC1/PWM1
5
V
DD_RTC
24
GPIOB5/HSYNC
9
GPIOA4/SC
L
3/P1.0
18
GPIOA5/SDA3/P1.1
17
GPIOB6/IRQ2/TXD
8
GPIOB4/
V
SYNC
10
V
DD
23
V
SS
3
GPIOB2/IRQ0/P1.2
12
GPIOB3/IRQ1/P1.3
11
GPIOB7/IRQ3/RXD
7
NRST
4
GPIOB1/SDA2
13
GPIOB0/SC
L
2
14
GPIOA6/SC
L
1
16
GPIOA7/SDA1
15
R608
120/0.5W
TP64
1
1
U40
APE1117-33CY/SOT-223/
SOT223
OUT
2
IN
3
GND
1
TAB
4
R343
33
TP65
1
1
R344
33
R509
33
R523
33
C505
22pF
R573
33
R524
33
R601
4.7K
R512
33
L
51 FB/1206/19-ohm
RP25
RP4K7X4
1
2
3
4
5 6 7 8
R569
33
R513
NC/1M
R531
33
R508
33
C509
0.1uF
R574
33
R540
10K
1
2
X2
32.768KHZ
C512
0.1UF
R510
33
C511
0.1uF
1
1
2
2
R530
33
C506
22pF
D39
IN4148/DIODE/SMD
2
1
C514
4.7UF/35
V
R514
33
C513
NC/100u/16
V