AOC LE32H1461/20 Service Manual page 67

Factory UART & I2C Switch IC
to HDMI Pin-14 for ARC
R466
UART_SEL
NC 60.4K 1%
R467
NC 40.2K 1/16W 1%
10mil
ARC_on/of f
ARC_SPDIF
Grounding
AR C on /off en able control
L :ON-s tate
H :OFF-s tate
+5VSB
R464
NC 10K +-1% 1/16W
S0
HDMI_SCL2/RX
Q404
NC LMBT3904LT1G
HDMI_SDA2/TX
D401
+5VSB
NC BAS316
DVDD3V3
R468
10K +-1% 1/16W DVDD3V3
C443
U410
100NF 16V
1 5
OE Vcc
2
A
3 4
GND B
74CBTLV1G125GW
Grounding
+5VSB
R406
NC 10K +-1% 1/16W
U414
6
/E 2Y 3
1Y 3
9
S1
S1
10
S0 2Y 2
1Y 2
3
2Z
13
1Z 2Y 1
1Y 1
8
GND
7
VEE 2Y 0
16
VCC 1Y 0
C408
NC 74HC4052PW
NC 100NF 16V
HDMI_SCL2/RX HDMI_SCL2
R493
0R05 1/16W
HDMI_SDA2/TX HDMI_SDA2
R494
0R05 1/16W
For ARC
to HDMI Pin-14 for ARC
R470 C444
180R 1/10W 1% 1UF 25V
R471
82R 1/10W 1%
67
3,4,5,6,7,8,9,10,11,12,13,14,15,17,18 GND
3,9,10,11,12,15 +5V_SW
3,7,9 +5VSB
3,4,5,6,8,9,10,11,13,15,17,18 DVDD3V3
HDMI_SCL2
HDMI_SDA2
HDMI_SCL2/RX
HDMI_SDA2/TX
4 HDMI_SCL2
U0TX
11
HDMI_SDA2
U0RX
ARC_on/of f
2
U0RX ARC_SPDIF
UART_SEL
15 U0TX
5
HDMI
S0 S1
14
pin14
1 NC/ARC H H
HDMI function
12
+12V L H
Debug mode
For Philips:
R493 and R494 use 0ohm
UART_SEL
+5V_SW
+5VSB
DVDD3V3
HDMI_SCL2 13
HDMI_SDA2 13
HDMI_SCL2/RX 13
HDMI_SDA2/TX 13
U0TX 4
U0RX 4
ARC_on/of f 10
ARC_SPDIF 5
UART_SEL 13
CHANNEL
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