Haier LE43B7600A Service Manual page 53

Factory UART & I2C Switch IC
to HDMI Pin-14 for ARC
R576
UART_SEL
11 UART_SEL
60.4K 1%
R575
40.2K 1/16W 1%
(Schematic change)
簿埃U507
簿埃R506,R507,R572,C506
簿埃ARC_on/off net, +3.3V_Standby net, DVDD3V3 net
HDMI ARC Function
5
HDMI ARC
DC voltage level = 4V
Signal voltage p-p = 500 mV +-100mV
(Test
Tr,Tf <= 60 ns
+5V_Standby
+5V_Standby
(Schematic change)
埃UART_SEL_MCU net.
R570
10K +-1% 1/16W
HDMI1-SCL/RX
Q504
LMBT3904LT1G
HDMI1-SDA/TX
D501
+5V_Standby
BAS316
HDMI1-SCL/RX R578
11 HDMI1-SCL/RX
NC 0R05 1/16W
HDMI1-SDA/TX R579
11 HDMI1-SDA/TX
NC 0R05 1/16W
HDMI1-ARC
HDMI1-ARC
Grounding
Grounding
need add 55 ohm terminal resistor to GND)
R571
10K +-1% 1/16W
U508
6 4
HDMI1-SCL
/E 2Y 3
11
HDMI1-SDA
1Y 3
9
S1
S1
10 2 UART-RX
S0
S0 2Y 2
15 UART-TX
1Y 2
3
2Z
13 5
1Z 2Y 1 HDMI
14
pin14
1Y 1
8
GND
NC/ARC
7 1
VEE 2Y 0
16 12
VCC 1Y 0
+12V
C505
74HC4052PW
100NF 16V
HDMI1-SCL
For Philips:
HDMI1-SDA R493 and
R494 use
5/31
0ohm
For ARC
R566 C507
0R05 OHM 1UF 10% 16V
R577
NC
T P V ( Top
絬 隔 瓜 絪 腹
Key Component 09. HDMI DEBUG PORT
Date Thursday , April 02, 2015
53
HDMI1-SCL 5
R569 10K +-1% 1/16W
+5V_Standby
HDMI1-SDA 5
R568 10K +-1% 1/16W
UART-RX 5,15
UART-TX 5,15
S0 S1
CHANNEL
H H
HDMI function
L H
Debug mode
+HDMI1/5V
R573
NC/10K 1%
UART_SEL
R574
NC/39K
Victory Electronics Co . , Ltd. ) OEM MODEL
TPV MODEL
PCB NAME
Sheet 9 of
Size B
Rev A
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称 爹
16