ViewSonic N1930w-2M Service Manual page 69

8.8. HDMI Interface
For CEC Leakage Protect
Q503
R517
NC
HDMI_CEC NC
3
R519
0R/NC
HDMI Connector
P501
HDMI CON
HDMI-5V
20
SHIELD
21
SHIELD
HDMI-5V
18
+5V
17
CEC/DDC GND
HDMI-SCL
15
DDC SCL
HDMI-SDA
16
DDC SDA
HDMI_CEC
13
CEC
HDMI-HPDIN
19
HPD
22
SHIELD
2
Dat2 shield
5
Dat1 shield
8
Dat0 shield
11
clk shield
23
SHIELD
HDMI_RX0P
7
DAT0+
HDMI_RX0N
9
DAT0-
HDMI_RX1P
4
DAT1+
HDMI_RX1N
6
DAT1-
HDMI_RX2P
1
DAT2+
HDMI_RX2N
3
DAT2-
10 HDMI_CLKP
clk+
HDMI_CLKN
12
clk-
14
VCLK
Hot-Plug Control
HDMI-5V
R529
1K 0603
HDMI-HPDIN
R533
Q504 4.7K HPD_CTRL
1
MMBT3904
ViewSonic Corporation
VCC3.3V-ST
+5V_General
VCC3.3V-ST 2,6
R516
NC
R518
HDMI-CEC
2
HDMI-CEC 6
NC
1
D502
D503
D504
DDC EEPROM
2,3,4,8,15 +5V_General
+5V_General
D505
BAT54C
I502
HDMI-5V
1 8
NC1 VCC
2
NC2
7
VCLK
3
HPD_CTRL 6 NC3
6
SCL
4 5
GND SDA
24C22 SMD
66
N1930w-2M
Confidential - Do Not Copy
Update CEC Circuit
D501
NC
1p
1P
1p
R520 4R7 HDMI-RX0P
HDMI-RX0P 6
R521 4R7 HDMI-RX0N
HDMI-RX0N 6
R522 4R7 HDMI-RX1P
HDMI-RX1P 6
R523 4R7 HDMI-RX1N
HDMI-RX1N 6
R524 4R7 HDMI-RX2P
HDMI-RX2P 6
R525 4R7 HDMI-RX2N
HDMI-RX2N 6
R526 4R7 HDMI-CLKP
HDMI-CLKP 6
R527 4R7 HDMI-CLKN
HDMI-CLKN 6
R528
100R
HDMI_VCC
R530
C515 NC R531
100nF 10K
HDMI_SCL R534 100R HDMI-SCL
HDMI_SDA R535 100R HDMI-SDA
100R R536 DDC_SCL
DDC_SCL 6
100R R537 DDC_SDA
DDC_SDA 6
R538
10K
R532
10K