ViewSonic VA1930wm-1, Service Manual

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ViewSonic Corporation Confidential - Do Not Copy
VA1930wm-1
2
56
13 CT I Timing resistor and capacitor for operation and striking frequency
14 GNDA Ground for analog signals
15 DRV2 O Drive output
16 PGND Ground for power paths
7.3 U105(TSUM56AL-LF-1)
Pin Symbol I/O Description
1 NC Not connected
2 GND Ground
3 NC Not connected
4 NC Not connected
5 GND Ground
6 NC Not connected
7 NC Not connected
8 AVDD_DC I ADC Power
9 NC Not connected
10 NC Not connected
11 GND Ground
12 NC Not connected
13 NC Not connected
14 AVDD_DC I ADC Power
15 REXT External resistor 390 ohm to AVDD_ADC
16 AVDD_PLL I PLL Power
17 BIN0M I Reference ground for analog blue input
18 BIN0P I Analog blue input
19 GIN0M I Reference ground for analog green input
20 GIN0P I Analog green input
21 SOGIN0 I Sync-on-green input
22 RIN0M I Reference ground for analog red input
23 RIN0P I Analog red input
24 AVDD_ADC I ADC Power
25 REFM Internal ADC bottom de-coupling pin
26 REFP Internal ADC top de-coupling pin
27 HSYNC0 I Analog HSYNC input
28 VSYNC0 I Analog VSYNC input
29 GND Ground
30 DDCA_SDA/RS232_TX I/O
DDC Data for Analog Interface; 4mA driving
strength/UART Transmitter/GPIO
31 DDCA_SCL/RS232_RX I/O
DDC Clock for Analog Interface/UART
Receiver/GPIO
32 VDDP I Digital Output Power
33 GND Ground
34 VDDC I Digital Core Power
35 GPIO_P15/PWM0 I/O
General Purpose Input/Output; 4mA driving
strength/Pulse Width Modulation Output; 4mA driving
36 NC Not Connected