VK-903 Function Control key Board. Acer AM939, AL1931


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VK-903 Function Control key Board. Acer AM939, AL1931 | Manualzz

4. VK-903 Function Control key Board

4.1 Description

The VK-903 is designed to offer a user interfaced control panel which passes and receives signals to and from VL-903 display control board.

4.2 Connector and Switch Locations

4.3 Connector type

Location Type Maker Number of pins

J1 4500-5 E&T 5

J4 4500-8 E&T 8

4.4 Connector pin Assignment

4.4.1 J1

Pin NO.

1

2

Signal

L+

L-

3 GND

4 R+

5 R-

4.4.2 J4

Pin NO.

1

2

Signal

LED-Y

LED-G

4 GND

5 KEY-POWER

8

9

6

7

KEY-AUTO

KEY-MENU

KEY-UP

KEY-DOWN

Comment

Audio Left + Channel Output

Audio Left – Channel Output

Audio GND

Audio Right + Channel Output

Audio Right - Channel Output

Comment

Power saving mode

Monitor is ON

GND

Power ON/OFF key

Auto Adjusting and Input Mode Selection

Function Selection enable

Function select and Adjust UP

Function select and Adjust Down

31

4.5 Switch definition

Location Definition

S1, S2

S3

S5

S6

S4

Power ON/OFF

Auto Adjusting and Input Mode selection

Function selection Enable

Function select and Adjust UP

Function select and Adjust Down

4.6 LED definition

Location Definition

D5 Blue for ON mode; Yellow for OFF mode; yellow for Power Saving mode; Dark for DC power OFF mode.

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