Vk-903 Function Control Key Board; Description; Connector And Switch Locations; Connector Type - Acer AL1731 Service Manual

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
J1
J4
J3
J2
D5

4.4 Connector pin Assignment

4.4.1 J1
Pin NO.
1
2
3
4
5
4.4.2 J4
Pin NO.
1
2
4
5
6
7
8
9
Type Maker
4500-5 E&T
4500-8 E&T
87502-0200 ACER
87502-0200 ACER
LED LED
Signal
L+
L-
GND
R+
R-
Signal
LED-Y
LED-G
GND
KEY-POWER
KEY-AUTO
KEY-MENU
KEY-UP
KEY-DOWN
Number of pins
5
8
2
2
3
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
30