Specifications subject to change without notice
© Digital View Ltd – Doc Ver 1.2: 3 Dec, 2010 (AVP-1600_manual.doc) Page
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APPLICATION NOTES
USING THE CONTROLLER WITHOUT BUTTONS ATTACHED
This is very straightforward by following the steps below :
• Firstly setup the controller/display system with the buttons. With controls attached and display
system active make any settings for color and image position as required then switch everything
off.
• Use a jumper to close JP6 jumper, this will fix the board On.
• Refer to inverter specifications for details as to fixing brightness to a desired level, this may
require a resistor, an open circuit or closed circuit depending on inverter.
INVERTER CONNECTION
There are potentially 3 issues to consider with inverter connection:
• Power
• Enable
• Brightness
Please read the following sections for a guide to these issues.
Inverter Power: As per the table for CNB1 pin 1 is ground and pin 2 provides 12V/ 24V DC. This
should be matched with the inverter specification: see table.
CNB1
PIN DESCRIPTION
1 Ground
2 +12VDC / 24VDC
Remark: For higher power inverter, more current (for 12V / 24V) can be taken from CNA1 pin 1.
Maximum current drawn on CNA1 pin 1 and CNB1 pin 2 is 3A (24V) / 3A(12V)
Enable: This is a pin provided on some inverters for On/Off function and is used by this panel
controller for VESA DPMS compliance. If the inverter does not have an enable pin or the enable pin is
not used then DPMS will not be operational. Pin 3 should be matched to the inverters specification for
the ‘enable’ or ‘disable’ pin.
CNB1
PIN DESCRIPTION
3 Enable
Further, jumpers JB2 & JB3 should be set to match the inverters specification for the enable pin
power and High or Low setting: see table.
Ref
Purpose Note
JB2 Inverter enable voltage 1-2 H = 12V/24V, 2-3 H = 5V (Vcc), OPEN H = open collector
JB3 Inverter control 1-2 H = On, 2-3 L = On
Brightness: There are various methods for brightness control and it is important to consider the
specifications for the inverter to be used. Generally the situation is:
• Brightness can control by using a resistor or VR (Variable Resistor).
• Brightness controlled by adding a circuit such as PWM (Pulse Width Modulation).
• No adjustment of brightness is possible.
CNB1 pins 4 & 5 are available for connecting to an inverter or circuit where VR control is supported.
CNB1
PIN DESCRIPTION
4 VR WIP
5 VR A
This can then be matched with function controls (OSD switch mount) pins 3 & 4: see cable design
below .
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