Adder Technology AV Series User Manual

In operation, the AdderLink AV modules are designed to be completely 
transparent - high quality video and audio from the source PC system are played 
as normal, the only difference is that they are now being seen and heard up to 
300 metres away. 

All AdderLink AV modules are 
equipped with two indicators to 
confirm operation and, if necessary, 
assist with quick troubleshooting of 
potential problems.
The indicators are located on one of 
the end panels, near to the 

 port and 

operate as follows:

•  

  When lit

*, indicates the 

presence of power into the module,

•  

  When lit, indicates the 

presence of a video input into the 
module.  

The brightness and sharpness adjustments 
provided on every AdderLink AV receiver allow 
you to compensate for any losses incurred 
within long cable links. These two adjustments 
can be made in any order and independently 
of each other.
When making adjustments it is necessary to 
have access to the AdderLink AV receiver and 
to be able to view one or both connected 
display screens. Both adjustments, sharpness 
in particular, are made easier when viewing 
high contrast images with vertical edges, such 
as black lines on a white background.
NOTE: Both video outputs are equally affected by your brightness and/or 
sharpness adjustments. 

•  Open a word processor, type the capital 

letter ‘H’, or ‘M’ and increase the point 
size to 72 or higher. For best results, the 
background should be white and the 
character should be black. 

•  A BLACK shadow on the right of the 

character indicates UNDER compensation. 

•  A WHITE shadow on the right of the 

character indicates OVER compensation.  

Video signals are susceptible to the effects of long distance cables and for 
this reason, every AdderLink AV receiver includes brightness and sharpness 
adjustment dials. Additionally, the AdderLink AV101 and AV200 receivers are 
also equipped with two extra dials to eliminate the effects of colour skew within 
the video image.

1  Carefully insert a small screwdriver into the dial labelled 

 or 

, as 

appropriate.

2  Slowly turn the dial clockwise or anticlockwise and observe the effect shown 

on the screen. Withdraw the screwdriver when the displayed image is shown 
at its optimum clarity.

3  If necessary, repeat step 2 for the other dial.   

SECT 4

* AV200 receiver only - The RED indicator has additional functions: 

•  

Fast flickering - module recently powered on and in temporary 
intermediate state.

•  

Slow flash (every second) - module is in skew compensation mode 
(see 

 for details).

•  

Continually lit - module is operating normally with its serial ports 
enabled.