User guide

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Further information
Troubleshooting
IfyouexperienceproblemswheninstallingorusingtheAdderLinkAVmodules,
pleasecheckthroughthissectionforapossiblesolution.Ifyourproblemisnot
listed here and you cannot resolve the issue, then please refer to the ‘Getting
assistance’section.
No video image is received at the receiver module.
•Checkthattheboththeredpowerindicatorsarelitonboththetransmitter
and receiver modules - if they are not, then there is a power problem. Both
modules require power from their supplied power adapters.
•Checkthatthegreenvideoinputindicatorsarelitonboththetransmitter
and receiver modules - if one or both are not lit, then a valid video input
signal is not present at the input to that module.
•Checkthelinkcable(s)thatconnectthetransmitterandreceivermodule(s)
for soundness and correct wiring as per the diagram in the ‘Skew
compensationadjustments’sectioninthe‘Operation’chapter.
•Ifpossible,tryusinganalternativetwistedpairlinkconnectionbetweenthe
modules.
•Ifthesharpnesscontrolissettoohigh,themonitormaynotbeableto
display a picture. Try reducing the sharpness setting. Please refer to the
‘Adjustments’sectioninthe‘SpecialConguration’chapter.
•Ifnotalreadytted,connectamonitortothe
OUT
port of the transmitter
module and check for a correct video image output.
Video image at the receiver module is distorted or shadows appear to
the right of displayed objects.
Adjustments are required to compensate for the length of the twisted pair cable
beingused.Ifvideoproblemspersist:
• Pleaserefertothe‘Brightnessandsharpnessadjustments’sectioninthe
‘Operation’chapter.
• Iftheoverallvideoimageis‘fuzzy’and/orhascolouredshadowsyoumay
need to make skew adjustments (AdderLink AV201 receivers only). This
procedure allows you to finely tune the red, green and blue video signal
timings to overcome most colour separation problems. Please refer to the
‘Skewcompensationadjustment’sectioninthe‘Operation’chapter.
Serial communications are not functioning
•CheckthatSW10ontheAV204T/AV208TissettoOFF.
Power is applied via the power supply but the module operation has
stopped.
•Eachmodulehasaninternalautomaticcut-outfusetoprotectagainst
power surges. To reset, remove power from the module for one second and
then reconnect.
No sound can be heard on the speakers connected to the receiver
module
•Ifnotalreadytted,connectspeakerstothe
OUT
port of the transmitter
module and check for a correct audio output.
•Checkthattheboththeredpowerindicatorsarelitonboththetransmitter
and receiver modules - if they are not, then there is a power problem. Both
modules require power from their supplied power adapters.
Getting assistance
Ifyouarestillexperiencingproblemsaftercheckingthelistofsolutionsinthe
Troubleshooting section then we provide a number of other solutions:
• Adder Technology website – www.adder.com
Check the Support section of our website for the latest solutions.
•Email [e-mail]
•Fax intheUK: 01954 780081
in the US: [phone]
• Phone intheUK: 01954 780044
in the US: [phone]
SECT 5