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Barco - RHDM-1701 - Maintenance Manual ______________________________________________ 19
Diagnostics
6Diagnostics
6.1 Fault finding procedure
If you detect a problem with your configuration, please check the items listed in
the user manual first.
In case of malfunction it is important to follow a certain troubleshooting
procedure. Some of the steps in this procedure may seem obvious.
Nevertheless, they are worthwhile checking. As a malfunction on one board
(module) can influence the behavior of other boards (modules), it might be
necessary to replace the same board (module) twice in the same
troubleshooting procedure.
6.2 Start here
Check the fault finding trees as presented in the User manual (included below).
If the fault finding trees of the User manual do not solve the problem, check the
following items listed in this diagnostics chapter:
• Check if the right connections are present: See the section “Connections”
• Check if the issue is related to one of the following cases:
3 In case the monitor power LED stays off, or there is no image even if the
power LED is green.: See the section “Power diagnostics”
3 In case the monitor is switched on, but nothing is displayed on the
screen: See the section “Light diagnostics”
3 In case the monitor keeps showing the no valid sync message: See the
section “Image diagnostics”
3 In case there is no communication with the monitor, and you are sure
there are no network or IP address issues: See the section “Communica-
tion diagnostics”
3 In case color is not correct or color is unstable: See the section “Color
diagnostics”
3 To verify if the IRIS board is defect, see the section “IRIS board diagnos-
tics”
6.3 Fault finding trees User Manual
6.3.1 Description fault finding trees
When the display unit is not working properly or the operation instructions do
not solve the problem, the troubleshooting may allow the user to identify the
source of the problem.
The fault finding trees are divided into three structures. They should be checked
according to the problem observed by the user:
• “No power” fault finding tree: The display unit does not seem to be powered.
No LEDs are burning and nothing is observed on the screen.
• “Nothing observed on the screen” fault finding tree: The display unit is pow-
ered but no image is shown on the screen.
• “Verify input signal” fault finding tree: The display unit works correctly, but
the applied input signal is not recognized or not displayed on the screen.