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As well as the subscriber output, the multi-switch incorporates 2 LEDs, which assist trou-
bleshooting in the system. The green LED indicates the power supply to the LNB. The red
LED flashes briefly once when the multi-switch has understood a command (such as a
change of transmitter) from the receiver.
Step 1: Check the status of the system
On a new installation there may be a fault in the connection between the LNB and multi-
switch.
If in a multi-subscriber system other receivers operate without problems, the fault is most
probably in the settings of the receiver. For further troubleshooting it may be helpful to
shut down all the other receivers in the system.
Step 2: Ensure the LNB power supply is present
If the message "Poor or no signal" is displayed continuously, first check the power supply
to the LNB. To do this, switch the K-Power Saving rotary switch to "OFF", or if the system
is in ECO mode, plug in a power supply unit. This ensures a continuous power supply.
If reception is now obtained, investigate the following possible faults:
Problem
Green
LED
Possible cause
Solution
No reception when
K-Power Saving
"ON"
Off
Multi-switch without
KPS is being used in
the system
KPS remains "OFF"
or use devices with the KPS logo
No reception in
ECO mode without
a power supply unit
On
Wrong LNB
Use only UAS 484 or 584
Poor DiSEqCTM
signal due to high
current consumption
Use distribution materials that do not have
additional diodes. Diode protection
must
then be ensured by use of a single cable
socket (ESU xx)
Despite K-Power Saving "OFF", still no reception can be obtained:
Problem
Green
LED
Possible cause
Solution
Continuous
message "Poor or
no signal"
Off
Short circuit at the
connection H low
from the LNB to the
multi-switch
Check the cable
On
Cables were
interchanged
Check the assignment of connections
from the LNB to the multi-switch
The correct power supply to the multi-switch receiving the Sat signals should now be
assured, and the green LED should light up. If still no reception can be obtained, the fault
may lie within the receiver and/or the connection to the multi-switch.
Possible causes of failure and correction
