TechniSat TechniRouter 9/1x8 G Montageanleitung Seite 47

Problem
The DVB-S signal
temporarily
disappears
Operational voltage
(LNB voltage from
the trunk lines) is too
low
Nothing received at
certain polarization
planes
Channels lacking or
poor signal reception
at the top end of the
bandwidth
Moiré or noise for
terrestrial analogue
TV picture, programs
missing or "blocks"
for DVB-C or -T
"Interference" in the
terrestrial analogue
TV picture
If the PIN code is used, you will be unable to exchange the unit with another
TechniRouter (unless the receiver is reprogrammed).
When ordering replacements due to the need for repair, please always quote the
serial number.
Possible causes
Your channel frequency is
used (most common cause of
periodic failure)
Another user performs a
setup procedure.
Atmospheric conditions affecting
Over long stretches, the voltage
drops via the cable, components
and sockets may be too high
Individual LNB connections or
trunk lines may be mixed up or a
central wire is too short.
You must determine whether the
level disparity occurs before or
after the TechniRouter:
Before: Transponders of around
12.7 GHz are bad.
After: Channel frequencies of
around 2096 MHz are
bad.
Input level is either too high
or
too low.
Earthing of the individual
components carried out at
varying potentials (ripple pickup).
Select another free channel using
manual frequency input selection or via
list selection
Wait
Wait
• How is the current load of the power
supply?
• Have you (for larger systems)
excessive voltage drops?
• Check the allocation and plugs.
• Verify the signal directly with the LNB
feed cables (with the receiver in
Quattro-LNB mode)
• Check the signal directly at the LNB
and subsequently at the input of the
TechniRouter.
• Also check your satellite level
calculation
• Check the socket or splitter cabling of
the output cable
• Measure and check your terrestrial
level calculation, and adjust the level
(see Point 5.2). Remove the
intermediate amplifier 9Z from the
terrestrial section on a temporary
basis.
• Use a terrestrial preamplifier.
• Remove individual earthings (initially
on a trial basis), not including those on
the initial device.
• This effect can also be caused by
additional devices connected to the
receiver with a protective ground or
other (earthed) receiving antennas
may cause this effect (rarely).
47
Solution
EN