TechniSat GigaSystem 17/8 K - Handbuch (Seite 41)

41
GB
Problem Possible causes Solution
A switchable LNB is
not working Not receiving 22kHz for the
High Band or switching volta-
ge too low. - Switchable LNB can only be connected to
SAT1 (17/8 GR and KR do not have this fun-
ction).
- Connect a DiSEqC-Indicator instead of a
LNB. Check lengths of cables.
Missing transponders
or weak signals at
upper end of band Signal too weak overall and/or
significant negative slopes,
caused by long cables and
many components. - Check the signal directly at the LNB, and
then at another distribution point.
- Check your satellite level calculation, if
necessary install a 17ZR.
- Only in large installations: Have you casca-
ded too far? Check isolation calculation.
Individual distributors
not working LNB current and/or switching
criteria of the receiver. - Try connecting the receiving equipment to a
different distributor.
- Attention! Every receiver provides operating
current to its distributor.
-Use an indicator to check the receiver volta-
ge as well as the switching criteria.
Moiré in terrestrial
analogue television
picture, or no program
or „blocks“ on DVB-C
or DVB-T Input level too high, or incorrect
setting of the terrestrial ampli-
fier in the distribution chain. - Measure and check your terrestrial level cal-
culation, adjust levels.
- Try bridging the existing 17ZR.
Noise in terrestrial
analogue television
picture, or no program
or „blocks“ on DVB-C
or DVB-T Input levels too low, or incorrect
setting of terrestrial amplifiers
in distribution chain. - See Paragraph 5.2.
„Humming bars“ in
terrestrial analogue
television picture Grounding of individual compo-
nents has been made to diffe-
rent potentials (humming loop). - Initially on a trial basis, try to remove individu-
al (subordinated) grounding points.
- This rare effect can also be caused by auxili-
ary equipment with protective contacts
connected to the receiver, or by other groun-
ded reception antenna.
GigaSystem_17_8_deu_engl_23112011_3.qxp 28.11.2011 09:34 Seite 41