Hirschmann GHV 820 eco-power Notice D'utilisation page 7

2. Adjuster elements (Fig. 2)
a. Changing Level adjuster and equalizer:
full to right = 0 dB (delivery condition)
full to left = -20 dB Level /
18 dB Equalizer
Level
adjuster
Line
equalization
Return chan-
nel / diplex
filter input
b. Changing jumpers:
As required, the jumpers can be changed as
follows:
1
Return chan-
nel / diplex filter
input
"on":
"off":
(TV
band I):
3
Return channel configuration
"active":
"passive":
"locked":
Fig. 3: Changing jumpers
1
input /
output RC
2
Return chan-
nel / diplex filter
output
"on":
"off":
(TV
band I)
Fig. 2: Circuit board with adjuster elememts,
GHV 830 A, shown in delivery condition
3
Return channel
configuration
Note:
The input and output return channels must be
connected identically.
Typical applications:
• TV band I:
- RC / diplex filter: off (input and output)
- RC configuration: passive or locked
• RC active:
- RC / diplex filter: on (input and output)
- RC configuration: active
3. Close the housing lid:
Put the housing lid on the housing and press
all the way round. The sheet steel segments
will now be pressed against the inner wall of
the housing. Screw in the central screw.
2
output /
input RC
Level
adjuster,
output RC
Return chan-
nel / diplex
filter input
7