Norsat International Inc. NSLK3200 ユーザーズマニュアル

Page 86

           099-20003-01OM 

Norsat

1.

If the signal quality appears low, the problem may be either with the trans-
mitted signal or with one of the transmit loopback components. This does
not necessarily indicate a problem with the transmitted signal.

2.

Inspect both the R

ED

 and the B

LUE

 cables and replace if necessary.

The LNB, located at the end of the antenna boom arm, is the first electronic
component in the receive signal path. The LNB amplifies and downconverts
the incoming satellite signal. 

Operating Range: 

130 - 170 mA

1.

If the current is < 130 mA, ensure that one end of the G

REEN

 marked

cable is plugged into the G

REEN

 marked N connector, labeled 

R

X

, on the

baseband unit, and the other end of the G

REEN

 marked cable is plugged

into the G

REEN

 marked N connector,  labeled 

R

X

, on the dish elevation

support panel.

2.

If the current is still < 130 mA, ensure that the LNB cable is connected
between the junction box and the LNB.

3.

If the current is still < 130 mA, try connecting the LNB cable to one of the
two spare LNBs that are included in the antenna box. Note that you do not
need to mount the LNB on the boom arm for this step. If the current con-
sumption returns to normal, then this would indicate a faulty LNB.

4.

If the current is still < 130 mA, try the bypass procedure described in Trou-
bleshooting chapter. If this fails, contact Norsat Customer Support.

5.

If the current consumption is > 170 mA, disconnect the cable from the
LNB. If the current consumption drops, then this would indicate a faulty
LNB.

6.

If after disconnecting the LNB cable the current is still > 170 mA, discon-
nect the other end of the cable from the antenna junction box. If the cur-
rent consumption drops, then this would indicate a fault in the cable.
Examine the cable and connectors; replace if necessary.

7.

If the current consumption is still > 170 mA, unplug the G

REEN

 marked

cable from the antenna junction box. If the current consumption drops,
then this indicates a fault in the junction box. Refer to the Troubleshooting
chapter for instructions on how to bypass the junction box, or contact Nor-
sat Customer Support.

8.

If the current consumption is still > 170 mA, unplug the other end of the
G

REEN

 marked cable from the Baseband unit. If the current consumption

drops, then this would indicate a fault in the G

REEN

 marked cable. Exam-

ine the cable and connectors; replace if necessary. If no replacement is
available, the G

REEN

 marked cable may be substituted with the B

LUE

marked cable by following the instructions in the Troubleshooting chapter.

This status field indicates the relative quality of a received DVB-S carrier.