CW-4142 QPSK DEMODULATOR
All the above parameters give information about
the internal parameters of the demodulator and the
received program. These parameters are not
adjustable.
COLOUR BAR
Off
On
With the colour bars switched to
On
, when
receiving radio programs the demodulator delivers
standard vertical colour bars with 75 % saturation
for measurement purposes.
Version numbers:
FWS
(Firmware System)
FWA
(Firmware Audio)
DEV
(MPEG Decoder Chip Version)
SW
(Software
Version)
The above parameters serve for information
purposes only.
Error codes:
ERROR CODE: 0
...
255
XXXXXXXX
The error codes indicate the internal error states of
the receiver, for use at repair. The error code can
be reset with the
W
or
X
button. On resetting, the
SYSTEM ERROR
LED ceases flashing. Should
the demodulator continue defective operation,
restart it with switching off and on. If an error
occurs during initialization, the control circuitry
inhibits the operation.
6. Service menu
The Service menu can be selected in the
SELECT MENU
item by pushing the
X
button
twice. Here, the bus address of the unit can be set,
that is important when establishing remote control
from the PC through bus.
Further the type number, serial number and
software version of the unit can be checked.
7. Important information
The
CW-4142 QPSK DEMODULATOR
continuously monitors in the input stream the
Program Map Table (PMT), which describes the
program content of the stream. In the case of any
change in the stream (e.g. PID change), the unit
performs the corresponding modifications in the
settings of the CA module and the MPEG-2
decoder.
This permits the demodulator to automatically
follow possible changes in the transmitter side
(e.g. regional switch-overs etc.)
The operating software of the
CW-4142 QPSK
DEMODULATOR
recognizes and supports the CA
modules belonging to the most frequently used
scrambling systems (CryptoWorks, Viaccess,
Irdeto, Nagravision etc.). In case of any problem
with recognizing some module type or module
make please contact our customer service. If the
SmartCard is removed from the CA module, the
module sends a type depending error message,,
which overrides the display for 5-6 seconds then
the original display returns.
This sequence repeats in about every 5 seconds.
After the card is inserted again, the error message
leaves off. The error message can also include
messages for set top boxes with IR remote control
e.g.
SMART CARD ERROR, PRESS OK
.
These messages should be disregarded.
If after having set it, the CA module does not
descramble for some reason, remove the card
from the module and insert it again.
The recommended sequence for setting the
CW-
4142 QPSK DEMODULATOR
:
1. Set the reception parameters: LNB Lo
frequency, reception frequency, LNB powering
and polarization, symbol rate.
If everything was made correctly, the
DEMOD
LOCKED
LED lights.
2. Minimize the frequency error in the
CARRIER FREQ. ERROR
menu item.
3. Go to the
program name display menu item
and start search as described there. As the
unit has found the first program of the packet,
insert the concerning CA module with the
card in it. In a few seconds the descrambled
picture appears on the screen.
4.
Now step the programs round, check them
on the screen, and select with the
SHIFT
button those you want to have descrambled.
Mind the described limit of descrambled
streams. When only one program has to be
descrambled selecting is not needed.
Selecting non-scrambled (FTA) programs is
not permitted by the software.
Save the settings with pushing the
STORE
button.
Further, prior to starting a new channel search or
prior to changing transponder, always remove the
module from the unit first.
Dear User!
Setting the parameters of the CW-4142 QPSK
DEMODULATOR needs care and accuracy. In case
of incorrect setting the reception of the requested
program will fail. Should you face any problem after
reading this guide please contact our customer
service.
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