8 Product Maintenance
Always disconnect the product from the power grid and wiring before performing any
maintenance of the product. If you have to enter places with a risk of fall, pay attention to
your safety.
Use only dry cloth to clean the product and do not use any liquid agents.
Coaxial cables installed outdoors should be replaced once in a few years. Unscrew all F
connectors and clean connector contacts, resp. shorten the coaxial cable by approx. 2 cm, every 2
years.
Check the state of power supply and its mains cord periodically. If the mains cord or the
mains plug of product is damaged, it must be replaced by manufacturer or qualified
technician to prevent any dangerous situation. Let the product serviced if the housing of
power supply is damaged.
If not used for long time, disconnect the product from the power grid.
9 Troubleshooting
Always disconnect the product from the power grid before working on product, otherwise
you risk the electric hazard. Pay attention to your safety if you have to enter places with a
risk of fall.
In the case the product does not work and LED of power supply is on:
•
Check if the terrestrial and satellite antennas are correctly fixed, optimally set and
connected to the product, satellite and terrestrial receivers turned on, plugged on and
correctly set.
•
Check the connector connections. The inner conductor of coaxial cable must be in
contact with the inner conductor of F socket and the shielding of coaxial cable with F
connector. Replace broken or interrupted coaxial cable.
•
Sometimes the reset of the multiswitch microprocessor is enough to fix the problem.
Pull out the power plug of the multiswitch and satellite receiver from power grid and
then re-plug them a few seconds later.
In the case the product does not work and LED of power supply is off or blinks:
•
Check that the product is connected to the power grid with AC voltage. If not, connect
the product to the power grid with correct AC voltage.
•
Disconnect the product from the power grid and check that there is no short-circuit on
the input satellite coaxial cables, which prevents the power supplying of LNBs. If yes,
remove short-circuit and re-plug the product into the power grid again.
•
The power supply can fail temporarily in case of overload or overheating. The cause can
be current consumption of devices connected to the satellite inputs of product which
exceeds the specifications, see section 2 Product Specifications. The next cause can be
the overheating of product in consequence of wrong installation, see section 4 Product
Storing and Installation. Disconnect the product from the power grid, remove the cause,
and re-plug the product into the power grid after a few minutes again.
If the failure cannot be removed, please contact your distributor.
Power Supply Specifications
P3U27
Input Voltage
90-265 V AC, 50/60 Hz
Output Voltage
18 V DC, 12 V DC, 5 V DC
Maximum Output Current
1.0 A (18 V DC), 0.5 A (12 V DC), 0.5 A (5 V DC)
Maximum Output Power
27 W
Efficiency
75% min
Dimensions (w,d,h)
12.6 x 15.2 x 8.7 cm (power cord length 130 cm)
Temperature Range
-30 - +70 °C
3 Product Takeover
Make sure that the product is not damaged and following accessories are enclosed:
•
75 Ω loads for the impedance matching of unused outputs (2 pcs, others can be ordered
from EMP-Centauri, code 1000066)
In the case of damage or missing accessories please contact your dealer.
4 Product Storing and Installation
The product must not be stored and installed:
•
in the place with excessive humidity
•
in the place with excessive dust pollution, mechanical vibrations or impacts
•
in the place out of temperature limits specified in the section 2 Technical Specifications
•
close to heat sources (radiators or air ventilators, direct sunshine etc.)
•
in the reach of children
Do not expose the apparatus to dripping or splashing. Use the aparatus only in moderate climates
(not in tropical climate). Fix the product firmly on a wall or another hard and inflammable surface
with screws and dowels.
The mains socket must be placed near the product. The mains plug
shall remain readily operable. The mains socket and plug must be easily available.
•
The product shall be in no case held only by the connected cables.
•
Ensure the free space for the air circulation (space on sides and bellow the product
should be at least 20 cm and the space over its top at least 50 cm).
•
Do not cover the product (with curtains etc.).
•
Do not place any containers with liquids (vases, glasses etc.) or naked flame sources
(lighted candle etc.) on the product or near the product.
5 Product Connection
Connect the product in accordance with this manual and valid regulation in you country. Use high
quality 75 Ω coaxial cable designed for satellite reception. Mount the F connectors (screw, crimp
or compress type) on the ends of coaxial cables, in the case of using the screw F connectors
proceed according to the following picture and instructions:
1. Remove the outer coaxial cable coating in the length of approx. 15 mm.
2. Roll up the metal shielding braid and the shielding foil underneath and cut the shielding
with scissors to approx. 5 mm.
6 z 8
3 z 8
