Johansson 6504 User manual

FEATURES
- Designed for both digital and analogue channels,
- 3 UHF input / 1 output,
- 10 programmable clusters,
- Each cluster can have 1 to 7 channels bandwidth,
- Easy programming by using one rotary / push button viewed on 2 digits display and LEDs for each cluster,
- Accurate equalization of levels using 1 dB step attenuators,
- Switchable 20 dB input amplifier to attenuate high input signals,
- Selectable DC power pass on each input.
Multi Channel Programmable Filter-Equalizer
R
User Manual
Ref. : 6504UK
Digital
Terrestrial
1
32
3232
32
Split Input
MULTI CHANNEL PROGRAMMABLE FILTER-EQUALIZER
OUT
Filter-Input Selection
Start
Stop
UHF1
Attenuator
Exit
UHF2 UHF3
DC1
R
Ref. : 6504
Digital
Terrestrial
DC2
DC3
GND
+
+5V /500 mA
1
2 3 45 6 7 8 910
UHF1
UHF2
UHF3

SAFETY INSTRUCTIONS
Read carefully these instructions before connecting the unit.
The operating voltage is indicated on the adapter.
To prevent fire, short circuit, shock hazard:
Do not expose the unit to rain or moisture.
Install the unit in a dry location without infiltration or condensation of water.
Do not expose it to dripping or splashing.
Do not place objects filled with liquids, such as vases, on the apparatus.
If any liquid should accidentally fall into the cabinet, disconnect the power plug.
Refer toqualified technician before it's further operation.
To avoid any risk of overheating:
Install the unit in a well aery location and keep a minimum distance of 15 cm around the apparatus for
sufficient ventilation.
Do not place any items such as newspapers, table-cloths, curtains ... on the unit that might cover the ventilation holes.
The unit must not be exposed to any source of heat (sun, heater,...).
Do not place any naked flame sources, such as lighted candles, on the apparatus.
Do not install the product in a dusty place.
Pull out power plug to make the different connections of cables.
To avoid electrical shock, do not open the housing of adapter.
Cleaning :
Only use a dry soft cloth to clean the cabinet. Do not use solvent.
Servicing :
For repairing and servicing refer to qualifiedpersonnel.
98 mm.
Mounting
2
WARNING !
Use only supplied power
adapter.
A different voltage and/or
wrong polarity destroys
the equalizer
beyond repair!
177 mm.
Grounding
32
3232
32
Split Input
MULTI CHANNEL PROGRAMMABLE FILTER-EQUALIZER
OUT
Filter-Input Selection
Start
Stop
UHF1
Attenuator
Exit
UHF2 UHF3
DC1
R
Ref. : 6504
Digital
Terrestrial
DC2
DC3
GND
+
+5V /500 mA
1 2 3 45 6 7 8 9 10
UHF1
UHF2
UHF3

WARNING! Live parts inside
10 dB 30 dB 30 dB 50 dB
+12VDC
Output
B I-II B III UHF
7752UK
Test
-30 d B
Digital
Terrestrial
20 dB 40 dB
DESCRIPTION
UHF1
3
Grounding
B I / B II DAB
2 Digits Display
UHF2 UHF3
Mode / Funcion LEDs
+5V
LEDs for Clusters
DC Power pass
Switches
DC
Rotary / Push button
Mains
230-240 V~
DC DC DC
Headend
Amplifier
DC
32
3232
32
Split Input
MULTI CHANNEL PROGRAMMABLE FILTER-EQUALIZER
OUT
Filter-Input Selection
Start
Stop
UHF1
Attenuator
Exit
UHF2 UHF3
DC1
R
Ref. : 6504
Digital
Terrestrial
DC2
DC3
GND
+
+5V /500 mA
1 2 3 45 6 7 8 9 10
UHF1
UHF2
UHF3
Multiband Amplifier

OPERATION
All parameters are set with the rotary push button.
Each function and parameters are shown on 2 digits display and different LEDs .
Programming
- Makeall the necessary connections and connect the equalizer tomains.
- Push on the rotary button for more than 3 seconds to enter into programming mode.
3sec.
- Turn the button to select the desired mode.
- Pushthe rotary button to enter the selected mode.
- Inside the mode, turn the button to select the parameter (input, cluster, channels, level...)
1 2 3 4 56 7 8 9 10
- Push the button to confirm the parameter setting.
- Turn the button to select Exit mode.
The software version is displayed,
Mode is indicated with
a GREEN colored LED.
The LED is now RED colored.
Cluster LEDs
Display
LED returns to a GREEN color.
- Push the button to confirm.
A dot is displayed.
Note :
The equalizer will go in "stand-by" and will display a dot after 1 minute if the rotary / push button is not activated.
followed by a dot.
= green LED
= red LED
4
Repeat this section to set all parameters
Enter programming modeExit programming mode
The LED is green.
Split Input
Filter-Input Selection
Start
Stop
Attenuator
Exit
Split Input
Filter-Input Selection
Start
Stop
Attenuator
Exit
Split Input
Filter-Input Selection
Start
Stop
Attenuator
Exit
Split Input
Filter-Input Selection
Start
Stop
Attenuator
Exit

CLUSTER PROGRAMMING
Setting clusters / UHFinput
- The equalizer has 3 UHF input which are splitted over 10 clusters.
There are three possibleconfigurations :
To set the number of cluster(s) per input :
1 2 3 4 56 7 8 9 10
- Turn the button to select Split Input mode.
- Push the button to confirm.
5
Input
Number of
cluster(s)
UHF1
2
2
2
UHF2
8
7
5
UHF3
0
1
3
The LED is green.
- Turn the button to set one configuration :
The LED is red.
UHF1 cluster indicator
Notes :
- UHF1 is set for 2 clusters, UHF2 and UHF3 are set for different number ofcluster(s).
- Eachcluster can be switched off(Park function).
For example if you only need one cluster for UHF1, set the second cluster on channel 00 to switch it off
(see following paragraph "Setting channels / cluster").
- Push the button to confirm.
UHF1 clusters are indicated by the YELLOW LEDs n° 1 and 2.
UHF2 clusters are indicatedby the RED LEDsn° 3,4,5,6,7,8,9 and10.
UHF3 clusters are indicated by the GREEN LEDs n° 8,9 and 10.
UHF2 cluster indicator
UHF3 cluster indicator
Split Input
Split Input
The LED is green.
Split Input

- Turn the button to select the Filter - Input Selection mode.
- Pushthe rotary button to enter the selected mode.
- Inside the mode, turn the button to select the cluster to be set.
The LED is now RED colored.
Display
6
Repeat this section to set all clusters
Setting channels / cluster
Each cluster has a bandwidth which can be programmed from 1 to 7 channels :
To set the channel(s) per cluster :
1 2 3 4 56 7 8 9 10
- Turn the button to select the Start mode.
- Pushthe rotary button to enter the selected mode.
The LED is now RED colored.
- Turn the buttonto selectthe start channel
Display
- Turn the button to select the Stop mode.
- Pushthe rotary button to enter the selected mode.
- Turn the button to select the stop channel
- Push the button to confirm.
- Push the button to confirm.
LED n° 1
The LED is green.
The LED is green.
The LED is green.
The LED is green.
- Push the button to confirm.
In the following example cluster 1 is set for channel 22 to channel 26.
Filter-Input Selection
Filter-Input Selection
Mode is indicated with
a GREEN colored LED.
= green LED
= red LED
Filter-Input Selection
Start
Start
Start
Stop
The LED is now RED colored.
Stop
The LED is green.
Stop

7
Notes :
- Single channel mode :
When the Start Channel is selected, the Stop Channel is automatically set atthe same value.
- Park function : to switch off the cluster, select Start Channel and set 00.
The
Stop Channel goes automaticaly to 00.
- If there are overlapping clusters, the display dots will blink alternately.
channel
ch29
ch25
ch22 ch26
Cluster 1 = ch 22 to ch 26
Cluster 2 = ch 25 to ch 29
cluster 2
cluster 1
Start
Start
Start

8
To check the channel settings of each cluster :
- Turn the button to choose the cluster to be checked.
1 2 3 4 5 6 7 8 9 10
- The display shows the channels which have been set.
Examples :
- Push the button to exit.
Cluster is parked.
Cluster is set to channel 22.
Blinking 22 and 26:
cluster is set from 22 to 26.
- Turn the button to select the Filter - Input Selection mode.
- Push the rotary button to enter the selected mode.
The LED is now RED colored.
Filter-Input Selection
Filter-Input Selection
The LED is GREEN.
Filter-Input Selection
The LED is GREEN.

9
LEVEL ADJUSTMENT
- Turn the button to select cluster 2.
1 2 3 4 5 6 7 8 9 10
LED is activated
- Push the button to confirm.
- Turn the button to select the Attenuator mode.
- Push the rotary button to enter the selected mode.
- Turn the button to set the level, variable from 30 dB to 0 dB.
Level setting
- Push the button to confirm.
Repeat this section to set all levels
To set the level.
- Select the desired cluster.
Example : setting the level of cluster 2
- Turn the button to select the Filter - Input Selection mode.
- Pushthe rotary button to enter the selected mode.
The LED is now RED colored.
Filter-Input Selection
Filter-Input Selection
The LED is GREEN.
Filter-Input Selection
The LED is GREEN.
The LED is now RED colored.
Attenuator
Attenuator
The LED is GREEN.
Note :
'30' is for maximum gain,
'18' indicates 12 dB attenuator.
Attenuator
The LED is GREEN.

10
Each input has a20 dB switchable amplifier. This is used as aditional 20 dB attenuator for high levels up to 95 dBµV.
Input Amplifier
- Select the input to be attenuated.
1 2 3 4 5 6 7 8 9 10
1
- Push the button to confirm.
- Turn the button to select the
Attenuator
mode.
- Pushthe rotary button to enter the selected mode.
- Turn the button to switch off the 20 dB amplifier.
- Push the button to confirm.
To switch off the input amplifier.
- Turn the button to select the Filter - Input Selection mode.
- Push the rotary button to enter the selected mode.
The LED is now RED colored.
Filter-Input Selection
Filter-Input Selection
The LED is GREEN.
2
3
All LEDs of selected input areactivated
Filter-Input Selection
The LED is GREEN.
The LED is now RED colored.
Attenuator
Attenuator
The LED is GREEN.
Attenuator
The LED is GREEN.
In 'OFF' position
the input signal is
20 dB attenuated.
- Turn thebutton to selectthe input.
Turn continuously the button through every cluster
to have access to the input selection.

11
GENERAL RESET
This function can reset all clusters and attenuators to zero.
- Disconnect the mains power.
- Keep on pressing the button,
- until the mains is connected again.
- Release the button.
The software version is now displayed
followed by a dot.
32
3232
32
Split Input
MULTI CHANNEL PROGRAMMABLE FILTER-EQUALIZER
OUT
Filter-Input Selection
Start
Stop
UHF1
Attenuator
Exit
UHF2 UHF3
DC1
R
Ref. : 6504
Digital
Terrestrial
DC2
DC3
GND
+
+5V /500 mA
1 2 3 4 567 8 9 10
UHF1
UHF2
UHF3
32
3232
32
Split Input
MULTI CHANNEL PROGRAMMABLE FILTER-EQUALIZER
OUT
Filter-Input Selection
Start
Stop
UHF1
Attenuator
Exit
UHF2 UHF3
DC1
R
Ref. : 6504
Digital
Terrestrial
DC2
DC3
GND
+
+5V /500 mA
1 2 3 4 567 8 9 10
UHF1
UHF2
UHF3

BLOCK DIAGRAM
12 345 6 78910
UHF 1 UHF 2 UHF 3
30 dB attenuator
DC1
OUT
20 dB input amplifier
TECHNICAL SPECIFICATIONS
Input/ Output
Number of clusters
Input
Channels
Frequency range (MHz)
Bandwidth / cluster (MHz)
Configuration of clusters
Gain (dB)
Attenuator (dB) / 1 dB step
Noise figure (dB)
Max. input level (dBµV)
Max. output level* (dBµV)
Selectivity
Return loss IN / OUT (dB)
Selectable DC power pass
Power supply
Consumption (mA)
Operating temperature (°C)
Dimensions (mm)
UHF 1
21-69
470-862
8-56 (1 to 7 Ch.)
2
2
2
5
30
6
95
75
10 dB / 10 MHz
>10
Yes
External power adapter 230-240 V~ / 5V DC / Ø2.1 DC jack
500
-5 to +50
222 x 142 x 65
Specifications aresubject to change withoutnotice. 07/06
UNITRON n.v.
Frankrijklaan 27
B-8970 Poperinge
Belgium FAX [phone]
e-mail: [email protected]
TEL [phone]
www.johansson.be
3 / 1
10
UHF2
21-69
470-862
8-56 (1 to 7 Ch.)
8
7
5
5
30
6
95
75
10 dB / 10 MHz
>10
Yes
UHF 3
21-69
470-862
8-56 (1 to 7 Ch.)
0
1
3
5
30
6
95
75
10 dB / 10 MHz
>10
Yes
DC2 DC3
* -54 dB / IM3
R