The TRIM ( and ( keys are then used to adjust
the Left Front speaker level, either using the
TEST noise source (see above), or programme
material. If the TEST key is pressed the system
will cycle automatically through the channels.
If the Level is being trimmed using programme
material then the LEVEL key should be pressed
again to advance to the Centre channel
and so on until all the channels have been
trimmed, when the system will exit LEVEL
mode automatically. LEVEL trim is not active
on the 7.1 Channel input.
Delay
This key switches on DELAY setup mode and
will cycle though three channels for trimming
delays. The key is pressed once to enter delay
setup mode and select the Centre channel.
The TRIM
5
and
6
keys are then used to
adjust the delay to the Centre speaker (see
below for guidance in determining the correct
speaker delay settings). Press the DELAY key
again to advance to the Right Surround
speaker to set its delay, followed by the Left
Surround speaker. One further press of the
DELAY key will exit DELAY setup mode.
NOTE: DELAYS CAN ONLY BE SET TO THE
CENTRE, RIGHT SURROUND AND LEFT
SURROUND SPEAKERS. THE DELAYS ARE
NOT ACTIVE ON THE
7.1
CHANNEL INPUT.
On screen display and front panel
display set-up menus
The Set-Up Menus are accessed by pressing
the MENU key on the remote controller.
The UP, DOWN, LEFT and RIGHT arrow
keys (
5
,
6
,
3
,
4
) are used to navigate in the
menus. The Menus are shown below as they
appear on the On Screen Display (OSD).
The UP (
5
) and DOWN (
6
) keys are
used to move the cursor in the menu to
highlight a sub-menu or function to be
adjusted. To select a sub-menu SEL key in
the middle of the cursor keys is pressed.
The functions are adjusted using LEFT (
3
)
and RIGHT (
4
) keys. The EXIT key escapes
from the menu without saving.
The front panel display will show only the
title line and one other line of the menu,
commencing with the top line. The UP (
5
)
and DOWN (
6
) keys may be used to select
the other lines of the menu to access a sub-
menu or function to be adjusted (using the
SEL and LEFT (
3
) and RIGHT (
4
) keys as
described above). In this way all setting-up
can be done using just the front panel
display if desired.
Main menu
The main menu lists sub-menus that can be
highlighted using the UP and DOWN keys
and accessed by pressing the SEL key.
•
Tone Controls include Bass and
Treble controls
•
Level setup defines the speaker levels
•
Delay setup sets the delays for Centre, Left
Surround and Right Surround speakers
•
Source setup defines source-
related parameters
•
Display setup sets video formats and
defines how the On Screen Display works
•
Trigger setup sets the parameters for
the TRIGGER outputs
•
EXIT returns to normal operation mode
Tone controls
•
Bass can be adjusted between a 12dB
cut (–12dB) and a 12dB boost (+12dB),
in 1dB steps.
•
Treble can be adjusted between a 12dB
cut and a 12dB boost, in 1dB steps.
•
EXIT returns to the main menu
Level setup
•
The speaker levels can be adjusted by
pressing the LEFT (
3
) and
RIGHT (
4
) keys.
•
The subwoofer level refers to the signal
level sent to the subwoofer.
•
The LFE level refers to the level of
redirected bass from the LFE channel
to the large speakers in cases when
there is no Subwoofer. (LFE = Low
Frequency Effects channel. This is the
“0.1” of the 5.1 channel digital surround
signal and so is only present with Dolby
Digital or DTS 5.1 channel sources.)
•
The range of adjustment is –10dB to
+15dB, except for the LFE channel which
may only be adjusted from –10dB to 0dB
•
The noise test signal is engaged by selecting
Test signal and pressing either the
LEFT (
3
) and RIGHT (
4
) keys. This will
start the test signal cycling through the
channels exactly as when the TEST key is
pressed (see above), but in this case level
adjustments are made using the LEFT (
3
)
and RIGHT (
4
) keys.
•
EXIT returns to the main menu
Delay setup
•
The Centre, Right Surround and Left
Surround speaker delays can be adjusted
by pressing the LEFT and RIGHT keys.
The range of adjustment is 0 to 5ms
for the Centre channel and 0 to 15ms
for the Right Surround and Left
Surround channels.
•
The Left and Right Front speakers should
normally be positioned so that they are
further away from the listening position
than the other speakers.
•
The delays are calculated by measuring
the distance from the listening position
to each of the speakers. These figures are
entered in the table below. Place the Left
and Right speakers at an equal distance
from the listening position. Measure the
distances from the listening position to
each of the speakers and write them in
the table below. Write the Left/Right Front
speaker distance down three times, in each
of the boxes in the top row. See next page.
9
8
The calculation of the correct delays is
illustrated by an example. The Left and Right
Front speakers are 3m from the listener, the
Centre speaker is 2m and the Right and
Left surrounds are 3m and 4m respectively.
Example delay setup
Having written down these distances in the
table, the next step is to subtract each of the
speaker distances from the figure for the
Left/Right speakers. So, (L/R Front – Centre)
= 1m, (L/R Front – Right Surround) = 0m and
(L/R Front – Left Surround) = –1m. The
required delay for each speaker is calculated
by multiplying this figure by 3 as shown in
the example table above. If the calculated
distance is negative (i.e. if the speaker is set
further away than the Left/Right Front
speakers) then set the delay to zero as shown
(or re-position the speakers).
•
EXIT returns to the main menu
NOTE: IF YOU PREFER TO MEASURE ALL
THE DISTANCES IN FEET, THE PROCEDURE
IS EXACTLY THE SAME AS DESCRIBED
ABOVE, EXCEPT THAT THE FINAL
Source setup
•
The Source Setup specifies the parameters
for each analogue source. This includes
which digital input is assigned to each
source, and also the analogue input
sensitivity. In addition it is possible to
change the name of a source as it appears
in the On Screen and Front Panel displays.
•
When Source is selected the LEFT and
RIGHT keys may be used to select which
of the eight analogue sources is to be
set up (Tuner, CD, DVD, TV, VCR, SAT,
Aux1, Aux2).
•
When Title is selected the source Title may
be edited, if desired. Press SEL and use
the LEFT and RIGHT keys to choose which
character is to be changed, and the Up
and DOWN keys to change the character.
When the editing is completed press SEL
to store the new name. The table below
lists the default names for all the sources
and provides a column to enter any new
names programmed.
•
When Digital is selected the LEFT and
RIGHT keys may be used to select which
of the six digital sources is assigned to the
analogue source being set up. A digital
source may be assigned to more than one
analogue source if desired.
•
When “Analog. sens.” is selected, the input
gain of the Analogue to Digital converter
may be adjusted. The gain may be set to
–6dB, –3dB, 0dB or +3dB. For CD players
and other sources with a similar signal
level, a setting of –3dB or –6dB is
recommended. This ensures an adequate
overload margin – typically 3Vrms with
–3dB and 4Vrms with –6dB. If the signal
source has a lower level, then the input
gain may be set higher – to 0dB or +3dB –
which will result in a reduced level of
background noise. If distortion is
encountered on loud signals with an
analogue source, re-set the “Analog. sens.”
to a lower level. The MDP 500 is supplied
with all input sensitivities set to –3dB
which should be suitable for most sources
•
EXIT returns to the main menu
See table next page
Main menu
Tone controls
Level setup
Delay setup
Speaker setup
Source setup
Display setup
Trigger setup
Exit
Tone controls
Bass
0
Treble
0
Exit
Level setup
Left
0
Centre
0
Right
Right sur.
0
Left sur.
0
Subwoofer
LFE
0
Test signal
Exit
Speaker setup
Left
Large
Centre
Small
Right
Large
Right sur.
Small
Left sur.
Small
Subwoofer
Yes
Sub freq.
6
0
E-bass
On
Exit
Delay setup
Centre
0
Right sur.
0
Exit
Distance to listening position (m)
Speaker
Centre
Right
Left
surr.
surr.
Left and
3m
3m
3m
right front
Centre
– 2m
Right
– 3m
surround
Left
surround
– 4m
(L/R front)
1m
0m
– 1m
-(Ctr or surr)
X
3
=delay in ms
3ms
0ms
0ms
CALCULATED DISTANCE (IN FEET) SHOULD
NOT BE MULTIPLIED BY
3
. THE EXAMPLE
TABLE WITH DISTANCES IN FEET WOULD
READ AS FOLLOWS:
Example delay table (ft)
Speaker setup
•
The speaker setup defines which speakers
can take full scale low frequency signals as
in the case of “Large” speakers or if the
bass from these channels must be
redirected to those which do have “Large”
speakers and/or a subwoofer.
•
The speakers that can take full frequency
signal are set to be Large.
•
The speakers that cannot take full signal
are set to Small. The bass from these
speakers is redirected to Large speakers
and / or subwoofer.
•
If a speaker is not present (e.g. Centre)
it should be set to “None”.
•
The subwoofer crossover frequency can
be set between 40Hz and 140Hz. The
crossover frequency defines the frequency
below which the low frequencies from
Small speakers are redirected to Large
speakers and/or subwoofer.
•
E-Bass duplicates the subwoofer
information to both large speakers
and the subwoofer. This may be desired
in some cases to get more bass out of
the system.
•
EXIT returns to the main menu
Source setup
Source:
7
Title:
CD
Digital:
Coax
1
Analog sens:
-
6
dB
Exit
Distance to listening position (m)
Speaker
Centre
Right
Left
surr.
surr.
Left and
m
m
m
right front
Centre
– m
Right
– m
surround
Left
surround
– m
(L/R front)
-(Ctr or surr)
X
3
=delay in ms
Distance to listening position (m)
Speaker
Centre
Right
Left
surr.
surr.
Left and
10ft
10ft
10ft
right front
Centre
– 7ft
Right
– 10ft
surround
Left
surround
– 13ft
(L/R front)
3ft
0ft
– 3ft
-(Ctr or surr)
X
3
=delay in ms
3ms
0ms
0ms
English MDP 500 ok 29/1/01 10:14 am Page 8