Meridian Audio Car Amplifier 501 User Manual

Meridian 501/501V Control Unit  
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Contents  
Introduction  
1
Introduces the 501/501V Control Unit, and  
provides an overview of the other products  
available in the Meridian 500 Series.  
Using the Control Unit 9  
The Meridian 500 Series ........................  
Sample configurations ...........................  
Specification and accessories ...............  
2
3
6
Provides step-by-step instructions on how  
to operate the control unit, using either the  
front panel or the Meridian System  
Handset.  
Using the Video Features  
(501V only) 15  
Provides information on how to use the  
Front panel ............................................. 10 video features included in the 501V  
Selecting a source ................................. 11 Control Unit.  
Adjusting the volume ............................. 12  
Changing the display and balance ........ 13 Selecting a video source........................ 16  
Recording a source................................ 14 Recording a video input ......................... 17  
iii  
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Customising the Control  
Unit  
19  
Describes how to set up the control unit in  
your preferred configuration.  
Setting up the Control  
Unit  
33  
Choosing standard settings................... 20  
Configuring the sources......................... 23 Describes how to unpack and install the  
Examples of configuring the control unit, and explains what you should  
sources .................................................. 26 do if your control unit requires servicing.  
Programming levels ............................... 28  
Specifying information about  
Unpacking .............................................. 34  
your system ........................................... 30 Connecting the control unit ................... 35  
Troubleshooting ..................................... 39  
Maintenance .......................................... 41  
Service and guarantee ........................... 42  
Index ...................................................... 43  
iv  
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Introduction  
In choosing the 501/501V Control Unit you have acquired a component  
that combines major advances in audio and engineering design. The 501  
Control Unit is a full function preamplifier for use with high performance  
analogue sources. It provides six audio inputs, each of which can be  
individually adjusted for sensitivity, and identified on the four-character  
alpha-numeric display. A very high quality MC or MM phono stage is  
available as an option for the dedicated LP input.  
In addition, the 501V Control Unit provides video switching for up to eight  
video inputs.  
This guide is designed to enable you to obtain the best possible results  
from the unit, and it includes information about customising the unit to  
your own requirements.  
If you have just purchased the 501/501V Control Unit you should first turn  
to the chapter Setting up the Control Unit, page 33, which explains how to  
unpack and install the control unit correctly.  
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The Meridian 500 Series  
The Meridian 500 Series is a unique system of digital, analogue,  
and video components designed to meet the demand for  
absolute quality, ease of use, and lasting value.  
500 Series communications  
The Meridian 500 Series includes a sophisticated  
communications link, to ensure that any configuration of units  
will work together as a fully integrated system.  
The flexibility of the Meridian 500 Series is such that you can  
assemble a system as simple or as complex as you need,  
perfectly suited to your musical and environmental requirements,  
and with the ability to add to it or change it at a later date should  
your requirements change. The 500 Series is also compatible  
with the existing Meridian 200 Series and 600 Series  
components.  
The 500 Series communications system allows you to control  
any combination of units using a single handset, and ensures  
that your commands from the handset are interpreted  
unambiguously. Any unit can be designated as the controller for  
the system, allowing you to position the other units out of range  
from the handset beam if desired. It also allows all the units to  
be switched off from the front panel of any unit in the system.  
Each Meridian 500 Series component is housed in a matching  
slim line case. Front panel controls provide access to the most  
important functions, and the full range of functions is available  
from the Meridian System Handset using a simple and intuitive  
control interface.  
Professional features  
The 500 Series also includes features for professional users,  
including RS232 computer control (501, 562, and DSP5000), and  
balanced outputs (563).  
The following pages give examples of four suggested  
configurations to illustrate the flexibility of the Meridian 500  
Series.  
2
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Sample configurations  
506 Compact Disc Player  
500 Compact Disc Transport  
A2  
A2  
506  
500  
DSP5000  
DSP5000  
504  
501  
555  
504  
562  
The 506 Compact Disc Player is an integrated CD transport and  
converter, providing both digital and analogue outputs.  
The 500 Compact Disc Transport provides a precision digital  
output, and can drive DSP5000 Digital Loudspeakers directly.  
The 506 Compact Disc Player is ideally suited for use with the  
Meridian 555 Stereo Power Amplifier and A2 Loudspeakers, with  
control over the volume and source selection provided by the  
501 Remote Control Preamplifier.  
A 562 Digital Controller can be added to cater for conventional  
analogue sources, such as the 504 FM Tuner, and provide  
source selection between up to 12 different analogue or digital  
sources.  
The 504 FM Tuner is an ideal addition to the system if radio  
reception is required.  
3
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563 Digital to Analogue Converter  
501V Control Unit  
VIDEO  
LASERDISC  
M60  
M60  
500  
563  
501V  
The digital output provided by the 500 Compact Disc Transport  
can be decoded by the 563 Digital to Analogue Converter to  
provide a high-quality audio output for use with a conventional  
audio preamplifier.  
The 501V Control Unit is a full function preamplifier for use with  
any analogue source, and includes video switching for complete  
control of systems that include video sources such as a  
LaserDisc player and video recorder.  
The 563 Digital to Analogue Converter can also decode digital  
signals from other sources, including LaserDisc players and  
Digital Audio Tape.  
It provides a high-quality audio output ideal for use with the  
Meridian M60 Active Loudspeakers.  
4
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562V Multimedia Controller  
SATELLITE  
VIDEO  
TV  
504  
500  
LASERDISC  
562V  
D6000  
D6000  
The 562V Multimedia Controller is the ideal control unit for use  
with the Meridian D6000 Digital Loudspeakers.  
conventional analogue sources such as the 504 FM Tuner and  
video sound.  
It provides direct digital inputs for digital sources, such as the  
500 Compact Disc Transport and LaserDisc sound, together  
with precision Delta Sigma Analogue to Digital Conversion, for  
It also includes video switching for CVBS and S-VHS signals,  
such as from a satellite receiver, LaserDisc player, or video  
recorder.  
5
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Specification and accessories  
Specification  
Display  
Four character display for current  
source, volume, mute, and copy  
source.  
MM input option  
Sensitivity adjustable 0.5 – 3mV for  
5cm/s @ 1kHz.  
Communications  
Two 5 pin 240° DIN sockets, RS232  
interface.  
Overload point 47mV @ 1kHz.  
Cartridge load 47k|| 100pF.  
Finish  
Black textured enamel and glass.  
MC input option  
A2 – A6 inputs  
Sensitivity adjustable 38 – 210µV for  
5cm/s @ 1kHz.  
Dimensions  
88mm x 321mm x 332mm  
(3.46" x 12.64" x 13.07").  
Cartridge load 220|| 10nF.  
Sensitivity adjustable 27 – 150mV.  
Weight  
5kg (10lbs).  
20VA.  
Input impedance 20k.  
Consumption  
Tape output  
Output 1.5V.  
Main outputs  
Headphone output  
Distortion  
Output 1.4V rms, 3V rms maximum.  
2V maximum.  
Less than 0.01% input to output.  
Noise and hum  
Less than -90dB for high-level  
analogue inputs.  
Less than -70dB for MM input.  
Less than -60dB for MC input.  
6
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Video specification (501V only)  
Available accessories  
V1 – V6 inputs  
Composite unbalanced RCA phono  
The following accessories are available from your dealer:  
75, 0.5 – 1.5Vp/p.  
MM phono module.  
S1, S2 inputs  
S-VHS 4 pin MiniDIN.  
MC phono module.  
Monitor output  
Unbalanced RCA phono 75, 1.5Vp/p  
to monitor.  
Meridian System Handset.  
Power cord Europe.  
Power cord Canada and USA.  
VCR outputs 1, 2  
Unbalanced phono 75, 1Vp/p to  
VCRs, identical signal via splitter.  
The MM and MC phono modules convert the LP audio input (A1)  
for use with a moving magnet or moving coil pickup,  
respectively.  
Main S-OUT  
S-VHS 4 pin MiniDIN.  
VCR1, VCR2 S-OUT  
S-VHS 4 pin MiniDIN, two function  
select outputs for SCART.  
The Meridian System Handset provides access to all the  
facilities provided by the 501/501V Control Unit, including those  
available from the front panel controls. In addition, it allows you  
to control any other 500 Series units in your system.  
Meridian Audio reserves the right to amend product  
specifications at any time.  
If you have problems purchasing these items, you can order  
them direct from Meridian Audio Limited, who can also supply a  
range of cables suitable for connecting the 501/501V Control  
Unit to other equipment.  
7
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8
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Using the Control Unit  
This chapter provides a visual summary of the functions of the control  
unit in order to identify and help explain each of the controls which you will  
use to operate the unit.  
It also describes how to switch on the control unit, and use it with  
conventional audio sources.  
Unless otherwise specified, each function is available from the front panel  
or the handset.  
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Front panel  
1 Source  
Selects the source.  
2 Copy  
Copies a selected source  
to the tape output.  
Display  
3 Mute  
Mutes the sound.  
BOOTHROYD STUART  
4 Display  
CD65  
501  
Blanks the display.  
Source Copy Mute Display  
Off  
Control Unit  
5 V (Decrease)  
Decreases the volume.  
6 A (Increase)  
Increases the volume.  
1
2
3
4
5
6
7
7 Off  
Switches to standby.  
10  
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Selecting a source  
During normal use the control unit should be left in the standby  
state. This uses a negligible amount of electricity, but ensures  
that the components of the control unit operate at maximum  
efficiency from the moment you start.  
For example, if you select the  
CD input the display will show:  
CD65  
By default, the following six sources are available:  
If you are not going to use the control unit for a period of several  
days you should switch the unit completely off, at the rear panel,  
and disconnect it from the AC power supply.  
Source  
CD  
Label  
CD  
RD  
LP  
Input  
A2  
Radio  
LP  
A3  
To switch on from standby  
A1  
Press Source (front panel), or select a source by pressing the  
TV  
TV  
A5  
appropriate source key on the remote control.  
Tape1  
Tape2  
T1  
A4  
If the 501/501V Control Unit is part of a Meridian system, it will  
automatically switch on any other unit in the system, such as the  
CD player.  
T2  
A6  
To switch to standby  
To select a source  
Press Off (front panel) or Standby (remote control).  
Press Source (front panel) until the display shows the source  
you require, or press the appropriate source key on the  
remote control.  
   .  
The display will show:  
If you have other Meridian 500 Series equipment connected to  
the control unit, these units will also switch to standby.  
The display shows the source, and volume setting.  
11  
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Adjusting the volume  
The 501/501V Control Unit allows you to adjust the volume in  
precise steps of 1dB, where 9dB is equivalent to doubling the  
loudness.  
To decrease the volume  
Press V (front panel), or V (remote control).  
The current volume setting is displayed in dB on the front panel  
display, and can be varied in the range 1 – 99dB. When you first  
switch on the control unit the volume is set to 65, which is  
similar to the midway position of the rotary volume control on a  
conventional preamplifier.  
CD55  
For example, the display will show:  
To mute the sound  
Press Mute.  
To increase the volume  
Mute  
Press A (front panel), or A (remote control).  
The display will show:  
To restore the sound  
Press Mute again.  
CD75  
For example, the display will show:  
Alternatively the sound will be restored if you adjust the volume.  
12  
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Changing the display and balance  
To change the display  
To change the balance  
Press Display.  
You can adjust the sound balance on the 501/501V Control Unit  
using the following procedure.  
Each time you press Display the display will step between the  
following options:  
Note: The balance can only be adjusted with the remote control.  
Display option  
Example  
Press < (remote control) to move the sound to the left.  
Source and volume.  
The display will show the number  
  ≤1  
RD65  
This is the usual display.  
of dBs added to the left channel:  
Rad  
      
Source only (full label).  
Blank.  
Press > (remote control) to move the sound to the right.  
The display will show the number  
  9≥  
of dBs added to the right channel:  
Press V (remote control) to centre the balance.  
 ≤O≥  
The display will show:  
13  
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Recording a source  
The 501/501V Control Unit allows you to copy any one of the  
standard sources to the tape outputs, independently of the  
source you are listening to.  
For example, to record a radio broadcast  
C RD  
press Copy until the display shows:  
You can now listen to a CD, by selecting the CD source, without  
affecting the recording.  
To copy a source to the tape output  
Press Copy.  
Each time you press Copy the control unit will step between the  
following options:  
Display  
Option  
Copy Source. The current source is  
fed to the tape output.  
CSrc  
Copy Attenuate. The tape output is  
muted.  
CAtt  
C CD  
C RD  
Copies the first source to the tape  
output.  
Steps through each source in turn,  
etc.  
When Copy is set to anything other than Copy Source the Copy  
indicator is illuminated on the front panel.  
14  
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Using the Video  
Features (501V only)  
This chapter explains how to use the video features in the 501V Control  
Unit to select the video source you want to watch, or to choose which  
video source to copy to a video recorder.  
Note that these instructions do not apply to the 501 Control Unit, which  
does not include the video option.  
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Selecting a video source  
With the 501V Control Unit you select the video source you want  
to watch in exactly the same way as selecting an audio source.  
To select a source  
Press Source (front panel) until the display shows the source  
you require, or press the appropriate source key on the  
remote control.  
On the 501V Control Unit each source can be associated with  
both audio input, and a video input.  
For example, by default the TV source selects audio input A5 (for  
TV sound), and video input V5 (for the TV picture).  
For example, if you select the  
TV65  
TV input the display will show:  
Last valid option  
By default, the following six video sources are available:  
The audio or video input for a source can be defined as LV (Last  
Valid), in which case selecting the source will leave the audio or  
video input unchanged.  
Source  
TV  
Label  
TV  
Video input Audio input  
V5  
V4  
V5  
V1  
V2  
V3  
A5  
A5  
LV  
A6  
A4  
A1  
Cable  
Teletext  
VCR1  
VCR2  
LD  
Cb  
For example, by default the CD source defines the video input  
as LV. This allows you to select TV followed by CD to watch the  
TV picture while listening to a compact disc, instead of the TV  
sound.  
TX  
V1  
V2  
LD  
16  
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Recording a video input  
With the 501V Control Unit you can copy the audio and video  
components of a source to the tape and VCR outputs,  
independently of the source you are listening to.  
When Copy is set to anything other than Copy Source the Copy  
indicator is illuminated on the front panel.  
For example, to record a TV programme  
C TV  
To copy a video source  
press Copy until the display shows:  
Press Copy.  
The TV sound and picture will now be fed to the tape and VCR  
outputs, respectively.  
Each time you press Copy the control unit will step between the  
following options:  
You can then select another source without affecting the  
recording.  
Display  
Option  
Copy Source. The audio and video  
components of the current source  
are fed to the tape and VCR outputs.  
CSrc  
Copy Attenuate. The tape and VCR  
outputs are muted.  
CAtt  
C CD  
C RD  
Copies the first source to the tape  
and VCR outputs.  
Steps through each source in turn,  
etc.  
17  
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18  
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Customising the Control  
Unit  
This chapter explains how to customise the 501/501V Control Unit to your  
preferred configuration.  
The simplest way of configuring the control unit is to choose one of the  
standard settings, which are designed to cater for the six most common  
configurations of sources and inputs.  
Alternatively, you can configure each source individually to suit the other  
equipment in your system. You can choose the label used for each source,  
and balance the input sensitivities so that the sound level remains the  
same when you switch between sources.  
Finally, the 501/501V Control Unit provides several settings that you can  
alter to optimise the way in which it works with the other equipment in  
your system.  
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Press  
                                                                     
V or A to change the type number.  
                                                                         
Choosing standard settings  
The 501/501V Control Unit provides six alternative standard  
settings, called Types, which configure all aspects of the control  
unit into the six most commonly needed configurations.  
To select a standard setting  
Switch off any power amplifiers that are connected to the  
control unit.  
Choosing one of the six standard settings overrides any other  
configuration you may have performed, and so can be used to  
reset the configuration of the control unit.  
Turn off the control unit, using the power switch on the back  
panel.  
Turn on the power again while holding down the Off key on  
By default, the control unit is supplied set to Type 1.  
the front panel.  
If you have a system containing only Meridian 500 Series units  
then you should choose one of Types 5, 1, 4, or 3. These give  
progressively larger numbers of inputs, as shown in the tables  
on page 21 (501) or page 22 (501V).  
Type  
The display will show:  
Ty 1  
It will then show:  
If your system includes any Meridian 600 or 200 Series units you  
should choose Type 2 or Type 6. For more information see To  
connect to Meridian 600 or 200 Series equipment, page 38.  
For example, to select Type 3  
the display shows:  
Ty 3  
Turn off the control unit using the power switch on the back  
panel.  
Turn on again to use the standard settings you have selected.  
20  
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501 standard settings  
The following table shows the options configured by the six standard Type settings on the 501 Control Unit:  
Type  
5 1 4 3  
Source Label Input Gain Comms  
CD  
CD  
RD  
LP  
TV  
T1  
A2  
A3  
A1  
A5  
A4  
A6  
A2  
A5  
=
0dB  
2dB  
2dB  
8dB  
2dB  
2dB  
0dB  
8dB  
n/a  
1
2
Radio  
LP  
TV  
Tape1  
Tape2  
CDR  
Cable  
Text  
VCR1  
VCR2  
LD  
T2  
CR  
Cb  
TX  
V1  
V2  
LD  
A6  
A4  
A1  
8dB  
8dB  
0dB  
= Last valid input, displayed as LV.  
Types 2 and 6 have the same source configuration as Type 1.  
21  
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501V standard settings  
The following table shows the options configured by the six standard Type settings on the 501V Control Unit:  
Type  
5 4 1 3  
Source Label Input Gain Comms C-video input  
S-video input FNSEL  
CD  
CD  
RD  
LP  
TV  
T1  
A2  
A3  
A1  
A5  
A4  
A6  
A2  
A5  
=
0dB  
2dB  
2dB  
8dB  
2dB  
2dB  
0dB  
8dB  
n/a  
1
2
=
=
BL  
v5  
=
=
=
v4  
v5  
v1  
v2  
v3  
=
=
=
=
=
=
=
=
=
S1  
S2  
=
=
=
=
0
Radio  
LP  
TV  
Tape1  
Tape2  
CDR  
Cable  
Text  
VCR1  
VCR2  
LD  
=
=
=
1
T2  
CR  
Cb  
TX  
V1  
V2  
LD  
0
A6  
A4  
A1  
8dB  
8dB  
0dB  
2(1)†  
2(1)†  
1
= Last valid input, displayed as LV (audio), Nv (video), NS (S-VHS), or NF (FNSEL). † 2 in Type 1, 1 in Type 3 or 4.  
22  
Types 2 and 6 have the same source configuration as Type 5.  
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Configuring the sources  
When the control unit is set to one of the standard settings the  
twelve source selection keys on the remote control select the  
standard labels and inputs, as shown in the table on page 21.  
For each source you can configure:  
The label used for it on the front panel display, from 45  
alternative labels.  
If the configuration you want is not catered for by one of the  
standard settings, you can configure each source individually.  
The audio input it selects.  
The comms type and address, to identify other Meridian 500  
Series equipment.  
The 501/501V Control Unit provides 12 sources corresponding  
to the 12 source selection keys on the remote control:  
The video and S-VHS inputs it selects (501V only).  
The procedure for doing this is as follows.  
CD, Radio, LP, TV, Tape1, Tape2, CDR, Cable, Text, VCR1,  
VCR2, and LD.  
23  
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To configure a source  
To change an option  
Turn off the control unit, using the power switch on the back  
Press Aor Vto step between the alternative values for the  
panel.  
option.  
Turn on the power again while holding down the Display key  
When you have finished programming sources:  
on the front panel.  
Switch off at the back panel, and then switch on again to  
Conf  
The display will show:  
restore normal operation.  
Press Source until the left-hand pair of characters identifies  
the source you want to configure.  
For example, to configure the CD  
CDCD  
source the display initially shows:  
Press Copy (front panel), or  
                                 
> and < (remote control), to step  
                                       
between options.  
The right-hand pair of characters shows the current value of the  
option.  
The options are summarised in the table shown opposite.  
24  
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Option  
Initial value  
Alternative values  
Explanation  
Label  
CD, RD, LP, etc.  
See page 26.  
CDCD  
Audio input  
Comms type  
Address  
A1 – A6, or LV.  
IC – 8C, or NC.  
1A – 8A.  
Choose A1 to A6 to specify the input, or LV to use  
the last valid input.  
CDA2  
CD1C  
CD1A  
CDNv  
CDNS  
CDFO  
Choose IC for a Meridian CD player, 2C for a  
Meridian FM Tuner, or NC otherwise.  
Allows you to have up to eight of each source type.  
Video input*  
S-VHS input*  
V1 – V6, Nv, or BL.  
S1 – S2, or NS.  
F0 – F2, or NF.  
Choose V1 – V6 to specify an input, Nv to use the  
last valid input, or BL to blank the input.  
Choose S1 – S2 to specify an input, or NS to use the  
last valid input.  
FNSEL output*  
* 501V only.  
Choose the function select output signal you want to  
send to the TV, or NF to use the last valid output.  
25  
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Examples of configuring the sources  
The following examples illustrate how you can configure the  
source options to your own requirements.  
For example, to configure the  
Radio source label choose:  
RDRD  
To change a source label  
Press Aor Vto step between the alternative labels.  
Display the source you want to configure, together with its  
For example, to use the label FM  
RDFM  
current label, as described in the previous sections.  
for the Radio source set it to:  
The following table shows the available source labels together with their meanings:  
Source Logo  
Source Logo  
Source Logo  
Source Logo  
Source Logo  
CD  
CD  
RD  
LP  
T1  
VCR 2  
V2  
VHS  
VH  
JB  
Rm  
DT  
DC  
Ph  
MD  
Li  
S-VHS  
SV  
βm  
Ca  
V8  
DAB  
DB  
DS  
AD  
RR  
FM  
AM  
Radio  
LP  
LaserDisc LD  
Jukebox  
CD-ROM  
DAT  
Betamax  
Camera  
Video 8  
Dig. Sat.  
ADC  
Satellite  
CDX  
SA  
C2  
78  
Tape 1  
Tape 2  
CDR  
R-Reel  
FM tuner  
AM tuner  
T2  
78 rpm  
CD-1  
DCC  
CD-Video CV  
CR  
Cb  
TX  
V1  
C1  
Phono  
MiniDisc  
Line  
Aux  
Au  
Mx  
SB  
Cable  
Teletext  
VCR 1  
CD trans. C1  
Photo CD PC  
Mixer  
Simul  
MW tuner MW  
SW tuner SW  
CD Lib.  
CL  
Mic  
Mi  
Computer PC  
LW tuner  
LW  
26  
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To change the video input for a  
source  
When you select the source you have configured you will get  
radio sound and a TV picture, as required for simultaneous  
broadcasts.  
Display the source you want to configure, together with the  
current video input, as described in the previous sections.  
To set up a system with two CD  
players  
For example, to configure  
CDLV  
the CD video input choose:  
Configure the source you are going to use for the first CD  
player.  
Press V or A to choose the video input.  
For example: Source CD, Label C1, Audio input A2, Comms  
type 1C, Address 1A.  
For example, if you always want the  
CDV5  
TV picture when you select CD set it to:  
Configure the source you are going to use for a second CD  
To set up a source for simultaneous  
broadcasts  
player, with a different address.  
For example: Source CDR, Label C2. Audio input A3, Comms  
type 1C, Address 2A.  
Choose a source you are not already using.  
Assign a suitable label to the source; SB is suggested.  
Configure the audio input to A3 (Radio).  
Configure the video input to V5 (TV).  
The remote control will now automatically control whichever of  
the CD players you have selected with the CD or CDR source  
keys.  
27  
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Programming levels  
The 501/501V Control Unit allows you to program the level of  
each source independently, to suit your other equipment, so that  
when you switch between sources the volume stays the same.  
To balance input levels  
Switch off any power amplifiers that are connected to the  
control unit.  
When you are programming levels the control unit operates as a  
preamplifier with a fixed volume setting equivalent to 65. This  
level is chosen to be comfortably loud on average sources. You  
can switch between sources and adjust the relevant input levels  
to achieve the setting you want.  
Turn off the control unit, using the power switch on the back  
panel.  
Turn on the power again while holding down the Mute key on  
the front panel.  
You can increase the sensitivity of any source by up to 15 steps  
of 1dB. The loudest source, usually CD, should therefore be  
chosen as the reference.  
Gain  
The display will show:  
Release the Mute key.  
The display will show the  
   .  
normal standby condition:  
Select the source that sounds loudest and make it your  
reference.  
Switch to another source in the usual way.  
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Use the A and V keys to change the sensitivity.  
If you know the output level of your sources you can probably  
set the gains by calculation. The following table shows the  
correspondence between the gain and sensitivity on the  
standard audio inputs and on the LP inputs:  
12dB  
For example, the display will show:  
Switch between the source you are changing and the  
Gain  
0dB  
A2-A6  
150mV  
110mV  
75mV  
LP MM  
3mV  
LP MC  
210µV  
150µV  
110µV  
75µV  
reference source until they sound equally loud.  
Repeat the procedure for your other sources.  
3dB  
2.2mV  
1.5mV  
1.1mV  
750µV  
550µV  
When you have finished programming levels, switch the  
power off and on again to restore the control unit to normal  
operation.  
6dB  
9dB  
54mV  
12dB  
15dB  
38mV  
54µV  
27mV  
38µV  
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Specifying information about your system  
In addition to configuring the sources, and programming their  
levels, you can configure many other aspects of the operation of  
the 501/501V Control Unit to suit the way your system is set up,  
and the way in which you want to use it.  
The table below shows the options you can configure.  
Option  
Initial Value  
5OO  
Communications mode (500 or 200)  
Controller mode (Auto, Con, or NCon)  
System address (1–8)  
Note that any settings that you configure are reset to standard  
values when you choose one of the standard settings: see  
Choosing standard settings, page 20.  
Auto  
SA=1  
PA=1  
Vout  
VolM  
 ≤≥N  
5O1  
To configure the control unit  
Turn off the control unit, using the power switch on the back  
Product address (1–8)  
panel.  
Turn on the power again while holding down the Display key  
Volume control (Vout or Fout)  
Volume mode (VolM or VolS)  
Menu mode (N, 1, or 2)  
on the front panel.  
Conf  
The display will show:  
It will then show the first  
5OO  
configuration option:  
Video version (501 or 501V)  
Press Copy to move between the options.  
CD?N  
200 Series CD player (N or Y)  
Press A or V to change the value of the current option.  
30  
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These settings are configured automatically to appropriate  
values when you choose one of the standard Type settings, and  
you should not normally need to alter them; see Choosing  
standard settings, page 20.  
To choose fixed output  
Press Copy to choose the volume control option.  
The display will show the  
Vout  
normal variable output setting:  
Press A or V to change to fixed output.  
Fout  
The display will show:  
The control unit will now give a fixed 0dB output, equivalent to a  
volume setting of 80, for use with Meridian D600 loudspeakers  
or a second preamplifier.  
If you have other specific requirements not catered for by the  
standard settings please refer to the Meridian 500 Series User  
Guide, or consult your Meridian dealer.  
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Setting up the Control  
Unit  
This chapter explains how to install the 501/501V Control Unit. It  
describes what you should find when you unpack the control unit, how you  
should connect it to your other audio equipment, and the siting  
constraints.  
Before you begin installation, you should ensure that your control unit is  
the correct voltage for your local AC supply. If it is not, do not try to install  
the control unit, and contact your dealer.  
You should not make any connections to the control unit or to any other  
component in your system whilst the AC power supply is connected and  
switched on.  
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Unpacking  
The 501/501V Control Unit comes in a box containing the  
following components:  
Radio interference  
FCC Warning: This equipment generates and can radiate radio  
frequency energy and if not installed and used correctly in  
accordance with our instructions may cause interference to  
radio communications or radio and television reception. It has  
been type-tested and complies with the limits set out in Subpart  
J, Part 15 of FCC rules for a Class B computing device. These  
limits are intended to provide reasonable protection against  
such interference in home installations.  
501/501V Control Unit.  
1 power cord.  
1 500 Series communications lead.  
This manual.  
You are advised to retain the packing in case you need to  
transport the unit.  
To position the control unit  
EEC: This product has been designed to comply with the limits  
set out in EN55013 and EN55020C.  
Do not place the control unit:  
In direct sunlight.  
Near heat sources, eg a radiator.  
On top of a power amplifier, as the heat generated may  
damage the control unit.  
However, it can be stacked on a 506 Compact Disc Player and  
504 FM Tuner, if you have these Meridian components in your  
system.  
34  
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Connecting the control unit  
Rear panel  
S-VHS  
outputs  
S-VHS VCR  
inputs outputs  
Video  
inputs  
Monitor  
output  
FN-Select  
2
VCR Out TV/V5  
LD/V3 VCR1/V1  
1
OFF  
S-Out  
VCR1  
S-In  
TECH  
ON  
V6  
Cable/V4 VCR2/V2 Monitor  
VCR2  
Main  
S2/VCR2 S1/VCR1  
COMMS  
RS232  
L
Headphones  
R
Main Out  
Tape Out  
Tape2/A6  
TV/A5  
Tape1/A4  
Radio/A3  
CD/A2  
LP/A1  
Head-  
phones  
Audio  
Tape  
Audio  
inputs  
RS232  
connection  
Comms  
connections  
outputs outputs  
Audio connections  
The following table gives details of the audio outputs:  
The following table gives details of the six audio inputs:  
Use this output  
To connect to this  
Main Out  
Power amplifier or active loudspeakers.  
Both outputs are identical to allow  
bi-amping.  
Use this input  
To connect to this  
A1  
A turntable pickup with optional  
MM/MC module.  
Tape Out  
Tape recorder output.  
A2 to A6  
Other audio sources.  
The audio inputs should be connected using high-quality  
screened cable, taking care to connect the left and right  
channels correctly.  
35  
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Video connections (501V only)  
The composite video connections should be made with high-  
quality 75screened cable. We do not recommend the use of  
audio cables, which do not have adequate shielding or the  
correct impedance, or cables intended for UHF applications, as  
these do not provide adequate shielding in the 1-30MHz region.  
The following table gives details of the eight video inputs:  
Use this input  
To connect to this  
V1 to V6  
Composite video signals, using phono  
connectors.  
In addition, the 501V Control Unit provides two FN-SELECT  
function selection outputs, which can be used to provide  
automatic switching of the monitor inputs. These provide  
standard SCART signals; for more information please refer to  
your dealer.  
S1 or S2  
S-VHS signals, using miniDIN  
connectors.  
The following table gives details of the six alternative video  
outputs:  
To connect to a tape recorder  
Use this output  
To connect to this  
Connect the analogue output from the tape recorder to the  
Tape 1 input on the control unit (or another input if you prefer).  
Monitor  
Video input for a TV or monitor, using a  
phono connector.  
Connect the Tape Out from the control unit to the analogue  
input on the tape recorder.  
VCR Out 1 or 2  
Main S-OUT  
Composite video recorder inputs, using  
phono connectors.  
S-VHS input, using a miniDIN  
connector.  
VCR1 or VCR2 S-OUT S-VHS video recorder inputs, using  
miniDIN connectors.  
36  
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To connect to other Meridian 500  
Series equipment  
This is the unit that will respond to the handset.  
All the other units will be configured  
NCon  
Connect one of the COMMS sockets on the rear panel of the  
control unit to one of the COMMS socket on another 500  
Series unit (excluding the 563), using the 500 comms lead  
provided with the other unit.  
as non-controllers, and display:  
Your system is now set up and ready for use.  
If, for any reason, the automatic setup does not give the  
configuration you want, restore the default operation by  
selecting Type 1 as described in To connect to Meridian 600  
or 200 Series equipment, page 38.  
The sequence in which you connect the units is not important.  
COMMS  
COMMS  
If you want to change the automatic setup configuration refer  
to the Meridian 500 Series User Guide.  
Then configure the units with the following automatic setup  
procedure:  
Note: Do not, under any circumstances, connect any equipment  
other than Meridian 500, 600, or 200 Series to the socket  
marked COMMS on the rear of the control unit.  
Switch all the units to standby.  
Press Clear on the handset.  
Auto  
Each unit will display:  
One unit will then be designated  
Con  
as the controller, and display:  
37  
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To connect to a 555 Stereo Power  
Amplifier  
Turn off the control unit, using the power switch on the back  
panel.  
Turn on the power again while holding down the Off key on  
501 Control Unit  
Main Out  
555 Stereo Power Amplifier  
INPUT INPUT  
the front panel.  
L
R
The display will show  
Ty 1  
the current Type setting:  
Audio lead  
Press A or V on the front panel to change the Type setting.  
Connect one pair of the sockets marked Main Out L and R on  
the rear panel of the 501/501V Control Unit to the INPUT  
sockets on the rear panel of the 555 Stereo Power Amplifier.  
If your system includes a Meridian CD player select Type 2;  
otherwise select Type 6.  
To connect to Meridian 600 or 200  
Series equipment  
For example, if you select  
Ty 2  
Type 2 the display will show:  
If your system includes any Meridian 600 or 200 Series units,  
with 600 COMMS or 200 COMMS sockets, you should set all  
the 500 Series units to 200 COMMS operation using the  
following procedure:  
Switch the power off and on again to restore the control unit  
to normal operation.  
To return to 500 COMMS operation repeat the above  
procedure, and select Type 1, 3, 4, or 5. For more information  
see Choosing standard settings, page 20.  
38  
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Troubleshooting  
This section describes problems you may encounter when using  
the control unit, and includes suggested solutions.  
There is hum on the LP input  
The LP input is the most sensitive input on the control unit.  
If these suggestions fail to cure the problem, please contact  
your Meridian dealer for further assistance.  
Check that the tone arm is connected to the technical ground  
of the control unit.  
No lights are displayed when  
switching on  
Check that the tone arm is connected to the power ground in  
the turntable.  
Check that your AC power supply is connected correctly.  
If you are using a magnetic pickup, check that there is not  
another piece of equipment too near to the turntable or the  
left-hand side of the control unit. If so, re-position the  
equipment to cure the problem.  
Check that the ON OFF switch on the rear panel  
is in the ON position.  
Check that the fuse on the control unit rear panel and the fuse  
in the unit’s power plug have not blown; see To change the  
mains fuse, page 41.  
There is hum on other inputs  
Check your other equipment.  
Consult your dealer.  
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There is interference on the radio and/  
or television when the control unit is  
switched on  
Communication is not working  
between the 501/501V Control Unit  
and other Meridian products  
Before following the steps below, ensure all units are switched  
off.  
Check that all products are interconnected using the correct  
comms leads.  
If the installation includes 200 Series or 600 Series units,  
If this equipment does cause or suffer from interference to/from  
radio or television reception then the following measures should  
be tried:  
check that all 500 Series units are set to 200 mode.  
Reorient the receiving aerial (or antenna) or route the antenna  
cable of the receiver as far as possible from the 501/501V  
Control Unit and its cabling.  
Ensure that the receiver uses well-screened antenna cable.  
Relocate the receiver with respect to the control unit.  
Connect the receiver and this product to different AC outlets.  
40  
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Maintenance  
Cleaning  
reconnect the plugs at least once a year. A proprietary contact  
cleaner can be used to some advantage.  
When cleaning the control unit bear in mind that the front of the  
control unit is plastic, and the display panel and lid are glass.  
To change the mains fuse  
Disconnect the power cord before cleaning the unit.  
Fuse  
Spare  
Note: Do not use abrasive cleaners on any part of the control  
unit.  
To clean the case, display panel, and  
keypad  
Remove the mains connector, and pull out the drawer next to  
the power input to access the fuses.  
Use a slightly damp cloth.  
Before replacing a blown fuse, if possible ascertain the cause of  
the failure.  
Ensure that no water is allowed to get inside the case, and do  
not reconnect the power until you are certain that the control  
unit is completely dry.  
The fuse drawer includes a spare fuse. This should be replaced  
by one of the same rating.  
To clean the audio and video  
connections  
The audio and video sockets on the rear of the control unit are  
gold-plated and need no cleaning if gold-plated phono plugs are  
used. Otherwise, it is recommended that you unplug and  
41  
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Service and guarantee  
Service  
Guarantee  
The Meridian 500 Series of hi-fi components have been carefully  
designed to give years of untroubled service. There are no user-  
serviceable parts inside the case, nor do the units require any  
form of maintenance.  
The 501/501V Control Unit is guaranteed against defects in  
material and workmanship for 2 years from the date of purchase.  
The guarantee is void if the 501/501V Control Unit has been  
subject to misuse, accident, or negligence, or has been  
tampered with or modified in any way without the written  
authorisation of Meridian Audio Limited. Note that connecting  
anything other than the correct network lead to the COMMS  
sockets may cause damage to the 501/501V Control Unit which  
will not be covered by this guarantee. Attempted servicing by  
unauthorised people may also invalidate this guarantee. Labour  
and carriage charges are not covered unless by local agreement.  
In the unlikely event that your control unit fails to function  
correctly, it should be returned, in its original packaging, to your  
Meridian dealer.  
In case of difficulty within the UK or USA please contact the  
appropriate sales and service address shown on page ii.  
In case of difficulty outside the UK or USA, contact the importing  
agent for the territory. A list of Meridian agents abroad is  
available from Meridian Audio.  
Outside the UK, local warranty liability is restricted to equipment  
purchased within the territory. Our agents abroad are only under  
contractual obligation to service under guarantee equipment  
sold through them. They are entitled to make a non-refundable  
charge for any service carried out on other equipment.  
No responsibility can be accepted for the control unit whilst in  
transit to the factory or an agent, and customers are therefore  
advised to insure the unit.  
This guarantee does not limit your statutory rights within the  
United Kingdom.  
When seeking service under guarantee, proof of the date of  
purchase will be required.  
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Index  
A
B
C
Accessories  
7
Configuration options (continued)  
volume control 30  
volume mode 30  
D
F
Digital output 35, 36  
Display 13  
Adjusting  
balance 13  
volume 12  
changing 13  
Configure the control unit 30  
Configuring sources 23  
address 25  
Fixed output, choosing 31  
Front panel controls 10  
Fuse, replacing 41  
Balance  
adjusting 13  
centring 13  
audio input 25  
comms type 25  
G
H
I
Guarantee 42  
Balancing input levels 28  
FNSEL output 25  
label 25  
Hum problems 39  
CD players, two 27  
Changing the display 13  
Cleaning 41  
S-VHS input 25  
video input 25  
Inputs  
Connecting  
audio 35  
video 36  
Installing 34  
the audio and video connections 41  
the case 41  
to a 555 Stereo Power Amplifier 38  
to a tape recorder 36  
to Meridian 500 Series  
equipment 37  
Components 34  
Introduction  
1
Configuration options  
200 Series CD player 30  
communications mode 30  
controller mode 30  
menu mode 30  
to Meridian 600 and 200 Series  
equipment 38  
L
Labels 26  
Last valid input 21, 22  
Last valid option 16  
Copy Attenuate option 14, 17  
Copy Source option 14, 17  
Copying  
Levels, programming 28  
product address 30  
system address 30  
video version 30  
a source 14  
M
Maintenance 41  
a video source 17  
MC phono module  
7
Customising the control unit 19  
43  
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Meridian 500 Series  
500 Compact Disc Transport  
501 Remote Control Preamplifier  
501V Control Unit  
504 FM Tuner  
2
O
Optical EIAJ output 35, 36  
Outputs  
Setting up the control unit 33  
for 500 Series operation 37  
for 600 and 200 Series operation 38  
Simultaneous broadcasts,  
source 27  
3
3
audio 35  
4
digital 35, 36  
optical EIAJ 35, 36  
video 36  
3
506 Compact Disc Player  
555 Stereo Power Amplifier  
3
Sound  
3
muting 12  
P
R
phono modules  
562 Digital Controller  
3
restoring 12  
MC  
MM  
7
562V Multimedia Controller  
5
Source labels 26  
Sources  
7
563 Digital to Analogue Converter  
communications  
4
Positioning 34  
2
changing label 26  
configuring 23  
Programming levels 28  
Meridian 500 Series operation,  
setting 37  
copying 14  
Radio interference 34  
Rear panel 35  
Meridian 600 and 200 Series  
operation, setting 38  
copying video 17  
default 11  
audio connections 35  
Record a radio broadcast 14  
Recording  
Meridian A2 Loudspeakers  
Meridian D6000 Digital  
3
default video 16  
programming levels 28  
recording 14  
Loudspeakers  
Meridian DSP5000 Digital  
Loudspeakers  
Meridian M60 Active  
Loudspeakers  
Meridian System Handset  
MM phono module  
Muting the sound 12  
5
a source 14  
selecting 11  
video input 17  
3
selecting video 16  
Specification  
S
Selecting  
4
501  
6
a source 11  
a video source 16  
Service 42  
2
501V  
7
7
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Standard settings  
501 21  
FNSEL output 25  
recording 17  
501V 22  
S-VHS input 25  
selecting 16  
selecting 20  
Standby mode 11  
Switching on from standby 11  
Switching to standby 11  
video input 25  
Video version (501V)  
connections 36  
specification  
7
T
Tape recorder, connecting to 36  
Troubleshooting 39  
Types 38  
video features 15  
Volume  
decreasing 12  
display 12  
501 21  
501V 22  
fixed output 31  
increasing 12  
muting 12  
selecting 20  
U
V
Unpacking 34  
restoring 12  
Using the control unit  
9
Video connections 36  
Video features 15  
Video sources  
changing label 26  
configuring 23  
copying 17  
default 16  
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