Sennheiser EM 3731-II, EM 3732-II User Manual

EM 3731-II

EM 3732-II

EM 3732-II Command

Instruction manual

Istruzioni per l’uso||

Bedienungsanleitung Notice d’emploi Gebruiksaanwijzing

Contents

Important safety instructions .................................................................... 2

The product family ........................................................................................ 5

The frequency bank system ..................................................................... 6

Delivery includes ........................................................................................... 7

Product overview .......................................................................................... 8

Overview of the EM 3731-II/EM 3732-II/EM 3732-II COM receivers. 8

Overview of the displays .......................................................................... 9

Reception display ..................................................................................... 10

Status display ........................................................................................... 11

Putting the receiver into operation ........................................................ 13

Fitting the device feet ............................................................................. 13

Rack mounting .......................................................................................... 13

Connecting the antennas ....................................................................... 14

Daisy chaining receivers ......................................................................... 16

Connecting the receiver to the mains/

disconnecting the receiver from the mains ........................................ 17

Connecting the amplifier/mixing console ........................................... 17

Connecting devices with AES3 digital input ....................................... 18

Connecting an external word clock generator .................................... 18

Connecting the receivers to a PC via Ethernet ................................... 19

Using the receiver ....................................................................................... 20

Switching the receiver on/off ................................................................ 20

Connecting the headphones/adjusting the volume ......................... 20

Deactivating the lock mode ................................................................... 21

Synchronizing a transmitter with the receiver frequency ............... 21

Identifying receivers using the “Wireless Systems Manager”

software (identifying function) ............................................................ 22

Sorting channels using the “Wireless Systems Manager”

software ..................................................................................................... 23

Using the operating menu ........................................................................ 24

Overview of the operating menu .......................................................... 24

Working with the operating menu ....................................................... 25

Overview of the menus............................................................................ 26

Adjustment tips for the operating menu .............................................. 30

Cleaning the receiver .................................................................................. 41

Additional information .............................................................................. 42

HiDyn plus™ (HDP) noise reduction ..................................................... 42

Squelch ....................................................................................................... 42

Diversity reception ................................................................................... 43

If a problem occurs ...................................................................................... 44

Accessories ................................................................................................... 45

Specifications ............................................................................................... 46

Manufacturer Declarations ....................................................................... 48

Important safety instructions

1. Read these instructions.

2. Keep these instructions. Always include these instructions when passing the receiver on to third parties.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, when the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

15. To completely disconnect this apparatus from the AC mains, disconnect the power supply cord plug from the AC receptacle.

16. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.

17. Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on the equipment.

18. The mains plug of the power supply cord shall remain readily operable.

Important safety instructions

Hazard warnings on the rear of the receiver

The label shown on the left is attached to the rear of the receiver. The symbols on this label have the following meaning:

This symbol is intended to alert the user to the presence of uninsulated dangerous voltage within the receiver’s enclosure that may be of sufficient magnitude to constitute risk of fire or electric shock.

This symbol is intended to alert the user to the risk of electric shock if the receiver is opened. There are no user serviceable parts inside. Refer servicing to qualified personnel only.

This symbol is intended to alert the user to the presence of important operating and maintenance instructions in the literature accompanying this receiver.

Overloading

Do not overload wall outlets and extension cords as this may result in fire and electric shock.

Safety check

Upon completion of any service or repairs to this device, ask the service technician to perform safety checks to determine that the device is in safe operating order.

Danger of hearing damage due to high volumes

This is a professional receiver. Commercial use is subject to the rules and regulations of the trade association responsible. Sennheiser, as the manufacturer, is therefore obliged to expressly point out possible health risks arising from use. This receiver is capable of producing sound pressure exceeding 85 dB(A). 85 dB(A) is the sound pressure corresponding to the maximum permissible volume which is by law (in some countries) allowed to affect your hearing for the duration of a working day. It is used as a basis according to the specifications of industrial medicine. Higher volumes or longer durations can damage your hearing. At higher volumes, the duration must be shortened in order to prevent hearing damage. The following are sure signs that you have been subjected to excessive noise for too long a time:

• You can hear ringing or whistling sounds in your ears.

• You have the impression (even for a short time only) that you can no longer hear high notes.

Important safety instructions

Intended use of the receiver

Intended use of the EM 3731-II single receiver or the EM 3732-II and EM 3732-II COM twin receivers includes:

• having read these instructions, especially the chapter “Important

safety instructions” on page 2,

• using the receiver within the operating conditions and limitations

described in this instruction manual.

“Improper use” means using the receiver other than as described in these instructions, or under operating conditions which differ from those described herein.

The product family

The receivers of the product family ensure highest reception reliability and offer unmatched ease of use. Due to their large switching bandwidth and numerous connection options, these receivers provide maximum flexibility in daily operation.

The product family is comprised of the following models:

• EM 3732-II COM twin receiver

• EM 3732-II twin receiver

• EM 3731-II single receiver

All receivers of the product family have the following features:

• Up to 184 MHz switching bandwidth

•Scan function

• Frequencies tuneable in steps of 5 kHz

• True diversity reception

• Integrated antenna splitter for daisy chaining up to eight receivers

• DSP-based audio expander, HiDyn plus™(HDP)

• AES3 digital audio output

• External word clock synchronization of the digital audio output

• Audio output level can be set in steps of 1 dB

• Transformer balanced audio outputs

• Command audio output (EM 3732-II COM receiver only)

• Ethernet socket for connection to a PC

• Receivers can be monitored and remote controlled using the supplied Sennheiser WSM PC software

• Operation via jog dial

• Hot keys for storing, synchronization, headphone selection and escape function

•Intuitive, icon-based operating menu

• Display with high contrast and intensity

• LEDs for indicating warning states

• Infra-red synchronization of receiver settings with suitable transmitters

• Both receivers of a twin receiver can be monitored – individually or simultaneously – via headphones

The product family

Optimized for maximum transmission reliability

Additionally available channels in Low Intermodulation mode

The frequency bank system

The receivers are available in three UHF frequency ranges with up to 184 MHz switching bandwidth:

Range 2 (N)

614–798

Range 1 (L)

470–638

400 600 800 1000

The receivers have seven frequency banks:

Channel Frequency bank

1 2 3 4 5 6 U

1 The receiving frequencies are factory-

...

preset (see enclosed frequency table) and cannot be changed.

max. 60

Range 3 (P)

776–960

The receiving frequencies can be freely selected within the switching bandwidth.

CAUTION! Risk of reception interference!

If – within the receiver’s frequency range – transmitters transmit on channels from different frequency banks, reception can be subject to interference and intermodulation. Only the factory-preset frequencies within the frequency banks “1” to “6” are interference and intermodulation free.

왘 Set all transmitters of a multi-channel system to different

channels within the same frequency bank.

Delivery includes

Distribution of the receiving frequencies within the frequency banks 1 to 6:

Frequency bank

The varying accumulation of frequencies within the frequency banks allows you to use as many channels as possible in a crowded frequency band.

Distribution of the receiving frequencies within the frequency banks

Delivery includes

Delivery of the receiver includes:

1 EM 3732-II COM twin receiver or 1 EM 3732-II twin receiver or 1 EM 3731-II single receiver

3 mains cables (with EU, UK and US plug) 2 BNC antenna daisy chain cables (50 Ω) 1 BNC word clock daisy chain cable (75 Ω)

4 device feet

1RJ45 Ethernet cable

2antennas

1instruction manual

1 CD ROM with:

– the “Wireless Systems Manager” (WSM) software

– the instruction manual of the “Wireless Systems Manager” software

1Frequency table

Product overview

True Diversity Receiver EM 3732-II

300

100

PEAK

μV

% DEV

M H z

776.000

01.01

BANK CH

A B

COM

300

100

PEAK

μV

% DEV

M H z

776.000

01.01

BANK CH

A B

COM

EM 3732-II-XXX-X

RF-OUT FREQ. RANGE: 776 – 960 MHz

Product overview

Overview of the EM 3731-II/EM 3732-II/EM 3732-II COM receivers

AFront panel

1 Rack mount “ears”

(6.3 mm) jack socket for headphones

2 ¼“ 3 Headphone volume control 4 Display (see next page) 5 Warning triangle for indicating error states 6 esc button, backlit 7 Jog dial 8 save button, backlit 9 sync button, backlit 0 Headphone button, backlit

(except EM 3731-II single receiver)

A Infra-red interface B Display for external word clock synchronization C button, backlit

BRear panel

D 3-pin mains socket E LED for LAN data transmission F RJ 45 socket for LAN connection G XLR-3 socket (male) for digital audio output,

digital balanced, AES3

H BNC socket for word clock input (75 Ω)

I BNC socket for word clock daisy chain output (75 Ω) J XLR-3 socket (male) for Command output 2*,

balanced (EM 3732-II COM twin receiver only)

K XLR-3 socket (male) for audio output AF Out 2*,

balanced (except EM 3731-II single receiver)

L XLR-3 socket (male) for Command output 1*,

balanced (except EM 3731-II single receiver)

M XLR-3 socket (male) for audio output AF Out 1*,

balanced

N LED for booster supply of antenna input A O BNC socket, antenna input A

(ANT A – RF in, DC out, 50 Ω)

P BNC socket, daisy chain output A

(ANT A – RF out)

Q BNC socket, daisy chain output B

(ANT B – RF out)

R BNC socket, antenna input B

(ANT B – RF in, DC out, 50 Ω)

S LED for booster supply of antenna input B T Label with hazard warnings U Type plate V Label with frequency range for daisy chaining

* The audio outputs marked with the number “1” output the audio signal of the left receiver of the twin

receiver (as viewed from the front); the audio outputs marked with the number “2” output the audio signal of the right receiver.

Product overview

Overview of the displays

After switch-on, the receiver displays the “Bank/Channel” status display. For further illustrations and examples of the different status displays, refer to page 38.

Each display provides information on the operating states of the receiver and those of the received transmitter.

쐃

A B

쐋 쐏 쐂 쐆 쐊

쐇

300

100

µV

% DEV

PEAK

100

776.000

01.01

BANK CH

쐅쐄

M H

COM

쐎

Reception display

쐃 RF level display “RF” for antenna A

쐇 Diversity display (antenna A or antenna B active)

쐋 RF level display “RF” for antenna B

쐏 Audio level display “DEV”

쐄 Display for the squelch threshold

For additional information, refer to page 10.

Status display

쐂 Frequency display

쐆 “MHz” – appears when the frequency is displayed

쐊 6-step transmitter battery status display

쐎 Command display (status display for the audio outputs AF and

Command) (EM 3732-II COM twin receiver only)

쐅 Display for the current frequency bank and channel or the name

For additional information, refer to page 11.

Brightness control

The display has an automatic brightness control. The brightness is dimmed after the last button press. With each new button press, the display lights up with full brightness.

Triggers for dimming after Behavior of the display

No operation 60 s Display is slightly dimmed

Squelch not reached 20 min Display goes off

Product overview

300

100

PEAK

µV

% DEV

A B

쐃

쐋

300

100

PEAK

µV

% DEV

A B

쐄

쐏

AF Peak

Mute

Reception display

The reception display is permanently displayed. If you do not press a button on the receiver, the display will dim after 60 seconds (see page 9).

RF level display “RF” for the antennas

The left bargraph 쐃 shows the strength of the received RF signal for antenna A; the right bargraph 쐋 shows the strength of the received RF signal for antenna B.

When the RF signal of the received transmitter is too weak on both

antennas:

•the text “Mute” flashes several times in alternation with the status

display,

• the warning triangle for indicating error states 5 lights up red,

• the receiver is automatically muted to suppress hissing noise.

쐇

A B

300

100

µV

A B

300

100

µV

% DEV

PEAK

100

% DEV

PEAK

100

Display for the squelch threshold

The top edge of the rastered area 쐄 shows the adjusted squelch threshold. The squelch threshold can be adjusted via the operating menu (see “Adjusting the squelch threshold” on page 32). If the squelch threshold is not reached for 20 minutes, the display goes off (see page 9).

Diversity display

The receivers operate on the true diversity principle (see “Diversity reception” on page 43). The diversity display 쐇 indicates whether diversity section A (i.e. antenna A) or diversity section B (i.e. antenna B) is active. The letter of the active diversity section appears backlit.

Audio level display “DEV”

The audio level display “DEV” 쐏 shows the modulation of the received transmitter.

When the transmitter’s audio input level is excessively high, the receiver’s audio level display “DEV” 쐏 shows more than 100 %.

When the transmitter is overmodulated frequently or for an extended period of time, the text “AF Peak” appears and the warning triangle for indicating error states 5 lights up red.

Product overview

M H

776.000 NAME

M H

776.000

01.01

BANK CH

(Low Batt)

Low Batt

Status display

The status display shows the receiving frequency, the transmitter battery status and – depending on the selection made in the “Display” menu – either the frequency bank and the channel number or the name of the receiver. With the EM 3732-II COM receiver, the command display can also be displayed within the status display. The contents of the status display can be changed in the “Display” menu (see page 38).

When pressing the jog dial 7, the status display is replaced by the operating menu (see “Working with the operating menu” on page 25).

When in the operating menu, you can return to the status display by pressing the esc button 6 one or several times.

Frequency display

The frequency display 쐂 shows the current receiving frequency in MHz.

Display for the current frequency bank and channel or the name

The display for the current frequency bank and channel or the name 쐅 shows – depending on the selection made in the “Display” menu – the following:

•Frequency bank “1...6, U” and channel number “1...60”

•Name

Transmitter battery status display

The 6-step transmitter battery status display 쐊 provides information on the charge status of the transmitter’s battery/accupack:

Number of segments Charge status

Accupack Battery

approx. 100 % full

approx. 80 % -

approx. 60 % half-full

approx. 40 % -

approx. 20 % -

approx. 0 % almost empty

If no battery/accupack status signal is received, the battery status display is not shown.

When the battery/accupack is almost empty, text “Low Batt” flashes in alternation with the status display. In addition, the warning triangle for indicating error states 5 lights up red.

Product overview

COM

Command display (status display of the audio outputs AF and Command)

COM

The command display is only available with the EM 3732-II COM twin receiver.

Besides the two audio outputs K and M the EM 3732-II COM twin receiver also features the two command outputs J and L.

Via the “Command” menu, you can configure the receiver so that – with the command button of the transmitter pressed – the audio signal is available at only one of the outputs or at both (see “Configuring the audio outputs of the EM 3732-II COM” on page 34).

The command display 쐎 shows the audio output at which the transmitter’s audio signal is available.

When “AF” lights up brightly, the audio signal is available at the audio output K and/or M.

When “AF” does not appear, the audio signal is not issued on the audio output K and/or M.

When “COM” lights up brightly, the audio signal is available at the command output J and/or L.

When “COM” does not appear, the audio signal is not issued on the command output J and/or L.

LEDs for booster supply of antenna inputs

The LEDs for booster supply of antenna input A N and/or B S light up when:

• the booster supply voltage is applied to the corresponding antenna

input A O and/or B R.

The LEDs for booster supply of antenna input A N and/or B S go off when:

• the booster supply voltage for the corresponding antenna input A O and/or B R is switched off or

• the booster supply voltage is short-circuited or overloaded.

Putting the receiver into operation

Fitting the device feet

To ensure that the receiver cannot slip on the surface on which it is placed, four self-adhesive soft rubber feet are supplied.

Do not fit the device feet when rack mounting the receiver.

CAUTION! Risk of staining of furniture surfaces!

Some furniture surfaces have been treated with varnish, polish or synthetics which might cause stains when they come into contact with other synthetics. Despite a thorough testing of the synthetics used by us, we cannot rule out the possibility of staining.

왘 Do not place the receiver on delicate surfaces.

왘 Ensure that the base of the receiver is clean and free from grease

before fitting the device feet.

왘 Fit the device feet to the four corners of the receiver as shown.

Rack mounting

CAUTION! Risks when rack mounting the receiver!

When installing the receiver in a closed or multi-rack assembly, please consider that, during operation, the ambient temperature, the mechanical loading and the electrical potentials will be different from those of devices which are not mounted into a rack.

왘 The ambient temperature within the rack must not

exceed the temperature limit specified in the specifications.

왘 When installing the receiver in a rack, take good care not

to affect the ventilation required for safe operation or provide additional ventilation.

왘 Make sure the mechanical loading of the rack is even to

avoid a hazardous condition such as a severely unbalanced rack.

왘 When connecting the receiver to the power supply,

observe the information indicated on the type plate. Avoid circuit overloading. If necessary, provide overcurrent protection.

왘 Ensure a reliable mains ground connection of the device

by taking appropriate measures – especially when you are using an extension cable or a multi-outlet power strip.

왘 When installing the receiver in a closed or multi-rack

assembly, please note that intrinsically harmless leakage currents of the individual devices may accumulate, thereby exceeding the allowable limit value. As a remedy, ground the rack via an additional ground connection.

Putting the receiver into operation

The rack mount “ears” are already fitted to the receiver on delivery. To mount the receiver into a 19" rack:

왘 Slide the receiver into the 19" rack. 왘 Secure the rack mount “ears” 1 to the rack using four screws (not

included in the delivery).

Connecting the antennas

CAUTION! Danger of short-circuit due to uninsulated antennas!

If you switch the booster supply voltage on, a 12 V DC voltage is applied to the antennas – even when you switch the

receiver off! If uninsulated antennas come into contact with

objects which conduct electricity, this voltage can produce sparking and audio interference.

왘 Use insulated antennas.

왘 Always mount uninsulated antennas so that they cannot

come into contact with objects which conduct electricity.

The two antenna inputs O and R allow you to connect either:

• the two supplied antennas to the rear of the receiver (see next section) or

• the two supplied antennas to the front of the receiver (see “Mounting the antennas to the front of the rack” on page 15) or

• two remote antennas to the rear of the receiver (see “Connecting and positioning remote antennas” on page 16).

In addition, the receiver has two daisy chain outputs P and Q for supplying the antenna signals to further receivers (see “Daisy chaining receivers” on page 16).

Connecting the antennas to the rear of the receiver

The supplied antennas can be mounted quickly and easily and are suitable for all applications where – good reception conditions provided – a wireless transmission system is to be used without a large amount of installation work.

왘 Connect the antennas to the BNC sockets O and R at the rear of the

receiver.

왘 Align the antennas upwards in a V-shape.

+ 35 hidden pages