HTDZ HT-7000 Series User manual

INSTRUCTION MANUAL
Digital Conference System
HT-7000 SERIES

INDICE
1. IMPORTANT SAFETY INSTRUCTIONS----------------------------------------------------------------------------------1
2. DESCRIPTION-------------------------------------------------------------------------------------------------------------------4
3. MAIN UNIT FRONT PANEL FUNCTIONS AND CONTROLS - HT-7000----------------------------------------4
4. MAIN UNIT REAR PANEL FUNCTIONS AND CONTROLS - HT-7000------------------------------------------5
5. CHAIRMAN AND DELEGATE UNIT FUNCTIONS AND CONTROLS-------------------------------------------5
6. INSTALLATION AND CONNECTION-------------------------------------------------------------------------------------7
7. HOW TO USE THE SYSTEM-----------------------------------------------------------------------------------------------10
8. USB RECORDING MODULE-----------------------------------------------------------------------------------------------10
9. EXTENSION POWER UNIT FRONT PANEL FUNCTIONS AND CONTROLS-------------------------------11
10. EXTENSION POWER UNIT REAR PANEL FUNCTIONS AND CONTROLS---------------------------------11
11. EXPANSION UNIT CONNNECTION--------------------------------------------------------------------------------------12
12. TECHNICAL FEATURES----------------------------------------------------------------------------------------------------14

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1. IMPORTANT SAFETY INSTRUCTIONS
CAUTION: To reduce the risk of electric shock do not remove cover (or back panel). No user
serviceable parts inside. Refer servicing to qualified personnel only.
WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or
moisture.
This symbol is intended to alert the user of the presence of uninsulated dangerous voltage
within the product enclosure that may be of sufficient magnitude to constitute a risk of
electric shock to persons.
This symbol is intended to alert the user of the presence of important operating and
maintenance (servicing) instruction in the literature accompanying the appliance. Please
carefully read the owner’s manual.
INSTRUCTIONS:
All safety and operating instructions should be read before the product is operated.
Retain these instructions:
All safety and operating instructions should be retained for future reference.
This owner’s manual should be considered as a part of the product, it must accompany it at all times, and it
needs to be delivered to the new user when this product is sold. In this way the new owner will be aware of
all the installation, operating and safety instructions.
Heed all warnings:
All warnings on the product and in owner’s manual should be adhered to.
Heed all warnings.
Follow all instructions:
All operating and user’s instructions must be followed.
Sentences preceded by symbol contain important safety instruction. Please read it carefully.
DETAILED SAFETY INSTRUCTIONS.
Water and moisture:
This apparatus should not be used near water (i.e. bathtub, kitchen sink, swimming pools, etc.)
Ventilation:
This apparatus should be placed in a position that doesn’t interfere with its correct ventilation. This unit,
for example, should not be placed on a bed, sofa cover or similar surfaces that could cover ventilation
openings, or placed in a built-in installation, such a bookcase or a cabinet that could block air flow
trough ventilation openings.
Heat:
This apparatus should be placed away from sources of heat, like radiators, heat registers, stoves or
other products (including amplifiers) that produce heat.
Power sources:
•This apparatus should only be connected to a power source of type specified in this owner’s manual
or on the unit.
•If the supplied AC power cable plug is different from wall socket, please contact an electrician to
change the AC power plug.

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Grounding or Polarization:
•All precautions must be observed in order to avoid defeating grounding or polarization.
•Unit metal parts are grounded through the AC power cord.
•If the AC power outlet doesn’t have grounding, consult an electrician for outlet grounding.
Power cable protection:
The power cable should be routed in such a way that it will not be walked on or pinched by items placed
upon or against it, paying particular attention to cables at their connections, receptacles and wall outlet.
Cleaning:
•You can clean the exterior of the unit with compressed air or a damp cloth.
•Don’t clean the unit using solvents like trichloroethylene, thinners, alcohol, or other volatile or
flammable fluids.
Non use periods:
The unit AC power cable should be unplugged from the outlet if it’s unused for long periods.
Objects or liquid entry into the unit:
Be careful that no objects fall into the unit or that no liquid is spilled inside the unit through ventilation
openings.
Safe power line use:
•Hold the plug and the wall outlet firmly while disconnecting the unit from AC power.
•When the unit will not be used for a long period of time, please unplug the power cord from AC
power outlet.
•To avoid power cable damage, don’t strain the AC power cable and don’t bundle it.
•In order to avoid damage to the unit's power cable, be sure that the power cable is not walked on or
pinched by heavy objects.
Unit relocation:
Before relocating the unit, please control the unit is turned off. The power cord must be unplugged from
the wall outlet, and all the connecting cables should be disconnected as well.
Do not open this unit:
Do not attempt to open or repair this unit yourself. For any problem not described in this owner’s manual,
please refer to qualified personnel only or consult us or your National Distributor. Any improper operation
could result in fire or electric shock.
Damages requiring services:
•Do not attempt to perform operations not described in this user’s manual.
•In the following cases please refer to an authorized service center or skilled personnel:
- When the unit works improperly or it doesn’t work at all.
- If power cord or plug is damaged.
- If liquid has spilled, or objects have fallen into the unit.
- The unit has been exposed to rain.
- The unit doesn’t operate normally or exhibits a marked change in performance.
- If the product has been dropped or has been damaged in any way.
Maintenance:
The user shouldn’t attempt maintenance not described in this user’s manual. All maintenance should be
performed by qualified personnel only.
IMPORTANT SAFETY INSTRUCTIONS:
•Install this unit following owner’s manual instructions.
•Do not install, connect or disconnect power supply when the unit is powered, otherwise there is a
high risk of electric shock.
•Do not open the unit, there are no user serviceable parts inside.
•If you detect a particular smell from the unit, please immediately turn it off and disconnect the AC
power cord.
•Don’t block the unit's ventilation openings.
•Avoid using this unit in overload for a long period.

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•Don’t force commands (switches, controls, etc.)
•To obtain good speaker wire contact, please tighten the screw terminals firmly.
•For safety reasons, do not defeat the grounding connection. Grounding is for user safety.
•Use only connectors and accessories suggested by the manufacturer. .
•This unit should be fitted in an equipment rack (see INSTALLATION) and kept far from:
➢Wet places
➢Direct exposure to heat sources (like sun light)
➢Improperly ventilated places
•Disconnect the power cord during storms or when the unit is not in use.
•In order to prevent fire and reduce risk of electric shock, it is necessary to keep the unit far from
dripping water. Please don’t put cups, vases or other object containing liquids over the unit. In case
of interference from source signal, THD value will raise over 10%. Don’t place this unit in a bookshelf
or in other enclosed spaces.
•HTDZ is not responsible for any damage that occurs due to a incorrect installation of the unit.
Remark:
•All rights reserved for translation, reprint or reproduction.
•Content may change without prior announcement
•All technical specifications are guideline data and not guaranteed featured
•HTDZ is the registered trademark of Haitian Electronic Technology Co., Ltd.

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Thank you for choosing this HTDZ product and for trusting our brand, which strives to be synonymous with
professionalism, precision, high quality and reliability. All of our products comply with EC regulations
regarding audio equipment for continuous use.
2. DESCRIPTION
This conference system uses digital technologies according to the European Community's IEC914 and ISO
standards.
It is composed of a main unit –HT-7000 –and two microphone units –Delegate and Chairman –that feature
high sensitivity, a wide frequency response, an internal loudspeaker and a cardioid electret microphone with
a lighted ring for the visual identification of the microphone in use. The system is pre-cabled to ensure fast
and easy installation.
The device may include up to 64 microphone units, daisy-chained on four independent lines (or a maximum
of 30 microphone units on each line).
The system involves the use of several expansion units –HT-08EX. Every expansion unit can support up to
60 microphone units divided on six lines (never use more than 30 microphone units on each line).
Adding four expansion units, the system can control up to 254 microphone units.
Main Functions:
•It directly powers and controls 64 microphone units.
•Chairman microphone has priority function.
•Five operating modes: FREE MODE, LIMIT 1/2/3/5
•One microphone input (MIC) and one line input (LINE) for external units.
•TAPE output for recordings and line output (LINE) for amplification (balanced and unbalanced).
•It allows insertion of an audio processor to the chain.
•Microphone sensitivity level control.
•Loudspeaker level control for the unit monitors
•Built-in power amplifier, which can support external speaker and control the volume directly
•Built-in recording module to record and play audio
Product complies with CE regulations
3. MAIN UNIT FRONT PANEL FUNCTIONS AND CONTROLS –HT-7000
Fig.1
1）POWER: Main power on/off switch
2）BASS: Control the bass level of external speaker
3）TREBLE: Control the treble level of external speaker
4）VOL: Volume control of the speakers connected to the speaker output of the control unit
5）MODE SELECTOR: Allows selection of one of the following modes: FREE MODE, LIMIT 1/2/3/5
6）MIC: Control the audio level of any dynamic microphone connected to MIC IN (fig. 2 –ref. 5)
7）AUX:Sets the audio level of any audio source (wireless microphone, CD player, etc.) connected to
AUX IN (figure 2 –ref. 2)
8）MONITOR: Control the audio level of the monitor speaker on board the main unit
9）MASTER: Control the level on MASTER OUT (figure 2 –ref. 3, 4)
10）UNIT VOL: Sets the audio level of the monitoring loudspeaker of the microphones (figure 3 –ref. 6)
11）USB INTERFACE: Be connected to USB drive for record and display the audio
12）LCD display: To display current work mode of the recording module
13）Function Key of Recording Module: Four function key of recording module: PLAY/STOP,
PREVIOUS, NEXT, MENU

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4. MAIN UNIT REAR PANEL FUNCTIONS AND CONTROLS - HT-7000
Fig.2
①TREBLE GAIN: Rotate this control counterclockwise to emphasize high frequencies
②AUX IN: Line level input (RCA). Connect this input to an audio source such as a CD player, etc.
③MASTER OUT REC/LINE: Recording output (RCA). To record a conference, connect a recorder to
this output, Unbalanced line level output
④BAL OUT: Balanced signal output (male XLR3). Connect mixer or amplifier to this output
⑤MIC IN: Microphone input (TRS Jack 6,3 mm)
⑥EFX OUT / EFX IN: Balanced insert loop for any signal processor. p (TRS Jack 6,3 mm). Connect
EFX OUT to the PROCESSOR input and the PROCESSOR output to the EFX IN input
⑦DELEGATES: 4 group input per Chairman/Delegate unit. Up to 30 units can be connected to each
line (do not exceed this quantity), or up to 64 units total
⑧DATA: RJ45 interface, use for connect video processor to support video tracking function (Default
not support this function）and central control system
⑨SPEAKER: User can connect external speaker to this port directly, 2X50W RMS 4-16 Ohm
⑩AC POWER SOCKET: Power 230VAC 50/60Hz, FUSE 8A
5. CHAIRMAN AND DELEGATE UNIT FUNCTIONS AND CONTROLS
Gooseneck Mic
Side/back of the Mic
HT-8300c/d,HT-8400c/d HT-7600Bc/Bd
HT-7600c/d HT-8310c/d

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HT-7300c/d HT-7310c/d
HT-7010c/d HT-7000Ac/Ad
HT-7000Bc/Bd HT-8200c/d
HT-7500c/d HB-350c/d
Fig.3
①Electret condenser cardioid microphone
②Indicator light on active microphone: When microphone is active, indicator light switches on
③Socket with screw thread
④Priority key ( for chairman unit only): When press and hold this key 1 second on chairman
microphone unit, all active delegate microphones will be switched off.
⑤Microphone on/off key: Press this key to speak (the unit will be immediately enabled unless
the limit of simultaneously enabled units has been reached), press again to turn off microphone
⑥Microphone speaker monitor
⑦Microphone socket to fixed the gooseneck microphone
⑧Microphone LCD display: To display the microphone status
⑨Microphone cover fixed socket
⑩8P female connection port: To connect microphone Y type branch cable
11 Earphone jack 3.5mm
12 REC output jack. 3.5mm jack, lavalier MIC jack of chairman unit
13 Microphone monitor speaker/earphone volume control
6. INSTALLATION AND CONNECTION

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Connect the unit to 230 V AC 50/60 Hz mains. Use the connection cables provided to connect the daisy-
chained microphone units to the 4 Delegates (figure 2, ref. 7) as shown in figure 4, paying attention not to
connect more than 30 microphones units to each line and no more than 64 microphone units altogether.
Closed-loop lines can be created with the optional 3 m cable, in this way no microphone units will be isolated
in case of interruption one of the lines. The configuration shown in figure 6 cannot allow more than 30
microphone units on each loop.
In any case, the maximum limit of 64 microphone units cannot be exceeded.
The system can host more than one Chairman microphone. They can be inserted at any position on the
chain.
①- Prepare conference controller HT-7000, chairman microphone, delegate microphone, main
extension cable and microphone branch cable (Y type)
-The main unit HT-7000 is supplied with a main extension cable (13 m with one male DIN-8
connector for connection to the main unit, one female DIN-8 connector for connection to the
microphone Y type branch cable), one male-female XLR cable, one RCA-6.3 mm jack audio cable
and one power cable
13 m
- Chairman microphone and delegate microphone are supplied with a branch/interconnection Y
type cable (2+1.5 meters with one female DIN-8 connector for connection to the main extension
cable or to the previous microphone, 2 male DIN-8 connector for connection to microphone and
extend the line to the next microphone
②Connect the main extension cable (male DIN-8 13 m) to one of the sockets group (DELEGATES)
of the main unit. In each of the 4 lines you can connect 30 mics maximum. Connect the other end of
the extension cable (female DIN-8 13 m) to Y type microphone branch cable (male DIN-8 2 m),
connect the chairman or delegate microphone to the Y type microphone branch cable (male DIN-8
1.5 m), and the male DIN-8 connector to the next Y type microphone branch cable (female DIN-8
2m) to extend the microphones
Note: Paying attention not to connect more than 30 microphones units to each line and no more than
64 microphone units altogether, microphone quantity in one system may decreased according to
different microphone type and cable length.
③If desired, contact any of the line-level outputs (balanced XLR or unbalanced RCA) to the input of
an amplifier. For example, you can connect a recorder to the REC output device
④Use low power consumption speakers 4-16 Ohm connect to the speaker output socket on the rear
panel of main unit to amplified the conference sound
⑤Connect the main unit to 230 V AC 50/60 Hz mains by power cable.
⑥To talk on a microphone, please press the on/off key. When you finish talking, turn off the
microphone by pressing the key again. If microphone is active, indicator light switches on.
⑦When chairman press and hold the PRIOR key 1 second on chairman microphone unit, all active
delegate microphones will be switched off and the chairman microphone will active.

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Fig.4

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TYPE OF CONNECTIONS
Balanced connection:
Unbalanced connection:
Balanced connection with TRS jack
Unbalanced connection with TRS jack
Balanced connection on EUROBLOC connector
Unbalanced connection on EUROBLOC connector
RCA Connection

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7. HOW TO USE THE SYSTEM
User can set the system working mode by the mode knob (fig1. ref.5)
MODES OF OPERATION:
•FREE MODE: When this mode is selected, an unlimited number of participants can speaker
simultaneously.
•LIMIT MODE: When this mode is selected, plus the number of delegates that can speak
simultaneously. Once this number of delegates is reached, no further delegates will be allowed to
intervene until the number of active delegate microphone again falls below this limit. There are 4
options for limit number:1/2/3/5
8. USB RECORDING MODULE
USB recording module menu include 5 sub-menus
Operation method:
•Press “ / ”to select the sub-menu.
•Press “ ” to enter the sub-menu.
•Press “”to exit current menu and back to previous menu.
•Hold and press “ ” 3 seconds back to the main menu
①Music: The device will play the audio file (mp3 format) automatically when USB
flash disk connected USB interface, and user can select the audio file by press
key “ / ”
Function key instruction:
Function Key
Instruction
PLAY/PAUSE
Short press：Play/Pause
Long press: Sub-menu switch interface (MSC/REC/BT/SYS/UDI)
PREV
PREV / V-: Short press for previous audio file, long press for decrease volume
NEXT
NEXT/ V+: Short press for next audio file, long press for increase the volume
MENU
Built-in sub-menu: U-disk folder/EQ/Play mode
Long press: Enter recording mode
②Record: In this interface the record module can record the audio of the system,
press key “ ”to start recording, please key “ ”again to pause recording,
press “”to exit recording and play the record file automatically.

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The record file will save in the folder named “Record”, the file format is *.mp3
③Bluetooth: In this interface user can use other Bluetooth device (such as mobile phone) to connect
it and play the audio, system Bluetooth device name “NLJ-BT
In Bluetooth interface, user can enter the Bluetooth function by press key “”and check all information
with key “ / ”
④UDI: User can connect computer or other devices to USB interface to play the
audio file
⑤Setting: User can set the system function by press key “ / ”in this interface
✓Back-light time: To set LCD back-light time (00-240 Seconds)
✓Language: To set display language
✓Contrast: The set LCD display contrast (Level 0-20)
✓Version: To display device version
✓Exit
9. EXTENSION POWER UNIT FRONT PANEL FUNCTIONS AND CONTROLS
Fig.5
⑥POWER: Main power on/off switch
10. REAR PANEL FUNCTIONS AND CONTROLS
Fig.6
①AC POWER SOCKET: Power 230VAC 50/60Hz, FUSE 8A
②EXPANDER OUTPUT: 6 inputs for Chairman/Delegate units. Each line can be connected to up to
30 units (do not connect more than 30). One extension power unit can manage up to 60 units.
③In-line Power Switches: After connecting the microphones to the system, set the switches of the
lines involved on the “I” position. The LED light will indicate that the line is powered.
④EXSPANDER LINK IN: Connect this input to one of the 4 main unit outputs using the cable

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Provided
⑤EXSPANDER LINK OUT:Connect this output to the next expansion unit input using the provided
cable There is no limit to the number of expansion units that can be connected, yet the total
number of manageable microphone units must not exceed 254.
11. EXPANSION UNIT CONNECTION
Method 1:
Fig.7
Note:
Be sure to keep the shortest possible distance between the main unit and the last microphone. For long
distances we advise option for method 1.

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Method 2:

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Fig.8
12. TECHNICAL FEATURES
Descriptions
Main unit
Characteristics
Supply power to microphones DC24V
Built-in amplifier
Control the active microphone number
Record output and built-in USB recording module
Allows the connection of up to 64 microphones (expandable up to 254 units)
Built-in monitor speaker
Power
2 x 50 W RMS 4-16 Ohm
Response
40-18000 Hz
Controls
Dynamic Mic volume
Aux volume
Monitor volume
Mic inner speaker volume
Bass and treble controls
Master output volume
Active Mic limit selector
Amplifier volume
Inputs
4 x group microphone input line DIN-8
1 x Mic (TRS Jack 6.3 mm)
1 x EFX in (TRS Jack 6.3 mm)
1 x Aux (RCA)
1x USB
Outputs
1 x Master (male XLR3)
1 x Line out (RCA)
1 x Rec (RCA)
1 x EFX out (TRS Jack 6.3 mm)
Power supply
230 V AC 50/60 Hz, 500W
Dimension
488 x 84 x 360 mm, 2 U rack 19”
G.W
17.5kg
Accessories
1x 13 m DIN-8 main cable
1x 1.8 m power cable
1X 2 m XLR M-F cable
2x 1.65 m RCA-TRS cable
2x fuse
1x manual
This product complies with the latest Directive 2014/30/UE (Electromagnetic Compatibility)
according to the following standards:
EN 55013:2013, EN 55020:2007+A11:2011,
EN61000-3-2:2014, EN61000-3-3:2013
furthermore, it complies with Directive 2014/35/UE (Low Voltage)
according to the following standard:
EN 60065:2014
HTDZ maintains a policy of constant research and development, therefore we reserve the right to apply improvements to
existing equipment without prior notice.
REV. 00 41/10

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HAITIAN ELECTRONIC TECHNOLOGY CO., LTD..
Dong an Industrial Park
Enping, Guangdong, China 529400
Tel: [phone]
Fax: [phone]
www.htdz.com.cn