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Digital Hand Held Transmitter

Rio Rancho, NM

17

Service and Repair

If your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equip-

ment needs repair.  Make sure you have followed the setup procedure and operating instructions.  Check the inter-

connecting cables and then go through the 

Troubleshooting 

section in this manual.

We strongly recommend that you 

do not

 try to repair the equipment yourself and 

do not

 have the local repair shop 

attempt anything other than the simplest repair.  If the repair is more complicated than a broken wire or loose con-

nection, send the unit to the factory for repair and service.  Don’t attempt to adjust any controls inside the units.  

Once set at the factory, the various controls and trimmers do not drift with age or vibration and never require read-

justment.  

There are no adjustments inside that will make a malfunctioning unit start working

.

LECTROSONICS’ Service Department is equipped and staffed to quickly repair your equipment.  In-warranty repairs 

are made at no charge in accordance with the terms of the warranty.  Out-of-warranty repairs are charged at a mod-

est flat rate plus parts and shipping.  Since it takes almost as much time and effort to determine what is wrong as it 

does to make the repair, there is a charge for an exact quotation.  We will be happy to quote approximate charges by 

phone for out-of-warranty repairs.

Returning Units for Repair

For timely service, please follow the steps below:

A.

  DO NOT return equipment to the factory for repair without first contacting us by letter or by phone.  We need to 

know the nature of the problem, the model number and the serial number of the equipment.  We also need a 

phone number where you can be reached 8 A.M. to 4 P.M. (U.S. Mountain Standard Time).

B.

  After receiving your request, we will issue you a return authorization number (R.A.).  This number will help 

speed your repair through our receiving and repair departments.  The return authorization number must be 

clearly shown on the 

outside

 of the shipping container.

C.

  Pack the equipment carefully and ship to us, shipping costs prepaid.  If necessary, we can provide you with the 

proper packing materials.  UPS is usually the best way to ship the units.  Heavy units should be “double-boxed” 

for safe transport.

D.

  We also strongly recommend that you insure the equipment, since we cannot be responsible for loss of or 

damage to equipment that you ship.  Of course,  we insure the equipment when we ship it back to you.

Mailing address: 

 

Shipping address: 

 

Telephone:

 

Lectrosonics, Inc. 

 

Lectrosonics, Inc. 

 

(505) 892-4501 

PO Box 15900 

 

581 Laser Rd.   

 

(800) 821-1121 Toll-free 

Rio Rancho, NM 87174 

Rio Rancho, NM  87124  

(505) 892-6243 Fax 

USA 

   USA

 

   

Web: 

   E-mail:

 

www.lectrosonics.com  

[email protected]

Lectrosonics Canada:
Mailing 

Address: 

 Telephone: 

  E-mail:

 

720 Spadina Avenue,   

(416) 596-2202  

 

Sales:    [email protected] 

 

Suite 600 

 

 

(877) 753-2876 Toll-free  

Service:  [email protected] 

Toronto, Ontario M5S 2T9 

(877-7LECTRO) 

 

   (416) 

596-6648 

Fax 

 

Summary of Contents for DHu

Page 1: ...Rio Rancho NM USA www lectrosonics com INSTRUCTION MANUAL DHu Digital Handheld Transmitter ...

Page 2: ...wering On 6 Powering Off 6 Standby Mode 6 Power Menu 6 Navigating Menus and Screens 7 Menu Map 7 Input Gain Adjustment 10 Programmable Switch Functions 10 Parts and Accessories 12 Mic Capsule Adjustments 13 EXPERT LEVEL ADJUSTMENT 13 Specifications 14 Wireless Designer Software 14 Firmware Update Instructions 14 Troubleshooting 15 Service and Repair 17 Returning Units for Repair 17 ...

Page 3: ...tion since the user s hands have little or no effect on the RF output power Microphone Capsules The transmitter is available from Lectrosonics with the HHC and HHVMC cardioid condenser capsules Capsules from several other manufacturers are also available for use with the HH those with a 1 25 x 28 thread pitch and three contact rings Condenser or dynamic microphone capsules can be used to suit the ...

Page 4: ...s cardioid electret with VariMic preamp Along with these two models from Lectrosonics a variety of different capsules with a common thread and electrical interface are available from the major microphone manufacturers A list of compatible capsules is on the website at www lectrosonics com listed the DHu product page Do not touch the contacts between the mic capsule and transmitter body When necess...

Page 5: ...om rattling as the transmitter is being handled Pull the eject lever outward to remove the batteries The battery tips will move outward making them easier to grasp Pull eject lever outward to release batteries from contacts Control Panel Six membrane switches on the control panel are used to set up the transmitter by navigating the menus on the LCD and selecting the desired values Power Button Mod...

Page 6: ...g Press the button and release before the status bar completes This allows the transmitter to be set up without the risk of creating interference for other wire less systems that are operating in the vicinity A notice will appear briefly confirming that the RF out put of the transmitter is turned off followed by the Main Window The antenna symbol will blink as a reminder that the RF output is turn...

Page 7: ... MENU SEL button to enter the setup menu Use the UP DOWN buttons to highlight the menu item 2 Press the MENU SEL button to enter the setup screen for that item Use the UP DOWN buttons to select the desired value or mode Gain Freq ProgSw Rolloff 40 20 0 Gain 25 3 Press the MENU SEL button to save this setting and return to the previous screen 4 Press the BACK button to return to the Main Window Men...

Page 8: ... SEL button to toggle between options and UP and DOWN arrows to adjust Freq Grp x 628 200 Gain Freq ProgSw Rolloff Frequency Group Frequency ProgSw The Programmable Switch on the housing can be set to provide several functions or it can be bypassed NOTE See section on Programmable Switch Functions Functions none Mute Power TalkBk Cough PTT Gain Freq ProgSw Rolloff Rolloff A low frequency roll off ...

Page 9: ...is successful The transmitted audio will then be encrypted and can only be listened to if the receiver has the matching encryp tion key The DHu has three options for encryption keys Standard This is the highest level of security The encryption keys are unique to the receiver and there are only 256 keys available to be transferred to a transmitter The receiver tracks the number of keys generated an...

Page 10: ... ob serving the modulation LEDs Use the UP DOWN buttons to adjust the gain until the 20 dB LED starts to flicker red and the 10 dB glows green 5 Once the audio gain has been set the signal can be sent through the sound system for overall level adjustments monitor settings etc To do this the unit must be set to transmit see Powering On and Off and the Standby Mode Programmable Switch Functions A sp...

Page 11: ...Venue Wideband receiver with firmware Ver 5 2 or higher When pressed and held in the side button re directs the audio output to a different audio channel on the receiver As soon as the switch is released audio is returned to the program channel Main Window Displays for Function The function of the Programmable Switch is displayed in the LCD Main Window In the None and Power functions no indication...

Page 12: ...h microphone flags commonly used in ENG for network or station ID to keep the flag from covering the side switch and LCD HH2SEN Adapter Adapts Sennheiser G2 G3 and 2000 Series micro phone capsule heads to the HH transmitter Transmitter interface Capsule interface HHA Adapter by Ambient Recording Adapts Neumann KK104 and KK105 and Sennheiser cap sules for the 5000 Series wire less with Shure style ...

Page 13: ...n the LCD The attenuator control is a 16 position switch that attenuates the audio in 1 dB steps It is marked 0 through F where F is minimum attenuation and 0 is maximum attenuation Rotating it clockwise increases the loudness and counter clockwise decreases the loudness Reset the switch to F for subsequent users Attenuator switch set at F for normal operation LO MID HI bass mid treble HHVMC only ...

Page 14: ...uency selection steps Selectable 100 kHz or 25 kHz Audio Frequency Response 20 Hz 20 kHz 3dB RF Power output Selectable 25 or 50 mW Frequency stability 0 002 Digital Modulation 8 psk Spurious radiation Compliant ETSI EN 300 422 1 v1 4 2 Operating temperature range 20 C to 50 C Input compressor Dual envelope compressor 30 dB range Gain control range 45 dB semi log menu driven control 1 dB steps Mod...

Page 15: ... muted Unmute receiver 2 Receiver audio output levels set too low 3 Receiver audio output is disconnected or cable defective or mis wired 4 Sound system or recorder input level is turned down DISTORTED SOUND 1 Transmitter Audio Gain set too high Speak or sing into the transmitter and check the Audio Level LEDs and or Audio Level bar graph in the transmitter LCD and corresponding indicators on the ...

Page 16: ...Délivrance de licences sur une base volontaire pour les appareils radio de faible puissance exempts de licence et exploités dans les bandes de télévision Per RSS Gen This device complies with Industry Canada s license exempt RSSs Operation is subject to the following two conditions 1 This device may not cause interference 2 This device must accept any interference including interference that may c...

Page 17: ...out of warranty repairs Returning Units for Repair For timely service please follow the steps below A DO NOT return equipment to the factory for repair without first contacting us by letter or by phone We need to know the nature of the problem the model number and the serial number of the equipment We also need a phone number where you can be reached 8 A M to 4 P M U S Mountain Standard Time B Aft...

Page 18: ...DHu LECTROSONICS INC 18 ...

Page 19: ...Digital Hand Held Transmitter Rio Rancho NM 19 ...

Page 20: ... item Lectrosonics Inc will pay for the cost of returning your equipment to you This warranty applies only to items returned to Lectrosonics Inc or an authorized dealer shipping costs prepaid within one year from the date of purchase This Limited Warranty is governed by the laws of the State of New Mexico It states the entire liablility of Lectrosonics Inc and the entire remedy of the purchaser fo...

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