User manual SENNHEISER EM 203

[. . . ] INSTRUCTION FOR USE EM 203 CONTENTS 1 TECHNICAL OVERVIEW 1. 1 1. 2 1. 3 1. 4 2 Computer Control Diversity HIDYN plus® noise reduction system Block diagrams POSSIBLE TRANSMITTER/RECEIVER COMBINATIONS 2. 1 2. 2 2. 3 3 EM 203 receiver/SK 2012 TV(HiDyn plus®) and SKM 4031 HiDyn plus® EM 203 receiver/SK 50/250 UHF and SKM 5000 (HiDyn plus®) EM 203 receiver/SER 20 transceivers PUTTING THE EM 203 TO WORK 3. 1 3. 2 3. 3 3. 4 4 Mains connection Antenna connection AF connection Start-up procedure/operating indicators AVAILABLE MODULES 4. 1 4. 1. 1 4. 1. 2 4. 1. 3 4. 1. 4 4. 1. 5 4. 1. 6 4. 1. 7 4. 1. 8 4. 1. 9 4. 1. 10 4. 2 4. 2. 1 4. 2. 2 5 EM 1046 RX RECEIVER MODULE Adjustment Receiver frequencies Squelch Selection RF signal/deviation/battery condition Display-text/frequency/battery condition Entry of brief text System configurations and specifications Remote monitoring of transmitter battery Monitoring of audio signals Stand-by MONITOR LED indicators Monitor headphones TECHNICAL DATA Introduction The wireless Mikroport multi-channel sound transmission system EM 1046 is a transmitter/receiver system in a modular design. It offers comfortable handling and can be relied on for dependable service. · 3-channel diversity receiver EM 203 with microprocessor-controlled receiver modules Ultimate flexibility in the selection of transmitter and receiver frequencies thanks to easy-to-replace PROMs and EEPROMs. · The present manual shall help you to get acquainted with the EM 203 receiver. · The chapter "START-UP PROCEDURE" helps you to connect the unit to the mains and to put it to work. The chapter "AVAILABLE MODULES" provides you with information on every single module. [. . . ] 4. 1. 1) FUNCTION DISPLAY (RX) Depress SET to allow the squelch threshold to be set. Use keys Y N UP The squelch threshold can be set in 140 steps. The display indicates the level selected. DOWN to select the squelch threshold. · Keeping the key depressed accelerates adjustment. In addition, the left-hand LED bargraph display indicates the squelch threshold: · Use the RF scale (µV) to read off the squelch threshold. Depress and subsequently: SET The squelch threshold can be additionally checked on the monitor (monitor - see ch. 4. 1. 8). Y Y = YES ! The new data are stored. to store the squelch threshold or depress or: to stop storage. EM 203, Publ. 10/94 engl The display changes to , , Menu". N N = NO ! The program returns to the input routine. The display shows: 23 ESC Selection RF signal level/deviation/batery condition 4. 1. 4 DIVERSITY A B MENU Y N SET ESC MANIPULATION Choose option "DEV", "RF" or "BAT" to indicate the RF signal level, deviation or battery condition. Depress key Y N SET FUNCTION It is useful to have permanent settings to facilitate day-to-day applications. The LED bargraph displays on the EM 1046 RX receiver module can be set to four different modes: DISPLAY (RX) DEVIATION/FIELD STRENGTH OF THE ACTIVE CHANNEL FIELD STRENGTH OF CHANNELS A AND B (DIVERSITY) COMPARISON BETWEEN DEVIATION OF CHANNEL A AND B (DIVERSITY) TRANSMITTER BATTERY CONDITION/FIELD STRENGTH to select the parameters to be indicated. FOR FURTHER INFORMATION ON DATA INDICATED PLEASE REFER TO THE FOLLOWING PAGES! After you have selected the data to be indicated, depress SET and subsequently Y Y = YES ! The new setting is stored. The display changes to , , Menu". or depress or to stop storage. EM 203, Publ. 10/94 engl N N = NO ! The program returns to the original setting, e. The display shows: 24 ESC DIVERSITY A B MENU DEV. Y N SET RF. ESC CONTINUED FROM PAGE 24, CH. 4. 1. 4 MANIPULATION Use or Y N FUNCTION DEVIATION/FIIELD STRENGTH DISPLAY (RX) to be indicated: to select the parameters to be indicated. SET Depress and subsequently to store the latest setting or depress to stop storage. Y Y = YES ! N N = NO ! After having depressed and Y The left-hand bargraph display indicates 150 % DEV (= Deviation) in % ESC 100 Peak Hold DEV The right-hand bargraph display shows the field strength (RF= Radio Frequency) in µV µV 1000 100 RF EM 203, Publ. 10/94 engl 25 DIVERSITY A B MENU Y RFA N SET ESC RFB CONTINUED FROM PAGE 25, CH. 4. 1. 4 MANIPULATION Use or Y N FUNCTION FIELD STRENGTH OF CHANNELS A/B (DIVERSITY) DISPLAY (RX) to be indicated: to select the parameters to be indicated. SET Depress and subsequently to store the latest setting or depress to stop storage. Y Y = YES ! N N = NO ! After having depressed and Y ESC The left-hand bargraph display indicates Field strength(RF = Radio Frequency) in µV for diversity channel A µV 1000 100 NOTA BENE This display allows to monitor the RF level of both diversitiy channels and indicates possible antenna problems. RF The right-hand bargraph display shows the field strength (RF = Radio Frequency) in µV for diversity channel B The scale in µV near the right-hand bargraph display is to be used for both LED bargraph displays. µV 1000 100 RF EM 203, Publ. 10/94 engl 26 DIVERSITY A B MENU DEV A Y N SET ESC DEV B CONTINUED FROM PAGE 26, CH. 4. 1. 4 MANIPULATION Use or Y N FUNCTION DEVIATION CHANNELS A/B (DIVERSITY) DISPLAY (RX) to be indicated: to select the parameters to be indicated. SET Depress and subsequently to store the latest setting or depress to stop storage. Y Y = YES ! N N = NO ! After having depressed and Y The left-hand bargraph display indicates 150 % ESC DEV (= deviation) in % for diversity channel A. Peak Hold 100 DEV The right-hand bargraph display shows the 150 % Peak Hold 100 DEV (= deviation) in % for diversity channel B NOTA BENE The read-outs of both bargraph displays differ from each other only in case of faulty functioning. EM 203, Publ. 10/94 engl The scale in % near the left-hand bargraph display is to be used for both LED bargraph displays. DEV 27 DIVERSITY A B MENU Y N SET ESC CONTINUED FROM PAGE 27, CH. 4. 1. 4 MANIPULATION Use or Y N FUNCTION TRANSMITTER BATTERY CONDITION/FIELD STRENGTH DISPLAY (RX) to be indicated: to select the parameters to be indicated. SET Depress and subsequently to store the latest setting or depress to stop storage. Y Y = YES ! N N = NO ! After having depressed and Y The left-hand bargraph display indicates the 150 % ESC battery condition (bat = batterie) in % In contrast to DEV and RF, the battery condition is indicated by one LED only. If the transmitter battery does not transfer any data, the LED does not light up. 100 NOTA BENE · The display is only operative if SK 50 TV or SK 250 TV transmitters are used!After power-up of the transmitter, it will take the display about 10 seconds to indicate the battery condition. [. . . ] The antenna booster is powered by the EM 1046 system (Overload) The current across antenna socket A exceeds 150 mA!(Overload) The current across antenna socket B exceeds 150 mA!Check your antenna booster. DC-B OL-A OL-B EM 203, Publ. 10/94 engl 37 Monitor headphones 4. 2. 2 POWER + 12 V - 12 V +5V DC - A DC - B OL - A OL- B REMOTE + 20 dB + 20 dBu MANIPULATION FUNCTION The monitor socket is suited to connect mono or stereo headphones with an impedance of about 50 to 300 . [. . . ]