Phonic EAR Logibit 1200 User Manual

LOGIBIT 1200

MANUAL

LogiBit 1200 manual

Table of Contents

TABLE OF CONTENTS

1. FEATURES ON THE CONTROL PANEL............................................................... 1

2. MENU STRUCTURE................................................................................................. 2

2.1 Function keys............................................................................................................................ 2

2.2 Menu points.............................................................................................................................. 2

2.3 Illustration of menu structure.............................................................................................. 5

3. FEATURES ON THE BACK PANEL......................................................................... 8

3.1 General....................................................................................................................................... 8

3.2 Options...................................................................................................................................... 10

3.3 Installation of front to 19” rack............................................................................................ 11

3.4 Fuses and 115/230 volt AC exchanger................................................................................ 11

3.5 Control port............................................................................................................................. 12

3.6 Serial port.................................................................................................................................. 13

4. SAFETY INFORMATION......................................................................................... 14

5. APPROVAL................................................................................................................ 14

6. BLOCK DIAGRAM.................................................................................................... 15

7. SPECIFICATIONS..................................................................................................... 16

7.1 Technical data............................................................................................................................ 16

7.2 Special functions...................................................................................................................... 17

7.3 Options...................................................................................................................................... 17

LogiBit 1200 manual

1. FEATURES ON THE CONTROL PANEL

➁➂

Features on the Control Panel

➀

➀ On/Off Switch: This switch switches the ampliﬁ er on and off.

➁ On indicator: This green LED lights when the ampliﬁ er is on.

➂ LA +18 dB indicator: This red LED lights, when the signal level on the teleloop

ampliﬁ er has reached maximum. With correct ampliﬁ er adjustment this LED should never light.

➃ INPUT +10 dB indicator: This red LED lights, when any one of the two to ﬁ ve +10 dB indicators on the back of the ampliﬁ er lights. With correct ampliﬁ er adjustment this LED should only blink when there are loud passages otherwise the level of the signal fed to the input of the ampliﬁ er is too high.

➄ REC indicator: This green LED lights, when REC function is chosen. The green LED is turned off, when the play function is chosen.

➅ AGC indicator: This green LED lights, when the AGC-circuit is active.

➃➅➆➄➇

➆ Display

➇ 4 function keys: The LogiBit 1200 ampliﬁ er’s 4 function keys are described in

section 2.1 Function keys.

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LogiBit 1200 manual

2. MENU STRUCTURE

2.1 FUNCTION KEYS

Menu Structure

➁

➀

➂

➃

➀ LEFT/UNDO: With this key you can move to the left in the menu structure.

The key is also used to undo changes in a parameter, which has not already been saved.

➁ UP/INCREASE: With this key you move upward in the menu structure. It can also be used to change/increase a parameter.

➂ RIGHT/SAVE: With this key you move to the right in the menu structure. The key is also used to save changes in a parameter.

➃ DOWN/DECREASE: With this key you move downward in the menu structure. The key is also used to change/decrease a parameter.

2.2 MENU POINTS

SERVICE MODE: The individual parameters in the ampliﬁ er can only be changed

when the LogiBit ampliﬁ er is in SERVICE MODE. To do this you must switch off the ampliﬁ er at the on/off switch, then while holding function key ➁ up/increase and ➃ down/decrease in at the same time, turn on the ampliﬁ er. Display will show “SERVICE” for a short period. If the LogiBit ampliﬁ er is not put in SERVICE MODE the only parameters that can be changed are RECORD and CONTRAST.

WARNING! The above may only be carried out by authorized Phonicear personnel. It is strongly advised that no unauthorized person is allowed to put the ampliﬁ er in SERVICE MODE.

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LogiBit 1200 manual

RECORD: Select “ON” when recording thereby switching off TAPE INPUT. This avoids feedback in situations where a tape recorder is connected to both TAPE INPUT and TAPE OUTPUT. In the “OFF” position both TAPE INPUT and TAPE OUTPUT are active. REC ON/OFF function can also be changed without the ampliﬁ er being in SERVICE MODE.

CONTRAST: Used for adjusting the contrast in the display. Contrast can also be adjusted, without the ampliﬁ er being in SERVICE MODE.

CODE: In connection with an upgrading of a LogiBit 1200 to a LogiBit 1260 it is necessary to type in a code (see also the next point ID). A fter the code has been typed in, the ampliﬁ er should be switched off for a short period to allow the upgrading to take effect.

ID: Before you can receive the code used in upgrading a LogiBit 1200 to a LogiBit 1260 it is necessary to give the ID-number of the ampliﬁ er to your Logia dealer.

Menu Structure

AUTOCAL: In connection with a new installation, changes of the area size or changes in the dimensions of the teleloop cable, AUTOCAL shall be “ON” the ﬁ rst time the ampliﬁ er is turned on. In this position the ampliﬁ er calibrates with the teleloop cable. When the calibration is ﬁ nished AUTOCAL should be in the “OFF” position. Thereby you avoid hearing on the teleloop the calibra ting signals the ampliﬁ er uses when it is turned on. A fter the ampliﬁ er has completed its calibrating procedure for the ﬁ rst time, the current in the teleloop cable will automatically be set to 1 ampere. LA VOL will be automatically set to 0 dB.

LA VOL: Used to adjusting the current in the teleloop cable and thereby the strength of the magnetic ﬁ eld. After the ampliﬁ er has completed its calibrating procedure for the ﬁ rst time, the current in the teleloop cable will automatically be set to 1 ampere. LA VOL will be automatically set to 0 dB.

BASS: Select BASS to adjust the bass on the teleloop signal.

AGC MODE: Menu point REMOTE allows, that the AGC-circuit can be

switched on and off via the 25 pin Sub-D port marked CONTROL on the back panel of the ampliﬁ er. Select “OFF” to switch off the AGC-circuit. Under normal operating conditions, select “ON”, to activate the AGC-circuit.

AGC GAIN: Used to adjust the number of required dBs that the AGC-circuit should use to strengthen a weak signal. The AGC-circuit is able to reduce a powerful signal with up to 20 dBs.

TREBLE: Select TREBLE to adjust the treble on the teleloop signal.

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LogiBit 1200 manual

MIC.1- 5: Select this menu point to change the parameters for respectively microphone and line-in 1-5. Microphone and line-in 3-5 are not standard, but can be built in as an option.

VOLUME: Used for adjusting the signal level immediately before mixing point. A s a starting point choose 0 dB. If the output signal is distorted, this parameter should be reduced.

REMOTE: REMOTE set to “ON” allows mute of line-in via the 25 pin Sub-D port marked CONTROL on the back panel of the ampliﬁ er.

MIX.OUT: This menu point determines, whether a signal connected to an input can be heard on the teleloop (LA) or not (NONE).

TA P E : Select TAPE to change the parameters for TAPE INPUT.

VOLUME: Used for adjusting the signal level immediately before mixing

point. As a starting point choose 0 dB. If the output signal is distorted, this parameter should be reduced.

Menu Structure

MIX.OUT: This menu point determines, whether a signal connected to an input can be heard on the teleloop (LA) or not (NONE).

REC.1 & 2: Select this menu point to change the parameters for the wire less receiver modules. The wireless TOA receiver modules are not standard, but can be built into the ampliﬁ er as an option.

VOLUME: Used for adjusting the signal level immediately before mixing point. As a starting point choose 0 dB. If the output signal is distorted, this parameter should be reduced.

STARTUP: Select “ON” and the wireless TOA receiver modules are turned on, when the ampliﬁ er is turned on. Choose “OFF” and the wireless microphones are switched off when the ampliﬁ er is turned on.

REMOTE: REMOTE set to “ON” allows the wireless TOA receiver modules respectively switch on and off via the 25 pin Sub-D port marked CONTROL on the back panel of the ampliﬁ er.

MIX.OUT: This menu point determines, whether a signal connected to an input can be heard on the teleloop (LA) or not (NONE).

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Phonic EAR Logibit 1200 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual