background image

LogiBit 1200 manual

Menu Structure

3

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). After 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. 

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. 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.

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.

Summary of Contents for LOGIBIT 1200

Page 1: ...LOGIBIT 1200 MANUAL...

Page 2: ...URES ONTHE 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...

Page 3: ...to five 10 dB indicators on the back of the amplifier lights With correct amplifier adjustment this LED should only blink when there are loud passages otherwise the level of the signal fed to the inpu...

Page 4: ...he menu structure The key is also used to change decrease a parameter 2 2 MENU POINTS SERVICE MODE The individual parameters in the amplifier can only be changed when the LogiBit amplifier is in SERVI...

Page 5: ...position the amplifier calibrates with the teleloop cable When the calibration is finished AUTOCAL should be in the OFF position Thereby you avoid hearing on the teleloop the calibra ting signals the...

Page 6: ...d be reduced 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...

Page 7: ...5 2 3 ILLUSTRATION OF MENU STRUCTURE LogiBit 1200 manual Menu Structure...

Page 8: ...6 LogiBit 1200 manual Menu Structure...

Page 9: ...7 LogiBit 1200 manual Menu Structure...

Page 10: ...move the earth or you run the risk of getting an electric shock FUSE COMPARTMENT This contains the AC fuses The fuse compartment makes it possible to choose between 230 volt AC or 115 volt AC NB See A...

Page 11: ...m potentiometer is adjusted so that the 10 dB does not light constantly The light should only blink during loud passages otherwise the signal is too high PHA PWR When this switch is active it gives a...

Page 12: ...ns should only be undertaken by qualified personnel Removing the Remove the 3 screws on the top of the amplifier Place the tip of blank panel a screwdriver in the hole in the panel and pull downwards...

Page 13: ...ed with a small screwdriver on the trim control Turn the trim control fully to the left and the receiver is least sensitive i e it requires high levels of noise to activate the receiver Turn the trim...

Page 14: ...nnected from pin 20 to pin 7 When the contact is activated If the wireless microphone is switched on when the contact is activated the microphone will switch off If the wireless microphone is switched...

Page 15: ...amplifier is turned on The diode is connected from pin 25 to pin 13 3 6 SERIAL PORT Serial plug connections Pin 1 4 6 7 and 9 are not used Pin 2 receives data input Pin 3 transmits data output Pin 5 i...

Page 16: ...n or moisture CAREFUL This terminal is used only as a common ground of the units to avoid unwanted noise between the units The amplifier should not be covered There should be free air circulation duri...

Page 17: ...15 6 BLOCK DIAGRAM LogiBit 1200 manual Block Diagram...

Page 18: ...mV Line in 2 5 kohm 34 dBu 15 mV Tape input 47 kohm 10 dBu 150 mV Tone control Bass 6 dB Treble 6 dB Output level Tape output 600 ohm 14 dBu 150 mV Power consumption Average load 140 W Maximum load 33...

Page 19: ...nd line input 15 volt phantom power option for each microphone input Bass and treble adjustment Manual mute of selected input via keys on front panel Remote mute of selected input via contact closures...

Page 20: ...Your local dealer or service agent Strandvejen 58 tel 45 3917 7101 e mail info phonicear dk 2900 Hellerup Denmark fax 45 3927 7900 web www phonicear dk 9 001 006 060...

Reviews: