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12

20.  HOOK-UP AND USE 

Power supply : 

• 

Batteries : 4 x 1.5V AAA (use included battery holder) 

Idle power consumption : 15µA max. 
Record power consuption : 26mA 
Playback : 50mA max. 

 

• 

Transformer : secundary : 9 to 12VAC

 

Idle power consumption : 7mA 
Record power consumption : 40mA 
Playback : 75mA max. 

 
Hook-up of one unit : 

• 

Mount wire jumpers JR & JE 

• 

For message auto-repeat, connect RPT to STRT (by means of a switch) 

• 

RPT and STRT must not be connected during message recording. 

 

Hook-up of two or more units :

 

• 

Mount JR and JE on the last module 

• 

Mount JC on the other module(s) 

• 

For message auto-repeat, connect RPT of the last module with STRT of 
the first module. 

• 

During replay, a ‘click’ sound is heard at switchover between two units. 

• 

If 5 or more units are put in cascade, the voltage regulator (VR1) of the 
first unit needs to be cooled with a small heatsink. 

  

Signal input :

 

 

• 

Microphone :  

Mount wire jumper JM on the first module. 
 

• 

Line input : 

Enter the audio signal between AIN and GND 
Max input level : 25mV rms 
 

Signal output :

 

 

• 

Loudspeaker :  

Connect an 8 ohm loudspeaker between SP- and SP+ of the first module. 
 

Содержание K4400

Страница 1: ...ophone included 12 to 20 seconds of recording time per module No memory loss in case of power failure Loudspeaker output Daisy chain up to five units for extended recording time Add an optional rotary...

Страница 2: ...d 2 3 Aranciato Laranja Naranjado Oranssi Orange Orange Orange Orange Orange Orange Oranje 3 4 Giallo Amarelo Amarillo Keltainen Gul Gul Gul Gelb Yellow Jaune Geel 4 5 Verde Verde Verde Vihre Gr n Gr...

Страница 3: ...nding leads or to hold components in place Small blade and phillips screwdrivers A basic range is fine For some projects a basic multi meter is required or might be handy 1 2 Assembly Hints Make sure...

Страница 4: ...R1 10 1 0 0 B q R2 470 4 7 1 B q R3 470 4 7 1 B q R4 2K2 2 2 2 B q R5 10K 1 0 3 B q R6 10K 1 0 3 B q R7 10K 1 0 3 B q R8 10K 1 0 3 B q R9 47K 4 7 3 B q R10 47K 4 7 3 B q R11 47K 4 7 3 B q R12 47K 4 7...

Страница 5: ...q D10 1N4148 q D11 1N4148 q D12 1N4148 q D13 1N4148 q D14 1N4148 q D15 1N4007 q D16 1N4007 q D17 1N4007 q D18 1N4007 4 IC SOCKETS Watch the posi tion of the notch q IC1 24P 5 LEDs Watch the polarity...

Страница 6: ...7 ELECTROLYTIC CAPACITORS Watch the polarity C q C15 4 7 F q C16 47 F q C17 47 F q C18 47 F q C19 47 F q C20 1000 F 8 TRANSISTORS q T1 BC547B q T2 BC547B q T3 BC547B q T4 BC547B q T5 BC547B q T6 BC55...

Страница 7: ..._________________________________________________________________ 7 12 SWITCH q SW2 1P ON OFF 13 IC Watch the position of the notch q IC1 ISD1012 ISD1020 or eq 14 POWER SUPPLY MAINS OR BATTERIES FUSE...

Страница 8: ...6 CHOOSE POWER SUPPLY Single unit with microphone and speaker transformer operated Single unit with microphone and speaker battery operated mount these wire jumpers mount these wire jumpers electret m...

Страница 9: ...__________________________________ 9 17 CHOOSE INPUT AND OUTPUT DEVICE mount these wire jumpers mount these wire jumpers Single unit with line input and speaker output Single unit with microphone inpu...

Страница 10: ..._______________________________________________________________________________________________________ 10 18 CASCADE OPERATION OF MULTIPLE UNITS FOR EXTENDED RE CORDING TIME mount these wire jumpers...

Страница 11: ...____________________________________________________________________________________________________________________________ 11 19 MOUNT AN OPTIONAL ROTARY SWITCH TO ALLOW MESSAGE SELECTION WITH A SIN...

Страница 12: ...RPT to STRT by means of a switch RPT and STRT must not be connected during message recording Hook up of two or more units Mount JR and JE on the last module Mount JC on the other module s For message...

Страница 13: ...lights Press SW2 to record Releasing SW2 will end the recording session LD2 lights when the memory is full How to replay a message Put SW1 in the position PLAY Press SW2 briefly Do not continue to pr...

Страница 14: ..._______________________________________________________________________________________________________________________________________________________ 14 22 DIAGRAM...

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