background image

 

__________________________________________________________________________________________________________________________________________________________ 

 

3

1. Assembly

  

(Skipping this can lead to troubles ! )

 

Ok, so we have your attention.  These hints will help you to make this project successful.   
Read them carefully. 

 

1.1 Make sure you have the right tools: 

 

• 

A good quality soldering iron (25-40W) with a 
small tip. 

• 

Wipe it often on a wet sponge or cloth, to keep 
it clean; then apply solder to the tip, to give it a 
wet look.  This is called ‘thinning’ and will protect the tip, and enables you to make good connections.  When sol-
der rolls off  the tip, it needs cleaning. 

 

 

• 

Thin raisin-core solder.  Do not use any flux or grease. 

 

 

• 

A diagonal cutter to trim excess wires.  To avoid injury 
when cutting excess leads, hold the lead so they can-
not fly towards the eyes. 

 

 

• 

Needle nose pliers, for bending 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 : 
 

þ 

Make sure the skill level matches your experience, to avoid disappointments. 

þ 

Follow the instructions carefully.  Read and understand the entire step before you perform each operation.  

þ 

Perform the assembly in the correct order as stated in this manual 

þ 

Position all parts on the PCB (Printed Circuit Board) as shown on the drawings.  

þ 

Values on the circuit diagram are subject to changes. 

þ 

Values in this assembly guide are correct* 

þ 

Use the check-boxes to mark your progress. 

þ 

Please read the included information on safety and customer service 

 

Typographical inaccuracies excluded.  Always look for possible last minute manual updates, indicated as ‘NOTE’ 

on a separate leaflet.

   

 
1.3 Soldering Hints : 

 

 
 

 

 

Mount the component against the 
PCB surface and carefully solder the 
leads

 

Make sure the solder

 

joints are 

cone-shaped and shiny

 

Trim excess leads as close as pos-
sible to the solder joint

 

 
 
 
 

 

 

 

 

 

 

 

0.000

 

Summary of Contents for K4400

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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

Page 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...

Page 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...

Page 14: ..._______________________________________________________________________________________________________________________________________________________ 14 22 DIAGRAM...

Reviews: