Datasheet

Record Playback Essentials
www.kitronik.co.uk/2149
Build Instructions
Before you start, take a look at the Printed Circuit Board (PCB). The components go in the side with the writing on
and the solder goes on the side with the tracks and silver pads.
Start with the five resistors:
The text on the PCB shows where R1, R2 etc go.
Ensure that you put the resistors in the right place.
PCB Ref
Value
Colour Bands
R1&R2
1K
Brown, black, red
R3&R4
4.7K
Yellow, purple, red
R5
100K
Brown, black, yellow
Solder the Integrated Circuit (IC) holder into IC1. When putting it into the board, be sure to get it
the right way around. The notch on the IC holder should line up with the notch on the outline
marked on the PCB.
The microphone should be soldered into the board where it is marked M1. The microphone is
polarized (the two pins are off centre). For it to work the part must go inside the circle marked on
the PCB.
The four ceramic disc capacitors should be soldered into the board as follows:
C1 = 1nF marked 102
C2  C4 = 100nF marked 104
Now solder in the two electrolytic capacitors. Make sure that the capacitors are the correct way
around. The capacitors have a - sign marked on them, which should match the same sign on the PCB.
The capacitors have text printed on the side that indicates their value. The capacitors are placed as:
C5 = 220µF
C6 = 4.7µF
PLACE RESI
STORS
1
SOLDER THE IC HOLDER
2
SOLDER THE MICROPHONE
3
SOLDER THE CERAMIC DISC CAPACITORS
4
SOLDER THE CERAMIC DISC CAPACITORS
5