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ICAS IDC-136-KIT Assembly Manual page 4

136khz direct conversion receiver

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Capacitors
Start soldering from C1 to C17. C10 is an electrolytic cap, so make sure that the
positive lead goes to [+] hole. Note that C15 is NOT used.
PWR
Connect the positive lead from the power socket to the hole marked [ 1 ], and the
negative (ground) lead to [ 2 ] respectively.
SW
Wire to the switch terminals.
LED
The bundled LED does have positive ( + ) and minus ( - ) markings on the back.
The (+) LED lead must be connected to the LED1 hole marked (+).
IC 1-3
Make sure to install IC's with the correct orientation as marked on the PCB.
OSC
The bundled oscillator is of a 8-pin DIP shape. Before installing the OSC, it is highly
recommend to install a 8-pin DIP socket. The Pin 1 of the socket must come to the
marking [1] of OSC. (For future use, there are extra holes available to install 14-pin
socket, but this time you can please ignore the extra holes.) Once the socket is
installed, then you can insert the oscillator. There is a black dot marking on the
oscillator, and it must come to the Pin 1 of the socket.
REG
Solder the 78L05 3-terminal voltage regular as marked on the PCB. Follow the
marked orientation carefully.
ANT-IN JP1
Connect the center lead from the BNC connector to the junction of C1 and C2, and the
ground lead to "GND" as marked on the PCB.

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