CricketSat Receiver Assembly Instructions

• This is the instruction slides for the assembly of a receiver board.

• It would be a good idea to review soldering instructions before beginning.

Receiver Parts List• R2, 680 Ohm (blue, gray, brown, gold)• R3, 180K Ohm (brown, gray, yellow, gold)• R5, 10 Ohm (brown, black, black, gold) Optional• D1 Diode• C3, C4, and C5 capacitors, all three are 0.1 micro Farad• Switch• 8 pin Dip Socket• Red LED• C1, C2, and C6, capacitors, are all 47 micro Farad• 5 volt Regulator• 2-pin Speaker Pins• RF Receiver Module• 9 volt Battery Clip Wire• 6.25 inch Antenna Wire (1)• Audio Jack• Volume Control• LM386 Audio Amplifier Chip• Speaker• Receiver PC Board

Step 1 of 16

• Install resistors R2, R3, & R5. Solder and clip leads. R5 is optional.

• Resistors are not polarized so orientation is not important.

• R2, 680 Ohm (blue, gray, brown, gold)

• R3, 180k Ohm (brown, gray, yellow, gold)

• R5, 10 Ohm (brown, black, black, gold)

Step 2 of 16

• Install capacitors C3, C4, & C5. Solder and clip leads.

• These capacitors are not polarized so orientation is not important.

• All are 0.1 micro Farad capacitors (104 marking).

Step 3 of 16

• Install volume control R4.

• Use masking tape if needed to hold in place for soldering.

• Do not clip leads.

Step 4 of 16

• Insert diode D1.• Diode is polarized.

Install with white band oriented as shown.

• Look at the PC board to see the direction of the white band.

• Solder and clip leads.

Step 5 of 16

• Install switch.• Use masking tape if

needed to hold in place for soldering.

• Solder all eight leads.• Do not clip leads.

Step 6 of 16

• Install 8 pin DIP socket for U3.

• Insert all pins of the socket, notch is pointing up.

• Make sure all pins go through the board before soldering all pins.

• Socket will snap in to place.

• Do not clip wires.

Notch

Step 7 of 16

• Install red LED in D2.• The LED is polarized,

the long lead wire is positive. Look at the PC board for correct alignment.

• Insert flush to board.• Solder and clip leads.

Step 8 of 16

• Install capacitors C1, C2, & C6.

• The capacitors are polarized. The side with the white band is negative. The positive lead is longer. Look at the board for +/- signs.

• Solder and clip leads.• All of these capacitors are

all 47 micro Farad.

White band

Step 9 0f 16

• Install the 5 volt regulator in U1.

• The regulator is polarized and should be installed with the flat side facing away from the switch.

• Do not push flat to the board, allow the regulator to stand up on the board.

• Solder and clip leads.

Step 10 of 16

• Install 2 pin speaker jack in J2.

• Insert with longer leads on top of the PC board and solder shorter leads on bottom of board.

• Do not clip any of these leads.

Step 11 of 16

• Install audio jack J1.• Use masking tape to hold

in place while soldering if needed.

• Solder the three leads. Holes are oversized and can be partially filled with solder to hold in place.

• Pins may be clipped.

Next Step Special Note

• The next component to install is the radio receiver module. Care should be taken to orient this component correctly.

• You will have one of two different radio receiver modules, one without the silver “can” and one with.

• Both components operate exactly the same, they just look different.

Silver can

No Silver can

Step 12 of 16

• Install receiver module U2 into circuit board.

• Orient as shown with the module components facing outward on board. The silver “can” on some components should face inward.

• Solder and clip all eight leads.

Step 13 of 16

• Push 2” of battery clip wires down through the inner strain relief holes.

• The red lead goes through the hole near the B+ hole and the black lead goes through the inner hole near the B- hole.

• Push the bare ends of the wires back up and through the B+ & B- holes.

• Leave small loops and solder the bare ends on top of the PC board.

• Pull the wires tight to remove the loops.

Step 14 of 16

• Insert bare end of the antenna wire into smaller hole from under side.

• Solder on top of the PC board and clip lead.

• Push free end of the wire up through inner hole and pull tight.

• Orient antenna wire to be vertical.

Step 15 of 16

• Install Integrated Chip U3 into the socket.

• The chip pins may be flared out & may need to be bent slightly inward.

• Make sure the chip notch is facing upward to match the socket notch.

• Press firmly in place.• No soldering, no clipping.

Notch

Step 16 of 16

• Attach the speaker to J2.

• Orientation of speaker wires is not important.

• Align the holes in the white connector to pins on the circuit board.

• Press firmly into place.

Testing

• Slide the power switch to off.

• Attach a 9 volt battery.• Slide power to on.• LED will blink when a

signal is received.• With a transmitter turned

on sending a signal, you should hear a faint tone once every 20 – 30 secs.