GSM Remote Control – 2 IN and 2 OUT DTMF
Part 3 – Assembly

By on January 6, 2011

On the construction perspective, the remote control does not present many difficulties, just the obvious ones that appear when working with circuits requiring superficial assembly components. As usual, there is a PCB with double plating where to mount all components.

Top Layer

Top Layer

Bottom Layer

Bottom layer

PARTS LIST:
R1: 0,1 ohm 1W (1206)
R2: 2,2 kohm (0805)
R3: 1 kohm (0805)
R4: 100 kohm (0805)
R5, R6, R11, R18, R22: 4,7 kohm (0805)
R7, R8: 330 ohm (0805)
R9: 4,7 kohm (0805)
R10, R12: 10 kohm (0805)
R11: 4,7 kohm (0805)
R13, R14, R17: 330 ohm (0805)
R15, R16: 1,5 kohm (0805)
R20: 1 kohm (0805)
R21: 2,2 kohm (0805)
R23: 330 kohm (0805)
R24: 39 kohm (0805)
R25: 56 kohm (0805)
R26, R27: 100 kohm (0805)
R19: unused
C1, C4, C6, C7, C13, C18, C20: 100 nF multilayer (0805)
C2: 1000 µF 25 VL electrolytic
C3: 100 pF ceramic (0805)
C5, C11, C12: 100 µF 16 VL electrolytic
C8, C14, C15, C16: 470 µF 6,3 VL tantalum (CASE-D)
C9, C10: unused
C17, C19: 10 pF ceramic (0805)
Q1: unused
Q2: Crystal 3,579545 MHz (HC49/4H SMX)
U1: MC34063AD
U2: unused
U3: 24FC256-SN
U4, U5: TLP181
U6: PIC18F46K20-I/PT (MF857)
U7: MT88L70AS
D1, D3, D4: 1N4007
D2: 1N5819
T1, T2: BC817
LD1, LD2: LED 3 mm red
LD3, LD4: LED 3 mm yellow
LD5: LED 3 mm green
L1: Inductor coil 20 µH
RL1, RL2: Relay 5V single pole
P1: Microswitch
F1: Slow fuse 2 A (1206)
Miscellaneous:
– Screw connector 2 poles (2 pz.)
– Screw connector 3 poles (2 pz.)
– DC plug
– Male strip 6 poles
– Female strip 3 poles
– Female strip 16 poles
– Female strip 4 poles 90°
– PCB

Download PCB details (Layout and Gerber): PCB

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