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Part 3 – Assembly

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

By on January 6, 2011
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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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