Elenco Radio Controlled Car Soldering - Manual (Page 33)

SCTX2BC PIN DESCRIPTION
# NAME DESCRIPTION
1 R RIGHT STEERING FUNCTION
2 T1 TEST USE ONLY
3 VSS NEGATIVE POWER SUPPLY
4 B BACKWARD FUNCTION
5 F FORWARD FUNCTION
6 TB DO NOT USE
7 ENC ENCODING SIGNAL (NO CARRIER)
8 EC ENCODING SIGNAL (WITH CARRIER)
9 VDD POSITIVE POWER SUPPLY
10 PC POWER CONTROL OUTPUT
11 Y OSCILLATOR OUTPUT
12 X OSCILLATOR INPUT
13 T2 TEST USE ONLY
14 L LEFT STEERING FUNCTION
Encoding
Circuitry
27.9 MHz
Signal
Filter/
Amplifier
Driving Motor
Steering Motor
Filter/
Amplifier
Decoding
Circuitry
L
R
F
B
Pulse Sequence,
length depends on
which command is
being sent
Sequence
of Radio
Frequency
Pulses Pulse Sequence,
length depends on
which command
was sent
BLOCK DIAGRAM
HOW IT WORKS
BLACK
RED
BLUE
ORANGE
Steering
Motor
PCB WIRING PLAN
Driving
Motor
GREEN
YELLOW
SCRX2BC PIN DESCRIPTION
# NAME DESCRIPTION
1 V4 INVERTER 2 OUTPUT FOR AMPLIFIER
2 VSS NEGATIVE POWER SUPPLY
3 DI INPUT PIN OF THE DECODING SIGNAL
4 X OSCILLATOR INPUT
5 Y OSCILLATOR OUTPUT
6 R RIGHT STEERING OUTPUT
7 L LEFT STEERING OUTPUT
8 RX_ RIGHT DISABLE (NOT USED)
9 LX_ LEFT DISABLE (NOT USED)
10 B BACKWARD OUTPUT
11 F FORWARD OUTPUT
12 TB DO NOT USE
13 VDD POSITIVE POWER SUPPLY
14 V1 INVERTER 1 INPUT FOR AMPLIFIER
15 V2 INVERTER 1 OUTPUT FOR AMPLIFIER
16 V3 INVERTER 2 INPUT FOR AMPLIFIER
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ON/OFF Light
Bulb