Block diagram – Elenco Radio Controlled Car Soldering User 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
-32-
ON/OFF
Light
Bulb