Unscrew and attach the battery clip, be careful to place them correctly as shown in the
picture. Screw it back firmly.
11
battery clip assembly
MOTOR 2
MOTOR 1
Q2
L4
L2
Q1
L3
L1
+
+
+
+
R7
RV1
U3
R6
9V DC
V+ GND
D1
U4
2N2222
2N2222
R10
R8
R11
R9
R5
V+
G
ND M1 M2
MOTOR 2
MOTOR 1
Q2
L4
L2
Q1
L3
L1
+
+
+
+
R7
RV1
U3
R6
9V DC
V+ GND
D1
U4
2N2222
2N2222
R10
R8
R11
R9
R5
V+
G
ND M1 M2