Instructions

8
Test & adjustment
12. TEST & ADJUSTMENT
VELLEMAN P4301
V
GND
C11 C10
C13
D3
VR1
+
C4
R5
R6
R7
C5
C6
C7
C8
C9
C2
R11
R4
D1
D2
R8
R9
+
C12
R2
R10
T1
OUT GND
IC1 IC2 IC3
C1 C3
R1RV1
RV1
RV1
9-12VAC
12-15VDC
SPECTRUM
ANALYSER
R3
1.
2.
3.
FIG 1.0