Velleman projects K8097 Assembly instructions - Manual (Page 8)

- 8 -
Construction
Ceramic Capacitors
C17 ... C32 : 820pF (821) 
C33, C34 : 22pF (22) 
C35 : 470nF (474) 
Vertical diodes
7
6
SK6 
C...
D...
CATHODE
D1, D2 : 1N4007 
Watch the polarity! Watch the polarity!
Trimmer
5
RV...
RV1 : 10K 
RV2 : 10K 
RV3 : 10K 
RV4 : 10K 
USB connector
8
Adjust trimmer for apropriate output current.
C...
C...
Board to wire
9
SK1 : 4p  (MOTOR 1)
SK2 : 4p  (MOTOR 2)
SK3 : 4p  (MOTOR 3)
SK4 : 4p  (MOTOR 4)
SK7 : 2p  (SW1)
SK8 : 2p  (SW2)
SK9 : 2p  (SW3)
SK10 : 2p  (SW4)
SK11 : 2p  (SW5)
SK12 : 2p  (SW6)
SK13 : 3p  (OUT)
L...
L1, L2 : 330μH 
Inductor
10
C...
Watch the Watch the
polarity! polarity!
C1 : 4,7μF (50V) 
C6 : 100μF (35V) 
C9 : 100μF (35V) 
C12 : 100μF (35V) 
C15 : 100μF (35V) 
C39 : 100μF (35V) 
C40 : 330μF (16V) 
C41 : 100μF (  16V )!!!
Electrolytic capacitors
11
X1 : 12MHz 
X. . . . .
Terminal Block
Quartz crystal
12
13
SK14 : 2p  (AC power 10 -30V)
VR1: LM2575TADJ 
Switch regulator
14
VR1: LM257 
Bridge
15
23 23
 
# #
BR1 : RS603 (6A-200V) 