Velleman 8020 User Manual Page 25

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25
Diagram
POWER SUPPLY SECTION
CONTROLLER SECTION
© Velleman Kit
D10
1N4007
D11
1N4007
D16
1N4007 D19
1N4007
D18
1N4007
D17
1N4007
C10
100n
C11
100n
A
D
C
B
230V
N
B+C
115V
L
A+B
C+D
IO
GND
VR2
uA7805
+5V
C15
100n
C14
100n
C13
100n
C12
100n
C23
100µ
C27
1000µ
C26
1000µ
C24
470µ
+12.5V
R35
1R
SK10
SK09
SK08
R09
680R
C08
100n
Mains selection
MAINS
TR1
D13
1N4007
D12
1N4007
D15
1N4007
D14
1N4007
D09
1N4148
RY9
PWR
+12V
+12V
C25
1000µ
C29
47µ/350V
C28
47µ/350V
C30
47µ/350V
+300V
R34
27K/0.6W
R30
1K
R31
1K
C20
22n/630V
I
O
GND
VR1 uA7812P
R33
27K/0.6W
R32
27K/0.6W
LD8
L-424YDT
18V
18V
12V
220V
0
21V@230Vac in
265V@230Vac in
RA0
17
RA1
18
RA2
1
RA3
2
RB0
6
RB1
7
RB2
8
RB3
9
RB4
10
RB5
11
RB6
12
RB7
13
VSS
5
MCLR/VPP
4
OSC1/CLKIN
16
T0CKI
3
OSC2/CLKOUT
15
VDD
14
IC1
PIC16C54RC
R39
4K7
C07
220p
Input1
Input2
Input3
Input4
Monitor
+6dB
Mute
R47
10K
R44
10K
R43
10K
R42
10K
R40
10K
+5V SW4
SW3
SW2
SW1
SW5
R45
1K
R48
1K
+5V
R46
1K
R41
1K
LD1
L-424YDT
LD2
L-424YDT
LD5
L-424YDT
LD6
L-424YDT
LD7
L-424YDT
LD4
L-424YDT
LD3
L-424YDT
C09
100n
REC
TUNER
CD
PU/LINE
STBY / MUTE
T09
BC557
R38
10K
T10
BC547
R37
4K7
R36
10K
+5V
PWR
D20
1N4007
+12V
+5V
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