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