1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D
D
C
C
B
B
A
A
1
Steelpark Road
Coombs Wood
Halesowen
UK
1
9419
3
20/02/2008
15:20:05
9419.Sch
Title:
Size:
Number:
Date:
Original File:
Revision:
Sheet
of
Time:
A3
www.laney.co.uk
Industrial Estate West
Nexus Footswitch Controller
1
8
9
1
5
SK3
DB15M
RA0/AN0
2
RA1/AN1
3
RA2/AN2
4
RA3/AN3/VREF
5
RA4/T0CKI
6
RA5/AN4/SS
7
RB0/INT
21
RB1
22
RB2
23
RB3
24
RB4
25
RB5
26
RB6
27
RB7
28
RC0/T1OSO/T1CKI
11
RC1/T1OSI
12
RC2/CCP1
13
RC3/SCK/SCL
14
RC4/SDI/SDA
15
RC5/SDO
16
RC6
17
RC7
18
MCLR/VPP
1
OSC1/CLKIN
9
OSC2/CLKOUT
10
VSS
8
VSS
19
VDD
20
PIC16C73
U1
XT1
4MHZ CRY
C1
22P
C2
22P
3
3
K
S
M
R
2
2
3
3
K
S
M
R
2
3
3
3
K
S
M
R
2
4
3
3
K
S
M
R
2
1
1
0
0
K
S
M
R25
1
0
0
K
S
M
R26
TS1
BC517
TS2
BC517
TS3
BC517
TS4
BC517
TS5
BC517
10K SM
R7
10K SM
R6
10K SM
R8
10K SM
R9
10K SM
R10
1K SM
R39
1K SM
R35
1K SM
R36
1K SM
R37
1K SM
R38
G
C4
100N
G
G
+5V
+5V
G
+5V
+5V
10K SM
R1
G
G
G
G
G
G
G
+5V
G
47K SM
R19
47K SM
R20
+5V
+5V
330R SM
R41
+5V
4
5
6
74HCT08
U2B
9
10
8
74HCT08
U2C
12
13
11
74HCT08
U2D
To LEDs
To Switches
1
0
K
S
M
R
2
1
0
K
S
M
R
3
1
0
K
S
M
R
4
1
0
K
S
M
R
5
+5V +5V +5V
+5V
1
0
K
S
M
R11
1
0
K
S
M
R13
1
0
K
S
M
R15
1
0
K
S
M
R17
+5V
+5V
+5V
+5V
I2C Memory
To Relays
F
E
T
_O
P
T
U
B
E
_O
P
C
O
M
P
_O
P
G
R
A
P
H
IC
_O
P
P
A
R
A
_O
P
FET_SW
TUBE_SW
COMP_SW
GRAPHIC_SW
PARA_FS
1
8
9
1
5
Boxed Parts not on pcb
Part of Footswitch assembly
Rev
Vol 1/2
CHC
CHB
CHA
FET_FS
TUBE_FS
COMP_FS
GRAPHIC_FS
10K SM
R50
+5V
+5V
GND
A0
A1
A2
VSS
VCC
NC
SCL
SDA
24C02C
U3
1
2
3
74HCT08
U2A
10K SM
R44
+5V
G
FP
Flame proof resister
Must only be replaced with same type and rating
Indicates safety critical component
Must only be replaced with approved type
1
2
3
74HCT08
U4A
1
2
3
4
5
6
HD2
HD6WLSJ
1
2
3
4
5
6
HD1
HD6WLSJ
+15V
G
TO 9421 HD3
TO 9422 HD13
PARA_SW
1
0
K
S
M
R14
+5V
1
0
K
S
M
R
1
2
+5V
GND
IN
OUT
U5
LM7805
C3
10U
C5
10U
G
G
G
+5V
+15V
D1
1N4007
1
4
7
74HCT08
U2E
1
4
7
74HCT08
U4E
+5V
+5V
G
G
PCB1
SUPPORT
PCB2
SUPPORT
Mech Items
