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Steelpark Road
www.laney.co.uk
Industrial Estate West
1
Coombs Wood
Halesowen, UK
B62 8HD
1
NXF/NXT Tube Preamp
9422
3
15/06/2007
R.S.T
9422.SchDoc
Title:
Size:
Number:
Date:
Original File:
Revision:
Sheet
of
Drawn:
A3
FP Flame proof resister
Must only be replaced with same type and rating
Indicates safety critical component
Must only be replaced with approved type
All capacitors to be 100V minimum rating unless stated otherwise
ALL CONNECTOR VIEWS LOOKING INTO PIN FACE
7
6
8
4
5
9
V1A
ECC83C
2
1
3
V1B
ECC83C
2K2 SM
R46
R28
100K 0.5W MF
R29
100K 0.5W MF
C22
22uF 450V
R27
10K 5W
1
2
1
HD5
HD2WL
1
2
1
HD6
G
G
G
G
G
G +12V
C23
100nF 400V
C29
10uF
+300V
1
2
1
HD2
HD2WL
G
C2
47nF
C3
47nF
TL072
U4A
2K2 SM
R1
2K2 SM
R2
TREBLE
VR8
22K CD
2K2 SM
R18
2K2 SM
R19
100pF SM
C5
4K7 SM
R10
10K SM
R16
C18
220nF
BASS
VR9
22K CD
-15V
+15V
G
TL072
U4B
C37
10uF Bi-Polar
100K SM
R65
G
10K SM
R74
10K SM
R70
10K SM
R82
10K SM
R83
C42
10uF Bi-Polar
100K SM
R78
V
R
1
8
A
1
0
0
K
C
D
LO MID FREQUENCY
V
R
1
8
B
1
0
0
K
C
D
C46
22nF
C49
33nF
LO MID LEVEL
VR22
22K CD
G
G
TL072
U13B
10K SM
R76
10K SM
R71
10K SM
R84
10K SM
R85
V
R
2
0
A
1
0
0
K
C
D
HI MID FREQUENCY
V
R
2
0
B
1
0
0
K
C
D
+15V
-15V
C48
3.3nF
C51
4.7nF
HI MID LEVEL
VR23
22K CD
G
G
G
RLY4A
G12V-2-H1
RLY4B
G12V-2-H1
RLY4C
G12V-2-H1
C1
NC1
NO1
PARAMID ON/OFF
SW2A
PARAMID ON/OFF
SW2C
2P2WPS-2NBX
-15V
3K3 SM
R64
G
RLY5A
G12V-2-H1
RLY5B
G12V-2-H1
RLY5C
G12V-2-H1
C1
NC1
NO1
GRAPHIC ENABLE
SW3A
GRAPHIC ENABLE
SW3C
-15V
3K3 SM
R63
G
TL072
U13A
TL072
U11B
TL072
U11A
10K SM
R66
3K3 SM
R67
12K SM
R68
BAS16
D9
BAS16
D10
C39
1
0
u
F
B
i-
P
o
la
r
47K SM
R69
100pF SM
C38
G
G
+15V
-15V
C40
47nF
150K SM
R72
C43
47nF
150K SM
R79
C41
100nF
220K SM
R73
220K SM
R80
C44
100nF
G
G
1
2
3
4
5
6
7
8
9
10
1
11
12
HD10
HD12WL
FXSEND
FXRETURN
PREAMPOUT
POSTEQDI
PREEQDI
PCB 9422 TUBE BOARD
TL072
U6B
10K SM
R36
10K SM
R31
BAS16
D4
BAS16
D3
1K SM
R30
VR11
10K
G
G
1
2
3
4
5
6
7
8
9
U7
LB1413
C35
10uF
10K SM
R52
C28
10uF
220R SM
R39
LED1A
LED1B
LED1C
LED1D
BAS16
D8
1K SM
R51
G
G
+15V
G
1
2
3
4
5
6
7
8
9
10
1
HD9
HD10WL
G
+15V
+12V
-15V
G
TO 9417 OUTPUT SOCKET PCB
1
2
3
4
5
6
HD11
HD6WL
TO 9420 PSU PCB
+15V
-15V
G
+12V
+300V
-15V
+15V
FEEDBACK
OUTPUTGND
PRESENCE
VR17
22K CD
1
2
1
HD12
HD2WL
TO 9418 TUBE PCB
C47
220nF 250V
1
2
3
4
5
6
HD13
HD6WL
TO 9419 FOOTSWITCH PCB HD2
+15V
G
G
G
D11
1N4007
D12
1N4007
+12V
+12V
C56
47uF
G
C74
100nF
C62
100nF
G
G
C73
47uF
C61
47uF
G
G
+15V
-15V
WITHIN DASHED AREA
+15V
-15V
TL072
U6A
+15V
-15V
1
2
1
HD14
1
2
3
4
5
6
HD15
HD6WL
PCB3
PCBMB
PCB4
PCBMB
Mech Items
1 2 3 4 5 6
HD100
HD6WL
G
-15V
+15V
0R0 SM
LN1
7
6
8
4
5
9
V2A
ECC83C
2
1
3
V2B
ECC83C
C2
NC2
NO2
SW2B
C2
NC2
NO2
SW3B
G
R6
100K 0.5W MF
+295V
+295V
R3
22K 1W
C1
22uF 450V
R15
100K 0.5W MF
100K SM
R12
100K SM
R8
C8
22nF 400V
1K SM
R11
1M SM
R7
2K2 SM
R14
1M SM
R13
G
G
G +12V
C7
100nF 400V
G
C10
22nF 400V
470K SM
R9
G
C9
100nF 400V
G
2K2 SM
R5
G
G
C4 10U 450V
220K SM
R4
1 2
1
H
D
1
1
2
1
HD3
G
G
IP DIST ADJ
VR1
100K
G
C6
10uF
TUNEROUT
10R SM
R17
G
G
1
2
1
HD4
G
VR1
100KA
1
2
1
HD1
1
2
1
HD2
MASTER VOLUME
G
PCB 9434
SUB HP FILTER
BZX84C10
ZD1
BZX84C10
ZD2
G
TL072
U1A
TL072
U1B
100K SM
R21
22K SM
R23
10K SM
R34
10K SM
R32
10K SM
R33
10K SM
R35
+15V
-15V
100K SM
R37
3K3 SM
R38
C13
22nF
C14
3.3nF
G
G
G
G
100K SM
R25
3K3 SM
R26
C11
33nF
C12
33nF
22K SM
R22
LN3
LN7
LN4
DEEP
PRESENCE
FX RETURN BUFFER
VU DRIVER
SIGNAL LEVEL VU
2K2 SM
R24
LN2
LN5
LN6
FET ONLY
TUBE ONLY
OPTIONAL
OPTIONAL
TL072
U16A
470R SM
R93
100nF
C57
330nF
C52
220K SM
R96
80Hz
10KBSL
VR1A
10KBSL
VR1B
330Hz
10KBSL
VR2A
VR2B
3KHz
10KBSL
VR3A
VR3B
40HZ
10KBSL
VR4A
10KBSL
VR4B
160Hz
10KBSL
VR5A
VR5B
750Hz
10KBSL
VR6A
VR6B
-15V
S
LI
D
E
R
L
E
D
'S
-15V
+15V
G
TL072
U16B
470R SM
R104
220nF
C70
330nF
C64
220K SM
R107
G
TL072
U17A
470R SM
R94
68K SM
R97
-15V
+15V
G
TL072
U17B
470R SM
R105
220K SM
R108
G
TL072
U18A
470R SM
R95
220K SM
R98
-15V
+15V
G
TL072
U18B
470R SM
R106
100K SM
R109
G
330nF
C63
100nF
C66
47nF
C65
47nF
C71
4.7nF
C72
100nF
C68
47nF
C67
330nF
C53
15nF
C58
33nF
C54
470pF SM
C59
TL072
U19B
330R SM
R100
330R SM
R101
10K SM
R99
10K SM
R102
C60
47pF SM
C69
100K SM
R103
G
TL072
U19A
330R SM
R90
330R SM
R91
10K SM
R88
10K SM
R92
47pF SM
C55
+15V
-15V
100K SM
R87
G
10K SM
R110
1 2 3 4 5 6
HD6WL
HD101
G
-15V
+15V
100nF
C100
100nF
C101
G
G
+15V
-15V
+15V
PCB 9421 INPUT BOARD
WITHIN DASHED AREA
PCB 9421 INPUT BOARD
WITHIN DASHED AREA
PCB 9423 TUBE BOARD
WITHIN DASHED AREA
RELAYS SHOWN UNERGISED
TUBE GAIN
VR10
100KA
PCB 9421 INPUT BOARD
WITHIN DASHED AREA
1 2
1
H
D
4
1
2
1
HD5
SK1
MJACK
10K SM
R5
TL072
U1B
TL072
U1A
TL072
U2A
TL072
U2B
TL072
U3B
22K SM
R11
22K SM
R22
10K SM
R20
1M SM
R8
100pF SM
C10
C17
10uF Bi-Polar
47pF SM
C15
C7
47nF
G
P1
BAS16
D2
BAS16
D1
+15V
-15V
C1
NC1
NO1
SW6A
2P2WPS-2LBX
G
G
-10dBu PAD
G
G
+15V
-15V
150K SM
R4
330K SM
R12
220K SM
R7
470K SM
R13
C12
47nF
C8
100nF
C14
100nF
C9
10uF Bi-Polar
G
G
+15V
-15V
4
K
7
S
M
R
6
FET GAIN
VR7
22KB
47pF SM
C4
G
C11
10uF Bi-Polar
100K SM
R14
22K SM
R9
RLY2B
G12V-2-H1
RLY2C
G12V-2-H1
G
G
22K SM
R15
+15V
-15V
G
22K SM
R3
47pF SM
C1
C13
22uF Bi-Polar
22K SM
R17
R
L
Y
1
A
G
1
2
V
-2
-H
1
RLY1B
G12V-2-H1
RLY1C
G12V-2-H1
R
L
Y
2
A
G
1
2
V
-2
-H
1
G
1
2
1
HD1
HD2WL
G
TUBE LEVEL
VR12
100KA
1
2
1
HD7
HD2WL
G
G
R
L
Y
3
A
G
1
2
V
-2
-H
1
RLY3B
G12V-2-H1
G
R
M
S
I
n
1
IT
(
IT
im
e
)
2
N
/A
3
R
M
S
O
u
t
4
C
T
(
C
T
im
e
)
5
O
A
2
-
In
6
O
A
2
O
u
t
7
O
A
2
+
In
8
G
N
D
9
V
E
E
1
0
V
C
C
1
1
O
A
3
O
u
t
1
2
V
C
A
O
u
t
1
3
S
Y
M
1
4
E
C
+
1
5
E
C
-
1
6
V
C
A
I
n
1
7
O
A
1
O
u
t
1
8
O
A
1
-
In
1
9
O
A
1
+
In
2
0
U5
THAT4301
BC847B
TS1
BC847B
TS2
BC857B
TS3
B
C
8
5
7
B
TS4
1M SM
R50
1M SM
R60
470K SM
R53
470K SM
R57
1M SM
R43
1M SM
R49
C32
10uF
5K6 SM
R41
12K SM
R44
12K SM
R48
12K SM
R61
820K SM
R54
820K SM
R58
Compression
VR15
100KA
G
G
G
+15V
-15V
22K SM
R26
33K SM
R25
C21
47uF
C20
47uF
56R SM
R23
22K SM
R24
47pF SM
C19
G
C16
22uF Bi-Polar
22K SM
R21
G
G
G
+15V
-15V
6K8 SM
R42
C30
100nF
G
O
P
E
R
A
TI
N
G
L
E
V
E
L
A
D
J
VR13
10K
820K SM
R55
+15V
-15V
+15V
-15V
G
G
3K3 SM
R56
C
1
N
C
1
N
O
1
S
W
1
A
SW1C
+15V
G
ON
C34
100nF
C27
100nF
G
G
C1
NC1
NO1
SW7A
2P2WPS-2LBX
PCB 9421 INPUT BOARD
G
1
2
3
4
5
6
7
8
9
10
1
HD8
HD10WL
G
+15V
+12V
-15V
PREEQDI
G
D
E
E
P
VR14
100KB
C36
10nF 400V
1
2
3
4
5
6
HD3
HD6WL
TO 9419 FOOTSWITCH PCB HD1
C
1
N
C
1
N
O
1
S
W
4
A
S
W
4
C
C
1
N
C
1
N
O
1
S
W
5
A
S
W
5
C
G
G
G
D
5
1
N
4
0
0
7
3
K
3
S
M
R
3
4
3
K
3
S
M
R
3
5
+12V
D
7
1
N
4
0
0
7
D
6
1
N
4
0
0
7
+12V
+12V
C
2
4
4
7
u
F
G
C33
47uF
C25
47uF
G
G
+15V
-15V
C6
100nF
C2
NC2
NO2
SW6B
C2
NC2
NO2
SW7B
TL072
U3A
PCB1
SUPPORT
PCB2
SUPPORT
1
2
3
4
5
6
HD2
HD6WL
RLY3C
G12V-2-H1
BRKT2
BR16BU
Mech Items
1
2
1
HD6
HD2WL
G
TUNEROUT
R10
10R 4W WW
C2
1
0
0
n
F
2
5
0
V
G
SW6C
3K3 SM
R18
-15V
G
PAD ACTIVE
2K2 SM
R2
R
L
Y
8
A
G
5
V
-2
-H
1
2
A
1
2
V
RLY8B
G5V-2-H1 2A 12V
22K SM
R30
SO642
TS6
SO642
TS5
10K SM
R27
G
G
D3
1N4007
+12V
+15V
MUTE FUNCTION
G
MUTE
C
O
M
P
R
E
S
S
O
R
FE
T
C
H
TU
B
E
C
H
BZX84C10
ZD2
BZX84C10
ZD1
G
R
1
N
O
T
F
IT
T
E
D
R1
47K SM
R19
100K SM
R16
G
uC LINES ACTIVE LOW
-15V
100K SM
R29
SUB BYPASS
SW7C
3K3 SM
R28
G
-15V
LN2
LN1
LN3
DEEPTOP-TUBE
DEEPBOT-TUBE
MUTEACTIVE
D
P
T
O
P
-F
D
P
B
O
T
-F
D
P
W
IP
-F
L
N
4
L
N
5
L
N
6
NXF ONLY
SUBSONIC HP FILTER
CH. MIX
COMPRESSOR
MUTE
MUTE LED
RLY8C
G5V-2-H1 2A 12V
1K SM
R31
G
CH. STATUS
22K SM
R32
+15V
2K2 SM
R33
NXT ONLY
Wire Link 120mm
W
ire
L
in
k
12
0m
m
Track Cut
Build Notes:
NXT Version:
Miss out 9422/LN2,LN5,LN6
Miss out 9421/LN4,LN5,LN6
Fit 9422 LN3,LN4,LN7
Fit 9421 LN1,LN2,LN3
ALL SWITCHES TO BE FITTED WITH BLUE LEDS
NXF Version:
Miss out 9422/LN3,LN4,LN7
Miss out 9421/LN1,LN2,LN3
Fit 9422/LN2,LN5,LN6
Fit 9421/LN4,LN5,LN6
ALL SWITCHES TO BE FITTED WITH RED LEDS
