Laney CP-12, CP-15 Schematic
CP12-15
Service InformationService Information
Laney
Classic British Amplification
Newlyn Road, Cradley Heath, West Midlands. B64 6B£
www.laney.co.uk
7654321
8
Line In
Link Out
D
Mic
C
B
Green/Yellow
A
NOTE:
Set VR5 to give 10mV across TP1 and TP2
Refer to service manual before adjusting bias preset
Flame proof resister
FP
Must only be replaced with same type and rating
Indicates safety critical component
Must only be replaced with approved type
SK1
MJACK
G
G
SK2
MJACK
G
SK4
XLR3F
12
3
G
R41
R40
100K
100K
G G
Mains In
IEC Inlet
Black(Brown)
White (Blue)
Chassis Transformer Primary
1 2 3 4 5 6 78
R39
100K
C23
10U 50V
C30
47U 50V
470P 250V
C24
C26
47U 50V
R21
1K
Q1
2N3819
Gmu
C13
100U 25V
Gmu
CP12 = 230V = T1A, 115V = T2A
CP15 = 230V =T2A, 115V = T5A
Fuse
R20
10K
G
G
R29
C21
3K3
10P 50V
D9
1N4148
TS8
MPSA42
Gmu
G5
R11
10K
+15V
TL072
-15V
R22
3K3
C17
10P 50V
C14
D13
3V9 ZD0.5W
D15
3V9 ZD0.5W
R28
1K
470P 250V
C22
R23
1K
Gmu
Mains Switch
Fuse Integral to IEC
AC Input (Neutral)
MAINS TRANSFORMER
U1A
2U2 63V
R9
33K
C18
G5
C9
1U 63V
Gmu
AC Line(Live)
R19
2K2
R25
10K
1N 100V
G5
These items not on pcb
+15V
-15V
TS6
MPSA92
R14
220R
D10
1N4148
D12
1N4148
R8
100R
TS5
MPSA92
R10
1K
TS11
MPSA92
LN12
G
C19
47U 50V
R30
470R
G
100P 100V
C31
47P 50V
TL072
+50V2
C10
Volume
VR2
100KA6S
U1B
TS7
MPSA92
LN8
R13
10K
R26
10K
G
R7
10K
TS10
MPSA42
SP4
SPADE4.8
SP1
SPADE4.8
SP5
SPADE4.8
LN7
LN13
R12
2K2
C4
2N2 100V
R2
470R
G
C32
1U 63V
C28
2N2 100V
R34
3K3
R37
4K7
R17
220R
TS9
MPSA92
D6
1N4148
TS3
MPSA42
TS4
MPSA92
D3
1N4148
220N 250V
Mid
Bass
100KB6S
2U2 63V
D1
1N4007D21N4007
C8
Treble
VR3
100KB6S
C33
100KB6S
C29
LN2
LN1
R31
8K2
15N 100V
VR4
R33
8K2
47N 100V
VR5
R36
22K
C7 100N 63V
C5
C6 100N 63V
C27
2N2 100V
R32
3K3
R35
4K7
R1
330R
R5
2K2
R4 2K2
R3 330R
BR1
6A 200V
D8 1N4148
D5 1N4148
+V
AC
AC
-V
C34
220P 250V
G
G4
G
+50V
-50V
R24
1M
TL072
G5
C12
4700U 63V
C25
4700U 63V
-15V
U2A
+15V
TestPoint1
Bias Adj
TestPoint2
LN9
0R0
C3
100N 63V
C1
100N 63V
+50V3
R6
220R
+50V2
R27
1K 5W
LN10
VR1
470RH
R18
1K 5W
PSU
TS2
SAP16N
TS1
SAP16P
G4
+50V
+50V3
D7
1N4007
D4
1N4007
-50V
C15
470U 16V
C20
470U 16V
R38
4K7
D16
Power LED
G
G4G4
G4
LED3MMR
G
BLT
Industries
External Loudspeaker
R15
10R 2W5
L1
COIL20T
C2
47N 100V
R16
10R 2W5
+V
To Internal Loudspeaker
+15V
D11
15V ZD1.3W
D14
15V ZD1.3W
C11
100N 63V
C16
100N 63V
-15V
Title
A3
Date: 15-Apr-2002 Sheet of
File: E:\PCB\Protel PCBS\9361_3-MANSION-ONLY-MidCapMissing-DOH.ddbDrawn By:
Link to chassis
LN3 LN4
CP12/CP15
Number RevisionSize
9361 3
XXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXX
G
SP3
SPADE4.8
-V
SP2
SPADE4.8
Chassis
SK3
MJACK
LN6 LN5
119361_3.Sch
LN11
0R0
G5
G4
Rich Thompson
LN14
Gmu
LN101
0R0
D
C
B
A
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