CP12-15

Service Information

Laney
Classic British Amplification
Newlyn Road, Cradley Heath, West Midlands. B64 6B£
www.laney.co.uk
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Line In SK1 Treble

MJACK
VR3
C23 C28 100KB6S C27
R20
10K
Volume
G R39 10U 50V 2N2 100V 2N2 100V
VR2 R31 C34 R24
100K
100KA6S 8K2 1M
220P 250V -15V
Link Out +15V C31
G U2A
D SK2 D
MJACK G D10 C33 TL072
G 47P 50V 15N 100V
1N4148
LN12
R29 C32
C21 U1B R34 100KB6S R32 +15V
3K3
G SK4 10P 50V TL072 G5
D12 LN13 3K3 VR4 3K3
XLR3F 1U 63V
Mic C30 +15V 1N4148 Mid R33
1 2 47U 50V R28 8K2
3 U1A -15V G
1K R19
470P 250V 470P 250V TL072
2K2
C24 C22 R23 C29
G Bass 47N 100V
C26 47U 50V 1K -15V
R22 R37 R35
R41 R40
3K3 4K7 100KB6S VR5 4K7
100K 100K C17 R36
22K
GG 10P 50V

+50V2 +50V

R8
100R R10 R17 +50V3
TS7
C MPSA92 220R C
1K TS2
SAP16N
TS5 R12
LN8 TS9
MPSA92
External Loudspeaker
2K2 C7 100N 63V D7
MPSA92 R13 SK3
1N4007
10K MJACK
D6 TestPoint1
R26 1N4148 R1
10K TS3 330R
R15
R5 D8 1N4148
MPSA42 10R 2W5
TS11 G G
C14 2K2
R21 2U2 63V TS6 MPSA92 R7 L1
MPSA92 COIL20T G
1K 10K

2U2 63V
C18 C19
D13 R25 47U 50V C5
R6 SP3
1N 100V

3V9 ZD0.5W 10K G4 C2

R30 TS4 R4 2K2 D5 1N4148 220R SPADE4.8
D15 VR1 47N 100V
G5 470R -V
Q1 3V9 ZD0.5W
G5
Bias Adj 470RH
R16
C4 R3 330R
2N3819 MPSA92 10R 2W5 SP2
G5 SPADE4.8
G D3
Gmu 2N2 100V 1N4148 TestPoint2 TS1 +V
D9
C10 R2 SAP16P G To Internal Loudspeaker
100P 100V 470R C6 100N 63V
1N4148 D4
TS8 TS10 1N4007
C13 R9 MPSA42
B 100U 25V B
R14
33K 220R
Gmu MPSA42 R11 C9
10K 1U 63V LN7
Gmu
Gmu -50V
Gmu

LN2 +50V2

LN1 +50V3 LN10 PSU

+50V +15V
CP12 = 230V = T1A, 115V = T2A LN9 R18
Mains In CP15 = 230V =T2A, 115V = T5A These items not on pcb 0R0 1K 5W C11
Link to chassis
SP4 C12 D11
IEC Inlet Mains Switch AC Line(Live) C3 C15 100N 63V
Fuse D1 D2 BR1 4700U 63V 100N 63V 470U 16V 15V ZD1.3W
Black(Brown) 1N4007 1N4007
Green/Yellow SPADE4.8 +V
SP1 AC G4 G4
Fuse Integral to IEC C8
SPADE4.8 AC G4
AC Input (Neutral) SP5 G 220N 250V -V G G4
White (Blue) C25 C1
Chassis Transformer Primary 6A 200V LN14
MAINS TRANSFORMER 100N 63V C20 D14
SPADE4.8 4700U 63V 15V ZD1.3W LN3 LN4 LN6 LN5
R27 470U 16V C16 LN11
100N 63V 0R0 LN101
1K 5W R38 0R0
-50V 4K7
D16 LED3MMR
A -15V G4 G5 A
Chassis Gmu
NOTE: G
Set VR5 to give 10mV across TP1 and TP2 Power LED
Refer to service manual before adjusting bias preset Title
CP12/CP15
BLT
Flame proof resister
FP Must only be replaced with same type and rating
Size Number Revision
Indicates safety critical component Industries A3 9361 3
Must only be replaced with approved type
Date: 15-Apr-20029361_3.Sch Sheet 1 of 1
File: XXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXX
E:\PCB\Protel Rich Thompson
PCBS\9361_3-MANSION-ONLY-MidCapMissing-DOH.ddb
XXXXXXXXXXXXXXXXXXX Drawn By:
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 1 2 3 4 5 6 7 8

Line In SK1 Treble

MJACK
100KB
C23 C28 VR3 C27
R20
10K
Volume
G R39 10uF 2.2nF 2.2nF
VR2 R31 C34 R24
100K
100KA 8K2 1M
220pF -15V
Link Out +15V C31
G U2A
A SK2 A
MJACK G D10 C33 TL072
G 47pF
1N4148 15nF
LN12
R29 0R0 C32
C21 U1B R34 VR4 R32 +15V
3K3
G 10pF TL072 G5
D12 0R0 3K3 100KB 3K3
SK4 C22 1N4148 LN13 1uF Mid C35
Mic C30 +15V U1A
1 2 XLR3F 470pF R28 15nF
3 TL072 C36 -15V G
1K R19 R33
47uF
C26 2K2 8K2
R23 10uF C29
G Bass 47nF
1K -15V
C24 R22 R37 R35
47uF
470pF
R41 3K3 4K7 4K7
R40
100K C17 VR5 R36
100K
100KB 22K
GG 10pF

+50V2 +50V

R8
100R R10 R17 +50V3
TS7
B MPSA92 220R B
1K TS2
TS5 SAP16N
MPSA92 LN8 R12 TS9
MPSA92
External Loudspeaker
0R0 2K2 C7
D7 SK3
R13 1N4007
10K MJACK
D6 100nF
R26 1N4148 TS3 TestPoint1
10K MPSA42 R1
R15
330R D8 1N4148
G G 10R 2W5
C14 TS11
R21 TS6 MPSA92 R7 R5 2K2 L1
MPSA92 COIL20T G
1K 10K 2.2uF
2.2uF C19
D13 C18 R25 47uF C5 R4 D5 R6
3V9 0.5W 1nF 10K
TS4 G4 220R
C2
SP3
-V
D15 R30 2K2 1N4148 VR1 47nF
G5 MPSA92 SPADE4.8
Q1 3V9 0.5W G5
470R Bias Adj 470R
R16
C4 330R
2N3819 R3 10R 2W5
G5 SP2
G D3 TestPoint2
Gmu 2.2nF 1N4148 TS1 SPADE4.8 +V
C10 R2 C6 SAP16P G
D9 To Internal Loudspeaker
100pF 470R 100nF
1N4148 D4
TS8 TS10 1N4007
C13 R9 MPSA42
C 100uF MPSA42 C
33K R14
Gmu C9 220R
R11
1uF LN7
10K
Gmu 0R0
Gmu -50V
Gmu

LN2 +50V2
0R0
LN1 +50V3 LN10 PSU
0R0 0R0
+50V +15V
CP12 = 230V = T1A, 115V = T2A LN9 R18
Mains In CP15 = 230V =T2A, 115V = T5A These items not on pcb 0R0 1K 5W C11
Link to chassis
SP4 C12 D11
IEC Inlet Mains Switch AC Line(Live) D1 D2 C3 C15 100nF
Fuse
Black(Brown) 1N4007 1N4007 BR1 4700uF 100nF 470uF 15V 1.3W
Green/Yellow SPADE4.8 +V
SP1 AC G4 G4
Fuse Integral to IEC C8
SPADE4.8 AC G4
AC Input (Neutral) SP5 G 220nF -V G G4
White (Blue) C25 C1
Chassis Transformer Primary 6A 200V LN14
MAINS TRANSFORMER 100nF C20 D14
SPADE4.8 4700uF 15V 1.3W LN3 LN4 LN6 LN5 0R0
R27 470uF C16 LN11
0R0 0R0 0R0 0R0
100nF 0R0
1K 5W R38 LN101
-50V 4K7 0R0
D16
D -15V G4 G5 D
Chassis Gmu
NOTE: G
LEDR
Set VR5 to give 10mV across TP1 and TP2 Power LED
Refer to service manual before adjusting bias preset Title
CP12/CP15
BLT
Flame proof resister 50MMFINNEDHS
FP Must only be replaced with same type and rating 50MMFINNEDHS
Size Number Revision
Indi cates safety critical component Industries A3 9361 4
Must only be replaced with approved type
Date: 21/04/2004 9361_4.Sch Sheet 1 of 1
File: D:\Work-in-Progress\9361_4\9361_4.Sch Drawn By: Rich Thompson
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