Laney HCM65R Schematic
87654321
MJACK
G
SK1
GG
D
C
Input
C1
4N7 100V
R1
10K
R10
1M
G G
+15V
C4
-15V
47P 50V
D10
1N4148
D11
1N4148
C8
G
+15v
TL072
-15V
R16
C38
270P 250V
2U2 63V
R14
4K7
0R0
C9
U1A
LN1
10N 100V
22K
FootSwitch
SK3
SJACK
Channel Select
G
LN13
0R0
B
To PCB 9353
Output PCB
R24
100K
CD4069UBE
R55
1 2
U5A
150K
Clean Channel
C10
3N3 50V
R39
3K3
C31
220N 63V
220N 63V
C30
C17
100N 63V
LN14
0R0
SW2A
2P2WPS
G
HD3
1 2 3 4 5 6
R54
R53
HD6WL
-15V
R36
4K7
D12
LED3MMR
Power
G
VDD
147
100N 63V
G
Treble
VR7
22KB6S
Bass
VR4
100KA6S
Mid
VR8
2K2B6S
G
SW2B
2P2WPS
G
15V ZD1.3W
560R 5W
560R 5W
15V ZD1.3W
-15V
C12
LN2
0R0
R9
10K
D8
Drive Channel
VR1A
100KA6SD
D1
G
1N4148
R29
100K
G
Drive On
G
G G
D9
G G
Q1
2N3819
G
TL072
R7
10K
G
R41
1K
D7
3V9 ZD0.5W
C36
47U 50V
C37
47U 50V
C13
10N 100V
R25
100K
R21
33K
G
C400
100N 63V
U1B
-15V
G
R35
D6
LED3MMG
R49
2K2
TS1
BC307
G
C401
100N 63V
47K
C18
100N 63V
-15V
R11
1M
U5B
3 4
CD4069UBE
VR5
100KA6S
G
R30
G
100K
+15V
C19
100N 63V
R50
470K
+15V
C14
100N 63V
VR1B
100KA6SD
G
C33
1N 100V
R300
1K
D300
5V1 ZD0.5W
G
-15V
TS2
BC307
G
R8
10K
5 6
R17
47K
C15
100N 63V
R31
100K
VDD
G
R12
1M
U5C
22N 100V
CD4069UBE
R32
220K
G
C300
470U 16V
C23
C21
100N 63V
R26
220K
Q3
2N3819
U5D
9 8
CD4069UBE
D4
1N4148
C5
47P 50V
R13
1M
1N4148
1N4148
LN12
0R0
R38
3K3
220N 63V
220N 63V
C32
C20
100N 63V
LN9
0R0
Send
Return
+15V
D2
D3
-15V
Treble
C11
3N3 50V
C29
FX Loop
G
G
Bass
100KA6S
VR9
Mid
G
VR6
22KB6S
VR2
2K2B6S
R58
4K7
SK4
MJACK
SK5
MJACK
+15V
TL072
-15V
R3
10K
SW1B
R2
10K
G
Max On/Off
U2A
R42
1K
R51
39K
G
2U2 63V
G
2P2WPS
G
R56
100K
R40
10K
+15V
TL072
-15V
C26
22N 100V
C39
R19
22K
R20
22K
R200
6K8
2P2WPS
SW1A
U3A
R37
100K
C34
270P 250V
R57
1K
C24100N 63V
R15
15K
R5
10K
Master Volume
Reverb Spring Line
R48
G
100R
SK2
Top
Tape/CD In
G
G
Bot
PHONOSTV
G G
4N7 100V
HD1
1 2
C25
TL072
R6
10K
1N 100V
HD2WL
R45
15K
U2B
C200
100KA6S
HD2
HD2WL
R18
22K
D
LN11
0R0
U3B
C6
47P 50V
R47
220K
-15V
U4A
R33
TL072
100K
+15V
G
C22
100N 63V
R44
1K
VR10
4K7B6S
R52
330K
G
C7
47P 50V
R28
100K
U4B
TL072
LN5
0R0
G
C
B
C16
47N 100V
LN15
VR3
1 2
Q2
2N3819
R46
LN10
0R0
220K
D5
G
1N4148
G
C3
4N7 100V
G
R43
1K
C35
1U 63V
TL072
R23
10K
C28
2N2 100V
R22
22K
G
G
Reverb Level
A
NOTE: All resistors to be 1/4W unless otherwise stated
A
NOTE: All capacitors to be rated at 16V or higher
Title
HCM65R Preamp
Number RevisionSize
A3
Date: 10-Apr-2002 Sheet of
1 2 3 4 5 6 7 8
File: E:\PCB\Protel PCBS\9351_4.Ddb Drawn By:
9351 4
1 19351_4.Sch
Rich Thompson
87654321
Note:
HCM65B, R4=47R, C3=2ยต2F
HCM65R, R4=2K2, C3=10nF
R4
2K2
C3
10N 100V
BS
G
U1
14
6
C9
100N 100V
G
+28V
C2
22UF 50V
-28V
G
D
+28V-28V
HD1
1 2 3 4 5 6
To Preamp PCB
HD6WL
C
C6
Gi
1U 63V
Gmu
R14
10K
C7
100U 25V
Gi
R12
47K
D1
1N4148
R11
C5
4K7
4U7 63V
Gi
R2
1K
R13
10K
R15
22K
R1
100R
Gi
LN8
0R0
C8
470P 250V
C1
47U 50V
Gi
Gi
2
3
4
9
10
1
R3
10K
7 13
+VI +VP
-IN
+IN
GIN
STBY
MUTE
MSGND
-VI -VP
OUT
TDA7294
C10
100N 100V
Fit on HCM65R Only
R6
47R
R8
0R47 5WFPC
G
R9
100K
470R 0.5W
HCM65B Only
G
R10
R17
10R 2W5
C11
100N 100V
R7
C4
47R
47N 100V
G
G
To Loudspeaker -V
External Loudspeaker
MJACK
To Loudspeaker +V
D
SK1
SJACK
HeadPhones
SP2
SPADE4.8
SK2
SP1
SPADE4.8
LN1
Fit on HCM65B Only
0R0
G
C
R5
1K
D2
1N4007
B
Mains In
IEC Inlet
Green/Yellow
Chassis
A
Flame proof resister
FP
Must only be replaced with same type and rating
Indicates safety critical component
Must only be replaced with approved type
h1
h2
h8
hs1
1 2 3 4 5 6 7 8
230V = F1A L
115V = T2A L
Brown
F1
FUSE
Fuse Integral to IEC
Blue
Mains Switch
AC Line(Live) (White)
Transformer Primary
AC Input (Neutral) (Black)
These items not on pcb
TX
(Red)
(Black)
(Red)
TRANS4
No:5600-003147
P7
PAD3
P8
PAD3
P9
PAD3
D3
1N5404
D4
1N5404
D5
1N5404
D6
1N5404
C13
3300U 50V
G
C14
3300U 50V
+28V
-28V
Link to chassis
LN2
LN3
LN4
0R0
0R0
0R0
Chassis
Title
BLT
Industries
Date: 10-Apr-2002 Sheet of
File: E:\PCB\Protel PCBS\9353_2.ddb Drawn By:
LN10
0R0
Gi
LN5
0R0
65W Output PCB
Number RevisionSize
A3
LN11
0R0
Gmu
9353 2
1 19353_2.sch
Rich Thompson
B
A
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