Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
+44 (0)8707 556251
4
GL2800 GROUP 2 & 4
C5865 1 2
PAGE:
TITLE:
DRG No: ISSUE: SHEET: OF
ISSUE BY DATE
FILE: C5865_4P1.Sch 10:21:18 3-May-2005
ALLEN&HEATH
Tel:
Fax:
PRINTED:
ABCDEFGH
a
b
c
d
e
CHK
BY
R55
22R 0805
P1
RED
P2
GRN
P3
BLU
R1
47K 0805
2
1
3
SW2A
SW4PCOL (SPUN)
5
4
6
SW2B
SW4PCOL (SPUN)
11
10
12
SW2D
SW4PCOL (SPUN)
C7
220/10
R8
47K 0805
8
7
9
SW2C
SW4PCOL (SPUN)
1 3
2
VR1A
POT11 20KK
R29
10K 1% 0805
3
2
1
U3A
NE5532 SMD
V-
4
V+
8
U3C
NE5532 SMD
V-
4
V+
8
U1C
NE5532 SMD
V-
4
V+
8
U2C
TL072D SMD
V-
4
V+
8
U4C
TL072D SMD
R25
2K2 1% 0805
R38
4K7 1% 0805
C25
22P_S
INSEND_2
INSRET_2
5
6
7
U3B
NE5532 SMD
R26
2K2 1% 0805
R39
4K7 1% 0805
C26
22P_S
R60
33K 1% 0805
R3
47K 0805
-VA
R53
68R 0805
R54
68R 0805
+VAC31
100N 0805
C32
100N 0805
AUX_OUT2+
AUX_OUT2-
R51
10R PF RAD
R52
10R PF RAD
C6
47/25
R2
47K 0805
2
1
3
SW1A
SW2PCOL (SPUN)
5
4
6
SW1B
SW2PCOL (SPUN)
R47
18K 1% 0805
+VB
R45
4K7 1% 0805
LD1
LED T1 3MM YELLOW
D1
BAS16
PFL_DET
PFL/AFL
R31
10K 1% 0805
R30
10K 1% 0805
R33
10K 1% 0805
R27
2K2 1% 0805
R28
2K2 1% 0805
R61
47R 0805
R62
47R 0805
3
2
1
U4A
TL072D SMD
5
6
7
U4B
TL072D SMD
C27 22P_S
C28 22P_S
C29 22P_S
GROUP_OUT2+
GROUP_OUT2-
R40
4K7 1% 0805
R41
4K7 1% 0805
R42
4K7 1% 0805
R43
4K7 1% 0805
C12
47/25
C35
100/25
C36
100/25
R6
47K 0805
R7
47K 0805
16
4
VR2A
POT14 10KAC C/D
2 5
3
VR2B
POT14 10KAC C/D
R34
10K 1% 0805
R36
10K 1% 0805
C13
220/10
R4
47K 0805
2
1
3
SW6A
SW2PCOL (SPUN)
5
4
6
SW6B
SW2PCOL (SPUN)
R48
18K 1% 0805
+VB
R46
4K7 1% 0805
LD3
LED T1 3MM YELLOW
D2
BAS16
PFL_DET
PFL/AFL
MIXR
MIXL
FLIP_SUBMIX
FLIP_SUBMIX
2
1
3
SW5A
SW2PCOL (SPUN)
5
4
6
SW5B
SW2PCOL (SPUN)
C14
47/25
R5
47K 0805
FADER
+VA
-VA
LD2
LED RECT 5X2.5MM TOMB RED
5
4
6
SW4B
SW2PCOL (SPUN)
2
1
3
SW4A
SW2PCOL (SPUN)
POST_GRP2
C33
100N 0805
C34
100N 0805
MUTE FADER
AFL FADER
AFL ROTARY
JS1
SOLDER ASSIG
JS2
SOLDER ASSIG
JS3
SOLDER ASSIG
JS4
SOLDER ASSIG
METER
R50
100K 1% 0805
R49
100K 1% 0805
VIN
4
GND
3
FORCE+
8
FORCE-
1
SENSE+
7
SENSE-
2
V+
6
V-
5
U5
BALANCED OUTPUT DRIVER (SOCKET FITTED AL0013)
BALANCED OUTPUT DEVICE. SEE PAGE 2 FOR FITTING INSTRUCTION
TO_LD4
TO_LD4
R63
10R PF RAD
R65
10R PF RAD
C16
47/25
C17
47/25
C37
100N/50V 0805
C38
100N/50V 0805
R64
10R PF RAD
R66
10R PF RAD
C18
47/25
C19
47/25
C39
100N/50V 0805
C40
100N/50V 0805
DG
+VA
-VA -VB
+VB
1
2
3
4
CN2
EARTH SCREW TERMINAL NARROW
R35
10K 1% 0805
2
1
3
SW3A
SW2PCOL (SPUN)
5
4
6
SW3B
SW2PCOL (SPUN)
MONO
5
6
BRKT
VR1B
POT11 20KK
8
9
BRKT
VR2C
POT14 10KAC C/D
POT_GND
R32
10K 1% 0805
C30 22P_S
3
2
1
U1A
NE5532 SMD
R19
8K2 0.5% 0805 TF
C21
33P 0805
3
2
1
U2A
TL072D SMD
R20
10K 1% 0805
R23
15K 1% 0805
C22
33P 0805
C1
1000/6.3
R13
22K 0.5% 0805 TF
-VC
R15
10K 0.5% 0805 TF
R16
10K 0.5% 0805 TF
C9
47/25
R9
330K 1% 0805
Q1
BC856A
R56
0R0 0805
R58
NF RES SMD0805
GC
R11
47K 0.5% 0805 TF
C4
47/25
BIAS_A
BIAS_A
-VS
C5
47/25
-VC
Vin
2
GND
1
-12V
3
U6
MC79M12BDT SMD
C3
47/25
5
6
7
U1B
NE5532 SMD
R21
15K 0.5% 0805 TF
C23
33P 0805
5
6
7
U2B
TL072D SMD
R22
4K7 1% 0805
R24
5K6 0805
C24
33P 0805
C2
1000/6.3
R14
22K 0.5% 0805 TF
-VC
R17
10K 0.5% 0805 TF
R18
10K 0.5% 0805 TF
C15
47/25
R10
330K 1% 0805
Q2
BC856A
R57
NF RES SMD0805
R59
0R0 0805
GC
R12
47K 0.5% 0805 TF
C10
47/25
BIAS_B
BIAS_B
C8
47/25
C11
47/25
A MG 12-10-04 XXX
M1M2
M3M4
GRP1GRP2
GRP3GRP4
GRP5GRP6
GRP7GRP8
MONO GC
AUX1AUX2
AUX3AUX4
AUX5AUX6
AUX7AUX8
+48V
PFL/AFL PFL_DET
+48V
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
CN3
BOX 20X2 M 90 DEG
MIXLMIXR
AUX9AUX10
GRP_2_4_SUM
SYS_AUX_2_4
SYS_GRP_2_4
GRP2
GRP4
AUX2
AUX4
TO GROUP 1 & 3 SUB PCB
Q4
2SB737
Q3
2SB737
-VS
ATE1
HOLE-ATE
ATE2
HOLE-ATE
R76
0R0 0805
GRP_2_4_SUM
POST_GRP2
GROUP_OUT2-
GROUP_OUT2+
AUX_OUT2+
AUX_OUT2-
INSEND_2
INSRET_2
SYS_AUX_2_4
SYS_GRP_2_4
1
2
3
4
5
6
7
8
9
10
11
12
CN6
FLEX SKT 12 WAY 90 DEG
1 MG 26/01/05 XXX
R77
22K 1% 0805
2 MG 14/02/05 XXX
3 MG 24/03/05 XXX
METER
3.1 MG 19/04/05 XXX
4 MG 29/04/05 XXX
003-355 iss.4
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