ALLEN & HEATH GL2800 Service Information

Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
+44 (0)8707 556251
1
GL2800 STEREO INPUT
C5863 1 3
PAGE:
TITLE:
DRG No: ISSUE: SHEET: OF
ISSUE BY DATE
FILE: C5863_1P1.Sch 11:06:07 29-Apr-2005
ALLEN&HEATH
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8
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9
10
10
CN1
BOX 5X2 M 90 DEG
TO CONNECTOR PCB
MIC-MIC+ MIC_OUT+
2
1
3
SW3A
SW2PCOL (SPUN)
5
4
6
SW3B
SW2PCOL (SPUN)
C3
47/25
C4
47/25
R4
8K2 1% 0805
R3 8K2 1% 0805
R22
47K 0805
R23
47K 0805
+48V
5
4
6
SW1B
SW2PCOL (SPUN)
R21
470R 0805
R16
22R 1206
R1522R 1206
5
4
6
SW2B
SW2PCOL (SPUN)
2
1
3
SW2A
SW2PCOL (SPUN)
R24
47K 0805
R25
47K 0805
-VA
-VA
D1
LL4148
D2
LL4148
C29
330P/DISK
C30
330P/DISK
C26
1N/MYL
R42
4K7 1% 0805
R17
3K3 1% 0805
MIC_OUT+
R81
10K 1% 0805
R82
10K 1% 0805
5
6
7
U4B
TL072D SMD
R83
10K 1% 0805
R86
10K 1% 0805
C36
33P 0805
C38
33P 0805
C7
47/25
C8
47/25
1 6
4
VR2A
POT14 20KK X2
2 5
3
VR2B
POT14 20KK X2
R84
10K 1% 0805
R85
10K 1% 0805
5
6
7
U3B
TL072D SMD
R87
10K 1% 0805
R88
10K 1% 0805
C37
33P 0805
C39
33P 0805
C11
47/25
C12
47/25
3
2
1
U4A
TL072D SMD
3
2
1
U3A
TL072D SMD
R106
22K 0805
C13
47/25
C14
47/25
R31
47K 0805
R32
47K 0805
C10
47/25
C16
47/25
C9
47/25
C15
47/25
R28
47K 0805
R29
47K 0805
R33
47K 0805
R34
47K 0805
R35
47K 0805
R30
47K 0805
R115
100K 1% 0805
R116
100K 1% 0805
R118
100K 1% 0805
R113
100K 1% 0805
R111
100K 1% 0805
R110
100K 1% 0805
R109
100K 1% 0805
R114
100K 1% 0805
R134
2K2 1% 0805
R135
2K2 1% 0805
R137
2K2 1% 0805
R136
2K2 1% 0805
R112
100K 1% 0805
R117
100K 1% 0805
R5
8K2 1% 0805
R6
8K2 1% 0805
R131
27K 1% 0805
R130
27K 1% 0805
R128
27K 1% 0805
R126
27K 1% 0805
R127
27K 1% 0805
R129
27K 1% 0805
R132
27K 1% 0805
R133
27K 1% 0805
C57
2N2/MYL
C58
2N2/MYL
C60
2N2/MYL
C59
2N2/MYL
C51
22N/MYL
C52
22N/MYL
C53
22N/MYL
C54
22N/MYL
C27
1N/MYL
C28
1N/MYL
C49
22P_S
C50
22P_S
C56
330N 50V/PE
C55
330N 50V/PE
R141
6K8 1% 0805
R140
6K8 1% 0805
POST_EQ_R
POST_EQ_L
16
4
VR3A
POT14 20KB X2 C/D
2 5
3
VR5B
POT14 20KB X2 C/D
16
4
VR6A
POT14 20KB X2 C/D
1 6
4
VR4A
POT14 20KB X2 C/D
25
3
VR3B
POT14 20KB X2 C/D
25
3
VR6B
POT14 20KB X2 C/D
2 5
3
VR4B
POT14 20KB X2 C/D
1 6
4
VR5A
POT14 20KB X2 C/D
5
6
7
U5B
TL072D SMD
3
2
1
U5A
TL072D SMD
5
6
7
U6B
TL072D SMD
3
2
1
U6A
TL072D SMD
2
1
3
SW5A
SW2PCOL (SPUN)
5
4
6
SW5B
SW2PCOL (SPUN)
R1
6K8 1% 0805 MELF
R2
6K8 1% 0805 MELF
C1
47/63
C2
47/63
MIC-
MIC+
ST_L+
ST_L-
ST_R-
ST_R+
ST_R+ ST_R-
ST_L-ST_L+
2
1
3
SW1A
SW2PCOL (SPUN)
5 6
BRKT
VR1B
POT11 10KZ
8 9
BRKT
VR2C
POT14 20KK X2
8 9
BRKT
VR3C
POT14 20KB X2 C/D
8 9
BRKT
VR4C
POT14 20KB X2 C/D
8 9
BRKT
VR5C
POT14 20KB X2 C/D
8 9
BRKT
VR6C
POT14 20KB X2 C/D
POT_GND
R142
1K0 1% 0805
V-
4
V+
8
U1C
NE5532 SMD
V-
4
V+
8
U2C
TL072D SMD
V-
4
V+
8
U3C
TL072D SMD
V-
4
V+
8
U4C
TL072D SMD
V-
4
V+
8
U5C
TL072D SMD
V-
4
V+
8
U6C
TL072D SMD
+VA
-VA
R18
3K3 1% 0805
3
2
1
U2A
TL072D SMD
R107
22K 0805
R19
3K3 1% 0805
R43
4K7 1% 0805
R44
4K7 1% 0805
C46
15P 0805
C47
15P 0805
C48
15P 0805
0dBu NOMINAL
0dBu NOMINAL
R78
22K 1% 0805
R79
22K 1% 0805
MONO IN NORMALLISED
A MG 20-07-04
R65
4K7 0.5% 0805 TF
R66
4K7 0.5% 0805 TF
R104
1K2 0.5% 0805 TF
R105
1K2 0.5% 0805 TF
13
2
VR1A
POT11 10KZ
C31
1000/6.3
+VA
-VA
3
2
1
U1A
NE5532 SMD
5
6
7
U1B
NE5532 SMD
R68
4K7 0.5% 0805 TF
R67
4K7 0.5% 0805 TF
C34 33P 0805
C33
33P 0805
R77
22K 1% 0805
R80
10K 1% 0805
C44
47N/MYL
C45
47N/MYL
C35 33P 0805
R73
1K2 1% 0805
R75
2K7 0805
R27
47K 0805
R26
47K 0805
2
1 3
SW4A
SW2PCOL (SPUN)
5
4 6
SW4B
SW2PCOL (SPUN)
R69
820R 0.5% 0805 TF
R70
820R 0.5% 0805 TF
Q1
2SB737
Q2
2SB737
C5
47/25
5
6
7
U2B
TL072D SMD
Q3
BC549
Q4
BC549
R72
10R 0805
R71
10R 0805
C6
47/25
1 MG 21/01/05
003-353 iss.1

ALLEN & HEATH GL2800 Specifications

General

Direct Outputs	Yes, on mono channels
Effects	None built-in
Type	Analog
Channels	24, 32, or 40
Stereo Channels	4
EQ	4-band EQ
Phantom Power	+48V globally switchable
Dimensions	Varies by model
Weight	Varies by model
Inputs	Mic/Line inputs on mono channels, stereo line inputs on stereo channels
Outputs	Main L/R, Groups, Matrix, Aux
Faders	100mm
Auxiliary Sends	10 aux sends
Groups	8 groups
Power Supply	Internal power supply with external backup option