ALLEN & HEATH GL2800 Service Information

Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
+44 (0)8707 556251
4.1
GL2800 GROUP 1 & 3
C5864 1 3
PAGE:
TITLE:
DRG No: ISSUE: SHEET: OF
ISSUE BY DATE
FILE: C5864_4_1P1.Sch 11:42:39 29-Apr-2005
ALLEN&HEATH
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PRINTED:
ABCDEFGH
a
b
c
d
e
CHK
BY
R106
22R 0805
P1
RED
P2
GRN
P3
BLU
R1
47K 0805
2
1
3
SW8A
SW4PCOL (SPUN)
5
4
6
SW8B
SW4PCOL (SPUN)
11
10
12
SW8D
SW4PCOL (SPUN)
C8
220/10
R8
47K 0805
8
7
9
SW8C
SW4PCOL (SPUN)
1 3
2
VR6A
POT11 20KK
R53
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
R37
2K2 1% 0805
R83
4K7 1% 0805
C49
22P_S
INSEND_1 INSRET_1
5
6
7
U3B
NE5532 SMD
R38
2K2 1% 0805
R84
4K7 1% 0805
C50
22P_S
R111
33K 1% 0805
R3
47K 0805
-VA
R104
68R 0805
R105
68R 0805
+VAC55
100N 0805
C56
100N 0805
AUX_OUT1+
AUX_OUT1-
R102
10R PF RAD
R103
10R PF RAD
C7
47/25
R2
47K 0805
2
1
3
SW7A
SW2PCOL (SPUN)
5
4
6
SW7B
SW2PCOL (SPUN)
R97
18K 1% 0805
+VB
R95
3K3 1% 0805
LD3
LED T1 3MM YELLOW
D1
BAS16
PFL_DET
PFL/AFL
R55
10K 1% 0805
R54
10K 1% 0805
R57
10K 1% 0805
R39
2K2 1% 0805
R40
2K2 1% 0805
R112
47R 0805
R113
47R 0805
3
2
1
U4A
TL072D SMD
5
6
7
U4B
TL072D SMD
C51 22P_S
C52 22P_S
C53 22P_S
GROUP_OUT1+
GROUP_OUT1-
R85
4K7 1% 0805
R86
4K7 1% 0805
R87
4K7 1% 0805
R88
4K7 1% 0805
C12
47/25
C59
100/25
C60
100/25
R6
47K 0805
R7
47K 0805
16
4
VR7A
POT14 10KAC C/D
2 5
3
VR7B
POT14 10KAC C/D
R58
10K 1% 0805
R60
10K 1% 0805
C13
220/10
R4
47K 0805
2
1
3
SW12A
SW2PCOL (SPUN)
5
4
6
SW12B
SW2PCOL (SPUN)
R98
18K 1% 0805
+VB
R96
3K3 1% 0805
LD5
LED T1 3MM YELLOW
D2
BAS16
PFL_DET
PFL/AFL
MIXR
MIXL
FLIP_SUBMIX
FLIP_SUBMIX
2
1
3
SW11A
SW2PCOL (SPUN)
5
4
6
SW11B
SW2PCOL (SPUN)
C14
47/25
R5
47K 0805
FADER
+VA
-VA
LD4
LED RECT 5X2.5MM TOMB RED
5
4
6
SW10B
SW2PCOL (SPUN)
2
1
3
SW10A
SW2PCOL (SPUN)
AUX1
AUX3
GRP1
GRP3
POST_GRPn
C57
100N 0805
C58
100N 0805
MUTE FADER
AFL FADER
AFL ROTARY
JS1
SOLDER ASSIG
JS2
SOLDER ASSIG
JS3
SOLDER ASSIG
JS4
SOLDER ASSIG
METER
R101
100K 1% 0805
R100
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 3 FOR FITTING INSTRUCTION
TO_LD4
TO_LD4
R114
10R PF RAD
R116
10R PF RAD
C16
47/25
C17
47/25
C61
100N/50V 0805
C62
100N/50V 0805
R115
10R PF RAD
R117
10R PF RAD
C18
47/25
C19
47/25
C63
100N/50V 0805
C64
100N/50V 0805
DG
+VA
-VA -VB
+VB
1
2
3
4
CN2
EARTH SCREW TERMINAL NARROW
R59
10K 1% 0805
2
1
3
SW9A
SW2PCOL (SPUN)
5
4
6
SW9B
SW2PCOL (SPUN)
MONO
5 6
BRKT
VR6B
POT11 20KK
8 9
BRKT
VR7C
POT14 10KAC C/D
POT_GND
GROUP_OUT1-GROUP_OUT1+
AUX_OUT1+ AUX_OUT1- INSEND_1 INSRET_1
R56
10K 1% 0805
C54 22P_S
5
6
7
U1B
NE5532 SMD
R27
8K2 0.5% 0805 TF
C35
33P 0805
3
2
1
U2A
TL072D SMD
R28
10K 1% 0805
R35
15K 1% 0805
C36
33P 0805
C1
1000/6.3
Q3
2SB737
R21
22K 0.5% 0805 TF
-VC
R23
10K 0.5% 0805 TF
R24
10K 0.5% 0805 TF
C4
47/25
R17
330K 1% 0805
Q1
BC856A
R107
0R0 0805
R109
NF RES SMD0805
GC
R19
47K 0.5% 0805 TF
C5
47/25
BIAS_A
BIAS_A
-VS
C6
47/25
-VC
C3
47/25
3
2
1
U1A
NE5532 SMD
R29
15K 0.5% 0805 TF
C37
33P 0805
5
6
7
U2B
TL072D SMD
R30
4K7 1% 0805
R36
5K6 0805
C38
33P 0805
C2
1000/6.3
Q4
2SB737
R22
22K 0.5% 0805 TF
-VC
R25
10K 0.5% 0805 TF
R26
10K 0.5% 0805 TF
C15
47/25
R18
330K 1% 0805
Q2
BC856A
R108
NF RES SMD0805
R110
0R0 0805
GC
R20
47K 0.5% 0805 TF
C10
47/25
BIAS_B
BIAS_B
C9
47/25
C11
47/25
A MG 20-07-04 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
GROUP_OUT2-GROUP_OUT2+
AUX_OUT2+ AUX_OUT2- INSEND_2 INSRET_2
GRP_1_3_SUM
TO REAR CONNECTOR PCB
SYS_AUX_1_3
SYS_GRP_1_3
20
20
1
1
19
19
2
2
18
18
3
3
17
17
4
4
16
16
5
5
15
15
6
6
14
14
7
7
13
13
8
8
12
12
9
9
11
11
10
10
CN1
BOX 10X2 M 90 DEG
ST1(3)_IN_L+ST1(3)_IN_R+
ST2(4)_IN_L+ ST2(4)_IN_L-
ST2(4)_IN_R-ST2(4)_IN_R+
Vin
2
GND
1
-12V
3
U6
MC79M12BDT SMD
-VS
R136
0R0 0805
1 MG 25-01-04 XXX
TIE1
HOLE-FIXING 3.2MM
2 MG 14/02/05 XXX
3 MG 24/02/05 XXX
4 MG 24/03/05 XXX
4.1 MG 19/04/05 XXX
003-354 iss.4.1

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