ALLEN & HEATH GL2800 Service Information

Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
+44 (0)8707 556251
3.1
GL2800 MASTER SUB PCB
C5874 1 1
PAGE:
TITLE:
DRG No: ISSUE: SHEET: OF
ISSUE BY DATE
FILE: C5874_3_1.Sch 13:45:27 29-Apr-2005
ALLEN&HEATH
Tel:
Fax:
PRINTED:
ABCDEFGH
a
b
c
d
e
CHK
BY
A MG 2/11/04
DG
+VB
-VB
TO MASTER LEFT PCB
5
4
6
SW1B
SW2PCOL (SPUN)
2
1
3
SW1A
SW2PCOL (SPUN)
LD1
LED RECT 5X2.5MM TOMB RED
+VB
C1
47/25
DG
+VB
AI1
HOLE-AI
AI2
SLOT-AI
C3
47/25
-VB
METER MOULDING
MTR1
LED BAR 4 TOMB_WZ3
C4
1/63
-VB
DG
+VB
-VB
R3
56K
R4
82K
R9
1K8
R5
6K8
R2
6K8
R10
1K2 1%
R11
1K0
R12
120R
R6
150K
R7
10K 1%
R8
68R
C2
100N 63V/PE
D1 1N4148
D2
1N4148
5 4
2
U2A
LM339
9 8
14
U2C
LM339
7 6
1
U2B
LM339
11 10
13
U2D
LM339
V-
12
V+
3
U2E
LM339
3
2
1
U1A
TL072
5
6
7
U1B
TL072
V-
4
V+
8
U1C
TL072
R1
4K7
Q1
BC556B
1
2
3
4
CN1
EARTH SCREW TERMINAL NARROW
1
2
3
4
5
6
7
8
9
10
11
12
CN2
FLEX SKT 12 WAY 90 DEG
R13
47K
FH1
HOLE-FIXING 3.2MM
FH2
HOLE-FIXING 3.2MM
1 MG 02/02/05
2 MG 18/02/05
3 MG 25/02/05
3.1 MG 22/04/05
003-356 iss.3.1

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