QSC ISA280 - ISA800 T Schematics; Bridge Mono

124 QSC Audio Products, LLC
TD-000163-00 Rev. B
Gray shading indicates
signal path
NOTES: UNLESS OTHERWISE SPECIFIED
A 2 SH–008001–00
REV
SH
DWG NO.
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATIONTHAT IS THE PROPERTY
OF QSC AUDIO PRODUCTS, WHICH MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
A
B
C
D
A
B
C
D
87 6543 21
87 6543 21
NOTES: UNLESS OTHERWISE SPECIFIED
PLOT DATE:
Wed Sep 05, 2001
SCALE:
NONE
SIZE
D
FSCM NO. DWG NO.
SHEET 2 OF 4
SH–008001–00
CAD FILE NO:
SH8001ra.sch
REV
A
FILTER BYPASS A (3)
FILTER 30 HZ (2)
CLIP LIM A (1)
J201
CH2_+IN
CH2_–IN
CHAS_GND
2
3
1
W1
SW1:3
SW1:2
SW1:1
SW1:4
SW1:5
SW1:6
SW1:7
SW1:8
SW1:9
SW1:10
PARALLEL
INPUTS
(4, 5)
BRIDGE
MONO
(6, 7)
FILTER BYPASS B (8)
FILTER 30 HZ (9)
CLIP LIM B (10)
J201
CH1_+IN
CH1_–IN
CHASSIS_GND
2
3
1
PC–007508–00, INPUT PCB
TO J421.
PIN TO PIN
SH 3
–IN A
+IN A
J400:1
J400:2
J400:3
J1:1
J1:2
J1:3
J203:1
J203:2
J203:3
1
2
3
1
2
3
GND
+IN A
–IN A
J1:4 J203:4
J1:5 J203:5
J1:6 J203:6
J1:7 J203:7
J1:8 J203:8
J1:9 J203:9
J1:10 J203:10
J1:11 J203:11
J1:12 J203:12
J1:13 J203:13
J1:14 J203:14
J1:15 J203:15
J1:16 J203:16
J1:17 J203:17
J1:18 J203:18
J1:19 J203:19
J1:20 J203:20
J1:21 J203:21
J1:22 J203:22
J1:23 J203:23
J1:24 J203:24
J1:25 J203:25
J1:26 J203:26
PC–007509–00,
TRIMPOT PCB
CONNECTS DIRECTLY
TO COMPONENTS W/
SAME REF DESG. ON
MAIN PCB, SH 2.
J426:5
J426:4
J426:3
J426:2
J426:1
100
2.2K
2.2K
5
4
3
2
1
_R131
_R139
_R140
CW CCW
CW CCW
CW CCW
W
W
W
1
2
3
TO J421.
PIN TO PIN
SH 3
GND
+IN B
J400:4
J400:6
J400:5
4
6
5
–IN B
CHANNEL 1
44
220p 5%
^C_1206
220p 5%
^C_1206
C4
C3
220p 5%
^C_1206
220p 5%
^C_1206
C1
C2
GND
100–1/4W
^R_1206
10–1/4W
^R_1206
R163
R164
POS STEP DRIVER
NEG STEP DRIVER
DC FAULT
PROTECTION
REF DWG OF
TERMINAL BLOCK
CONFIGURATION.
CH.1 OUTPUT
AUTOFORMER
(CHASSIS-MOUNTED)
DISTRIBUTED
OUTPUT
TERMINAL
BLOCK
DIRECT
OUTPUT
TERMINAL
BLOCK
ISA 800T
page 1 of 3
7.12 ISA800T Schematics