QSC EX1600
Circuit Diagrams

4
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS , THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS.

3

2

1
REVISIONS
ZONE REV DESCRIPTION DATE APPROVED

A B

PROD REL PER ECO 756 CHANGE VALUE R31, WAS 21 K
SEE ECO 1097 6-10-91 SGM

C

REVISED FOR MIN-SLOT, BR-SW
SEE ECO 1297 BY PHQ L G.

1-24-92

SGM

D

D

REVISE PER ECO 1916

D

SCHEMATIC, EX-SERIES STANDARD INPUT BOARD.
FOR PC-004005-00 REV B 7-15-93 W 301 C 302 470 p J 301 XLR
2 1 3

PADS FOR LEVEL 1-A OR 2-A ACCESSORY PCB
PIN 1 V+A

J 32
11

+15 V REG CH 1 SPKR SIG GND GND +INPUT CH 1

PIN 2 SP-A 16 PIN 3 GND 4

C 301 470 p T 301
1 (1) 4 (5) 6 (8)

R 301
(6, 7)

PIN 4 +1N A

A

6

W 304 W 303

A C 303

W 305
PIN 5 +OUT A PIN 6 -IN A

1

3 (4)

2

-INPUT CH 1

A J 31 CH 1 +IN

SHIPPED XLR PIN 2 HI MOVE W 303, 304 TO ALT POSITION FOR PIN 3 HI

W 302 R 31 20.0 K

W 306 NC

PIN 7 -OUT A PIN 8 GND PIN 9 CLIP 22 PIN 10 V-A

J 33 CH 1 -IN GND R 32 24K

CH 1 CLIP-LIM -15 V REG -24 V +24 V CH 2 CLIP-LIM GND GND -INPUT CH 2

12 10 9

C

A

INPUTS PARALLEL CENTER STEREO

MONO-BRIDGE

A W 401

C 31 220p

KEY PIN 11 V- B PIN 12 CLIP B

C

CH 2 -IN CH 2 +IN

SW 31 3-POS

21 8 7

NC

PIN 13 GND

PIN 14 -0UT B

J 401 XLR
2 3 1

W 403

T 401
3 (4) 6 (8) 4 (5)

R 401
(6, 7)

W 406
PIN 15 -IN B PIN 16 +OUT B

3

A W 405 C 403

W 404 C 402 A
SHIPPED XLR PIN 2 HI MOVE W 303, 304 TO ALT POSITION FOR PIN 3 HI

1 (1)

5

+INPUT CH 2 GND GND CH 2 SPKR SIG

C 401 470 p W 402

PIN 17 +IN B PIN 18 GND PIN 19 SP-B PIN 20 V+B PIN 21 SPARE PIN 22 SPARE 18 14 13

470 p

A
15

CH 1 MUTE CH 2 MUTE CH 1 PWR-ON CH 2 PWR-ON CH 1 THERMAL CH 2 THERMAL CH 1 AC RELAY CH 2 AC RELAY

B

17 20 19 24 23 26 25

B

NOTES, ALL REV LEVELS
1. ALL RESISTORS 1/4W, 5%. 2. ALL CAPACITORS 100V 3. J 32, 26-PIN CONNECTOR, TO J 1 ON FRONT DISPLAY BOARD PC-004001-00. 4. PARTS FOR CH 1 NUMBERED 301-399. 5. PARTS FOR CH 2 NUMBERED 401-499. 6. PARTS IN COMMON TO BOTH CHANNELS NUMBERED 31-49. 7. BOARD SHIPPED WITH W 301-304, W 401-404 MOUNTED AS SHOWN. 8. PARTS WITHIN DOTTED OUTLINE FOR USER MODIFICATION. SEE MANUAL.
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES. DIMENSIONS PER ANSI Y14.5-1982 CONTRACT NO.

PARTS LIST

AUDIO PRODUCTS, INC.
A
COSTA MESA, CALIFORNIA
DATE

A

NOTES, REV LEVELS A-B
DECIMALS

TOLERANCES ARE: DECIMALS ANGLES O APPROVALS

1. THE FIRST YEAR OF PRODUCTION EX AMPLIFIERS SHIPPED WITH PC-004002-00 REV A OR B 2. FOR PC-004005-00 REV A, ADDED PADS 1-20 FOR LEVEL 1-A, 2-A INPUT ACCESSORY PCB 3. ADDED J33, 5-PIN INPUT EXTENDER HEADER AND W305,306,405 & 406. 4. NO CHANGE IN PINOUT OF J32, PINS 1-26 5. SW-31 WAS REVISED ON PC-004005-00 REV A, BUT WILL NOT AFFECT FUNCTION OF UPPER SLOT PCB.
.XX

SCHEMATIC DIAGRAM EX SERIES STANDARD,
SIZE FSCM NO.

+ -

.XXX

+ -

+ DRAWN

DEBURR EDGES .XXX R MAX MATERIAL CHECKED

PAT QUILTER

6-18-90

PC-004005-00

EX/MPA SERIES
USED ON

FINISH

ISSUED

NOTES: UNLESS OTHERWISE SPECIFIED

NEXT ASSY

C
CAD SEED FILE NO.

INPUT BOARD SH-004002-00
DWG NO. CAD FILE NO.

REV

D
1 OF 1

APPLICATION

DO NOT SCALE DRAWING

SH40002C1.FCD

SCALE

NONE

SH4002D1.FCD

SHEET

4

3

2

1