Page 1
SCHEMATIC, 2-CH POWER AMPLIFIER, EX 1600
REV K, FOR PC-004105-00 REV D
DOC NO. SH-004101-00
SHEET 1, HOUSEKEEPING SUPPLY AND FAN SPEED CONTROL
+24 V
1
3
+15 V
4
-15 V
2
-24 V
SCHEDULE OF TEST POINTS ETCJ 502-1
CH-1 CH 2
J 502-1 J 602-1 NEGATIVE LIMITING VOLTAGE
J 502-2 J 602-2 POSITIVE LIMITING VOLTAGE
J 502-3 J 602-3 SWITCHING THRESHOLD REFERENCE VOLTAGE
J 502-4 J 602-4 AMPLIFIER LOOP OPAMP OUTPUT
J 502-6 J 602-6 SWITCHED POS AMPLIFIER RAIL--HIGH VOLTAGE
J 502-8 J 602-8 SWITCHED NEG AMPLIFIER RAIL--HIGH VOLTAGE
PART NUMBERING SCHEDULE FOR PCBS USED IN EX-1600:
PCB NUMBER DESCRIPTION CH 1 PARTS CH 2 PARTS PARTS IN COMMON
PC-004001-00
PC-004002-00
PC-004105-00
PC-004105-00
PC-004105-00
DISPLAY PCB
INPUT PCB
AMP PCB
SPKR PCB
AC PCB
101-199 201-299 1-29
301-399 401-499 31-49
501-599 601-699 51-69
701-799 801-899 71-99
901-UP (SAME BOARD FOR CH 1, CH2)
+24 V UNREG
+15 V REG
-15 V REG
-24 V UNREG
+23V 0N/OFF ENABLE TRANSFORMER THERMAL SENSOR THERMAL BUS TO FAN SPEED CONTROL
U 52
7815
321
100
35 V
C 55
100 2200
35 V
D 53
1N4746, 18V
D 52
1N4746, 18V
32
1
U 51
C 53C 56
2200
C 54
7915
+23V 0N/OFF ENABLE TRANSFORMER THERMAL SENSOR THERMAL BUS TO FAN SPEED CONTROL
TO SHEET 2
R 53
AUDIO AND POWER GROUNDS
J 51
XF PTC
5
4
XF PTC
18 Vac
D 51
1N4004
35V
35V
BR 51
TO SHEET 3
1
18 Vac
2
CT
3
D
C
RN 51
2.7K
2.7K
-24 V
180K
R 52
C 52
47-10NP
Q 52
2N2907
Q 53
2N4410
2.7K
A
2.7K
NOTES.
1. ALL RESISTORS 1/4-WATT, 5% UNLESS NOTED.
2. ALL CAPACITORS 100V UNLESS NOTED.
TOLERANCE 20% FOR ELECTROLYTIC TYPES, 10% ON OTHER TYPES.
3. BRIDGE RECTIFIER BR 51, 1.5A, 100V.
4. R 598, 698 IS POSITIVE TEMPERATURE COEFFICIENT RESISTOR MOUNTED TO HEAT SINK.
RESISTANCE 100 OHM COLD, RISING AT 55 C. QSC P/N RE-000006-PT
5. Q 503, 504, 603, 604 ARE SWITCHING FETS. QSC P/N QD-000031-QD.
125 W, 60 V MINIMUM, ON-RESISTANCE 0.030 OHMS MAX.
6. ZENERS D 503, 504, 603, 604 MARKED 7.5 V TESTED FOR LOW LEAKAGE, QSC P/N QD-0007.5-ZT.
7. ZENERS D 509, 513, 609, 613, 6.2V-500mW, TESTED FOR LOW LEAKAGE, QSC P/N QD-000024-QD.
8. PARTS MARKED WITH TRIANGLE MUST BE REPLACED WITH EXACT TYPE ONLY.
9. PARTS ENCLOSED WITHIN DOTTED OUTLINE HAVE VOLTAGES GREATER THAN 42V.
R 51
47K
C 57
.01
B
2SC3298B
C 51
100-35V
Q 51
J 52-1
FAN RED
24 V BRUSHLESS FAN
FAN BLACK
J 52-4
3.3-1W
HEAT SINK GROUND
A
LAST USED REF. DESIGN.
BR 51, BR 502, 602
C51 - 57, C534, 634
D51 - 53, D513, 613
F504, 604
J51, 52, J503, 603
K501, 601
L501, 601
Q51 - 53, Q510, 610
R51 - 53, R544, 644, R598, 698, R599, 699
RN51, RN502, 602
U51, 52, U506, 606
VR503, 603
NOTES: UNLESS OTHERWISE SPECIFIED
WP-004101-00
APPLICATION
EX 1600
USED ONNEXT ASSY
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
DIMENSIONS PER ANSI Y14.5-1982
TOLERANCES ARE:
DECIMALS
.XX .XXX
DEBURR EDGES .XXX R MAX
+
+
-
-
SH-004101-00
1
K
AUDIO PRODUCTS, INC.
ANGLESDECIMALS
+
-
SCHEMATIC DIAGRAM
EX 1600
D
SH-004101-00
SH4101K1.FCDNONE
K
Page 2
SCHEMATIC, EX-1600, SHEET 2, AMPLIFIER CHANNEL ASCHEMATIC, EX-1600, SHEET 2, AMPLIFIER CHANNEL A
C 516 R 531
470-1W
D 512
1N400410-25V
TO -24 V
MUTE
THERMAL
GND
GND
GND
SPKR SIG
GND REF
PWR-ON
14-PIN RIBBON
J 503
CLIP
+INPUT
AUDIO INPUT STAGE
10
R 543
330K
8
C 517
220-10NP
R 527
10K-2W
11
C 518
470-10V
R 529
10K-2W
VR 502
5K
+ CURR LIM+ CURR LIM
VR 503
5K
- CURR LIM- CURR LIM- CURR LIM
C 513
470-10V
6
5
12
13
HEAVY LINE SHOWS
MAIN SIGNAL PATH
14
9
7
J 502-1
J 502-2
R 528
7.5K-2W
R 533
47K-1W
R 530
470-1W
A
U 504
VTL 5C4
R 544
27K
A
TO +15V
R 532, 47K
TO +54 V RAIL
C 514
47-50V
C 515
47-50V
TO +15 V
TO -15 V
SPEAKER BUS
A
MUTING INPUT CAP.
T 1
TIMING CAP.
T 2
GROUND
T 3
RELAY
DRIVER
T 4
MUTE BUS
T 5
THERM ADJUST, 0.5-8.5V
T 6
THERMAL SENSE, 0-8V
T 7
THERMAL BUS, 0-8V
T 8
OP-AMP OUT - HF PROTECT
T 9
DC PROTECT SENSE
T10
THERMAL LIMITING
T11
OP-AMP OUT
T12
OPTOCELL
T13
CLIP BUS
T14
+15 V
T15
-15 V
T16
NEGATIVE BYPASS, -7.5V NORMAL, -2.5V SHORT
T17
NEGATIVE CURRENT FEEDBACK, -3V PEAK
T18
NEGATIVE TRIMMER
T19
OUTPUT VOLTAGE FEEDBACK
T20
POS CURRENT TRIMMER
T21
POSITIVE CURRENT FEEDBACK +3V PEAK
T22
POSITIVE BYPASS, +7.5V NORMAL, +2.5V SHORT
T23
NEGATIVE DRIVER, -0.6V IDLE
T24
POSITIVE DRIVER, +0.6V IDLE
T25
C 524
47-10NP
A
RN 501
10K-4
U 506-B
R 597
5532
1.5 K
BA
1K
+15 V
8
5
6
4
-15 V
DC
68 p
ON-OFF MUTING DELAY
SHUTDOWN MUTING
THERMAL
HIGH FREQ
DC RECTIFIER
MUTING BUS
MUTE +8V
RUN 0V
RELAY
MUTE -24V
RUN +15V
THERMAL SENSING
PROCESSING BUFFER
CLIP RECTIFIER-BUFFER
LIMITING THRESHOLD +4.5V
4.5-6.5Vac CLIPPING PEAKS MUTE +4.5V
LOAD IMPEDANCE
SENSING
C 522
18p
R 540
21.5K-.5W
R 538R 536 R 537
C 521
75K
.12
C 520
.0022
R 539
47
3
2
1
C 526
15 p
D 509
1N 4148
7
C 525
464
A
U 506-A
R 541
590
50C +O.5V
90C +8V
SHUTDOWN DETECTORS
IDLE -1.2V
CLIP +3V PEAKS0-3Vac NORMAL AUDIO
NEGATIVE BIAS
CONTROLLER
BIAS ENABLE
POSITIVE BIAS
CONTROLLER
D 510
D 513
1N4735
6.2 V
1N 4148
D 511
1N4735
TO MUTING
6.2 V
U 503
IC-000010-00
J 502-4
+23V 0N/OFF ENABLE
TO SHEET 1
U 501
IC-000008-00
SCHMIDTT COMPARATOR
REF VOLTT2LOW RAIL
T1
D 504
7.5V
J 502-3 J 502-6
VR 501
100
BIAS
BIAS
R 599
50 OHM
25 C
C 504
.01
D 505
1N4004
BIAS
NETWORK
C 512
.0033
D 506
1N4004
R 598
PTC-60C
THERMALLY
CONNECTED
TO Q 508
TRANSFORMER THERMAL SENSOR THERMAL BUS TO FAN SPEED CONTROL
U 505-B
D 503
7.5V
C 519
+15 V
8
5
6
4
-15 V
R 534 C 523
2.7K
A
T1
REF VOLT
SCHMIDTT
COMPARATOR
U 502
IC-000009-00
680p
7
SWITCHING THRESHOLD
.0022
T2
REFERENCE
-54 V RAIL
LOW RAIL
+54 V RAIL
U 505-A
5532
R 535
15K
C
D
1
RN 502
1K-4
LOSS-OF-SAT
SHUTDOWN
3
2
A
T3
LOSS-OF-SAT
SHUTDOWN
SHUTDOWN
T3
SPEAKER BUS
B
SHUTDOWN
GATE DRIVER
SLEW NEG SUPPT6BOOTSTRAP CAP
T4
R 508
332
R 503 R 506
1.5K
750K
R 501 R 505
1.5K
750K
R 507
332
T4
SLEW
GATE DRIVER
T5
J 502-8
R 519
22-1W
R 518
22-1W
HIGH RAIL
GATE
SOURCE REF
C 502 47-50V
R 513 22K-1W
R 520 R 521 R 522
Q 508 Q 509 Q 510
Q 502
2SC3298B
R 504
4.7-1W
R 502
4.7-1W
Q 501
2SA1306B
AUDIO OUTPUT STAGE
Q 505 Q 506 Q 507
R 516 R 515 R 517
GATE PWR
GATE
SOURCE REF
SOURCE REF
+108 V RAIL
T9
T8
T7
+54 +108 V SWITCHED BUS
2SA1302
3 PL
2SC3281
3 PL
-54 -108 V SWITCHED BUS
T5
T6
T7
-108 V RAIL
.22-3W
3 PL
.22-3W
3 PL
R 514
3K-2W
C 505
470-10V
R 511
R 510
22 FP
22 FP
D 508
1N5402
D 507
IN5402
D
GS
R 512 C 503
2.7-2W .10
HEATSINK
GROUND
C 507
.10
R 509 C 501
2.7-2W
D
GS
Q 504
D 502
MUR 810
D 501
MUR 810
Q 503
R 524
3.9-2W
.10
C 509
12000-63V
C 511
12000-63V
L 501
R 525
5.6-2W
C 510
12000-63V
C 508
12000-63V
C 527
.047-400A
C 529 C 530
.047-400A .047-400A
C 531 C 532
.047-400A .047-400A
C 533 C 534
.047-400A .047-400A
2uH
TO -24 V
R 523
5.6-2W
C 506
.10
R 526
3K-2W
TO RECT BR 501
R 542
47K-1W
TO -15V
TO RECT BR 502
TO -108 V RAIL
TO -54 V RAIL
K 501
BR 502
BR 501
C 528
.047-400A
NO
NC
SPEAKER
OUTPUT
SPEAKER
COMMON
15A-125V
15A-125V
15A-125V
15A-125V
F 502
F 504
F 501
F 503
J 52-5
J 501
6-PIN MATE-LOK
3
4
6
1
TRANSFORMER
CENTER TAP
2
5
J 52-6
SH-004101-00
2
K
D
SH-004101-00 K
SH4101K2.FCD
Page 3
+24 V
+15 V
-15 V
-24 V
J 603
1
3
4
2
14-PIN RIBBON
N.C.
N.C.
N.C.
N.C.
SCHEMATIC, EX-1600, SHEET 3, AMPLIFIER CHANNEL BSCHEMATIC, EX-1600, SHEET 3, AMPLIFIER CHANNEL B
TO -24 V
1N4004
C 616
10-25V
R 631
470-1W
+23V 0N/OFF ENABLE TRANSFORMER THERMAL SENSOR THERMAL BUS TO FAN SPEED CONTROL
TO SHEET 1
R 698D 612
PTC-60C
THERMALLY
CONNECTED
TO Q 607
MUTE
CLIP
GND
GND
GND
SPKR SIG
+INPUT
AUDIO INPUT STAGE
GND REF
PWR-ON
10
R 643
330K
8
220-10NP
10K-2W
11
J 602-1
C 618
470-10V
R 629
10K-2W
VR 602
5K
+ CURR LIM+ CURR LIM
VR 603
5K
- CURR LIM- CURR LIM
C 613
470-10V
J 602-2
6
5
12
R 628
7.5K-2W
13
HEAVY LINE SHOWS
MAIN SIGNAL PATH
14
9
47K-1W
7
C 617
R 627
470-1W
A
U 604
VTL 5C4
R 633
R 630
A
TO +15V
R 632, 47K
R 644
27K
TO +54 V RAIL
C 614
47-50V
C 615
47-50V
TO +15 V
TO -15 V
SPEAKER BUS
A
MUTING INPUT CAP.
T 1
TIMING CAP.
T 2
GROUND
T 3
RELAY
DRIVER
T 4
MUTE BUS
T 5
THERM ADJUST, 0.5-8.5V
T 6
THERMAL SENSE, 0-8V
T 7
THERMAL BUS, 0-8V
T 8
OP-AMP OUT - HF PROTECT
T 9
DC PROTECT SENSE
T10
THERMAL LIMITING
T11
OP-AMP OUT
T12
OPTOCELL
T13
CLIP BUS
T14
+15 V
T15
-15 V
T16
NEGATIVE BYPASS, -7.5V NORMAL, -2.5V SHORT
T17
NEGATIVE CURRENT FEEDBACK, -3V PEAK
T18
NEGATIVE TRIMMER
T19
OUTPUT VOLTAGE FEEDBACK
T20
POS CURRENT TRIMMER
T21
POSITIVE CURRENT FEEDBACK +3V PEAK
T22
POSITIVE BYPASS, +7.5V NORMAL, +2.5V SHORT
T23
NEGATIVE DRIVER, -0.6V IDLE
T24
POSITIVE DRIVER, +0.6V IDLE
T25
C 624
47-10NP
R 636
1.5 K
A
RN 601
10K-4
B
R 697
+15 V
1K
8
5
U 606-B
5532
7
6
4
-15 V
D
C 625
68 p
ON-OFF MUTING DELAY
SHUTDOWN MUTING
THERMAL
HIGH FREQ
DC RECTIFIER
MUTING BUS
MUTE +8V
RUN 0V
RELAY
MUTE -24V
RUN +15V
THERMAL SENSING
PROCESSING BUFFER
CLIP RECTIFIER-BUFFER
LIMITING THRESHOLD +4.5V
4.5-6.5Vac CLIPPING PEAKS MUTE +4.5V
LOAD IMPEDANCE
SENSING
18p
C 622
R 640
A
R 641
U 606-A
590
21.5K-.5W
R 638
75K
3
2
C 626
15 p
C 621
C 620
.0022
.12
R 639
47
1
R 637
464
A
C
50C +O.5V
90C +8V
SHUTDOWN DETECTORS
IDLE -1.2V
CLIP +3V PEAKS0-3Vac NORMAL AUDIO
NEGATIVE BIAS
CONTROLLER
POSITIVE BIAS
CONTROLLER
D 613
1N4735
6.2 V
D 609
1N 4148
TO MUTING
BIAS ENABLE
D 610
1N 4148
D 611
1N4735
6.2 V
U 603
IC-000010-00
J 602-4
R 699
50 OHM
25 C
C 604
.01
BIAS NETWORK
VR 601
100
BIAS
BIAS
D 605
1N4004
C 612
D 606
1N4004
.0033
D 604
7.5V
U 605-B
D 603
7.5V
5
6
U 601
IC-000008-00
SCHMIDTT COMPARATOR
REF VOLTT2LOW RAIL
T1
C 619
680p
+15 V
8
7
4
-15 V
R 634 C 623
A
2.7K
T1
REF VOLT
SCHMIDTT
COMPARATOR
U 602
IC-000009-00
+54 V RAIL
U 605-A
5532
1
R 635
15K
SWITCHING THRESHOLD
REFERENCE
C
D
.0022
RN 602
1K-4
-54 V RAIL
T2
LOW RAIL
LOSS-OF-SAT
SHUTDOWN
T3
SPEAKER BUS
3
2
B
A
T3
LOSS-OF-SAT
SHUTDOWN
SHUTDOWN
SHUTDOWN
GATE DRIVER
SLEW NEG SUPPT6BOOTSTRAP CAP
T4
R 608
332
R 603
R 606
1.5K
750K
R 601
R 605
1.5K
750K
R 607
332
T4
SLEW
GATE DRIVER
T5
J 602-6J 602-3
J 602-8
R 619
22-1W
R 618
22-1W
HIGH RAIL
GATE
SOURCE REF
C 602 47-50V
R 613 22K-1W
R 620 R 621 R 622
Q 608 Q 609 Q 610
Q 602
2SC3298B
R 604
4.7-1W
R 602
4.7-1W
Q 601
2SA1306B
Q 605 Q 606 Q 607
R 616 R 615 R 617
GATE PWR
GATE
SOURCE REF
SOURCE REF
+108 V RAIL
T9
T8
T7
+54 +108 V SWITCHED BUS
2SA1302
3 PL
AUDIO OUTPUT STAGE
2SC3281
3 PL
-54 -108 V SWITCHED BUS
T5
T6
T7
-108 V RAIL
R 611 Q 604
22 FP
GS
2.7-2W .10
.22-3W
3 PL
D 608
1N5402
HEATSINK
GROUND
C 607
D 607
IN5402
.22-3W
3 PL
R 614
3K-2W
R 610
22 FP
GS
C 605
470-10V
D
R 612 C 603
D 602
MUR 810
R 624
3.9-2W
.10
D 601
MUR 810
R 609
2.7-2W
C 601
.10
D
Q 603
C 609
12000-63V
C 611
12000-63V
L 601
R 625
5.6-2W
C 610
12000-63V
C 608
12000-63V
C 627 C 628
.047-400A
C 629 C 630
.047-400A .047-400A
C 631 C 632
.047-400A .047-400A
.047-400A .047-400A
2uH
TO -24 V
R 623
5.6-2W
C 606
.10
R 626
3K-2W
TO RECT BR 601
R 642
47K-1W
TO -15V
TO RECT BR 602
BR 602
TO -108 V RAIL
TO -54 V RAIL
K 601
D
BR 601
.047-400A
C 634C 633
NO
NC
SPEAKER
OUTPUT
SPEAKER
COMMON
F 602
15A-250V
F 604
15A-250V
F 601
15A-250V
F 603
15A-250V
J 52-2
J 52-3
J 601
6-PIN MATE-LOK
3
4
6
1
TRANSFORMER
CENTER TAP
2
5
SH4101K3.FCD
SH-004101-00
3
K
KSH-004101-00
Page 4
XXXXXXXXXXX
X
X
AC HI (SW)
901
AC LO
907
R 901
1 OHM
COLD
R 902
1.2K-5W
FUSE
SEE
TABLE
C 901
.068
250 VAC
PC TERMS
913
914
915
904
905
906
902
903
908
909
910
911
912
1600
1250
800
1500
2000
2 CHANS
PER CHAN.
230V 120V 100V
NC
FANNC
NC
120V
120V
O V
FAN
100V 100V
NC
O V
100V120V
120V 100V
120V
NC
120V
NC
FANNC
NC
NC
100V100V
0 V 0 V
0 V 0 V
THRM THRM THRM
THRM THRM THRM
FAN FANFAN
FUSE VALUES
15A 30A 30A
12A 30A30A?
12A 20A 20A
15A 30A 30A
12A 20A 20A
POWER TRANSFORMER XF-001510-00
TERM NO
AC VOLTS LEAD COLOR
120 Vac
1
100 Vac
2
0 Vac
3
BLK/WHT
(Coil on Leg One)
(Coil on Leg Two)
4
120 Vac
5
6
100 Vac
0 Vac
BRN/YEL
PRIMARY SECONDARY
BLK
WHT
BRN
YEL
SEE PARA 3.3.2
SEE PARA 3.3.2
LEAD COLOR
RED
ORG
BLU
WHT/RED
WHT/ORG
WHT/BLU
BLU
GRY
GRN
WHT/BLU
WHT/GRY
WHT/GRN
GRN/WHT
GRN/WHT
PURP/WHT
PURP/WHT
TERM NO
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
NOT USED
NOT USED
100VAC (XFRMR BROWN/YELLOW)
100 VAC (XFRMR BLACK/WHITE)
SWITCH RETURN (RED)
THRM
FAN 120 VAC
120VAC (XFRMR BLACK)
120VAC (XFRMR BROWN)
NOT USED
902 903 904 905
901
911 912 913 914 915
120 VOLT AC PCB WIRING
R901
C901
906
F901
907 908 909 910
R902
RISK OF FIREREPLACE WITH
FUSE AS
20A 250V
MARKED
AC LO (WHITE)
OVAC (XFRMR YELLOW)
OVAC (XFRMR WHITE)
THRM
120VAC (XFRMR BROWN)
120VAC (XFRMR BLACK)
SWITCH RETURN (RED)
100VAC (XFRMR BLK/WHT)
100VAC (XFRMR BRN/YEL)
N.C.
N.C.
THRM
FAN
902 903 904 905
901
911 912 913 914 915
FANFAN
N.C.
100 VOLT AC PCB WIRING
R901
C901
906
F901
907 908 909 910
R902
RISK OF FIREREPLACE WITH
FUSE AS
20A 250V
MARKED
AC LO (WHITE)
OVAC (XFRMR YELLOW)
OVAC (XFRMR WHITE)
THRM
0 VAC WHITE
120VAC (XFRMR BROWN)
100VAC (XFRMR BROWN/YELLOW)
100 VAC (XFRMR BLACK/WHITE)
SWITCH RETURN (RED)
THRM
120VAC (XFRMR BLACK)
.02
.010
FAN
902 903 904 905
901
911 912 913 914 915
FAN
N.C.
N.C.
230 VOLT AC PCB WIRING
R901
C901
906
F901
AC LO (WHITE)
N.C.
OVAC (XFRMR YELLOW)
THRM
907 908 909 910
R902
RISK OF FIREREPLACE WITH
FUSE AS
20A 250V
MARKED
AUDIO PRODUCTS
SCHEMATIC/WIRING DIAGRAM
EX/MX 2 SPACE AMPS
NONE
SH-004103-00
Page 5
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
, THAT MAY NOT
4
3
2
1
REVISIONS
ZONE REV
DESCRIPTION
PROD RELEASE PER ECO 1846
C
DATE
L
G.
APPROVED
D
PC TERMS
AC HI (SW)
901
R 901
SEE
TAB BLK
FUSE
F901
SEE
TAB BLK
C
C 901
.068
250 VAC
AC LO
909
R 902
SEE
TAB BLK
913
914
915
904
905
906
902
903
907
908
910
911
912
MODEL (V)
EX 800 (100V)
EX 800 (120V)
EX 800 (230V)
EX 1250 (100V)
EX 1250 (120V)
EX 1250 (230V)
EX 1600 (100V)
EX 1600 (120V)
EX 1600 (230V)
MX 1000a (100V)
MX 1000a (120V)
MX 1000a (230V)
MX 1500a (100V)
MX 1500a (120V)
MX 1500a (230V)
TABULATION BLOCK
FUSE
F901
20A 250V
20A 250V
12A 250V
20A 250V
20A 250V
12A 250V
30A 125V
30A 125V
15A 250V
20A 250V
20A 250V
12A 250V
30A 125V
30A 125V
15A 250V
R 902
1.2K 5W
1.2K 5W
1.2K 5W
1.2K 5W
1.2K 5W
1.2K 5W
R 901
1.0 OHM 30 A
1.0 OHM 30 A
2.5 OHM 15 A
1.0 OHM 30 A
1.0 HOM 30 A
2.5 OHM 15 A
1.0 OHM 30 A
1.0 OHM 30 A
2.5 OHM 15 A
1.0 OHM 30 A
1.0 OHM 30 A
2.5 OHM 15 A
1.0 OHM 30 A
1.0 OHM 30 A
2.5 OHM 15 A
D
C
B
B
PARTS LIST
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
A
1.
THIS DRAWING USED IN CONJUCTION WITH SCHEMATIC DIAGRAMS
SH-004100-00, SH-004100-01, SH-004101-00, SH-004101-01, SH-004101-02,
SH-001010-00, SH-001011-00, SH-001510-00, AND SH-001511-00
NOTES: UNLESS OTHERWISE SPECIFIED
4
3
PC-004103-00 EX/MXa 2 SP.
USED ONNEXT ASSY
APPLICATION
DIMENSIONS PER ANSI Y14.5-1982
TOLERANCES ARE:
DECIMALS
.XX .XXX
+
-
DEBURR EDGES .XXX R MAX
MATERIAL
FINISH
+
-
DO NOT SCALE DRAWING
2
CONTRACT NO.
ANGLESDECIMALS
+
-
O
APPROVALS
DRAWN
LEORA 5-13-93
CHECKED
ISSUED
CAD SEED FILE NO.
DATE
SIZE
FSCM NO. DWG NO. REV
C
SCALE
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
SCHEMATIC,
AC PCB EX/MXa 2 SP.
SH-004103-00
CAD FILE NO.
SH4103C1.FCD
SHEET
1 OF 1NONE
A
C
1
Page 6
AC RELAY 1
AC RELAY 2
+24V
-24V
REG. +15V
- INPUT
+ INPUT
SIG. GND
SIG. GND
REG. -15V
THERM BUS, 0-8V
PWR-ON, 0-15V
SPKR SIGNAL, 5V PK
CLIP-LIM BUS, 0-4V
MUTE BUS, 0-8V
PWR GND
CH 2 PINS
- INPUT
+ INPUT
SIG. GND
SIG. GND
THERM BUS, 0-8V
PWR-ON, 0-15V
SPKR SIGNAL, 5V PK
CLIP-LIM BUS, 0-4V
MUTE BUS, 0-8V
PWR GND
J 1 26-PINS
25
26
10
9
12
1
2
3
5
11
23
19
15
21
17
13
4
6
7
8
24
19
16
22
18
14
RN101
10K D(C)
10K B
Q103
2N4410
R112
1.5K
RN103
1K-D
LD105
GRN
PWR ON
SCHEMATIC, EX-SERIES DISPLAY BOARD.
PC-004001-00, REV A.
100p
C101
10K C(D)
U101 B
8
5532
6
5
10K A
100p
+
C108
10uF
LD104
YEL YEL
-30
BA6124
U102
C105
10uF
VR101
7
4
10K
GAIN
R105
100
R109
3.9K
1K-D
LD103
C106
-10
10uF
R113
634
R107
330K
R108
536
RN 104
1K-C
NOTES
1. ALL RESISTORS 1/4 WATT UNLESS SPECIFIED.
2. ALL CAPACITORS 25V UNLESS SPECIFIED.
3. CH 2 RESISTOR NETWORK SECTIONS ( ) WHEN DIFFERENT.
4. CH 1 COMPONENTS NUMBERED 101-199
5. CH 2 COMPONENTS NUMBERED 201-299.
6. PARTS IN COMMON TO BOTH CHANNELS NUMBERED 1-99.
7. U102, 202 ROHM BA6124 OR SAMSUNG KA2284/85
8. LD 101, 102, HIGH-EFFICIENCY RED LED.
9. LD 103, 104, HIGH-EFFICIENCY YELLOW LED.
10. LD 105, HIGH-EFFICIENCY GREEN LED.
C102
R102
1K
LEVEL
R106
10K
R110
4.7K
A
LD102
RED
LIM-CLIP
1K-B
1K-A
Q 104
2N 4410
U101 A
5532
3
2
R103 R104
1K 536
R111
1.5K
C104
470 10V
+
C 109
10uF
Q102
2N
4410
1
RN102
C103
C107
4.7uf NP
10K-D(A)
10K-C(B)
10K-B(C)
10K-A(D)
.0033
C2
10uf
C1
10uf
Q101
MPS2907
+
+
D101
1N4004
R101
100
LD101
RED
TEMP-PROT
J101, 201 14-PINS
2
1
4
13
10
11
3
7
8
14
12
9
RN103
1K-C
1K-B
1K-A
5
6
+24V UNREG
-24V UNREG
+15V REG
TO AMP +INPUT
TO AMP -INPUT
SIG. GND
-15V REG
THERM BUS 0-8V
Vcc SENSE R
SPKR SIGNAL, 5V PK
CLIP-LIM BUS, 0-4V
MUTE BUS, 0-8V
PWR GND
PWR GND
PAT QUILTER 6-19-90
A PROD REL PER ECO 756
B REVISED PER ECO 1603 WR
SCHEMATIC DIAGRAM
EX-SERIES DISPLAY BOARD
6-19-90
9-29-92
SH-004001-00 1 B
FCAD: 004001SH SH4001B1.FDC
SH-004001-00 B
1 OF 1
Page 7
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
D
C
B
, THAT MAY NOT
4
3
2
1
REVISIONS
ZONE REV
DESCRIPTION
DATE
APPROVED
ABPROD REL PER ECO 756
6-10-91
1-24-92
L
G.
SGM
SGM
D
C
B
SCHEMATIC, EX-SERIES STANDARD INPUT BOARD.
FOR PC-004005-00 REV B 7-15-93
J 301
XLR
CH 1 +IN
2
3
1
A
J 31
W 304
SHIPPED XLR PIN 2 HI
MOVE W 303, 304 TO ALT
POSITION FOR PIN 3 HI
J 33
CH 1 -IN
GND
CH 2 -IN
CH 2 +IN
J 401
XLR
2
3
1
A
SHIPPED XLR PIN 2 HI
MOVE W 303, 304 TO ALT
POSITION FOR PIN 3 HI
W 303
A
W 403
INPUTS
PARALLEL
W 404
C 302 C 301
470 p 470 p
MONO-BRIDGE
CENTER
SW 31
STEREO
3-POS
C 402 C 401
470 p 470 p
R 32 24K
W 301
T 301
1 (1) 4 (5)
3 (4)
W 302
20.0 K
W 401
T 401
3 (4) 6 (8)
1 (1)
W 402
R 31
6 (8)
A
4 (5)
C 31
220p
(6, 7)
C 303
(6, 7)
R 301
R 401
C 403
CHANGE VALUE R31, WAS 21 K
SEE ECO 1097
C REVISED FOR MIN-SLOT, BR-SW
SEE ECO 1297 BY PHQ
D
PADS FOR LEVEL 1-A
OR 2-A ACCESSORY PCB
PIN 1 V+A
PIN 2 SP-A
PIN 3 GND
PIN 4 +1N A
A
A
W 305
W 306
W 406
W 405
NC
NC
PIN 5 +OUT A
PIN 6 -IN A
PIN 7 -OUT A
PIN 8 GND
PIN 9 CLIP
PIN 10 V-A
KEY
PIN 11 V- B
PIN 12 CLIP B
PIN 13 GND
PIN 14 -0UT B
PIN 15 -IN B
PIN 16 +OUT B
PIN 17 +IN B
PIN 18 GND
PIN 19 SP-B
PIN 20 V+B
PIN 21 SPARE
PIN 22 SPARE
J 32
11
+15 V REG
16
CH 1 SPKR SIG
4
GND
6
1
2
22
12
10
9
21
8
7
3
5
14
13
15
18
17
20
19
24
23
26
25
GND
+INPUT CH 1
-INPUT CH 1
CH 1 CLIP-LIM
-15 V REG
-24 V
+24 V
CH 2 CLIP-LIM
GND
GND
-INPUT CH 2
+INPUT CH 2
GND
GND
CH 2 SPKR SIG
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
A
A
REVISE PER ECO 1916
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.
A
NOTES, REV LEVELS A-B
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
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
DIMENSIONS PER ANSI Y14.5-1982
TOLERANCES ARE:
DECIMALS
.XX .XXX
+
-
DEBURR EDGES .XXX R MAX
MATERIAL
+
-
5. SW-31 WAS REVISED ON PC-004005-00 REV A, BUT WILL NOT AFFECT FUNCTION OF UPPER SLOT PCB.
NOTES: UNLESS OTHERWISE SPECIFIED
4
PC-004005-00 EX/MPA SERIES
USED ONNEXT ASSY
APPLICATION
3
FINISH
DO NOT SCALE DRAWING
2
CONTRACT NO.
ANGLESDECIMALS
+
-
O
APPROVALS
DRAWN
PAT QUILTER
CHECKED
ISSUED
CAD SEED FILE NO.
SH40002C1.FCD
PARTS LIST
DATE
6-18-90
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
SCHEMATIC DIAGRAM
EX SERIES STANDARD,
INPUT BOARD
SIZE
FSCM NO. DWG NO. REV
C
SCALE
CAD FILE NO.
SH-004002-00 D
SHEET
1 OF 1SH4002D1.FCDNONE
1
A
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