Page 1
SCHEMATIC, AMPLIFIER CHANNEL, EX 4000-B
SCHEMATIC, AMPLIFIER CHANNEL, EX 4000-B
REV U, 2-15-95, FOR PC-004200-00 REV K
J 903
D 938
C 941
10-25V
220-16NP
10K-2W
J 905-1
R 1000
10K-2W
J 905-2
10K-2W
D 942
D 941
D 947
C 952
R 994
R 988
R 992
470-1W
A
R 987
330K
1N4004
1N4004
1N4004
1N4004
R 996
27K
D 936
1N4004
R 982
470-1W
C 943
47-35V
C 944
47-35V
TO +15V
R 989
60.4K
TO +15 V
TO -15 V
SPEAKER BUS
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
+24 V
+15 V
-15 V
-24 V
MUTE
THERMAL
CLIP
GND
GND
GND
SPKR SIG
470-10V
VR 902
C 959
470-10V
1
3
4
2
10
8
11
C 960
VR 903
5K
+CURR LIM
+CURR LIM
5K
-CURR LIM
-CURR LIM
6
5
12
13
A
+INPUT
AUDIO INPUT STAGE
HEAVY LINE SHOWS
MAIN SIGNAL PATH
14
U 903
VTL 5C4
RN 909
10K-4
BA
U 901-B
5532
A
9
GND REF
PWR-ON
R 923
47K-1W
7
TO +46 V RAIL
NOTES: UNLESS OTHERWISE SPECIFIED
C 951
47-16NP
A R 990 R 993
6.8K 412
+15 V
8
5
6
4
-15 V
DC
C 957
68 p
+24 V UNREG
+15 V REG
-15 V REG
-24 V UNREG
C 954
100
25 V
C 953
100
25 V
ON-OFF MUTING DELAY
SHUTDOWN MUTING
RELAY
MUTE -24V
RUN +15V
THERMAL SENSING
PROCESSING BUFFER
THERMAL
HIGH FREQ
DC RECTIFIER
MUTING BUS
MUTE +8V
RUN 0V
LIMITING THRESHOLD +4.5V
4.5-6.5Vac CLIPPING PEAKS MUTE +4.5V
LOAD IMPEDANCE
SENSING
18p
C 914
R 940
30.0K-.5W
R 942
C 916
75K
.15
A
3
U 901-A
R 991
2
1
590
C 962
10 pF
7
7815U 904
D 940
1N4746, 18V
D 939
1N4746, 18V
32
1
50C +O.5V
90C +8V
SHUTDOWN DETECTORS
CLIP RECTIFIER-BUFFER
IDLE -1.2V
CLIP +3V PEAKS0-3Vac NORMAL AUDIO
NEGATIVE BIAS
CONTROLLER
POSITIVE BIAS
CONTROLLER
R 941
47
C 915
J 905-4
.0022
D 952
D 954
1N4735
1N4148
6.2 V
D 955
1N4735
D 953
1N4148
321
TO MUTING
BIAS ENABLE
6.2 V
J 904
1
D 937
1N4004
C 945
2200
35V
C 946
2200
35V
7915U 905
U 910
IC-000010-00
R 931
50 OHM
25 C
C 911
.01
BIAS NETWORK
B 901
R 1007
PTC-60C
BH-100
THERMALLY
CONNECTED
TO Q 911
J 902
2
3
4
5
1
4
3
2
VR 901
100
BIAS
BIAS
D 903
1N4004
C 961
D 904
1N4004
18 Vac
18 Vac
CT
XF PTC
XF PTC
GND
-24 V
RELAY DR
THERMAL
.0033
SCHEDULE OF TEST POINTS J 905-1 THRU J 905-8
J 905-1 NEGATIVE LIMITING VOLTAGE
J 905-2 POSITIVE LIMITING VOLTAGE
J 905-3 SWITCHING THRESHOLD REFERENCE VOLTAGE
J 905-4 AMPLIFIER LOOP OPAMP OUTPUT
J 905-6 SWITCHED POS AMPLIFIER RAIL--HIGH VOLTAGE
J 905-8 SWITCHED NEG AMPLIFIER RAIL--HIGH VOLTAGE
PCB NUMBER DESCRIPTION CH 1 PARTS CH 2 PARTS PARTS IN COMMON
PC-004001-00
PC-004002-00
PC-004003-00
PC-004004-00
PC-004200-00
DISPLAY PCB
INPUT PCB
AC PCB
SPKR PCB
AMP CHANNEL
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)
D 951
7.5V
U 902-B
D 965
7.5V
J 905-3
U 906
IC-000008-00
SCHMIDTT COMPARATOR
REF VOLTT2LOW RAIL
T1
U 907
IC-000008-00
SCHMIDTT COMPARATOR
REF VOLTT2LOW RAIL
T1
C 956
220p
+15 V
8
5
6
4
-15 V
R 995 C 955
A
2.7K
T1
REF VOLT
SCHMIDTT
COMPARATOR
U 908
IC-000009-00
T1
REF VOLT
SCHMIDTT
COMPARATOR
U 909
IC-000009-00
SPEAKER BUS
7
SWITCHING THRESHOLD
.0022
T2
T2
HIGH RAIL
T9
GATE
SOURCE REF
HIGH RAIL
GATE
SOURCE REF
T8
T7
T9
T8
T7
2SA1302
AUDIO OUTPUT STAGE
+94 V RAIL
+46 V RAIL
U 902-A
5532
R1001
15K
REFERENCE
1
C
D
RN 910
1K-4
LOSS-OF-SAT
SHUTDOWN
T3
LOSS-OF-SAT
SHUTDOWN
T3
3
2
B
A
SHUTDOWN
SHUTDOWN
C 963
.0022uF
200V
R 947
332
R 943
750K
R 944
750K1K1K
R 948
332
GATE DRIVER
SLEW NEG SUPPT6BOOTSTRAP CAP
T4
T5
GATE DRIVER
SLEW NEG SUPPT6BOOTSTRAP CAP
T4
T5
J 905-6
200 V
D 922
R 1002
47
D 923
1N4148
D 921
1N5956B
R 945
1N4148
R 946
D 924
1N5956B
200 V
C 903 47-50V
C 904 47-50V
R 927
22-1W
Q 905 Q 906 Q 907 Q 908 Q 909 Q 910
Q 933
2SC3298B
R 937
4.7-1W
R 938 R 939
4.7-1W
Q 934
2SA1306B
Q 911 Q 912 Q 913 Q 914 Q 915 Q 916
22-1W
J 905-8
-46 V RAIL
T3
LOW RAIL
-94 V RAIL
LOW RAIL
SHUTDOWN
LOSS-OF-SAT
SHUTDOWN
T3
SHUTDOWN
LOSS-OF-SAT
SHUTDOWN
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 B 901, 1.5A, 100V.
4. R 1007 IS POSITIVE TEMPERATURE COEFFICIENT RESISTOR MOUNTED TO HEAT SINK.
RESISTANCE 100 OHM COLD, RISING AT 55 C. QSC P/N RE-000006-PTPART NUMBERING SCHEDULE FOR PCBS USED IN EX-4000:
5. Q 901-904, 917-920 ARE SWITCHING FETS. QSC P/N QD-000013-QD OR QD-000031-QD.
125 W, 60 V MINIMUM, ON-RESISTANCE 0.030 OHMS MAX.
6. ZENERS D 951, 965 MARKED 7.5 V TESTED FOR LOW LEAKAGE, QSC P/N QD-0007.5-ZT.
7. ZENERS D 952, 955, 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.
10. Q 933 AND Q 934 MUST BE INSULATED FROM THIER HEATSINK (WHICH ARE CONNECTED TO GROUND).
T4
SLEW
GATE DRIVER
T4
SLEW
GATE DRIVER
GATE PWR
GATE
SOURCE REF
SOURCE REF
GATE PWR
GATE
SOURCE REF
SOURCE REF
-46 -94 -142 V SWITCHED BUS
T5
T6
T7
T5
T6
T7
+142 V RAIL
R 901 22 FP
R 902 22 FP
R 911 22K-1W
R 906 22 FP
R 904
R 917 22K-1W
+46 +94 +142 V SWITCHED BUS
6 PL
4.7 FP
2SC3281
6PL
R 956
3K-2W
R 960 22 FP
C 924
470-10V
R 962
3K-2W
R 963
R 964
C 921
470-10V
-142 V RAIL
D
GS
D
Q 901
GS
Q 902
C 901
.10
D
GS
D
22 FP
R 930R 926R 928R 925R 924
22 FPR 959
22 FP
22 FP
GS
R 910
2.7-2W
R 929
.22-3W
6 PL
D 907
1N5402
HEATSINK
GROUND
C 912
D 908
IN5402
R 954R 953R 951R 952R 950R 949R 955
.22-3W
6 PL
MUR1510
R 958 C 917
2.7-2W
GS
D
GS
C 920 R 961
GS
D
GS
Q 903
Q 904
.10
D 905
D
Q 918
D 906
MUR1510
.10 2.7-2W
D
WP-004202-01 SVC CH MOD
WP-004202-00
APPLICATION
R 903
2.7-2W
D 901
MUR1510
D 902
MUR1510
3.9-2W
Q 917
Q 919
Q 920
C 902
R 932
.10
.10
C 933
C 934
15000-50V
2 PL
C 931
C 932
15000-50V
2 PL
15000-50V
L 901
R 933
R 934
C 935
C 936
15000-50V
2 PL
C 937
C 938
15000-50V
2 PL
C 939
C 940
15000-50V
2 PL
EX 4000B
USED ONNEXT ASSY
C 929
C 930
2 PL
2uH
10-2W
4 PL
C 913
.10
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
DIMENSIONS PER ANSI Y14.5-1982
.XX .XXX
DEBURR EDGES .XXX R MAX
R 935
R 936
R 976
3K-2W
+
-
J 901
10
7
4
1
3
8
11
2
5
6
9
12
TOLERANCES ARE:
TRANSFORMER
CENTER TAP
SPEAKER
OUTPUT
SPEAKER
COMMON
DECIMALS
+
-
L
G.
SH-0040000-00
1
U
AUDIO PRODUCTS, INC.
ANGLESDECIMALS
O
1/2.02 .010
+
-
SGM
SG MORALES
11-01-91
6-22-94
D
SCHEMATIC EX 4000B
AMPLIFIER CHANNEL
NONE
SH-004000-00
SH4000U1.FCDSH4000T1.FCD
U
Page 2
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
DATE
APPROVED
A PROD RELEASE PER ECO 2297 WR
D
C
D
C
B
B
TAB BLOCK
DASH NO. DESCRIPTION
-00 CHAN 1 & 2
-01
-02
CHAN 1
CHAN 2
MPA1100, MPX1200, EX 4000
MPA750, EX 2500
MPA750, EX 2500
USED ON
PARTS LIST
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
A
NOTES: UNLESS OTHERWISE SPECIFIED
4
3
XX
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
1/2.02 .010
+
-
O
APPROVALS
DRAWN
Warren R. 5-13-94
CHECKED
ISSUED
CAD SEED FILE NO.
DATE
SIZE
FSCM NO. DWG NO. REV
C
SCALE
NONE SH0040A1.FCD
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
SCHEMATIC, BRIDGE
RECTIFIER PCB
SH-000040-XX A
CAD FILE NO.
SHEET
A
1 OF 1
1
Page 3
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
C 402 C 401
470 p 470 p
R 32 24K
3-POS
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
Page 4
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
A
B
REVISED PER ECO 2201 (EFF 8-5-94)
REV PER ECO 2699 (EFF. 8-18-95)
C
DATE
L
5-18-93
G.
6-15-94
APPROVED
SGM
SGM
D
SCHEMATIC FOR PC-004003-00 REV B
D
PC TERMS
FUSE
SWITCHED AC
501
508
50
51
52
F501
SEE
TAB BLK
C
AC LO
57
B
SWITCHED AC
601
R 601
SEE
TAB BLK
C 501
.068
250 VAC
R 50
SEE
TAB BLK
C 601
.068
250 VAC
FUSE
F601
SEE
TAB BLK
R 501
SEE
TAB BLK
506
507
504
505
509
502
503
53
54
55
56
60
58
59
602
603
604
605
606
607
MODEL (V)
MX 2000a (100V)
MX 2000a (120V)
MX 2000a (230V)
EX 2500 (100V)
EX 2500 (120V)
EX 2500 (230V)
EX 4000 (100V)
EX 4000 (120V)
TABULATION BLOCK
FUSE
15A 250V
15A 250V
12A 250V
20A 250V
12A 250V
20A 250V
R 50 R 501 / R 601
330 15W
330 15W
470 15W
C
1.0 OHM COLD 30A
1.0 OHM COLD 30A
2.5 OHM 15A
1.0 OHM COLD 30A20A 250V
1.0 OHM COLD 30A
2.5 OHM 15A
1.0 OHM COLD 30A20A 250V
1.0 OHM COLD 30A
B
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
A
1. THIS DRAWING USED IN CONJUNCTION WITH SCHEMATIC DIAGRAMS :
SH-004000-00, SH-004001-00, SH-004002-00, SH-004003-00, SH-004004-00,
SH-004006-00, SH-002500-00, SH-002010-00, AND SH-002011-00
NOTES: UNLESS OTHERWISE SPECIFIED
4
3
PC-004003-00 EX 3 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 5-10-93
CHECKED
SGM 5-17-93
ISSUED
CAD SEED FILE NO.
DATE
SIZE
5-18-93SG MORALES
FSCM NO. DWG NO. REV
C
SCALE
NONE 1 OF 1
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
SCHEMATIC,
AC PCB EX/MXa 3 SP
SH-004005-00
CAD FILE NO.
SH4005C1.FCDSH4005B1.FCD
SHEET
A
C
1
PARTS LIST
Page 5
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
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