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SCHEMATIC, AMPLIFIER CHANNEL, EX 4000-B
REV U, 2-15-95, FOR PC-004200-00 REV K J 904 J 903 +24 V +15 V -15 V -24 V D 938
1 1 +24 V UNREG +15 V REG -15 V REG -24 V UNREG
U 906 IC-000008-00
SCHMIDTT COMPARATOR
J 901
HIGH RAIL +142 V RAIL
L G.
T9
D GATE
10
1N4004 1N4004 1N4004 1N4004
18 Vac
LOSS-OF-SAT GATE DRIVER SHUTDOWN
R 901 T8 R 902
22 FP
G S D G S
C 933 C 934 15000-50V 2 PL
D 942
3
U 904 C 954 100 25 V C 953 100 25 V
7815
3 2
1
D 937 1N4004 C 945 2200 35V
B 901
2
22 FP
Q 901 Q 902
D 941
4
18 Vac
SOURCE REF
D 947
2
D 940 1N4746, 18V D 939 1N4746, 18V
T7
3
CT XF PTC XF PTC T1
REF VOLT
LOW RAIL
SHUTDOWN
SLEW
NEG SUPP
BOOTSTRAP CAP
C 901 .10
R 903 2.7-2W
D 936 1N4004 C 941 10-25V R 982 470-1W
C 946 2200 35V
2 4 5
T2
T3
T4
T5
T6 C 903 47-50V R 911 22K-1W D 901 MUR1510
3 1
U 905
7915 J 902
+94 V RAIL 1 4 3
GND -24 V RELAY DR THERMAL
LOSS-OF-SAT GATE DRIVER SHUTDOWN SOURCE REF
U 907 IC-000008-00
SCHMIDTT COMPARATOR
HIGH RAIL
T9
D GATE 7
MUTING INPUT CAP.
C 943 47-35V C 944 47-35V
T1 T2 T3
RELAY TIMING CAP.
ON-OFF MUTING DELAY SHUTDOWN MUTING RELAY MUTING BUS MUTE +8V RUN 0V
U 910 IC-000010-00
2
R 906 T8 R 904
22 FP
G S D G S
C 931 C 932 15000-50V 2 PL
22 FP
GROUND
MUTE -24V RUN +15V
Q 903 Q 904
R 1007 PTC-60C BH-100
THERMALLY CONNECTED TO Q 911 REF VOLT LOW RAIL SHUTDOWN SLEW NEG SUPP BOOTSTRAP CAP
T7 R 910 2.7-2W
T4 MUTE
10 TO +15V
DRIVER
C 902 .10
MUTE BUS
T5
THERM ADJUST, 0.5-8.5V
T1
T2
T3
T4
T5
T6 C 904 47-50V R 917 22K-1W D 902 MUR1510
R 987 330K
T6 R 989 60.4K THERMAL SENSING
THERMAL SENSE, 0-8V
50C +O.5V 90C +8V
D 951 7.5V
+46 V RAIL
T7
THERMAL BUS, 0-8V
PROCESSING BUFFER
THERMAL
8
T8 R 996 C 952 220-16NP 27K T9
DC PROTECT SENSE OP-AMP OUT - HF PROTECT
SPEAKER BUS
J 905-3 SHUTDOWN DETECTORS THERMAL HIGH FREQ DC RECTIFIER
THERMAL LIMITING
C 963 .0022uF 200V
+46 +94 +142 V SWITCHED BUS
J 905-6 R 927 22-1W R 924 R 925 R 928 R 926 R 930 R 929 .22-3W 6 PL D 907 1N5402 C 929 C 930 2 PL 15000-50V L 901 2uH
4
T10 R 994 10K-2W T11
OP-AMP OUT
TO MUTING R 931 CLIP RECTIFIER-BUFFER 50 OHM 25 C
VR 901 100 BIAS U 902-B
5
C 956 220p
+15 V 8 7
U 902-A 5532
1
1 3
3 2
LIMITING THRESHOLD +4.5V 0-3Vac NORMAL AUDIO 4.5-6.5Vac CLIPPING PEAKS
T12
OPTOCELL
IDLE -1.2V CLIP +3V PEAKS MUTE +4.5V
R1001 15K
SWITCHING THRESHOLD
R 947 332 R 943 750K
D 921 1N5956B 200 V
R 1002 47
TRANSFORMER CENTER TAP
Q 905 Q 933
Q 906
Q 907
Q 908
Q 909
Q 910
2SC3298B R 945 1K D 922 1N4148 R 937 4.7-1W
2SA1302 6 PL
AUDIO OUTPUT STAGE HEATSINK GROUND
8
T13
CLIP BUS
C 911 .01 D 903 1N4004
6 4 -15 V
R 933
11
SPEAKER OUTPUT
REFERENCE C
D 923 1N4148
R 934 10-2W 4 PL C 913 .10 R 935 R 936
2 5 SPEAKER COMMON
CLIP
11 TO +15 V
T14
+15 V BIAS NETWORK
A
R 995 2.7K
C 955 .0022
D B
R 944 750K R 948 332
R 946 1K
R 938 4.7-1W Q 934
R 939 4.7 FP 2SC3281 6PL Q 913 Q 914 Q 915 Q 916
T15
-15 V
R 932 3.9-2W C 912 D 908 IN5402 R 954 .22-3W 6 PL .10
J 905-1 C 960 470-10V
TO -15 V
T16
NEGATIVE BYPASS, -7.5V NORMAL, -2.5V SHORT
C 961 .0033 D 904 1N4004 NEGATIVE BIAS CONTROLLER
RN 910 1K-4 A
D 924 1N5956B 200 V
2SA1306B Q 911 Q 912
T17
NEGATIVE CURRENT FEEDBACK, -3V PEAK
R 1000 10K-2W VR 903 5K +CURR LIM VR 902 5K -CURR LIM
T18
NEGATIVE TRIMMER
R 955 22-1W J 905-8
R 949
R 950
R 952
R 951
R 953
C 935 C 936 15000-50V 2 PL
R 976 3K-2W
T19
OUTPUT VOLTAGE FEEDBACK
T20
POS CURRENT TRIMMER
LOAD IMPEDANCE SENSING
D 965 7.5V BIAS ENABLE
-46 -94 -142 V SWITCHED BUS
-46 V RAIL
R 956 3K-2W
D 905 MUR1510 R 958 2.7-2W C 917 .10
6
T21
POSITIVE CURRENT FEEDBACK +3V PEAK
POSITIVE BIAS CONTROLLER
T1
REF VOLT
T2
LOW RAIL
T3
SHUTDOWN
T4
GATE PWR SLEW
T22
POSITIVE BYPASS, +7.5V NORMAL, +2.5V SHORT
T5
D GATE
T23 R 959 T6
SCHMIDTT COMPARATOR POSITIVE DRIVER, +0.6V IDLE SHUTDOWN G S SOURCE REF LOSS-OF-SAT GATE DRIVER
22 FP 22 FP
D G S
C 959 470-10V GND GND GND
6 5 12
J 905-2
NEGATIVE DRIVER, -0.6V IDLE
Q 917 Q 918 D 906 MUR1510 C 937 C 938 15000-50V 2 PL
9
T24 T25
R 960 C 924 470-10V T7
U 908 IC-000009-00
A
-94 V RAIL
C 920 .10
R 961 2.7-2W
SH-0040000-00
R 988 10K-2W SPKR SIG
SPEAKER BUS 13
T1 C 914 18p
REF VOLT
T2
LOW RAIL
T3
SHUTDOWN
T4
GATE PWR SLEW
R 962 3K-2W T5 R 963 R 964 T6 22 FP
G D S
R 992 470-1W A
Q 919 Q 920 C 939 C 940 15000-50V 2 PL
C 951 47-16NP
R 940 30.0K-.5W
SCHMIDTT COMPARATOR SHUTDOWN LOSS-OF-SAT GATE DRIVER
GATE
22 FP
G
D S
C 921 470-10V
SOURCE REF
A
HEAVY LINE SHOWS MAIN SIGNAL PATH
R 990 6.8K
A
R 993 412
RN 909 10K-4
B
C 916 .15
R 942 75K R 941 47
SCHEDULE OF TEST POINTS
J 905-1
THRU
J 905-8
U 909 IC-000009-00
1
T7
-142 V RAIL
12
J 905-1 NEGATIVE LIMITING VOLTAGE J 905-4 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
+INPUT
14 +15 V
U
A U 903 VTL 5C4
3 2 1
C 915 .0022 U 901-A
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-PT 5. Q 901-904, 917-920 ARE SWITCHING FETS. QSC P/N QD-000013-QD OR QD-000031-QD. 1-29 31-49 51-69 71-99 125 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. HAVE VOLTAGES GREATER THAN 42V.
DECIMALS
.XX
U 901-B 5532
8 5 6 7 4 -15 V
AUDIO INPUT STAGE
R 991 590
A GND REF
9 C D
D 952 1N4735 6.2 V
D 954 1N4148
J 905-8 SWITCHED NEG AMPLIFIER RAIL--HIGH VOLTAGE
PART NUMBERING SCHEDULE FOR PCBS USED IN EX-4000: D 953 1N4148 D 955 1N4735 6.2 V PCB NUMBER PC-004001-00 PC-004002-00 PC-004003-00 PC-004004-00 PC-004200-00 DESCRIPTION INPUT PCB AC PCB SPKR PCB AMP CHANNEL CH 1 PARTS CH 2 PARTS PARTS IN COMMON 101-199 301-399 501-599 701-799 201-299 401-499 601-699 801-899 DISPLAY PCB
R 923 47K-1W PWR-ON
7 TO +46 V RAIL
C 962 10 pF C 957 68 p
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES. DIMENSIONS PER ANSI Y14.5-1982 TOLERANCES ARE: DECIMALS
.XXX
AUDIO PRODUCTS, INC.
ANGLES
O
901-UP (SAME BOARD FOR CH 1, CH2)
9. PARTS ENCLOSED WITHIN DOTTED OUTLINE
10. Q 933 AND Q 934 MUST BE INSULATED FROM THIER HEATSINK (WHICH ARE CONNECTED TO GROUND).
+ - .02
+ - .010
+ - 1/2
DEBURR EDGES .XXX R MAX
WP-004202-01 WP-004202-00
SVC CH MOD EX 4000B
USED ON
SGM SG MORALES SH4000T1.FCD
11-01-91 6-22-94
SCHEMATIC EX 4000B AMPLIFIER CHANNEL
D
NONE
NOTES: UNLESS OTHERWISE SPECIFIED
NEXT ASSY
SH-004000-00
SH4000U1.FCD
U
APPLICATION
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
PROD RELEASE PER ECO 2297 WR
D
D
C
C
B
B
TAB BLOCK DASH NO. -00 -01 -02 DESCRIPTION CHAN 1 & 2 CHAN 1 CHAN 2 USED ON MPA1100, MPX1200, EX 4000 MPA750, EX 2500 MPA750, EX 2500
PARTS LIST
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES. CONTRACT NO.
A
DIMENSIONS PER ANSI Y14.5-1982 TOLERANCES ARE: DECIMALS DECIMALS ANGLES O APPROVALS DATE
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
A
.XX
+ - .02
.XXX
+ - .010
+ - 1/2
DRAWN
DEBURR EDGES .XXX R MAX MATERIAL CHECKED
Warren R.
5-13-94
SCHEMATIC, BRIDGE RECTIFIER PCB
SIZE FSCM NO. DWG NO. REV
X
X
USED ON
FINISH
ISSUED
NOTES: UNLESS OTHERWISE SPECIFIED
NEXT ASSY
CAD SEED FILE NO.
C
SCALE
SH-000040-XX
NONE
CAD FILE NO.
A
APPLICATION
DO NOT SCALE DRAWING
SH0040A1.FCD
SHEET
1 OF 1
4
3
2
1
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 3 1
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 PIN 4 +1N A 6
C 301 470 p T 301
1 (1) 4 (5) 6 (8)
R 301
(6, 7)
W 304 W 303
A
A C 303
W 305
PIN 5 +OUT A PIN 6 -IN A
1
3 (4)
A J 31 CH 1 +IN
SHIPPED XLR PIN 2 HI MOVE W 303, 304 TO ALT POSITION FOR PIN 3 HI
W 306 W 302 NC R 31 20.0 K R 32 24K C 31 220p
PIN 7 -OUT A PIN 8 GND PIN 9 CLIP
2
-INPUT CH 1
J 33 CH 1 -IN
22 PIN 10 V-A 12 KEY PIN 11 V- B PIN 12 CLIP B 10 9
CH 1 CLIP-LIM -15 V REG -24 V +24 V CH 2 CLIP-LIM GND GND -INPUT CH 2
C
GND CH 2 -IN CH 2 +IN
A
INPUTS PARALLEL CENTER STEREO
MONO-BRIDGE
A
C
SW 31 3-POS
W 401 NC
PIN 13 GND
21 8 7 PIN 14 -0UT B 3 PIN 15 -IN B
J 401 XLR
2 3 1
W 403 W 404 C 402 A
SHIPPED XLR PIN 2 HI MOVE W 303, 304 TO ALT POSITION FOR PIN 3 HI
T 401
3 (4) 1 (1) 6 (8) 4 (5)
R 401
(6, 7)
W 406
A W 405 C 403
PIN 16 +OUT B 5
+INPUT CH 2 GND GND CH 2 SPKR SIG
C 401 470 p W 402
PIN 17 +IN B 14 PIN 18 GND
470 p
A
PIN 19 SP-B PIN 20 V+B PIN 21 SPARE PIN 22 SPARE
13
15
18
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
A
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
DATE
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 5. SW-31 WAS REVISED ON PC-004005-00 REV A, BUT WILL NOT AFFECT FUNCTION OF UPPER SLOT PCB.
TOLERANCES ARE: DECIMALS DECIMALS ANGLES O APPROVALS
A
.XX
+ -
.XXX
+ -
+ DRAWN
DEBURR EDGES .XXX R MAX MATERIAL CHECKED
PAT QUILTER
6-18-90
SCHEMATIC DIAGRAM EX SERIES STANDARD, INPUT BOARD
SIZE FSCM NO. DWG NO. REV
PC-004005-00
EX/MPA SERIES
USED ON
FINISH
ISSUED
NOTES: UNLESS OTHERWISE SPECIFIED
NEXT ASSY
CAD SEED FILE NO.
C
SCALE
SH-004002-00
NONE
CAD FILE NO.
D
1 OF 1
APPLICATION
DO NOT SCALE DRAWING
SH40002C1.FCD
SH4002D1.FCD
SHEET
4
3
2
1
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 C
PROD RELEASE PER ECO 1846 REVISED PER ECO 2201 (EFF 8-5-94) REV PER ECO 2699 (EFF. 8-18-95)
L G.
5-18-93 6-15-94
SGM SGM
D
SCHEMATIC FOR PC-004003-00 REV B
D
PC TERMS
SWITCHED AC
FUSE F501
R 501 506
501 508 SEE TAB BLK SEE TAB BLK
507 504 505
50 51 52
C 501 .068 250 VAC
509 502 503
TABULATION BLOCK MODEL (V)
MX 2000a (100V) MX 2000a (120V)
C
FUSE
15A 250V 15A 250V 12A 250V 20A 250V 20A 250V 12A 250V 20A 250V 20A 250V
R 50
330 15W 330 15W 470 15W
R 501 / R 601
1.0 OHM COLD 30A 1.0 OHM COLD 30A 2.5 OHM 15A 1.0 OHM COLD 30A 1.0 OHM COLD 30A 2.5 OHM 15A 1.0 OHM COLD 30A 1.0 OHM COLD 30A
C
AC LO
53 54 R 50 SEE TAB BLK 55 56 60 58 59 602 C 601 .068 250 VAC 603 604 R 601 FUSE F601 605 606 SEE TAB BLK SEE TAB BLK 607
MX 2000a (230V) EX 2500 (100V) EX 2500 (120V) EX 2500 (230V) EX 4000 (100V) EX 4000 (120V)
57
B
SWITCHED AC
B
601
PARTS LIST
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES. CONTRACT NO.
A
DIMENSIONS PER ANSI Y14.5-1982 TOLERANCES ARE: DECIMALS DECIMALS ANGLES O APPROVALS DATE
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
A
.XX
+ -
.XXX
+ -
+ DRAWN
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
DEBURR EDGES .XXX R MAX MATERIAL CHECKED
LEORA SGM
5-10-93 5-17-93
SIZE FSCM NO.
SCHEMATIC, AC PCB EX/MXa 3 SP
DWG NO. REV
PC-004003-00
EX 3 SP
USED ON
FINISH
ISSUED
NOTES: UNLESS OTHERWISE SPECIFIED
SG MORALES
5-18-93
NEXT ASSY
CAD SEED FILE NO.
C
SCALE
SH-004005-00
NONE
CAD FILE NO.
C
1 OF 1
APPLICATION
DO NOT SCALE DRAWING
SH4005B1.FCD
SH4005C1.FCD
SHEET
4
3
2
1
SCHEMATIC, EX-SERIES DISPLAY BOARD.
PC-004001-00, REV A. J 1 26-PINS
AC RELAY 1 AC RELAY 2 +24V -24V REG. +15V 25 26 10 9 12
A PROD REL PER ECO 756 B REVISED PER ECO 1603 WR
6-19-90 9-29-92
J101, 201 14-PINS
2 1 4 +24V UNREG -24V UNREG +15V REG
C101 RN101 10K D(C)
- INPUT 1
100p 10K C(D)
8
U101 A 5532 U101 B 5532 VR101
7 4 3
C107 4.7uf NP
C2 10uf
+
R110 4.7K 10K GAIN
2
13 1 10
TO AMP +INPUT TO AMP -INPUT
R102 1K 10K B
6 5
+ INPUT
2
10K A
SIG. GND SIG. GND 3
R103 1K
R104 536
C102
5
100p A
C1 + 10uf
11 SIG. GND
REG. -15V THERM BUS, 0-8V
11 23
3 7
-15V REG THERM BUS 0-8V
Q103 2N4410 R112 1.5K
PWR-ON, 0-15V SPKR SIGNAL, 5V PK CLIP-LIM BUS, 0-4V MUTE BUS, 0-8V 19 15 21 17 8 Vcc SENSE R
+ C108 10uF
R111 1.5K
14 12 9 SPKR SIGNAL, 5V PK CLIP-LIM BUS, 0-4V MUTE BUS, 0-8V
R105 LEVEL LD104 YEL -30 BA6124 RN103 1K-D LD105 GRN PWR ON 100 LD103 YEL -10
R109 3.9K 1K-D LD102 R113 634 RED LIM-CLIP 1K-B 1K-A C 109 10uF Q102 2N 4410 10K-A(D) D101 1N4004 C104 470 10V RN102 + 10K-D(A) 10K-C(B) 10K-B(C) Q101 MPS2907
RN103 1K-C 1K-B
SH-004001-00 1 B
C106 10uF
U102
R107 330K R108
1K-A R101 100
R106 10K C105 10uF
536 RN 104 1K-C
Q 104 2N 4410 C103 .0033
LD101 RED TEMP-PROT
5 6
PWR GND PWR GND
PWR GND
13
NOTES 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 4 6 7 8 24 19 16 22 18 14
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. PAT QUILTER 6-19-90
SCHEMATIC DIAGRAM EX-SERIES DISPLAY BOARD SH-004001-00 B
FCAD: 004001SH
SH4001B1.FDC
1 OF 1