NOTES: UNLESS OTHERWISE SPECIFIED
APPLICATION
USED ONNEXT ASSY
TOLERANCES ARE:
DECIMALS
ANGLESDECIMALS
DIMENSIONS PER ANSI Y14.5-1982
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
-
+
O
-
+
-
+
.XX .XXX
1/2.02 .010
DEBURR EDGES .XXX R MAX
AUDIO PRODUCTS, INC.
D
1N4148
1N4735
A
5532
10K-4
18p
75K
47
A
SPKR SIG
+INPUT
RN 909
BA
U 901-B
3
5
6
8
4
7
+15 V
-15 V
DC
GND REF
GND
C 914
R 940
R 942
C 916
C 915
R 941
U 901-A
2
1
R 991
D 953
D 952
GND
GND
PWR-ON
6.2 V
AUDIO INPUT STAGE
C 957
68 p
HEAVY LINE SHOWS
MAIN SIGNAL PATH
A R 990 R 993
A
470-1W
10K-2W
R 992
R 988
47-16NP
C 951
CLIP
10K-2W
R 1000
470-10V
C 960
470-10V
C 959
220-16NP
C 952
R 994
10K-2W
THERMAL
C 943
47-35V
C 944
47-35V
1N4004
2200
35V
PTC-60C
BH-100
D 937
C 945
R 1007
SCHEMATIC, AMPLIFIER CHANNEL, EX 4000-B
18 Vac
1
J 904
J 903
D 938
D 942
D 941
D 947
+24 V
+15 V
-15 V
-24 V
1N4004
-15 V REG
-24 V UNREG
C 954
100
25 V
+24 V UNREG
+15 V REG
THERMAL
RELAY DR
GND
-24 V
1
4
3
2
J 902
B 901
18 Vac
2
7815U 904
3
2
1
D 940
1N4746, 18V
D 939
1N4746, 18V
C 953
100
25 V
2200
35V
C 946
7915U 905
32
1
CT
3
XF PTC
XF PTC
4
5
470-1W
R 982
1N4004
D 936
1N4004
1N4004
1N4004
10-25V
C 941
TO +15 V
TO -15 V
SPEAKER BUS
47K-1W
R 923
TO +46 V RAIL
MUTE
THERMALLY
CONNECTED
TO Q 911
U 910
5K
5K
VR 903
VR 902
+CURR LIM
-CURR LIM
D
GS
Q 901
.10
C 901
2.7-2W
R 903
R 902 22 FP
D
GS
R 901 22 FP
15000-50V
2 PL
Q 902
C 933
C 934
J 901
10
U 906
+142 V RAIL
MUR1510
D 901
+94 V RAIL
D
GS
2.7-2W
MUR1510
15000-50V
2 PL
7
Q 903
Q 904
R 910
C 931
C 932
D 902
22 FP
D
GS
R 906 22 FP
U 907
+46 V RAIL
.10
C 902
15000-50V
2 PL
.22-3W
6 PL
22-1W
2SA1302
6 PL
.22-3W
6 PL
2SC3281
6PL
IN5402
22-1W
4.7-1W
4.7-1W
2SA1306B
2SC3298B
15000-50V
2 PL
.10
3.9-2W
15K
A
1K-4
2.7K
5532
1N5402
2uH
10-2W
4 PL
.10
1
2
3
4
5
6
7
8
+15 V
-15 V
A
C
D
B
U 902-A
U 902-B
C 956
R 995 C 955
RN 910
R1001
C 929
C 930
L 901
R 933
R 934
R 935
R 936
C 913
R 929
D 907
D 908
R 932
C 912
C 935
C 936
4
1
3
8
11
2
5
HEATSINK
GROUND
SPEAKER
OUTPUT
SPEAKER
COMMON
TRANSFORMER
CENTER TAP
SPEAKER BUS
R 930R 926R 928R 925R 924
R 927
Q 933
Q 905 Q 906 Q 907 Q 908 Q 909 Q 910
R 937
R 938 R 939
Q 934
Q 911 Q 912 Q 913 Q 914 Q 915 Q 916
R 954R 953R 951R 952R 950R 949R 955
+46 +94 +142 V SWITCHED BUS
AUDIO OUTPUT STAGE
-46 -94 -142 V SWITCHED BUS
SWITCHING THRESHOLD
REFERENCE
6
220p
.0022
1N4004
D 904
.0033
C 961
1N4004
D 903
VR 901
100
BIAS
25 C
R 931
.01
C 911
50 OHM
BIAS NETWORK
4.7 FP
7.5V
D 951
2.7-2W
D
GS
D
GS
MUR1510
.10
D 905
R 958 C 917
Q 917
Q 918
22 FPR 959
R 960 22 FP
R 956
3K-2W
U 908
SOURCE REF
7.5V
D 965
C 924
470-10V
15000-50V
2 PL
C 937
C 938
9
MUR1510
D 906
D
GS
D
GS
15000-50V
2 PL
Q 919
Q 920
C 939
C 940
12
C 921
470-10V
R 962
3K-2W
R 963
R 964
22 FP
22 FP
U 909
-94 V RAIL
-142 V RAIL
SOURCE REF
.10 2.7-2W
C 920 R 961
1N4148
1N4735
D 955
D 954
6.2 V
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.
PC-004001-00
PC-004002-00
PC-004003-00
PC-004004-00
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)
PCB NUMBER DESCRIPTION CH 1 PARTS CH 2 PARTS PARTS IN COMMON
.0022
-46 V RAIL
3K-2W
R 976
T 6
+15 V
T15
-15 V
T16
PROCESSING BUFFER
50C +O.5V
90C +8V
THERM ADJUST, 0.5-8.5V
THERMAL SENSING
T 1
T 3
GROUND
MUTING INPUT CAP.
TIMING CAP.
T 2
RELAY
DRIVER
T 4
ON-OFF MUTING DELAY
RELAY
MUTE -24V
RUN +15V
MUTING BUS
RUN 0V
MUTE +8V
SHUTDOWN MUTING
IC-000010-00
MUTE BUS
T 5
T 7
THERMAL SENSE, 0-8V
T 8
THERMAL BUS, 0-8V
T 9
OP-AMP OUT - HF PROTECT
SHUTDOWN DETECTORS
TO MUTING
DC PROTECT SENSE
T10
THERMAL LIMITING
T11
IDLE -1.2V
CLIP +3V PEAKS0-3Vac NORMAL AUDIO
4.5-6.5Vac CLIPPING PEAKS MUTE +4.5V
LIMITING THRESHOLD +4.5V
CLIP RECTIFIER-BUFFER
HIGH FREQ
DC RECTIFIER
THERMAL
T12
T13
T14
CLIP BUS
OP-AMP OUT
OPTOCELL
T25
POSITIVE DRIVER, +0.6V IDLE
T24
NEGATIVE DRIVER, -0.6V IDLE
T23
POSITIVE BYPASS, +7.5V NORMAL, +2.5V SHORT
POSITIVE BIAS
CONTROLLER
T22
POSITIVE CURRENT FEEDBACK +3V PEAK
T21
POS CURRENT TRIMMER
T20
OUTPUT VOLTAGE FEEDBACK
LOAD IMPEDANCE
SENSING
T19
NEGATIVE TRIMMER
BIAS ENABLE
NEGATIVE BIAS
CONTROLLER
T18
NEGATIVE CURRENT FEEDBACK, -3V PEAK
T17
NEGATIVE BYPASS, -7.5V NORMAL, -2.5V SHORT
T7
T8
GATE
SOURCE REF
GATE DRIVER
SCHMIDTT COMPARATOR
LOSS-OF-SAT
SHUTDOWN
T9
HIGH RAIL
IC-000008-00
T4
SLEW NEG SUPP
T6
BOOTSTRAP CAP
T1
REF VOLT
T2
LOW RAIL
T3
SHUTDOWN
T5
T7
T8
GATE
SOURCE REF
GATE DRIVER
SCHMIDTT COMPARATOR
LOSS-OF-SAT
SHUTDOWN
T9
HIGH RAIL
IC-000008-00
T4
SLEW NEG SUPP
T6
BOOTSTRAP CAP
T1
REF VOLT
T2
LOW RAIL
T3
SHUTDOWN
T5
T6
T7
GATE
GATE DRIVER
LOSS-OF-SAT
SHUTDOWN
IC-000009-00
T5
GATE PWR
T4
SLEW
T3
SHUTDOWN
T2
LOW RAIL
T1
REF VOLT
SOURCE REF
SCHMIDTT
COMPARATOR
T6
T7
GATE
GATE DRIVER
LOSS-OF-SAT
SHUTDOWN
IC-000009-00
T5
GATE PWR
T4
SLEW
T3
SHUTDOWN
T2
LOW RAIL
T1
REF VOLT
SOURCE REF
SCHMIDTT
COMPARATOR
SCHEDULE OF TEST POINTS J 905-1 THRU J 905-8
J 905-8 SWITCHED NEG AMPLIFIER RAIL--HIGH VOLTAGE
J 905-6 SWITCHED POS AMPLIFIER RAIL--HIGH VOLTAGE
J 905-8
4. R 1007 IS POSITIVE TEMPERATURE COEFFICIENT RESISTOR MOUNTED TO HEAT SINK.
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.
3. BRIDGE RECTIFIER B 901, 1.5A, 100V.
5. Q 901-904, 917-920 ARE SWITCHING FETS. QSC P/N QD-000013-QD OR QD-000031-QD.
SCHEMATIC, AMPLIFIER CHANNEL, EX 4000-B
+CURR LIM
-CURR LIM
BIAS
J 905-1
J 905-2
J 905-4
J 905-3
J 905-4 AMPLIFIER LOOP OPAMP OUTPUT
J 905-3 SWITCHING THRESHOLD REFERENCE VOLTAGE
J 905-2 POSITIVE LIMITING VOLTAGE
J 905-1 NEGATIVE LIMITING VOLTAGE
PC-004200-00
6.8K 412
30.0K-.5W
.15
RESISTANCE 100 OHM COLD, RISING AT 55 C. QSC P/N RE-000006-PTPART NUMBERING SCHEDULE FOR PCBS USED IN EX-4000:
C 903 47-50V
R 911 22K-1W
C 904 47-50V
R 917 22K-1W
R 989
TO +15V
R 987
590
VTL 5C4
U 903
A
7
9
14
13
12
5
6
1
3
4
2
10
8
11
27K
R 996
60.4K
330K
C 962
10 pF
750K
750K
1K
1K
332
332
1N4148
R 947
R 943
R 944
R 948
R 945
R 946
1N4148
D 921
D 923
D 922
D 924
.0022uF
200V
J 905-6
R 1002
10. Q 933 AND Q 934 MUST BE INSULATED FROM THIER HEATSINK (WHICH ARE CONNECTED TO GROUND).
47
C 963
SH-0040000-00
1
SH-004000-00
NONE
SCHEMATIC EX 4000B
AMPLIFIER CHANNEL
EX 4000B
L
G.
200 V
200 V
1N5956B
1N5956B
SGM
SG MORALES
11-01-91
6-22-94
U
U
SH4000U1.FCDSH4000T1.FCD
R 904
REV U, 2-15-95, FOR PC-004200-00 REV K
WP-004202-00
WP-004202-01 SVC CH MOD
(35 pages)
(63 pages)
(76 pages)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Commentaires sur ces manuels