QSC MX2000a Manual do Utilizador
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1.
DISPLAY PCB
INPUT PCB
101-199 201-299
301-399 401-499 31-49
501-599
PCB NUMBER DESCRIPTION CH 1 PARTS CH 2 PARTS PARTS IN COMMON
SCHEDULE OF TEST POINTS ETC
1K
1N4934
4.7V
1N4744A-15V
+15 V-OPAMP
1N4744A-15V
-15V-OPAMP
4.7V
1K
1N4744A-15V
PC-001511-00
PC-001512-00
8
4
+15 V
-15 V
A
21.5K-.5W
.0022
A
A
10-29
8.2K-2W
8.2K-2W
8.2K-2W
8.2K-2W
8.2K-2W
8.2K-2W
PC-004003-00 601-699 51-69
PC-002010-00 AMPLIFIER PCB 901-UP (SAME BOARD FOR CH 1, CH2)
AC PCB
8.2K-2W
8.2K-2W
22-1W
2SA1302
2SC3281
22-1W
2SA1306B
2SC3298B
SPEAKER BUS
AUDIO OUTPUT STAGE
22 FP
3K-2W
SOURCE REF
T7
T8
GATE
SOURCE REF
GATE DRIVER
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
COMPARATOR
BIAS
NETWORK
12K
12K
+58 V RAIL
-58 -110 V SWITCHED BUS
-58 V RAIL
-110 V RAIL
1N5955A
1N5955A
1N4148
1N4148
5532
AUDIO INPUT STAGE
A
3.3-1W
1. BOARD SHIPPED WITH W 301-304, W 401-404 MOUNTED AS SHOWN.
2. PARTS WITHIN DOTTED OUTLINE FOR USER MODIFICATION. SEE MANUAL.
INPUT PCB NOTESINPUT PCB NOTES
TO +58 V
1N4934
7.5K-2W
R 101
HEAVY LINE SHOWS
MAIN SIGNAL PATH
GAIN SEND
GAIN RETURN
GAIN GROUND
CLIP SEND
GAIN
CH B
VR 201
GAIN RETURN
GAIN GROUND
GND
-INPUT
GAIN SEND
PROT-RED
PWR-GRN
CH A
CH A
A
GND
GND
PROT-RED
PWR-GRN
CH B
CH B
+INPUT A
-INPUT A
V+ CH A
SPKR SIG CH A
SPEAKER BUS
-30
A
CH 1 +IN
J 301
J 31
CH 1 -IN
GND
CH 2 -IN
CH 2 +IN
A
J 401
C 402 C 401
Tip
Ring
Gnd
1/4" RTS
BARRIER STRIP
1/4" RTS
EXPANDER
PADS
INPUTS
PARALLEL
MONO
BRIDGE
STEREO
C 301 C 302
INPUT JACK
T 401
1 (1)
3 (4) 6 (8)
4 (5)
W 401
W 402
T 301
3 (4)
1 (1) 4 (5)
6 (8)
W 302
W 301
PADS FOR INPUT
ACCESSORY PCB
PIN 1 V+A
PIN 2 SP-A
PIN 3 GND
W 303
W 304
PIN 8 GND
PIN 4 +1N A
PIN 5 +OUT A
PIN 6 -IN A
PIN 7 -OUT A
PIN 9 CLIP
CLIP A
LD
CLIP
RED
A
C 101
SPEAKER BUS
-INPUT
CH B
YEL
SIG GND
-30 LED
RELAY CKT
1
2
3
4
5
6
7
C 201
V- CH B
8 X 2 PIN HEADER
KEY
W 403
W 404
PIN 10 V-A
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
CLIP-B
A
9
10
V+A
R 103
103
LD 101
LD 104
V-B
LD 201
LD 204
LD 202
V+B
A
A
A
J 32
A
R 32
J 33 J 10
16-LINE
IN5402
2.7-2W
D
GS
.10
D
GS
22 FP
2.7-2W
.10
MUR 810
MUR 810
QD-000031-QD
QD-000031-QD
2uH
5.6-2W
.10
TO RECT
SPEAKER OUTPUT
SPEAKER COMMON
NC
NO
QSC PART
SW-000029-SW
TRANSFORMER CENTER TAP
10K-2W
100K
220 NP
1N4004
UTIL
1N4004
SPKR-BUS
1N4004
100K
+110 V RAIL
12000-63V 2PL
12000-63V 2PL
12,000-63V 2PL
12-PIN MATE-LOK
1
4
2
3
7
10
11
5
6
1N5402
10-2W
10-2W
TO -110 V RAIL
TO -58 V RAIL
390K
390K
HEATSINK
GROUND
+58 +110 V SWITCHED BUS
.22-3W
5 PL
5 PL
.22-3W
HEATSINK
GROUND
5 PL
5 PL
3
2
1
10K10K
5
6
7
100
BIAS
25 C
.01
50 OHM
BIAS
12
XF-PTC
9
100K
100K
270
-58 V
U 903-A
RN 902-B RN 902-A
C 923
C 924
R 950
R 926
R 928
R 927
R 929
U 901
R 920R 956
D 920
D 922
D 923C 928
J 903-2
C 925
R 954
R 945
R 916
J 901
BR 901
BR 902
C 903, 904
C 905, 906
K 901
L 901
D 901
D 904
C 907
R 906
Q 906
U 903-B
R 952 R 955
C 927
C 926
C 930
J 903-4
D 903
R 921
C 908
VR 901
D 910
D 906
D 908
D 907
D 909
J 903-6
R 917
R 922
J 903-8
Q 907
R 907
R 908
Q 908
R 939
Q 901 Q 902 Q 903 Q 904 Q 905
R 901 R 902 R 903 R 904 R 905
Q 910 Q 911 Q 912 Q 913 Q 914
R 910 R 911 R 912 R 913 R 914
D 911
R 944
R 943
R 942
R 932
BR 903
C 918 D 914
R 935
C 919
R 934 D 916
RN 901-D
RN 901-C
Q 917
2N4410
Q 916
2N2907
R 933
LD 901
R 936
R 938
RN 901-B
RN 901-A
D 915
2N4410
Q 915
C 913, 914
D 905
R 909C 909
Q 909
C 911, 912
R 925
R 923
C 915
D 919
R 957
C 916
R 924
D 912
U 902
J 903-1
C 929 D 924
J 101 J 902 (CH A)
J 201 J 902 (CH B)
C 921
C 920
COMPONENT LAST USED
BRIDGE RECTIFIER
CAPACITOR
DIODE
INDUCTOR
LED
TRANSISTOR
RESISTOR
CONNECTOR
VARIABLE RESISTOR
BR 903
J 903
L 901
LD 901
Q 917
R 957
VR 903
10. BRIDGE RECTIFIER BR 101, 201, 903, 1.5A, 100V.
PART NUMBERING SCHEDULE FOR PCBS USED IN MX-2000-A:
R 948
R 946
R 949
R 947
BR 902
TO RECT BR 901
LAST USED REFERENCE DESIGNATORS, PC-002010-00
PC-002010-00 AMPLIFIER PCB, CH BPC-002010-00 AMPLIFIER PCB, CH B
J 901, CH B
CONNECTIONS TO CH B PCB
SAME AS TO CH A.
CONNECTIONS TO CH B PCB
SAME AS TO CH A.
1
4
2
3
7
10
11
5
6
8
9
12
SCHMITT COMPARATOR
SCHMITT
R 31
20 K
24 K
C 31
220 pF
SPKR GND
432
SPKR GND
C 202
.0033
+INPUT
1K
10K
RN 902-C
R 951
10K
RN 902-D
A
C 922
-30 LED
-30
YEL
LD 102
C 102
.0033
R 919
3K-2W
.001
R 915 PTC 90-C
C 901 47-50V
1N4744A-15V
D 902
C 902
.001
1N4934
3.3-1W
3.3-1W
1N4934
1N4934
2K
2K
D 918
VR 903
VR 902
D 917
LIM-LIM-
LIM+LIM+
R 918 22K-1W
2 PL
12,000-63V
10-2W
10-2W
R 930
R 931
.10
C 917
SW-000031-SW
QSC P/N
SW-31
3. TRANSFORMER PIN NUMBERS: 1-6 TRIAD TY-144P (1-8 JENSEN JT 8043)
R 401
C 403
R 301
C 303
A
(6,7)
A
(6,7)
NOTES.
TOLERANCE 20% FOR ELECTROLYTIC TYPES, 10% ON OTHER TYPES.
125 W, 60 V MINIMUM, ON-RESISTANCE 0.030 OHMS MAX.
3. ALL CAPACITORS 100V UNLESS NOTED.
2. ALL RESISTORS 1/4-WATT, 5% UNLESS NOTED.
PC-001512-00 MX-A SERIES INPUT PCBPC-001512-00 MX-A SERIES INPUT PCB
PC-001511-00 MX-A SERIES DISPLAY PCBPC-001511-00 MX-A SERIES DISPLAY PCB
SINK. RESISTANCE 100 OHM COLD, RISING AT 85 C. QSC P/N RE-000000-PT.
8. PARTS MARKED WITH TRIANGLE REPLACE WITH EXACT TYPE ONLY.
9. PARTS WITHIN DOTTED OUTLINE VOLTAGES GREATER THAN 42V.
SCHEMATIC, 2-CH POWER AMPLIFIER, MX-2000-ASCHEMATIC, 2-CH POWER AMPLIFIER, MX-2000-A
J 903-1
J 903-1 NEGATIVE LIMITING VOLTAGE
J 903-2 POSITIVE LIMITING VOLTAGE
J 903-3 NOT USED
J 903-4 AMPLIFIER LOOP OPAMP OUTPUT
J 903-6 SWITCHED POS AMPLIFIER RAIL--CAUTION, HIGH VOLTAGE
J 903-8 SWITCHED NEG AMPLIFIER RAIL--CAUTION, HIGH VOLTAGE
PC-002010-00 AMPLIFIER PCBPC-002010-00 AMPLIFIER PCB
1. CH B IDENTICAL TO CH A.
4. R 915 IS POSITIVE TEMPERATURE COEFFICIENT RESISTOR, MTD TO HEAT
5. Q 906, 909 ARE SWITCHING FETS. QSC P/N QD-000031-QD.
6. ZENER D 913, MARKED 7.5 V, LOW LEAKAGE, QSC P/N QD-0007.5-ZT.
7. BRIDGE RECTIFIER BR 901, 902 ARE 40A, 400V, QSC P/N QD400400-BX
GND
GND
-INPUT CH B
+INPUT CH B
11
12
13
14
7.5K-2W
R 201
A
SPKR SIG CH B
V+ CH B
15
16
R 203
432
3
1
6
8
5
7
10
11
12
9
2
1
5
7
10
11
12
9
6
3
4
V-A
V- CH A
8
2
RELAY CKT
4
GAIN
VR 101
CH A
BR 101
R 102
A
47 pF
10 K
RELAY SENSE
47 pF
R 202 10 K
CLIP-RED
CH B
CLIP SEND
BR 201
+INPUT
LD 203
8
A
RELAY STATUS
D 925
D 926
1N4934
1N4934
RN 903-A-B
2.2K 2.2K
RN 903-D
2.2K
RN 903-C
2.2K
47
R 941
C 931 220pF
RESISTOR NETWORK RN 903
3K-2W
R 937
7.5 V
D 913
12K
TO PWR-PROT LED
R 940
120 K
13
14
14
13
.022
XFORM
T-7
T-11
T-8
T-10
T-9
T-12
T-13
PLOTTED AT SCALE-TO-FIT, .625
Tip
Ring
Gnd
470 pF 470 pF
470 pF 470 pF
10K
10K
68 pF
68 pF
220-25V
47NP-10V
18 pF
280-1% 60.4 K
200V
220-25V
1W
1W
470-16V
10V
220-1W47-50V
10-35V
RE-000000-VP
SGM
680-5W
APPLICATION
USED ONNEXT ASSY
TOLERANCES ARE:
DECIMALS
ANGLESDECIMALS
DIMENSIONS PER ANSI Y14.5-1982
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
-
+
O
-
+
-
+
.XX .XXX
DEBURR EDGES .XXX R MAX
AUDIO PRODUCTS, INC.
D
SGM
L
G.
NOTES : UNLESS OTHERWISE SPECIFIED
NONE
SH-002010-00
SCHEMATIC,
MX 2000a
WP-002002-00
MX 2000a
SH-002010-00
1
SGM
4.7 K
1N4934
150
R 953
D 921
C 932
.01
.10
D 926
C 932, NO C 910
SGM
D1
D1
S2010D11.FCDSH2010D1.FCD
REV D1, 3-2-94, PER PC-002010-00 REV C, PC-001511-00 REV B, PC-001512-00 REV C1
DOC NO. SH-002010-00 FILE S2010D11.FCD, SEED FILE NO SH2010D1.FCD
.047-400V
C 933
C 935
C 934
C 936
.047-400V
.047
400V
.047
400V
.047-400V
.047-400V
C 939
C 940
C 938
C 937
.047-400V
.047-400V
1
2
Resumo do Conteúdo
Página 1 - MX 2000a
1.DISPLAY PCBINPUT PCB101-199 201-299301-399 401-499 31-49501-599PCB NUMBER DESCRIPTION CH 1 PARTS CH 2 PARTS PARTS IN COMMONSCHEDULE OF T
Página 2 - DIAGRAM MX 2000a
AC LINE CORDAC LINE CORDAC LINE CORDGRN/YELAC SWITCHQSC P/N SW-000028-SW55C FAN SPEED THERMOSTATJ 33PC-001512-00 INPUT JACKSBINDING POST SPEAKER T
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