58
D
C
B
A
D
C
B
A
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
QSC AUDIO PRODUCTS.
WITHOUT EXPRESS WRITTEN CONSENT FROM
BE DISCLOSED, REPRODUCED OR USED
OF QSC AUDIO PRODUCTS, THAT MAY NOT
INFORMATION WHICH IS THE PROPERTY
THIS DOCUMENT CONTAINS PROPRIETARY
SIZE FSCM NO.
DWG NO.
SCALE
CAD FILE NO.
SHEET
REV
D
DWG
NO.
REV
SH
6
J5:6
C4
470pF
^C_1206
R4
4.75K
^R_0805
N119
LD5
RED
5
J6:5
6
J6:6
P
N115
N1
14
N1
13
N1
12
R7
1.00K
^R_1206
R3
4.75K
^R_0805
3904
Q5
^Q_BJTN_SOT-23
Q4
3906
^Q_BJTP_SOT-23
Q3
3906
^Q_BJTP_SOT-23
Q2
3906
^Q_BJTP_SOT-23
Q1
3906
^Q_BJTP_SOT-23
LD4
GRN
LD3
GRN
4148
^D_SOT-23
D1
N124
N127
N122
11
6
R27
100
^R_0805
R20
^R_0805
39.2K
Q6
3906
^Q_BJTP_SOT-23
N118
N116
7
J6:7
R18
20.0K
^R_0805
R21
100 ^R_0805
R24
392K
^R_0805
3
+
8
7
5
1
4
-
2
U3:1
LM13600M
^U_LM13600
N130
C3
10-35V
4148
^D_SOT-23
D2
N120
N121
N131
7
J5:7
N111
N110
LD2
GRN
+14_DISP
N30
LD1
YEL
3
J5:3
2
J5:2
N33
N32
1
J6:1
3
J6:3
2
J6:2
N29
R1
1.00K
^R_1206
CW
CCW
W
VR2
10K-THRU-PCB
R11
4.75K
^R_0805
R14
12.7K
^R_0805
R16
12.7K
^R_0805
R22
536
^R_0805
N35
N36
N37
N39
C9
100pF-50V-5%
^C_0805
C11
47-10NP-10%
A1
A1
R10
4.75K
^R_0805
3 +
2 -
1
NE5532
U2:1
CH_A_SIG
+14VIC
8
J6:8
R23
1.50K
^R_0805
N38
N123
N125
R19
12.7K
^R_0805
N126
5
J3:5
1
11
DIP-10
SW1:1
+13VCL
R38
7.50K
^R_0805
C17
470pF-50V-5%
^C_1206
R31
16.5K-1/2W-1%
5
J4:5
+13IN
C16
15pF
SPKR_BUS_A
D4
4148 ^D_SOT-23
N43
4148
D5
^D_SOT-23
N42
N41
N40
8
4
R37
475
^R_0805
R29
5.90K
^R_0805
C14
10pF-50V-5%
^C_0805
-14VIC
+14VIC
5 +
6 -
7
U2:2
NE5532
U_OPAMP_DUAL1
P1
Q16
300V-.2A
^Q_BJTN_SOT-23
N92
Q17
300V-.2A
^Q_BJTP_SOT-23
P
MUTE+
N90
C18
100pF-50V-5%
^C_0805
N88
N91
C22
47-50V
P
N97
4148
D89
^D_SOT-23
MUTE_HI
R48
2.00K
^R_0805
N89
R46
12.7K
^R_0805
-15NTC
R106
12.7K
^R_0805
3904
Q15
^Q_BJTN_SOT-23
C20
.0027
^C_0805
N87
R53
100K
^R_1206
3904
Q8
^Q_BJTN_SOT-23
N132
R44
383
^R_0805
R39
1.50K
^R_0805
R35
1.50K
^R_0805
R32
1.50K
^R_0805
^Q_BJTN_SOT-23
Q7
3904
P
P
-13VCL
N129
C13
^C_E_ALUM_B
1-50V
N133
N128
R28
475
^R_0805
R42
1.00K
^R_1206
R34
1.50K
^R_0805
R33
100K
^R_0805
Q12
3906
^Q_BJTP_SOT-23
Q10
3906
^Q_BJTP_SOT-23
^Q_BJTN_SOT-23
3904
Q9
N136
N137
CLIP_A
NEGREF
DC_SENSE
^Q_BJTN_SOT-23
Q13
3904
N138
N139
PROT
N98
R50
15.4K
^R_1206
R47
2.21K
^R_0805
N140
C19
.1-50V-10%
^C_1206
P
^R_1206
15.4K
R49
+13VCL
4
J6:4
12
J6:12
10
J4:10
A-10, LED-PAR
N31
+XLR_B
N23
-XLR_B
N22
N28
N27
+13IN
A-20, +13V
20
J4:20
N24
N25
20
J3:20
10
J3:10
4
J5:4
12
J5:12
4
14
SW1:4
DIP-10
5
15
DIP-10
SW1:5
6
16
DIP-10
SW1:6
4
J4:4
1
J4:1
A-4, GND
C1
470pF-50V-5%
^C_1206
A1
R6
75
^R_0805
+IN_DPA
N2
N3
N14
N6
C2
470pF-50V-5%
^C_1206
C195
.001-5%
^C_1206
S
T
R
J1
4
J3:4
1
J3:1
1
3
2
J2
-14VIC
7
J4:7
8
J4:8
9
J4:9
R17
4.75K
^R_0805
8
4
3 +
2 -
1
U1:1
MC33078-SMT
N9
N1
1
N15
N18
N19
N20
C10
.22-50V-5%
R26
47.5K
^R_0805
N16
8
J3:8
9
J3:9
7
J3:7
R13
5.60K-.1%
R8
5.60K-.1%
3
13
DIP-10
SW1:3
C6
100pF-50V-5%
^C_0805
47-10NP-10%
C7
A1
R15
7.50K
^R_0805
DP-PAR-F
N34
N26
A1
6
J4:6
A-6, GND
N463
6
J3:6
2
12
DIP-10
SW1:2
-IN_DPA
NEG INPUT
+IN_CH-A
-IN_CH-A
+14VIC
C5
100pF-50V-5%
^C_0805
C8
.1-5%
C12
.1-5%
A1
R5
75
^R_0805
N4
N5
N7
N8
N12
3
J4:3
2
J4:2
N1
N10
2
J3:2
3
J3:3
R9
5.60K-.1%
R12
5.60K-.1%
POSREF
N13
N17
N54
R25
15.0K
^R_0805
10K
RE-230
R30
N44
R101
1.50K
^R_0805
N45
P
R41
1.50K
^R_0805
C15
100-25V
N473
CW
CCW
W
VR43
250
D3
^D_SOT-23
4148
N47
NTCBUS
N46
N21
5 +
6 -
7
U1:2
MC33078-SMT
AMP LOOP GAIN -- 32DB REVISION
USE SAME VALUE AS PLC-2
SIGNAL
POLARITY
INVERTED
N51
TH-SUBC-A
C21
47-50V
Q14
3906
^Q_BJTP_SOT-23
+15NTC
N49
N64
N50
P
R45
15.0K
^R_0805
R51
100K
^R_1206
D10
4148
^D_SOT-23
D14
4148
^D_SOT-23
D16
^D_SOT-23
200V-.2A-50NS
^Q_BJTN_SOT-23
3904
Q18
2N3904
Q20
^Q_BJTP_SOT-23
Q24
3906
R73
100K ^R_1206
SPKR_BUS_A
N78
N83
4148
D9
^D_SOT-23
N79
R60
39.2K
^R_0805
2SC4793
Q19
N65
+15NTC
C179
.1-50V
^C_1206
P
R381
100
^R_0805
N477
R76
12.7K
^R_0805
C23
.0027
^C_0805
N67
N68
N70
POS OUTPUT SECTION
R67
274
^R_0805
N66
R81 274
^R_0805
R59
5.90K
^R_0805
R72
2.00K
^R_0805
R91
R88
N72
P
R1
13
.47-2W
R111
R107
R102
8P
L
N74
N73
N81
N77
N71
Q26
MJE15033
L-Z_A1
D19
1N5402
N82
SPKR-A
D
N80
Q28
2SA1302
Q36
2SA1302
Q39
2SA1302
1
2
L1
2UH-14GA-AIR
N58
N56
N55
N53
N52
N57
N59
N60
N62
N63
N61
+MID-RAIL
E9C
BR-POS
EMI_G
C129
.1-250V
N76
N75
N459
D22
JUMPER
N141
N143
N144
D8
4148
^D_SOT-23
R62
5.90K
^R_0805
R75
2.00K
^R_0805
R68
274
^R_0805
R82 274
^R_0805
C24
.0027
^C_0805
N145
V-NEGSTEP
N146
R89
R92
R103
R108
R1
12
R1
14
.47-2W
R86
15-2W
-HI-RAIL
N142
N147
N148
2SA1837
Q22
C180
.1-50V ^C_1206
^R_0805
100
R382
MJE15032
Q27
4148 ^D_SOT-23
D1
1
N95
200V-.2A-50NS
^D_SOT-23
D13
N100
D12
4148
^D_SOT-23
Q25
3904
^Q_BJTN_SOT-23
R61
39.2K
^R_0805
N99
N101
R74
100K
^R_1206
^Q_BJTP_SOT-23
Q23
3906
N96
R77
12.7K
^R_0805
N93
N84
2N3906
Q21
N85
680pF ^C_0805
C25
C26
470pF ^C_1206
R80
5.6-2W
C27
.022
R65
12.7K
^R_0805
P
N94
N478
R70
100
^R_0805
R71
100
^R_0805
C28
.1-250V
E9A
E10A
P
P1
N86
R87
15-2W
R90
15-2W
R93
15-2W
R367
15-2W
R98
5.6-2W
N466
N105
N103
N102
N104
Q37
2SC3281
D20
1N5402
N107
N106
Q40
2SC3281
E10B
2+
1+
2-
1-
J7
JACK-SPEAKON
N461
BR-NEG
E10C
N462
-MID-RAIL
N109
N108
D21
JUMPER
5
J5:5
PWR GND
CLIP
SH 3
8
J5:8
LED-SIGNAL DISPLAY
1
J5:1
GAIN
PARALLEL
INPUT SW.
STATUS LED
SIGNAL
POLARITY
INVERTED
SH 4
BR MONO FEED, SH 3
A-5, CLIP A
SEE SH 4
SH 4
N134
CLIP-LIMIT
PROCESSOR
N135
SH 4
SH 3
DATAPORT, SH 4, CLIP A
DATAPORT CONNECTED TO INPUT
AS USUAL TO MINIMIZE CROSSTALK
WHEN USING REGULAR INPUTS
INPUTS IN PARALLEL
- SH 3
POS INPUT
A-2 +A
A-3 -A
A-1 GND
A-8,
LF-30
A-9,
LF
SIG
DISCUSS STAR GND
R-parallel, 7.5K, 10K, 4.7K, = 2.24K
2 POLE CASCADED ROLLOFF
-0.15dB, 20Hz. -0.4dB, 10Hz.
SH 4
INPUT AND FILTER SECTION, CH A
RING
TIP
SIGNAL
POLARITY
INVERTED
SH 4, EURO-INPUTS
POS STEP DRIVER
DIP SWITCH TABLE, 10-POS
1 - CLIP LIM, CH-A
2 - LF FILT, CH-A
3 - 30 HZ LF, CH-A
4 - PAR INPUT LED
5 - PAR INPUTS, +
6 - PAR INPUTS, -
7 - BR MONO
8 - 30 HZ LF, CH B
9 - LF FILT, CH B
10- CLIP LIM CH B
R36
9.09K
^R_0805
THERMAL
AND BIAS
SENSING
ROUTE TO SPKR OUTPUT.
R226 = 5.90K for PLC-2
N230
A-7,
LF-ON
N48
FULL MUTE, 5.7V
.36W at full clip
R85
15-2W
I-MON SH 4
+HI-RAIL
NEG STEP DRIVER
NEG OUTPUT SECTION
8P
L
-15NTC
PWR-GND, TO SUPPLY CT
Q29
2SC3281
E9B
FROM CH B
SHEET 3
2
2 OF 5
NONE
SH-001203-00
SH-001203-00
B
B
plx1202a.sch
Содержание PLX Series
Страница 1: ...Technical Service Manual PLX Series PLX 1202 PLX 1602 PLX 2402 PLX 3002 TD 000078 00 TD 000078 00 ...
Страница 2: ... PLX 1202 PLX 1602 PLX 2402 PLX 3002 ...
Страница 58: ...H z _ _ _ _ Fi G g u ...
Страница 59: ...Q 55 ...
Страница 60: ...PLX MAIN MOOULE ASSEMBLY smm 6 20 Y 5 r I_ 1 w ...
Страница 81: ... ...
Страница 82: ......