QSC PLX Series

65
D
C
B
A
D
C
B
A
87654321
87654321
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
16
J6:16
LD11
GRN
N349
N350
14
J6:14
D90
4148
^D_SOT-23
R252
1.00K
^R_1206
R232
1.00K
^R_1206
N334
N348
16
J5:16
14
J5:14
R370
634
^R_1206
N333
R241
12.7K
^R_0805
^Q_BJTP_SOT-23
Q87
3906
D50
4148
^D_SOT-23
D49
4148
^D_SOT-23
47-10NP-10%
C71
N339
DC_SENSE
N332
P
D48
4148
^D_SOT-23
N331
R240
2.21K
^R_0805
R242
20.0K
^R_0805
-DC THRESH, -4V
N338
-MID-RAIL
R243
39.2K
^R_0805
R244
20.0K
^R_0805
N337
C72
100-25V
C78
100-25V
C79
100-25V
3
+
2
-
1
^LM393-SMT
U10:1
D51
4148
^D_SOT-23
N340
C75
^C_1206
.001-5%
C80
10-35V
84
R245
12.7K
^R_0805
+DC THRESH 4V
NTCBUS
N474
P1
C81
.001--5%
^C_1206
C86
10-35V
R263
392K
^R_0805
5
+
6
-
7
U10:2
^LM393-SMT
N344
R262
15.0K
^R_0805
N341
3906
Q88
^Q_BJTP_SOT-23
N343
D55
4148
^D_SOT-23
P
R258
9.09K
^R_0805
R259
12.7K
^R_0805
R261
39.2K
^R_0805
N342
1N4744A
D53
D54
1N4744A
P
R260 392K
^R_0805
R268 100K
^R_1206
N345
N346
R273
1.50K
^R_0805
MUTE+
FROM PWR SUPPLY OPTOCOUPLER, SH 5
TO SHEETS 2 AND 3
D56
6.2V-.3W
^D_ZEN_SOT-23
R270
1.50K
^R_0805
P
N354
FAN SPEED CONTROL
R265
2.21K
^R_0805
R264
2.21K
^R_0805
N351
R229
20.0K
^R_0805
N347
R253
4.75K
^R_0805
Q89
3904
^Q_BJTN_SOT-23
+15V
N352
R267
2.21K
^R_0805
N353
R271
20.0K
^R_0805
Q91
TIP 32C
N355
C89
47-50V
2
J13:2
^Q_BJTN_SOT-23
3904
Q90
-15V
DC-OFF
BR-ON
-13VCL
C74
470-16V
C77
470-16V
P
-15V
R247
39.2
^R_1206
R249
39.2
^R_1206
N335
R250
1.00K
^R_1206
N336
C73
470-16V
C76
470-16V
+15V
R246
39.2
^R_1206
R248
39.2
^R_1206
+13VCL
N283
N286 N287
N282
+14VIC
+HI-RAIL
+MID-RAIL
+15NTC
POSREF
N468
R257
820-2W
P1
R256
820-2W
+MID-RAIL
-14VIC -11V
N284
N285
A1
C191
.1-50V
^C_1206
R224
0.7 JUMPER
N469
P1
N288
R276
820-2W
R277
820-2W
R278
820-2W
JUMPER
D88
-MID-RAIL
N322
-HI-RAIL
D
N323
N324
L-Z_A1
D
N327
N326
N69
TH-SUBC-A
SEE SH 2
N328
N325
D
N329
D
N289
N290
N291
N292
P1
DP-PAR-F
SPKR-A
+11V
SH 2
SH 3
V-MON CH A
(NEW BMF SUBCODE,
0-2V, 0.5V BITS)
INJECT V-DC
POST OPAMP,
NO GAIN SCALING
BMF VOLTAGESCHEME: BINARY CODING, 2 BITS
SOURCE VOLTAGE,13V NOM, 11V-14.5V (UNREG)
STEREO (NORMAL): BINARY 0,0 = 0V OUT
INPUTS PARALLEL: BINARY 0,1 = .5V NOM, .42-.575,
BR MONO: BINARY 1,0 = 1.0V NOM, .85-1.15
BR-MONO + PAR: BINARY 1,1 = 1.5V NOM, 1.27-1.72
NOM THRESHOLDS, 0.25, .75, 1.25.
FOR UNREG TRACKING DECODING, USE V-ON (1V NOM) AS REF
N297
N298
N299
N300
N293
N294
A1
-IN_CH-A
-IN_DPA
D
N362
D
N364
N365
N366
N360
N361
P1
SPKR-B
N358
N359
N356
+11V +13VCL
N357
D
D
N363
+15V
N367
N149
TH-SUBC-B
SEE SH 3
-IN_DPB
CLIP_B
N460
N315
N316
N306
N307
N317
N313
+IN_DPA
+IN_DPB
CLIP_A
N295
N296
N303
N301
N302
N304
N305 N310
N311
N308
N314
N318
N319
N312
N320
N321
A1
+IN_CH-B
-IN_CH-B
plx1602.sch
B
B
POWER LED
ON DISPLAY PCB
V-STBY
SH 5
DC MUTING
SH 2, 3
R251
3.9K-2W
15V-SW
SEE SH 5
FAN SPEED THRESHOLD
ON-OFF DELAY,
THERMAL THRESHOLD
THERM HYST
-15NTC
POS RAIL
PS-OL
FULL MUTE, 5.7V
FULL CUTBACK, 2.8V, 1MA
MUTE_HI
C85
.001-5%
^C_1206
1
J13:1
+FAN
R272
9.09K
^R_0805
-FAN
R266
9.09K
^R_0805
TO SHUTDOWN OPTOCOUPLER, SH 5 (6V)
SH 3
OPAMP POWER SUPPLIES
TO OPTOCOUPLER LED
1.6V OF HYSTERESIS
TO PWR SUPPLY C-T
PLC-2 USES MID RAILS ONLY
+11V
JUMPER
D87
DP - STBY
NEGREF
V-NEGSTEP
OUTER COIL, 6T
CH A V-MON, I-MON
D
I-MON CH A
(WITH SEPARATECH A
THERMAL SUBCODE)
-11V
N330
ROUTE TO SPKR OUTPUT
V-MON CONVERSION SCALES:
PLC-2: (sim to 1.4) 30.1K / 2.00K = 15.05 Vout/Vmon
PLC-3: (between 1.8, 2.0) 33.2K / 1.5K = 22.13 Vout/Vmon
DP-BR-F
EURO-PLUG:
RAVE SIGNAL
FORMAT
+A
DATAPORT
HD-15 JACK
-IN, A
STBY
-A
GND
DATAPORT INPUT SENSITIVITY:
PLC 2:
7.87K / 5.60 K,
1.23V-IN -> 2.95V-DP
PLC-3:
4.75K / 5.60K
1.70V-IN -> 3.15V-DP
+IN_CH-A
FOR 1/8 WATT:
110 MA, 1.1V MAX
OUTER COIL, 6T
CH B V-MON, I-MON
L-Z_B1
ROUTE TO SPKR OUTPUT
V-MON CH B
(PWR-SUPPLY- ON
SUBCODE: .8-1.3V)
SCALE 13V TO 1V NOM
D
I-MON CH B
(WITH SEP.CH B
THERMAL SUBCODE)
-11V
SEE SH 2
+15V ??
+IN, B
+IN, A
CHAS GND
CLIP-A
IMON-A
VMON-A
D-REF
CLIP-B
IMON-B
VMON-B
IDR
-IN, B
EURO-PLUG:
RAVE SIGNAL
FORMAT
GND
+B
-B
SET ID- R
CH GND
NONE
4OF5
4
SH-000516-00
SH-000516-00