QSC PL1.8 free download

File name QSC-PL1.8 pwramp.pdf

8 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. +V RN504:1 1K 2 5 1 7 SCHEMATIC, MAIN PCB, POWERLIGHT 1.4 FOR FAB SEE PC-000152-00 REV A DOC NO. SH-000157-00 REV C 6 5 4 3 2 REVISIONS ZONE REV DESCRIPTION 1 DATE APPROVED A +15V +15VIC CH1 R528 3 8 B C 4 15-1/2W RN505:4 22K D5541N4004 D635 1N4004 +15VIC CH2 R563 10K R530 270 R552 100K R549 330K R567 4.7K Q513 MPS8599 R569 47K R559 47K (TO SHEET 3) 4.7K RN506:2 3 C1 PROD RELEASE PER ECO 2548 (EFF. 1-27-95) AC REVISED PER ECO 2601 AC (EFF. 3-1-95) AC REVISED PER ECO 2755 AC (EFF. 6-30-95) AC OBSOLETE PER ECO 3244 (EFF. 9-27-96) AA 1-25-95 3-1-95 7-21-95 SGM SGM SA D (TO SHEET 3) R550 10K D555 1N4148 A RN505:2 22K 4 7 Q515 2N4410 Q520 MPS8599 D533 1N4746 -18V R531 1.62K J53:1 1 +FAN RN504:3 1K 6 C534 100-35V Q521 MPSW51 2 5 D R554 68K D532 7.5V R566 390K Q512 MPS8599 Q516 2N4410 A 7 D524 1N4004 RN504:4 1K 8 A D525 1N4148 D526 1N4004 ! -15V R555 390K D531 R562 2.2K R551 390K D556 1N4148 RN506:1 4.7K D535 1N4004 1 RN506:3 4.7K LD704 6 C530 47-50V J53:2 2 -FAN R556 PTC-60C R553 2.2K Q511 2N4410 C566 .1 A A Q519 MPS8599 2 A Q514 MPSW01 R529 15-1/2W D636 1N4004 -15VIC CH1 GREEN RN506:4 4.7K A 7 1N4148 (TO SHEET 2) RN505:1 22K 1 RN505:3 6 5 Q517 MJE15030 R564 1K 8 C535 4.7-16V 22K -15VIC CH2 -15V +96V RAIL T9 D J503 5 PROTECT (TO SHEET 3) U501 IC-000008-00 ! HIGH RAIL SCHMIDTT COMPARATOR LOSS-OF-SAT SHUTDOWN R505 22-1W GATE GATE DRIVER T8 G S Q504 4 ! SOURCE REF REF VOLT T 1 T 2 LOW RAIL T 3 SHUTDOWN T 4 SLEW T 5 NEG SUPP T 6 BOOTSTRAP CAP R508 2.7-2W T7 C505 .1-250V 1 R560 7.5K-2W R561 536 J502:2 C522 47pF +15VIC CH1 R546 3.5K-5W D510 C504 47-50V R509 22K-1W D502 MUR810 TO SHEET 3 C 8 A C RN502:2 4 3 2 RN502:1 1 IN4744A-15V C526 330-25V D521 IN4744A-15V D519 1N4934 D514 4.7V +40 +80V SWITCHED BUS 10K R545 1K 10K +15VIC CH1 C536 .1 5 8 + 7 6 4 A R522 1K C506 .001 R507 12K P P +48V RAIL 13 SIG. GND U503:B 5532 C537 .1 A J502:6 R518 22-1W C532 4.7NP-16V R568 953 C519 18pF ! R519 R520 R521 .22-3W 3 PL TRANSFORMER 7 SIG. GND A -15VIC CH1 RN502:3 RN502:4 10K 6 7 8 R548 450-5W D508 1N4934 VR501 100 BIAS PWR GND CH1 HS GND CH1 C W TP16 TP15 TP14 D513 1N5402 HEATSINK GROUND (SHEET 1 ZONE A5) 9 5 C520 47NP-10V R538 21.0K-.5W C524 .022 10K C521 47pF A P -I LIM P Q508 Q502 2SC3298B Q509 Q510 ! L501 2uH 2SA1302 3 PL R511 50 OHM 25 C 11 R540 4.7K R541 332 R542 75K R543 3.3-1W C513 .10-5% A C518 .10-5% VR502 2K C W HEATSINK GROUND R524 10-2W R525 5.6-2W 1 2 J504 SPEAKER OUTPUT CH1 C563X 10 C523 .0022-5% 200V D520 1N4934 SG2 HS GND CH1 SW. GND 1 2 SW R502 3.3-1W ! AUDIO OUTPUT STAGE 12 5 6 R526 10-2W C564X R501 3.3-1W ! RN503:1 2.2K 10 GAIN GROUND 1 2 3 RN503:2 2.2K 4 RN503:3 2.2K 3 + R547 56.2-1%-1/8w C508 .01 U503:A 1 7 2 - R52