QSC GX5 free download

File name qsc_gx5_sh_ts_sch.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. 7 6 5 SENSOR 0C - 1.8V 25C - 1.58V 55C - 1.2V 65C - 1.07V 95C - 0.75V THERMAL GAIN SET AT 3.66 FOR 4.4V AT 55C, FAN SPEED 4 THERMAL TRACKING +5V EMITTER R C45 P1 0.22UF 10 PCNT 50V 3 REV 2 REVISIONS DESCRIPTION 1 EFF. DATE CHK APPROVED/DATE +15V B 1 +15V R105 4.75K 1 PCNT 1/10W 12.6v R110 383 1 PCNT 1/10W DISPLAY AND GAIN BOARD 5K CC 1 +5V U8 VOLTAGE REGULATOR VOUT 1.57v 5 under the front heatsink U9 1 V+ 2 VO GND R123 4.75K 1 PCNT 1/10W D19 1N4743A FAN 2 R120 J5 634 1 PCNT 1/10W 11.3v idle 0C - NIL 25C - NIL 55C - START 65C - 2MA 95C - 7MA, 1.4V 16v J5 PRODUCTION RELEASED PER ECO 8550 EMITTER RESISTORS HAVE NEW PART NUMBER UPDATED GAIN POTS AND SPEAKONS 03/15/08 RAB DD LM339AM 2 C81 0.1UF 10 PCNT 50V 3 W 6 5 6 5 5.8v 5v 3 -15V +15V 5K CC 1 LD3 LED GREEN LED RED BIPOLAR LD4 LED GREEN LED RED BIPOLAR SIG-B R33 3.01K 1 PCNT 1/10W SP-B 2 R54 R58 30.1K 1 PCNT 1/8W VIN 1 C38 3 W SENSOR 1.57v C40 0.1UF 10 PCNT 50V 4 U7 C46 P1 R102 20.0K 1 PCNT 1/8W 0.22UF 10 PCNT 50V TH-A TH BUS 0C - 6.6V 25C - 5.8V 55C - 4.4V 65C - 3.9V 85C - 3.17V 95C - 2.75V R46 2.00K 1 PCNT 1/10W C39 0.1UF 10 PCNT 50V 3 VR1 2 W R13 3.48K 1 PCNT 1/10W VR2 2 W R14 3.48K 1 PCNT 1/10W LD2 C23 0.22UF 10 PCNT 50V LD6 C24 0.22UF 10 PCNT 50V Q4 MMST3904 1 P1 LD7 LED BLUE 2 3 Q3 MMST3904 30.1K 1 PCNT 1/8W +15V P1 0.1UF 10 PCNT 50V 3 5.8v 1 2 2 3 6 Q31 MMST3906 4.5v 4.0v 3 C54 1000UF 20 PCNT 35V C55 P1 1000UF 20 PCNT 35V D20 IMBD4148 R97 7.50K 1 PCNT 1/10W TH-B U7 LM339AM 1 MMST3906 SMT FUSE F1 W14 J2A J2A J2A J2A J2A J2A J2A J2A J2A J2A J2A J2A R60 R81 47.5K 1 PCNT 1/10W R96 47.5K 1 PCNT 1/10W R119 47.5K 1 PCNT 1/10W AC1 3 P1 -15.8v 2 3 15v WHEN INACTIVE +5V R90 1.13K 1 PCNT 1/10W 1 R121 Q36 TIP31C 3 D J2B J2B J2B 1 13 under the rear heatsink 1.6v U12 1 11 (IDLE) 2 VO V+ GND C52 10 0.1UF 10 PCNT 50V SENSOR 2 2 +3.4v 1 MMST3906 Q33 4.3v idle D21 IMBD4148 1 C56 BR1 + AC2 1 XF-12V (YELLOW) D +5V 19.3v R115 2 - 0.1UF 10 PCNT 50V 24V 5.0A SIG-A R124 2.00K 1 PCNT 1/10W SP-A 2 R131 P1 30.1K 1 PCNT 1/8W 47.5K 1 PCNT 1/10W 5.8v R125 3 R74 1.0M 1 PCNT 1/8W R107 1.0M 1 PCNT 1/8W J2B J2B J2B J2B J2B J2B J2B J2B J2B R128 100K 1 PCNT 1/10W 10.0K 1 PCNT 1/10W R135 10 1 PCNT 1/8W XF-AUX CT INTERNALLY CONNECTED TO MAIN CT F2 W15 BRIDGE RECTIFIER Q37 MMST3904 1 3 R59 30.1K 1 PCNT 1/8W R86 47.5K 1 PCNT 1/10W R93 47.5K R91 1 PCNT 274 1/10W 1 PCNT 1/10W 10 11 12 5.3v A1 A1 P1 3 1 1 Q34 MMST3904 1 7 3.5v U7 LM339AM 9 3.5v 8 +3v D15 IMBD4148 3 2 20.0K 1 PCNT 1/8W 1.6v 7.50K 1 PCNT 1/10W FAN SPEED CIRCUIT P1 -15.8v -15V AC-ON 1A-200V 4 1 D22 24V 5.0A XF-12V (YELLOW) AUX COIL, 24V CT SND-A RET-A SND-B RET-B +15V CLIP-A SIG-A SIG-B CLIP-B T