QSC-GX7-pwr-sch 维修电路原理图.pdf
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1、2. COMPONENTS MARKED WITHADD1. THIS DRAWING USED IN CONJUNCTION WITH ASSEMBLY WP-400001-00.ARE SAFETY CRITICAL AND MUST BE REPLACED WITH THE EXACT SAME PARTRABBCPRODUCTION RELEASE W/O CHG PER ECO 10438REVISED PER ECO 10999REVISED PER ECO 11625REVISED PER ECO 10571D6-13-123-23-127-21-1112-10-1012-10-
2、1010-28-2009D. GAVAN12-8-10SUBVERSIONDENISE DSH-400001-003AR-400001-00.ZIPNONEGX7DMatt SkogmoOF2OF1FP2FP1BB13B2v 5A3v 3C2v 5B3v 3A3v 5A4v 3C3v 5B3v 5C3v 3B1v SW-ON-82V+82V-134V+134VDC_SHUTDOWN_L111111675 MACARTHUR BOULEVARDSCHEMATIC DIAGRAM7PLOT DATE:DOF QSC AUDIO PRODUCTS, THAT MAY NOT4WITHOUT EXPR
3、ESS WRITTEN CONSENT FROMCBADC543653DDATESEED FILE NO.CHECKEDISSUED78NOTES: UNLESS OTHERWISE SPECIFIEDB12REVCHKAPPROVED/DATEEFF. DATEDESCRIPTIONREVISIONSAPPROVALS8A2REVDWG NO.SIZESCALESHEET 1 OFTHIS DOCUMENT CONTAINS PROPRIETARYINFORMATION WHICH IS THE PROPERTYBE DISCLOSED, REPRODUCED OR USEDQSC AUDI
4、O PRODUCTS.1CAD FILE NO.COSTA MESA, CA 92626CAGE CODE00PW4CONTRACT NO.DRAWNQSC AUDIO PRODUCTS, LLC.6POWER_SUPPLYSW-ON-82V+82V-134V+134VDC_SHUTDOWN_LAMPLIFIERSW-ON-82V+82V-134V+134VDC_SHUTDOWN_L!Offset_Target1Offset_Target1Panel_Fiducial1Panel_Fiducial1Badboard_Mark1CREFRPTRadioFans.CN 收音机爱 好者资料库65C
5、- 3.9V95C - 2.75VBLK POSTRED POSTCIRCUITFAN SPEEDCH BHI = ONFEEDBACKBLK POSTLO = OFFMAIN BOARD OPAMP BYPASS CAPSA1- QUIET REF GNDGROUND SCHEDULEBIAS85C - 3.17VGAIN BLOCKPEAK CLAMPSHI = ONCLIP-LIM THRESHOLDOUT, 90HZ, 200HZ.AMPLIFIERDIODESP1 - LOW PWR GNDCHASSISGROUNDSTO SPKR-APEAK CLAMPSBALANCED INPU
6、T STAGEDIODESNOTECUTBACKCH BNOTESUB - TOP FILTER, 2-POSINPUT BOARDGAIN -6DB (2VPK = 1VPK)1.2V NOM INPUT (2V-PK)(RCA TIP - UNBALANCED)GROUNDSCHASSISNORM-SUBLO = OFFHI = ONCUTBACKHI = ONRED POSTCH ATO SPKR-B65C - 2MADISPLAY AND GAIN BOARD55C - 1.2V0C - 1.8VSENSOR65C - 1.07V25C - 1.58V95C - 0.75VTH BUS
7、0C - 6.6VTHERMAL GAIN SET AT 3.66FOR 4.4V AT 55C, FAN SPEEDEMITTER R0C - NIL25C - NIL95C - 7MA, 1.4VFAN55C - START25C - 5.8VTHERMAL TRACKING1111CHA = LP, CHB = HPP2 - HIGH PWR GNDLO = OFFLO = OFFBIASCH A55C - 4.4VFEEDBACKSOA OVERLOADCLIP-LIMITINGPROTECTION AND LIMITING PARADIGMSINGLE-SIDED, SLOW ATT
8、ACK/RELEASETHERMAL LIMIT MUTES SEVERAL DEGR ABOVE MAX LIMITINGON/OFF AND THERMAL MUTING COMMON TO BOTH CHANNELSSEVERE TRIGGERS CUTBACK TO 25% PK CURRMILD/OCCASIONAL OK - NO EFFECTCURRENT TOO HIGH WELL BELOW RAILSNORMAL CURRENT CLAMPING TRIGGERS CLIP-LIMITINGTRIGGERS ON CLIP AND NEARLY FULL CURRENT20
9、0VMOSFET N-CHANNEL5 PCNT1 PCNT1/10W200V200VMMST3906220PF5 PCNT220PF200V5 PCNT220PF1/10WSENSOR1/10W5 PCNT5 PCNT2W1/10W33.2383MUR15201/8W1 PCNT1/10W1 PCNTMMST3906IMBD414810UF20 PCNTI609COMPARATOR1/8W1/8W5 PCNTMMST39041/10WIMBD414810 PCNT0.22UF3831/10W5 PCNT50V1 PCNT1/10WCOMPARATORLM339AM1/10W7.50K1 PC
10、NT2001 PCNT5 PCNT200V5 PCNT50V50V1012.7K1 PCNTIMBD4148MMST39061/10W1 PCNT1/10WMMST39041/10W2001/10W33.2LED5 PCNT1 PCNT1/10W1 PCNT1 PCNT5 PCNT2W1 PCNT7.50K47.5K1/10W1 PCNT7.50K50VMMST390620 PCNT1/10W2.21K1/2W1 PCNTTRANSCONDUCTANCE OPAMP3830.068UF0.1UF1 PCNT5 PCNT24.9K1 PCNT7.50K1 PCNTMMST39061/10W1/1
11、0W1/10W10 PCNTMMST390447.5K1.74K33.22SA222350V1/8W50V5 PCNT1 PCNTIMBD41481/8W1 PCNT30.1KMC3307822PF5 PCNT0.155 PCNT2SA22230.152SA22232WBAS21MJE15033MJE150331 PCNT24.9K1 PCNT1 PCNT2SA22235 PCNTBZX84C101 PCNT1/10W100PF5 PCNTMMST3906MPSA921001 PCNT39.21 PCNT1/8W220PF1 PCNT1/8W39.21/8W1 PCNTMMST39065 PC
12、NTMMST3904220PF50V50V20 PCNT24.9K1 PCNT1 PCNT1/10W24.9K2.49K1/10W1 PCNT1 PCNT1/10W1 PCNT100K1 PCNT1 PCNT5 PCNT50VI8921 PCNT22PF5 PCNT200V1001 PCNT50V20 PCNT1.0UF1/8W21 PCNT39.2K2W5 PCNT0.12W101/8W1 PCNT1/10W1 PCNT39.2K100PF100MC3307850V5 PCNT680PF100PF5 PCNT69.8K1/8W1/10W3.65K1 PCNT30.1K1/10WI6973.6
13、5K1 PCNT1/10W100100PFIMBD4148200V100PF1/8WTRANSCONDUCTANCE OPAMP50V1 PCNT1/10W25V20 PCNT1 PCNT1/10W1 PCNT5 PCNT1 PCNT1/10W1/10W47UFMMST3904MMST3904MPSA42IMBD41481/8WMMST39065.90K1/10W7.50KIMBD4148MMBTA42MMST390612.7K1 PCNT1/10W24.9K250V1 PCNT1001 PCNT1004.75KMC330780.1UF1/8W5 PCNT1/8W101 PCNT1 PCNTX
14、LR5 PCNT50V20 PCNT35V20.0K5 PCNT10 PCNT10VMC33078MMST390620 PCNT10UF24.9K1 PCNT1/10W1/8W1 PCNTTRANSCONDUCTANCE OPAMP1/8W1 PCNT1 PCNT1/10W0.1UF10 PCNT69.8K1 PCNT1/8W10 PCNT1/8W100V0.155 PCNT1N539910 PCNTBZX84C1035V10 PCNT1/10W1 PCNT7.50K1 PCNT20.0KLM339AM1 PCNT1/8W4.75K1 PCNT1 PCNT20.0KSENSOR1/10W10
15、PCNT1 PCNT1/10W0.1UF1 PCNT47.5K1/10W1 PCNT27410 PCNT1/10W0.1UF1 PCNTMMST39061/10W1.13K1/8W1/10W10 PCNT0.22UF50V47.5K1 PCNT50V1 PCNTI607I268I1025TIP31C3.01K1 PCNTMMST39041/10W24.9K0.068UF100.15 PCNT2W5 PCNT0.12W1/10W69.8K10 PCNT47UF2.49K1 PCNT1/10W10.0K1/10W1 PCNT10 PCNT50V10 PCNT50V50V5 PCNT10 PCNT0
16、.22UF5 PCNT0.1UF2.00K47UFJACK1/8WMC3307824.9K1 PCNT1/10W100V220PF35V10UFMC330781 PCNTDPDTMC330781 PCNT220PF50V5 PCNT1 PCNT20.0K1 PCNT10.0K50V0.022UF39.2K0.1UF100V7.50K5 PCNT1 PCNT5 PCNT1 PCNT39.2K7.50K1 PCNT100V1/10W0.1UF100V5 PCNT10V47UF10 PCNT1/10WMC330781/10W1 PCNT10.0K1 PCNT10 PCNT220PF5 PCNT1 P
17、CNT20.0K1/8W1 PCNT20.0K1/8WJACKXLR50V0.1UFMC33078MC3307810 PCNT50V5.90KLEDLEDLED5K1.00K50V4.75K1/10WMC330782UH1/10W2WMURS160T3BAS219311 PCNT1/10WIMBD414812.7K2.49KBAS21IMBD4148MPSA920.152W5 PCNT10 PCNT10 PCNT50VMTP45N065 PCNT2W5 PCNT0.110 PCNT1/8W0.0056UF0.155 PCNT2W5 PCNT2W2W0.152W0.155 PCNT2W22PF5
18、 PCNTMUR15209311 PCNT69.8K1 PCNT10.0K1/8W1 PCNT1/8W10 PCNT10V47UF1/10W3.01K1 PCNTMMST3904MMST39041/10W29.4K1 PCNT20 PCNT10UF16V1 PCNT1/8W101/10W1 PCNT35V5.90K50V1/10W1/8W2.49K1/2W1/8W1/10W1 PCNT1/10W0.1MC330781 PCNTIMBD414822PF200V100K7.50K1 PCNTIMBD4148COMPARATOR35V22PF250V10035V1001001/10W1 PCNT1/
19、10W22PF1001 PCNT1/10W1001/10W1 PCNT1/2W21.0K1 PCNT1/10W1 PCNT1 PCNT100PF200V1.74KLM339AM33.21/8W1033.21 PCNT1/8W1/8W1/8W1 PCNTMMST39041/8W1/10W1 PCNT101 PCNT1/8W1/10W5 PCNT2W5.90K47UF10 PCNT10V1.74K1 PCNT1/10W2001001 PCNT1/10W5 PCNT10PFMC330781 PCNT1 PCNT1 PCNT383101 PCNT1/10W200V0.1UF10 PCNT1 PCNT1
20、 PCNT470UF16V20 PCNT16V20 PCNT470UF12.7K50V10 PCNT0.22UFMPSA421001 PCNT1 PCNT5 PCNT1 PCNT1/10WMMST390693169.8K1/10W0.1MMST39041 PCNT20 PCNT10UF1022PF10UFMMST39061/10WMOSFET N-CHANNELMTP45N065 PCNT1/8W1.00K1N5399BAS211/10W2W200VMUR15201/8WMMBTA422.49K1/10W1 PCNT1/8W1 PCNT10M1 PCNTMMBTA921 PCNTIMBD414
21、8100V10 PCNT1 PCNT100V0.068UF10 PCNTMOSFET N-CHANNEL10100V0.068UF10 PCNT0.1UF50V0.1UF10 PCNT50V10 PCNT0.1UFMC3307850VBAS211/10WIMBD4148931101001 PCNT1/10W33.21 PCNT1/10WMMBTA922W1/10W1 PCNT1/10WMMST39042.00K2.00K1/10WMMST390430.1K30.1K1/8W200V1 PCNT1/8W1 PCNT1/10W47.5K47.5K1.0M1/10WIMBD4148MMST39045
22、0V0.1UFLED21.0K1 PCNTCOMPARATOR2.49K105 PCNT2WMMBTA421 PCNT10MMST390650V21.0K0.22UF0.22UF1 PCNT1/8W0.1UF1 PCNTMC33078220PF1 PCNT10.0K20 PCNT1/10W1/10WJACK1/10W4.75K1N4743A6341 PCNT1 PCNTMMST39061 PCNT10.0K1 PCNT1/10W100K1/2W1/10W1 PCNT102W0.151 PCNT1 PCNT2W1/8WMMST3906I10272W5 PCNT0.151 PCNT22PF1/10
23、W1/10W1 PCNT1 PCNT1.0M1 PCNT1/8WLM339AM0.1UF10 PCNT10 PCNT0.22UF50V50V10UF10V5 PCNT200V25V1/10W1/10WI10281 PCNT1/10WMMBTA4269.8KMUR15201/10WMMST390410MMST3904IMBD414869.8KLM339AM5 PCNT5K0.1UF10 PCNT1 PCNT4.75K1/10W1/10W4.75K50V1 PCNT1/10W4.75K1 PCNT1/10W1 PCNT1/10W12.7K1 PCNT7.50K12.7K5 PCNT5 PCNT0.
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