QSC-GX7-pwr-sch 维修电路原理图.pdf

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 10571D6-13-123-23-127-21-1112-10-1012-10-1010-28-2009D. 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 EXPRESS 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 AUDIO 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 - 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 INPUT 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 BUS0C - 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 ATTACK/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 CURRENT200VMOSFET 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 PCNT2001 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 PCNTMMST39061/10W1/10W1/10W10 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 PCNTMMST3904220PF50V50V20 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 PCNT30.1K1/10WI6973.65K1 PCNT1/10W100100PFIMBD4148200V100PF1/8WTRANSCONDUCTANCE OPAMP50V1 PCNT1/10W25V20 PCNT1 PCNT1/10W1 PCNT5 PCNT1 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PCNT100V1/10W0.1UF100V5 PCNT10V47UF10 PCNT1/10WMC330781/10W1 PCNT10.0K1 PCNT10 PCNT220PF5 PCNT1 PCNT20.0K1/8W1 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 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 PCNT1/10W22PF1001 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 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 PCNTIMBD4148100V10 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 PCNT1/10W47.5K47.5K1.0M1/10WIMBD4148MMST390450V0.1UFLED21.0K1 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 PCNT22PF1/10W1/10W1 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 PCNT0.1MTP45N061 PCNT69.8K3.01K102UH0.11/10W2.00K50V680PF200V47.5K243K1/10WMMST3904200V10 PCNT0.0056UF1/8WMMST3904BAS211/8W2W1N53990.1UF1/10W1 PCNT15.0K47UF2W105 PCNT1/10W15.0K1 PCNT1/10W1 PCNT1 PCNTMMST3906MURS160T33.65K5 PCNT2W3.65K1/10W1 PCNT1 PCNTMMST390650V1/10WMMST390650V100PF5 PCNT1/10W1 PCNT47.5KIMBD41481/10W1 PCNT1.00KIMBD41482W1 PCNT24.9K1/10W1/10W2.49K1 PCNTI1241 PCNT1/10W2SA22232SA22231/10W1 PCNT4.75K2.49K1/10W1/8W1 PCNT0.1UF2SC61452SC61455 PCNT0.152SC6145MJE15032MJE15032100PF1/10W1 PCNT200MMST39062SC61451 PCNT5 PCNT0.152SC61452SC614550V10M1 PCNT21.0K4.75K1 PCNT1/10W1 PCNT1/10W1.74K1 PCNT243K5 PCNT10PF1/10W1 PCNTMTP45N061N53990.153831/8W1 PCNTMOSFET N-CHANNEL10200V5 PCNT220PFSH-400001-00AR-400001-00.ZIPNONED2 OF 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+82V+134VP-REFP-REFSP-AFB-BTH-A+14VN-REFN-REFRET-ASP-B-14VIMON-A-14VA-LIMSND_ASND-AN-REFFB-A-14V-82VRET-B-14V-14V-14B+14BSND-ACLIP-ASIG-ACLIP-BSND-BDC_SHUTDOWN_LSP-A-134VSP-B+14VSND-BSP-A-14V+14VSIG-BSP-BB-LIMFB-ACLIP-BSND_B-14BSIG-ATH-B+14BSW-ON-82VRET-BRET-AP-REFSIG-BIMON-B-14V+14VB-LIMA-LIMCLIP-A-14VFB-BSW-ON+82VCLIPACLIPBRETARETBSIGASIGBSNDASNDB3213215673215675673215673218484848484141610915121162323312312234567812312312312312312312312325673178253121231231231231231231231231110139814761542312213213123123123123123123256178425617841231233121231231231231231231231232132123123123213123123123123123256178412312312312312312312312312312325617842323111111311114121234567891011121211109876543211234567891011121234567891011121331111111111133111AI Target1P1A1P2P2P2P2P1P1BALBAL_STRV+V-GNDP1BALBAL_STRV+V-GNDP2P2P1P1P1P1P1P1VOGNDV+BALBAL_STRV+V-GNDBALBAL_STRV+V-GNDV-V+P2P1VOGNDV+A1A1C1C1C1C1A1A1CCWCWWCCWCWWA1A1A1A1A1A1A1A1RTSRTSP1P1FEMALE312FEMALE312V-V+V-V+V-V+V-V+P1P1P1P1P1P1P2P2P1FEMALE2-2+1+1-FEMALE2-2+1+1-P1P1P1ININBIBIOUT+15VP1P1P1P1P1ININININBIBIBIBIBIBIBIBIBIBIBIBIBIV-V+BIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIBIC1C1C1V-V+C1C1C1-15V+15V+5VA+15V-15V-15V+15V+5VA+5VA-15V+5VA+15V+15V+5VA-15VC1+5VA+5VA-15V+15V+5VA+15V+5VA+5VA+15VP2P2P2P2P2P2C1Board_Fiducial1Board_Fiducial1Board_Target1Board_Target1SI_Target1SHEET3THIS DOCUMENT CONTAINS PROPRIETARYSIZEDSCALEREVCBADC6546543DCAD FILE NO.1DWG NO.78B12QSC AUDIO PRODUCTS.8OF QSC AUDIO PRODUCTS, THAT MAY NOTACAGE CODE27WITHOUT EXPRESS WRITTEN CONSENT FROMBE DISCLOSED, REPRODUCED OR USEDINFORMATION WHICH IS THE PROPERTY00PW4RadioFans.CN 收音机爱 好者资料库FRONT PANELAC SWITCHHS GNDP2 - HIGH PWR GNDP1 - LOW PWR GNDA1- QUIET REF GNDGROUND SCHEDULE18V15V0.47UF250VAC0.0033UF125VAC1.0UF50V1 PCNT1/10W1/10W5361 PCNT47.5K1 PCNT3.01K1 PCNT1/10W16 AWG20 PCNT7.50K2200UF1/10W2001 PCNT0.001UF5 PCNTRBV500620 PCNT150K330PF500V1000UF20 PCNT1000UF20 PCNT5 PCNT2W0.22UF10 PCNT50V0.22UF10 PCNT50V1/8WIMBD41484.25 IN16 AWG10 OHMSNTC1/8W16 AWG200V200V200V20 PCNT2200UF1/8W24V5AMURS120MURS120MUR1540MURS120MURS120500V330PF5 PCNT1 PCNT1W24.9500V1W24.9500V330PF5 PCNT1W1 PCNT24.95 PCNT24.91 PCNT1WF164ASF164CRECTIFIER DUAL COMMON ANODE25V20 PCNT100UF50V0.1UF10 PCNT25V100UF20 PCNT50V0.1UF10 PCNTLM78L0550V10 PCNT0.1UF55V20 PCNT1000UF1000UF20 PCNT90V55V1000UF90V20 PCNT1000UF90V20 PCNT1000UF20 PCNT1000UF90V20 PCNT55V1000UF20 PCNT1000UF55V90V20 PCNT1000UF55V1000UF20 PCNT1000UF90V20 PCNT2W2W90V1000UF20 PCNT55V5.1KMUR1540MUR15401/8W16 AWG4.6 IN1 PCNT1 PCNT1 PCNT1/10W4.75K2W10 PCNT5 PCNTMMBTA56IMBD41482200PF2.7100V1 PCNT1/8W0.0027UFMURS1201N5929B50V10 PCNT0.22UF0.22UF10 PCNT50V2W2W30K5 PCNT3.01K1 PCNT1/10W30K1.2UFMUR440IRG4PC40U1/8W101/8W1 PCNT101 PCNT10MBRS2040LT31/8W50V10 PCNTSG3525AN20 PCNT10UF16V0.22UF10 PCNT50V6.34K1 PCNT1/10W50V39.21 PCNT24V5A1/8W1 PCNT39.220 PCNTMUR15405 PCNT15KRECTIFIER DUAL COMMON CATHODE20 PCNT1000UF13.0 IN50V5 PCNT220PFBZX84B1825V1 PCNT243KMMBTA062.21K1/10W20 PCNT5 PCNT5.1K20 PCNT55V1 PCNT16 AWG4.25 IN125VAC470UF20 PCNT630V50V1 PCNT5 PCNT330PF16 AWGMMST3904IRG4PC40U5 PCNT300V3.7MH250VAC6.75 IN1 PCNT1/8W243K3.7MH1.0UF20 PCNT0.0033UF20 PCNTIMBD414810 PCNT1 PCNT487K1/8W1 PCNT1/8W0.1UF1 PCNT39.2K1/10W0.1UF50V10 PCNT20 PCNT5 PCNT2200UF0.0033UF20 PCNT125VAC1 PCNTMMST3904TCDT1101TCDT1101487K2200UF0.1UFMBRS2040LT31/10W1000UF90V55V1.00KMURS12010 PCNT2MMST390420 PCNT200VMUR44020 PCNT4.6 INNONEAR-400001-00.ZIPCR-5 : GX8_LIB.ROOT(SCH_1):PAGE1_I2GX8_LIB.POWER_SUPPLY(SCH_1):PAGE1DSH-400001-003 OF 3C68R219R218W6C54C56R193L5BR1C86C89C90R214R215T2W11D50Q72Q73R227U21C109C118R235C130R233C120D59D60D61D62D63D64D65D66R229C107C110C111C112C113C114C121C126C132C135C129C124C117C115C116C122C123C127C128C134SG2F2F3C85T1T1D40D42R223C83Q70Q71R213C84R216R217D39R220R222Q76R221C95R224C96D43D45C97C98D41U8C94D46D47C73R197R198C75R199R196C72R201R206R205R194R200C76R195D21C55C69W2W3W5MTG2C91C74D49T2R191W7C67L4MTG1R204D22K1C87T1R226Q75U15Q74U15R203R202C82W4C133D44R2251D3 1D3 1C3 1D4 1D3 5D2 5C5 5C8 5D2 5D2 5C5 5D2 5C2 5C4 5D2 LOSS_OF_ACVREFHV_P_SWSW-ONSW-ONSW_ACMV_N_SWLV_N_SWLV_P_SWHV_N_SW-134V-82V+82V+134VSMPS_SUPPLYSMPS_SUP_SWVREFVREFSMPS_SUPPLYLOSS_OF_ACSMPS_TRICKLEDC_SHUTDOWN_LPRI_MIDMV_P_SWACHOTACLO183675123567111213141516171819202195712411146810313151654162323678142-IN+INSYNCOSC_OUTCTRTDISCHGSFT-SRTVREFVINOUTBVCGNDOUTASHTDWNCOMP!OUTP1+5VAVOUTVINP1+15VP1INPRI_LOPRI_LOPRI_LOPRI_HIOUTOUTOUTOUTP1P2-15V+15VP2-AC2AC1+B1B2A2A1B1B2A2A1COMNCNOCOILSHEET3THIS DOCUMENT CONTAINS PROPRIETARYSIZEDSCALEREVCBADC6546543DCAD FILE NO.1DWG NO.78B12QSC AUDIO PRODUCTS.8OF QSC AUDIO PRODUCTS, THAT MAY NOTACAGE CODE27WITHOUT EXPRESS WRITTEN CONSENT FROMBE DISCLOSED, REPRODUCED OR USEDINFORMATION WHICH IS THE PROPERTY00PW4