QSC-GX5-pwr-sch 维修电路原理图.pdf

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1、PRODUCTION RELEASED PER ECO 8550BON/OFF AND THERMAL MUTING COMMON TO BOTH CHANNELSRED POSTBLK POSTLO = OFFCUTBACKP2 - HIGH PWR GNDCH A95C - 0.75V8V INPUT = 94V-OUTTHERMAL GAIN SET AT 3.6695C - 2.75VCONNECTED TO MAIN CTXF-AUX CT INTERNALLYFOR 4.4V AT 55C, FAN SPEEDAMPLIFIERGAIN BLOCKPEAK CLAMPS85C -

2、3.17V65C - 3.9VTH BUSCLIP-LIM THRESHOLDOUT, 90HZ, 200HZ.SUB - TOP FILTER, 2-POSBALANCED INPUT STAGENOTECHASSISGROUNDS8V INPUT = 94V-OUTLO = OFFHI = ONPEAK CLAMPSAUX COIL, 24V CTXF-12V (YELLOW)FEEDBACKHI = ONCUTBACKBLK POSTBIASDIODES25A-600V25A-600VSMT FUSECIRCUITBIASDIODESFAN SPEED0C - 6.6VNORM-SUBC

3、HA = LP, CHB = HP25C - 1.58V3K MUTESHI = ONXF-CT (GRAY)FEEDBACK25C - 5.8VLO = OFFTHERMAL LIMIT MUTES SEVERAL DEGR ABOVE MAX LIMITINGMILD/OCCASIONAL OK - NO EFFECTCURRENT TOO HIGH WELL BELOW RAILSPROTECTION AND LIMITING PARADIGMSEVERE TRIGGERS CUTBACK TO 25% PK CURRSOA OVERLOADNORMAL CURRENT CLAMPING

4、 TRIGGERS CLIP-LIMITINGTRIGGERS ON CLIP AND NEARLY FULL CURRENTSINGLE-SIDED, SLOW ATTACK/RELEASECLIP-LIMITINGNOTEGROUNDSCHASSISCH BHI = ONTO SPKR-BIN 30MSTO SPKR-A1A-200VXF-88V (BROWN)XF-88V (VIOLET)XF-44V (RED)XF-44V (ORANGE)THERMAL TRACKINGP1 - LOW PWR GNDA1- QUIET REF GNDGROUND SCHEDULECH B55C -

5、4.4VFAN0C - NIL65C - 1.07V55C - 1.2V0C - 1.8VSENSORRED POSTXF-12V (YELLOW)95C - 7MA, 1.4V65C - 2MA55C - START25C - NILEMITTER RLO = OFFDISPLAY AND GAIN BOARDMAIN BOARD OPAMP BYPASS CAPS(RCA TIP - UNBALANCED)1.2V NOM INPUT (2V-PK)GAIN -6DB (2VPK = 1VPK)CH AINPUT BOARDUPDATED GAIN POTS AND SPEAKONSEMI

6、TTER RESISTORS HAVE NEW PART NUMBER03/15/08BRABDDSND-BJ1AJ1A1 PCNTMC330781 PCNT470UFC1511C81R41R187R110C3C9C80R22R186R184C14FB2FB1BT2BT1SI1AI113132Q67312Q6632Q64322Q6313Q65321SG1321J3C79C78C76C77R180R179C74F3R178F4R182C75R181C73C72C68C67C69C28C32R61R62C35487165322U141Q3R46321Q4R1523D2821Q47R151R156R

7、158R129C57C58R138R140321Q41D26D25R146R1431Q39D24D23R133321Q38R142R14521Q46R154D3021Q45R150R1473R149C60R1301Q40R13948716532U13R141R144321Q42321Q43D29R153321R1571C591Q48C61D32C63R58R161321Q61R159R167C65R170D38321Q563213Q6021Q55C64D36R169R173321Q54R16432Q58R166D34R168R17221L2R175R176C71R1772Q5721Q59R16

8、0R165D35R171C66R162R1631Q62D37R174R5421Q531Q52C62321Q51D15D6R93R86R119R96R111D16C47R103121Q271Q26C361Q11R66R67R70R69R63R653C5121Q32R107R123R125R128C522133U1221321Q10R92R91R90C33R116R113R117R112R57R48R59R108R6848716532U1048653221Q21R78D13D5R75C44C70D14R10011R79R74D9C431Q151Q2421Q25C50R109R114D17R951Q

9、291Q30123U7245U767U71489U7131011U73213Q1421Q7321Q621Q201Q17R73R72C41D12D10R85R84R77R76R88R871Q18R64C34R50D1D2R43R27R29R36R39R45R44R40R26R2812J2B11J2B101J1B2J1B3J1B4J1B5J1B6J1B7J1B8J1B9J1B10J1B11J1B12J1A10J1A9J1A8J1A7J1A6J1A54J1A32J1A1J1A4321BR31W9R1371W101W131W121W114321BR21W151F1R134C532J5321Q31R12

10、1D2031R115213U9C46C45C40C39C38R97R105R102R60C1R33C24C23LD6LD2LD4LD3LD721Q126531VR26531VR1C22C21R47R53C26R52R38R245287143U6R31R37R30C25R51R55R49R25R34R35R42R32R56C29765U5C30C16C27C31R122R118R131R12421L1C48R132R127R1061Q121Q221Q5321Q37321Q34R99R94R98R89321Q91Q8R136R135R82R83R23R21C19C20R6R9R2R5R1R17R2

11、0C18C17C13C5C2C6C4C10C8C7C12C11R16R12R4R15R11R3R19R14R8R18R13R721Q16321Q19321Q13W5A11W6AW5B1W6BW1AW2AW1BW2BW71W8W3W4F2C55C54D19321Q361632U8D22D21D4D3D8D7D113412J133412J1287654321SW14321BR1213J6213J9321J10321J7U61215910161314U648U548U448U148U348U2123U5765U4123U4765U2765U1123U2765U3123U3123U110 PCNTCL

12、IP-B1 PCNTMMBTA421 PCNT+5V1/10WSIG-AXLR50V200V5 PCNT22PF1 PCNT1/8W33.225V20 PCNT47UF5 PCNT50V220PFMMST390650V0.1UF10 PCNTJACKLED GREENMMST3906JACKMMST3904MMST39065 PCNT50V220PF10 PCNT10V47UF10V10 PCNT10V47UFLM339AMLM339AM1 PCNT1/10W38310UF35VMMST3904IMBD41485 PCNT50V220PF22PF5 PCNT200V2UH1 PCNT101/8

13、W10 PCNT50V100K1 PCNT1/10WBAS217.50K1 PCNT1/10WMMST39067.50K1 PCNT1/10WMURS160T322PF5 PCNT200V1/8W1 PCNT33.2MMST3906MMST39041/10W1 PCNT100K101/8W1 PCNTBRIDGE RECTIFIERBRIDGE RECTIFIERMPSA421/8W1 PCNT10MMBTA92MMST39061 PCNT1/10W7.50K5 PCNT0.1UF100V2.00K1/10W1 PCNTCOMPARATOR50V220PF5 PCNT1 PCNT1/10W2.

14、00K100PF5 PCNT50VMURS160T3MOSFET N-CHANNELMTP45N0610 PCNT200V0.0056UFMMST39061/8W20.0K1 PCNT1/8W69.8K1 PCNT1 PCNT101/8WBAS211 PCNT1/8W69.8KMMBTA42IMBD4148MOSFET N-CHANNELMTP45N06MMBTA42IMBD41481 PCNT1/8W10COMPARATORMMBTA42MOSFET N-CHANNELMTP45N06MOSFET N-CHANNELMTP45N061 PCNT2.00KIMBD4148MMBTA92COMP

15、ARATOR1/10W1.13K1 PCNT1/8W1 PCNT10200V5 PCNT22PFMMST3906200V10 PCNT0.0056UFMMST3904IMBD4148MMST3904MMST390629.4K1 PCNT1/10WIMBD414810UF35V20 PCNTMC3307850V5 PCNT220PF0.1UF5 PCNT100VMMST3904MMST39045.0ALM339AMCOMPARATOR101 PCNT1/8W100K1/10W1 PCNT21.0K1/2W1 PCNTI609BRIDGE RECTIFIER22PF5 PCNT200V50V0.0

16、22UF10 PCNTMMST39060.1UF100V50V0.022UF5 PCNTIMBD414810 PCNT250V0.1UF0.1UF10 PCNT250V2SA18371001 PCNT1/10W2SC47931/10W1/10W1 PCNT100BAS212SC4793MPSA921 PCNT1/10W2741 PCNT1/10W10 PCNT50V0.1UFJACK50V5 PCNT220PF200V5 PCNT22PF220PF1 PCNT1001/10W35V220PF5 PCNT50V2UH47UF25V20 PCNT2N50641/2W16.5K1 PCNT2N506

17、425V22UF20 PCNT1/8W1 PCNT101/8W101 PCNT0.1UF10 PCNT200V101/8W1 PCNT0.1UF10 PCNT200V2SA19622SA19622SA19622SA19622SC52422SC52421/10W1 PCNT1001/10W4.75K1001/10W1 PCNTTRANSCONDUCTANCE OPAMP1/10W4.75K200V22PF5 PCNT12.7K1/10WJACK5K5 PCNT0.12W5 PCNT0.12WI268I8922W1/2W21.0KMMST39061 PCNTIMBD4148SENSORB-HICL

18、IP-BSIG-BSIG-A+15VRET-BSND-BRET-ASND-ALED RED BIPOLARMMST39041/10WIMBD41482W0.15 PCNT2W0.15 PCNT2W0.15 PCNT2W0.15 PCNT2W0.15 PCNT0.15 PCNTJACK0.22UF47.5KTRANSCONDUCTANCE OPAMP2SC52422SC5242MAC12HCM1 PCNT30.1KMMST39041/10W+15V0.1UF20.0KMC33078-14V47.5K7.50K1 PCNT1/10W24.9K1 PCNT1/10W1 PCNTIMBD4148MPS

19、A42BAS21SP-A32V10BZX84C101/10W1 PCNT2.49KP-REFIMBD4148+HI1 PCNT1 PCNT1N53990.022UF10 PCNT50V15.0K1 PCNT39.2K12.7K1/10W5.90K1 PCNT1/10W1 PCNT3.48K0.1UF50VVOLTAGE REGULATOR50V+5V+5V+15V1 PCNTSP-B1/10W1 PCNT1 PCNT5 PCNT1 PCNTCLIP-A1001 PCNT1/10W1001/10W1 PCNT1001/10W1 PCNT1001/10WIMON-B-MID12000UF20 PC

20、NT-HI1 PCNT1/8W10MUR1520MMST39061/10W-15V1 PCNT20 PCNT1001/8W1/8W-14VFB-B12.7K1 PCNT1/2W1 PCNT21.0K1/2W1 PCNT21.0KTIP31C10 PCNT50VMC330781 PCNT0.1UF1/8W1/8W-14V10M1/8W10105 PCNT105 PCNTFB-A5 PCNT1 PCNT50V1/8W1/8W1 PCNT243K1/10W1 PCNT39.2K1 PCNTSIG-B1/10WRET-B5 PCNT200V10 PCNT1/10W1 PCNT1 PCNT+5V7.50

21、K1 PCNT1/10W2001/10W12.7K2001 PCNTN-REFMC330781/10W1 PCNT2.00KP-REF+MID47.5K1 PCNT1 PCNT24.9K1 PCNT1 PCNT16.5K1/2W1 PCNT33.22W1025V1/10W1 PCNT24.9K1/10WAC-ON1 PCNT1 PCNT-15VP-REF1.74K10PF200V24.9K1/8W1 PCNT2.49K1/10W50V1/10W1 PCNT1/10W1 PCNT2.15K-15V0.1UF+15V1 PCNTIMBD41485 PCNT100PF50V200V1.74K1/10

22、W1 PCNT5.90K24.9K1/10W1 PCNT0.1UF15.0KLM339AM20 PCNTN-REF1 PCNT1/8W30.1K1/10W0.22UF33.21/8W1N53992W5 PCNT101/10W3831N539910 PCNT63V1020 PCNT50V1/10W0.15 PCNT1 PCNT1/10WMMST3904+15V1 PCNT1/10W10UF35V+5V9311/8W7.50K47.5K1 PCNT1/10W1/8W1/8W1 PCNT2.49K0.1UF383MMST3906102W10.0K1 PCNT33.21 PCNT1/8W30.1K30

23、.1K50V5.90K1.00K+15V50VMC3307810 PCNT+14V470UFMC33078MC3307810UF47.5KMUR15201/10W12000UF1/8W1 PCNT5.90KIMBD41481/10W1/10W1/8W1/10W1 PCNT33.23830.12WSENSOR0.1UF1 PCNT47.5K0.22UF1 PCNT5 PCNT2W1/10W1 PCNT5 PCNT2WMMST39041/10W2W2W-14V1/8W1/10W1 PCNT2.49K16V20 PCNT10 PCNT0.1UFMC3307820 PCNT-15VTH-A1 PCNT

24、1/8W1/10W2W1 PCNTMMST39067.50K47.5K10.0KA-LIMSP-B1 PCNT1/8W1/8W1.0M35V1 PCNT1/10W1 PCNT1 PCNT1/10WFB-B1/10W1 PCNT1/10W0.22UF50V+14V10MPSA921 PCNT1/10W2.49K1 PCNT24.9K1 PCNT1 PCNT12.7K0.1UF50V1/8W101 PCNT24.9K1 PCNT5 PCNT1/10WMUR152010 PCNT-14B5.90KBAS2112.7K0.1IMBD41480.11 PCNT1/10W50V1 PCNT-14V101

25、PCNT1/8W+5V47.5K1/10W1 PCNT1/10W1 PCNT1 PCNT1/10W5 PCNT2W0.1RET-A10 PCNT10 PCNT10.0K1 PCNT1 PCNT50V10 PCNT10 PCNT0.1UF50V1 PCNT20 PCNT1 PCNT1/10W1N4743A1 PCNTBAS212001N539950V10 PCNT0.022UF1/10W5 PCNT100V50V1/10W50V1 PCNT4.75K1/10W1/10W1 PCNT47.5K1 PCNT1/10W1/10W5.90K1/8WFB-A1/10W35VMC330781/10WIMBD

26、41481/10W1 PCNT7.50K1 PCNT69.8K1 PCNT243K1 PCNT47UF10 PCNT10V1.74K1 PCNT1/10W1/10W10.0K0.22UF10 PCNT20.0K+15V1/10W1 PCNT1 PCNT5 PCNT39.2K+15V4.75K1 PCNT1/10W+15V5 PCNT2WMMST3906200+5V1/8W1 PCNT1.0M+5V2.49K1/10W+MID20 PCNT12000UF63V20 PCNT1 PCNTAC-ON1/10WIMBD41481.74K2.21KMMST390610 PCNT35VMMST3906+5

27、V50V+14BN-REF-14V-15V3.01K10 PCNT0.1UF+HIIMBD41481000UF24V15A32V15A1 PCNT7.50K20.0K1/10W7.50K1 PCNT1/10W10UF20 PCNT1000UF20 PCNT35V5.0AAC-ON12000UF63V63V20 PCNT1 PCNT1.00K1 PCNT39.2K1 PCNTMC33078-14BB-LIM100PF50V1/10W1001 PCNT1/10W1/10W1 PCNT1002.49K+14V1/10WMC330781/10W5 PCNT10PF1/8W1 PCNT69.8K-15V

28、1 PCNT3.65K1/10W1/10W1 PCNT9315 PCNT0.1IMON-A1/10W1/10W1 PCNT9311/8WTH-B29.4K-14V16V10 PCNT10 PCNT1/10W+14B10UF20 PCNT1/10W+5V47.5K1/10W1 PCNTA-LIM39.2K1 PCNTMC330781 PCNT39.2KMC330781 PCNT1/10W93120.0K1/8W1 PCNT1/10W3.65K1 PCNT1 PCNT1 PCNT383101/10WIMBD41481/10W5 PCNT100PF1/10W1 PCNT50VLM339AM2N506

29、42N50640.1UF200V10 PCNT200V10 PCNT0.1UFMMST3906-14V+14VSND-AB-LOXLRMMST3904-15V35V0.22UF3.01KLED RED BIPOLARTRANSCONDUCTANCE OPAMPMC33078DPDT2W5 PCNT-MID1/8W50V5 PCNTCLIP-ALED GREEN0.22UF10 PCNT20.0K3.48K5KLED BLUEMMST39043SP-A1Q33MMST3904R712.49KQ23C42MUR1520B-LOR185R10120 PCNT10UF1 PCNTD18+MIDB-HI

30、R148D2722UF11B-LIM1 PCNT1/10W1C371/10WQ2220 PCNTR80Q28MMST390421001 PCNT32R104R1261 PCNTI85921Q44MMST39041D332SA1837Q5011/8W1 PCNTR155BZX84C10D31MMST3906Q49 0.022UF22PF7U111/10W11 PCNT1 PCNT1/8W10M1 PCNTJ1BJ1A47UF10 PCNT1210.0K1/10WC495 PCNTR101 PCNT1/10WJ5R120634R812.00K1/10WIMBD4148C5624VW14MAC12H

31、CMQ68R1831001 PCNT1/8W+15VGX5 AMPLIFIERB03/05/200806/06/2007DAVID GALVANPAT QUILTERAR-300001-00-B.ZIPSH-300001-00NONE02/27/2008G3.SCHDENISE DELARM1SI Target1Board Target1Board Target1Board Fiducial1Board Fiducial1C1P2P2P2P2P2P2P2P2P2SCHEMATIC DIAGRAM7PLOT DATE:DOF QSC AUDIO PRODUCTS, THAT MAY NOT4WI

32、THOUT 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 US

33、EDQSC AUDIO PRODUCTS.1CAD FILE NO.COSTA MESA, CALIFORNIACAGE CODE00PW4CONTRACT NO.DRAWNAUDIO PRODUCTS, LLC.6C1C1C1C1C1C1C1FEMALE312FEMALE312P1P1RTSRTS-AC2AC1+A1A1A1A1FEMALE2-2+1+1-A1FEMALE2-2+A1A1A1CCWWCCWWA1A1C1C1C1C1A1A1VOGNDV+-AC2AC1+-AC2AC1+VOUTVINP1P2GNDV-V+BAL_STRBALGNDV-V+BAL_STRBALVOGNDV+P1P

34、1P1P1P1P1P1P1P1P2P2P2GNDV-V+BAL_STRBALP1GNDV-V+BAL_STRBALP1P1P2P1P2P2P2P1P1P2A1P1P1P1AI Target12J2BJ2AJ2BJ2BJ2AJ2AJ2AJ2AJ2BJ2AJ2BJ2AJ2BJ2AJ2BJ2AJ2BJ2AJ2BJ2AJ2BJ2A33322323 323332323111111132362322323223232323332332311233233330.5 Vrms0.5 Vrmswhen gain is at maximumGain of 8.864 Vrms when gain is at ma

35、ximum52.5 Vrms1 Vrms, 1k Hz+3.4v-15.8v4.3v idle4.5v12.6v11.3v idle19.3v16v-15.8v4.0v5v5.8v1.6v1.6v (IDLE)5.8v+3v3.5v5.3v3v3.5v5.3v1.57v1.57v5.8v-16v0v16v2.44v5.3v16v13.2v13.85v15.6v60v-13.1v-13.85v-15.7v-60.3v-15v1.26v-1.26v0.57v15v0v50v50v50v60v60.3v61.5v61.5v125v60v0.5v0v5.3v62v-62v-125v-61.5v-124

36、.5v-125v-124.5v87mV16v16v-16v-2.27v-60.8v0.71v44mv44mvSPKR+ (WHITE)SPKR- (BLACK)SPKR+ (GRAY)SPKR- (BLACK)under the front heatsinkunder the rear heatsinkTURN ON ON POSITIVE PEAK5.3v15v WHEN INACTIVE0v WHEN INACTIVETURN ON ON NEGATIVE PEAK-14v WHEN INACTIVETroubleshoot notes:1. Power specs: a. 8 ohm: 500 W = 63 Vrms, Input sen = 1.2 Vrms b. 4 ohm: 700 W = 52.5 Vrms, Input sen = 1.00 Vrms2. Output gain: 34.4 dB = 52.5 Vrms3. Idle current: 0.3A; short limit current: 3.3A /CH, 6A /2CH (120V unit)4. Amplifier would start with an AC voltage above 50 V.125v62v-62v-125v125v62vRadioFans.CN 收音机爱 好者资料库