QSC-MX1000A-pwr-sch 维修电路原理图.pdf

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1、NOTES.TOLERANCE 20% FOR ELECTROLYTIC TYPES, 10% ON OTHER TYPES.DISPLAY PCBINPUT PCB101-199201-299301-399401-49931-49501-599601-69951-69PCB NUMBER DESCRIPTION CH 1 PARTS CH 2 PARTS PARTS IN COMMON125 W, 60 V MINIMUM, ON-RESISTANCE 0.030 OHMS MAX.SCHEDULE OF TEST POINTSETCJ 502-1J 502-1 J 602-1 NEGATI

2、VE LIMITING VOLTAGEJ 502-2 J 602-2 POSITIVE LIMITING VOLTAGEJ 502-4 J 602-4 AMPLIFIER LOOP OPAMP OUTPUTAMP PCBPC-004103-00AC PCB5. Q 503, 504, 603, 604 ARE SWITCHING FETS. QSC P/N QD-000031-QD.1K1N49344.7V1N4744A-15V+15 V-OPAMP1N4744A-15V-15V-OPAMP4.7V1K1N4744A-15VPC-001511-00PC-001512-00PC-001513-0

3、0553284+15 V-15 V10K10KA21.5K-.5W75K450-5W1N4934.0022AJ 502-3 J 602-3 NOT USED3. ALL CAPACITORS 100V UNLESS NOTED.2. ALL RESISTORS 1/4-WATT, 5% UNLESS NOTED.1. CH B IDENTICAL TO CH A, EXCEPT PART NUMBER SEQUENCE R 601, 602 ETC.10-29J 502-1J 502-2J 502-6 J 602-6 SWITCHED POS AMPLIFIER RAIL-CAUTION, H

4、IGH VOLTAGEJ 502-8 J 602-8 SWITCHED NEG AMPLIFIER RAIL-CAUTION, HIGH VOLTAGE1N4744A-15V22-1W2SA1302.22-3W2SC328122-1W2SA1306B2SC3298B.102.7-2WDGS.10HEATSINKGROUNDSPEAKER BUSAUDIO OUTPUT STAGE22 FP3K-2WSOURCE REFDGS 22 FP2.7-2W.10.22-3W3 PL3 PL3 PL3 PLMUR 810MUR 810T7T8GATESOURCE REFGATE DRIVERLOSS-O

5、F-SATSHUTDOWNT9HIGH RAILIC-000008-00T4SLEWNEG SUPPT6BOOTSTRAP CAPT1REF VOLTT2LOW RAILT3SHUTDOWNT5T6T7GATEGATE DRIVERLOSS-OF-SATSHUTDOWNIC-000009-00T5GATE PWRT4SLEWT3SHUTDOWNT2LOW RAILT1REF VOLTSOURCE REFCOMPARATORJ 502-6J 502-8U 501Q 504C 50961BR 501Q 502Q 501Q 508Q 509Q 510Q 505Q 506Q 507U 502Q 503

6、D 501C 501TO RECT BR 502QD-000031-QDQD-000031-QDJ 502-4100BIAS25 C.0150 OHMBIASNETWORKBIASVR 501D 50615000-50V15000-50V15000-50V12K1N49341N49342K2K15A-125V15A-125VJ 50134BR 502F 502F 50415A-125V15A-125V5C 51115000-50V2uH5.6-2WL 501.10J 52-6TO RECTBR 501J 52-5SPEAKER OUTPUTSPEAKER COMMONK 501NCNOQSC

7、PARTSW-000029-SWTRANSFORMER CENTER TAP212K10K-2W100K220 NP1N4004UTILTO PWR-PROT LED1N4004SPKR-BUS100K1N4004100KJ 52-2, CH BJ 52-3, CH BHEATSINKGROUNDIN54021N540210-2WAUDIO INPUT STAGE1503.3-1W1N4934TO +48 V1 (7)3 (5)2 (6)6 (2)7 (1)5 (3)PC-001510-00 AMPLIFIER PCBPC-001510-00 AMPLIFIER PCBGAIN SENDGAI

8、N RETURNGAIN GROUNDCLIP SEND+INPUT-INPUT1. BOARD SHIPPED WITH W 301-304, W 401-404 MOUNTED AS SHOWN.2. PARTS WITHIN DOTTED OUTLINE FOR USER MODIFICATION. SEE MANUAL.INPUT PCB NOTESINPUT PCB NOTESSPEAKER BUS-30 LEDSPEAKER BUSSIG GND-30 LEDRELAY CKTR 537 3K-2WRN 502-CRN 502-DU 503-A(U 603-B)C 521R 535

9、R 546D 510R 507C 506R 522D 514D 519D 521C 526C 520R 540R 541C 519R 548R 538R 542C 518C 523D 520C 524.022R 547U 503-B(U 603-A)R 511C 508D 505D 508VR 502VR 503D 507R 518R 517R 502R 501R 519R 520R 521D 513D 512R 515R 513R 514R 510C 525D 522D 511R 512R 536R 539D 509R 503C 503R 505R 508C 505D 502C 513R 5

10、25C 514R 527R 52310-2WR 532BR 503C 517D 516C 516R 531C 515D 518R 528Q 5112N 4410R 530RN 501 B-CRN 601 A-BRN 501-ARN 601-D100KQ 5122N 2907AD 515RN 501 DRN 601 CLD 501Q 5132N 4410270R 533C 512R 504C 510R 506C 507AJ 51-2J 51-1CH-ACH B7. BRIDGE RECTIFIER BR 503, 603, 1.5A, 100V.REV NOTES, REMOVE FOR REL

11、EASE PRINTS.V+AV-BV+BLAST USED REFERENCE DESIGNATORSBR 503-603C 526-626J 503-603L 501-601LD 501-601Q 513-613U 503-603VR 503-603BRIDGE RECTIFIERCAPACITORDIODEJUMPERINDUCTORLEDTRANSISTORRESISTORRESISTOR NETWORKINTEGRATED CIRCUITVARIABLE RESISTORCHANNEL A-B616-PIN MATE-LOK3452J 601TO ISOLATED SECONDARY

12、 WINDINGSSAME VOLTAGES AS CHANNEL A.SPEAKER OUTPUTSPEAKER COMMONCH B TRANSFORMER CONNECTIONSJ 52-2J 52-3CH B TRANSFORMER PTCCH B SPEAKER OUTPUTCH B IS LAID OUT ON RIGHT SIDE OF PC-001510-00CIRCUIT SAME AS CHANNEL A ABOVE.SCHMITT COMPARATORSCHMITT7.5K-2WR 101HEAVY LINE SHOWSMAIN SIGNAL PATHGAINVR 101

13、CH APROT-REDPWR-GRNCH ACH AAGNDGNDPROT-REDPWR-GRNCH BCH B+INPUT A-INPUT AV+ CH ASPKR SIG CH A-30ACH 1 +INJ 301J 31CH 1 -INGNDCH 2 -INCH 2 +INAJ 401C 402C 401TipRingGnd1/4RTSBARRIER STRIP1/4RTSEXPANDERPADSINPUTSPARALLELMONOBRIDGESTEREOC 301C 302INPUT JACKT 4011 (1)3 (4)6 (8)4 (5)R 401C 403W 401W 402T

14、 3013 (4)1 (1)4 (5)6 (8)R 301C 303W 302W 301PADS FOR INPUTACCESSORY PCBPIN 1 V+APIN 2 SP-APIN 3 GNDW 303W 304PIN 8 GNDPIN 4 +1N APIN 5 +OUT APIN 6 -IN APIN 7 -OUT APIN 9 CLIPCLIP AAC 101CH BYEL1234567C 201V- CH B8 X 2 PIN HEADERKEYW 403W 404PIN 10 V-APIN 11 V- BPIN 12 CLIP BPIN 13 GNDPIN 14 -0UT BPI

15、N 15 -IN BPIN 16 +OUT BPIN 17 +IN BPIN 18 GNDPIN 19 SP-BPIN 20 V+BPIN 21 SPAREPIN 22 SPARECLIP-BA910R 103LD 101LD 104LD 201LD 204AAAJ 32AR 32J 33 J 1016-LINEPC-001512-00 MX-A SERIES INPUT PCBPC-001512-00 MX-A SERIES INPUT PCBPC-001511-00 MX-A SERIES DISPLAY PCBPC-001511-00 MX-A SERIES DISPLAY PCBR 3

16、120 K24 KC 31220 pFSPKR GND-30YELLD 102C 102.0033J 101 J 5037 X 2 PIN HEADERJ 201 J 603 (CH B)1KR 545A10KRN 502-ARN 502-B10KC 5221N49341N4934.001.001A47R 544SCHEMATIC, 2-CH POWER AMPLIFIER, MX-1000-ASCHEMATIC, 2-CH POWER AMPLIFIER, MX-1000-A3K-5W3K-5W3K-5W3K-5W1.5K75-1WPART NUMBERING SCHEDULE FOR PC

17、BS USED IN MX-1000-A:3.3-1W3.3-1W1N4934R 52410-2WR 52610-2WR 509 22K-1WSW-000031-SWQSC P/NSW-313. TRANSFORMER PIN NUMBERS: 1-6 TRIAD TY-144P (1-8 JENSEN JT 8043)C 504 47-50VA(6,7)A(6,7)GNDGND-INPUT CH B+INPUT CH B111213147.5K-2WR 201ASPKR SIG CH BV+ CH B1516R 2034. R 516, 616 IS POSITIVE TEMPERATURE

18、 COEFFICIENT RESISTOR, MTD TO HEATSINK. RESISTANCE 100 OHM COLD, RISING AT 85 C. QSC P/N RE-000000-PT.6. ZENERS D 517, 617, MARKED 7.5 V, LOW LEAKAGE, QSC P/N QD-0007.5-ZT.8. PARTS MARKED WITH TRIANGLE REPLACE WITH EXACT TYPE ONLY.9. PARTS WITHIN DOTTED OUTLINE VOLTAGES GREATER THAN 42V.316857101112

19、9217634RELAY CKT4BR 101R 102LDCLIPRED103RELAY STATUS10 K47 pFAC 202.0033LD 202SPKR GNDGAIN RETURNGAIN GROUNDGAIN SEND-INPUTGAINCH BVR 2011011129+INPUT8CLIP SENDCLIP-REDCH BBR 201LD 2035R 202 10 K47 pFRELAY STATUSAV-AV- CH A82SEE PART NUMBERING SCHEDULE.D 523D 524D 524-6242.2K 2.2K2.2K2.2KRN 503-A-BR

20、N 503-CRN 503-DC 527 220pFC 52815 pFR 543.12330K330K7.5 VXF-PTC3K-2WR 534D 517R 529J 51-3J 51-4R 516 PTC 90-C12KR 54982 KR 549-649RN 503-603901-UP (CH 1, CH2 ON SAME PCB)13141413+42 V RAIL+42 +84 V SWITCHED BUS+84 V RAIL-42 -84 V SWITCHED BUS-42 V RAIL-84 V RAILF 501 (603)F 503 (601)T-15 (T-18)T-14

21、(T-17)T-13 (T-16)T-9 (T-12)T-8 (T-11)T-7 (T-10)6-PINMATE-LOKXFORMCH A CH BREV B3, 11-4-91, PER PC-001510-00 REV B, PC-001511-00 REV B, PC-001512-00 REV BDOC NO. SH-001010-00 FILE SH-1010B.FCD, SEED FILE SH1010B3.FCD470 pF470 pF634634470 pF470 pF10K10K68 pF68 pF47NP-10V18 pF432220-25V470-16V1W1W47-50

22、V10V10-35VRE-000000-VPTipRingGnd220-25V200VTO -84 V RAILTO -42 V RAILNOTES: UNLESS OTHERWISE SPECIFIEDAPPLICATIONUSED ONNEXT ASSYTOLERANCES ARE:DECIMALSANGLESDECIMALSDIMENSIONS PER ANSI Y14.5-1982UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN INCHES.-+O-+-+.XX.XXXDEBURR EDGES .XXX R MAXAUDIO PRODUCTS,

23、INC.DSCHEMATIC, MX 1000aSH-001010-00SH-001010-001NONEMX 1000aLG.1. PLOTTED AT 1/2 SCALE.WP-001001-00B4B4SH-1010B.FCDS1000B41.FCD-42 VRadioFans.CN 收音机爱 好者资料库120 VOLT AC PCB WIRINGRISK OF FIRE-REPLACE WITHFUSE ASMARKEDR901R902C901901902903904905F901906907908909910911912913914915SWITCH RETURN (RED)RISK

24、 OF FIRE-REPLACE WITHFUSE ASMARKEDR901R902C901901902903904905F901906907908909910911912913914915SWITCH RETURN (RED)RISK OF FIRE-REPLACE WITHFUSE ASMARKEDR901R902C901901902903904905F901906907908909910911912913914915SWITCH RETURN (RED)100 VOLT AC PCB WIRING230 VOLT AC PCB WIRINGAPROTO RELEASE, PHQ90191

25、4902903AC HI (SW)R 901FUSEPC TERMS913915904905906C 901.068250 VAC910911R 902907AC LO1.2K-5W908909912SCHEMATIC OF AC HOOKUP PCBPRIMARYSECONDARYTERM NOTERM NOAC VOLTSLEAD COLORLEAD COLORBLKBLK/WHTWHTBRNBRN/YELYEL0 Vac100 Vac120 Vac0 Vac100 Vac120 Vac(Coil on Leg One)(Coil on Leg Two)TEMPERATURE SENSOR

26、 PTCTEMPERATURE SENSOR PTCREDORGGRN/WHTGRN/WHTPURP/WHTPURP/WHTBLUBLUGRNWHT/REDWHT/ORGWHT/BLUWHT/BLUWHT/GRYWHT/GRNGRYBLU OR WHTBRN OR BLK120 VAC0 VACAC LINE CORDPC-001510-00 MAIN AMPLIFIER PCBJ 501PIN 1PIN 2PIN 3PIN 4BLU OR WHTBRN OR BLK0 VACAC LINE CORD0 VACAC LINE CORD100 VAC230 VACBRNBLUGRN/YELPC-

27、001511-00 DISPLAY AND GAIN CONTROLSJ 601J 52J 51PC-004103-00 AC HOOKUPPC-004103-00 AC HOOKUPPC-004103-00 AC HOOKUPJ 503J 603J 101J 201J 10PIN 4PIN 6PIN 5PIN 2PIN 1PIN 3PIN 4PIN 6PIN 5PIN 2PIN 1PIN 3PIN 3PIN 2PIN 5PIN 6RIBBON14 LINESRIBBON14 LINESRIBBON16 LINESNOT USEDNOT USEDNOT USEDAC SWITCHQSC P/N

28、 SW-000016-SWQSC P/N SW-000028-SW55C FAN SPEED THERMOSTATHEAT SINK MOUNTEDTO AC HIGHTO AC SWITCHTO AC SWITCHTO AC SWITCHJ 33PC-001512-00 INPUT JACKSBINDING POST SPEAKER TERMINALSBLACK REDRED BLACKCH 1CH 2QSC P/N MS-100003-FN3.125 AC FANSEE AC HOOKUPSSEE ACHOOKUPSQSC P/N WC-003070-00QSC P/N WC-003070

29、-00QSC P/N WC-003082-00THERMOSTAT WIRE ASSYPC-004103-00GRN OR GRN/YELGRN OR GRN/YELQSC P/N WC-003069-008-29-91POWER TRANSFORMER XF-001010-00T-1T-2T-3T-4T-5T-6T-7T-8T-9T-10T-11T-12T-13T-14T-15T-16T-17T-18T-19T-20T-21T-22B12-5-91PRODUCTION RELEASE PER ECO 1317, SGMPIN 4PIN 1NOT USEDNOT USEDNOT USED12A

30、 250V20A 250VNOT USEDNOT USEDNOT USED20A 250VC4-7-92REVISED PER ECO 1455, SGMSGMSGMSGMSGMDREVISED PER ECO 1579 LG9-23-92EREVISED PER ECO 1735 WR100/120VCOLDUSE 1 OHMCOLD230VUSE 2.5 OHMNOTES: UNLESS OTHERWISE SPECIFIEDAPPLICATIONUSED ONNEXT ASSYTOLERANCES ARE:DECIMALSANGLESDECIMALSDIMENSIONS PER ANSI

31、 Y14.5-1982UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN INCHES.-+O-+-+.XX.XXX1/2.02.010DEBURR EDGES .XXX R MAXAUDIO PRODUCTS, INC.D1SCHEMATIC/WIRINGSH-001011-00SH-001011-00EESH1011E1.FCDNONESH1011D1.FCDWP-001003-XXMX 1000aDIAGRAM MX 1000a2-15-93FAN SPEED THERMOSTAT (ORG)FAN (GRY)XFMR T-4 (BRN)XFMR T-

32、1 (BLK)0 VAC XFMR T-3 (WHT)0 VAC XFMR T-6 (YEL)AC LO (WHT OR BLU)FAN SPEED THERMOSTAT (ORG)FAN (GRY)100 VAC XFMR T-2 (BLK/WHT)100 VAC XFMR T-5 (BRN/YEL)100 VAC XFMR T-5 (BRN/YEL)100 VAC XFMR T-2 (BLC/WHT)0 VAC XFMR T-3 (WHT)0 VAC XFMR T-6 (YEL)AC LO (WHT OR BLU)FAN SPEED THERMOSTAT (ORG)FAN SPEED THERMOSTAT (ORG)FAN (GRY)FAN 120 VAC (GRY)120 VAC XFRMR T-1 (BLK)120 VAC XFMR T-4 (BRN)FAN (GRY)XFMR T-3 (WHT)XFMR T-4 (BRN)XFMR T-5 (BRN/YEL)XFMR T-2 (BLK/WHT)FAN SPEED THERMOSTAT (ORG)FAN (GRY)XFMR T-1 (BLK)0 VAC XFMR T-6 (YEL)AC LO (AC CORD BLU)FAN SPEED THERMOSTAT (ORG)RadioFans.CN 收音机爱 好者资料库