QSC-EX800-pwr-sch 维修电路原理图.pdf

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1、POWER AMPLIFIER CIRCUITBAL INPUTOPTOCELLLIMITERGND REF+INPUTAGNDDETECTORCLI PCLIPPWR-ONTHERMALSENSORSPKRTHERMAMPLIFIERMUTINGDC FAULTDETECTORON/OFFMUTINGTO SPKRHOUSEKEEPINGPOWER SUPPLY+24 V+15 V-24 V-15VMUTEPOWER AMPLIFIER CIRCUITBAL INPUTOPTOCELLLIMITERGND REF+INPUTAGNDDETECTORCLI PCLIPPWR-ONTHERMAL

2、SENSORSPKRTHERMAMPLIFIERMUTINGDC FAULTDETECTORON/OFFMUTINGTO SPKR+24 V+15 V-24 V-15VMUTESPEAKERTERMINALSSPEAKERTERMINALSCOOLINGFAN24 VDCLEVEL DISPLAY-30 -10TEMP/PROT DISPLAYLIM/CLIP DISPLAYRED LEDRED LEDYEL LEDSTHERMALFLASHERDISPLAYDRIVERCH 1 GAINBALANCEDINPUT11-POSITIONPOWER-ON DISPLAYGRN LEDSTEP D

3、RIVERLEVEL DISPLAY-30 -10TEMP/PROT DISPLAYLIM/CLIP DISPLAYRED LEDRED LEDYEL LEDSTHERMALFLASHERDISPLAYDRIVERCH 1 GAINBALANCEDINPUT11-POSITIONPOWER-ON DISPLAYGRN LEDSTEP DRIVERCH 1CH 2FRONT DISPLAY PCB14-PIN J 101J 20126 PINJ 1IN/OUT BUSCONNECTORIN/OUT BUSCONNECTORCH 1 +INPCH 1 -INPCH 1 GNDCH 1 SPKR M

4、ONCH 1 CLIP MONCH 1 THERM MONCH 1 PROT MONCH 1 PWR MON+24 VDC+15 VDC-15 VDC-24 VDCCH 2 SPKR MONCH 2 CLIP MONCH 2 THERM MONCH 2 PROT MONINPUTTERMINALSINPUT BOARD14 PIN26-PIN J 32NO CONNECTION TO SECOND HOUSEKEEPINGMASTER HOUSEKEEPING POWERCOMMON HOUSEKEEPING SECONDARY.SPEAKERBOARDAC POWERTRANSFORMERA

5、C FUSEAC VOLTAGESELECTORCH 2 SECSTO +50% POWER SUPPLYTO +50% POWER SUPPLYJ 50_, 14-PINJ 60_, 14-PINPOWER AMPLIFIER CH 1POWER AMPLIFIER CH 2OUTPUTRELAYOUTPUTRELAYFAN-24 V18 VACCT18 VACPTCPTCTO EACH CH THERM SENSEJ 5_, 5 PIN?FAN SPEEDCONTROLJ 5_, 2 PIN, OR COMBINE WITH 5-PIN?POWER AMP BOARD, BOTH CHJ

6、501, 6-PIN MATELOKCH 1 MAIN SECS0.25-INCH TABSPIN 3PIN 2PIN 5PIN 6PIN 1PIN 4T 501T 502J 501, 6-PIN MATELOK0.25-INCH TABSPIN 3PIN 2PIN 5PIN 6PIN 1PIN 4T 501T 502PC-004001-00PC-004101-00PC-004002-00PC-004104-00PC-004103-00BLOCK DIAGRAM, EX-800REV A, 3-18-91, QSC AUDIO PRODUCTS INC, DOC NO SH-004100-01

7、, FILE SH4100A2.FCDPART NUMBERING SCHEDULE FOR PCBS USED IN EX-800POS VOLTAGENEG VOLTAGERECT (1)FUSE (2)POS VOLTAGENEG VOLTAGERECT (1)FUSE (2)RadioFans.CN 收音机爱 好者资料库220035V-15 V REG-24 V UNREG100+24 V UNREG+15 V REG78153211N4746, 18V1N4746, 18V100220035V7915321+24 V+15 V-15 V-24 V-24 V24 V BRUSHLESS

8、 FAN2.7K2.7K2.7K2.7K47K.01U 52D 53D 52U 51C 54C 53C 56C 55D 51RN 51C 52Q 522N2907Q 532N4410R 52R 51C 57C 51Q 512SC3298B18 Vac118 Vac2CT3PTC-60CTHERMALLYCONNECTEDXF PTCXF PTCTO Q 607J 51R 6981N4004BR 51100-35V47-10NP35 V35 VSCHEMATIC, 2-CH POWER AMPLIFIER, EX 800SCHEMATIC, 2-CH POWER AMPLIFIER, EX 80

9、0SHEET 1, HOUSEKEEPING POWER AND FAN SPEED CONTROLSHEET 1, HOUSEKEEPING POWER AND FAN SPEED CONTROL+23V ON/OFF ENABLETRANSFORMER THERMAL SENSORTHERMAL BUS TO FAN SPEED CONTROLJ 52-1J 52-4TO SHEET 2NOTES.1. ALL RESISTORS 1/4-WATT, 5% UNLESS NOTED.2. ALL CAPACITORS 100V UNLESS NOTED.TOLERANCE 20% FOR

10、ELECTROLYTIC TYPES, 10% ON OTHER TYPES.PC-004001-00PC-004002-00DISPLAY PCBINPUT PCBSPKR PCB101-199201-2991-29301-399401-49931-49501-599601-69951-69701-799801-89971-99901-UP (SAME BOARD FOR CH 1, CH2)PCB NUMBER DESCRIPTION CH 1 PARTS CH 2 PARTS PARTS IN COMMON125 W, 60 V MINIMUM, ON-RESISTANCE 0.030

11、OHMS MAX.SCHEDULE OF TEST POINTSETCJ 502-1CH-1CH 2J 502-1 J 602-1 NEGATIVE LIMITING VOLTAGEJ 502-2 J 602-2 POSITIVE LIMITING VOLTAGEJ 502-4 J 602-4 AMPLIFIER LOOP OPAMP OUTPUTPART NUMBERING SCHEDULE FOR PCBS USED IN EX-1600:PC-004104-00PC-004101-00AMP PCBPC-004103-00AC PCB3. BRIDGE RECTIFIER BR 51,

12、1.5A, 100V.4. R 598, 698 IS POSITIVE TEMPERATURE COEFFICIENT RESISTOR MOUNTED TO HEAT SINK.6. ZENERS D 503, 504, 603, 604 MARKED 7.5 V TESTED FOR LOW LEAKAGE, QSC P/N QD-0007.5-ZT.7. ZENERS D 509, 513, 609, 613, 6.2V-500mW, TESTED FOR LOW LEAKAGE, QSC P/N QD-000024-QD.J 502-3 J 602-3 NOT USEDJ 502-6

13、 J 602-6 POS AMPLIFIER RAIL-HIGH VOLTAGEJ 502-8 J 602-8 NEG AMPLIFIER RAIL-HIGH VOLTAGE5. PARTS MARKED WITH TRIANGLE MUST BE REPLACED WITH EXACT TYPE ONLY.8. PARTS ENCLOSED WITHIN DOTTED OUTLINE HAVE VOLTAGES GREATER THAN 42V.+23V ON/OFF ENABLETRANSFORMER THERMAL SENSORTHERMAL BUS TO FAN SPEED CONTR

14、OLTO SHEET 354ABCDAUDIO PRODUCTSPHQ 5-15-911 3SCHEMATIC EX 800DRAWINGB PROD RELEASE PER ECO 1107 GLFCREVISED PER ECO 1158LG.7-9-91SA/SGM5-29-91SGMSGM5-29-91W.R. /DREVISED PER ECO 1128RDSA3.3-1WR 53HEAT SINK GROUNDAUDIO AND POWER GROUNDSELGREVISED PER ECO 12627-26-91SGMRE-000006-PTRESISTANCE 100 OHM

15、COLD, RISING AT 55 C. QSC P/N RE-000006-PTSGM11-6-916-10-92FREVISED PER ECO 1508 SGMAPPLICATIONUSED ONNEXT ASSYWP-004101-20EX800SGMGREVISED PER ECO 1602 WR10-22-92REV D, 10-22-92, FOR PC-004101-00DOC NO SH-004101-02 FILE NO SCH800G*.FCD1342LAST USED REF. DESIGN.D51 - 53, D513, 613F504, 604J51, 52, J

16、503, 603K501, 601L501, 601Q51 - 53, Q510, 610R51 - 53, R544, 644, R598, 698, R599, 699RN51, RN502, 602U51, 52, U506, 606VR503, 603BR 51, BR 502, 602SGMHREVISED PER ECO 2009LG./RAB180KJREVISED PER ECO 2371 MP (EFF. 7-28-94)5-11-94SGMFAN BLKFAN REDSH-004101-02 1 KSGMKREVISED PER ECO 2393 MP (EFF. X-28

17、-94)7-20-94 SH-004101-02 KSCH800J1.FCDSH0800K1.FCDC51 - 57, C526, 626RadioFans.CN 收音机爱 好者资料库ASPKR SIGGNDGNDGNDA470-1WCLIP10K-2W470-10V470-10V10K-2WTO +15VTO +15 VTO -15 V5K5KSPEAKER BUS1N400410-25VTO -24 V470-1WPTC-60CTHERMALLYCONNECTEDT 6+15 VT15-15 VT16PROCESSING BUFFER50C +O.5V90C +8VTHERM ADJUST

18、, 0.5-8.5VTHERMAL SENSINGT 1T 3GROUNDMUTING INPUT CAP.TIMING CAP.T 2RELAYDRIVERT 4ON-OFF MUTING DELAYRELAYMUTE -24VRUN +15VMUTING BUSRUN 0VMUTE +8VSHUTDOWN MUTINGIC-000010-00MUTE BUST 5T 7THERMAL SENSE, 0-8VT 8THERMAL BUS, 0-8VT 9OP-AMP OUT - HF PROTECTSHUTDOWN DETECTORSTO MUTINGDC PROTECT SENSET10T

19、HERMAL LIMITINGT11IDLE -1.2VCLIP +3V PEAKS0-3Vac NORMAL AUDIO4.5-6.5Vac CLIPPING PEAKSMUTE +4.5VLIMITING THRESHOLD +4.5VCLIP RECTIFIER-BUFFERHIGH FREQDC RECTIFIERTHERMALT12T13T14CLIP BUSOP-AMP OUTOPTOCELLT25POSITIVE DRIVER, +0.6V IDLET24NEGATIVE DRIVER, -0.6V IDLET23POSITIVE BYPASS, +7.5V NORMAL, +2

20、.5V SHORTPOSITIVE BIASCONTROLLERT22POSITIVE CURRENT FEEDBACK +3V PEAKT21POS CURRENT TRIMMERT20OUTPUT VOLTAGE FEEDBACKLOAD IMPEDANCESENSINGT19NEGATIVE TRIMMERBIAS ENABLENEGATIVE BIASCONTROLLERT18NEGATIVE CURRENT FEEDBACK, -3V PEAKT17NEGATIVE BYPASS, -7.5V NORMAL, -2.5V SHORTJ 502-1J 502-4J 502-2+ CUR

21、R LIM+ CURR LIM- CURR LIM- CURR LIM- CURR LIMR 598TO Q 508R 530R 528C 513VR 503VR 502R 529C 518U 503R 527C 515C 514C 516R 53147-50V47-50VD 512.0033100BIAS1N40041N400425 C.0150 OHMBIASNETWORKBIASJ 502-3VR 501R 599C 504D 505D 506C 51222-1W2SA1302.22-3W2SC3281IN540222-1W4.7-1W4.7-1W2SA1306B2SC3298B.103

22、.9-2W1N54022uH.10HEATSINKGROUNDAUDIO OUTPUT STAGE.22-3W3 PL3 PL3 PL3 PLSPEAKERCOMMON10A-250V10A-250VTRANSFORMERCENTER TAPSPEAKEROUTPUTNCNOQSC PARTSW-000029-SWTO -24 V5.6-2WJ 502-6J 502-8J 5016-PIN MATE-LOK346125C 511BR 501F 501F 503K 501Q 502R 504R 502Q 501R 519R 518R 520R 521R 522Q 508Q 509Q 510D 5

23、08Q 505Q 506Q 507R 516R 515R 517D 507L 501R 525C 506R 524C 5075.6-2WR 523D 501JUMPER+70 V-70 VTO -70 V RAILD 502JUMPERTO RECT BR 50147K-1WR 542TO -15VC 510R 508R 507N.C.8200-80V8200-80VN.C.N.C.4.7K-1WSCHEMATIC, EX-800, SHEET 2, AMPLIFIER CHANNEL ASCHEMATIC, EX-800, SHEET 2, AMPLIFIER CHANNEL A+23V O

24、N/OFF ENABLETRANSFORMER THERMAL SENSORTHERMAL BUS TO FAN SPEED CONTROLTO SHEET 1J 52-5J 52-62 OF 3390390R 532, 47K+INPUTGND REFPWR-ONAUDIO INPUT STAGEHEAVY LINE SHOWSMAIN SIGNAL PATHSPEAKER BUS47K-1WR 533VTL 5C4U 50468 pA553210K-475K47BA356847+15 V-15 VDC21A.002247-10NPC 525U 506-BR 541RN 501U 506-A

25、C 520C 521R 538R 536R 537C 524R 540C 522R 539A7914590R 54427K4.7 K46427p12.1K-.5W.10220-10NPC 517R 543THERMALMUTE14-PIN RIBBONJ 50310811651213330KTO +70 V RAIL1N47356.2 VD 51327pC 526SH-004101-02 2 KSH-004101-02 KSH0800K2.FCD1N47356.2 VD 511D 5091N 4148D 5101N 4148ASPKR SIGGNDGNDGNDA470-1W10K-2W470-

26、10V470-10V10K-2WTO +15V+24 V+15 V-15 V-24 V10-25VTO +15 VTO -15 V5K5KN.C.N.C.N.C.N.C.14-PIN RIBBONT 6+15 VT15-15 VT16PROCESSING BUFFER50C +O.5V90C +8VTHERM ADJUST, 0.5-8.5VTHERMAL SENSINGT 1T 3GROUNDMUTING INPUT CAP.TIMING CAP.T 2RELAYDRIVERT 4ON-OFF MUTING DELAYRELAYMUTE -24VRUN +15VMUTING BUSRUN 0

27、VMUTE +8VSHUTDOWN MUTINGIC-000010-00MUTE BUST 5T 7THERMAL SENSE, 0-8VT 8THERMAL BUS, 0-8VT 9OP-AMP OUT - HF PROTECTSHUTDOWN DETECTORSTO MUTINGDC PROTECT SENSET10THERMAL LIMITINGT11IDLE -1.2VCLIP +3V PEAKS0-3Vac NORMAL AUDIO4.5-6.5Vac CLIPPING PEAKSMUTE +4.5VLIMITING THRESHOLD +4.5VCLIP RECTIFIER-BUF

28、FERHIGH FREQDC RECTIFIERTHERMALT12T13T14CLIP BUSOP-AMP OUTOPTOCELLT25POSITIVE DRIVER, +0.6V IDLET24NEGATIVE DRIVER, -0.6V IDLET23POSITIVE BYPASS, +7.5V NORMAL, +2.5V SHORTPOSITIVE BIASCONTROLLERT22POSITIVE CURRENT FEEDBACK +3V PEAKT21POS CURRENT TRIMMERT20OUTPUT VOLTAGE FEEDBACKLOAD IMPEDANCESENSING

29、T19NEGATIVE TRIMMERBIAS ENABLENEGATIVE BIASCONTROLLERT18NEGATIVE CURRENT FEEDBACK, -3V PEAKT17NEGATIVE BYPASS, -7.5V NORMAL, -2.5V SHORTJ 602-1J 602-2+ CURR LIM+ CURR LIM- CURR LIM- CURR LIMJ 602-4470-1W1N4004R 628R 630CLIPC 618R 629VR 602VR 603C 613R 62747-50V47-50VC 615C 614U 603C 616R 631J 603D 6

30、121N4004.00331N4004100BIAS25 C.0150 OHMBIAS NETWORKBIASJ 602-3VR 601R 699C 604D 605D 606C 61222-1W2SA1302.22-3W2SC3281IN540222-1W4.7-1W4.7-1W2SA1306B2SC3298B.103.9-2W1N54022uH.10HEATSINKGROUNDSPEAKER BUSAUDIO OUTPUT STAGE.22-3W3 PL3 PL3 PL3 PLSPEAKERCOMMON10A-250V10A-250VTRANSFORMERCENTER TAPSPEAKER

31、OUTPUTNCNOTO -24 V5.6-2WJ 602-8J 602-6J 6016-PIN MATE-LOK346125BR 601F 601F 603K 601C 611Q 602R 604R 602Q 601R 619R 620R 621R 622Q 608Q 609Q 610D 608Q 605Q 606Q 607R 616R 615R 617D 607R 618L 601R 6255.6-2WR 623C 606R 624C 607D 601D 602JUMPER8200-80V+70 V-70 VTO -70 V RAILJUMPERC 610TO RECT BR 60147K

32、-1WTO -15VR 6428200-80VR 608R 607N. C.N.C.N.C.4.7K-1WTO -24 VSCHEMATIC, EX-800, SHEET 3, AMPLIFIER CHANNEL BSCHEMATIC, EX-800, SHEET 3, AMPLIFIER CHANNEL B+23V ON/OFF ENABLETRANSFORMER THERMAL SENSORTHERMAL BUS TO FAN SPEED CONTROLTO SHEET 1J 52-2J 52-33 OF 3390390R 632, 47KJ 602-4+INPUTGND REFPWR-O

33、NAUDIO INPUT STAGEHEAVY LINE SHOWSMAIN SIGNAL PATHSPEAKER BUS47K-1WJ 602-4R 6331497A75K47321.0022C 622R 640R 638C 621C 620R 639R 637U 606-AR 641590A847+15 V-15 VC68 pA47-10NPC 624R 636C 625553210K-4B56DRN 601U 606-BVTL 5C4AU 60427KR 643R 64427p12.1K-.5W.104.7K464131256111342220-10NPC 617THERMALMUTE8

34、10TO +70 V RAIL330K1N47356.2 VD 61327pC 626SH-004101-02 3 K SH-004101-02 KSH0800K3.FCD1N47356.2 V1N 41481N 4148D 609D 610D 611SIG. GND+ INPUT- INPUT1KTHERM BUS, 0-8VPWR-ON, 0-15V10uF+2N4410PWR GNDSPKR SIGNAL, 5V PKCLIP-LIM BUS, 0-4VMUTE BUS, 0-8V553210K100p100p1.5KREG. -15VSIG. GNDSIG. GND+ INPUT- I

35、NPUTTHERM BUS, 0-8VPWR-ON, 0-15VSPKR SIGNAL, 5V PKCLIP-LIM BUS, 0-4VMUTE BUS, 0-8VSIG. GNDPWR GNDC101RN10110K D(C)10K B10K C(D)10K AC102R102U101 B485671235VR101112319152117Q103R112C10846782419161814GAINCH 2 PINSNOTES1. ALL RESISTORS 1/4 WATT UNLESS SPECIFIED.2. ALL CAPACITORS 25V UNLESS SPECIFIED.3.

36、 CH 2 RESISTOR NETWORK SECTIONS ( ) WHEN DIFFERENT.4. CH 1 COMPONENTS NUMBERED 101-1995. CH 2 COMPONENTS NUMBERED 201-299.6. PARTS IN COMMON TO BOTH CHANNELS NUMBERED 1-99.7. U102, 202 ROHM BA6124 OR SAMSUNG KA2284/8513GRN1K-DRN103LD105PWR ONBA6124100YELYEL10uF330KR105LD103U102C105R107536R108LEVEL-3

37、0-10LD10410KR10610uFC1063.9KR109RN 1041K-C-24V+24VAC RELAY 2AC RELAY 1REG. +15V252610912J 1 26-PINSSCHEMATIC, EX-SERIES DISPLAY BOARD.8. LD 101, 102, HIGH-EFFICIENCY RED LED.9. LD 103, 104, HIGH-EFFICIENCY YELLOW LED.10. LD 105, HIGH-EFFICIENCY GREEN LED.22PC-004001-00, REV A.EX-SERIES DISPLAY BOARD

38、SCHEMATIC DIAGRAM1 OF 1PAT QUILTER 6-19-90A PROD REL PER ECO 7561K-DR113634B REVISED PER ECO 1603 WR6-19-90SH-004001-00 1 BSH-004001-00 BFCAD: 004001SHSH4001B1.FDC9-29-9210uf10uf+4.7uf NP55321K536AR110R103R104C2C1C107U101 A123PWR GNDPWR GNDSPKR SIGNAL, 5V PKCLIP-LIM BUS, 0-4VRED100MPS2907.00331N4004

39、2N441014129RN10210K-D(A)10K-C(B)10K-B(C)10K-A(D)Q102Q101D101R101LD101RN1031K-C1K-B1K-A56MUTE BUS, 0-8VC103+470 10VC104REDLD102LIM-CLIP1.5KR1111K-B1K-AC 10910uFQ 1042N 44104.7KTHERM BUS 0-8VTO AMP +INPUTTO AMP -INPUTVcc SENSE RSIG. GND131011378-15V REG+24V UNREG-24V UNREG214J101, 201 14-PINS+15V REGT

40、EMP-PROTCH 1 +INJ 31CH 1 -INGNDCH 2 -INCH 2 +INJ 32GNDGNDCH 1 SPKR SIGGNDGND-24 V+24 V-15 V REG+15 V REGGNDGNDCH 1 MUTECH 2 MUTECH 1 PWR-ONCH 2 PWR-ONCH 1 CLIP-LIMCH 2 CLIP-LIM1. ALL RESISTORS 1/4W, 5%.2. ALL CAPACITORS 100V3. J 32, 26-PIN CONNECTOR, TO J 1 ON FRONT DISPLAY BOARD PC-004001-00.4. PAR

41、TS FOR CH 1 NUMBERED 301-399.5. PARTS FOR CH 2 NUMBERED 401-499.6. PARTS IN COMMON TO BOTH CHANNELS NUMBERED 31-49.8. PARTS WITHIN DOTTED OUTLINE FOR USER MODIFICATION. SEE MANUAL.SCHEMATIC, EX-SERIES STANDARD INPUT BOARD.7. BOARD SHIPPED WITH W 301-304, W 401-404 MOUNTED AS SHOWN.470 p470 pW 303W 3

42、04SHIPPED XLR PIN 2 HIMOVE W 303, 304 TO ALTPOSITION FOR PIN 3 HI470 p470 pSHIPPED XLR PIN 2 HIMOVE W 303, 304 TO ALTPOSITION FOR PIN 3 HIC 402C 401W 403W 404SW 31INPUTSPARALLELMONO-BRIDGEW 401PIN 1 V+APIN 2 SP-APIN 3 GNDPIN 8 GNDPIN 4 +1N APIN 5 +OUT APIN 6 -IN APIN 7 -OUT APIN 9 CLIPKEYPIN 10 V-AP

43、IN 11 V- BPIN 12 CLIP BPIN 13 GNDPIN 14 -0UT BPIN 15 -IN BPIN 16 +OUT BPIN 17 +IN BPIN 18 GNDPIN 19 SP-BPIN 20 V+BPIN 21 SPAREPIN 22 SPAREW 301T 3013 (4)1 (1)4 (5)6 (8)T 4011 (1)3 (4)6 (8)4 (5)W 402ANCR 301C 303C 403R 401NCACH 1 THERMALCH 2 THERMALCH 1 AC RELAYCH 2 AC RELAYCH 2 SPKR SIGPADS FOR LEVE

44、L 1-AOR 2-A ACCESSORY PCBW 305W 306W 406W 405A3-POSXLR231AJ 301AXLR231AJ 401J 33A(6, 7)A(6, 7)W 302R 31R 32 24K220pC 31-INPUT CH 1+INPUT CH 1-INPUT CH 2+INPUT CH 24. NO CHANGE IN PINOUT OF J32, PINS 1-2620.0 KCENTERSTEREONOTES, ALL REV LEVELSNOTES, REV LEVELS A-B1. THE FIRST YEAR OF PRODUCTION EX AM

45、PLIFIERS SHIPPED WITH PC-004002-00 REV A OR BC 302C 3012. FOR PC-004005-00 REV A, ADDED PADS 1-20 FOR LEVEL 1-A, 2-A INPUT ACCESSORY PCB5. SW-31 WAS REVISED ON PC-004005-00 REV A, BUT WILL NOT AFFECT FUNCTION OF UPPER SLOT PCB.3. ADDED J33, 5-PIN INPUT EXTENDER HEADER AND W305,306,405 & 406.11164612

46、22121092135151817201924232625THIS DOCUMENT CONTAINS PROPRIETARYINFORMATION WHICH IS THE PROPERTYOF QSC AUDIO PRODUCTS, THAT MAY NOTBE DISCLOSED, REPRODUCED OR USEDWITHOUT EXPRESS WRITTEN CONSENT FROMQSC AUDIO PRODUCTS.REVISIONSZONEREVDESCRIPTIONDATEAPPROVEDSIZEFSCM NO.DWG NO.REVSHEETSCALECOSTA MESA,

47、 CALIFORNIAFINISHMATERIALCONTRACT NO.APPROVALSDRAWNCHECKEDISSUEDDO NOT SCALE DRAWINGPARTS LISTDATECAD FILE NO.APPLICATIONUSED ONNEXT ASSYNOTES: UNLESS OTHERWISE SPECIFIEDTOLERANCES ARE:DECIMALSANGLESDECIMALSDIMENSIONS PER ANSI Y14.5-1982UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN INCHES.-+O-+-+.XX.X

48、XXDEBURR EDGES .XXX R MAXCAUDIO PRODUCTS, INC.12341234DCABDCABCAD SEED FILE NO.ABPROD REL PER ECO 756CHANGE VALUE R31, WAS 21 KCREVISED FOR MIN-SLOT, BR-SWSEE ECO 1097DSEE ECO 1297 BY PHQREVISE PER ECO 19161-24-92SGMSGM6-10-91SCHEMATIC DIAGRAMEX SERIES STANDARD,INPUT BOARDSH-004002-00D1 OF 1SH4002D1.FCDNONE6-18-90SH40002C1.FCDPC-004005-00EX/MPA SERIES131478LG.FOR PC-004005-00 REV B 7-15-93PAT QUILTER