QSC-EX1250-pwr-sch 维修电路原理图.pdf

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1、AUDIO PRODUCTSPHQ 5-15-91SCHEMATIC EX-1250DRAWING1 3NOTES.1. ALL RESISTORS 1/4-WATT, 5% UNLESS NOTED.2. ALL CAPACITORS 100V UNLESS NOTED.TOLERANCE 20% FOR ELECTROLYTIC TYPES, 10% ON OTHER TYPES.PC-004001-00PC-004002-00DISPLAY PCBINPUT PCBSPKR PCB101-199201-2991-29301-399401-49931-49501-599601-69951-

2、69701-799801-89971-99901-UP (SAME BOARD FOR CH 1, CH2)PCB NUMBER DESCRIPTION CH 1 PARTS CH 2 PARTS PARTS IN COMMON8. PARTS MARKED WITH TRIANGLE MUST BE REPLACED WITH EXACT TYPE ONLY.9. PARTS ENCLOSED WITHIN DOTTED OUTLINE HAVE VOLTAGES GREATER THAN 42V.SCHEDULE OF TEST POINTSETCJ 502-1CH-1CH 2J 502-

3、6 J 602-6 SWITCHED POS AMPLIFIER RAIL-HIGH VOLTAGEJ 502-1 J 602-1 NEGATIVE LIMITING VOLTAGEJ 502-2 J 602-2 POSITIVE LIMITING VOLTAGEJ 502-4 J 602-4 AMPLIFIER LOOP OPAMP OUTPUTJ 502-8 J 602-8 SWITCHED NEG AMPLIFIER RAIL-HIGH VOLTAGEJ 502-3 J 602-3 SWITCHING THRESHOLD REFERENCE VOLTAGEPC-004104-00PC-0

4、04101-00AMP PCBPC-004103-00AC PCB3. BRIDGE RECTIFIER BR 51, 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 L

5、EAKAGE, QSC P/N QD-000024-QD.+23V 0N/OFF ENABLETRANSFORMER THERMAL SENSORTHERMAL BUS TO FAN SPEED CONTROL1N4004220035V-15 V REG-24 V UNREG100+24 V UNREG+15 V REG78153211N4746, 18V1N4746, 18V100220035V791532118 Vac118 Vac2CT3+24 V+15 V-15 V-24 VXF PTCXF PTCJ 51U 52D 53D 52U 51C 54C 53C 56C 55D 51BR 5

6、135 V35 VSHEET 1, HOUSEKEEPING SUPPLY AND FAN SPEED CONTROLSHEET 1, HOUSEKEEPING SUPPLY AND FAN SPEED CONTROL-24 V24 V BRUSHLESS FAN2.7K2.7K2.7K2.7K47K.01RN 51C 52Q 522N2907Q 532N4410R 52R 51C 57C 51Q 512SC3298B100-35V47-10NP+23V 0N/OFF ENABLETRANSFORMER THERMAL SENSORTHERMAL BUS TO FAN SPEED CONTRO

7、LJ 52-1J 52-4TO SHEET 2TO SHEET 3SCHEMATIC, 2-CH POWER AMPLIFIER EX 1250SCHEMATIC, 2-CH POWER AMPLIFIER EX 1250PART NUMBERING SCHEDULE FOR PCBS USED IN EX-1250:5. Q 503, 504, 603, 604 ARE SWITCHING FETS. QSC P/N QD-000013-00 OR QD-000031-QD.125 W, 50 V MINIMUM, ON-RESISTANCE 0.030 OHMS MAX.54ABCDB P

8、ROD RELEASE PER ECO 1107 GLFA3.3-1WR 53HEAT SINK GROUNDAUDIO AND POWER GROUNDSC REVISED PER ECO 1127 RDS7-12-915-29-91SGMDREVISED PER ECO 1262LGRESISTANCE 100 OHM COLD, RISING AT 55 C. QSC P/N RE-000006-PTE REVISED PER ECO 1289 PHQ11-6-91DOC NO. SH-004101-01SGMSGM10-9-91SGMF REVISED PER ECO 1508 SGM

9、6-10-92APPLICATIONUSED ONNEXT ASSYWP-004101-10EX1250REV E, 11-6-91, FOR PC-004101-00 REV DSGMG REVISED PER ECO 1602 WR10-21-921342LAST USED REF. DESIGN.C51 - 57, C526, 626D51 - 53, D513, 613F504, 604J51, 52, J503, 603K501, 601L501, 601Q51 - 53, Q510, 610R51 - 53, R544, 644, R598, 698, R599, 699RN51,

10、 RN502, 602U51, 52, U506, 606VR503, 603BR 51, BR 502, 602SGMH REVISED PER ECO 2009LG/RAB180KSGMJ REVISED PER ECO 2371 MP (EFF. 7-28-94)5-11-94FAN BLKFAN REDSGMK REVISED PER ECO 2506 MP (EFF. 12-09-94)7-20-94SH-004101-01 1 KSH1250J1.FCDSH1250K1.FCDSH-004101-01 KRadioFans.CN 收音机爱 好者资料库2 OF 3ASPKR SIGG

11、NDGNDGNDACLIP10K-2W470-10V470-10V10K-2WTO +15VTO +15 VTO -15 V5K5K7.5K-2W22-1W2SA1302.22-3W2SC3281IN540222-1W4.7-1W4.7-1W2SA1306B2SC3298B.102.7-2WDGS.1015K750K750K332332A1K-42.7K55321N54022uH.1012345678+15 V-15 VACDBHEATSINKGROUNDSPEAKER BUSAUDIO OUTPUT STAGESWITCHING THRESHOLDREFERENCE.0022470-10V2

12、2 FP3K-2W7.5V7.5V.0033100BIASSOURCE REFDGS 22 FP2.7-2W.10.22-3W3 PL3 PL3 PL3 PL10A-250V10A-250VSPEAKERCOMMON10A-250V10A-250VTRANSFORMERCENTER TAPSPEAKEROUTPUTNCNOTO -24 V1N40041N400425 C.0150 OHMBIASNETWORK1N400410-25VTO -24 V470-1WPTC-60CTHERMALLYCONNECTEDMUR 810MUR 8105.6-2WT7T8GATESOURCE REFGATE

13、DRIVERSCHMIDTT COMPARATORLOSS-OF-SATSHUTDOWNT9HIGH RAILIC-000008-00T4SLEWNEG SUPPT6BOOTSTRAP CAPT1REF VOLTT2LOW RAILT3SHUTDOWNT5T6T7GATEGATE DRIVERLOSS-OF-SATSHUTDOWNIC-000009-00T5GATE PWRT4SLEWT3SHUTDOWNT2LOW RAILT1REF VOLTSOURCE REFSCHMIDTTCOMPARATORT 6+15 VT15-15 VT16PROCESSING BUFFER50C +O.5V90C

14、 +8VTHERM ADJUST, 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 P

15、ROTECT SENSET10THERMAL 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,

16、+7.5V NORMAL, +2.5V SHORTPOSITIVE BIASCONTROLLERT22POSITIVE CURRENT FEEDBACK +3V PEAKT21POS CURRENT TRIMMERT20OUTPUT VOLTAGE FEEDBACKLOAD IMPEDANCESENSINGT19NEGATIVE TRIMMERBIAS ENABLENEGATIVE BIASCONTROLLERT18NEGATIVE CURRENT FEEDBACK, -3V PEAKT17NEGATIVE BYPASS, -7.5V NORMAL, -2.5V SHORTBIAS680pJ

17、502-1J 502-3J 502-6J 502-8J 502-2+ CURR LIM+ CURR LIM- CURR LIM- CURR LIM- CURR LIMR 598U 501D 504R 511Q 504R 512C 503C 509J 5016-PIN MATE-LOK346125D 502C 511BR 502BR 501F 502F 504F 501F 503K 501VR 501R 599C 504D 505D 506R 508R 503R 506R 501R 505R 507Q 502R 504R 502Q 501R 519R 518R 520R 521R 522Q 50

18、8Q 509Q 510D 508Q 505Q 506Q 507R 516R 515R 517D 507L 501R 525C 506C 510C 5075.6-2WR 523D 503U 502R 514R 510C 505Q 503D 501R 509C 501C 508TO RECT BR 501TO RECT BR 502TO Q 5083K-2WR 526U 505-BR 534C 523RN 502R 535U 505-AC 519C 512R 530R 528C 513VR 503VR 502R 529C 518U 503R 527C 515C 514C 516R 53147-50

19、V47-50VD 51247K-1WR 542TO -15V+23V 0N/OFF ENABLETRANSFORMER THERMAL SENSORTHERMAL BUS TO FAN SPEED CONTROLTO SHEET 1SCHEMATIC, EX-1250, SHEET 2, AMPLIFIER CHANNEL ASCHEMATIC, EX-1250, SHEET 2, AMPLIFIER CHANNEL A590J 52-5J 52-6+92 V RAIL+46 V RAIL+46 +92 V SWITCHED BUS-46 V RAIL-92 V RAIL-46 -92 V S

20、WITCHED BUSTO -92 V RAILTO -46 V RAIL15000-50V15000-50V15000-50V15000-50V1.5K1.5KC 502 47-50VR 513 22K-1W3.9-2WR 524R 532, 47K65121311J 502-4+INPUTGND REFPWR-ONAUDIO INPUT STAGEHEAVY LINE SHOWSMAIN SIGNAL PATHSPEAKER BUS47K-1WR 533VTL 5C4U 50468 p1N4735A553210K-421.5K-.5W75K47BA356847+15 V-15 VDC216

21、.2 VA.0022.1247-10NPC 525U 506-BR 541RN 501U 506-AD 511C 520C 521R 538R 536R 537C 524R 540C 522R 539D 5091N 4148D 5101N 41481N47356.2 VD 513C 5261.5 KA7914590TO +46 V RAIL590R 54427K220-10NPC 517THERMALMUTE14-PIN RIBBONJ 503108R 543330K27 pSH-004101-01 2 KSH-004101-01 KSH1250K2.FCD18pF-5%RadioFans.C

22、N 收音机爱 好者资料库ASPKR SIGGNDGNDGNDA10K-2W470-10V470-10VTO +15V+24 V+15 V-15 V-24 V10-25VTO +15 VTO -15 V5K5K7.5K-2WN.C.N.C.N.C.N.C.PTC-60CTHERMALLYCONNECTED22-1W2SA1302.22-3W2SC3281IN540222-1W4.7-1W4.7-1W2SA1306B2SC3298B.103.9-2WDGS.1015K750K750K332332A1K-42.7K55321N54022uH.1012345678+15 V-15 VACDBHEATS

23、INKGROUNDSPEAKER BUSAUDIO OUTPUT STAGESWITCHING THRESHOLDREFERENCE.0022470-10V22 FP3K-2W7.5V7.5V1N4004.00331N4004100BIAS25 C.0150 OHMBIAS NETWORKSOURCE REFDGS 22 FP2.7-2W.10.22-3W3 PL3 PL3 PL3 PL10A-250V10A-250VSPEAKERCOMMON10A-250V10A-250VTRANSFORMERCENTER TAPSPEAKEROUTPUTNCNOTO -24 VMUR 810MUR 810

24、14-PIN RIBBON5.6-2WT7T8GATESOURCE REFGATE DRIVERSCHMIDTT COMPARATORLOSS-OF-SATSHUTDOWNT9HIGH RAILIC-000008-00T4SLEWNEG SUPPT6BOOTSTRAP CAPT1REF VOLTT2LOW RAILT3SHUTDOWNT5T6T7GATEGATE DRIVERLOSS-OF-SATSHUTDOWNIC-000009-00T5GATE PWRT4SLEWT3SHUTDOWNT2LOW RAILT1REF VOLTSOURCE REFSCHMIDTTCOMPARATORT 6+15

25、 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 0VMUTE +8VSHUTDOWN MUTINGIC-000010-00MUTE BUST 5T 7THERMAL SENSE, 0-8VT 8THERMAL BUS, 0-8VT 9OP-AMP OUT -

26、 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-BUFFERHIGH FREQDC RECTIFIERTHERMALT12T13T14CLIP BUSOP-AMP OUTOPTOCELLT25POSITIVE DRIVER, +0.6V IDLET24NEGAT

27、IVE DRIVER, -0.6V IDLET23POSITIVE BYPASS, +7.5V NORMAL, +2.5V SHORTPOSITIVE BIASCONTROLLERT22POSITIVE CURRENT FEEDBACK +3V PEAKT21POS CURRENT TRIMMERT20OUTPUT VOLTAGE FEEDBACKLOAD IMPEDANCESENSINGT19NEGATIVE TRIMMERBIAS ENABLENEGATIVE BIASCONTROLLERT18NEGATIVE CURRENT FEEDBACK, -3V PEAKT17NEGATIVE B

28、YPASS, -7.5V NORMAL, -2.5V SHORTBIAS680pJ 602-1J 602-2+ CURR LIM+ CURR LIM- CURR LIM- CURR LIMJ 602-8J 602-6J 602-3J 602-4TO Q 607U 601D 604R 611Q 604R 612C 603D 602J 6016-PIN MATE-LOK346125BR 602BR 601F 602F 604F 601F 603K 601C 609C 611VR 601R 699C 604D 605D 606R 608R 603R 601R 607R 606R 605Q 602R

29、604R 602Q 601R 619R 620R 621R 622Q 608Q 609Q 610D 608Q 605Q 606Q 607R 616R 615R 617D 607R 618L 601R 6255.6-2WR 623C 606C 610R 624C 607D 603U 602R 614D 601C 601Q 603C 608R 610C 605TO RECT BR 601TO RECT BR 602470-1W1N40043K-2WR 626U 605-AU 605-BC 619R 634C 623C 612RN 602R 635R 628R 630CLIPC 618R 629VR

30、 602VR 603C 61347-50V47-50VC 615C 614U 603C 616R 631J 603R 698D 61247K-1WTO -15VR 642TO -24 VSCHEMATIC, EX 1250, SHEET 3, AMPLIFIER CHANNEL BSCHEMATIC, EX 1250, SHEET 3, AMPLIFIER CHANNEL B590J 52-2J 52-32.7-2WR 609+92 V RAIL+46 V RAIL+46 +92 V SWITCHED BUS-46 V RAIL-92 V RAIL-46 -92 V SWITCHED BUST

31、O -92 V RAILTO -46 V RAIL15000-50V15000-50V15000-50V15000-50V+23V 0N/OFF ENABLETRANSFORMER THERMAL SENSORTHERMAL BUS TO FAN SPEED CONTROLTO SHEET 11.5K1.5K3 OF 3C 602 47-50VR 613 22K-1WR 632, 47K+INPUTGND REFPWR-ONAUDIO INPUT STAGEHEAVY LINE SHOWSMAIN SIGNAL PATHSPEAKER BUS47K-1WJ 602-4R 6331N47356.

32、2 V1N 4148D 611D 6101497A21.5K-.5W75K47321.0022.12C 622R 640R 638C 621C 620R 639R 637U 606-AR 6411N 41481N47356.2 VC 626D 613D 609590A847+15 V-15 VC68 pA47-10NPC 624R 6361.5 KC 625553210K-4B56DRN 601U 606-BVTL 5C4AU 60427KR 643R 644TO +46 V RAIL59010K-2W220-10NPR 627C 617THERMALMUTE65121313421081133

33、0K27 pSH-004101-01 3 KSH-004101-01 KSH1250K3.FCD18pF-5%SIG. 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- INPUTTHERM BUS, 0-8VPWR-ON, 0-15VSPKR SIGNAL, 5V PKCLIP-LIM BUS, 0-4VMUT

34、E 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. CH 2 RESISTOR NETWORK SECTIONS ( ) WHEN DIFFERENT.4. CH 1 COMPONENTS N

35、UMBERED 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-30-10LD10410KR10610uFC1063.9KR109RN 1041K-C-24V+24VAC RELAY 2AC RELAY 1R

36、EG. +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 BOARDSCHEMATIC DIAGRAM1 OF 1PAT QUILTER 6-19-90A PROD REL PER ECO 7561K-DR11

37、3634B 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, 0-4VRED100MPS2907.00331N40042N441014129RN10210K-D(A)10K-C(B)10K-B(C)10K-A(D)Q102Q101D101R101LD101RN

38、1031K-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 REGTEMP-PROTCH 1 +INJ 31CH 1 -INGNDCH 2 -INCH 2 +INJ 32GNDGNDCH 1 SPKR SIGG

39、NDGND-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. PARTS FOR CH 1 NUMBERED 301-399.5. PARTS FOR CH 2 NUMBERED 401-499.6. PART

40、S 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 304SHIPPED XLR PIN 2 HIMOVE W 303, 304 TO ALTPOSITION FOR PIN 3 HI470 p4

41、70 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-APIN 11 V- BPIN 12 CLIP BPIN 13 GNDPIN 14 -0UT BPIN 15 -IN BPIN 16 +OUT B

42、PIN 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 LEVEL 1-AOR 2-A ACCESSORY PCBW 305W 306W 406W 405A3-POSXLR231AJ 301AXLR231A

43、J 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 AMPLIFIERS SHIPPED WITH PC-004002-00 REV A OR BC 302C 3012. FOR PC-004005

44、-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 & 406.1116461222121092135151817201924232625THIS DOCUMENT CONTAINS PROPRIETARYINFORMAT

45、ION 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, CALIFORNIAFINISHMATERIALCONTRACT NO.APPROVALSDRAWNCHECKEDISSUEDDO NOT

46、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.XXXDEBURR EDGES .XXX R MAXCAUDIO PRODUCTS, INC.12341234DCABDCABCAD SEED

47、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