Pioneer-MLA21-pwr-sm维修电路原理图.pdf

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1、ORDER NO. PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-

2、01, Singapore 159936 PIONEER CORPORATION 2000c THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). M-LA21 RRV2393 T IZK OCT. 2000 Printed in Japan STEREO POWER AMPLIFIER 1. SAFETY INFORMATION.2 2. EXPLODED VIEWS AND PARTS LIST . 3 3. SCHEMATIC DIAGRAM.6 4. PCB CONNECTION DIAGRAM.12 5. P

3、CB PARTS LIST.18 6. ADJUSTMENT.19 CONTENTS 7. GENERAL INFORMATION . 20 7.1 DIAGNOSIS.20 7.1.1 SINGLE OPERATION METHOD . 20 7.1.2 DISASSEMBLY . 21 8. PANEL FACILITIES AND SPECIFICATIONS.23 LA21 STEREO POWER AMPLIFIER DINAMIC OFF _ ON DYNAMIC MODE HIGH EFFICIENT AMPLIFIER POWER OUTPUT ComponentModelSe

4、rvice manualRemarks COMPACT MINI COMPONENTX-LA21RRV2370 STEREO CD TUNERXC-LA21RRV2392 STEREO POWER AMPLIFIERM-LA21RRV2393This manual. SPEAKER SYSTEMS-LA21RRV2394 System component Table This product is a system(s) component. This product does not function properly independently ; to avoid malfunction

5、s, be sure to connect it to the prescribed system component(s), otherwise damage may result. Please connect it to the STEREO CD TUNER XC-LA21, for operation inspection. Type Model Power Requirement The voltage can be converted by M-LA21the following method. DBDXCNAC110-127V / 220-230V / 240VWith the

6、 Voltage Selector DDXCN/ARAC110-127V / 220-230V / 240VWith the Voltage Selector RadioFans.CN 收音机爱 好者资料库 2 M-LA21 1. SAFETY INFORMATION This service manual is intended for qualified service technicians ; it is not meant for the casual do-it- yourselfer. Qualified technicians have the necessary test e

7、quipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this

8、 product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other rep

9、roductive harm. Health & Safety Code Section 25249.6 Proposition 65 NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation. REMARQUE (POUR MODLE CANADIEN SEULEMENT) Les symboles de fusib

10、le (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pices de remplacement doivent avoir la mme dsignation. ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTO

11、MER. 2. PRODUCT SAFETY NOTICE Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, watta

12、ge, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual. Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual. The use of a substitute replacement component

13、which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest info

14、rmation, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER. 1. SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service tech

15、nician. LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal

16、overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5mA. (FOR USA MODEL ONLY) Leakage current tester Reading should not be above 0.5mA Device under test Test all exposed met

17、al surfaces Also test with plug reversed (Using AC adapter plug as required) Earth ground AC Leakage Test RadioFans.CN 收音机爱 好者资料库 3 M-LA21 2. EXPLODED VIEWS AND PARTS LIST NOTES: Parts marked by NSP are generally unavailable because they are not in our Master Spare Parts List. The mark found on some

18、 component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Screws adjacent to mark on the product are used for disassembly. 2.1 PACKING (X-LA21) SYSTEM SPEAKER REAR XC-LA21 REAR M-LA21 FRONTFRONT FRONTFRONT TO

19、P SIDETOP SIDE 13 3 1 5 14 7 4 11 17 15 16 19 20DDXCN/AR Only 9(2/2) 10 10 9(1/2) 8(2/2) 12 8(1/2) 18 18 11 8(2/2) 12 12 8(1/2) 6 2 (1) PACKING PARTS LIST Mark No. Description Part No. 1AM Loop AntennaANT-PMT1E-AL 2Remote Control UnitAXD7289 3RCA Audio Cable122003220100 NSP4AAA Size R03 Batteries130

20、115004000 5FM Wire Antenna132030001001 6Power-cord Plug Conversion Adaptor 138011722000 7Battery Door500RC4603070 8Polyform Unit800PMT190001 9Polyfoam (Speaker)800PMT390000 10Poly Foam Sheet (C) SP801999000002 11Polythenefoam Sheet801999000005 NSP12PE Polybag (AC Cord)805032115000 NSP13PE Polybag (R

21、emocon)805035105000 NSP14PE Polybag (Antenna)805070100000 NSP15PE Polybag (I Book)805085140000 16Operating Instructions811PMT391011 (English/Spanish/Chinese) 17CartonSee Contrast table (2) 18Corrugate Card815001405213 19Additional Sheet810PMT395010 20Correction SheetSee Contrast table (2) (2) CONTRA

22、ST TABLE X-LA21/DBDXCN and DDXCN/AR are constructed the same except for the following : Part No. MarkNo.Symbol and DescriptionX-LA21X-LA21Remarks /DBDXCN/DDXCN/AR 17Carton813PMT393020813PMT393010 20Correction SheetNot used810PMT395020 RadioFans.CN 收音机爱 好者资料库 4 M-LA21 2215 18 2 51 16 329 49 42 49 53

23、52 52 47 48 52 52 53 20 53 50 53 53 53 52 53 31 53 53 53 34 28 7 5 6 52 53 10 54 54 53 53 50 12 19 45 13 43 1 32 33(3) 49 40 9 4 53 53 53 53 53 53 53 53 52 52 30 53 35 17 14 25 36 26 38 37 36 39 55 56 DDXCN/AR Only DDXCN/AR Only 57 44 46 44 52 27 B C C E G B D D A F F H G A E H 11 23 24 21 D B C A F

24、 E G DBDXCN Only 2.2 EXTERIOR SECTION RadioFans.CN 收音机爱 好者资料库 5 M-LA21 1AMP AssyPMT1LA100011 2TRANSFORMER AssyPMT1LA100031 3PRIMARY AssyPMT1LA100041 4JACK AssyPMT1LA100021 5POWER METER AssyPMT1LA100081 6LED AssyPMT1LA100051 7HP JACK AssyPMT1LA100111 8 NSP9PROTECTION PCBPMT1LA100141 10S-Assy PMT3 FP0

25、1SUBPMT3AMFP 11Meter AssySUBPMT3MTR NSP12Heat Sink Board033PMT1LS100 13DC Cord122006020060 14Transformer (TR701)1236C0250140 15Fuse124010020001 (F322, F323 : T1AL/250V) 16Fuse124025020001 (F328, F329 : T2.5A/250V) 17Fuse (F321 : T3.15A/250V)124031520003 18Fuse124063020001 (F324-F327 : T6.3AL/250V) 1

26、9AC CordSee Contrast table (2) 20Back CoverSee Contrast table (2) 21Diffuser Lens500PMT309000 22Top Panel500PMT311001 23Meter Holder505PMT307000 24Lens Holder505PMT308000 25Rectifier PCB Bracket505PMT370000 26PCB Bracket-R505PMT372000 27Mounting Bracket505266422000 28Power Knob510PMT312001 (1) EXTER

27、IOR SECTION PARTS LIST Mark No. Description Part No.Mark No. Description Part No. 29Voltage Selector Knob510PMT319000 30Side Panel-L600PMT117002 31Side Panel-R600PMT118002 NSP32Bottom Tray600PMT302000 33Copper Post603PMT381000 34Power Switch Bracket605PMT313000 35Transformer Bracket605PMT317000 36Mo

28、unting Bracket-1605PMT373000 37Mounting Bracket-2605PMT374000 38Mounting Bracket-3605PMT375000 39Mounting Bracket-4605PMT376000 40 41Heat Sink CDG-746130CDG74000 42PCB Sheet650PMT377000 43Bushing700PMT156000 44Rubber Foot700PMT384000 45Strain Relief Bushing700036022000 46EMC LabelSee Contrast table

29、(2) 47Back LabelSee Contrast table (2) NSP48Serial Label809000009000 49ScrewBBZ30P100FNI 50ScrewBBZ30P180FMC 51ScrewBBZ40P060FMC 52ScrewBPZ30P100FNI 53ScrewKBZ30P060FNI 54Foot Stand509PMT329000 55Holding PCBPMT1LA-100-121 56Caution LabelSee Contrast table (2) 57AC Cord LabelSee Contrast table (2) (2

30、) CONTRAST TABLE M-LA21/DBDXCN and DDXCN/AR are constructed the same except for the following : Part No. MarkNo.Symbol and DescriptionM-LA21M-LA21Remarks /DBDXCN/DDXCN/AR 19AC Cord134250220000134220120016 20Back Cover500PMT303000500PMT388000 46EMC Label809PMT394030Not used 47Back Label809PMT39604080

31、9PMT396060 56Caution LabelNot used809PMT394070 57AC Cord LabelNot used809PMT394100 RadioFans.CN 收音机爱 好者资料库 M-LA21 6 A B C D 1234 1234 POWER METER ASSY (PMT1LA100081) E JACK ASSY (PMT1LA100021) D AMP ASSY (PMT1LA100011) A IC601 STK411-230 POWER AMPLIFIER RL601 PLY-DPDTL R SPEAKER OUT 1814 IC504 BA455

32、8N From XC-LA21 3 (PH) (PH) (PH) 4 4 44 44 7 7 57 3. SCHEMATIC DIAGRAM 3.1 OVERALL WIRING DIAGRAM RadioFans.CN 收音机爱 好者资料库 M-LA21 7 A B C D 5678 5678 TRANSFORMER ASSY (PMT1LA100031) B PRIMAY ASSY (PMT1LA100041) C AC IN PHONES HP JACK ASSY (PMT1LA100111) G LED ASSY (PMT1LA100051) F : AUDIO SIGNAL ROUT

33、E (PH) (PH) From XC-LA21 3 : AUDIO SIGNAL ROUTE (PHONES) (PH) D311 Note : When ordering service parts, be sure to refer to EXPLODED VIEWS and PARTS LIST or PCB PARTS LIST. RadioFans.CN 收音机爱 好者资料库 M-LA21 8 A B C D 1234 1234 AMP ASSY (PMT1LA100011) 010-550411-000A A CN602 136-08PMT3-200J CN22D MTZJ6.2

34、A MTZJ6.2A 018-030036-300A 018-030036-300A 2/2 1/2 BA4558DX BA4558DX 011-020602-001A 011-025401-000A NJM78M12FA NJM79M12FA 006-033200-80D 006-033200-63D 004-022410-100 004-022410-100 003-030840-050 003-030840-050 3.2 AMP, TRANSFORMER and PRIMARY ASSYS A RadioFans.CN 收音机爱 好者资料库 M-LA21 9 A B C D 5678

35、5678 PRIMARY ASSY (PMT1LA100041) C TRANSFORMER ASSY (PMT1LA100031)B WH601 136-05PMT3-350J WH1 025-230041-000A CN604 136-07PMT3-202J WH602 136-04PMT3-350J CN1 135-PHS060-060J CN8 CN603 136-06PMT3-200J CN4D CN23D AC IN 2/2 1/2 BA4558DX BA4558DX 011-025401-000A 011-020005-000A 011-020005-000A 011-02000

36、5-000A 011-020005-000A 011-020602-001A 011-024001-000A BZ605 MTZJ3.0A BZ604 MTZJ3.0A 010-024001-000A 128-1221125-000 Q617 DTA114YS 008-801144-000A Q610 DTA114YS 008-801144-000A D311 011-024001-000A 006-033200-63D 006-033200-80D : AUDIO SIGNAL ROUTE (L ch) : AUDIO SIGNAL ROUTE (PHONES) HP HP HP HP NO

37、TE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY. CAUTION - 124063020001 124010020001 124031520003 124025020001 124025020001 1236C0250140 025-230041-000A 122006020060 AC CORD 124250220000 137-400001-000J NEUTRAL LIVE 135-PHS020-020J 128-0

38、90109-000A CBA RadioFans.CN 收音机爱 好者资料库 M-LA21 10 A B C D 1234 1234 CN23 JK501 118-000134-003J JK502 118-020202-0001J JACK ASSY (PMT1LA100021)D WH602A AUDIO IN L R IC504 BA4558DX IC502 BA4558DX 1/2 MTZJ9.1C MTZJ12B 135-053259-040J 004-033210-100 004-056210-100 004-056210-100 3.3 JACK, POWER METER, LE

39、D and HP JACK ASSYS D RadioFans.CN 收音机爱 好者资料库 M-LA21 11 A B C D 5678 5678 CN11 136-11PMT3-200J CN2 135-PHS110-110J CN22 135-PHS080-080J CN3 135-PHS070-070JCN4 135-PHS070-070J CN13 050-060060-200J CN16 135-030060-200J CN17 CN12 136-17PMT3-200J CN20 135-053259-040J JK503 116-008020-000 110-033162-003A

40、 110-033040-013A PHONES POWER METER ASSY (PMT1LA100081) E HP JACK ASSY (PMT1LA100111) G LED ASSY (PMT1LA100051) F CN602 A CN604A IC502 BA4558DX 2/2 : AUDIO SIGNAL ROUTE (L ch) : AUDIO SIGNAL ROUTE (PHONES) HP HPHPHPHP HP HP HP HP JACK ASSY SW501 : DYNAMIC 021-022322-000A GFED RadioFans.CN 收音机爱 好者资料库

41、 M-LA21 12 A B C D 1234 1234 E E E Z2 Z1 WH601 Q617 P3 R670 D607 D609 D608 D610 CN603 EC633 IC605 W603 W607 W606 P2 W601 W602 W605 W604 EC622 EC623 R305 EC621 IC604 EC625 EC626 EC620 EC624 D612D611 C618 C619 ORN BLU BLK WHT RED WHT YEL ORN RED BRN BLK PWRCTL CTLGND MUTE 16VAC2 GND 16VAC1 ACVH2 ACVL2

42、 ACGND ACVL1 ACVH1 NOTE FOR PCB DIAGRAMS : Part numbers in PCB diagrams match those in the schematic diagrams. The parts mounted on this PCB include all necessary parts for several destinations. For further information for respective destinations, be sure to check with the schematic diagram. View po

43、int of PCB diagrams. Capacitor Connector P.C.BoardChip Part SIDE A SIDE B Q617 AMP ASSYA WH1 B CN1 B SIDE A A 4. PCB CONNECTION DIAGRAM 4.1 AMP ASSY RadioFans.CN 收音机爱 好者资料库 M-LA21 13 A B C D 5678 5678 E E E E E E E E E E E E E E E E CN604 EC608 C637 C636 DZ605 DZ604 Z1 BLK BLK. R681 D616 WH602 P3 W6

44、12 W640 D615 D614 Q616 R672 R671 R669 W639 W638 W637 Q615 W630 C602 C630 C631 C601 C606 CN602 D613 R622 W613 EC630 EC631 W633 W628 R659 W614 W625 EC617 R667 D606 R646 R649 R647 R648 W618 W616 W611 W626 Q606 EC616 EC619 Q604 R654 R652 EC615 Q605 R639 W602 W619 W617 P1 W610 W627 W634 W629 W635 R661 R6

45、25 EC622 W624 R618 R620 EC614 D601 DZ603 Q603 Q602 Q601 R623 R626 R644 R635 R663 R628 R624 R627 R631 R630 R633 R637 R645 R632 R634 R636 R638 R642 R643 R640 R641 EC610 EC611 EC607 EC609 C607 C610 C609 C608 EC612 EC613 C611 C612 IC603 IC602 W609 L601 L602 W620 W621 W622 W623 R602 R601 DZ602 DZ601 R609

46、 R608 EC626 EC620 EC624 IC601 R657 C634 C633 R653 R651 R662 R656 Q613 Q611 Q614 Q612 Q610 R629 R604 R664 R650 EC601 R603 EC602 R605 C603 C604 R615 D602 R610 R607 R612 R617 R606 EC606 R611 EC605 R613 C635 R658 R668 R621 EC618 R665 Q607 RL601 R616 Q608 EC603 R619 EC604 R614 Q609 D604 PMT1LA-01-01 AMP

47、BOARD BOND WHT WHT RED BLK BLK ORN WHT WHT WHT WHT RED PWRCTL AGND L+R SIG SPKR GND GND SPKL -12V +12V GND HPRCH HPGND HPLCH SPKCTL AGND RIN AGND LIN CTL GND Q617 IC603 IC602Q603 Q602Q601IC601Q609Q616 Q610 Q607Q615 Q604 Q606 Q605 Q611 Q613Q614 Q612 Q608 CN23DCN4D CN22D A RadioFans.CN 收音机爱 好者资料库 M-LA

48、21 14 A B C D 1234 1234 CN9 CN8 PWRCTL GND. PWR J2 F329 J1 F328 NL SW301 C321 RL301 R308 C316 C315 L301 F321 D311 BOND BRN BLU YEL ORN RED BLK F321 F328F329 LN PRIMARY BOARD PMT1LA-01-04 PRIMARY DANGER MUTE CTLGND PRIMARY ASSYC AC IN NEUTRAL LIVE SIDE A C 4.2 TRANSFORMER and PRIMARY ASSYS RadioFans.CN 收音机爱 好者资料库 M-LA21 15 A B C D 5678 5678 CN10 WH1 CN1 PT1 BRN BLU YEL ORN RED BLK F326 F327 F325 F324