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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
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