Pioneer M-LA21 Service Manual Download

Page: 17 / 24

M-LA21

METER

CN12

CN13

CN11

CN15

CN14

CN16

R574

R573

CN17

LED501

LED503

LED502

EC556

EC557

C551

R565

EC555

R564

R568

EC558

W554

W552

CN20

JK504

CN19

IC506

JK503

SW501

PMT1LA-01-11

PMT1LA-01-05

PMT1LA-01-08

ECHOS1

+12V

ECHOS2

VOLGND

MICS2

-12V

MICS1

MIC SW

-12V

MIC

+12V

MIC GND

+12V

DYNAMIC

HP Lch

HP GND

HP Rch

HP SW

HPSW

DYNAMIC

+12V

HP SW

+12V

DYNAMIC

MICS1

-12V

ECHOS2

+12V

DYNAMIC

+12v

GND

MIC

ECHOS1

MICS2

MIC SW

MIC GND
MIC

LED GND

METER

VOLGND

HP Rch

HP GND

HP Lch

PMT1LA-01-11

PMT1LA-01-05

PMT1LA-01-08

MIC SW

MIC GND

MIC

HPRCH

HPLCH

HPGND

DYNA

+12v

GND

-12V

HP JACK ASSY

LED ASSY

POWER
METER
ASSY

CN3

CN2

SIDE A

4.4 POWER METER, LED and HP JACK ASSYS

www. xiaoyu163. com

QQ 376315150

TEL 13942296513

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

Summary of Contents for M-LA21

Page 1: ...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 Component Model Service manual Remarks COMPACT MINI COMPONENT X LA21 RRV2370 STEREO CD TUNER XC LA21 RRV2392 STEREO POWER AMPLIFIER M LA21 RRV2393 This manual...

Page 2: ...t components rated for voltage wattage 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 which does not have the same safety characteristics as the PIONEER r...

Page 3: ...000 7 Battery Door 500RC4603070 8 Polyform Unit 800PMT190001 9 Polyfoam Speaker 800PMT390000 10 Poly Foam Sheet C SP 801999000002 11 Polythenefoam Sheet 801999000005 NSP 12 PE Polybag AC Cord 805032115000 NSP 13 PE Polybag Remocon 805035105000 NSP 14 PE Polybag Antenna 805070100000 NSP 15 PE Polybag I Book 805085140000 16 Operating Instructions 811PMT391011 English Spanish Chinese 17 Carton 813PMT...

Page 4: ...53 53 53 53 53 52 52 30 53 35 17 14 25 36 26 38 37 36 39 55 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 E G 2 2 EXTERIOR SECTION www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 5: ...RTS LIST Mark No Description Part No Mark No Description Part No 29 Voltage Selector Knob 510PMT319000 30 Side Panel L 600PMT117002 31 Side Panel R 600PMT118002 NSP 32 Bottom Tray 600PMT302000 33 Copper Post 603PMT381000 34 Power Switch Bracket 605PMT313000 35 Transformer Bracket 605PMT317000 36 Mounting Bracket 1 605PMT373000 37 Mounting Bracket 2 605PMT374000 38 Mounting Bracket 3 605PMT375000 3...

Page 6: ...DPDT L R SPEAKER OUT 18 14 IC504 BA4558N From XC LA21 3 PH PH PH 4 4 4 4 4 4 7 7 5 7 3 SCHEMATIC DIAGRAM 3 1 OVERALL WIRING DIAGRAM www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 7: ...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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 8: ...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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 9: ...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 NOTE 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 000...

Page 10: ...8DX 1 2 MTZJ9 1C MTZJ12B 135 053259 040J 004 033210 100 004 056210 100 004 056210 100 3 3 JACK POWER METER LED and HP JACK ASSYS D www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 11: ... PHONES POWER METER ASSY PMT1LA100081 E HP JACK ASSY PMT1LA100111 G LED ASSY PMT1LA100051 F CN602 A CN604 A IC502 BA4558DX 2 2 AUDIO SIGNAL ROUTE L ch AUDIO SIGNAL ROUTE PHONES HP HP HP HP HP HP HP HP HP JACK ASSY SW501 DYNAMIC 021 022322 000A G F E D www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 1...

Page 12: ... 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 point of PCB diagrams Capacitor Connector P C Board Chip Part SIDE A SIDE B Q617 AMP ASSY A WH1 B CN1 B SIDE A A 4 PCB CONNECTION DIAGRAM 4 1 AMP ASSY www xiaoyu163 com QQ376315150 9 9 2 8 ...

Page 13: ...2 W609 L601 L602 W620 W621 W622 W623 R602 R601 DZ602 DZ601 R609 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 BOARD BOND WHT WHT RED BLK BLK ORN WH...

Page 14: ...329 L N PRIMARY BOARD PMT1LA 01 04 PRIMARY DANGER MUTE CTLGND PRIMARY ASSY C AC IN NEUTRAL LIVE SIDE A C 4 2 TRANSFORMER and PRIMARY ASSYS www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 15: ...ARD PRIMARY DANGER GND 16VAC1 16VAC2 MUTE ACVH2 ACVL2 ACGND ACVL1 ACVH1 PMT1LA 01 03 TRANSFORMER ASSY B CN603 A WH601 A SIDE A B www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 16: ...521 R523 R522 C525 R518 I C 5 1 2 Q501 Q511 Q503 Q502 Q504 D510 D506 DZ504 D509 DZ505 EC520 EC518 EC515 EC517 EC513 EC512 EC511 EC521 EC528 EC527 EC526 EC525 EC524 EC523 EC522 EC545 EC535 EC544 EC532 EC529 EC536 EC514 IC502 BOND BOND BOND BOND PWRCTL AGND JACK BOARD FOR NON KARAOKE TO EC522 TO EC523 RCHOUT AGND AGND 12V AGND 12V HPSW HPRCH HPGND HPLCH 12V 12V 12V ECHOSIG1 ECHOSIG2 LIN RIN GND MICI...

Page 17: ...NAMIC 12V HP SW 12V DYNAMIC MICS1 12V ECHOS2 12V 12V DYNAMIC 12v GND MIC ECHOS1 MICS2 MIC SW MIC GND MIC LED GND METER VOLGND HP Rch HP GND HP Lch PMT1LA 01 11 PMT1LA 01 05 PMT1LA 01 08 MIC SW MIC GND MIC HPRCH HPLCH HPGND DYNA 12v GND 12V HP JACK ASSY G LED ASSY F POWER METER ASSY E CN3 D CN2 D SIDE A G F E 4 4 POWER METER LED and HP JACK ASSYS www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL ...

Page 18: ...5 011 020005 000A D611 D612 BRIDGE RECTIFIER 011 020602 001A D614 D615 RECTIFIER IN 5401BL 011 025401 000A BZ604 BZ605 MTZJ3 0A DZ601 DZ602 MTZJ6 2A COILS L601 L602 3µH 018 030036 300A RELAY RL601 12V OSA SS 212DM5 128 122125 000A CAPACITORS C603 C604 C633 C634 004 022410 100 MYLAR CAP 0 22 uF 100V C606 C635 CKCYB471K50 C607 C610 CKCYB682K50 C608 C609 C611 C612 CCCCH100D50 C618 C619 CKCYB103K50 C6...

Page 19: ...48 CEJQ101M16 EC535 EC536 CEJQ220M16 EC561 EC562 CEJQ470M16 EC531 EC533 EC534 EC537 CEJQ100M16 EC546 EC559 EC560 CEJQ100M16 EC529 EC530 EC541 CEJQ1R0M50 RESISTORS All Resistors RD1 4PU J OTHERS CN3 CN4 HEADER CTL 7 PINS 135 PHS070 070J CN22 HEADER CTL 8 PINS 135 PHS080 080J CN2 HEADER CTL 11 PINS 135 PHS110 110J JK501 PUSH TERMINAL BOARD 118 000134 003J JK502 PIN JACK BOARD 118 020202 001J JP WIRE...

Page 20: ...1 F328 F329 L N PRIMARY BOARD PMT1LA 01 04 PRIMARY DANGER MUTE CTLGND PRIMARY ASSY C DC power supply DC 9V GND Please supply 9V from DC power supply to the following point www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 21: ...in the same way Disconnect a Connector CN8 Front Panel Unhook Unhook Top Panel 7 1 2 DISASSEMBLY 2 1 2 1 2 1 2 10 2 10 4 12 4 13 10 15 16 13 14 13 11 2 10 2 10 2 4 2 6 2 1 2 8 2 8 2 3 7 9 5 5 5 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com h...

Page 22: ...R Assy HP JACK Assy TRANSFORMER Assy PRIMARY Assy F E G B C A D www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 23: ...AMIC OFF _ ON DYNAMIC MODE HIGH EFFICIENT AMPLIFIER POWER OUTPUT 2 3 4 1 3 POWER OUTPUT meter Shows the output level of the currently selected source 4 DYNAMIC Switch on for extra power in the bass and a richer treble www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ...

Page 24: ...nsions Stereo power amplifier 160 W x 176 H x 315 D mm Weight Stereo power amplifier 5 1 kg NOTE Specifications and design subject to possible modification without notice due to improvements www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http...

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