STEREO AMPLIFIER A-407R Direct Energy MOS VOLUME TAPE 2 MONITOR STANDBY/ON STANDBY CD TUNER PHONO LINE TAPE 1 /MD POWER OFF ON A SPEAKERS B BASS TREBLE BALANCE INPUT SELECTOR REC SELECTOR CD TUNER OFF SOURCE PHONES LOUDNESS DIRECT MIN MAX L R ORDER NO. RRV1958 STEREO AMPLIFIER A-407R THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). Type MY/EW MY/GR MV Model A-407R AC220 ­ 230V AC220 ­ 230V AC220 ­ 230V Power Requirement Remarks CONTENTS 1. SAFETY INFORMATION ...................................... 2 2. EXPLODED VIEWS AND PARTS LIST ................ 3 3. SCHEMATIC DIAGRAM ....................................... 6 4. PCB CONNECTION DIAGRAM .......................... 14 5. PCB PARTS LIST ............................................... 19 6. ADJUSTMENT .................................................... 22 PIONEER ELECTRONIC CORPORATION 7. GENERAL INFORMATION ................................ 23 7.1 IC INFORMATION ....................................... 23 7.2 BLOCK DIAGRAM ....................................... 24 8. PANEL FACILITIES AND SPECIFICATIONS .... 25 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 ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Wheelock Place, Singapore 238880 c PIONEER ELECTRONIC CORPORATION 1998 T - IZK MAY 1998 Printed in Japan A-407R 1. SAFETY INFORMATION This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. Qualified technicians have the necessary test equipment 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 product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. WARNING Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5). When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with the solder. Also, when soldering do not inhale any smoke or fumes produced. NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or be of identical designation. (slow operating fuse) on PCB indicate that replacement parts must REMARQUE (POUR MODÈLE CANADIEN SEULEMENT) Les symboles de fusible (fusible de type rapide) et/ou de remplacement doivent avoir la même désignation. (fusible de type lent) sur CCI indiquent que les pièces (FOR USA MODEL ONLY) 1. SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. 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 CUSTOMER. 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 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. 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, 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 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 information, 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. Device under test Test all exposed metal surfaces Reading should Leakage not be above current 0.5mA tester Also test with plug reversed (Using AC adapter plug as required) Earth ground AC Leakage Test 2 A-407R 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 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. (1) PACKING PARTS LIST Except MV type 15 5 6 7 1 (Except MY/GR type) 2 (MY/EW and MY/GR types Only) 3 (MY/EW type Only) 4 Separate NSP NSP NSP 2.1 PACKING MV type Only 16 17 14 Mark No. 1 Description Part No. Operating Instructions See Contrast table(2) (English) 2 Operating Instructions See Contrast table(2) (German) 3 Operating Instructions See Contrast table(2) (French/Italian/Dutch/Swedish/Spanish/Portugese) 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Warranty Card Remote Control Unit (CU-A013) Battery Cover Dry Cell Battery (R6P,AA) Side Protector L Side Protector R ····· Packing Case Literature Bag Packing Sheet Air Cap Power Cord Power Cord with Fuse Fuse (T5A) ARY7008 AXD7164 AZN2249 AEX-010 AHA7127 AHA7128 AHD7565 AHG-117 AHG1016 See Contrast table(2) See Contrast table(2) See Contrast table(2) See Contrast table(2) 12 Separate 13 8 FR ON NSP T 9 11 (2) CONTRAST TABLE A-407R/MY/EW, MY/GR and MV are constructed the same except for the following : Mark No. Symbol and Description Part No. MY/EW Type ARB7139 ARC7187 ARC7188 MY/GR Type Not used ARC7187 Not used MV Type ARB7139 Not used Not used Remarks 1 Operating Instructions (English) 2 Operating Instructions (German) 3 Operating Instructions (French/Italian/Dutch/Swedish/Spanish/Portuguese) NSP 14 15 16 17 Air Cap Power Cord Power Cord with Fuse Fuse (T5A) Not used ADG1154 Not used Not used Not used ADG1154 Not used Not used AHG1087 Not used ADG1156 AEK1046 3 A-407R 2.2 EXTERIOR 42 39 36 42 42 39 39 8 15 16 19 4 48 44 3 43 34 37 5 2 28 7 15 45 45 44 44 6 26 1 15 45 15 45 15 26 24 24 15 45 15 26 39 18 41 38 47 30 27 16 49 9 10 10 41 27 35 43 17 17 45 17 13 20 MY/EW, MY/GR Types only 42 39 42 42 42 29 11 23 23 23 42 40 46 31 33 31 32 42 14 22 26 21 21 25 12 23 23 14 26 4 A-407R (1) EXTERIOR PARTS LIST Mark No. 1 2 3 4 5 6 7 8 9 10 NSP 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Description FRONT L Assy FRONT R Assy POWER SW Assy AC PRIMARY Assy HEADPHONE Assy VOLUME Assy AF Assy Fuse (FU1, T2A L250V) Flexible Cable (J1, 21P) (AF CN202 - FRONT R CN601) Washer Power Transformer (T1) Chassis Rear Panel Insulator Screw Screw Screw (4 × 10) Nut PCB Mold Barrier PCB Holder Stud Cover PCB Mold Radiator Plate B Locking Card Spacer Part No. AWX7054 AWX7050 AWX7057 See Contrast table(2) AWX7052 AWX7055 AWX7053 AEK1057 ADD1114 ABE1002 ATS7202 ANA7048 See Contrast table(2) PNW2766 ABA1018 ABA1050 ABA7047 ABN-065 AMR7222 AEC7072 AEC7057 AEC7096 AMR1525 AMR7223 DEC1908 Mark No. 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Description Screw LED Lens IR Filter LED Lens T Name Plate Rotary Knob A Rotary Knob B Volume Knob Speaker Button Main Power Button Bonnet Case Panel Base Front Panel Screw Terminal Screw Nut Screw Screw Screw Washer LED Lens B LED Lens Power Button Screw Part No. ABA-298 AAK2459 AAK7532 AAK7544 AAM7004 AAB7148 AAB7149 AAB7147 AAD7435 AAD7437 ANE7185 AMB7484 ANB7112 BBT30P080FZK AKE-031 NK90FUC ABA1006 ABA1009 BPZ30P080FMC WG40FCC AAK7538 PNW2019 AAD7436 BMZ30P080FCU NSP NSP NSP NSP NSP (2) CONTRAST TABLE A-407R/MY/EW, MY/GR and MV are constructed the same except for the following : Mark No. Symbol and Description Part No. MY/EW Type AWX7051 ANC7646 MY/GR Type AWX7051 ANC7646 MV Type AWX7056 ANC7660 Remarks 4 AC PRIMARY Assy 13 Rear Panel 5 1 2 3 4 A-407R 3. SCHEMATIC DIAGRAM 3.1 OVERALL CONNECTION DIAGRAM A F HEADPHONE ASSY (AWX7052) D FRONT R ASSY (AWX7050) B A AF ASSY (AWX7053) C C VOLUME ASSY (AWX7055) D 6 1 2 3 4 5 6 7 8 A-407R Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". A B FRONT L ASSY (AWX7054) E AC PRIMARY ASSY (MY/EW, MY/GR : AWX7051) (MV : AWX7056) G POWER SW ASSY (AWX7057) B C D 7 5 6 7 8 1 2 3 4 A-407R 3.2 AF ASSY C CN501 A B C D : AUDIO SIGNAL ROUTE 8 A 1 2 3 4 5 6 7 8 A-407R D CN601 E CN803 A A AF ASSY (AWX7053) B TO POWER TRANSFORMER T1 C L406 ATX1012 D F 5 6 J5 7 A 8 9 1 2 3 4 A-407R 3.3 FRONT L AND VOLUME ASSEMBLIES A B FRONT L ASSY (AWX7054) B C D 10 B 1 2 3 4 D J4 FRONT L ASSY S 701 : POWER STANDBY/ON S 702 : LOUDNESS S 703 : SPEAKERS A S 704 : SPEAKERS B 5 6 7 8 A-407R A C VOLUME ASSY (AWX7055) B C A CN203 : AUDIO SIGNAL ROUTE D 5 6 7 C 8 11 1 2 3 4 A-407R 3.4 FRONT R, AC PRIMARY, HEADPHONE AND POWER SW ASSEMBLIES A E AC PRIMARY ASSY (MY/EW, MY/GR : AWX7051) (MV : AWX7056) FU1 T2A L 250V AEK1057 (A-407R/MY/EW, MY/GR ONLY) TO POWER TRANSFORMER T1 J2 NP 1/50 YA A 47/10 AC POWER CORD B · NOTE FOR FUSE REPLACEMENT CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY. D FRONT R ASSY (AWX7050) C D 12 DE 1 2 3 4 5 6 7 8 A-407R A G POWER SW ASSY (AWX7057) A CN401 F HEADPHONE ASSY (AWX7052) B FRONT R ASSY S 601 : INPUT SELECTOR S 603 : TAPE2 MONITOR S 604 : DIRECT S 606 : REC SELECTOR CN202 TC74HC107AP B D TC74HC00AP 5 6 7 DFG 8 13 CN701 A C 1 2 3 4 A-407R 4. PCB CONNECTION DIAGRAM 4.1 AF ASSY A A AF ASSY POWER TRANSFORMER T1 E CN803 B NOTE FOR PCB DIAGRAMS: 1. Part numbers in PCB diagrams match those in the schematic diagrams. 2. A comparison between the main parts of PCB and schematic diagrams is shown below. Symbol in PCB Diagrams Symbol in Schematic Diagrams Part Name B BCE B BCE D DGS G C EB C E Transistor C EB C E Transistor with resistor G SD G S Field effect transistor D SG D S MOS Field effect transistor C S DG 1 3 2 S G Resistor array 3-terminal regulator 3. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram. 4. Viewpoint of PCB diagrams Capacitor Connector SIDE A SIDE B P.C.Board Chip Part D C SIDE A CN501 F 14 A 1 J5 2 3 4 5 6 7 8 A-407R Q401 A Q406 Q413 Q414 Q451 IC451 IC151 IC452 Q452 B IC101 Q409 Q410 Q411 Q407 Q412 Q323 Q408 Q324 Q319 Q101 Q151 Q322 Q104 Q153 VR301 VR302 Q313 Q318 C D CN601 Q309 Q312 Q325 Q334 IC301 Q301 Q304 D IC251 (ANP7227-A) 5 6 7 Q251 A 8 15 1 2 3 4 A-407R 4.2 FRONT L AND VOLUME ASSEMBLIES A B FRONT L ASSY D J4 B (ANP7227-A) VR752 Q701 Q702 Q707 Q706 Q704 Q703 IC751 Q751 Q752 VR751 Q705 SIDE A Q502 Q501 C Q503 Q507 Q509 Q506 Q505 Q504 Q510 Q508 Q513 Q512 D A CN203 Q511 Q514 C VOLUME ASSY 16 (ANP7227-A) BC 1 2 3 4 1 2 3 4 A-407R 4.3 FRONT R ASSY D FRONT R ASSY Q616 Q606 A Q610 Q617 IC603 Q609 Q608 IC602 Q618 Q605 B Q604 IC601 Q603 A Q602 CN202 VR601 C Q601 Q612 Q613 Q611 Q614 Q615 Q607 (ANP7228-A) J4 D B CN701 SIDE A 1 2 3 D 4 17 1 2 ...