Pioneer-A207-int-sm维修电路原理图.pdf

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1、ORDER NO. PIONEER ELECTRONIC 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 ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD

2、. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923 ? ? ? ? ? ? PIONEER ELECTRONIC CORPORATION 1998 RRV1935 STEREO AMPLIFIER A-207 1. SAFETY INFORMATION.2 2. EXPLODED VIEWS AND PARTS LIST.3 3. SCHEMATIC DIAGRAM.6 4. PCB CONNECTION DIAGRAM.14 5. PCB PARTS LIST.22 6. ADJUSTMENT.25 CONTENTS

3、7. GENERAL INFORMATION . 26 7.1 IC . 26 7.2 DISASSEMBLY .27 7.3 BLOCK DIAGRAM.28 8. PANEL FACILITIES AND SPECIFICATIONS.29 THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). Type Model A-207 MLXJ SDXJ AC220 230V Power Requirement The voltage can be converted by the following method. Wi

4、th the voltage selector T ZZE APR. 1998 Printed in Japan AC110V/120 127V/220V/240V PHONES A SPEAKERS B POWER OFFON STEREO AMPLIFIER -? z?Direct Energy MOS TAPE 1 /MD TAPE 2 MONITOR LINETUNERPHONOCD BASS + TREBLE + VOLUME MINMAX LOUDNESSDIRECT BALANCE RL INPUT SELECTOR TAPE 2 MONITOR RadioFans.CN 收音机

5、爱好者资料库 A-207 2 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 equipment and tools, and have been trained to properly and safely repair complex products such as

6、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 quali

7、fied 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

8、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 (slow operating fuse) on PCB indicate that replacement

9、parts must be of identical designation. REMARQUE (POUR MODLE CANADIEN SEULEMENT) Les symboles de fusible (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 IN

10、DICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. 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

11、 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 s

12、chematics 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 Safe

13、ty 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. 1. SAFETY PRECAUTIONS

14、 The following check should be performed for the continued protection of the customer and service technician. 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

15、 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. (FOR USA MODEL

16、 ONLY) Leakage current tester Reading should not be above 0.5mA Device under test Test all exposed metal 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 A-207 2.1 PACKING Mark No. Description Part No. 2. EXPLODED VIEWS

17、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

18、adjacent to mark on the product are used for disassembly. 1Operating InstructionsARE7158 (English/Spanish/Chinese) 2Side Pad LAHA7205 3Side Pad RAHA7206 4Sub PadAHA7218 5Packing CaseAHD7562 NSP6Literature BagAHG1180 7Packing SheetAHG7015 8Caution Label 220VSee Contrast table(2) 9Power CordSee Contra

19、st table(2) (1) PACKING PARTS LIST (2) CONTRAST TABLE A-207/MLXJ and SDXJ are constructed the same except for the following : 6 7 2 4 5 3 9 1 8 (SDXJ type Only) FRONT Mark MLXJ typeSDXJ type 8Caution Label 220VNot usedARR1003 9Power CordADG1154ADG1158 Part No. Remarks Symbol and DescriptionNo. Radio

20、Fans.CN 收音机爱好者资料库 4 A-207 2.2 EXTERIOR 41 18 28 37 39 34 35 5 41 16 1 2 9 45 31 33 31 32 38 27 2744 14 39 21 21 39 14 47 17 12 22 19 19 23 23 23 13 39 SDXJ Types Only 42 39 40 39 39 7 15 39 4 43 8 15 15 15 6 39 11 17 39 39 26 26 39 39 39 39 36 SDXJ Types Only RadioFans.CN 收音机爱好者资料库 5 A-207 1FRONT

21、L AssyAWX7122 2FRONT R AssyAWX7121 3 4AC PRIMARY AssySee Contrast table(2) NSP5HEADPHONE AssyAWX7114 6VOLUME AssyAWX7112 7AF AssyAWX7116 8Fuse (FU1)See Contrast table(2) 9Flexible Cable (19P)ADD7032 (AF CN202-FRONT R CN601) 10 11Power Transformer (T1)See Contrast table(2) NSP12ChassisANA7064 13Rear

22、PanelSee Contrast table(2) 14InsulatorAMR7198 15ScrewABA1018 16ScrewABA1027 17Screw (4 10)ABA7047 18NutABN-065 19PCB SupportAEC7006 20 NSP21PCB HolderAEC7057 NSP22Cord Clamp FAEC7134 23PCB MoldAMR2533 24 25 Mark No. Description Part No.Mark No. Description Part No. (1) EXTERIOR PARTS LIST 26ScrewPBA

23、1096 27LED LensAAK2459 28PVC CoverAAK7541 29 30 31Rotary Knob AAAB7148 32Rotary Knob BAAB7149 33Volume KnobAAB7150 34Speaker ButtonAAD7435 35Power JointAAD7439 36Bnnet CaseANE7183 37Panel BaseAMB7489 38Front PanelAMB7492 39ScrewBBZ30P080FZK 40ScrewBCZ30P060FCC 41NutNK90FUC 42Voltage Selector (S2)See

24、 Contrast table(2) 43Fuse (FU2, FU3 : 2A)See Contrast table(2) 44LED Lens AAAK7537 45PIONEER BadgePAM1755 46 47FootREC1263 (2) CONTRAST TABLE A-207/MLXJ and SDXJ are constructed the same except for the following : Mark MLXJ typeSDXJ type 4AC PRIMARY ASSYAWX7113AWX7115 8Fuse (FU1 : 1.25A)REK1023Not u

25、sed 8Fuse (FU1 : 6.3A)Not usedREK1030 11Power TransformerATS7190Not used (T1 : AC220230V) 11Power TransformerNot usedATS7191 (T1 : AC110V/120127V/220V/240V) 13Rear PanelANC7642ANC7641 42Voltage SelectorNot usedAKX-507 43Fuse (FU2, FU3 : 1.25A)Not usedREK1023 Part No. Remarks Symbol and DescriptionNo

26、. RadioFans.CN 收音机爱好者资料库 A-207 6 A B C D 1234 1234 3. SCHEMATIC DIAGRAM 3.1 OVERALL CONNECTION DIAGRAM B HEAD PHONE ASSY AWX7114 F FRONT R ASSY AWX7121 A VOLUME ASSY AWX7112 D AF ASSY AWX7116 451 RadioFans.CN 收音机爱好者资料库 A-207 7 A B C D 5678 5678 Note : When ordering service parts, be sure to refer

27、to EXPLODED VIEWS and PARTS LIST or PCB PARTS LIST. E FRONT L ASSY AWX7122 C AC PRIMARY ASSY AWX7113(MLXJ) AWX7115(SDXJ) SDXJ type AKP1053 SDXJ only MLXJ type SDXJ type SDXJ type 14 16 18 1602 POWER CORD MLXJ type SDXJ type POWER TRANSFORMER POWER TRANSFORMER VOLTAGE SELECTOR RadioFans.CN 收音机爱好者资料库

28、 A-207 8 A B C D 1234 1234 3.2 VOLUME AND HEAD PHONE ASSEMBLIES AB B HEAD PHONE ASSY AWX7114 DJ551A A VOLUME ASSY AWX7112 E J3 DCN203 2 2 : AUDIO SIGNAL ROUTE RadioFans.CN 收音机爱好者资料库 A-207 9 A B C D 1234 1234 3.3 AC PRIMARY ASSY C C AC PRIMARY ASSY AWX7113(MLXJ) AWX7115(SDXJ) MLXJ type SDXJ type SDX

29、J type SDXJ model NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY. CAUTION - LIVE NEUTRAL TO POWER TRANSFORMER TO POWER CORD TO S2 VOLTAGE SELECTOR REK1023 T1.25AL250V REK1023 T1.25AL250V FU1 REK1023 : MLXJ type T1.25AL250V REK1030 : S

30、DXJ type T6.3AL250V POWER ASG1035 RadioFans.CN 收音机爱好者资料库 A-207 10 A B C D 1234 1234 3.4 AF ASSY BA BA BA BA BA BA 1/4WR 1/4WR 1/4WR 1/4WR ACN501 IDLE ADJ. (R CH) IDLE ADJ. (L CH) D RadioFans.CN 收音机爱好者资料库 A-207 11 A B C D 5678 5678 , BA : CEBA FCN601 D AF ASSY AWX7116 BJ551 : AUDIO SIGNAL ROUTE DJ.

31、 DJ. CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491001 MFD, BY LITTELFUSE INK. FOR IC454(AEK7009). TO POWER TRANSFORMER D RadioFans.CN 收音机爱好者资料库 A-207 12 A B C D 1234 1234 3.5 FRONT L AND FRONT R ASSEMBLIES E E FRONT L ASSY AWX7122 DCN202 ACN502 FRONT L

32、 ASSY S702 : LOUDNESS S703 : SPEAKER A S704 : SPEAKER B SPA F RadioFans.CN 收音机爱好者资料库 A-207 13 A B C D 5678 5678 F F FRONT R ASSY AWX7121 FRONT R ASSY S601 : INPUT SELECTOR CD TUNER PHONE LINE TAPE1/MD S602 : DIRECT S603 : TAPE2 MONITOR INPUT SELECTOR NC NC NC NC RadioFans.CN 收音机爱好者资料库 A-207 14 A B

33、 C D 1234 1234 A 4. PCB CONNECTION DIAGRAM 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. 3. The parts mounted on this PCB include all necessary parts for several dest

34、inations. For further information for respective destinations, be sure to check with the schematic diagram. 4. View point of PCB diagrams. Symbol In PCB Diagrams Symbol In Schematic Diagrams Part Name B C E D D G G S S B C E BCE DGS BCEBCE BCE Transistor Transistor with resistor Field effect transis

35、tor Resistor array 3-terminal regulator Capacitor Connector P.C.BoardChip Part SIDE A SIDE B SIDE A SIDE B VOLUME ASSYA EJ3 DCN203 (ANP7232-A) Q513,Q514 VR501 VOLUME ASSYA (ANP7232-A) Q504,Q501 Q502,Q503 Q506,Q505 Q508,Q507 Q510,Q509 4.1 VOLUME ASSY RadioFans.CN 收音机爱好者资料库 A-207 15 A B C D 1234 1234

36、 4.2 HEADPHONE AND AC PRIMARY ASSEMBLIES B C (ANP7232-A) HEADPHONE ASSYB J551AD (ANP7232-A) HEADPHONE ASSYB (ANP7232-A) POWER TRANSFORMER POWER CORD VOLTAGE SELECTOR (SDXJ type only) AC PRIMARY ASSYC SIDE A SIDE ASIDE B RadioFans.CN 收音机爱好者资料库 A-207 16 A B C D 1234 1234 4.3 AF ASSY D AF ASSYD POWER

37、TRANSFORMER RadioFans.CN 收音机爱好者资料库 A-207 17 A B C D 5678 5678 D SIDE A FCN601 ACN501 BJ551 (ANP7232-A) Q153 Q341 IC101 IC451-IC453 Q333-Q336 Q324,Q326 Q452 IC301 Q451 Q323,Q325 IC454 VR301 VR302 RadioFans.CN 收音机爱好者资料库 A-207 18 A B C D 1234 1234 D AF ASSYD RadioFans.CN 收音机爱好者资料库 A-207 19 A B C D 5

38、678 5678 D SIDE B (ANP7232-A) Q151 IC151 Q152 Q338,Q337 Q340,Q339 Q102 Q101 Q104 Q103 Q332 Q328,Q327 Q318,Q330 Q322,Q320 Q316,Q314 Q312,Q310 Q304,Q303 Q311,Q309 Q315,Q313 Q321,Q319 Q317,Q329 Q331,Q343 RadioFans.CN 收音机爱好者资料库 A-207 20 A B C D 1234 1234 4.4 FRONT L ASSY E (ANP7231-A) FRONT L ASSYE Q70

39、2,Q703 Q704,Q705 Q708 Q707 VR751 VR752 Q701,IC751 (ANP7231-A) J602FCN502AJ603AG FRONT L ASSYE SIDE A SIDE B RadioFans.CN 收音机爱好者资料库 A-207 21 A B C D 1234 1234 4.5 FRONT R ASSY F FRONT R ASSYF (ANP7231-A) CN202DJ602AE IC601 VR601 FRONT R ASSYF (ANP7231-A) Q601-Q606 Q614-Q616 Q608-Q613 SIDE A SIDE B R

40、adioFans.CN 收音机爱好者资料库 A-207 22 5. PCB PARTS LIST 7 CONTRAST OF PCB ASSEMBLIES 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, w

41、hen replacing, be sure to use parts of identical designation. When ordering resistors, first convert resistance values into code form as shown in the following examples. Ex. 1When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J = 5%, and K

42、= 10%). 560 = 56 10 1 = 561. RD1/4PU 5 6 1 J 47k = 47 10 3 = 473 . RD1/4PU 4 7 3 J 0.5 = R50 . RN2H 5 0 K 1 = 1R0 . RS1P 1 0 K Ex. 2When there are 3 effective digits (such as in high precision metal film resistors). 5.62k = 562 10 1 = 5621 . RN1/4PC 5 6 2 1 F 7 LIST OF ASSEMBLIES Part No. A-207 / ML

43、XJ A-207 / SDXJ MarkPCB AssembliesRemarks NSPCONTROL ASSYAWG7012AWG7012 FRONT R ASSYAWX7121AWX7121 FRONT L ASSYAWX7122AWX7122 NSPAF COMPLEX ASSYAWM7355AWM7356 VOLUME ASSYAWX7112AWX7112 AC PRIMARY ASSYAWX7113AWX7115 NSP HEADPHONE ASSYAWX7114AWX7114 AF ASSYAWX7116AWX7116 AC PRIMARY ASSY AWX7113 and AW

44、X7115 are constructed the same except for the following: H3 H6FUSE CLIPNot usedAKR7001 802AC OUTLET 3PNot usedAKP1053 MarkRemarksSymbol and Description Part No. AWX7113AWX7115 C RadioFans.CN 收音机爱好者资料库 A-207 23 7 PARTS LIST FOR A-207/MLXJ VOLUME ASSY SEMICONDUCTORS Q513, Q5142SK246 Q501Q5102SK303 Q5

45、11DTC124EK D505, D506, D509, D5101SS352 D501D504, D507, D5081SS355 CAPACITORS C501, C502CCSQCH271J50 C513, C514CEAT100M50 C516CEAT330M25 C503, C504CFTYA473J50 C515CKCYF103Z50 RESISTORS R530RS1/10S100J VR501100k-A52ACS7011 Other ResistorsRS1/10S&J OTHERS CN50116P SOCKETKP200TA16L CN502CONNECTOR(7P)KP

46、E7 PCB BINDERVEF1040 AC PRIMARY ASSY SWITCHES AND RELAYS S801ASG1035 CAPACITORS C801, C80210000pF/AC250VACG7020 OTHERS CN801AC INLETAKP7005 H1, H2FUSE CLIPAKR7001 HEADPHONE ASSY CAPACITORS C551, C552CKSQYB392K50 OTHERS 551CABLE HOLDER(3P)51063-0305 J552CORD WITH PLUGDE005WE0 JA501JACKRKN1002 AF ASSY SEMICONDUCTORS IC454 (1A)AEK7009 IC453BA178M06T IC451BA178M15T IC452NJM79M15FA IC101TC9163AN A C B D IC301UPC4570C IC151UPC4570G2 Q311, Q312, Q329, Q3302SA1162 Q313, Q314, Q321, Q3222SA1255 Q4522SA1837 Q309, Q310, Q327, Q3282SC2712 Q315, Q316, Q319, Q32