Aiwa-CX-BK1-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL COMPACT DISC RECEIVER US model COMPACT DISC DECK RECEIVER AEP, UK, Chilean, Peruvian and Mexican models US Model AEP Model UK Model E Model CX-BK1 Ver 1.1 2004.02 9-877-426-02Sony Corporation 2004B05-1Home Audio Company C 2004.02Published by Sony Engineering Corporation SPECIFICATIONS

2、 CX-BK1 is the amplifier, CD player, tape deck and tuner section in BMZ-K1. Tape deck is not loaded in US model. TUNER FM tuning range87.5 MHz to 108 MHz FM usable sensitivity (IHF) 13.2 dBf FM antenna terminal75 (unbalanced) AM tuning range530 kHz to 1710 kHz (10 kHz step) 531 kHz to 1710 kHz (9 kH

3、z step) AM usable sensitivity350 V/m AM antennaLoop antenna AMPLIFIER Power output US model:110 W + 110 W (40 Hz - 20 kHz, THD less than 1%, 6 ) 140 W + 140 W (40 Hz - 20 kHz, THD 10%, 6 ) Chilean, Peruvian and Mexican models: 140 W + 140 W (1 kHz, THD less than 1%, 6 ) 180 W + 180 W (1 kHz, THD 10%

4、, 6 ) Total harmonic distortion0.08 % (90 W, 1 kHz, 6 ) InputLINE IN VIDEO: 1.0 Vp-p (75 ) LINE IN AUDIO: 1.1 V AUX (MD) IN: 1.1 V MIC: 2.5mV (Chilean, Peruvian and Mexican models) OutputsSPEAKERS: 6 or more PHONES: 32 or more AUX (MD) OUT: 500 mV VIDEO OUT: 1.0 Vp-p (75 ) CD PLAYER LaserSemiconduct

5、or laser ( = 800 nm) Emission duration: continuous D/A converter1 bit dual Signal-to-noise ratio85 dB (1 kHz, 0 dB) Wow and flutterUnmeasurable CASSETTE DECK (Except US model) Track format4 tracks, 2 channels stereo Frequency response100 Hz 10000 Hz ( 3dB) Recording systemAC bias HeadsRecording/play

6、back 1, erase 1 GENERAL Power requirements US model:120 V, 60 Hz Mexican model:127 V, 60 Hz Chilean and Peruvian models: 120 V/220 230 V/240 V AC (switchable), 50/60 Hz Licensed by BBE Sound, Inc. under USP4638258, 5510752 and 5736897. Model Name Using Similar MechanismNEW CD Section CD Mechanism Ty

7、peCDM69BV-30CBD64NS Base Unit NameBU-30CBD64NS Optical Pick-up NameA-MAX.3 TAPE Section Model Name Using Similar MechanismNEW (Except US model) Tape Transport Mechanism TypeCMAL1Z240A Power consumption US model:120 W Chilean and Peruvian models: 155 W Mexican model:160 W Power consumption in standby

8、 mode US model:with ECO mode on: 0.25 W with ECO mode off: 20 W Chilean and Mexican models: with ECO mode on: 0.25 W with ECO mode off: 28 W Dimensions (w/h/d)Approx. 211 379 419 mm (8 3/8 15 16 5/8 in.) Mass US model:Approx. 8.6 kg (19 lbs) Chilean and Peruvian models: Approx. 9.9 kg Specifications

9、 and external appearance are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 CX-BK1 2 Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. Flexible Circuit Board Repairing Keep the temper

10、ature of the soldering iron around 270 C dur- ing repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. CAUTION Use of controls or adjustments or performance of procedures

11、other than those specified herein may result in hazardous ra- diation exposure. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE

12、PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. The following caution label is located inside the unit. SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check before releasing the set to the customer: Check the antenna

13、terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must n

14、ot exceed 0.5 mA (500 microamperes.). Leakage current can be measured by any one of three methods. 1.A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2.A battery-operated AC milliammeter. The Data Precision 245 digit

15、al multimeter is suitable for this job. 3.Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indica- tion is 0.75 V, so analog meters must have an accurate low- voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex- amples of a passive VOM

16、 that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suit- able. (See Fig. A) Fig. A.Using an AC voltmeter to check AC leakage. 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground UNLEADED SOLDER Boards requiring use of unleaded sol

17、der are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temper

18、ature about 40 C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 C. Caution: The printed pattern (copper foil) may peel away i

19、f the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges oc- cur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder bu

20、t unleaded solder may also be added to ordinary solder. CLASS 1 LASER PRODUCT LUOKAN 1 LASER LAITE KLASS 1 LASER APPARAT This appliance is classified as a CLASS 1 LASER product. This label is located on the rear exterior. RadioFans.CN 收音机爱 好者资料库 CX-BK1 3 TABLE OF CONTENTS 1.SERVICING NOTES.4 2.GENER

21、AL Location of Controls .6 3.DISASSEMBLY 3-1.Disassembly Flow .8 3-2.Panel .9 3-3.Top Panel Block .9 3-4.Front Panel Assy . 10 3-5.MAIN Board . 10 3-6.Rear Cover. 11 3-7.Tuner (FM/AM) . 11 3-8.SPEAKER Board . 12 3-9.ACDC Board, Power Transformer. 12 3-10. AMP Board . 13 3-11. CD Mechanism Deck (CDM6

22、9BV-30CBD64NS). 13 3-12. Signal Cassette Mechanism . 14 3-13. Base Unit Section. 14 3-14. Base Unit (BU-30CBD64NS). 15 3-15. BD Board. 15 3-16. SW (1) Board, SW (2) Board, SW (3) Board, SW (4) Board, Bracket (Top) Assy. 16 3-17. CONNECTOR Board . 16 3-18. Motor (Stocker) Assy (Stocker) (M761) . 17 3

23、-19. Motor (Roller) Assy (Roller) (M781). 17 3-20. Motor (Mode) Assy (Mode) (M771) . 18 3-21. Rubber Roller (Slider) Assy . 18 3-22. Timing Belt (Front/Rear) . 19 3-23. Cam (Gear). 19 3-24. SENSOR Board. 20 4.ASSEMBLY 4-1.How to Install the Cam (Eject Lock). 21 4-2.How to Install the Cam (Gear). 21

24、4-3.How to Install the Gear (Mode C) . 22 4-4.How to Install the Gear (Mode Cam) . 22 4-5.How to Install the Rotary Encoder (S702), Gear (Stocker Communication) . 23 4-6.How to Install the Stocker Assy. 23 5.TEST MODE. 24 6.MECHANICAL ADJUSTMENTS. 25 7.ELECTRICAL ADJUSTMENTS Deck Section . 25 CD Sec

25、tion . 28 8.DIAGRAMS 8-1.Block Diagram CD Section . 31 8-2.Block Diagram TUNER/TAPE/USB Section . 32 8-3.Block Diagram AMP Section . 33 8-4.Block Diagram POWER SUPPLY Section . 34 8-5.Note for Printed Wiring Boards and Schematic Diagrams . 35 8-6.Printed Wiring Board BD Board . 36 8-7.Schematic Diag

26、ram BD Board . 37 8-8.Printed Wiring Boards CHANGER Section . 38 8-9.Schematic Diagram CHANGER Section . 39 8-10. Printed Wiring Board DECK Board (Except US model) . 40 8-11. Schematic Diagram DECK Board (Except US model) . 41 8-12. Printed Wiring Board MAIN Board . 43 8-13. Schematic Diagram MAIN B

27、oard (1/4) . 44 8-14. Schematic Diagram MAIN Board (2/4) . 45 8-15. Schematic Diagram MAIN Board (3/4) . 46 8-16. Schematic Diagram MAIN Board (4/4) . 47 8-17. Printed Wiring Board USB AUX Board . 48 8-18. Schematic Diagram USB AUX Board . 49 8-19. Printed Wiring Boars MIC Board (Chilean, Peruvian a

28、nd Mexican models) . 50 8-20. Schematic Diagram MIC Board (Chilean, Peruvian and Mexican models) . 51 8-21. Schematic Diagram AMP Board (1/2) . 52 8-22. Schematic Diagram AMP Board (2/2) . 53 8-23. Printed Wiring Board AMP Board . 54 8-24. Printed Wiring Board HEADPHONE Board . 55 8-25. Schematic Di

29、agram HEADPHONE Board . 55 8-26. Printed Wiring Board SPEAKER Board . 56 8-27. Schematic Diagram SPEAKER Board . 57 8-28. Printed Wiring Boards KEY Section . 58 8-29. Schematic Diagram KEY Section . 59 8-30. Printed Wiring Boards LCD Section . 60 8-31. Schematic Diagram LCD Section . 61 8-32. Printe

30、d Wiring Board ACDC Board . 62 8-33. Schematic Diagram ACDC Board . 63 8-34. Printed Wiring Board PT Board (US, AEP and UK models) . 64 8-35. Schematic Diagram PT Board (US, AEP and UK models) . 65 8-36. Printed Wiring Board PT Board (Chilean, Peruvian and Mexican models) . 66 8-37. Schematic Diagra

31、m PT Board (Chilean, Peruvian and Mexican models) . 67 8-38. IC Pin Function Description . 73 9.EXPLODED VIEWS 9-1.Panel Section . 79 9-2.Top Panel Block . 80 9-3.Front Panel Block-1 . 81 9-4.Front Panel Block-2 . 82 9-5.Front Panel Block-3 . 83 9-6.Chassis Block-1. 84 9-7.Chassis Block-2. 85 9-8.CD

32、 Mechanism Deck Section-1 (CDM69BV-30CBD64NS) . 86 9-9.CD Mechanism Deck Section-2 (CDM69BV-30CBD64NS) . 87 9-10. CD Mechanism Deck Section-3 (CDM69BV-30CBD64NS) . 88 9-11. CD Mechanism Deck Section-4 (CDM69BV-30CBD64NS) . 89 9-12. CD Mechanism Deck Section-5 (CDM69BV-30CBD64NS) . 90 9-13. CD Mechan

33、ism Deck Section-6 (CDM69BV-30CBD64NS) . 91 9-14. Optical Pick-up Section (BU-30CBD64NS) . 92 10.ELECTRICAL PARTS LIST. 93 RadioFans.CN 收音机爱 好者资料库 4 CX-BK1 SECTION 1 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer elect

34、ro- static break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible bo

35、ard is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emis- sion, observe

36、from more than 30 cm away from the objective lens. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveforms is output three times. MODEL IDENTIFICATION Rear Cover MODELPART No. US model4-245-039-0 Chilean and Peruvian

37、models4-245-039-1 AEP and UK models4-245-039-2 Mexican model4-245-039-3 PART No. SERVICE POSITION Tape mechanism deck (except US) Connect the wire (flat type) (8 core) to the main board (CN903) and the mechanism deck. Connect the wire (flat type) (11 core) to the deck board (CN008) and the main boar

38、d (CN009). 5 CX-BK1 CD mechanism deck In checking the CD mechanism deck section, prepare three extension jigs (Part No. J-2501-242-A:1.00 mm 11core/ Part No. J-2501-245-A: 1.00 mm 23 core/Part No. J-2501-248-A: 1.00mm 27 core). Note: The CD mechanism deck of this model is a vertical type and putting it vertically as shown in the figure is the standard position. When checking signals such as RF waveforms, operate it with the CD mechanism deck in the standard position as shown below. main board, ACDC boa