Aiwa-CX-BK7-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL This system incorporates Dolby* Digital, Dolby Pro Logic (II) adaptive matrix surround decoder, and the DTS* Digital Surround System. * Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. *Manufactured

2、under license from Digital Theater Systems, Inc. “DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater Systems, Inc. US and foreign patents licensed from Dolby Laboratories. DVD DECK RECEIVER AEP Model UK Model E Model Australian Model CX-BK7 Ver 1.1 2004.02 9-961-333-02Sony

3、Corporation 2004B05-1Home Audio Company C 2004.02Published by Sony Engineering Corporation SPECIFICATIONS CX-BK7 is the amplifier, disc player, tape deck and tuner section in BMZ-K7D. Amplifie r section The following measured at AC 120, 127, 220, 240 V, 50/60 Hz Rated Power Output at Stereo mode Con

4、tinuous RMS power output (reference) Front speaker:150 + 150 watts (6 ohms at 1 kHz, 10% THD) Center speaker:50 watts (8 ohms at 1 kHz, 10% THD) Surround speaker:50 watts (8 ohms at 1 kHz, 10% THD) Inputs LINE IN AUDIO (phono jacks): voltage 1.1V, impedance 47 kilohms LINE IN VIDEO (phono jack): max

5、. input level 1Vp-p, unbalanced, Sync negative, impedance 75 ohms MD (AUX) IN (phono jacks): voltage 1.1V, impedance 47 kilohms MIC (phone jack):sensitivity 1 mV, impedance 10 kilohms Model Name Using Similar MechanismNEW DVD DVD Mechanism TypeCDM69DV-DVBU16V Section Optical Traverse Unit NameDBU-1

6、Tape deck Model Name Using Similar MechanismNEW Section Tape Transport Mechanism TypeCMAL1Z241A Continued on next page Outputs MD (AUX) OUT (phono jacks): voltage 500 mV, impedance 4.7 kilohms VIDEO OUT (phono jack): max. output level 1 Vp-p, unbalanced, Sync negative, load impedance 75 ohms S-VIDEO

7、 OUT (4-pin/mini-DIN jack): Y: 1 Vp-p, unbalanced, Sync negative, C: 0.286 Vp-p, load impedance 75 ohms COMPONENT VIDEO OUT: Y: 1 Vp-p, 75 ohms PB, PR: 0.7 Vp-p, 75 ohms PHONES (stereo mini jack): accepts headphones of 32 ohms or more Front speaker:Use only the supplied speaker SX-BK7 Surround speak

8、er:Use only the supplied speaker SX-BK7R Center speaker:Use only the supplied speaker SX-BK7C SUB WOOFER OUT:voltage 1 V, impedance 1 kilohm Disc player section SystemCompact disc and digital audio and video system Laser Semiconductor laser (DVD: =657 nm, CD: =793 nm) Emission duration: continuous F

9、requency response DVD (PCM 48 kHz): 2 Hz 22 kHz (1 dB) CD: 2 Hz 20 kHz (1 dB) Video color system format NTSC, PAL OPTICAL DIGITAL OUT (Euro/UK, Russian models (Square optical connector jack, rear panel) Wavelength660 nm Tape deck section Recording system 4-track 2-channel stereo Frequency response 1

10、00 10,000 Hz (3 dB), using Sony TYPE I cassette only) RadioFans.CN 收音机爱 好者资料库 CX-BK7 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 temperature of

11、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 other tha

12、n 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 PART NUMB

13、ERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. UNLEADED SOLDER Boards requiring use of unleaded solder 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 t

14、o their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature 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. Solderin

15、g irons using a temperature regulator should be set to about 350 C. Caution: The printed pattern (copper foil) may peel away if 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 no

16、t to let solder bridges oc- cur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. Tuner section FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range Russian model:65.0 - 74.0 MHz 87.5

17、- 108.0 MHz Other models:87.5 -108.0 MHz AntennaFM lead antenna Antenna terminals75 ohm unbalanced Intermediate frequency10.7 MHz AM tuner section Tuning range Latin American models:530 1,710 kHz (with the interval set at 10 kHz) 531 1,710 kHz (with the interval set at 9k Hz) Saudi Arabian model:531

18、 1,602 kHz (with the interval set at 9 kHz) Other models:531 1,602 kHz (with the interval set at 9 kHz) 530 1,710 kHz (with the interval set at 10 kHz) AntennaAM loop antenna Antenna terminalsExternal antenna terminal Intermediate frequency450 kHz General Power requirements Euro/UK, Russian models:

19、230 V AC, 50/60 Hz Australian model:230 240 V AC, 50/60 Hz Saudi Arabian model:120 127 V, 220 V AC, 50/60 Hz Adjustable with voltage selector Other models:120 V, 220 V or 230 240 V AC, 50/60 Hz Adjustable with voltage selector Power consumption250 watts 0.4 watts (in ECO MODE) Dimensions (w/h/d) App

20、rox. 211 379 419 mm MassApprox. 10.8 kg Design and specifications are subject to change without notice. This appliance is classified as a CLASS 1 LASER product. This label is located on the rear exterior. The following caution label is located inside the apparatus. RadioFans.CN 收音机爱 好者资料库 CX-BK7 3 Y

21、ou can play back the following discs on this system. Other discs cannot be played back. List of playable discs Playable discs Format of discs Disc logo Contents DVD VIDEOsAudio + Video VIDEO CDs Audio + Video Audio CDsAudio CD-R/CD-RW (audio data) Audio The “DVD VIDEO” logo is a trademark. Region co

22、de of DVDs you can play on this system Your system has a region code printed on the back of the unit and will only play DVDs labeled with identical region code. DVDs labeled will also be played on this system. If you try to play any other DVD, the message “Playback prohibited by area limitations.” w

23、ill appear on the TV screen. Depending on the DVD, no region code indication may be labeled even though playing the DVD is prohibited by area restrictions. Discs that this system cannot play CD-ROMs (except for extension “.MP3,” “.JPG,” or “.JPEG”) CD-Rs/CD-RWs other than those recorded in the follo

24、wing formats: music CD format video CD format MP3/JPEG format that conforms to ISO9660*1 Level 1/Level 2, Joliet or Multi Session*2 CD-R/CD-RW (MP3 files) Audio CD-R/CD-RW (JPEG files) Video Format of discs Disc logoContents ALL Region code (Euro/UK, Russian models) DVD DECK RECEIVER AC:230V 50/60Hz

25、 W MODEL NO. CX-BK7 SERIAL NO. SERIAL NO.AREA 4-249-187-2 CEL/CEK Sony Corporation X X Region code (except Euro/UK, Russian models) Data part of CD-Extras Super Audio CDs Progressive JPEG format files cannot be played on this system. DVD-RWs in VR mode (DVD-RWs created in VR (Video Recording) mode a

26、llow the contents to be programed or edited.) DVD-ROMs DVD Audio discs A DVD with a different region code. Audio tracks in MP3PRO format. A disc that has a non-standard shape (e.g., card, heart). A disc with paper or stickers on it. A disc that has the adhesive, cellophane tape, or a sticker still l

27、eft on it. *1ISO9660 Format The most common international standard for the logical format of files and folders on a CD-ROM. There are several specification levels. In Level 1, file names must be in the 8.3 format (no more than eight characters in the name, no more than three characters in the extens

28、ion “.MP3” or “.JPG”) and in capital letters. Folder names can be no longer than eight characters. There can be no more than eight nested folder levels. Level 2 specifications allow file names and folder names up to 31 characters long. Each folder can have up to 8 trees. For Joliet in the expansion

29、format (file and folder names can have up to 64 characters) make sure of the contents of the writing software, etc. *2Multi Session This is a recording method that enables adding of data using the Track-At-Once method. Conventional CDs begin at a CD control area called the Lead-in and end at an area

30、 called Lead-out. A Multi Session CD is a CD having multiple sessions, with each segment from Lead-in to Lead-out regarded as a single session. CD-Extra: This format records audio (audio CD data) on the tracks in session 1 and data on the tracks in session 2. RadioFans.CN 收音机爱 好者资料库 CX-BK7 4 Notes o

31、n discs This system can play CD-R/CD-RW discs edited by the user. However, note that playback of some discs may not be possible depending on the recording device used for recording or the disc condition. Discs recorded on CD-R/CD-RW drives may not be played back because of scratches, dirt, recording

32、 condition or the drivers characteristics. CD-R and CD-RW discs that have not been correctly finalized (processing to allow play by a normal CD player) cannot be played. CD-R and CD-RW discs recorded in multi- session that have not ended by “closing the session” are not supported. The system may be

33、unable to play MP3/JPEG format files that do not have the extender “.MP3,” “.JPG,” or “.JPEG.” Attempting to play non-MP3/JPEG format files that have the extender “.MP3,” “.JPG,” or “.JPEG” may result in noise or malfunction. Playback is possible up to 8 levels. With formats other than ISO9660 level

34、 1 and 2, folder names or file names may not be displayed correctly. The following discs take a longer time to start playback: a disc recorded with a complicated tree structure. a disc recorded in Multi Session. a disc to which data can be added (non- finalized disc). Some CD-Rs, CD-RWs, DVD-Rs or D

35、VD- RWs (in video mode) (DVD-RWs created in video mode have the same format as a DVD VIDEO) cannot be played on this system depending upon the recording quality or physical condition of the disc, or the characteristics of the recording device. Furthermore, the disc will not play if it has not been c

36、orrectly finalized. For more information, see the operating instructions for the recording device. A disc recorded in packet write format cannot be played. Note on playback operations of DVDs and VIDEO CDs Some playback operations of DVDs and VIDEO CDs may be intentionally set by software producers.

37、 Since this system plays DVDs and VIDEO CDs according to the disc contents the software producers designed, some playback features may not be available. Also, refer to the instructions supplied with the DVDs or VIDEO CDs. Copyrights This product incorporates copyright protection technology that is p

38、rotected by U.S. patents and other intellectual property rights. Use of this copyright protection technology must be authorized by Macrovision, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision. Reverse engineering or disassembly is prohibited. M

39、usic discs encoded with copyright protection technologies This product is designed to playback discs that conform to the Compact Disc (CD) standard. Recently, various music discs encoded with copyright protection technologies are marketed by some record companies. Please be aware that among those di

40、scs, there are some that do not conform to the CD standard and may not be playable by this product. Cautions when playing a disc that is recorded in Multi Session This system can play Multi Session CDs when an MP3 audio track is contained in the first session. Any subsequent MP3 audio tracks recorde

41、d in later sessions can also be played back. This system can play Multi Session CDs when a JPEG image file is contained in the first session. Any subsequent JPEG image files recorded in later sessions can also be played back. If audio tracks and images in music CD format or video CD format are recor

42、ded in the first session, only the first session will be played back. CX-BK7 5 TABLE OF CONTENTS 1.SERVICING NOTES.6 2.GENERAL.8 3.DISASSEMBLY 3-1.Disassembly Flow .9 3-2.Panel . 10 3-3.Top Panel Block . 10 3-4.Front Panel Assy . 11 3-5.Shield Plate. 11 3-6.MAIN Board . 12 3-7.Rear Cover. 12 3-8.Tun

43、er (FM/AM) . 13 3-9.SP Board. 13 3-10. ACDC Board, Power Transformer. 14 3-11. FRONT AMP/SUR AMP Board . 14 3-12. DVD Mechanism Deck (CDM69DV-DVBU16V) . 15 3-13. Signal Cassette Mechanism . 15 3-14. Optical Pick-Up Section (DVBU16V) . 16 3-15. Optical Traverse Unit (Service Assy, DBU-1) . 16 3-16. S

44、W (1) Board, SW (2) Board, SW (3) Board, SW (4) Board, Bracket (TOP) Assy . 17 3-17. RELAY Board . 17 3-18. Motor (Stocker) Assy (Stocker) (M761) . 18 3-19. Motor (Roller) Assy (Roller) (M781). 18 3-20. Motor (Mode) Assy (Mode) (M771) . 19 3-21. Rubber Roller (Slider) Assy . 19 3-22. Timing Belt (Fr

45、ont/Rear) . 20 3-23. Cam (Gear). 20 3-24. SENSOR Board. 21 4.ASSEMBLY 4-1.How to Install the Cam (Eject Lock). 22 4-2.How to Install the Cam (Gear). 22 4-3.How to Install the Gear (Mode 2). 23 4-4.How to Install the Gear (Mode Cam) . 23 4-5.How to Install the Rotary Encorder (S702), Gear (Stocker Communication) .