Aiwa-CX-JS3-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL TUNER FM tuning range87.5 MHz to 108 MHz FM usable sensitivity (IHF)16.8 dBf FM antenna terminal75 ohms (unbalanced) AM tuning range531 kHz to 1602 kHz AM usable sensitivity350 V/m AM antennaLoop antenna AMPLIFIER Power outputRated: 32 W + 32 W (6 ohms, T.H.D. 1 %, 1 kHz/DIN 45500) Re

2、ference: 40 W + 40 W (6 ohms, T.H.D. 10 %, 1 kHz/DIN 45324) MUSIC POWER: 100 W +100 W Total harmonic distortion0.08 % (16 W, 1 kHz, 6 ohms, DIN AUDIO) InputVIDEO/AUX: 400 mV OutputsSPEAKER: 6 ohms or more PHONES: 32 ohms or more CASSETTE DECK Track format4 tracks, 2 channels stereo Frequency respons

3、e50 Hz 8 kHz Recording systemAC bias HeadsDeck A: playback x 1 Deck B: recording/playback x 1, erase x 1 Model Name Using Similar MechanismCX-JN3 CD Mechanism TypeCDM74S-K6BD72 CD Base Unit NameBU-K6BD72 Section Optical Block NameKSM-213DCP Optical Pick-up NameKSS-213D Tape deck Model Name Using Sim

4、ilar MechanismCX-JN3 Section Tape Transport Mechanism TypeCWM43FF13 COMPACT DISC DECK RECEIVER AEP Model UK Model CX-JS3 Ver 1.2 2004.08 9-877-297-03Sony Corporation 2004H05-1Personel Audio Company 2004.08Published by Sony Engineering Corporation SPECIFICATIONS CX-JS3 is the amplifier, CD player, ta

5、pe deck and tuner section in JAX-S3. CD PLAYER LaserSemiconductor laser ( = 780 nm) Emission duration: continuous D/A converter1 bit dual Signal-to-noise ratio85 dB (1 kHz, 0 dB) Harmonic distortion0.05 % (1 kHz, 0 dB) GENERAL Power requirements230 V AC, 50/60 Hz Power consumption65 W Power consumpt

6、ionWith ECO mode on: 0.25 W in standby modeWith ECO mode off: 15 W Dimensions (W x H x D)280 x 330 x 392.5 mm Weight6.6 kg Specifications and external appearance are subject to change without notice. COPYRIGHT Check copyright laws relevant to recordings from discs, tuner or tape for the country wher

7、e the unit is to be used. Licensed by BBE Sound, Inc. under USP4638258, 5510752 and 5736897. RadioFans.CN 收音机爱 好者资料库 CX-JS3 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 B

8、oard Repairing Keep the temperature 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

9、 or performance of procedures 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 COM

10、PONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. The following caution label is located inside the unit. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. UNLEADE

11、D 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 to their particular size) : LEAD FREE MARK Unleaded solder has the following chara

12、cteristics. 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. Soldering irons using a temperature regulator should be set to about 350 C. Caution: The

13、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 not to let solder bridges oc- cur such as on IC pins, etc. Usable with ordinary sol

14、der It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. RadioFans.CN 收音机爱 好者资料库 CX-JS3 3 TABLE OF CONTENTS 1.SERVICING NOTES.4 2.GENERAL Location of Controls .6 3.DISASSEMBLY 3-1.Disassembly Flow .8 3-2.Case (SIDE-L/R).9 3-3.Case (Top) .9 3-4.Tray Panel.

15、10 3-5.CD Mechanism Deck (CDM74S-K6BD72). 10 3-6.Front Panel Section . 11 3-7.Mechanical Deck (CWM43FF13) . 11 3-8.Rear Cabinet Section . 12 3-9.PT Board, MAIN Board. 12 3-10. Table Assy . 13 3-11. Motor (TB) Board . 13 3-12. Motor (LD) Board. 14 3-13. Base Unit (BU-K6BD72). 14 3-14. Motor Gear Assy

16、 (Sled) (M701), BD Board . 15 3-15. Optical Pick-up (KSS-213D) . 15 4.TEST MODE. 16 5.ELECTRICAL ADJUSTMENTS CD Section . 17 6.DIAGRAMS 6-1.Block Diagram CD Section . 18 6-2.Block Diagram TUNER/TAPE/PANEL Section . 19 6-3.Block Diagram AMP/POWER SUPPLY Section . 20 6-4.Note for Printed Wiring Boards

17、 and Schematic Diagrams . 21 6-5.Printed Wiring Board BD Section . 22 6-6.Schematic Diagram BD Section . 23 6-7.Printed Wiring Boards CHANGER Section . 24 6-8.Schematic Diagram CHANGER Section . 25 6-9.Schematic Diagram MAIN Section (1/4) . 26 6-10. Schematic Diagram MAIN Section (2/4) . 27 6-11. Sc

18、hematic Diagram MAIN Section (3/4) . 28 6-12. Schematic Diagram MAIN Section (4/4) . 29 6-13. Printed Wiring Board MAIN Section . 30 6-14. Printed Wiring Board HP Section . 31 6-15. Schematic Diagram HP Section . 31 6-16. Printed Wiring Board PANEL Section . 32 6-17. Schematic Diagram PANEL Section

19、. 33 6-18. Printed Wiring Boards KEY Section . 34 6-19. Schematic Diagram KEY Section . 35 6-20. Printed Wiring Board PT Section . 36 6-21. Schematic Diagram PT Section . 37 6-22. IC Pin Function Description . 41 7.EXPLODED VIEWS 7-1.Case Section . 43 7-2.Front Panel Section-1. 44 7-3.Front Panel Se

20、ction-2. 45 7-4.Front Panel Section-3. 46 7-5.Front Panel Section-4. 47 7-6.Chassis Section . 48 7-7.CD Mechanism Deck Section-1 (CDM74S-K6BD72) . 49 7-8.CD Mechanism Deck Section-2 (CDM74S-K6BD72) . 50 7-9.CD Mechanism Deck Section-3 (CDM74S-K6BD72) . 51 7-10. Base Unit Section (BU-K6BD72) . 52 8.E

21、LECTRICAL PARTS LIST. 53 RadioFans.CN 收音机爱 好者资料库 4 CX-JS3 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 electro- static break-down because of the potential difference generated by the charged electrostatic l

22、oad, 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 board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The las

23、er 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 from more than 30 cm away from the objective lens. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Ca

24、rry out the “S curve check” in “CD section adjustment” and check that the S curve waveforms is output three times. HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF. 3Pull-out the disc tray. 1Remove the case (side-L). 2Turn the loading gear in the direction of arrow A. A 5 CX-JS3 SERVICE POSITIO

25、N CD mechanism deck Tape mechanism deck main board (CN691) Connect wire (flat type) (19 core) to main board (CN691) and BD board (CN710). BD board (CN710) Connect wire (flat type) (13 core) to panel board (CN601) and mechanical deck. panel board (CN601) main board (CN301) 6 CX-JS3 SECTION 2 GENERAL

26、This section is extracted from instruction manual. LOCATION OF CONTROLS 1 DISC CHANGE Rotates the CD trays. 2 POWER 6STANDBY/ON Switches the unit on and off (standby). The red indicator flashes when receiving a signal from the remote. 3 MODE Selects various modes (ECO and Repeat/Shuffle/ Programmed

27、playback, etc.) when used in combination with ENTER and MULTI JOG. 4 ENTER Fixes the modes and the time (ECO, Repeat/Shuffle/ Programmed playback, clock, and timer, etc.) when used in combination with ENTER and MULTI JOG. # TREBLE Enhances high frequency sound. $ cPLAY/PRESET When the unit is turned

28、 off: activates or deactivates DEMO. CD and Tape: starts playback. Tuner: tunes into a preset station. sSTOP/CLEAR CD and Tape: stops playback. Tuner: clears a station preset. fTUNING DOWN, gTUNING UP CD: searches a track in fast forward or fast reverse playback when held down. Tape: fast forwards o

29、r rewinds the tape. Tuner: manually tunes down or up within the band. aPAUSE/SET CD and Tape: pauses playback. Tuner: stores the received station in to preset. % BASS Emphasizes low frequency sound. i-Bass Produces rich and clear low frequency sound. & PTY Displays a program type for RDS (Radio Data

30、 System) Main unit: front Refer to the pages indicated in parentheses for details. 5 MULTI JOG When used in combination with ENTER and MULTI JOG, CD: selects a track and Repeat/Shuffle/Programmed playback. Tuner: selects a preset station. Tape: specifies tape length. Clock and Timer: sets the time.

31、i-Bass: selects a frequency range. Spectrum analyzer, ECO and Dimmer: selects the mode. 6 PHONES jack Plug in here an optional headphones set with a mini stereo plug (3.5 mm). Speaker output is canceled. 7 SYNC DUB Starts dubbing a whole tape. wREC/REC MUTING Starts recording. 8 DISC DIRECT PLAY 1-3

32、 Selects a disc. 9 zOPEN/CLOSE Opens or closes the disc compartment. 0 TAPE A/B Selects Tape function, and deck A or B. TUNER/BAND Selects Tuner function and the radio band. VIDEO/AUX Selects the function of external equipment connected to VIDEO/AUX jacks. CD Selects CD function. ! Remote sensor Rec

33、eives a signal from the remote. VOLUME Adjusts the volume. Main unit: rear Refer to the pages indicated in parentheses for details. 1 AM LOOP, FM 75 terminals Plug in the supplied AM and FM antennas here. 2 VIDEO/AUX jacks Accepts analog sound signals from external equipment. Connect using an option

34、al connecting cable with RCA phono plugs (red plug to R jack, white plug to L jack). Refer also to the operating instructions of your equipment. To switch function to external input, press VIDEO/AUX. Tip: To change the displayed name for this function, turn the unit on, then hold down VIDEO/AUX and

35、press POWER on the unit. Repeat the procedure to select VIDEO, AUX or TV. 3 # SPEAKER terminals Connect the speaker cord of the supplied front speakers here. 4 AC power cord 7 CX-JS3 Buttons with the same or similar names with the main unit basically have the same function. 1 POWER 2 1-0/10, +10 CD:

36、 selects a CD track of the specified number. Tuner: tunes in to the station with the specified preset number. The numbered buttons take on these functions below when pressed with SHIFT held down: EDIT Enters AI Edit Recording or Programmed Edit Recording mode when pressed in stop mode. BAND Selects

37、Tuner function and the radio band. TAPE A/B SPECTRUM Changes the spectrum analyzer display. TUNER MODE Switches between stereo or monaural FM reception. 3 r, t CD: selects a track. Tuner: selects a preset station. Tape: specifies tape length. BASS and TREBLE: adjusts the level. Clock and Timer: sets

38、 the time. 4 PLAY MODE Selects Shuffle or Programmed playback in CD function. REPEAT Enters CD repeat playback mode. ENTER 5 CLOCK/TIMER/SET Enters timer setting mode. CLOCK/TIMER/SELECT Selects timer playback, timer recording or timer off. 6 DISPLAY 7 SHIFT Hold down when pressing a numbered button

39、 to change its function to that printed above the number. e.g.) Press SHIFT+BAND on the remote indicates Hold down SHIFT and press 2 (BAND). Doing so makes you be able to select Tuner function and the radio band. 8 FUNCTION Switches the active function among CD, TAPE, TUNER and VIDEO (AUX or TV). 9

40、DISC SKIP Select a disc. 0 c/d When the unit is turned off: activates or deactivates DEMO. CD and Tape: starts playback. s CD and Tape: stops playback. f,g CD: searches a track in fast forward or fast reverse playback when held down. Tape: fast forwards or rewinds the tape. Tuner: manually tunes dow

41、n or up within the band. a CD and Tape: pauses playback. ! SLEEP Switches the sleep-timer on/off and selects the duration. VOLUME (+, -) Adjusts the volume. # SOUND Selects BASS or TREBLE setting mode CLEAR Clears a track of the CD programmed playback and a Radio preset station. Note The buttons not

42、 explained above (ALBUMN,Mand KARAOKE) do not operate for this unit. Remote control Refer to the pages indicated in parentheses for details. Setting the clock Use the remote. 1Press CLOCK/TIMER/SET. Go to step 3 when the time appears and the hour flashes. 2Press r or t repeatedly until CLOCK SET appears in the display and then press ENTER. 3Press r or t repeatedly to set the hour and then press ENTER. 4Press r or t repeatedly to set the minute and then press ENTER. The time display stops flashing and the clock starts from 00 seconds. MULTI JOG is also available in place of r or