Aiwa-CX-JS5-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL COMPACT DISC DECK RECEIVER US Model Canadian Model CX-JS5 Ver. 1.2 2005.05 9-877-269-03Sony Corporation 2005E05-1Personal Audio Group 2005.05Published by Sony Engineering Corporation SPECIFICATIONS CX-JS5 is the amplifier, CD player, tape deck and tuner section in JAX-S5. Model Name U

2、sing Similar MechanismCX-JN5 CD CD Mechanism TypeCDM74S-K6BD71A Base Unit NameBU-K6BD71A Section Optical Block NameKSM-213DCP Optical Pick-up NameKSS-213D Tape deck Model Name Using Similar MechanismCX-JN5 Section Tape Transport Mechanism TypeCWM43FF13 TUNER FM tuning range87.5 MHz to 108 MHz FM usa

3、ble sensitivity (IHF)13.2 dBf FM antenna terminal75 ohms (unbalanced) AM tuning range530 kHz to 1710 kHz (10 kHz step) 531 kHz to 1710 kHz (9 kHz step) AM usable sensitivity350 V/m AM antennaLoop antenna AMPLIFIER Power output120 W + 120 W (40 Hz - 20 kHz, THD less than 1 %, 6 ohms) 150 W + 150 W (1

4、 kHz, THD less than 10 %, 6 ohms) Total harmonic distortion0.08 % (60 W, 1 kHz, 6 ohms) InputVIDEO/AUX: 400 mV OutputsSPEAKER: 6 ohms or more PHONES: 32 ohms or more CASSETTE DECK Track format4 tracks, 2 channels stereo Frequency response50 Hz 8 kHz Recording systemAC bias HeadsDeck A: playback x 1

5、Deck B: recording/playback x 1, erase x 1 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 requirements120 V AC, 60 Hz Power consumption120 W Power consu

6、mptionWith ECO mode on: 0.25 W in standby modeWith ECO mode off: 25 W Dimensions (W x H x D)280 x 330 x 392.5 mm (111/8 x 13 x 15 1/2 in.) Weight8.7 kg (19 lbs 3 oz) Specifications and external appearance are subject to change without notice. COPYRIGHT Check copyright laws relevant to recordings fro

7、m discs, tuner or tape for the country where 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-JS5 2 Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor m

8、ay be dam- aged by heat. Flexible Circuit Board 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 unsolder

9、ing. CAUTION Use of controls or adjustments 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 CR

10、ITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS 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. SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing

11、safety check before releasing the set to the customer: Check the antenna 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

12、 metal parts to any exposed metal part having a return to chassis, must not 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 instru

13、ments. 2.A battery-operated AC milliammeter. The Data Precision 245 digital 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

14、scale. The Simpson 250 and Sanwa SH-63Trd are ex- amples of a passive VOM 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

15、 on Set Earth Ground ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE

16、 MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR 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 to their particular size) :

17、 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. Soldering irons using a temperatur

18、e 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 not to let solder bridges oc

19、- 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. RadioFans.CN 收音机爱 好者资料库 CX-JS5 3 TABLE OF CONTENTS 1.SERVICING NOTES.4 2.GENERAL Location of Controls .7 3.DISASSEMBLY 3-1.Disassembly Flow .9 3

20、-2.Case (SIDE-L/R). 10 3-3.Case (Top) . 10 3-4.Tray Panel. 11 3-5.CD Mechanism Deck (CDM74S-K6BD71A). 11 3-6.Front Panel Section . 12 3-7.Mechanical Deck (CWM43FF13) . 12 3-8.Rear Cabinet Section . 13 3-9.PT Board, MAIN Board. 13 3-10. Table Assy . 14 3-11. Motor (TB) Board . 14 3-12. Motor (LD) Boa

21、rd. 15 3-13. Base Unit (BU-K6BD71A). 15 3-14. Motor Gear Assy (Sled) (M701), BD Board . 16 3-15. Optical Pick-up (KSS-213D). 16 4.TEST MODE. 17 5.ELECTRICAL ADJUSTMENTS CD Section . 19 6.DIAGRAMS 6-1.Block Diagram CD Section . 20 6-2.Block Diagram TUNER/TAPE/PANEL Section . 21 6-3.Block Diagram AMP/

22、POWER SUPPLY Section . 22 6-4.Note for Printed Wiring Boards and Schematic Diagrams . 23 6-5.Printed Wiring Board BD Section . 24 6-6.Schematic Diagram BD Section . 25 6-7.Printed Wiring Boards CHANGER Section . 26 6-8.Schematic Diagram CHANGER Section . 27 6-9.Schematic Diagram MAIN Section (1/4) .

23、 28 6-10. Schematic Diagram MAIN Section (2/4) . 29 6-11. Schematic Diagram MAIN Section (3/4) . 30 6-12. Schematic Diagram MAIN Section (4/4) . 31 6-13. Printed Wiring Board MAIN Section . 32 6-14. Printed Wiring Board HP Section . 33 6-15. Schematic Diagram HP Section . 33 6-16. Printed Wiring Boa

24、rd PANEL Section . 34 6-17. Schematic Diagram PANEL Section . 35 6-18. Printed Wiring Boards KEY Section . 36 6-19. Schematic Diagram KEY Section . 37 6-20. Printed Wiring Board PT Section . 38 6-21. Schematic Diagram PT Section . 39 6-22. IC Pin Function Description . 43 7.EXPLODED VIEWS 7-1.Case S

25、ection . 45 7-2.Front Panel Section-1. 46 7-3.Front Panel Section-2. 47 7-4.Front Panel Section-3. 48 7-5.Front Panel Section-4. 49 7-6.Chassis Section . 50 7-7.CD Mechanism Deck Section-1 (CDM74S-K6BD71A) . 51 7-8.CD Mechanism Deck Section-2 (CDM74S-K6BD71A) . 52 7-9.CD Mechanism Deck Section-3 (CD

26、M74S-K6BD71A) . 53 7-10. Base Unit Section (BU-K6BD71A) . 54 8.ELECTRICAL PARTS LIST. 55 RadioFans.CN 收音机爱 好者资料库 4 CX-JS5 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 t

27、he 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 board is easily damaged and should b

28、e 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 from more than 30 cm away from the

29、 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 Back Panel MODELPART No. US model4-245-154-1 Canadian model4-245-280-6 PART No. 5 CX-JS5 HOW TO OPEN

30、 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 6 CX-JS5 SERVICE POSITION CD mechanism deck Tape mechanism deck main board (CN691) Connect wire (flat type) (19 core) to main board (CN691) and BD boa

31、rd (CN710). BD board (CN710) Connect wire (flat type) (13 core) to panel board (CN601) and mechanical deck. panel board (CN601) main board (CN301) 7 CX-JS5 SECTION 2 GENERAL This section is extracted from instruction manual. LOCATION OF CONTROLS 1 DISC CHANGE Rotates the CD trays. 2 POWER 6STANDBY/O

32、N 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/ Programed playback, etc.) when used in combination with ENTER and MULTI JOG. 4 ENTER Fixes the modes and the time (ECO, Repeat/Shuffle/ P

33、rogramed 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 off: activates or deactivates DEMO. CD and Tape: starts playback. Tuner: tunes into a preset station. sSTOP/CLEAR CD and Tape:

34、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 or rewinds the tape. Tuner: manually tunes down or up within the band. aPAUSE/SET CD and Tape: pauses playback. Tuner: stores the

35、 received station in to preset. % BASS Emphasizes low frequency sound. i-Bass Produces rich and clear low frequency sound. & DISPLAY Displays the time and the remaining time for CD. ALBUM k, i Selects a previous album or a succeeding album with MP3-CDs. Main unit: front Refer to the pages indicated

36、in parentheses for details. 5 MULTI JOG When used in combination with ENTER and MULTI JOG, CD: selects a track and Repeat/Shuffle/Programed playback. Tuner: selects a preset station. Tape: specifies tape length. Clock and Timer: sets the time. i-Bass: selects a frequency range. Spectrum analyzer, EC

37、O 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 Selects a disc. 9 zOPEN/CLOSE Opens or closes the disc

38、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 Receives a signal from the remote. VOLUME Adjusts the volum

39、e. 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 optional connecting cable with RCA phono plugs (red plug to R

40、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 press POWER on the unit. Repeat the procedure to select

41、VIDEO, AUX or TV. 3 # SPEAKER terminals Connect the speaker cord of the supplied front speakers here. 4 AC power cord 8 CX-JS5 Buttons with the same or similar names with the main unit basically have the same function. 1 POWER 2 1-0/10, +10 CD: selects a CD track of the specified number. Tuner: tune

42、s 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 Programed Edit Recording mode when pressed in stop mode. BAND Selects 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 the time. 4 ALBUM M, N Selects a previous album or a su