Aiwa-CX-JT9-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL COMPACT DISC DECK RECEIVER E Model CX-JT9 Ver 1.1 2004.08 9-877-262-02Sony Corporation 2004H05-1Personal Audio Company 2004.08Published by Sony Engineering Corporation SPECIFICATIONS CX-JT9 is the tuner, amplifier, cassette deck and CD player section in JAX-PK9. Model Name Using Simil

2、ar MechanismNEW CD CD Mechanism TypeCDM74F-K6BD71A Section Base Unit NameBU-K6BD71A Optical Block NameKSM-213DCP Optical Pick-up NameKSS-213D Tape deck Model Name Using Similar MechanismNEW Section Tape Transport Mechanism TypeCWM43RR23 TUNER FM tuning range87.5 MHz to 108 MHz FM usable sensitivity

3、(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 outputFront: Rated: 156 W + 156 W (6 ohms, T.H.D. 1 %, 1 kHz) Reference: 195 W + 195 W (6 ohms,

4、T.H.D. 10 %, 1 kHz) Front and Surround: 320 W + 200 W (Front Speaker: 6 ohms, Surround Speaker: 8 ohms, T.H.D. 10 %, 1 kHz/DIN AUDIO) Total harmonic distortion0.08 % (98 W, 1 kHz, 6 ohms, DIN AUDIO) InputMD (VIDEO): 1.5 V MIC: 1 mV (600 ohms) OutputsFRONT SPEAKER: 6 ohms or more SURROUND SPEAKER: 8

5、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 Deck B: recording/playback x 1, erase x 1 CD PLAYER LaserSemiconductor laser ( = 780 nm) Emission duration: continuous D/A conver

6、ter1 bit dual Signal-to-noise ratio85 dB (1 kHz, 0 dB) Harmonic distortion0.05 % (1 kHz, 0 dB) GENERAL Power requirements120 V/220 V/230 V-240 V AC (Switchable), 50 Hz/60 Hz Power consumption255 W Power consumptionWith ECO mode on: 0.25 W in standby modeWith ECO mode off: 28 W Dimensions (W x H x D)

7、280 x 328 x 446 mm Weight11.2 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 where the unit is to be used. Licensed by BBE Sound, Inc. under USP4638258, 5510752 and 573689

8、7. RadioFans.CN 收音机爱 好者资料库 CX-JT9 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 the soldering iron around 270 C dur- ing repairing.

9、 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 than those specified herein may result in hazardous ra

10、- 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 NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENT

11、S PUB- LISHED BY SONY. 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-JT9 3 TABLE OF CONTENTS 1.SERVICING NOTES.4 2.GENERAL Location of Controls .7 3.DISA

12、SSEMBLY 3-1.Disassembly Flow .9 3-2.Case (SIDE-L/R). 10 3-3.Case (Top) . 10 3-4.Tray Panel. 11 3-5.CD Mechanism Deck (CDM74F-K6BD71A). 11 3-6.Front Panel Section . 12 3-7.Mechanical Deck. 12 3-8.Rear Cabinet Section . 13 3-9.Main Board. 13 3-10. Power Board . 14 3-11. Transformer Board . 14 3-12 Tab

13、le Assy . 15 3-13. Motor (TB) Board . 15 3-14. Motor (LD) Board. 16 3-15. Base Unit (BU-K6BD71A). 16 3-16. Motor Gear Assy (Sled) (M701), BD Board . 17 3-17. Optical Pick-up (KSS-213D) . 17 4.TEST MODE. 18 5.ELECTRICAL ADJUSTMENTS CD Section . 21 6.DIAGRAMS 6-1.Block Diagram CD Section . 22 6-2.Bloc

14、k Diagram TUNER/TAPE/PANEL Section . 23 6-3.Block Diagram AMP/POWER SUPPLY Section . 24 6-4.Note for Printed Wiring Boards and Schematic Diagrams . 25 6-5.Printed Wiring Board BD Board . 26 6-6.Schematic Diagram BD Board . 27 6-7.Printed Wiring Boards CHANGER Section . 28 6-8.Schematic Diagram CHANG

15、ER Section . 29 6-9.Schematic Diagram MAIN Board (1/4) (Suffix-11) . 30 6-10. Schematic Diagram MAIN Board (2/4) (Suffix-11) . 31 6-11. Schematic Diagram MAIN Board (3/4) (Suffix-11) . 32 6-12. Schematic Diagram MAIN Board (4/4) (Suffix-11) . 33 6-13. Printed Wiring Board MAIN Board (Suffix-11) . 34

16、 6-14. Printed Wiring Board MAIN Board (Suffix-13) . 35 6-15. Schematic Diagram MAIN Board (1/4) (Suffix-13) . 36 6-16. Schematic Diagram MAIN Board (2/4) (Suffix-13) . 37 6-17. Schematic Diagram MAIN Board (3/4) (Suffix-13) . 38 6-18. Schematic Diagram MAIN Board (4/4) (Suffix-13) . 39 6-19. Printe

17、d Wiring Board Power Board (E51 model) . 40 6-20. Printed Wiring Board Power Board (MX model) . 41 6-21. Schematic Diagram Power Board (1/2) . 42 6-22. Schematic Diagram Power Board (2/2) . 43 6-23. Printed Wiring Boards CD BUTTON/ HEADPHONE/MICROPHONE Boards . 44 6-24. Schematic Diagram CD BUTTON/

18、HEADPHONE/MICROPHONE Boards . 45 6-25. Printed Wiring Board PANEL Board . 46 6-26. Schematic Diagram PANEL Board . 47 6-27. Printed Wiring Board TRANSFORMER Board (E51 model). 48 6-28. Printed Wiring Board TRANSFORMER Board (MX model). 49 6-29. Schematic Diagram TRANSFORMER Board (E51 model). 50 6-3

19、0. Schematic Diagram TRANSFORMER Board (MX model). 51 6-31. IC Pin Function Description . 55 7.EXPLODED VIEWS 7-1.Case Section . 61 7-2.Front Panel Section-1. 62 7-3.Front Panel Section-2. 63 7-4.Front Panel Section-3. 64 7-5.Front Panel Section-4. 65 7-6.Chassis Section-1 . 66 7-7.Chassis Section-2

20、 . 67 7-8.CD Mechanism Deck Section-1 (CDM74F-K6BD71A) . 68 7-9.CD Mechanism Deck Section-2 (CDM74F-K6BD71A) . 69 7-10. CD Mechanism Deck Section-3 (CDM74F-K6BD71A) . 70 7-11. Base Unit Section (BU-K6BD71A) . 71 8.ELECTRICAL PARTS LIST. 72 Abbreviation E51: Chilean and Peruvian models MX: Mexican mo

21、del RadioFans.CN 收音机爱 好者资料库 4 CX-JT9 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 load, etc. on clothing

22、 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 laser beam on this model

23、 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 Carry out the “S curve

24、check” in “CD section adjustment” and check that the S curve waveforms is output three times. MODEL IDENTIFICATION Back Panel MODELPART No. Chilean and Peruvian models4-245-109-0 Mexican model4-245-109-2 PART No. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free

25、 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 temperature about 40 C higher than ordina

26、ry 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 if the heated tip is applied for too

27、 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 but unleaded solder may also be added

28、 to ordinary solder. D324 CN309 IC303 CN312 MAIN BOARD (Conductor Side) DISCRIMINATION Either type of the MAIN board, Part No. 1-688-080-11 or 1-688- 080-13 is used for Chilean and Peruvian models. Note: For Mexican model, only one type of the MAIN board, Part No. 1- 688-080-13 is used. How to ident

29、ify the type is described below. D324 Suffix-11 Suffix-13a RELEASING THE DISC TRAY LOCK The disc tray lock function for the antitheft of an demonstration disc in the store is equipped. Releasing Procedure : While pressing thexkey, press theZkey for 5 seconds. The message “UNLOCKED” is displayed and

30、the tray is unlocked. Note: When “LOCKED” is displayed, the tray lock is not released by turning power on/off with the POWER key. 5 CX-JT9 HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF. 2Turn the loading gear in the direction of arrow A. 1Remove the case (side-L). A 3Pull-out the disc tray.

31、6 CX-JT9 SERVICE POSITION CD mechanism deck Tape mechanism deck main board (CN312) Connect wire (flat type) (19 core) to main board (CN312) 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 (CN203) 7 C

32、X-JT9 SECTION 2 GENERAL This section is extracted from instruction manual. LOCATION OF CONTROLS 1 DISC CHANGE/DISC SKIP 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 TAPE A/B Selects Tape functio

33、n, and deck A or B. TUNER BAND Selects Tuner function and the radio band. MD (VIDEO) Selects the function of external equipment connected to MD (VIDEO) jacks. CD Selects CD function. 4 TREBLE/MIDDLE Enhances high or middle frequency sound. 5 CD SYNC Starts Automatic CD dubbing. REC PAUSE/START Start

34、s recording. 6 PHONES jack Plug in here an optional headphones set with a mini stereo plug (3.5 mm). Speaker output is canceled. MIC jack Connects the microphone here. MIC MIXING Adjusts the microphone volume. Main unit: front Refer to the pages indicated in parentheses for details. 7 DISC DIRECT PL

35、AY 1-3 Selects a disc. 8 zOPEN/CLOSE Opens or closes the disc compartment. 9 HEAVY, VOCAL, SALSA, TECHNO, HIP HOP, MANUAL Activates a graphic equalization curve. 0 MODE Selects various modes (Play mode and Tape reverse, etc.) when used in combination with ENTER and MULTI JOG. ENTER Fixes the modes a

36、nd the time (Play mode and Tape reverse, etc.) when used in combination with MODE and MULTI JOG. ! MULTI JOG CD: skips to a previous or a succeeding track. Tuner: selects a preset station. Clock and Timer: sets the time. Selects the mode and the time when used in combination with MODE and ENTER. VOL

37、UME Adjusts the volume. # BASS Adjusts low frequency sound. SURROUND Switches surround on and off. i-Bass Produces rich and clear low frequency sound. $ DISPLAY Displays the time and the remaining time for CD. When the unit is off, press DISPLAY to switch between DEMO, Clock and ECO display modes. A

38、LBUM k/i Selects a previous album or a succeeding album with MP3-CDs. % rTUNING DOWN, tTUNING UP (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 down or up within the band. aPAUSE CD and Tapes: pause

39、s playback. dDIRECTION CD and Tapes: starts playback. sSTOP CD and Tapes: stops playback. 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 MD (VIDEO) jacks Accepts analog sound signals from external eq

40、uipment. Connect using an optional 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 MD (VIDEO). Tip: To change the displayed name for this function, turn the unit on, then hold down MD (VIDEO) and press POWER on the unit. Repeat the procedure to select “MD” or “VIDEO”. 3 SURROUND SPEAKER terminals Connect for each speaker the blue cord to the 0terminal and the black cord to the 9 terminal. FRONT SPEAKER terminals Connect for