Aiwa-CX-JN55-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL COMPACT DISC DECK RECEIVER AEP Model UK Model CX-JN55 Ver 1.1 2004.08 SPECIFICATIONS CX-JN55 is the amplifier, CD player, tape deck and tuner section in JAX-N55. Continued on next page 9-877-791-02 2004H05-1 2004.08 Sony Corporation Personal Audio Company Published by Sony Engineering

2、 Corporation Amplifier section DIN power output (rated): 52 + 52 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 65 + 65 watts (6 ohms at 1 kHz, 10% THD) Music power output (reference): 130 + 130 watts (6 ohms at 1 kHz, 10% THD) Inputs VIDEO/MD IN (phono jacks): voltage 450/250

3、 mV, impedance 47 kilohms Outputs PHONES (stereo mini jack): accepts headphones of 8 ohms or more SPEAKER:accepts impedance of 6 to 16 ohms Tuner section FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range Russian models65.0 74.0 MHz (There is no stereo effect. 10-kHz step) 87.5 108

4、.0 MHz (50-kHz step) Other models87.5 108.0 MHz (50-kHz step) AntennaFM lead antenna Antenna terminals75 ohms unbalanced Intermediate frequency10.7 MHz 531 1,602 kHz (with the tuning interval set at 9 kHz) AM tuner section Tuning range AntennaAM loop antenna Antenna terminalsExternal antenna termina

5、l Intermediate frequency450 kHz CD player section SystemCompact disc and digital audio system LaserSemiconductor laser (=780 nm) Emission duration: continuous Frequency response2 Hz 20 kHz (0.5 dB) Signal-to-noise ratioMore than 90 dB Dynamic rangeMore than 90 dB Tape deck section Recording system4-

6、track 2-channel, stereo Frequency response50 13,000 Hz (3 dB), using Sony TYPE I cassettes Model Name Using Similar MechanismCX-JN77 CD CD Mechanism TypeCDM74-F1BD81 Section Base Unit NameBU-F1BD81A Optical Pick-up NameKSM-215DCP Tape deck Model Name Using Similar MechanismCX-JN30 Section Tape Trans

7、port Mechanism TypeCWM43FF13 RadioFans.CN 收音机爱 好者资料库 CX-JN55 2 This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. General Power requirements230 V AC, 50/60 Hz Dimensions (w/h/d) incl. projecting parts and controls Amplifier/Tun

8、er/Tape/CD section: Approx. 280 325 425 mm Power consumption110 watts 0.25 watts (at the Power Saving Mode) Design and specifications are subject to change without notice. Mass Approx. 9.9 kg Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of

9、 a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during 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 so

10、ldering or unsoldering. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains n

11、o 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 ordinary solder. Ordinary soldering irons can be

12、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 long, so be careful! Strong viscosity Unle

13、aded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur 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. SAFETY-RELATED COMPONENT

14、 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 SUPPLEMENTS PUBLISHED BY SONY. RadioFans.CN 收音机爱 好者资料库

15、 CX-JN55 3 TABLE OF CONTENTS 1.SERVICING NOTES.4 2.GENERAL Location of Controls.7 3.DISASSEMBLY 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 (CDM74-F1BD81) . 11 3-6.Front Panel Block . 12 3-7.Back Panel Section . 12 3-8.MAIN Board. 13

16、3-9.Tape Mechanism Deck (CWM43FF13) . 13 3-10. Table Assy . 14 3-11. MOTOR (TB) Board . 14 3-12. MOTOR (LD) Board . 15 3-13. Base Unit (BU-F1BD81A) . 15 3-14. CD Board. 16 4.TEST MODE. 17 5.ELECTRICAL ADJUSTMENTS CD Section . 21 6.DIAGRAMS 6-1.Block Diagram SERVO Section . 22 6-2.Block Diagram MAIN

17、Section . 23 6-3.Block Diagram PANEL/POWER SUPPLY Section . 24 6-4.Note for Printed Wiring Boards and Schematic Diagrams. 25 6-5.Printed Wiring Board CD Board . 26 6-6.Schematic Diagram CD Board . 27 6-7.Printed Wiring Boards CHANGER Section . 28 6-8.Schematic Diagram CHANGER Section . 29 6-9.Printe

18、d Wiring Boards CDMP3 CONNECT/TRANSLATION Boards . 30 6-10. Schematic Diagram CDMP3 CONNECT/TRANSLATION Boards . 31 6-11. Schematic Diagram MAIN Section (1/4) . 32 6-12. Schematic Diagram MAIN Section (2/4) . 33 6-13. Schematic Diagram MAIN Section (3/4) . 34 6-14. Schematic Diagram MAIN Section (4/

19、4) . 35 6-15. Printed Wiring Boards MAIN Section . 36 6-16. Printed Wiring Board PANEL Section . 37 6-17. Schematic Diagram PANEL Section (1/2) . 38 6-18. Schematic Diagram PANEL Section (2/2) . 39 6-19. Printed Wiring Board POWER AMP Section . 40 6-20. Schematic Diagram POWER AMP Section . 41 6-21.

20、 Printed Wiring Boards TRANS Section . 42 6-22. Schematic Diagram TRANS Section . 43 7.EXPLODED VIEWS 7-1.Case Section . 53 7-2.Tape Mechanism Deck Section (CWM43FF13) . 54 7-3.Cassette Box Section . 55 7-4.Front Panel Section . 56 7-5.Back Panel Section . 57 7-6.Chassis Section. 58 7-7.CD Mechanism

21、 Deck Section-1 (CDM74-F1BD81) . 59 7-8.CD Mechanism Deck Section-2 (CDM74-F1BD81) . 60 7-9.CD Mechanism Deck Section-3 (CDM74-F1BD81) . 61 7-10. Base Unit Section (BU-F1BD81A) . 62 8.ELECTRICAL PARTS LIST. 63 RadioFans.CN 收音机爱 好者资料库 4 CX-JN55 SECTION 1 SERVICING NOTES The laser diode in the optical

22、 pick-up block may suffer electrostatic 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

23、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 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 la

24、ser diode emission, observe 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. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 5

25、CX-JN55 SERVICE POSITION CD MECHANISM DECK HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF. 1Remove the case (side-L). 2Turn the loading gear in the direction of arrow A. A 3Pull-out the disc tray. CD mechanism deck stand CDMP3 CONNECT board 6 CX-JN55 AMP BOARD FRONT PANEL SECTION MAIN board P

26、ANEL board front panel section tape mechanism deck SUB TRANS board TRANS board POWER board MAIN board front panel section 7 CX-JN55 SECTION 2 GENERAL LOCATION OF CONTROLS This section is extracted from instruction manual. ALBUM + wl ALBUM wl BASS control 5 CD qh CD SYNC qs Deck A 9 Deck B wk DISC 1

27、3 wd DISC SKIP/EX-CHANGE wf Disc tray ws DISPLAY qg Display window 4 ENTER 2 i-Bass qd MIDDLE control 5 Operation Dial (AMS/TUNING) qf P FILE 6 PHONES jack qa PLAY MODE w; PRESET EQ 3 REC PAUSE/START 8 Remote sensor 7 SURROUND wa TAPE A/B qk TREBLE control 5 TUNER/BAND qj TUNING MODE w; VIDEO/MD ql

28、VOLUME control wh ?/1 (power) 1 Z PUSH (deck A) (eject) 0 Z (eject) wg PUSH Z (deck B) (eject) wj m (rewind) wl x (stop) wl X (pause) wl M (fast forward) wl ALPHABETICAL ORDER A NO Z BUTTON DESCRIPTIONS + + + + + + + + ZZ wd wf wg wh wk 4qjqhqk qlw;waws wj 1 qg qf qd qs 0 qa 9 2 wl8 356 7 Main unit

29、H (play) wl 8 CX-JN55 Use buttons on the remote for the operation. 1Press ?/1 to turn on the system. 2Press CLOCK/TIMER SET. 3Press . or repeatedly to set the hour. 4Press ENTER. 5Press . or repeatedly to set the minute. 6Press ENTER. The clock starts working. To adjust the clock 1Press CLOCK/TIMER

30、SET. 2Press . or repeatedly to select “CLOCK SET”, then press ENTER. 3Do the same procedures as step 3 to 6 above. Notes The clock settings are canceled when you disconnect the power cord or if a power failure occurs. You cannot set the clock in Power Saving Mode. Setting the clock Remote control AL

31、BUM + qa ALBUM qd CD qk CLEAR qg CLOCK/TIMER SELECT 2 CLOCK/TIMER SET 3 DISC SKIP 0 DISPLAY wa ENTER 9 EQ qf FM MODE 4 FUNCTION 6 PLAY MODE w; REPEAT 4 SLEEP ws TAPE qj TUNER BAND 5 TUNER MEMORY ql TUNING MODE w; VOLUME +/ qs ?/1 (power) 1 m/M (rewind/fast forward) 7 N (play) 8 X (pause) 8 x (stop) 8 /+ (tuning) qh ./ (go back/go forward) qh ALPHABETICAL ORDER A EF Z BUTTON DESCRIPTIONS 4 5 6 7 8 9 q; ws1 qd qg qf wa w; ql qk qj qh qa qs 3 2