Aiwa-CXJN77-cs-sm 电路图 维修手册.pdf

SERVICE MANUAL Chilean, Peruvian, Mexican models DIN power output (rated): 100 + 100 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 125 + 125 watts (6 ohms at 1 kHz, 10% THD) Music power output (reference): 250 + 250 watts (6 ohms at 1 kHz, 10% THD) AEP, UK, CIS models The following measured at AC 120, 127, 220, 240 V 50/60 Hz DIN power output (rated): 144 + 144 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 180 + 180 watts (6 ohms at 1 kHz, 10% THD) Inputs VIDEO/MD IN (phono jacks): voltage 450/250 mV, impedance 47 kilohms Amplifier section Outputs PHONES (stereo mini jack): accepts headphones of 8 ohms or more SPEAKER:accepts impedance of 6 to 16 ohms 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-track 2-channel, stereo Frequency response50 13,000 Hz (3 dB), using Sony TYPE I cassettes 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) 87.5 108.0 MHz (50-kHz step) Other models87.5 108.0 MHz (50-kHz step) AntennaFM lead antenna Antenna terminals75 ohms unbalanced Intermediate frequency10.7 MHz AM tuner section Tuning range Pan-American models:530 1,710 kHz (with the tuning interval set at 10 kHz) 531 1,710 kHz (with the tuning interval set at 9 kHz) European and Russian models: 531 1,602 kHz (with the tuning interval set at 9 kHz) AntennaAM loop antenna Antenna terminalsExternal antenna terminal Intermediate frequency450 kHz COMPACT DISC DECK RECEIVER AEP Model UK Model E Model CX-JN77 Ver 1.0 2004.04 9-877-745-01Sony Corporation 2004D05-1Home Audio Company 2004.04Published by Sony Engineering Corporation SPECIFICATIONS CX-JN77 is the amplifier, CD player, tape deck and tuner section in JAX-N77/PK77. Model Name Using Similar MechanismNEW CD CD Mechanism TypeCDM74-F1BD81 Section Base Unit NameBU-F1BD81A Optical Pick-up Block NameKSM-215DCP Tape deck Model Name Using Similar MechanismNEW Section Tape Transport Mechanism TypeCWM43FR34 Continued on next page RadioFans.CN 收音机爱 好者资料库 CX-JN77 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. 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- 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 SUPPLEMENTS PUB- LISHED BY SONY. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. 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) : 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 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 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 to ordinary solder. General Power requirements European and Russian models: 230 V AC, 50/60 Hz Mexican models:127 V AC, 60 Hz Other models:120 V, 220 V or 230 240 V AC, 50/60 Hz Adjustable with voltage selector Power consumption European and Russian models: 180 watts 0.25 watts (at the Power Saving Mode) Other models:170 watts Dimensions (w/h/d) incl. projecting parts and controls Amplifier/Tuner/Tape/CD section: Approx. 280 325 425 mm Mass Approx. 9.9 kg Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 CX-JN77 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 3-9.Tape Mechanism Deck (CWM43FR34). 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 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.Printed 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 (4/4) . 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 (AEP, UK, CIS only). 40 6-20. Schematic Diagram POWER AMP Section (AEP, UK, CIS only). 41 6-21. Printed Wiring Board POWER AMP Section (E51, MX only) . 42 6-22. Schematic Diagram POWER AMP Section (E51, MX only) . 43 6-23. Printed Wiring Boards TRANS Section (AEP, UK, CIS only). 44 6-24. Schematic Diagram TRANS Section (AEP, UK, CIS only). 45 6-25. Printed Wiring Boards TRANS Section (E51, MX only) . 46 6-26. Schematic Diagram TRANS Section (E51, MX only) . 47 7.EXPLODED VIEWS 7-1.Case Section . 58 7-2.Tape Mechanism Deck Section (CWM43FR34). 59 7-3.Cassette Box Section . 60 7-4.Front Panel Section . 61 7-5.Back Panel Section. 62 7-6.Chassis Section . 63 7-7.CD Mechanism Deck Section-1 (CDM74-F1BD81) . 64 7-8.CD Mechanism Deck Section-2 (CDM74-F1BD81) . 65 7-9.CD Mechanism Deck Section-3 (CDM74-F1BD81) . 66 7-10. Base Unit Section (BU-F1BD81A) . 67 8.ELECTRICAL PARTS LIST. 68 Abbreviation E51: Chilean and Peruvian models MX: Mexican model RadioFans.CN 收音机爱 好者资料库 4 CX-JN77 + + RLRL Rear View PART No. 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 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 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 check” in “CD section adjustment” and check that the S curve waveforms is output three times. MODEL IDENTIFICATION MODELPART No. AEP, UK models4-253-949-0 CIS model4-253-950-0 Chilean and Peruvian models4-253-951-0 Mexican model4-255-500-0 5 CX-JN77 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-JN77 AMP BOARD FRONT PANEL SECTION MAIN board PANEL board front panel section tape mechanism deck SUB TRANS board TRANS board AMP board MAIN board front panel section 7 CX-JN77 Main unit ALBUM + wl ALBUM wl BASS control 5 CD qh CD SYNC qs Deck A 9 Deck B wk DISC 1 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 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 hH(play) 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 SECTION 2 GENERAL This section is extracted from instruction manual. LOCATION OF CONTROLS 8 CX-JN77 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 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 ALBUM + 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 CX-JN77 9 This set can be disassembled in the order shown below. 3-1.DISASSEMBLY FLOW SECTION 3 DISASSEMBLY SET 3-2.CASE (SIDE-L/R) (Page 10) 3-3.CASE (TOP) (Page 10) 3-4.TRAY PANEL (Page 11) 3-6.FRONT PANEL BLOCK (Page 12) 3-7.BACK PANEL SECTION (Page 12) 3-9.TAPE MECHANISM DECK (CWM43FR34) (Page 13) 3-8.MAIN BOARD (Page 13) 3-14. CD BOARD (Page 16) 3-13. BASE UNIT (BU-F1BD81A) (Page 15) 3-10. TABLE ASSY (Page 14) 3-11. MOTOR (TB) BOARD (Page 14) 3-12. MOTOR (LD) BOARD (Page 15) 3-5.CD MECHANISM DECK (CDM74-F1BD81) (Page 11) Note 1:The process described in can be performed in any order. Note 2:Without completing the process described in , the next process can not be performed. CX-JN77 10 3-3.CASE (TOP) Note: Follow the disassembly procedure in the numerical order given. 3-2.CASE (SIDE-L/R) 2case (top) 1two screws (BVTP3 10) 4case (side-L) 7case (side-R) 6two screws (BVTP3 10) 3two screws (BVTP3 10) 1two screws (case 3 TP2) 5three screws (case 3 TP2) 2screw (case 3 TP2) CX-JN77 11 3-4.TRAY PANEL 3-5.CD MECHANISM DECK (CDM74-F1BD81) 1Turn the loading gear in the direction of arrow A. A four claws 3Remove the tray panel in the direction of arrow C. C 2Pull-out the tray in the direction of arrow B. B 7CD mechanism deck (CDM74-F1BD81) 2screw (BVTP3 10) 3three screws (BVTP3 10) 1screw (BVTP3 10) 5wire (flat type) (17 core) (CN873) 6two connectors (CN701, CN874) 4 CX-JN77 12 3-6.FRONT PANEL BLOCK 3-7.BACK PANEL SECTION 3screw (BVTP3 8) 5screw (BVTP3 8) 4harness 6harness 8front panel block 7three screws (BVTP3 8) 2connector (CN112) 1wire (flat type) (31 core) (AEP, UK, CIS)/ wire (flat type) (29 core) (E51, MX) (CN302) 2connector (CN309) 2connector (CN103) 3two screws (BVTP3 10) 1wire (flat type) (11 core) (E51, MX)/ wire (flat type) (15 core) (AEP, UK, CIS) (CN101) 2connector (CN308) 4duct cover 9back panel section 5three screws (BVTP3 10) 6two screws (BVTP3 10) 8SUB TRANS board 7two screws (BVTP3 10) Abbreviation E51: Chilean and Peruvian models MX: Mexican model Abbreviation E51: Chil