Aiwa-CX-LZX7-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL Sony Corporation Home Audio Company Published by Sony Engineering Corporation US Model Canadian Model AEP Model UK Model E Model MICRO HI-FI COMPONENT SYSTEM 9-877-859-01 2004E1679-1 2004.05 Ver 1.0 2004.05 SPECIFICATIONS CX-LZX7 CX-LZX7 is the Amplifier, CD player, Tape Deck and Tune

2、r section in AWP-ZX7. Main Unit Amplifier section For the U.S. model AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 6-ohm loads, both channels driven, from 120 10,000 Hz: rated 60 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 2

3、50 milliwatts to rated output. North American model: Continuous RMS power output (reference): 60 + 60 W (6 ohms at 1 kHz, 10% THD) Total harmonic distortion less than 0.05% (6 ohms at 1 kHz, 30 W) European model: DIN power output (rated): 45 + 45 W (6 ohms at 1 kHz, DIN) Continuous RMS power output

4、(reference): 60 + 60 W (6 ohms at 1 kHz, 10% THD) Music power output (reference): 100 + 100 W (6 ohms at 1 kHz, 10% THD) Other models: The following measured at 220 240 V AC, 50/60 Hz DIN power output (rated): 45 + 45 W (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 60 + 60 W (6 ohm

5、s at 1 kHz, 10% THD) Inputs AUX IN (RCA pin jacks): Sensitivity 1 V, impedance 47 kilohms Outputs PHONES (stereo mini jack): accepts headphones with an impedance of 32 ohms or more SPEAKER:accepts impedance of 6 ohms SUB WOOFER OUT:voltage 1.5 V CD player section SystemCompact disc and digital audio

6、 system LaserSemiconductor laser (=770 810 nm) Emission duration: continuous Frequency response20 Hz 20 kHz Signal-to-noise ratioMore than 90 dB Dynamic rangeMore than 90 dB Tape deck section Recording system4-track 2-channel stereo Frequency response100 10,000 Hz, using Sony TYPE I cassettes Tuner

7、section FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range North American model:87.5 108.0 MHz (100-kHz step) Other models:87.5 108.0 MHz (50-kHz step) AntennaFM lead antenna Antenna terminals75 ohms unbalanced Intermediate frequency10.7 MHz Model Name Using Similar MechanismNEW CD

8、 CD Mechanism TypeCDM69CV-F4BD81B2 Section Base Unit NameBU-F4BD81B2 Optical Pick-up NameKSM-215CFP/C2NP TAPE Model Name Using Similar MechanismNEW Section Tape Transport Mechanism TypeCMAL1Z250A Continued on next page RadioFans.CN 收音机爱 好者资料库 2 CX-LZX7 SAFETY-RELATED COMPONENT WARNING! COMPONENTS ID

9、ENTIFIED 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. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT

10、! LES COMPOSANTS IDENTIFS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PISES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPMENTS PUBLIS PAR SONY. Model NamePart No. US m

11、odel4-254-181-0 AEP, UK models4-254-181-1 E51 model4-254-181-3 CND model4-254-181-4 SP model4-254-181-6 Korean model4-254-181-7 (go back/go forward) qj (11) m/M (rewind/fast forward) qj (9, 11, 15, 17) x (stop) qk (11, 15, 17, 18) List of button locations and reference pages How to use this page Use

12、 this page to find the location of buttons and other parts of the system that are mentioned in the text. Illustration number r DISPLAYwd (16, 23) RR Name of button/partReference page ALPHABETICAL ORDER A O P Z BUTTON DESCRIPTIONS 1 0 qa qf qd qg qs 2345689 qk qj wd ql ws wa 7 qh w; 6 CX-LZX7 Remote

13、control ALBUM + qa (11, 13, 18) ALBUM qd (11, 13, 18) CD qk (10, 13, 19) CLEAR qg (13) CLOCK/TIMER SELECT 2 (21, 22) CLOCK/TIMER SET 3 (9, 21, 22) DISC SKIP 0 (11, 13) DISPLAY wa (16, 23) ENTER 9 (9, 13, 14, 21, 22) EQ qf (20) FM MODE 4 (16) FUNCTION 6 (10, 13, 14, 15, 17, 19, 26, 29, 31) PLAY MODE

14、w; (11, 13) REPEAT 4 (12) SLEEP ws (20) TAPE qj (17, 19) TUNER BAND 5 (14, 15, 19) TUNER MEMORY ql (14) TUNING MODE w; (14, 15) VOLUME +/ qs (21, 29) ?/1 (power) 1 (8, 15, 21, 26) m/M (rewind/fast forward) 7 (11, 15, 17) X (pause) 8 (11, 17) x (stop) 8 (11, 17, 18, 22) N (play) 8 (11, 17) /+ (tuning

15、) qh (14, 20) ./ (go back/go forward) qh (9, 11, 21) 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 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. 4P

16、ress ENTER. 5Press . or repeatedly to set the minute. 6Press ENTER. The clock starts working. To adjust the clock 1Press CLOCK/TIMER SET. 2Press . or until “CLOCK SET?” appears, then press ENTER. 3Do the same procedures as step 3 to 6 above. Notes The clock settings are canceled when you disconnect

17、the power cord or if a power failure occurs. You cannot set the clock in Power Saving Mode (page 23). Setting the clock 7 CX-LZX7 SECTION 3 DISASSEMBLY This set can be disassembled in the order shown below. The dotted square with arrow () prompts you to move to the next job when all of the works wit

18、hin the dotted square () are completed. 3-9.CD MECHANISM DECK (CDM69CV-F4BD81B2) (Page 12) 3-2.CD MECHANISM SECTION (Page 8) 3-3.FRONT PANEL SECTION (Page 9) 3-4.FRONT BOARD (Page 9) 3-5.CASSETTE DECK MECHANISM, USB BOARD (Page 10) 3-8.MAIN BOARD SECTION (Page 11) 3-10.OPTICAL PICK-UP SECTION (Page

19、12) 3-7.POWER TRANSFORMER (Page 11) 3-6.CASSETTE PANEL (Page 10) 3-1.SIDE PANEL (L) (R), TOP PANEL, BACK PANEL (Page 8) 3-18.RUBBER ROLLER (SLIDER) ASSY (Page 16) 3-19.TIMING BELT (FRONT/REAR) (Page 17) 3-20.CAM (GEAR) (Page 17) 3-21.SENSOR BOARD (Page 18) 3-13.SW BOARD, BRACKET (TOP) ASSY (Page 14)

20、 3-11.BASE UNIT (BU-F4BD81B) (Page 13) 3-17.MOTOR (MODE) ASSY (MODE) (M771) (Page 16) 3-16.MOTOR (ROLLER) ASSY (ROLLER) (M781) (Page 15) 3-15.MOTOR (STOCKER) ASSY (STOCKER) (M761) (Page 15) 3-14.CONNECTOR BOARD (Page 14) SET 3-12.BD BOARD, OPTICAL PICK-UP (KSM-215CFP/C2NP) (Page 13) 8 CX-LZX7 Note:

21、Follow the disassembly procedure in the numerical order given. 3-1. SIDE PANEL (L)(R), TOP PANEL, BACK PANEL 3-2. CD MECHANISM SECTION 6 CD mechanism section 2 wire (flat type) 27core (CN901) 1 wire (flat type) 27core (CN902) 3 screw (QT2+3 10) 4 screw (QT2+3 10) 5 claw qj connector 2p(CN292) 1 four

22、 screws (+BVTP3 10(BLK) 4 six screws (+BVTP3 10(BLK) qg nine screws (+BVTP3 10(BLK) qh wire (flat type) 15core(CN602) 7 screw (+BVTP3 10(BLK) 3 side panel (L) qa top panel qk back panel qd three screws (QT2+3 10) 8 screw (QT2+3 10) 9 screw (QT2+3 10) qs screw (QT2+3 10) 0 screw (QT2+3 10) qf screw (

23、QT2+3 10) 5 three claws 2 three claws 6 side panel (R) 9 CX-LZX7 3-3. FRONT PANEL SECTION 3-4. FRONT BOARD 3 connector (CN203) 9 connector (CN302) 1 wire (flat type) 19core (CN904) 4 wire (flat type) 7core (CN701) 0 front panel section 2 wire (flat type) 8core (cassette deck mechanism) 5 two screws

24、(+BVTP3 6) 6 screw (QT2+3 6) 7 screw (QT2+3 6) 8 two claws 6 screw (+BVTP3 10) 7 two claws 8 two claws 9 indicator (BASS), I-BASS sheet 5 thirteen screws (+BVTP3 10) 3 screw (+BVWHTP3 8) 2 knob (VOL) 1 two knobs (BT) qa FRONT board 4 HP board 0 wire (flat type) 19core (CN905) 10 CX-LZX7 3-5. CASSETT

25、E DECK MECHANISM, USB BOARD 3-6. CASSETTE PANEL 4 cassette deck mechanism 9 USB board 0 shield case (USB A) qa USB shield plate 7 shield case (USB B) 1 three screws (+BVTP3 10) 2 screw (+BVTP3 10) 8 screw (+BVTP3 6) 5 two screws (+BVTP3 10) 3 shield (DECK) 6 wire (flat type) 7core (CN801) 4 cassette

26、 panel 3 four claws 5 window case 2 1 11 CX-LZX7 3-7. POWER TRANSFORMER 3-8. MAIN BOARD SECTION 2 connector 5p(CN257) 6 connector 2p(CN251) 7 power transformer 3 cable tie 4 ferrite core 1 cable tie 5 four s-screws (ITC +4- 10R) 1 connector 2p(CN202) 5 screw (BVIT3B+3- 8R W/O) 6 two screws (BVIT3B+3

27、- 8R W/O) 2 screw (BVIT3B+3- 8R W/O) 4 holder (pwb.PT) 0 holder pwb 3 two claws 7 six screws (+BVTP3 10) 8 four screws (+BVTP3 10) 9 screw (+BVTP3 10) qs MAIN board qa heat sink assy (MAIN) 12 CX-LZX7 3-9. CD MECHANISM DECK (CDM69CV-F4BD81B2) 3-10. OPTICAL PICK-UP SECTION 1 four screws (+BVTP3 10) 2

28、 CD mechanism deck (CDM69CV-F4BD81B2) 4boss 6boss 3boss 5boss 1floating screw (DIA. 12) 2screw (+PTPWH) (M2) (DIA. 7) 7 optical pick-up section 13 CX-LZX7 3-11. BASE UNIT (BU-F4BD81B2) 3-12. BD BOARD, OPTICAL PICK-UP (KSM-215CFP/C2NP) 1 tension spring (BU30-1) qs base unit (BU-F4BD81B2) 8 vibration

29、proof rubber 3 floating screw (+PTPWHM2.6 6) 5 floating screw (+PTPWHM2.6 6) 4 floating screw (+PTPWHM2.6 6) 2 floating screw (+PTPWHM2.6 6) 9 vibration proof rubber q; vibration proof rubbers 7 vibration proof rubber qa wire (flat type) 19corre (CN202) 6 1 Remove the solder (four portions). 3 BD bo

30、ard 4 optical pick-up (KSM-215CFP/C2NP) 2 wire (flat type) (16 core) 14 CX-LZX7 3-13. SW BOARD, BRACKET (TOP) ASSY 3-14. CONNECTOR BOARD 6six screws (BVTP2.6 8) 5SW (4) board 4SW (3) board 3SW (2) board 2SW (1) board 7bracket (top) assy 1 four screws (BTP2.6 6) 3 1Remove five solders. bottom view CO

31、NNECTOR board 2four screws (BVTP2.6 8) 4 connector (CN710) 5 connector (CN703) 6 CONNECTOR board 15 CX-LZX7 3-15. MOTOR (STOCKER) ASSY (STOCKER)(M761) 3-16. MOTOR (ROLLER) ASSY (ROLLER)(M781) 4 5stocker motor board 3two screws (BVTP2.6 8) 2Remove two solders 6 motor (stocker) assy (stocker) (M761) 1

32、 belt (stocker) 1belt (roller V) 4 ROLLER MOTOR board 2Remove two solders. 3two screws 5motor (roller) assy (roller)(M781) 16 CX-LZX7 3-17. MOTOR (MODE) ASSY (MODE)(M771) 3-18. RUBBER ROLLER (SLIDER) ASSY 1Remove five solders of rotary encoder. 2Remove two solders of motor (M771) MODE MOTOR board 3t

33、wo screws (BVTP2.6 8) 4MODE MOTOR board 5belt (mode V) 6motor (mode) assy (mode) (M771) qgsub chassis qfscrew (BVTP2.6 8) 8step screw qsstep screw 5step screw 9 tension spring (slider 2) 6 tension spring (base slider 4) 0rubber roller (slider 4) assy 7rubber roller (slider 1) assy qarubber roller (s

34、lider 2) assy qdrubber roller (slider 1) assy 3 tension spring (base slider 5) 1step screw 4rubber roller (slider 5) assy 2rubber roller (slider S) assy bracket (top) assy 17 CX-LZX7 3-19. TIMING BELT (FRONT/REAR) 3-20. CAM (GEAR) Note: Refer to Section 4 assembly (see page 19) 2gear (mode cam) : No

35、te 1screw (PTPWH2.6 8) 3slider (mode cam) assy 5two gears (center) 7two gears (center) 8timing belt (rear) 9timing belt (rear) 4gear (timing) 6timing belt (front) timing belt (rear) When install three timing belts, its pass under each claws. timing belt (rear) timing belt (front) claw claw claw claw

36、 qf cam (gear) : Note qs gear(mode cam) 0 gear (mode C) :Note 4 gear (mode 5) 8 gear (mode D) 6 gear (mode 5) 1 screw(PTPWH2.6 8) 7 screw (PTPWH2.6 8) 9 screw (PTPWH2.6 8) qa screw (PTPWH2.6 8) 3 screw (PTPWH2.6 8) 5 screw (PTPWH2.6 8) 2 pulley (mode deceleration) qd screw Note: Refer to assembly (S

37、ection 4). 18 CX-LZX7 3-21. SENSOR BOARD ql harness qd gear (eject lock) q; cam (eject lock) : Note qh two claws qj rotary encoder (S771) qf gear (mode B) w; screw (BVTP2.6 8) qg screw (PTPWH2.6 8) wa SENSOR board 8 shaft (shutter) 7 compression spring (shutter) qs cam (BU U/D) qa screw (PTPWH2.6 8)

38、 3 screw (BVTP2.6 8) 1 screw (PTPWH2.6 8) 4 two screws (BVTP2.6 8) 2 lever shutter (A) 5 base (shutter) block 6 gear (mode A) 9 screw (PTPWH2.6 8) qk claw Note: Refer to Section 4 assembly (see page 19). 19 CX-LZX7 This set can be assembled in the order shown below. 4-1. HOW TO INSTALL THE CAM (EJEC

39、T LOCK) SECTION 4 ASSEMBLY 4-2. HOW TO INSTALL THE CAM (GEAR) boss cam (gear) mark cam (BU U/D) bottom view front 1Check that the cam (BU U/D) can not be rotated in the direction of arrow. 2Align the mark on the cam (gear) with the boss as shown in the figure and install the cam (gear). mark cam (BU

40、 U/D) cam (eject lock) bottom view front gear (eject lock) 1Rotate the cam (BU U/D) fully in the direction of arrow. 2Engage the gear (eject lock) and the gear of the cam (eject lock) aligning the mark with the center of the gear (eject lock). 20 CX-LZX7 4-3. HOW TO INSTALL THE GEAR (MODE C) 4-4. HO

41、W TO INSTALL THE GEAR (MODE CAM) 1Align the mark on the rotary encoder (S771) with the projection of the assy. 2Check that the cam (BU U/D) can not be rotated in the direction of arrow. 3Install the gear (mode C) bottom view front gear (mode C) rotary encoder (S771) cam (BU U/D) markprojection chass

42、is mark B slider (mode cam) assy shaft mark A mark D gear (mode cam) cam (gear) mark C 1Slide the shaft in the direction of arrow. 2Align mark A on the gear (mode cam) with mark B on the slider (mode cam) assy, then install the gear (mode cam). 3Check that mark C on the gear (mode cam) is in alignme

43、nt with mark D on the cam (gear). bottom view front 21 CX-LZX7 4-5. HOW TO INSTALL THE ROTARY ENCODER (S702), GEAR (STOCKER COMMUNICATION) 4-6. HOW TO INSTALL THE STOCKER ASSY 2 five solders 6 two gears (stocker communication) 4 gear (stocker communication) CONNECTOR board 7two screws (PTPWH2.6 8) 5

44、screw (PTPWH2.6 8) 3screw (PWH2 6) rotary encoder (S702) gear (stocker communication) rear 1rotary encoder (S702) Engage the rotary encoder (S702) and the gear (stocker communication) as shown below in the figure. 2cam (stocker V) 3screw (PTPWH2.6 8) 4two cams (stocker U/D) 5two screws (PTPWH2.6 8)

45、boss boss rotary encoder (S702) Install the stocker assy fitting three bosses into the each groove of cam then fix by rotating the cams in the direction of arrow. hole gear (stocker communication) rear screw 1Position the hole on the gear (stocker communication) on the screw of the rotary encoder (S

46、702). To install three cams, align each groove of the cam with each f mark on the chassis as shown in the figure. cam 22 CX-LZX7 AM Channel Step 9 kHz/10kHz Selection Mode *Either the 9 kHz step or 10 kHz step can be selected for the AM channel step. (EXCEPT AEP,UK) Procedure: 1.Set the FUNCTION to

47、AM. 2.While depressing the button, press the ?/1 button. 3.The channel step is changed over. CD Test Mode *This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the pickup. Procedure: 1.Press the ?/1 button to turn the set on. 2.While depressing the CD u button, Pres

48、s the DIRECTION button. The message “CD TEST” is displayed. 3.With the CD in stop status, press the button to move the pickup to outside track, or press the . button to inside track. 4.When press the CD u button, normal playback is performed. 5.Each time the CD u button is pressed during normal play

49、back, the tracking servo is switched on or off. 6.To exit this mode, either change to other functions or extract an AC plug. CD Repeat 5 Times Limit Release Mode Procedure: 1.Press the ?/1 button to turn the set on. 2.Select the FUNCTION to CD. 3.Press two buttons of and DIRECTION simultaneously. 4.The repeat all mark blinks and then repeat 5 times limi