Aiwa-CX-LMN5-Service-Manual 电路图 维修手册.pdf

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1、CX-LMN5 US Model Canadian Model AEP Model UK Model E Model SERVICE MANUAL MICRO HI-FI COMPONENT SYSTEM Sony Corporation Home Audio Company Published by Sony Engineering Corporation 9-877-183-01 2003D167800-1 2003.04 CX-LMN5 is the Amplifier, CD player, Tape Deck and Tuner section in XR-MN5. SPECIFIC

2、ATIONS Ver 1.0 2003.04 MAIN UNIT CX-LMN5 TUNER FM tuning range87.5 MHz to 108 MHz FM usable sensitivity (IHF)16.8 dBf FM antenna terminal75 (unbalanced) AM tuning range531 kHz to 1602 kHz (9 kHz Step) (AEP, UK) AM usable sensitivity350 V/m AM antennaLoop antenna AMPLIFIER Power outputRated: 64 W + 6

3、4 W (6 , T.H.D. 1 %, 1 kHz/DIN 45500) Reference: 80 W + 80 W (6 ,T.H.D. 10 %, 1 kHz/DIN 45324) MUSIC POWER: 220 W + 220 W InputAUX IN: 1.4 V OutputsSPEAKERS: 6 or more PHONES: 32 or more CASSETTE DECK Track format4 tracks, 2 channels stereo Frequency response100 Hz 10000 Hz Recording systemAC bias H

4、eadsRecording/playback 1, erase 1 CD PLAYER LaserSemiconductor laser ( = 800 nm) Emission duration: continuous D/A converter1 bit dual Signal-to-noise ratio85 dB (1 kHz, 0 dB) Wow and flutterUnmeasurable GENERAL Power requirements230 V AC, 50/60 Hz (AEP, UK) Power consumption85 W (EXCEPT US, CND) Po

5、wer consumption in standby mode with ECO mode on: 0.26 W (AEP, UK) with ECO mode off: 15 W (AEP, UK) Dimensions (w/h/d)Approx. 190 277 353 mm MassApprox. 6.8 kg Supplied accessories:FM antenna (1) AM antenna (1) Speaker cords (2) Remote commander (1) Batteries (2) Specifications and external appeara

6、nce are subject to change without notice. 530 kHz to 1710 kHz (10kHz Step) (EXCEPT AEP, UK) 531 kHz to 1710 kHz (9kHz Step) (EXCEPT AEP, UK) 120 V AC, 60 Hz (US, CND) 120V/220V/230-240V AC, 50/60 Hz (E) 80 W (US, CND) 0.25 W (US, CND) 16 W (US, CND) 0.25 W (E) 16 W (E) Model Name Using Similar Mecha

7、nismNEW CD CD Mechanism TypeCDM69BV-30CBD64NS Section Base Unit NameBU-30CBD64NS Optical Pick-up NameA-MAX.3 TAPE Model Name Using Similar MechanismNEW Section Tape Transport Mechanism TypeCMAL1Z240A Abbreviation CND : Canadian model. RadioFans.CN 收音机爱 好者资料库 2 CX-LMN5 1. SERVICING NOTES3 2. GENERAL

8、4 3. DISASSEMBLY 3-1. Side Panel (L)(R), Top Panel, Back Panel 7 3-2. CD Mechanism Section 7 3-3. Front Panel Section 8 3-4. FRONT Board 8 3-5. Cassette Deck Mechanism 9 3-6. Cassette Panel 9 3-7. Power Transformer 10 3-8. MAIN Board Section 10 3-9. CD Mechanism Deck (CDM69BV-30CBD64NS) 11 3-10. Bas

9、e Unit Section 11 3-11. Base Unit (BU-30CBD64NS) 12 3-12. BD Board 12 3-13. SW Board, Bracket (TOP) Assy 13 3-14. CONNECTOR Board 13 3-15. Motor (Stocker) Assy (Stocker)(M761) 14 3-16. Motor (Roller) Assy (Roller)(M781) 14 3-17. Motor (Mode) Assy (Mode)(M771) 15 3-18. Rubber Roller (Slider) Assy 15

10、3-19. Timing Belt (Front/Rear) 16 3-20. Cam (Gear) 16 3-21. SENSOR Board 17 4. ASSEMBLY 4-1. How to Install the Cam (EJECT LOCK) 18 4-2. How to Install the Cam (GEAR) 18 4-3. How to Install the Gear (MODE C) 19 4-4. How to Install the Gear (MODE CAM) 19 4-5. How to Install the Rotary Encoder (S702),

11、 Gear (STOCKER COMMUNICATION) 20 4-6. How to Install the Stocker Assy 20 5. TEST MODE 21 6. MECHANICAL ADJUSTMENTS 22 7. ELECTRICAL ADJUSTMENTS 22 8. DIAGRAMS 27 8-1. Block Diagram BD, Changer Section 28 Main Section 29 8-2. Printed Wiring Boards BD Section 30 8-3. Schematic Diagram BD Section 31 8-

12、4. Printed Wiring Boards Changer Section 32 8-5. Schematic Diagram Changer Section 33 8-6. Printed Wiring Boards Front Section 34 8-7. Schematic Diagram Front Section 35 8-8. Printed Wiring Boards Main Section 36 8-9. Schematic Diagram Main Section 1 37 8-10. Schematic Diagram Main Section 2 38 8-11

13、. Schematic Diagram Main Section 3 39 8-12. Schematic Diagram Main Section 4 40 8-13. Schematic Diagram Main Section 5 41 8-14. Schematic Diagram Main Section 6/Power Section 42 8-15. Printed Wiring Boards Power Section 43 8-16. IC Block Diagrams 44 8-17. IC Pin Function Description 47 9. EXPLODED V

14、IEWS 9-1. Panel Section 49 9-2. Front Section 50 9-3. Chassis Section 51 9-4. CD Mechanism Deck Section 1 (CDM69BV-30CBD64NS) 52 9-5. CD Mechanism Deck Section 2 (CDM69BV-30CBD64NS) 53 9-6. CD Mechanism Deck Section 3 (CDM69BV-30CBD64NS) 54 9-7. CD Mechanism Deck Section 4 (CDM69BV-30CBD64NS) 55 9-8

15、. CD Mechanism Deck Section 5 (CDM69BV-30CBD64NS) 56 9-9. CD Mechanism Deck Section 6 (CDM69BV-30CBD64NS) 57 9-10. CD Mechanism Deck Section 7 (CDM69BV-30CBD64NS) 58 9-11. Optical pick-up Section 59 10.ELECTRICAL PARTS LIST 60 TABLE OF CONTENTS SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED

16、 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! LES CO

17、MPOSANTS 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. RadioFans.CN 收音机爱 好者资料库 3 CX-LM

18、N5 SECTION 1 SERVICING NOTES Fig. A.Using an AC voltmeter to check AC leakage. 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure

19、. 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 during repairing. Do not touch the soldering iron on

20、the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. SAFETY CHECK-OUT After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna termi

21、nals, 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 metal parts to any exposed metal part having a return to chassis, must not ex

22、ceed 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 instruments. 2.A battery-operated AC milliammeter. The Data Precision 245 digital mu

23、ltimeter 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” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is s

24、uitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A) This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the exterior. Laser component in this product is capable of emitting radiation exceedi

25、ng the limit for Class 1. The laser diode in the optical 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 p

26、rocedure 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

27、 optical pick- up block. Therefore, when checking the laser 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. UNL

28、EADED 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 c

29、haracteristics. 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:

30、 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 viscous (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 s

31、older It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT RadioFans.CN 收音机爱 好者资料库 4 CX-LMN5 SECTION 2 GENERALThis section is extracted from instruction manual. PARTS AND CONTROLS Main unit: front Re

32、fer to the pages indicated in parentheses for details. 1 4 5 2 3 6 7 8 9 0 1 POWER 6STANDBY/ON (8) Switches the unit on and off (standby). 2 ECD (8, 10-12) Starts and pauses CD play. TUNER/BAND (8, 14) Selects tuner function and the tuner band. dTAPE (REC MUTING) (8, 17, 19) Starts playback and chan

33、ges the playback side. Also used to enter 4-second blank spaces during recording. AUX (8) Selects the function of external equipment connected to AUX IN jacks. 3 ECO/RDS (8, 14-16) Sets the ECO mode on or off. Tuner: Activates RDS features. SYNCHRO REC (18) Starts recording and CD play simultaneousl

34、y. REC START/REC PAUSE (18-20) Starts and pauses recording. 4 s (10-12, 17, 18, 20) CD and Tape: stops playback. Tuner: clears a preset station. TUNINGf/r-,+t/g(8,10-12, 14, 17, 21, 22) CD: skips to a previous or a succeeding track when pressed, searches a track in fast forward or reverse playback w

35、hen held down. Tape: rewinds or fast forwards the tape. Tuner: manually tunes up or down within the band. 5 VOLUME (9) Adjusts the volume. 6 TREBLE (9) Adjusts the treble level. BASS (9) Adjusts the bass level. 7 zCD EJECT (10, 12) Ejects the disc(s). CD slot buttons (1-5) (8, 10-12) Selects a disc

36、slot. Starts CD play for one desired disc. 8 i-Bass/DEMO (4, 9) Produces rich and clear low frequency sound. Switches DEMO on and off while the unit is turned off. 9 PUSH EJECTz (17-19) Opens or closes the cassette holder. 0 PHONES jack Plug in optional headphones set with a stereo mini plug (3.5 mm

37、). Speaker output is cancelled. Main unit: rear Refer to the pages indicated in parentheses for details. 1 3 2 4 5 6 1 AM LOOP jack and FM 75 terminal (4) Plug in the supplied AM and FM antennas. 2 SUB WOOFER3 jack Connect optional powered sub woofer with a built-in amplifier to the jack. 3 DIGITAL

38、OUT (OPTICAL) jack (AEP, UK) CD digital sound signals can be output through this jack. Use an optical cable to connect digital audio equipment. Fit an optical cable plug in the DIGITAL OUT (OPTICAL) jack and push it to connect. 4 AUX IN jacks Accept analogue sound signals from external equipment. Co

39、nnect external equipment 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 for your equipment. To switch function to external input, press AUX. To change a source name in the display of the AUX function. Hold

40、down AUX and press POWER while the power is on. AUXVIDEOTV 5 SPEAKERS3 terminals (4) Connect the speaker cords of the supplied speakers. 6 AC power cord (4) (AEP,UK) 120V 220V 230-240V7 (E) 7 VOLTAGE SELECTOR (E) 120 V/220 V/230-240 V AC,50/60Hz 5 CX-LMN5 Remote commander Refer to the pages indicate

41、d in parentheses for details. 1 4 5 6 7 9 8 ! # 0 2 3 Buttons with the same or similar names on the main unit basically have the same function. 1 POWER (8) 2 110/0, 10 (10-12, 15, 19, 20) CD: selects a track of the specified number. Tuner: tunes in the station with the specified preset number. The n

42、umbered buttons take on these functions when pressed with SHIFT held down: CLOCK (8) Selects clock mode. TIMER (21, 22) Selects timer mode. MUTING (9) To turn off the sound temporarily. TUNER MODE (15) Switches between stereo or monaural FM reception. REV MODE (17, 18, 22) Selects a reverse mode. DI

43、SC/ALBUM (12) Selects disc mode or album mode on an MP3-CD. CD EDIT/CHECK (19, 20) Selects edited CD recording. 3 SHUFFLE/PROGRAM (11) Selects shuffle or programmed CD playback mode. REPEAT (11) Selects repeat CD playback mode. 4 ALBUM/PRESETN,M (12, 15) MP3-CD:Skips to a previous or succeeding albu

44、m. Tuner: Tunes in a preset station. f/r,t/g (8, 10-12, 14, 17, 21, 22) ENTER (8, 14, 15, 21, 22) Determines the mode. Stores the received station to preset. 5 ECD (8, 10-12) TUNER/BAND (8, 14) dTAPE (8, 17) AUX (8) 6 DISPLAY (10, 12) Changes the display in CD playback mode. DIMMER (8) Adjusts the d

45、isplay window brightness. SLEEP (21) Selects sleep-timer mode. 7 SHIFT Hold down when pressing a numbered button to change its function to that printed above the number. 8 DISC SELECT (10, 12) Selects a desired CD slot. 9 CLEAR (11, 15, 21, 22) CD: Clears a CD program Tuner: Clears a preset station.

46、 0 i-Bass (9) TONE (9) Selects the bass or treble adjusting mode. ! s (10-12, 17, 18, 20) FUNCTION (18-20) Switches the active function among TAPE, TUNER, AUX (VIDEO or TV) and CD. # VOLUME +,- (9) ADJUSTMENTS BEFORE OPERATION ECO/RDS CLOCK POWER DIMMER SHIFT u CD, TUNER/ BAND, Y TAPE, AUX m ,M POWE

47、R 6STANDBY/ON u CD, TUNER/ BAND, Y TAPE, AUX ENTER m ,M ECO mode Reduces power consumption in standby mode with the following operations. Press ECO/RDS. (AEP,UK : ECO/RDS EXCEPT AEP,UK : ECO) Each press of the button changes the mode as follows; ECO ON: Power economizing mode is activated. When the

48、unit turns off, everything on the display clears and only the red indicator above POWER lights to show that the power is being supplied. ECO OFF: Power economizing mode is cancelled. When the unit turns off, the clock display appears. Initial mode is ECO OFF. Standby power consumption ECO ON: 0.26 W

49、 ECO OFF: 15 W Setting the clock 1In stop mode, hold down SHIFT and press CLOCK on the remote. Go to step 3 when the hour of the clock display flashes. 2Within 6 seconds, press ENTER. The hour flashes in the display. 3Press f or g to set the hour, then press ENTER. 4Press f or g to set the minute. Each press changes the time in 1-minute steps. 5Press ENTER. The time display stops flashing and the clock starts from 00 seconds. To display the time while the power is on Hold down SHIFT a