Aiwa-CX-LEM200-Service-Manual 电路图 维修手册.pdf

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1、CX-LEM200 US Model Canadian Model AEP Model UK Model E Model Australian Model SERVICE MANUAL MICRO HI-FI COMPONENT SYSTEM Sony Corporation Personal Audio Group Published by Sony Engineering Corporation 9-877-164-04 2005C16-1 2005.03 CX-LEM200 is the Amplifier, CD player, Tape Deck and Tuner section

2、in XR-EM200. SPECIFICATIONS Ver. 1.3 2005.03 Model Name Using Similar MechanismNEW CD CD Mechanism TypeKSM-213EDP Section Base Unit NameBU-K7BD44B Optical Pick-up NameKSS-213E/C2N TAPE Model Name Using Similar MechanismNEW Section Tape Transport Mechanism TypeCMAL5Z220A TUNER FM tuning range87.5 MHz

3、 to 108 MHz FM usable sensitivity (IHF)16.8 dBf FM antenna terminal75 ohms (unbalanced) MW tuning range531 kHz to 1602 kHz AM tuning range530 kHz to 1710 kHz (10 kHz step) 531 kHz to 1710 kHz (9 kHz step) US and CND models: AEP, UK, E and AUS models: AM usable sensitivity350 V/m AM antennaLoop anten

4、na AMPLIFIER Power output (AEP and UK models) Rated: 8 W + 8 W(6 , T.H.D. 1 %, 1 kHz/DIN 45500) Reference: 10 W + 10 W(6 , T.H.D. 10 %, 1 kHz/DIN 45324) MUSIC POWER 20 W + 20 W InputAUX IN: 800 mV OutputsSPEAKERS: 6 or more PHONES: 32 or more CASSETTE DECK Track format4 tracks, 2 channels stereo Fre

5、quency response50 Hz 10000 Hz Recording systemAC bias HeadsRecording/playback 1, erase 1 CD PLAYER LaserSemiconductor laser ( = 780 nm) Emission duration: continuous D/A converter1 bit dual Signal-to-noise ratio95 dB (1 kHz, 0 dB) Wow and flutterUnmeasurable GENERAL 230 V AC, 50/60 Hz (AEP, UK) Powe

6、r requirements120 V AC, 60 Hz (US, CND, MX, TW) Power consumption40 W Power consumption in standby mode with ECO mode on: 0.3 W with ECO mode off: 6 W Dimensions (w/h/d)Approx. 163 230.5 243 mm MassApprox. 3.0 kg Supplied accessories:FM antenna (1) AM antenna (1) Remote commander (1) Batteries (2) S

7、pecifications and external appearance are subject to change without notice. AUDIO POWER SPECIFICATIONS: (U.S.A. model only) POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 6-ohm loads, both channels driven, from 100 - 10,000 Hz; rated 10 W per channel minimum RMS power, with no more than 10% total

8、harmonic distortion from 250 mW to rated output. 220-240V AC, 50/60Hz (E15) 220V AC, 60Hz (KR) 220-240V AC,50/60Hz (SP, MY) 220-240V AC, 50/60Hz (AUS) Voltage Selector models:110-120V or 220-240V AC 50/60Hz Adjustable with voltage selector Abbreviation AUS : Australian model. CND: Canadian model. SP

9、: Singapore model. MY : Malaysia model. TW : Taiwan model. KR: Korean model. E51 : Chilean and Peruvian models. MX : Mexican model. RadioFans.CN 收音机爱 好者资料库 2 CX-LEM200 1. SERVICING NOTES3 2. GENERAL5 3. DISASSEMBLY 3-1. Rear Cabinet 7 3-2. CD Cabinet Section, Front Panel Section 8 3-3. CD Mechanism

10、Deck8 3-4. CONTROL Board 9 3-5. Tape Mechanism Deck 9 3-6. Cassette Door Assy 10 3-7. POWER Board, MAIN Board 10 3-8. Optical Pick-up (KSS-213E/C2N) 11 4. MECHANICAL ADJUSTMENTS 12 5. ELECTRICAL ADJUSTMENTS 12 6. DIAGRAMS 15 6-1. Block Diagram CD Section 17 6-2. Block Diagram Main Section 18 6-3. Pr

11、inted Wiring Board CD Section 19 6-4. Schematic Diagram CD Section 20 6-5. Printed Wiring Boards Main Section 21 6-6. Schematic Diagram Main Section 22 6-7. Printed Wiring Board Control Section 23 6-8. Schematic Diagram Control Section 24 6-9. Printed Wiring Board Power Section 25 6-10. Schematic Di

12、agram Power Section 26 6-11. IC Pin Function Description 28 7. EXPLODED VIEWS 7-1. Cabinet Section 30 7-2. Front Panel Section 31 7-3. CD Cabinet Section 32 7-4. KSM-213EDP 33 8. ELECTRICAL PARTS LIST 34 TABLE OF CONTENTS Ver 1.1 2003.06 MODEL IDENTIFICATION REAR PANEL Abbreviation AUS : Australian

13、model. CND: Canadian model. SP: Singapore model. MY : Malaysia model. TW : Taiwan model. KR: Korean model. E51 : Chilean and Peruvian models. MX : Mexican model. Parts No. Parts No. 4-245-014-1s 4-245-014-3s 4-245-014-4s Model Destination US, CND, AEP, UK E51, AUS, MX, TW, KR SP, MY RadioFans.CN 收音机

14、爱 好者资料库 3 CX-LEM200 SECTION 1 SERVICING NOTES 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 TH

15、IS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. 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 SAFETY CHECK-OUT After correcting the original service problem, perform the following safety check before releasing the set to

16、 the customer: Check the antenna terminals, 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 h

17、aving a return to chassis, must not exceed 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 milliamme

18、ter. The Data Precision 245 digital multimeter 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 a

19、re examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A) CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. This ap

20、pliance is classified as a CLASS 1 LASER product. This label is located on the exterior. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential differe

21、nce 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.

22、 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 emission, observe from more than 30 cm away from the objective lens. LASE

23、R 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 Notes on chip component replacement Never reuse a disconnected chip component. Notice

24、 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 the same conductor of the circuit board (within 3 times). Be careful not to apply force

25、 on the conductor when soldering or unsoldering. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! 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

26、NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPMENTS PUBLIS PAR SONY. Ver 1.1 2003.06 RadioFans.CN 收音机爱 好者资料库 4 CX-LEM200 Service Position of the CD Mechanism Deck Service Position of the Tape Cassette Mechanism Deck 5 CX-LEM200 SECTION 2 GENERALThis section is extracted from instruction manual. 5

27、 En PARTS AND CONTROLS Main unit: front Refer to the pages indicated in parentheses for details. 1 26 5 4 7 3 8 1 POWER 6STANDBY/ON (7) Switches the unit on and off (standby). 2 ECO (7) Sets the ECO mode on or off. SYNCHRO REC (13) Starts recording and CD play simultaneously. REC START/PAUSE (13) St

28、arts and pauses recording. DISPLAY (8) Changes the display in CD playback mode. 3 PHONES jack Plug in optional headphones set with a stereo mini plug (3.5 mm). Speaker output is cancelled. 4 OPEN (8) Opens or closes the disc compartment. 5 ECD (7-9) Starts and pauses CD play. TUNER/BAND (7, 10) Sele

29、cts tuner function and the tuner band. cTAPE (REC MUTING) (7, 12, 13) Starts playback. Also used to enter 4-second blank spaces during recording. AUX (7) Selects the function of external equipment connected to AUX IN jacks. 6 VOLUME (11, 14) Adjusts the volume. 7 f/r-, +t/g (8, 10-12, 14, 15) CD: sk

30、ips to a previous or a succeeding track when pressed, searches a track in fast forward or reverse playback when held down. Tape: rewinds or fast forwards the tape. Tuner: manually tunes up or down within the band. sSTOP (8, 9, 12, 13) CD and tape: stops playback. Tuner: clears a preset station. TONE

31、 (11) Adjusts the bass or treble level. 8 zPUSH EJECT (12, 13) Opens or closes the cassette holder. Main unit: rear Refer to the pages indicated in parentheses for details. 3 4 5 2 1 1 AM jack and FM 75 terminal (4) Plug in the supplied AM and FM antennas. 2 AUX IN jacks Accept analogue sound signal

32、s from external equipment. Connect 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 displ

33、ay of the AUX function. Hold down AUX and press POWER while the power is on. AUXVIDEOTV 3 SUB WOOFER jack Connect optional powered sub woofer with a built-in amplifier to the jack. 4 SPEAKER terminals (4) Connect the speaker cords of the supplied speakers. 5 AC power cord (4) 6 En Remote commander R

34、efer to the pages indicated 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 (7) 2 110/0, 10 (8-10) CD: selects a track of the specified number. Tuner: tunes in the station with the specified preset

35、number. The numbered buttons take on these functions when pressed with SHIFT held down: CLOCK (7) Selects clock mode. TIMER (14) Selects timer mode. TUNER MODE (10) Switches between stereo or monaural FM reception. 3 SHUFFLE/PROGRAM (8, 9) Selects shuffle or programmed CD playback mode. REPEAT (8) S

36、elects repeat CD playback mode. 4 PRESETN,M (10) f/r,t/g (8, 10-12, 14, 15) ENTER (7, 10, 14, 15) Determines the mode. Stores the received station to preset. 5 ECD (7-9) TUNER/BAND (7, 10) dTAPE (7, 12) Starts playback but cannot change the playback side. AUX (7) 6 DISPLAY (8) Changes the display in

37、 CD playback mode. DIMMER (7) Adjusts the display window brightness. SLEEP (14) Selects sleep-timer mode. 7 SHIFT Hold down when pressing a numbered button to change its function to that printed above the number. 8 MUTING (11) To turn off the sound temporarily. 9 CLEAR (9, 10, 15) CD: Clears a CD pr

38、ogram. Tuner: Clears a preset station. 0 TREBLE (11) Adjusts the treble level. BASS (11) Adjusts the bass level. ! s (8, 9, 12, 13) FUNCTION (13) Switches the active function among TAPE, TUNER, AUX (VIDEO or TV) and CD. # VOLUME +,- (11) 6 CX-LEM200 7 En ADJUSTMENTS BEFORE OPERATION ECO CLOCK POWER

39、DIMMER SHIFT ECD, TUNER/ BAND, dTAPE, AUX f,g POWER 6STANDBY/ON ECD, TUNER/ BAND, cTAPE, AUX ENTER f,g ECO mode Reduces power consumption in standby mode with the following operations. Press ECO. Each press of the button changes the mode as follows; ECO ON: Power economizing mode is activated. When

40、the unit turns off, everything in the display disappears 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

41、: 0.3 W ECO OFF: 6 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 min

42、ute. 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 and press CLOCK on the remote. The time will be displayed for 6 seconds. If - -:- - appears when the unit

43、is turned off There has been a power interruption. Reset the clock. Power Turning the unit on Press POWER 6STANDBY/ON (POWER on the remote ). Alternatively, press cTAPE, TUNER/BAND, AUX or ECD. Playback will start automatically if a disc or tape is loaded. Turning the unit off Press POWER 6STANDBY/O

44、N again. The unit goes into standby. Dimmer The display window brightness can be selected. Press DIMMER on the remote repeatedly. Each press of the button changes the following three levels: DIMMER 1, DIMMER 2 and DIMMER 0. DIMMER 0 is the brightest. 7 CX-LEM200 SECTION 3 DISASSEMBLY Note: Follow th

45、e disassembly procedure in the numerical order given. This set can be disassembled in the order shown below. 3-1. Rear Cabinet REAR CABINET CD MECHANISM DECK (KSM-213EDP) OPTICAL PICK-UP (KSS-213E/C2N) CONTROL BOARDPOWER BOARD , MAIN BOARD TAPE MECHANISM DECK (CMAL5Z220A) CASSETTE DOOR ASSY SET CD C

46、ABINET SECTION, FRONT PANEL SECTION 1two screws (+BVTP3 10) 3two screws (+BVTP3 10) 4two screws (+BVTP3 10) 2five screws (+BVTP3 10) 5two screws (+K3 5) 6two screws (+K3 5) 7rear cabinet 8 CX-LEM200 3-2. CD Cabinet Section, Front Panel Section 3-3. CD Mechanism Deck 8connector (CN301) 9screw (+BVTP3

47、 10) q;two screws (+BVTP3 10) 1connector (S800) qdfront panel section 5CD cabinet section 4claw 3claw qaclaw qsclaw 2wire (flat type) 21p (CN101) 6wire (flat type) 21p (CN303) 7wire (flat type) 19p (CN302) 1two screws (+PSW2.6 10) 4two vibration proof rubbers (GRN) 5CD mechanism deck 3two vibration

48、proof rubbers (PNK) 2two screws (+PSW2.6 10) 9 CX-LEM200 3-4. CONTROL Board 3-5. Tape Mechanism Deck 3three screws (+BTP3 10) 1knob volume 4CONTROL board 2four screws (+BVTP3 10) 1wire (flat type) 7p (CN101) 2three screws (+BVTP3 10) 3tape mechanism deck 10 CX-LEM200 3-6. Cassette Door Assy 3-7. POW

49、ER Board, MAIN Board 1Open the cassette door assy. 3cassette door assy claw 2 1connector (AC IN) 2connector (CN901) 5two screws (+BVTP3 10) 3four screws (+BVTP4 12) 6MAIN board 4POWER board 11 CX-LEM200 3-8. Optical Pick-up (KSS-213E/C2N) 2gear (A) 1claw 5sled shaft 6KSS-213E/C2N 4 3 12 CX-LEM200 SECTION 4 MECHANICAL ADJUSTMENTS TAPE MECHANISM DECK SECTION Precaution 1.Clean the following parts with a denatured alcohol-moistened swab: record/playback headspinch rollers erase headrubber belts capstan