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1、SERVICE MANUAL COMPACT DISC DECK RECEIVER US Model Canadian Model AEP Model UK Model HCD-BX6AV E Model Australian Model HCD-DX6AV SPECIFICATIONS HCD-BX6AV/DX6AV Photo: HCD-BX6AV HCD-BX6AV/DX6AV is the Amplifier, CD player, Tape player and Tuner section in MHC-BX6AV/DX6AV. Model Name Using Similar Me
2、chanismHCD-BX2/DX2 CD Mechanism TypeEXL-M7 Optical Pick-up NameOPTIMA-7 Model Name Using Similar MechanismHCD-RXD6AV Tape Transport Mechanism TypeCWL-44-RR CD Section Tape deck Section Continued on next page AUDIO POWER SPECIFICATIONS: (US model only) POWER OUTPUT AND TOTAL HARMONIC DISTORTION: with
3、 6 ohm loads both channels driven, from 120-10,000 Hz; rates 10 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to rated output. Amplifier section US model Center Speaker: Continuous RMS power output (reference) 40 watts (6 ohms at 1 kHz, 10%
4、THD) Rear Speaker: Continuous RMS power output (reference) 40 + 40 watts (6 ohms at 1 kHz, 10% THD) Canadian model Front Speaker: Continuous RMS power output (reference) 60 + 60 watts (6 ohms at 1 kHz, 10% THD) Total harmonics distortion Less than 0.07% (6 ohms at 1 kHz, 30 W) Center Speaker: Contin
5、uous RMS power output (reference) 40 watts (6 ohms at 1 kHz, 10% THD) Rear Speaker: Continuous RMS power output (reference) 40 + 40 watts (6 ohms at 1 kHz, 10% THD) AEP, UK models Front Speaker: DIN power output (rated) 40 + 40 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference) 50
6、+ 50 watts (6 ohms at 1 kHz, 10% THD) Music power output (reference) 100 + 100 watts (6 ohms at 1 kHz, 10% THD) Center Speaker: DIN power output (rated) 25 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference) 35 watts (6 ohms at 1 kHz, 10% THD) Music power output (reference) 70 watts
7、 (6 ohms at 1 kHz, 10% THD) Rear Speaker: DIN power output (rated) 25 + 25 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference) 35 + 35 watts (6 ohms at 1 kHz, 10% THD) Music power output (reference) 70 + 70 watts (6 ohms at 1 kHz, 10% THD) Other models: The following measured at AC
8、120/240 V, 50/60 Hz Front Speaker: DIN power output (rated) 45 + 45 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference) 60 + 60 watts (6 ohms at 1 kHz, 10% THD) Center Speaker: DIN power output (rated) 30 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference) 40 watts
9、(8 ohms at 1 kHz, 10% THD) Rear Speaker: DIN power output (rated) 30 + 30 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference) 40 + 40 watts (6 ohms at 1 kHz, 10% THD) Inputs MD/VIDEO IN:voltage 250/450 mV, (phono jacks)impedance 47 kilohms DVD INPUT: FRONT IN:voltage 450 mV, (phono
10、jacks)impedance 47 kilohms REAR IN:voltage 450 mV, (phono jacks)impedance 47 kilohms CENTER IN:voltage 450 mV, (phono jacks)impedance 47 kilohms WOOFER IN:voltage 450 mV, (phono jacks)impedance 47 kilohms Outputs PHONES:accepts headphones of (stereo mini jack)8 ohms or more FRONT SPEAKER:accepts imp
11、edance of 6 to 16 ohms REAR SPEAKER:accepts impedance of 6 to 16 ohms CENTER SPEAKER:accepts impedance of 6 to 16 ohms WOOFER:Voltage 1 V, impedance 1 kilohms CD player section SystemCompact disc and digital audio system LaserSemiconductor laser (=780nm) Emission duration: continuous Laser outputMax
12、. 44.6 W* *This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture. Manufactured under license from Dolby Laboratories Licensing Corporation. Additionally licensed under Canadian patent 1,037,877. “Dolby”, the double-D
13、 symbol ; and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation. RadioFans.CN 收音机爱 好者资料库 2 ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEME
14、NT. NE REMPLACER CES COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. 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
15、 OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. Wavelength
16、780 790 nm Frequency response20 Hz 20 kHz (0.5 dB) Signal-to-noise ratioMore than 90 dB Dynamic rangeMore than 90 dB CD OPTICAL DIGITAL OUT (Square optical connector jack, rear panel) Wavelength660 nm Output Level18 dBm Tape player section Recording system4-track 2-channel stereo Frequency response4
17、0 13,000 Hz (3 dB), using Sony TYPE I cassette Tuner section FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range 87.5 108.0 MHz AntennaFM lead antenna Antenna terminals75 ohm unbalanced Intermediate frequency10.7 MHz AM tuner section Tuning range US, Canadian models:530 1,710 kHz (w
18、ith the interval set at 10 kHz) 531 1,710 kHz (with the interval set at 9 kHz) AEP, UK and Middle Eastern models: 531 1,602 kHz (with the interval set at 9 kHz) Other models:531 1,602 kHz (with the interval set at 9 kHz) 530 1,710 kHz (with the interval set at 10 kHz) AntennaAM loop antenna Antenna
19、terminalsExternal antenna terminal Intermediate frequency450 kHz General Power requirements US, Cnadian models:120 V AC, 60 Hz AEP, UK models:230 V AC, 50/60 Hz Australian model:220 240 V AC, 50/60 Hz Mexican model:120 V AC, 60 Hz Other models:110 120 V or 220 240 V AC, 50/ 60 Hz Adjustable with vol
20、tage selector Power consumption US model:160 watts Canadian model:180 watts AEP, UK models:160 watts Other models:160 watts Dimensions (w/h/d)Approx. 280 x 325 x 390 mm Mass US model:Approx. 9.2 kg Canadian model:Approx. 9.2 kg AEP, UK models:Approx. 9.2 kg Other model:Approx. 9.1 kg Supplied access
21、ories:AM loop antenna (1) FM lead antenna (1) Remote Commander (1) Speaker cords (2) Center speaker pads (4) Design and specifications are subject to change without notice. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. TAB
22、LE OF CONTENTS 1.SERVICING NOTES.3 2.GENERAL Location of Controls .4 Setting the Time .5 3.DISASSEMBLY.6 4.DIAGRAMS 4-1.Note for Printed Wiring Boards and Schematic Diagrams . 11 4-2.Schematic Diagram CD Section (1/4) . 12 4-3.Schematic Diagram CD Section (2/4) . 13 4-4.Schematic Diagram CD Section
23、(3/4) . 14 4-5.Schematic Diagram CD Section (4/4) . 15 4-6.Printed Wiring Boards CD Section . 16 4-7.Printed Wiring Boards MAIN Section . 17 4-8.Schematic Diagram MAIN Section (1/4) . 18 4-9.Schematic Diagram MAIN Section (2/4) . 19 4-10. Schematic Diagram MAIN Section (3/4) . 20 4-11. Schematic Dia
24、gram MAIN Section (4/4) . 21 4-12. Printed Wiring Boards PANEL Section . 22 4-13. Schematic Diagram PANEL Section . 23 4-14. Printed Wiring Boards AMP/POWER SUPPLY Section . 24 4-15. Schematic Diagram FRONT AMP Section . 25 4-16. Schematic Diagram CENTER/REAR AMP Section . 26 4-17. Schematic Diagram
25、 POWER SUPPLY Section . 27 5.EXPLODED VIEWS. 33 6.ELECTRICAL PARTS LIST. 39 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 solderi
26、ng 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. RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 SERVICING NOTES The laser diode in the optical pick-
27、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 repa
28、ir 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 d
29、iode emis- sion, observe from more than 30 cm away from the objective lens. MODEL IDENTIFICATION Rear Panel NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT ModelPower Voltage Indication US modelAC: 120 V - 60 Hz 160 W Canadian modelAC: 120 V - 60 Hz 180 W AEP, UK modelsAC: 230 V - 50/60 Hz
30、160 W Australian modelAC: 220 240 V - 50/60 Hz 160 W Mexican modelAC: 120 V - 50/60 Hz 160 W Other modelsAC: 110 120 V/220 240 V - 50/60 Hz 160 W Power Voltage Indication SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check before releasing the set to
31、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 ha
32、ving 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 milliammet
33、er. 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” indica- tion is 0.75 V, so analog meters must have an accurate low- voltage scale. The Simpson 250 and Sanwa SH-63Trd
34、 are ex- amples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suit- able. (See Fig. A) 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 The following cautio
35、n label is located inside the unit. RadioFans.CN 收音机爱 好者资料库 4 SECTION 2 GENERAL LOCATION OF CONTROLS Front View Rear View 1TIMER indicator 2I/1 button and indicator 3DISPLAY button 4SPECTRUM button 5GROOVE button and indicator 6FILE SELECT button 7PHONES jack 8ENTER button 9, . button 0DISC SKIP EX-
36、CHANGE button qax button qsDISC 1 button qdh H button and indicator qfDISC 2 button qgDISC 3 button qhX button qjZ OPEN/CLOSE button qk, + button 1FM ANTENNA jack or terminals 2AM ANTENNA terminals 3WOOFER OUT jack 4MD/VIDEO IN jacks 5DVD INPUT jacks 6CENTER SPEAKER terminals 7REAR SPEAKER terminals
37、 8FRONT SPEAKER terminals 9CD DIGITAL OUT (OPTICAL) connector 0VOLTAGE SELECTOR switch (E model) 1 2 3 4 5 6 7 8 9 ql w; wa wf wh ws wg wd qgqd 0qf qj qsqhqk qa wl eswke; ea edwj 9 0 13876542 qlPLAY MODE, DIRECTION button (US, Canadian, E, Australian models) PLAY MODE, PTY/DIRECTION button (AEP, UK
38、models) w;REPEAT, STEREO/MONO button waEDIT, TUNER MEMORY button wsVOLUME knob wdj J button wfREC button and indicator wgREC PAUSE button and indicator whCD SYNC button wjMD (VIDEO) button and indicator wkDOLBY PRO LOGIC button and indicator wlTAPE A/B button and indicator e;DVD 5.1CH button and ind
39、icator eaCD button and indicator esDSP button and indicator edTUNER/BAND button and indicator 5 9 1Press CLOCK/TIMER SET. The hour indication flashes. Step 3: Setting the time You must set the time before using the timer functions. The clock uses a 24-hour system on the European model, and a 12-hour
40、 system on other models. The 12-hour system is used for illustration purposes. 1 3,5 2,4 2Press . or repeatedly to set the hour. 3Press ENTER. The minute indication flashes. 4Press . or repeatedly to set the minute. 5Press ENTER. The clock starts working. Tip If you make a mistake, start over from s
41、tep 1. To change the time The previous explanation shows how to set the time while the power is off. To change the time while the power is on, do the following: 1 Press CLOCK/TIMER SET. 2 Press . or repeatedly to select SET CLOCK. 3 Press ENTER. 4 Perform steps 2 through 5 above. Notes The clock set
42、tings are canceled when you disconnect the power cord or if a power failure occurs. For MHC-BX6AV, you cannot set the time in the Power Saving Mode (see page 12). This section is extracted from instruction manual. 6 CD DOOR CD ASSY Note: Follow the disassembly procedure in the numerical order given.
43、 SECTION 3 DISASSEMBLY 1 Pull out the CD tray. 4 Push the CD tray. 2 five claws 3 CD door 4 four claws 6 wire (flat type) (22core) (CN705) 1 screw (M3 12) 1 screw (M3 12) 2 two screws (BVTP3 12) 3 8 CD assy 7 harness (6core) (CN304) 5 connector (CN703) CD TRAY (page 9) 7 FRONT PANEL SECTION MAIN BOA
44、RD 1 connector (CN301) 1 connector (CN502) 3 ten screws (BVTP3 10) 1 two connectors (CN302, 305) 4 screw (M3 12) 2 three screws (BVTP3 12) 5 front panel section 4 screw (M3 12) 4 connector (CN101) 6 main PC holder (L) 5 two claws 3 two screws (BVTP3 12) 3 two screws (BVTP3 12) 7 two claws 1 two conn
45、ectors 8 main PC holder (R) 9 MAIN board 2 harness (5core) (CN303) 8 FRONT BOARD AND CENTER/REAR BOARD SECTION, DC FAN (M505) 8 four screws (3 30) 3 four screws (BVTP3 10) 3 eight screws (BVTP3 10) 5 three screws (BVTP3 6) 5 three screws (BVTP3 6) qs FRONT board and CENTER/REAR board section 7 conne
46、ctor (CN505) 9 holder 4 6 rear cover 2 three screws (PTPWH4 10) 1 connector (CN501) 9 holder qa DC fan (M505) 0 main chassis holder MECH DECK (CWL-44-RR) 1 six screws (BVTP3 8) 2 harness 3 mech deck (CWL-44-RR) 9 CD TRAY 1 two screws (KTP3 8) 2 top cabinet 1 two screws (KTP3 8) 4 screw (BTP3 10) 6 s
47、crew (BTP3 10) 7 bracket 5 bracket 8 CD tray 3 wire (flat type) (5core) (CN06) DECORD BOARD 4 three screws (BTP2.6 6) 6 DECORD board 1 wire (flat type) (5core) (CN706) 2 wire (flat type) (15core) (CN701) 3 connector (CN707) 5 connector (CN702) 10 BASE UNIT CASSETTE LID 2 flange screw 3 UD-gear 4 screw (PTPWH3 8) 5 UD-cam 8 spring 7 spring 6 spring 1 two screws (PTPWH3 10) 9 base unit cassette door (Note: Four claws are used.) 1111 SECTION 4 DIAGR
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