JVC-HXC6-cs-sm 维修电路原理图.pdf

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1、SERVICE MANUALCOPYRIGHT 2005 Victor Company of Japan, LimitedNo.MB3662005/6COMPACT COMPONENT SYSYTEMMB36620056HX-C6Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)TABLE OF CONTENTS1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-215TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . .

4、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21CA-HXC6SP-HXC6SP-HXC6Area suffixJ - U.S.A.RadioFans.CN 收音机爱 好者资料库1-2 (No.MB366)SPECIFICATIONAmplifier section-CA-HXC6Speaker section-SP-HXC6Design and specifications are subject to change without notice.Output Po

5、werSUB WOOFER170 W per channel, min. RMS, driven into 6 at 63 Hz with no more than10% total harmonic distortion.MAIN SPEAKER80 W per channel, min. RMS, driven into 4 at 1 kHz with no more than10% total harmonic distortion.Audio input sensitivity/impedanceAUX400 mV/47 kUSBUSB Version 1.1Speakers/impe

6、danceSUB WOOFER6 - 16 MAIN SPEAKER4 - 8 TunerFM tuning range87.5 MHz - 108.0 MHzAM tuning range530 kHz - 1 710 kHzCD playerCD capacity5 discsDynamic range87 dBSignal-to-noise ratio90 dBWow and flutterImmeasurableMP3 recording formatMPEG 1/2 Audio Layer 3Max. Bit rate320 kbpsGeneralPower requirementA

7、C 120 V , 60 HzPower consumption90 W/110 VA (at operation)11 W (on standby; with power saving off-Normal mode)1.2 W (on standby; with power saving on-Eco mode)Dimensions (W/H/D) (approx.)175 mm 373 mm 389 mm (6 15/16 in. 14 11/16 in. 15 3/8 in.)Mass (approx.)9.8 kg (21.6 lbs)TypeSpeaker SystemsSubwo

8、ofer 16 cm (6 5/16 in.) cone 1Woofer16 cm (6 5/16 in.) cone 1Mid range7 cm (2 13/16 in.) cone 1Tweeter2 cm (13/16 in.) piezo 1Power handling capacitySubwoofer340 (170 + 170) WMain speaker160 (80 + 80) WImpedanceSubwoofer6 Main speaker4 Frequency rangeSubwoofer25 Hz - 1 000 HzMain speaker50 Hz - 20 0

9、00 HzSound pressure levelSubwoofer73 dB/WmMain speaker82 dB/WmDimensions (W/H/D) (approx.)295 mm 452 mm 387 mm (11 5/8 in . 17 13/16 in . 15 1/4 in.)Mass (approx.)8.6 kg (19.0 lbs) eachRadioFans.CN 收音机爱 好者资料库(No.MB366)1-3SECTION 1PRECAUTION1.1Safety Precautions(1) This design of this product contain

10、s special hardware andmany circuits and components specially for safety purpos-es. For continued protection, no changes should be madeto the original design unless authorized in writing by themanufacturer. Replacement parts must be identical tothose used in the original circuits. Services should be

11、per-formed by qualified personnel only.(2) Alterations of the design or circuitry of the product shouldnot be made. Any design alterations of the product shouldnot be made. Any design alterations or additions will voidthe manufacturers warranty and will further relieve themanufacture of responsibili

12、ty for personal injury or propertydamage resulting therefrom.(3) Many electrical and mechanical parts in the products havespecial safety-related characteristics. These characteris-tics are often not evident from visual inspection nor can theprotection afforded by them necessarily be obtained by us-i

13、ng replacement components rated for higher voltage, watt-age, etc. Replacement parts which have these specialsafety characteristics are identified in the Parts List of Ser-vice Manual. Electrical components having such featuresare identified by shading on the schematics and by ( ) onthe Parts List i

14、n the Service Manual. The use of a substitutereplacement which does not have the same safety charac-teristics as the recommended replacement parts shown inthe Parts List of Service Manual may create shock, fire, orother hazards.(4) The leads in the products are routed and dressed with ties,clamps, t

15、ubings, barriers and the like to be separated fromlive parts, high temperature parts, moving parts and/orsharp edges for the prevention of electric shock and firehazard. When service is required, the original lead routingand dress should be observed, and it should be confirmedthat they have been ret

16、urned to normal, after reassem-bling.(5) Leakage shock hazard testingAfter reassembling the product, always perform an isola-tion check on the exposed metal parts of the product (an-tenna terminals, knobs, metal cabinet, screw heads,headphone jack, control shafts, etc.) to be sure the productis safe

17、 to operate without danger of electrical shock.Do notuse a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet. Using aLeakage Current Tester, measure the leakage currentfrom each exposed metal parts of the cabinet, particular-ly any exposed metal part hav

18、ing a return path to thechassis, to a known good earth ground. Any leakage cur-rent must not exceed 0.5mA AC (r.m.s.). Alternate check methodPlug the AC line cord directly into the AC outlet. Use anAC voltmeter having, 1,000 per volt or more sensitivityin the following manner. Connect a 1,500 10W re

19、sistorparalleled by a 0.15F AC-type capacitor between an ex-posed metal part and a known good earth ground.Measure the AC voltage across the resistor with the ACvoltmeter. Move the resistor connection to each exposed metalpart, particularly any exposed metal part having a returnpath to the chassis,

20、and measure the AC voltage acrossthe resistor. Now, reverse the plug in the AC outlet andrepeat each measurement. Voltage measured any mustnot exceed 0.75 V AC (r.m.s.). This corresponds to 0.5mA AC (r.m.s.). 1.2Warning(1) This equipment has been designed and manufactured tomeet international safety

21、 standards.(2) It is the legal responsibility of the repairer to ensure thatthese safety standards are maintained.(3) Repairs must be made in accordance with the relevantsafety standards.(4) It is essential that safety critical components are replacedby approved parts.(5) If mains voltage selector i

22、s provided, check setting for localvoltage.1.3CautionBurrs formed during molding may be left over on some partsof the chassis. Therefore, pay attention to such burrs in the case of pre-forming repair of this system.1.4Critical parts for safetyIn regard with component parts appearing on the silk-scre

23、enprinted side (parts side) of the PWB diagrams, the parts that areprinted over with black such as the resistor ( ), diode ( )and ICP ( ) or identified by the mark nearby are criticalfor safety. When replacing them, be sure to use the parts of thesame type and rating as specified by the manufacturer

24、. (This regulation dose not Except the J and C version)Good earth groundPlace this probe on each exposedmetal part.AC VOLTMETER(Having 1000 ohms/volts,or more sensitivity)1500 10W0.15 F AC TYPE1-4 (No.MB366)1.5Importance administering point on the safetyCaution: For continued protection against risk

25、 of fire,replace only with same type 6.3 A/250 V for RFS1,6.3 A/250 V for RFS05 and RFS06, 8 A/250 V forRFS07 and RFS08, 5 A/250 V for RFS09.This symbol specifies type of fast operating fuse.Precaution: Pour eviter risques de feux, remplacezle fusible de surete de RFS1 comme le meme typeque 6,3 A/25

26、0 V, 6,3 A/250 V pour RFS05 et RFS06,8 A/250 V pour RFS07 et RFS08, et 5 A/250V pourRFS09.Ce sont des fusibles suretes qui functionnes rapide.P/T board (Forward side) Main board (Forward side) RFS1RFS09RFS06RFS05RFS07RFS08(No.MB366)1-5SECTION 2SPECIFIC SERVICE INSTRUCTIONSThis service manual does no

27、t describe SPECIFIC SERVICE INSTRUCTIONS.1-6 (No.MB366)SECTION 3DISASSEMBLY3.1Main body section3.1.1Removing the metal cover (See Figs.1 to 3)(1) From the back side of the main body, remove the threescrews A attaching the metal cover. (See Fig.1.)(2) From the both sides of the main body, remove the

28、sixscrews A attaching the metal cover. (See Figs.2 and 3.)(3) Remove the metal cover from the main body while liftingthe rear section of the metal cover in the direction of the ar-row. (See Figs.2 and 3.)Fig.1Fig.2Metal coverAAAMetal coverAA(No.MB366)1-7Fig.3Metal coverAA1-8 (No.MB366)3.1.2Removing

29、the front panel assembly (See Figs.4 to 7) Remove the metal cover.(1) From the right side of the main body, remove the spacer fix-ing the card wire and remove the card wire from the sec-tions a. (See Fig.4.)Reference:When reassembling, pass the card wire through the sec-tions a as before. (See Fig.4

30、.)(2) From the both sides of the main body, remove the fourscrews B and two screws C attaching the front panel as-sembly. (See Figs.4 and 5.)(3) From the top side of the main body, disconnect the cardwire from the connector FW101 on the FL board. (SeeFig.4.)(4) Disconnect the wire from the connector

31、 AW102 on the am-plifier board. (See Fig.6.)(5) From the both and bottom sides of the main body, releasethe joints (b, c) and remove the front panel assembly fromthe main body in the direction of the arrow. (See Figs.4 to7.)Reference:Remove the main board from the connectors (FW302, FW303,FW304) on

32、the volume board of the front panel assembly atthe same time. (See Fig.6.)Fig.4Fig.5Front panel assemblySpacerbaCBFront panel assemblybCB(No.MB366)1-9Fig.6Fig.7Front panel assemblyAW102Amplifier boardFW303FW304FW302Main boardVolume boardFW101FL boardFront panel assemblyc1-10 (No.MB366)3.1.3Removing

33、the tuner (See Figs.8 and 9.) Remove the metal cover.(1) From the left side of the main body, disconnect the cardwire from the connector on the tuner. (See Fig.8.)(2) From the back side of the main body, remove the twoscrews D attaching the tuner to the rear panel. (See Fig.9.)Fig.8Fig.9TunerConnect

34、orRear panelDTuner(No.MB366)1-113.1.4Removing the fan motor (See Figs.10 and 11) Remove the metal cover.(1) From the top side of the main body, disconnect the wirefrom the connector FAN101 on the amplifier board. (SeeFig.10.)(2) From the back side of the main body, remove the twoscrews E attaching t

35、he fan motor to the rear panel. (SeeFig.11.)(3) Take out the fan motor from the main body.Fig.10Fig.11Amplifier boardFAN101Fan motor Fan motorERear panel1-12 (No.MB366)3.1.5Removing the rear panel (See Fig.12) Remove the metal cover.(1) From the back side of the main body, remove the twelvescrews F

36、attaching the rear panel.(2) Remove the sections d toward this side and remove therear panel.Fig.123.1.6Removing the amplifier board (See Fig.13) Remove the metal cover and rear panel.(1) From the top side of the main body, disconnect the wire ofthe fan motor from the connector FAN101 on the amplifi

37、erboard.(2) Disconnect the wire from the connector FAN102 on theamplifier board and remove the wire from the slot e.(3) Disconnect the wire from the connector AW102 on the am-plifier board.(4) Disconnect the parallel wire from the connector CW108 onthe amplifier board and remove the parallel wire fr

38、om theslot e.(5) Disconnect the card wire from the connector AW101 on theamplifier board and remove the card wire from the slot f.(6) Remove the card wire of the tuner from the slot f.Reference: Remove the tuner as required. When connecting the each wire, pass them throughthe slots (e, f) as before.

39、(7) Remove the screw G and take out the amplifier board fromthe main body.Fig.13Rear panelFFdAmplifier boardFAN101Card wire (for the tuner)AW101FAN102CW108AW102Gef(No.MB366)1-133.1.7Removing the power amplifier ICs (See Figs.14 to 16) Remove the metal cover, rear panel and amplifier board.(1) From t

40、he forward side of the amplifier board, remove thefour screws H and screw J attaching the power amplifierICs to the heat sink. (See Figs.14 and 15.)(2) From the reverse side of the amplifier board, remove thethree screws K attaching the heat sink. (See Fig.16.)(3) Remove the soldered sections (g, h,

41、 j) and remove thepower amplifier ICs from the forward side of the amplifierboard. (See Fig.16.)Fig.14Fig.15Fig.16Amplifier boardHHeat sinkPower amplifier IC (AIC01)Amplifier boardHJHeat sinkPower amplifier IC (PIC021)Power amplifier IC (AIC02)Amplifier boardKgjh1-14 (No.MB366)3.1.8Removing the 5CD

42、changer mechanism assembly (See Figs.17 to 22) Remove the metal cover, rear panel and amplifier board.(1) From the top side of the main body, disconnect the cardwire from the connector FW101 on the FL board of the frontpanel assembly. (See Fig.17.)(2) Remove the spacer and remove the card wire from

43、the sec-tions k on the shield. (See Fig.17.)(3) From the right side of the main body, remove the spacerand remove the card wires from the sections m of theshield. (See Fig.18.)(4) From the both sides of the main body, remove the fourscrews M and remove the shield from the main body. (SeeFigs.18 and

44、19.)(5) From the both sides of the main body, remove the fourscrews N and remove the 5CD changer mechanism as-sembly from the main body in the direction of the arrow.(See Figs.20 and 21.)(6) From the top side of the 5CD changer mechanism assem-bly, remove the two screws P and two screws Q and re-mov

45、e the base 1 and base 2. (See Fig.22.)(7) From the bottom side of the 5CD changer mechanism as-sembly, disconnect the wire from the connector CW104 onthe mechanism control board. (See Fig.22.)Reference:When the resolution of 5CD changer mechanism assembly isdone sequentially, release the claws n of

46、the tray panel and re-move the five tray panels from the 5CD changer mechanismassembly. (See Fig.22.)Note:When releasing the claws n, take care not to break them. (SeeFig.22.)Fig.17Fig.18SpacerShieldkFW101FL boardFront panel assemblyShieldSpacermmM(No.MB366)1-15Fig.19Fig.20Fig.21Fig.22ShieldM5CD cha

47、nger mechanism assemblyN5CD changer mechanism assemblyNBase 2Base 1QPQP5CD changer mechanism assemblyTray panelsnCW104Mechanism control boardn1-16 (No.MB366)3.1.9Removing the power transformer (See Fig.23) Remove the metal cover, rear panel, amplifier board and 5CDchanger mechanism assembly.(1) From

48、 the top side of the main body, disconnect the wirefrom the connector PW101 on the main board.(2) Remove the three screws R attaching the power transform-er on the bottom chassis.(3) Take out the power transformer.3.1.10 Removing the main board (See Figs.23 and 24) Remove the metal cover, rear panel

49、, amplifier board and 5CDchanger mechanism assembly.(1) From the top side of the main body, remove the screw S at-taching the earth wire on the bottom chassis. (See Fig.23.)(2) From the forward side of the main board, disconnect thewire from the connector PW101. (See Figs.23 and 24.)(3) Disconnect t

50、he power cord from the connector PW103.(See Fig.24.)(4) Remove the screw T attaching the main board. (SeeFig.24.)(5) Disconnect the connectors (CW101, CW102, CW105) onthe main board from the front panel assembly in the direc-tion of the arrow. (See Fig.24.)Fig.23Fig.243.1.11 Removing the FL board (S