JVC-HXC6-cs-sm维修电路原理图.pdf

SERVICE MANUAL COPYRIGHT 2005 Victor Company of Japan, Limited No.MB366 2005/6 COMPACT COMPONENT SYSYTEM MB36620056 HX-C6 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 CA-HXC6SP-HXC6SP-HXC6 Area suffix J - U.S.A. RadioFans.CN 收音机爱 好者资料库 1-2 (No.MB366) SPECIFICATION Amplifier section-CA-HXC6 Speaker section-SP-HXC6 Design and specifications are subject to change without notice. Output PowerSUB WOOFER170 W per channel, min. RMS, driven into 6 at 63 Hz with no more than 10% total harmonic distortion. MAIN SPEAKER80 W per channel, min. RMS, driven into 4 at 1 kHz with no more than 10% total harmonic distortion. Audio input sensitivity/ impedance AUX400 mV/47 k USBUSB Version 1.1 Speakers/impedanceSUB WOOFER6 - 16 MAIN SPEAKER4 - 8 TunerFM tuning range87.5 MHz - 108.0 MHz AM tuning range530 kHz - 1 710 kHz CD playerCD capacity5 discs Dynamic range87 dB Signal-to-noise ratio90 dB Wow and flutterImmeasurable MP3 recording formatMPEG 1/2 Audio Layer 3 Max. Bit rate320 kbps GeneralPower requirementAC 120 V , 60 Hz Power 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 SystemsSubwoofer 16 cm (6 5/16 in.) cone 1 Woofer16 cm (6 5/16 in.) cone 1 Mid range7 cm (2 13/16 in.) cone 1 Tweeter2 cm (13/16 in.) piezo 1 Power handling capacitySubwoofer340 (170 + 170) W Main speaker160 (80 + 80) W ImpedanceSubwoofer6 Main speaker4 Frequency rangeSubwoofer25 Hz - 1 000 Hz Main speaker50 Hz - 20 000 Hz Sound pressure levelSubwoofer73 dB/Wm Main speaker82 dB/Wm Dimensions (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) each RadioFans.CN 收音机爱 好者资料库 (No.MB366)1-3 SECTION 1 PRECAUTION 1.1Safety Precautions (1) This design of this product contains special hardware and many circuits and components specially for safety purpos- es. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be per- formed by qualified personnel only. (2) Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. (3) Many electrical and mechanical parts in the products have special safety-related characteristics. These characteris- tics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by us- ing replacement components rated for higher voltage, watt- age, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Ser- vice Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety charac- teristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. (4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassem- bling. (5) Leakage shock hazard testing After 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 product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet. Using a Leakage Current Tester, measure the leakage current from each exposed metal parts of the cabinet, particular- ly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage cur- rent must not exceed 0.5mA AC (r.m.s.). Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled 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 AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.). 1.2Warning (1) This equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage. 1.3Caution Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of pre- forming repair of this system. 1.4Critical parts for safety In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version) Good earth ground Place this probe on each exposed metal part. AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity) 1500 10W 0.15 F AC TYPE 1-4 (No.MB366) 1.5Importance administering point on the safety Caution: For continued protection against risk 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 for RFS07 and RFS08, 5 A/250 V for RFS09. This symbol specifies type of fast operating fuse. Precaution: Pour eviter risques de feux, remplacez le fusible de surete de RFS1 comme le meme type que 6,3 A/250 V, 6,3 A/250 V pour RFS05 et RFS06, 8 A/250 V pour RFS07 et RFS08, et 5 A/250V pour RFS09. Ce sont des fusibles suretes qui functionnes rapide. P/T board (Forward side) Main board (Forward side) RFS1 RFS09 RFS06 RFS05 RFS07 RFS08 (No.MB366)1-5 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.MB366) SECTION 3 DISASSEMBLY 3.1Main body section 3.1.1Removing the metal cover (See Figs.1 to 3) (1) From the back side of the main body, remove the three screws A attaching the metal cover. (See Fig.1.) (2) From the both sides of the main body, remove the six screws A attaching the metal cover. (See Figs.2 and 3.) (3) Remove the metal cover from the main body while lifting the rear section of the metal cover in the direction of the ar- row. (See Figs.2 and 3.) Fig.1 Fig.2 Metal cover A A A Metal cover A A (No.MB366)1-7 Fig.3 Metal cover A A 1-8 (No.MB366) 3.1.2Removing 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.) (2) From the both sides of the main body, remove the four screws 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 card wire from the connector FW101 on the FL board. (See Fig.4.) (4) Disconnect the wire from the connector AW102 on the am- plifier board. (See Fig.6.) (5) From the both and bottom sides of the main body, release the joints (b, c) and remove the front panel assembly from the main body in the direction of the arrow. (See Figs.4 to 7.) Reference: Remove the main board from the connectors (FW302, FW303, FW304) on the volume board of the front panel assembly at the same time. (See Fig.6.) Fig.4 Fig.5 Front panel assembly Spacer b a C B Front panel assembly b C B (No.MB366)1-9 Fig.6 Fig.7 Front panel assembly AW102 Amplifier board FW303 FW304 FW302 Main board Volume board FW101 FL board Front panel assembly c 1-10 (No.MB366) 3.1.3Removing the tuner (See Figs.8 and 9.) Remove the metal cover. (1) From the left side of the main body, disconnect the card wire from the connector on the tuner. (See Fig.8.) (2) From the back side of the main body, remove the two screws D attaching the tuner to the rear panel. (See Fig.9.) Fig.8 Fig.9 Tuner Connector Rear panel D Tuner (No.MB366)1-11 3.1.4Removing the fan motor (See Figs.10 and 11) Remove the metal cover. (1) From the top side of the main body, disconnect the wire from the connector FAN101 on the amplifier board. (See Fig.10.) (2) From the back side of the main body, remove the two screws E attaching the fan motor to the rear panel. (See Fig.11.) (3) Take out the fan motor from the main body. Fig.10 Fig.11 Amplifier board FAN101 Fan motor Fan motor E Rear panel 1-12 (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 twelve screws F attaching the rear panel. (2) Remove the sections d toward this side and remove the rear panel. Fig.12 3.1.6Removing 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 of the fan motor from the connector FAN101 on the amplifier board. (2) Disconnect the wire from the connector FAN102 on the amplifier 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 on the amplifier board and remove the parallel wire from the slot e. (5) Disconnect the card wire from the connector AW101 on the amplifier 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 through the slots (e, f) as before. (7) Remove the screw G and take out the amplifier board from the main body. Fig.13 Rear panel FF d Amplifier board FAN101 Card wire (for the tuner) AW101 FAN102 CW108 AW102 G e f (No.MB366)1-13 3.1.7Removing the power amplifier ICs (See Figs.14 to 16) Remove the metal cover, rear panel and amplifier board. (1) From the forward side of the amplifier board, remove the four screws H and screw J attaching the power amplifier ICs to the heat sink. (See Figs.14 and 15.) (2) From the reverse side of the amplifier board, remove the three screws K attaching the heat sink. (See Fig.16.) (3) Remove the soldered sections (g, h, j) and remove the power amplifier ICs from the forward side of the amplifier board. (See Fig.16.) Fig.14 Fig.15 Fig.16 Amplifier board H Heat sink Power amplifier IC (AIC01) Amplifier board HJ Heat sink Power amplifier IC (PIC021) Power amplifier IC (AIC02) Amplifier board K g j h 1-14 (No.MB366) 3.1.8Removing the 5CD 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 card wire from the connector FW101 on the FL board of the front panel assembly. (See Fig.17.) (2) Remove the spacer and remove the card wire from the sec- tions k on the shield. (See Fig.17.) (3) From the right side of the main body, remove the spacer and remove the card wires from the sections m of the shield. (See Fig.18.) (4) From the both sides of the main body, remove the four screws M and remove the shield from the main body. (See Figs.18 and 19.) (5) From the both sides of the main body, remove the four screws 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- move 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 on the mechanism control board. (See Fig.22.) Reference: When the resolution of 5CD changer mechanism assembly is done sequentially, release the claws n of the tray panel and re- move the five tray panels from the 5CD changer mechanism assembly. (See Fig.22.) Note: When releasing the claws n, take care not to break them. (See Fig.22.) Fig.17 Fig.18 Spacer Shield k FW101 FL board Front panel assembly Shield Spacer m m M (No.MB366)1-15 Fig.19 Fig.20 Fig.21 Fig.22 Shield M 5CD changer mechanism assembly N 5CD changer mechanism assembly N Base 2 Base 1 QP QP 5CD changer mechanism assembly Tray panels n CW104 Mechanism control board n 1-16 (No.MB366) 3.1.9Removing the power transformer (See Fig.23) Remove the metal cover, rear panel, amplifier board and 5CD changer mechanism assembly. (1) From the top side of the main body, disconnect the wire from 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, amplifier board and 5CD changer mechanism assembly. (1) From the top side of the main body,