JVC-RX9010VBK-avr-sch维修电路原理图.pdf

SERVICE MANUAL AUDIO/VIDEO CONTROL RECEIVER No.20940 Apr. 2001 COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD. RX-9010VBK RX-9010VBK JU.S.A. Area Suffix Contents Safety precautions -1-2 Importance administering point on the safety - 1-3 Disassembly method -1-4 Adjustment method -1-10 Self-diagnose function -1-11 Description of major ICs -1-13 30 D I G I T A L CONTROL DOWNUP EFFECTSETTING DIGITAL EQ TV SOUND/DBSVIDEOVCR 2VCR 1DVDDVD MULTI MIDNIGHT MODEDSP MODE S-VIDEOVIDEO VIDEO LAUDIOR SURROUND ON/OFF SUBWOOFER OUT ON/OFF SPEAKERS ON/OFF FM/AM TUNINGFM/AM PRESETFM MODEMAIN ROOM ON/OFFSUB ROOM ON/OFFSUB ROOM CONTROLDIMMER MEMORY 2 PHONES STANDBY POWER USB AUDIO INPUT ANALOG/DIGITAL INPUT ATT FM / AMUSB AUDIOTAPE / MDCDRCDPHONO LEVEL ADJUST RX-9010VAUDIO/VIDEO CONTROL RECEIVER LINE DIRECT BASS BOOST MASTER VOLUME D I G I T A L SURROUNDD I G I T A L 1 SOURCE NAME SOURCE NAME MAIN ROOM SUB ROOM CHANNEL TV/VIDEO MUTING DVD ON/OFFON/OFFPOWERPOWER STANDBY TV/CATV/DBSVCR1 ON DVD MULTICD CDR PHONO TAPE/MD USB AUDIO ANALOG/DIGITALLBALANCEREFFECT ROOM SIZESOUND TEST LINE DIRECTMIDNIGHT MODE SLEEPDIMMER FM MODE DSPBASS BOOSTSURROUND RETURN100+ ON/OFFMODE CENTER TONE INPUT LIVENESS SET MENU DVD MENU EXIT TEXT DISPLAY 123 456 789 10 +10 0 TV VOL VOLUME TUNING STOPPAUSE FF/ /REW REC PLAY DOWNUP RM-SRX9010J REMOTE CONTROL A/V CONTROL RECEIVER VCR 1VCR 2 FM/AMVIDEOTV/DBS SUB ROOMMAIN ROOM SUB ROOMMAIN ROOM CONTROL TV CATV/ DBS CENTERSUBWFR LEVEL+ LEVEL REARL DIGITAL EQ REARR RadioFans.CN 收音机爱 好者资料库 RX-9010VBK 1-2 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. 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 performed 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 characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service 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 characteristics 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 re-assembling. 5. Leakage currnet check (Electrical shock hazard testing) After re-assembling the product, always perform an isolation check on the exposed metal parts of the product (antenna 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, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current 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 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor between an exposed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to eachexposed metal part, particularly any exposed metal part having a return path to the chassis, and meausre 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. 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. 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 ! Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. 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. (Except the JC version) http:/getMANUAL.com RadioFans.CN 收音机爱 好者资料库 RX-9010VBK 1-3 Caution: For continued protection against risk of fire, replace only with same type 6.3A/125V for F201, 2A/125V for F202 and F203. This symbol specifies type of fast operating fuse. Precaution: Pour eviter risques de feux, remplacez le fusible de surete de F201 comme le meme type que 6.3A/125V, et 2A/125V pour F202 et F203. Ce sont des fusibles suretes qui functionnes rapide. Importance administering point on the safety LVA10222-A3 LVA10222-A6 EP1 FC1 FC2 PW17 PW18 PW19 PW20 PW26 PW30 R1 TA1 TA2 B3141 B3142 B3143 B3144 B3145 B3146 B3147 B3148 B3151 B3152 B3149 B3150 CN55 CN56 CN811 B3191 D67 FC61 FC62 FC63 FC64 R61 B3192 RY62 RY63 111 112 113 121 122 123 131 132 133 134 6.3A-125V 2A-125V 2A-125V RX-9010VBK 1-4 Remove the four screws A attaching the top cover on both sides of the body. Remove the three screws B on the back of the body. Remove the top cover from behind in the direction of the arrow while pulling both sides outward. 1. 2. 3. Disassembly method Removing the top cover (See Fig.1) Prior to performing the following procedure, remove the top cover. Disconnect the card wire from connector CN400 on the audio board and CN402 on the power supply board in the front panel assembly. Cut off the tie band fixing the harness. Remove the three screws C attaching the front panel assembly. Remove the four screws D attaching the front panel assembly on the bottom of the body. Detach the front panel assembly toward the front. Remove the screw a fixing a bonding ground. 1. 2. 3. 4. 5. Removing the front panel assembly (See Fig.2 to 4) Fig.1 Fig.2 Fig.3 A 2 A 2 B Top cover C Power supply board Audio board CN400 Main board Tie band D C Front panel assembly Front panel assembly D CN402 Fig.4 Front panel assembly Headphone jack a RX-9010VBK 1-5 Prior to performing the following procedure, remove the top cover and the rear panel. Cut off the tie band fixing the harness. Disconnect the connect CN501, CN243, CN205, CN381, CN361 on the DVD board. Disconnect the harness from connector CN721, CN722 and CN723 on the main board. Disconnect the harness from connector CN1 on the antenna unit and remove the antenna unit. Disconnect the harness from connector CN491 on the relay board. Disconnect the tuner board and audio board from connector CN101 and CN301 on the audio board. Pull out the video audio board, video board, S-video board. Disconnect the DSP board from connector CN601 on the audio board. 1. 2. 3. 4. 5. 6. 7. 8. Removing each board connected to the rear side of the audio board (See Fig.6 to 12) Prior to performing the following procedure, remove the top cover. Remove the power cord stopper from the rear panel by moving it in the direction of the arrow. Remove the thirty five screws E and a hexagon nut b attaching the each boards to the rear panel on the back of the body. Remove the three screws F attaching the rear panel on the back of the body. 1. 2. 3. Removing the rear panel (See Fig.5) Fig.6 Fig.7 Tie band CN723 CN361 CN381CN243CN501 CN721CN722 CN205 Fig.8 DVD board CN1 Main board Antenna unit CN491 Relay board Fig.5 E FEF F Cord stopper Rear panel EEEb DVD board RX-9010VBK 1-6 Prior to performing the following procedure, remove the top cover and the rear panel. Removing the audio board (See Fig.13 to 14) Disconnect the harness from connector CN813 and CN814 on the main board. Disconnect the card wire from connector CN931 and CN932 on the audio board. Cut off the tie band fixing the harness. Disconnect the relay board from the audio board and the power supply board. (CN71,CN81) Disconnect the card wire from connector CN831 on the main board. Remove the three screws G attaching the audio board assembly. Remove the screw H attaching the audio board assembly. 1. 2. 3. 4. 5. 6. 7. Fig.11Fig.12 power supply board Power / Fuse board Relay board Audio board CN71 CN81 H CN814CN813 CN931/ 932 Power transformer G G Tie band CN831 Main board Fig.13 DSP board CN601 Video board S Video board Video audio board Fig.14 Fig.9 CN101 Video board Tuner board S Video board Fig.10 CN301 CN206 CN416 CN244CN303 CN201 CN241 Audio board Audio input board Video audio board RX-9010VBK 1-7 Remove the two screws L attaching the rear side of main board from the heat sink . Remove the ten screws K attaching each amp board from the heat sink. 1. 2. Removing the Amp board (See Fig.16 to 17) Prior to performing the following procedure, remove the top cover, the rear panel and audio board. Cut off the tie band fixing the harness. Disconnect the harness from connector CN811 on the power supply board respectively. Disconnect the harness from connector CN881 on the main board. NOTE: In order to prevent the wire of CN881 from touching to the wire of CN813,the wire of CN881 is secured by tape. This is one of the preventive measures for possible troubles of the remote controller. When assembling the unit,secure the wire of CN881 with the original tape so as to prevent both wire from touching each other. Remove the four screws I and the two screws J attaching the main board. 1. 2. 3. 4. Removing the main board (See Fig.15) Fig.15 Main board rear side Heat sink K KK L L Fig.16 Fig.17 Main board I CN881 I J J J II Tie band CN811 CN813 Heat sink RX-9010VBK 1-8 Prior to performing the following procedure, remove the top cover and the front panel. Remove the one nut attaching the headphone jack of the power supply board on the front side of the body. Disconnect the card wire from connector CN402 on the power supply board. Remove the three screws O attaching the power supply board and pull out the power supply board from the front bracket backward. Unsolder the three harnesses connected to the power supply board. 1. 2. 3. 4. Removing the power supply board (See Fig.19 to 20) Prior to performing the following procedure, remove the top cover and the rear panel. Remove the screw N attaching the power / fuse board. Unsolder the power cord and other harnesses connected to the power / fuse board. 1. 2. Removing the power / fuse board (See Fig.18) Prior to performing the following procedures, remove the top cover. Unsolder the two harnesses connected to the power transformer. Disconnect the harness from connector CN55 and CN56 on the power transformer board. Remove the four screws M attaching the power transformer. 1. 2. 3. Removing the power transformer (See Fig.18) Fig.19 Fig.20 Power supply board Nut Headphone jack Headphone jack Tie band O O O Solder Hook Tie band Power supply board CN402 Fig.18 Power supply board CN55 / 56 Power transformer M Solder M Solder N Power / fuse board Power cord Power transformer board RX-9010VBK 1-9 Prior to performing the following procedure, remove the top cover and the front panel assembly. Pull out the volume knob on the front side of the front panel and remove the nut attaching the system control board. Remove the two screws P attaching the power switch board. Remove the two screws Q attaching the switch board. Remove the cords from the three hooks a. Remove the eight screws R attaching the system control board on the back of the front panel. On the back of the front panel, release the four joints by pushing the joint tabs inward. Remove the operation switch panel toward the front. Disconnect the harness from connector CN420 and CN422 on the system control board. Release the two hooks b attaching the system control board. 1. 2. 3. 4. 5. 6. 7. 8. Removing the system control board / power switch board (See Fig.21 to 23) Matters that require attention during replacement of IC400 (See Fig.24 to 25) In case where there is a resistance array: Both onetime IC and mask IC can be used In case where there is no resistance array: Only mask IC can be used System control board reverse side System control board top view Fig.21 Fig.22 Fig.23 Front panel assembly Nut Volume knob System control board Power switch board RR CN422 P Joint JointJoint Joint Hook b Hook b Operation switch panel Q CN420 Switch board R Hook a Cords Resistance array IC400 Fig.24 Fig.25 RX-9010VBK 1-10 Adjustment method 1. Prior to turning the power ON, fully turn the adjusting resistor (VR787(Lch),VR788(Rch) counterclockwise direction and connect the DC voltmeter to the measuring terminal(B2204-B2205(Lch) , B2213-2214(Rch). 2. Set the surround mode OFF. 3. Adjust the resistor so that the measured value becomes 2mV immediately after turning the power ON. 4. When the idling current has been stable (about 30 minutes after the power is turned ON), confirm that the measured value falls within 1.0mV 10mV(2.3mV). Power amplifier section B2213, B2214 (Rch) VR787 (Lch) VR788 (Rch) Heat sink Adjustment of idlin