JVC-RX7010RBK-avr-sm1维修电路原理图.pdf

SERVICE MANUAL AUDIO/VIDEO CONTROL RECEIVER No.20938 Apr. 2001 COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD. RX-7010RBK RX-7012RSL RX-7010RBK/RX-7012RSL Contents Safety precautions -1-2 Disassembly method -1-3 Adjustment method -1-8 Description of major ICs -1-9 19 As for RX-7012RSL the body is silver color EContinental Europe Area Suffix ENNorthern Europe D I G I T A L CONTROL + + + 231 564 897/P 0+1010 BASS BOOSTEFFECT MENU ENTER TEST+ REARL SOUND SUB WOOFER + REARR + MUTING CHTV VOL PLAY STOP /REWFF/ VOLUME CA TV/DBS CONTROL TV/VIDEO REC PAUSE PAUSE RETURNFM MODE100+ CONTROL A/V CONTROL RECEIVER RM-SRX7010R CATV/DBSVCRTVAUDIO DSP MODEINPUTON/OFF DVD MUILTIDVDCD TAPE/CDR TREBLE TV/DBSVCRPHONO FM/AM BASS SURROUNDANALOG/DIGIT ALSLEEP + CENTER TUNING + + PTYPTY+ PTY SEARCH DISPLAY DVDVCRTV SOUND/DBS ADJUST AUDIO/VIDEO CONTROL RECEIVER SETTING MASTER VOLUME CONTROL DOWNUP CDTAPE/CDR SOURCE NAME BASS BOOST INPUT ANALOG/DIGITAL SPEAKERS ON/OFF DSP MODE PHONES SURROUND ON/OFF FM/AM TUNING STANDBY FM/AM PRESETFM MODE MEMORY INPUT ATT FM/AM D I G I T A L D I G I T A L SURROUND DVD MULTI PHONO SOURCE NAME 12 COMPULINK Remote STANDBY/ON EONPTY SEARCHTA/NEWS/INFODISPLAY MODE RadioFans.CN 收音机爱 好者资料库 RX-7010RBK/RX-7012RSL 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-7010RBK/RX-7012RSL 1-3 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. Remove the power cord stopper from the rear panel by moving it in the direction of the arrow. Remove the twenty seven screws E attaching the each boards to the rear panel on the back of the body. Remove the four screws F attaching the rear panel on the back of the body. 1. 2. 3. Removing the rear panel (See Fig.4) Prior to performing the following procedure, remove the top cover. Disconnect the card wire from connector CN402 on the audio board and CN201 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. 1. 2. 3. 4. Removing the front panel assembly (See Fig.2 and 3) Fig.1 Fig.2 Fig.3 Fig.4 A 2 A 2 B Top cover C Power supply board Audio board CN402 Main board Tie band D E E FEF F Cord stopper C Front panel assembly Front panel assembly D Rear panel CN201 F EEEE RX-7010RBK/RX-7012RSL 1-4 Prior to performing the following procedure, remove the top cover and the rear panel. Cut off the tie band fixing the harness. Disconnect the DSP board from connector CN481 on the audio board. Disconnect the audio input board, DVD board Video board and the S video board from connector CN421, CN431,CN441 and CN461 on the audio board. Disconnect the tuner board from connector CN411 and CN412 on the audio board. 1. 2. 3. 4. Removing each board connected to the rear side of the audio board (See Fig.5 to 8) Fig.5 Fig.6 Fig.7 Fig.8 CN411 CN412 Tie band DSP board DVD board Video board Tuner board Audio input board DSP board CN481 CN441 CN431 CN421 CN481 CN421 CN431 CN441 CN411 CN412 Tie band CN421 CN431 CN441 Audio input board DVD board Video board Tuner board Audio board CN461 S Video board CN461 S Video board CN461 Tie band Tie band RX-7010RBK/RX-7012RSL 1-5 Prior to performing the following procedure, remove the top cover and the rear panel. Removing the audio board (See Fig.9) Disconnect the card wire from connector CN402 on the audio board. Disconnect the relay board from the audio board and the power supply board. (CN291,CN491) Disconnect the harness from connector CN473, CN471, CN472, CN403 and CN385. Remove the three screws G attaching the audio board assembly. Remove the screw H attaching the audio board assembly. 1. 2. 3. 4. 5. Remove the ten screws K and four screws L attaching the heat sink. Remove the two screws L attaching the heat sink from the rear side of main board. 1. 2. Removing the Heat sink (See Fig.11 to 12) Prior to performing the following procedure, remove the top cover, the rear panel and audio board. Disconnect the harness from connector CN241 and CN203 on the power supply board respectively. Remove the four screws I and the two screws J attaching the main board. In case where the sub board is installed,detach it after removing the connectors CN208,CN209 and CN210 as well as the screw J. 1. 2. 3. Removing the main board (See Fig.10) Fig.9 Fig.10 Fig.11Fig.12 power supply board Power / Fuse board Relay board CN473 Audio board Main board rear side Main board Heat sink CN291 CN203 CN491 H G CN471 CN403 CN402 CN472 Power transformer G G CN241I I I I J J L L KKK L L J CN208 CN209 CN210 CN385 RX-7010RBK/RX-7012RSL 1-6 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.13) Prior to performing the following procedures, remove the top cover. Unsolder the two harnesses connected to the power transformer. Disconnect the harness from connector CN251 and unsolder the harnesses connected to FW201 on the power transformer board. Remove the four screws M attaching the power transformer. 1. 2. 3. Removing the power transformer (See Fig.13) 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 harness connected to connector CN241,CN201,CN203 and CN291 on the power transformer board (If necessary, cut off the band fixing the harness on the side of the base chassis). 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.14 and 15) Fig.13 Fig.14 Fig.15 Power supply board CN251 Power transformer M CN241 Solder M Solder Solder N Power / fuse board Power cord Power supply board Nut Headphone jack Headphone jack Tie band Solder O O O Solder CN201 CN291 Hook Power transformer board FW201 CN203 RX-7010RBK/RX-7012RSL 1-7 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. Disconnect the harness from connector CN714 on the power switch board. Remove the six screws Q attaching the system control board on the back of the front panel. On the back of the front panel, release the eight joints by pushing the joint tabs inward. Remove the operation switch panel toward the front. Release the two hook attaching the system control board. 1. 2. 3. 4. 5. 6. Removing the system control board / power switch board (See Fig.16 to 18) Fig.16 Fig.17 Fig.18 Front panel assembly Nut Volume knob System control board Power switch board Q Q CN714 P Joint Joint JointJointJointJoint Hook Hook Operation switch panel JointJoint RX-7010RBK/RX-7012RSL 1-8 Adjustment method 1.Set the volume control to minimum during this adjustment.(No signal NEVER guess or take chances with electrical equipment of any kind it is better to be safe than sorry! Floor Front Spacing 15 cm or more Wall or obstructions Stand height 15 cm or more RX-7010RBK/ RX-7012RSL Caution: Proper Ventilation To avoid risk of electric shock and fire and to protect from damage. Locate the apparatus as follows: Front:No obstructions open spacing. Sides:No obstructions in 10 cm from the sides. Top:No obstructions in 10 cm from the top. Back:No obstructions in 15 cm from the back Bottom:No obstructions, place on the level surface. In addition, maintain the best possible air circulation as illustrated. RX-7010o 8 DVDVCRTV SOUND/DBS ADJUST AUDIO/VIDEO CONTROL RECEIVER SETTING MASTER VOLUME CONTROL DOWNUP CDTAPE/CDR SOURCE NAME BASS BOOST INPUT ANALOG/DIGITAL SPEAKERS ON/OFF DSP MODE PHONES SURROUND ON/OFF FM/AM TUNING STANDBY FM/AM PRESETFM MODE MEMORY INPUT ATT FM/AM D I G I T A L D I G I T A L SURROUND 12 COMPULINK Remote DVD MULTI PHONO SOURCE NAME STANDBY/ON EONPTY SEARCHTA/NEWS/INFODISPLAY MODE y Buttons on the Remote ControlRemote Control Operation Mode FM/AM TUNER CDCD PHONOPHONO TAPE/CDRTAPE DVDDVD DVD MULTIDVD Buttons on the Remote ControlRemote Control Operation Mode TV/DBS TV VCRVCR CATV/DBS CONTROLDBS CONTROL Current setting or VCR or TAPE or CDDSC SOUNDSOUND Ex.: When you press CD button Front Panel 1STANDBY/ONbutton and STANDBY lamp (10) 2FM/AM TUNING 5/ buttons (18) 3FM/AM PRESET 5/ buttons (18) 4FM MODE button (19) 5MEMORY button (18) 6Display (10) 7Remote sensor (9) 8RDS operation buttons (20 21) EON, PTY SEARCH, TA/NEWS/INFO, DISPLAY MODE 9PHONES jack (11) pSURROUND ON/OFF button (26, 29) qDSP MODE button (27 29) wINPUT ANALOG/DIGITAL button (17) INPUT ATT button (12) eSPEAKERS ON/OFF 1 button (11) SPEAKERS ON/OFF 2 button (11) rBASS BOOST button (12) tSource selecting buttons (10, 16) DVD MULTI, DVD, VCR, TV SOUND/DBS, PHONO, CD, TAPE/CDR, FM/AM ySOURCE NAME buttons (13) The TV SOUND/DBS button and TAPE/CDR button also function as the SOURCE NAME button. uADJUST button (12, 13, 26 28, 30) iCONTROL UP 5/DOWN buttons oSETTING button (14 16) ;MASTER VOLUME control (11) Remote Control 1Display window (See below) * a: Remote control operation mode indicator b: Signal transmission indicator Lights up when transmitting the remote control signal. 2buttons (10, 34 38) CATV/DBS, VCR, TV, AUDIO 3Source selecting buttons (10, 17) * DVD, DVD MULTI, CD, FM/AM, TV/DBS, VCR, TAPE/CDR, PHONO 4BASS +/ buttons (12) 5SURROUND ON/OFF button (26, 29) 6DSP MODE button (27 29) 7BASS BOOST button (12) 8SOUND button (12, 26 28, 30) * 9MUTING button (12) pCATV/DBS CONTROL button (36) * qTV/VIDEO button (34, 35)