JVC-RX8012RSL-avr-sm维修电路原理图.pdf

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1、SERVICE MANUAL AUDIO/VIDEO CONTROL RECEIVER No.20979 May. 2001 COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD. RX-8010RBK RX-8012RSL RX-8010RBK/ RX-8012RSL Area Suffix Contents Safety precautions -1-2 Disassembly method -1-3 Adjustment method -1-9 Self-diagnose function -1-10 Description of major ICs -

2、1-1229 E EN Continental Europe Northern Europe CONTROL + - + - + - 231 564 897/P 0+1010 LINE DIF.ECTBOOSTEFFECT MENU ENTER SIZE ROOMBASS MODETESTCTR TONELIVENESS MIDNIGHT SOUND*SUBWFR *DIGITAL EQ*REAR L *REAR R *L/R BAL*CENTER MUTING CH/*LEVEL TV VOL PLAY STOP /REWFF/ EXIT *BAL L *BAL R VOLUME CATV/

3、DBS CONTROL TV/VIDEO MENU TEXT REC DISPLAY PAUSE PAUSE SET RETURNFM MODE100+ CONTROL A/V CONTROL RECEIVER CATV/DBSVCR 1TVAUDIO DSP MODEINPUTON/OFF DVD MUILTIDVD USB CD CDR TAPE/MD TV/DBSVIDEOPHONO FM/AM VCR 1VCR 2 SURROUNDANALOG/DIGITALSLEEP PTYPTY SEARCHPTY DISPLAY MODE EONTA / NEWS / INFODISPLAY M

4、ODEPTY SEARCH 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 MODE MEMORY PHONES 1 STANDBY USB AUDIO PUSH OPEN INPUT ANALOG/DIGITAL INPUT A

5、TT FM / AMUSB AUDIOTAPE / MDCDRCDPHONO LEVEL ADJUST AUDIO/VIDEO CONTROL RECEIVER LINE DIRECT BASS BOOST MASTER VOLUME D I G I T A L SURROUNDD I G I T A L 2 SOUCE NAME SOUCE NAME STANDBY/ON D I G I T A L RadioFans.CN 收音机爱 好者资料库 RX-8010RBK/ RX-8012RSL 1-2 1. This design of this product contains specia

6、l 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 perfo

7、rmed 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

8、 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 usin

9、g 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 i

10、n 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

11、, 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

12、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,

13、 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,

14、 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

15、 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 each exposed metal part, particularly any exp

16、osed 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 designe

17、d 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

18、 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 part

19、s 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

20、( ) 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-8010RBK/ RX-8012RSL 1-3 Remove the four screws A attaching

21、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, rem

22、ove the top cover. Remove the power cord stopper from the rear panel by moving it in the direction of the arrow. Remove the thirty one screws E 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. Re

23、moving the rear panel (See Fig.4) 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 at

24、taching 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

25、Audio board CN400 Main board Tie band D E F E F F Cord stopper C Front panel assembly Front panel assembly D Rear panel CN402 EEE RX-8010RBK/ RX-8012RSL 1-4 Prior to performing the following procedure, remove the top cover and the rear panel. Cut off the tie band fixing the harness. Extract the plas

26、tic rivet a, which prevents the PWB from pulling out, from the audio input board. Disconnect the connect CN501, CN243, CN205, CN381, CN361 on the DVD board. Disconnect the harness from connector CN721, CN722 and CN723. Disconnect the tuner board and audio board from connector CN101, CN102 and CN301

27、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. Removing each board connected to the rear side of the audio board (See Fig.5 to 11) Fig.5 Fig.6 Fig.8 Tie band CN101 CN723 CN361 CN38

28、1 CN243 Video board Tuner board CN501 S Video board CN721 CN722 CN205 Fig.9 CN301 CN206 CN416 CN244CN303 CN201 CN241 Audio board CN731 CN732 Fig.7 DVD board Audio input board Video audio board CN102 Plastic rivet a RX-8010RBK/ RX-8012RSL 1-5 Prior to performing the following procedure, remove the to

29、p cover and the rear panel. Removing the audio board (See Fig.12 and 13) 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 a

30、udio 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.10 Fig.11 power supply board Power / Fuse

31、board Relay board Audio board CN71 CN81 H CN814CN813 CN931/ 932 Power transformer G G Tie band CN831 Main board Fig.12 DSP board CN601 Video board S Video board Video audio board Fig.13 RX-8010RBK/ RX-8012RSL 1-6 Remove the two screws L attaching the heat sink from the rear side of main board. Disco

32、nnect the connect CN701, CN702, CN703, CN705 and CN706 on the main board. Remove the ten screws K and four screws L attaching the heat sink. 1. 2. 3. Removing the Heat sink (See Fig.15 and 16) Prior to performing the following procedure, remove the top cover, the rear panel and audio board. Cut off

33、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. Remove the four screws I and the two screws J attaching the main board. 1. 2. 3. 4. Removing the main board (See Fig.14)

34、 Fig.14 Main board rear side Heat sink L L KKK L L Fig.15 Fig.16 Main board I CN881 I J J J II Tie band CN811 Main board Heat sink CN701 CN703 CN705 CN702CN706 RX-8010RBK/ RX-8012RSL 1-7 Prior to performing the following procedure, remove the top cover and the front panel. Remove the screws b fixing

35、 a bonding ground. 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

36、 front bracket backward. Unsolder the three harnesses connected to the power supply board. 1. 2. 3. 4. 5. Removing the power supply board (See Fig.18 and 19) Prior to performing the following procedure, remove the top cover and the rear panel. Remove the screw N attaching the power / fuse board. Uns

37、older the power cord and other harnesses connected to the power / fuse board. 1. 2. Removing the power / fuse board (See Fig.17) Prior to performing the following procedures, remove the top cover. Unsolder the two harnesses connected to the power transformer. Disconnect the harness from connector CN

38、55 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.17) Fig.18 Fig.19 Headphone jack Tie band O O O Solder Hook Tie band Power supply board CN402 Fig.17 Power supply board CN55/ CN56 Power transformer

39、M Solder M Solder N Power / fuse board Power cord Power transformer board Power supply board Nut Headphone jack b RX-8010RBK/ RX-8012RSL 1-8 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 a

40、nd 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

41、 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.

42、 7. 8. Removing the system control board / power switch board (See Fig.20 to 22) Matters that require attention during replacement of IC400 (See Fig.24 and 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

43、can be used Fig.20 Fig.21 Fig.22 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 System control board reverse side System control board top view Resistance array IC

44、400 Fig.24 Fig.25 RX-8010RBK/ RX-8012RSL 1-9 Adjustment method 1.Set the volume control to minimum during this adjustment.(No signal Parallel Mode 96kHz sampling detect pin (RX Mode) H : fs=88.2kHz or more, L fs=54kHz or less. (Xtal Mode) H : XFS96=1, L : XFS96=0. Unlock NEVER guess or take chances

45、with electrical equipment of any kind it is better to be safe than sorry! Wall or obstructions 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

46、 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. Floor Spacing 15 cm or more Front Stand height 15 cm or more RX-8010RBK/ RX-8012R

47、SL RX-8010VIDEO input terminals (7) aMIDNIGHT MODE button (13) sSource selecting buttons and lamps (11) DVD MULTI, DVD, VCR 1, VCR 2, VIDEO, TV SOUND/DBS, PHONO, CD, CDR, TAPE/MD, USB AUDIO, FM/AM dSOURCE NAME buttons (16) fCONTROL UP 5/DOWN buttons gSETTING button (17 19, 22) hMASTER VOLUME control

48、 (12) jBASS BOOST button and lamp (14) * These buttons function only after pressing 10 keys on the remote control which are marked with an asterisk (*). Remote Control 1Display window (11) a. Remote control operation mode indicator b. Signal transmission indicator Lights up when transmitting the remote control signal. 2 bu