JVC-RXE100SL-avr-sm 维修电路原理图.pdf

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1、SERVICE MANUALAUDIO/VIDEO CONTROL RECEIVERNo.20955May 2001COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.RX-E100SLRX-E100SLArea SuffixContentsSafety precautions -1- 2Importance administering point on the safety -1- 3Disassembly method -1- 4Adjustment method -1- 9Description of major ICs -1-10 16 J CU.S

2、.ACanadaDVDTVVCRCDFMAMRX-E100HOME THEATER RECEIVERTV DILECTDVDMEMORYCONTROLADJUSTSETTINGSTANDBYD I G I T A LD I G I T A LSURROUNDINPUTANALOG/DIGITALINPUT ATTMASTER VOLUMESURROUNDON/OFFDSPMODEANALOGPRO LOGICSUBWFR LFESLEEPSTTUNEDMUTINGMHZKHZVOLAUTODGTL AUTOINPUT ATTDSPLCRLSSRSLPCMDOLBY DDTSPOWER11REM

3、OTE CONTROLSURROUNDDSP MODESOUND15 SUBWOOFER +TESTSLEEP654EFFECT CENTER +598 REARL +BASSBOOST5 REARR +MENU5CDAMMUTINGTV/VIDEOTVVCRFMTV VOLTV/VCR CHDVD+VOLUMEPOWER87RM-SRXE100J HOME THEATER RECEIVER32INPUT A/DENTER+10010+ +7TVVCRAUDIODVDRadioFans.CN 收音机爱 好者资料库RX-E100SL1-21. This design of this produc

4、t 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. Service

5、s 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 o

6、f 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 o

7、btained 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 t

8、he 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 wit

9、h 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 t

10、hat 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, con

11、trol 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 th

12、e 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 methodPlug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sen

13、sitivity 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 a

14、ny 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 d

15、esigned 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 repla

16、ced by approved parts.5. If mains voltage selector is provided, check setting for local voltage.Good earth groundPlace this probe on each exposedmetal part.AC VOLTMETER(Having 1000 ohms/volts,or more sensitivity)1500 10W0.15 F AC TYPE!Burrs formed during molding may be left over on some parts of the

17、 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 id

18、entified 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.comRadioFans.CN 收音机爱 好者资料库RX-E100SL1-3Caution: For continued protection against risk offire, replace

19、 only with same type 5A/125V forF201, 2A/125V for F202 and F203. This symbolspecifies type of fast operating fuse.Precaution: Pour eviter risques de feux, remplacezle fusible de surete de F201 comme le meme typeque 5A/125V, et 2A/125V pour F202 et F203. Ce sont des fusibles suretes qui functionnes r

20、apide.Importance administering point on the safety LVA10230-A2CN207FW201R201FC203FC205FW202FC206FC2042A-125V2A-125VLVA10230-A3CN217EP202FC201PW103PW102PW101R205TA201TA202FC202B410B411B413B412B414B4155A-125VRX-E100SL1-4Remove the four screws A attaching the top cover on both sides of the body.Remove

21、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 methodRemoving the top cover (See Fig.1)Prior to performing the following procedure, remove the top cover.Remove the power cord stopper from th

22、e rear panel by moving it in the direction of the arrow.Remove the eleven 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

23、procedure, remove the top cover.Disconnect the card wire from connector CN411 on the audio board and CN204 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

24、 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.1Fig.2Fig.3Fig.4A 2A 2BTop coverCPower supply boardAudio boardCN411Main boardTie bandDEEFEFFCord stopperCFront panel assemblyFront panel as

25、semblyDRear panelCN204FERX-E100SL1-5Prior to performing the following procedure, remove the top cover and the rear panel.Cut off the tie band fixing the harness.Disconnect the tuner board and DSP board from connector CN111 and CN681 on the each Relay board.Disconnect the Relay board from connector C

26、N503 and CN501 on the audio board.Disconnect the card wire connected to connector CN522 on the Input board.1.2.3.4.Removing each board connected to the rear side of the audio board(See Fig.5 to 7)Fig.5Fig.6Fig.7DSP boardInput boardTuner boardDSP boardCN111CN681CN522CN503CN522Relay boardCN501Relay bo

27、ardTuner boardCN681CN111Input boardRX-E100SL1-6Prior to performing the following procedure, remove the top cover , the rear panel and the each board.Removing the audio board (See Fig.8)Remove the ten screws K and four screws L attaching the heat sink.Remove the two screws J attaching the heat sink f

28、rom the rear side of main board.1.2.Removing the Heat sink (See Fig.10 to 11)Prior to performing the following procedure, remove the top cover, the rear panel and audio board.Remove the harness band fixing the harness.Disconnect the harness from connector CN707 on the power supply board .Disconnect

29、the harness from connector CN202 and CN206 on the main board .Remove the five screws H and the two screws I attaching the main board.1.2.3.4.Removing the main board (See Fig.9)Disconnect the card wire from connector CN411 on the audio board.Disconnect the harness from connector CN205 on the audio bo

30、ard.Disconnect the harness from connector CN515, CN516, and CN517on the main board.Remove the harness band fixing the harness.Remove the three screws G attaching the audio board assembly.1.2.3.4.5.Fig.8Fig.9Fig.11Fig.10powersupply boardPower / FuseboardCN411Audio boardMain board rear sideMain boardH

31、eat sink CN206CN205GCN516Power transformerCN707HHHHIILLKKKJJCN515CN517CN202HarnessbandHarnessbandMain boardRX-E100SL1-7Prior to performing the following procedure, remove the top cover and the rear panel.Disconnect the harness connected to connector CN217 on the power / fuse board (If necessary, cut

32、 off the band fixing the harness on the side of the base chassis).Unsolder the power cord and other harnesses connected to the power / fuse board.Remove the screw O attaching the power / fuse board.1.2.3.Removing the power / fuse board(See Fig.13)Prior to performing the following procedures, remove

33、the top cover.Disconnect the harness from connector CN217 on the power / fuse board (If necessary, cut off the tie band fixing the harness).Disconnect the harness from connector CN201 andCN202 on the power supply board and main board.Remove the four screws M attaching the power transformer.1.2.3.Rem

34、oving the power transformer(See Fig.12 and 13)Prior to performing the following procedure, remove the top cover.Disconnect the card wire from connector CN204 on the power supply board.Disconnect the harness connected to connector CN201 and CN707 on the power supply board (If necessary, cut off the b

35、and fixing the harness on the side of the base chassis).Disconnect the harness connected to connector CN206 on the main boardRemove the three screws N attaching the power supply board.Unsolder the three harnesses connected to the power supply board.1.2.3.4.5.Removing the power supply board (See Fig.

36、12)Fig.12Fig.13Powersupply boardCN707Power transformerMSolderMSolderNPower / fuse boardPower cordPower transformerboardPW201PW203CN204PW202NNCN201OCN217HookCN206CN202Tie bandTie bandRX-E100SL1-8Prior to performing the following procedure, remove the top cover and the front panel assembly.Remove the

37、two screws P attaching the power switch board.Remove the seven screws Q attaching the system control board.1.2.Removing the system control board / power switch board (See Fig.14)Fig.14System control boardPower switch boardQPQRX-E100SL1-9Adjustment method1. Prior to turning the power ON, fully turn t

38、he adjusting resistor (VR301(Lch),VR302(Rch) counterclockwise direction and connect the DC voltmeter to the measuring terminal(B451-B452(Lch) , B453-B454(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

39、 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 sectionB453-B454 (Rch)VR301 (Lch)VR302 (Rch)Heat sinkAdjustment of idling currentMeasurement terminalB451-B452(Lch) , B453-B454(Rch)Adjustme

40、nt volumeVR301(Lch) , VR302(Rch)AttentionThis adjustment does not obtain a correct adjustment value immediately after the amplifier isused (state that an internal temperature has risen). Please adjust immediately after using the amplifier after turning off the power supply of theamplifier and fallin

41、g an internal temperature. * It is not abnormal though the idling current might not become 0mA even if it is finished to turn variable resistance (VR301VR302) in the direction of counterclockwise. B451-B452 (Lch)RX-E100SL1-10 1 2 3 4 5 6 7 8 9101133323130292827262524231213141516171819202122444342414

42、0393837363534SDOSI2CSMUTEBICKLRCKSDTI1SDTI2SDTI3SDTODAUXDFSDZF2/OVFRIN+RIN-LIN+LIN-ROUT1LOUT1ROUT2LOUT2ROUT3LOUT3NCDZFETVDDDVDDDVSSPDNTSTNCADIFCAD1CAD0LOOP1LOOP0/SDA/CDTIDIF1/SCL/CCLKDIF0/CSNP/SMCLKDZF1AVSSAVDDVREFHVCOM1.Pin layoutAK4527B (IC601) : A/D,D/A ConverterDescription of major ICsAK4527BVQT

43、op ViewNo. 1 2 3 4 5 6 7 8 9101112131415161718Pin nameSDOSI2CSMUTEBICKLRCKSDTI1SDTI2SDTI3SDTODAUXDFSNCDZEFTVDDDVDDDVSSPDNTSTSDTO Source Select Pin (Note 1) L : Internal ADC output, H : DAUX input Control Mode Select Pin L : 3-wire Serial, H : I2C BusSoft Mute Pin (Note 1) When this pin goes to H, so

44、ft mute cycle is initialized. When returning to L, the output mute releases.Audio Serial Data Clock PinInput Channel Clock PinDAC1 Audio Serial Data Input PinDAC2 Audio Serial Data Input PinDAC3 Audio Serial Data Input PinAudio Serial Data Output PinSub Audio Serial Data Input PinDouble Speed Sampli

45、ng Mode Pin (Note 1) L : Normal Speed, H : Double SpeedNo Connect No internal bonding.Zero Input Detect Enable Pin L : mode 7 (disable) at parallel mode, zero detect mode is selectable by DZFM2-0 bits at serial mode.H : mode 0 (DZF is AND of all six channels)Output Buffer Power supply Pin, 2.7V5.5VD

46、igital Power Supply Pin, 4.5V5.5VDe-emphasis Pin, 0VPower-Down & Reset Pin When L, the AK4527B is powered-down and the control registers are reset to default state. If the state of P/S or CAD0-1 changes, then the AK4527B must be reset by PDN.Test Pin This pin should be connected to DVSS.FunctionAK45

47、27(1/2)I/OIIIII/OIIIOII-I-II2. Pin function (1/2)RX-E100SL1-11No.1920212223242526272829303132333435363738394041424344Pin nameNCADIFCAD1CAD0LOUT3ROUT3LOUT2ROUT2LOUT1ROUT1LIN-LIN+RIN-RIN+DZF2OVFVCOMVREFHAVDDAVSSDZF1MCLKP/SDIF0CSNDIF1SCL/CCLKLOOP0SAD/CDTILOOP1No Connect No internal bonding.Analog Input

48、 Format Select PinH : Full-differential input, L : Single-ended inputChip Address 1 PinChip Address 0 PinDAC3 Lch Analog Output PinDAC3 Rch Analog Output PinDAC2 Lch Analog Output PinDAC2 Rch Analog Output PinDAC1 Lch Analog Output PinDAC1 Rch Analog Output PinLch Analog Negative Input PinLch Analog

49、 Positive Input PinRch Analog Negative Input PinRch Analog Positive Input PinZero Input Detect 2 Pin (Note 2) When the input data of the group 1 follow total 8192LRCK cycles with 0 input data, this pin goes to H.Analog Input Overflow Detect Pin (Note 3) This pin goes to H if the analog input of Lch

50、or Rch is overflows.Common Voltage Output Pin,AVDD/2 Large external capacitor around 2.2uF is used to reduce power-supply noise.Positive Voltage Reference Input Pin,AVDDAnalog Power Supply Pin,4.5V5.5VAnalog Ground Pin,0VZero Input Detect 1 Pin (Note 2) When the input data of the group 1 follow tota