JVC-RXE112R-hccc-sm 维修电路原理图.pdf

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1、SERVICE MANUALHOME CINEMA CONTROL CENTERNo.21085Apr. 2002COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.RX-E112RSLRX-E112RSL/RX-E111RSLContentsSafety precautions -1- 2Disassembly method -1- 3Adjustment method -1- 8Description of major ICs -1- 922RX-E111RSLEach difference pointsSource indication lens co

2、lorGRAY SMOKECLEAR LIGHT GREENMODELRX-E112RSLRX-E111RSLArea suffixB - U.K.E - Continental EuropeEN - Northern EuropeEV - Eastern EuropeRM-SRXE111R REMOTE CONTROLHOME CINEMA CONTROL CENTERCONTROLCHANNELVOLUMETV VOLTUNINGSTOPPAUSEFF/REWDIMMERTV/VIDEOVCRMUTINGRECPLAYDOWNUPDVDSLEEPTV DIRECTDVDSTBVCRTVAN

3、ALOG/DIGITALTAPEFMBASS+CENTERTESTBASSREAR-LBASS BOOST TREBLE+REAR-REFFECTTREBLESUBWOOFERRETURNFM MODEENTERDISPLAY MODERDSMODEON/OFFAM123456789100+10+100DVDMENUVCRTVSTBINPUTSURROUNDTA/NEWS/INFOPTY SEARCHPTY PTY AUDIODVD MENUSURROUNDSOUNDSOUND+DVDSTBVCRTVTAPEFM/AMDVDSTBVCRTVTAPEFM/AMHOME CINEMA CONTRO

4、L CENTERTV DIRECTMEMORYCONTROLADJUSTSETTINGSTANDBYINPUTANALOG/DIGITALINPUT ATTMASTER VOLUMESURROUNDON/OFFSURROUNDMODESTANDBY/ONPHONESANALOGPL SUBWFR LFESLEEPMODETASTTUNEDINFONEWSAUTO MUTINGMHZKHZVOLAUTOAUTO SRINPUT ATTDSP HPLCRLSSRSLPCMDOLBY DDTSRDS RadioFans.CN 收音机爱 好者资料库RX-E112RSL/RX-E111RSL1-21.

5、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

6、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

7、 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 afforde

8、d 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

9、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

10、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, an

11、d 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

12、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

13、 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 methodPlug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000

14、 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 each exposed

15、 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

16、. 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 cr

17、itical components are replaced 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 lef

18、t 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 ( ),

19、diode ( ) and ICP ( ) or identified by the mark nearby are critical for safety. (This regulation does not correspond to J and C version.)RadioFans.CN 收音机爱 好者资料库1-3RX-E112RSL/RX-E111RSLRemove the four screws A attaching the top cover on both sides of the body.Remove the three screws B on the back of

20、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 the rear panel by moving it in the d

21、irection of the arrow.Remove the nineteen screws F & G attaching the each boards to the rear panel.Remove the four screws H 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.Cut off the tie band

22、 fixing the harness, if needed.Disconnect the card wire from the connector CN411 on the audio board, CN412 on the input board and CN204 on the power supply board.Disconnect the harness form the connector CN209 on the power supply board.Remove the three screws C attaching the front panel assembly.Rem

23、ove the screw D attaching the headphone jack board.Remove the four screws E attaching the front panel assembly on the bottom of the body. Detach the front panel assembly toward the front.1.2.3.4.5. 6.Removing the front panel assembly (See Fig.2 and 3)Fig.1Fig.2Fig.3Fig.4A(both sides)BTop coverCCPowe

24、r supply boardAudio boardCN411Main boardTie bandGFFFHHHHPower cordstopperFront panel assemblyFront panel assembly(Bottom side)D(attaching theheadphone jack board)Rear panelCN204CN209ECN412Input boardERX-E112RSL/RX-E111RSL1-4Prior to performing the following procedure, remove the top cover and rear p

25、anel.Disconnect the card wire from the connector CN412 and CN512 on the input board.1.Removing the input board (See Fig.5)Prior to performing the following procedure, remove the top cover and rear panel.Disconnect the connector CN111 and CN112 on the tuner board and draw out the tuner board in the d

26、irection of the arrow (see fig.5).Disconnect the connector CN513 and CN514 on the relay board (tuner) and draw out the relay board (tuner) in the direction of the arrow (see fig. 6).1.2.Removing the tuner board (See Fig.5 and 6)Prior to performing the following procedure, remove the top cover and re

27、ar panel.Disconnect the connector CN681 on the DSP board and draw out the DSP board in the direction of the arrow (see fig.5).Disconnect the connector CN511 on the relay board (DSP) and draw out the relay board (DSP) in the direction of the arrow (see fig.6).1.2.Removing the DSP board (See Fig.5 and

28、 6)Removing the audio board (See Fig.7)Prior to performing the following procedure, remove the top cover, rear panel, input board, tuner board, DSP board and relay boards (tuner & DSP).Remove the harness band1 fixing the harness.Disconnect the card wire from the connector CN411 on the audio board.Di

29、sconnect the harness from the connector CN224 /CN225 on the audio board.Disconnect the harness from the connector CN515, CN516 and CN517 on the main board.Remove the three screws I attaching the audio board.1.2.3.4.5.Fig.5Fig.6Fig.7DSP boardInput boardTuner boardCN111CN681CN512CN513CN516CN515CN517CN

30、411CN224/CN225Harness band1CN412Relay board(tuner)Relay board(DSP)Main boardAudio boardCN112CN514CN511I1-5RX-E112RSL/RX-E111RSLPrior to performing the following procedure, remove the top cover, main board and each amp. board.Remove the four screws R attaching the two brackets to the heat sink and re

31、move the two brackets.1.Removing the Heat sink (See Fig.11)Prior to performing the following procedure, remove the top cover, rear panel, input board, DSP board and relay board (DSP).Disconnect the harness from the connector CN515, CN516 and CN517 on the main board (see fig.7).Remove the harness ban

32、d1 (see fig.7) and harness band2 fixing the harness.Disconnect the harness from the connector CN707 on the power supply board .Disconnect the harness from the connector CN202 and CN226/CN227 on the main board .Remove the five screws J and two screws K attaching the main board.Remove the two screws L

33、 attaching the heat sink to the main board.Disconnect the connector of each amp. board.1.2.3.4.5. 6. 7.Removing the main board with speaker board (See Fig.8 to 10)Prior to performing the following procedure, remove the top cover and main board.Remove the two screws M attaching the Cch amp. board and

34、 remove the Cch amp. board.Remove the two screws N attaching the Lch amp. board and remove the Lch amp. board.Remove the two screws O attaching the Rch amp. board and remove the Rch amp. board.Remove the two screws P attaching the SLch amp. board and remove the SLch amp. board.Remove the two screws

35、Q attaching the SRch amp. board and remove the SRch amp. board.1.2.3.4.5.Removing the each amp. board of Cch, Lch, Rch, SLch and SRch (See Fig.11)Fig.8Fig.9Fig.11Fig.10power supplyboardSpeaker boardSpeaker boardRch amp. boardLch amp. boardCch amp. boardSLch amp. boardSRch amp. boardMain board (rever

36、se side)Main boardHeat sink Heat sink BracketBracketCN226/CN227CN707CN705CN701CN704CN703CN702JJKLRM(Cch)N(Lch)O(Rch)Q(SRch)P(SLch)RCN202Harnessband2Main boardRX-E112RSL/RX-E111RSL1-6Prior to performing the following procedure, remove the top cover.Remove the screw G attaching the power/fuse board to

37、 the rear panel (see fig. 4).Disconnect the harness from the connector CN217 on the power/fuse board (If necessary, cut off the band fixing the harness on the side of the base chassis).Remove the screw U attaching the power/fuse board.Unsolder the power cord and other harness connected to the power/

38、fuse board.1.2.3.4.Removing the power/fuse board(See Fig.13)Prior to performing the following procedures, remove the top cover.Cut off the tie band.Disconnect the harness from the connector CN217 on the power/fuse board.Disconnect the harness from the connector CN201 on the power supply board and CN

39、202 on the main board.Remove the one screw J and remove the earth wire.Remove the four screws R attaching the power transformer.1.2.3.4. 5.Removing the power transformer(See Fig.12 and 13)Prior to performing the following procedure, remove the top cover.Disconnect the card wire from the connector CN

40、204 on the power supply board.Disconnect the harness from the connector CN201, CN209 and CN707 on the power supply board.Disconnect the harness from the connector CN226 /CN227 on the main boardRemove the three screws S attaching the power supply board and pull out the power supply board removing the

41、 hook.Unsolder the three harness connected to the power supply board (If necessary, cut off the band fixing the harness on the side of the base chassis).1.2.3.4.5.Removing the power supply board (See Fig.12)Fig.12Fig.13Power supply boardCN707Power transformerSolderSolder(on the reverse side)SolderPo

42、wer/fuse boardPower cordTie bandTie bandPower transformer boardPW201PW203CN204CN209PW202SSRJ(fixing theearth wire)SCN201UCN217HookCN226/CN227CN2021-7RX-E112RSL/RX-E111RSLPrior to performing the following procedure, remove the top cover and front panel assembly.Remove the two screws A attaching the p

43、ower switch board.Remove the eight screws B attaching the system control board.Disconnect the card wire from the connector CN401, CN402 and CN412 on the system control board.Remove the switch buttons and indicator esc., if needed.1.2.3. 4.Removing the system control board with power switch board (Se

44、e Fig.1 to 3)Prior to performing the following procedure, remove the top cover and front panel assembly.Remove the screw C attaching the headphone jack board to the front panel assembly.1.Removing the headphone jack board (See Fig.1)Fig.1Fig.2Fig.3System control boardSystem control board (forward si

45、de)Switch buttonIndicator esc.CN401CN412CN402Headphone jack boardHeadphonejack boardPower switch boardPower switch board (forward side)Front panel assembly (inner side)Front panel assembly (inner side)BBACCRX-E112RSL/RX-E111RSL1-8Adjustment method1. Prior to turning the power ON, fully turn the adju

46、sting 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 3.2mV immediately after turning the power ON.4. When the idli

47、ng current has been stable (about 30 minutes after the power is turned ON), confirm that the measured value falls within 1.0mV 10mV(2.7mV).Power amplifier sectionB453-B454 (Rch)Rch amp. boardLch amp. boardVR301 (Lch)VR302 (Rch)Heat sinkAdjustment of idling currentMeasurement terminal B451-B452(Lch)

48、, B453-B454(Rch) Adjustment volume VR301(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

49、of theamplifier and falling 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)1-9RX-E112RSL/RX-E111RSLPin No.1891011121314151617181920212223

50、2425323334,3536 37,3839404142434445,464748495051,5253546364,65 66 67 68 69,70 71 72 7380 81 82,83 84 85 86878889 9093 94 95100SymbolVDDX2X1VSSXT2XT1RESETAUTODATALOCKDIGITAL0FORMATCHANNELERRRSTDETAVDDAVREF0AVSS AV REF1RX,TXDSPCOMDSPSTSDSPCLKDSPRDYMIDIO_IN/OUTMICKMICSMILPMIACKDSPRSTCDTI/CDTOCCLKCSXTSP