Marantz-AV-7005-Service-Manual电路原理图.pdf

ServiceManual Some illustrations using in this service manual are slightly different from the actual set. Please use this service manual with referring to the operating instructions without fail. For purposes of improvement, specifications and design are subject to change without notice.AV Pre TunerAV7005 / N1B/U1BAV7005AV7005S0195-1V03DM/DG1011 Copyright 2010 Do<M3SAFETY PRECAUTIONSThe following check should be performed for the continued protection of the customer and service technician.LEAKAGE CURRENT CHECKBefore returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. if the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective.Be sure to test for leakage current with the AC plug in both polarities, in addition, in each power ON, OFF and STANDBY mode, if applicable.CAUTIONPlease heed the points listed below during servicing and inspection.ÕHeed the cautions!Spots requiring particular attention when servicing, such as the cabinet, parts, chassis,etc., have cautions indicated on labels. be sure to heed these causions and the cautions indicated in the handling instructions.ÕCaution concerning electric shock!(1) An AC voltage is impressed on this set, so touching internal metal parts when the set is energized could cause electric shock. Take care to avoid electric shock, by for example using an isolating transformer and gloves when servicing while the set is energized, unplugging the power cord when replacing parts, etc.(2) Tere are high voltage parts inside. Handle with extra care when the set is energized.Õ Caution concerning disassembly and assembly!Through great care is taken when manufacturing parts from sheet metal, there may in some rare cases be burrs on the edges of parts which could cause injury if fi ngers are moved across them. Use gloves to protect your hands.ÕOnly use designated parts!The set's parts have specific safety properties (fire resistance, voltage resistance, etc.). For replacement parts, be sure to use parts which have the same poroperties. In particular, for the important safety parts that are marked z on wiring diagrams and parts lists, be sure to use the designated parts.Õ Be sure to mount parts and arrange the wires as they were originally!For safety seasons, some parts use tape, tubes or other insulating materials, and some parts are mounted away from the surface of printed circuit boards. Care is also taken with the positions of the wores omsode amd clamps are used to keep wires away from heating and high voltage parts, so be sure to set everything back as it was originally.ÕInspect for safety after servicing!Check that all screws, parts and wires removed or disconnected for servicing have been put back in their original positions, inspect that no parts around the area that has been serviced have been negatively affected, conduct an inslation check on the external metal connectors and between the blades of the power plug, and otherwise check that safety is ensured.(Insulation check procedure)Unplug the power cord from the power outlet, disconnect the antenna, plugs, etc., and turn the power switch on. Using a 500V insulation resistance tester, check that the inplug and the externally exposed metal parts (antenna terminal, headphones terminal, input terminal, etc.) is 1M or greater. If it is less, the set must be inspected and repaired.Many of the electric and structural parts used in the set have special safety properties. In most cases these properties are difficult to distinguish by sight, and using replacement parts with higher ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance will be poreserved. Parts with safety properties are indicated as shown below on the wiring diagrams and parts lists is this service manual. Be sure to replace them with parts with the designated part number.(1) Schematic diagrams .Indicated by the z mark.(2) Parts lists .Indicated by the z mark.Using parts other than the designated parts could result in electric shock, fi res or other dangerous situations.CAUTIONConcerning important safety parts4NOTE FOR SCHEMATIC DIAGRAMWARNING:Parts marked with this symbol z have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.CAUTION:Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective.WARNING:DO NOT return the unit to the customer until the problem is located and corrected.NOTICE:ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHMALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.Parts for which “nsp“ is indicated on this table cannot be supplied.When ordering of part, clearly indicate “1“ and “I“ (i) to avoid mis-supplying.Ordering part without stating its part number can not be supplied. Not including General-purpose Carbon Chip Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)Parts marked with this symbol z have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.Not including General-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)Part indicated with the mark “Ò “ is not illustrated in the exploded view.WARNING:1.2.3.4.5.6.Ô ResistorsRD : CarbonRC : CompositionRS : Metal oxide filmRW: windingRN : Metal filmRK : Metal mixtureP : Pulse-resistant typeNL : Low noise typeNB : Non-burning typeFR : Fuse-resistorF : Lead wire forming2B : 1/8 W2E : 1/4 W2H : 1/2 W3A : 1 W3D : 2 W3F : 3 W3H : 5 WF:¶1%G:¶2%J:¶5%K:¶10%M:¶20%Ex.: RNType14KShapeand per-formance2EPower182Resist-anceGAllowableerrorFROthers Resistance1800ohm=1.8kohm1 8 2Indicates number of zeros after effective number.2-digit effective number.1.2ohm1 R 22-digit effective number, decimal point indicated by R.1-digit effective number.: Units: ohmÔ CapacitorsCE : Aluminum foilelectrolyticCA : Aluminium solidelectrolyticCS : Tantalum electrolyticCQ: FilmCK : CeramicCC : CeramicCP : OilCM: MicaCF : MetallizedCH : MetallizedHS : High stability typeBP : Non-polar typeHR : Ripple-resistant typeDL : For change and dischargeHF : For assuring high requencyU : UL partC : CSA partW : UL-CSA partF : Lead wire forming0J : 6.3 V1A : 10 V1C : 16 V1E : 25 V1V : 35 V1H : 50 V2A : 100 V2B : 125 V2C : 160 V2D : 200 V2E : 250 V2H : 500 V2J : 630 VF:¶1%G:¶2%J:¶5%K:¶10%M:¶20%Z:¶80%:- 20%P : +100%C:¶0.25pFD:¶0.5pF= : OthersEx.: CEType04WShapeand per-formance1HDielectricstrength3R2CapacityMAllowableerrorBPOthersK Units:F.2200F2 2 2Indicates number of zeros after effective number.2-digit effective number.K Units:F.2.2F2 R 22-digit effective number, decimal point indicated by R1-digit effective number. Capacity (electrolyte only)K When the dielectric strength is indicated in AC,“AC“ is included after the dieelectric strength value. Capacity (except electrolyte)K Units:pF2200pF=0.0022F2 2 2Indicates number of zeros after efective number. (More than 2)2-digit effective number.K Units:pF220pF2 2 12-digit effective number.Indicates number of zeros after effective numver. (0 or 1)NOTE FOR PARTS LIST5TECHNICAL SPECIFICATIONSn Audio Section AnalogInput sensitivity/Input impedance : 200 mV/47 kFrequency response : 10 Hz 100 kHz +1, 3 dB (DIRECT mode) S/N : 105 dB (IHFA weighted, DIRECT mode)Distortion : 0.005 % (20 Hz 20 kHz) (DIRECT mode)Rated output : Unbalanced pre-output: 1.2 VBalanced pre-output: 2.4 V DigitalD/A output : Rated output 2 V (at 0 dB playback)Total harmonic distortion 0.008 % (1 kHz, at 0 dB)S/N ratio 102 dBDynamic range 100 dBDigital input : Format Digital audio interface Phono equalizer (PHONO input REC OUT)Input sensitivity : 2.5 mVRIAA deviation : ±1 dB (20 Hz to 20 kHz) S/N : 74 dB (A weighting, with 5 mV input)Rated output : 150 mVDistortion factor : 0.03 % (1 kHz, 3 V)n Video Section Standard video connectorsInput/output level and impedance : 1 Vp-p, 75 Frequency response : 5 Hz 10 MHz +1, 3 dB Color component video connectorInput/output level and impedance:Y (brightness) signal 1 Vp-p, 75 PB / CB signal 0.7 Vp-p, 75 PR / CR signal 0.7 Vp-p, 75 Frequency response :5 Hz 60 MHz +0, 3 dB (when “Video Convert” set to “OFF”)n Tuner section (for U)FM(Note: V at 75 , 0 dBf = 1 x 1015W)Receiving Range :FM 87.5 MHz 107.9 MHz AM530 kHz 1710 kHzUsable Sensitivity :FM1.5 V (14.8 dBf) AM18 VS/N (IHF-A) :FMMONO 78 dB AMSTEREO 68 dBHD 85 dB 85 dBTotal harmonic Distortion (at 1 kHz) :FMMONO 0.1 % AMSTEREO 0.2 %HD 0.02 % 0.02 %n Tuner section (for N) FM(Note: V at 75 , 0 dBf = 1 x 1015W)Receiving Range : FM 87.5 MHz 108.0 MHz AM522 kHz 1611 kHzUsable Sensitivity :FM1.2 V (12.8 dBf) AM18 VS/N (IHF-A) :FMMONO 72 dBSTEREO 67 dBTotal harmonic Distortion (at 1 kHz) :FMMONO 0.3 %STEREO 0.7 %n GeneralPower supply (for U) : AC 120 V, 60 HzPower supply (for N) : AC 230 V, 50 Hz Power consumption :60 W0.2 W (Standby)4.0 W (CEC standby)Maximum external dimensions : 440 (W) x 187 (H) x 395 (D) mmWeight : 10.1 kgn Remote Control Unit (RC011SR)Batteries : R03/AAA Type (two batteries)41252.729.8 40.710034044016.518723.552.7267360395170.525711.5DIMENSION6CAUTION IN SERVICINGFirmware update When you replace the DIGITAL UNIT ASSY (8U-310051E), you need software updates. Refer to “VERSION UPGRADE PROCEDURE OF FIRMWARE (26 - 36 page) .Please update the following procedure.1. First, Please update by DFW (33 - 36 page).2. Next, Please update the latest fi rmware by DPMS (26 - 32 page).Initializing AV Pre TunerAV Pre Tuner initialization should be performed when the com, peripheral parts of com, and Digital P.W.B. are replaced.1. Turn off the power using ON/STANDBY button.2. Press ON/STANDBY button while simultaneously pressing SURROUND MODE and AUTO buttons.3. Check that the entire display is fl ashing with an interval of about 1 second, and release your fi ngers from the 2 buttons and the microprocessor will be initialized.Service Jigs When you repair the printing board, you can use the following JIG (Extension cable kit). Please order to marantz Offi cial Service Distributor in your region if necessary.8U-110084S : EXTENSION UNIT KIT : 1 Set(Refer to “JIG FOR SERVICING“.)Note: wIf step 3 does not work, start over from step 1. w All user settings will be lost and this factory setting will be recovered when this initialization mode. So make sure to memorize your setting for restoring after the initialization.ON/STANDBYSURROUND MODEAUTO7DISASSEMBLY Disassemble in order of the arrow of the fi gure of following fl ow. In the case of the re-assembling, assemble it in order of the reverse of the following fl ow. In the case of the re-assembling, observe “attention of assembling“ it. If wire bundles are untied or moved to perform adjustment or parts replacement etc., be sure to rearrange them neatly as they were originally bundled or placed afterward.Otherwise, incorrect arrangement can be a cause of noise generation.FRONT PANEL ASSYRefer to “DISASSEMBLY 1. FRONT PANEL ASSY“and “EXPLODED VIEW“FRONT UNIT ASSY(Ref. No. of EXPLODED VIEW : P1)OPT UNIT(Ref. No. of EXPLODED VIEW : P2)H/P UNIT(Ref. No. of EXPLODED VIEW : P3)FRONT HDMI UNIT(Ref. No. of EXPLODED VIEW : P4)DOORDET UNIT(Ref. No. of EXPLODED VIEW : P5)TRANS MAINRefer to “DISASSEMBLY 5. TRANS MAIN“and “EXPLODED VIEW“TRANS MAIN(Ref. No. of EXPLODED VIEW : P22)HEAT SINK ASSYRefer to “DISASSEMBLY 2. HEAT SINK ASSY“and “EXPLODED VIEW“GUIDE TOP UNIT(Ref. No. of EXPLODED VIEW : P21)HDAM AMP UNIT(Ref. No. of EXPLODED VIEW : P2)PCB REG CNT/PCB REGRefer to “DISASSEMBLY 3. PCB REG CNT/PCB REG“and “EXPLODED VIEW“REG UNIT(Ref. No. of EXPLODED VIEW : P8)REG-CNT UNIT(Ref. No. of EXPLODED VIEW : P9)CABINET TOPHDMI UNIT ASSYRefer to “DISASSEMBLY 4. HDMI UNIT ASSY“and “EXPLODED VIEW“FRONT CNT UNIT(Ref. No. of EXPLODED VIEW : P10)INPUT UNIT(Ref. No. of EXPLODED VIEW : P11)A.AUDIO UNIT(Ref. No. of EXPLODED VIEW : P13)VIDEO UNIT ASSY(Ref. No. of EXPLODED VIEW : P14)DIGITAL UNIT(Ref. No. of EXPLODED VIEW : P15)SIDE-CNT UNIT(Ref. No. of EXPLODED VIEW : P17)RS232C UNIT(Ref. No. of EXPLODED VIEW : P18)SIRIUS UNIT(Ref. No. of EXPLODED VIEW : P19)XLR CONNECT UNIT(Ref. No. of EXPLODED VIEW : P24)BALANCE OUT UNIT(Ref. No. of EXPLODED VIEW : P25)8About the photos used for descriptions in the DISASSEMBLY“ section. The direction from which the photographs used herein were photographed is indicated at “Direction of photograph: *“ at the left of the respective photographs. Refer to the table below for a description of the direction in which the photos were taken. Photographs for which no direction is indicated were taken from above the product.1. FRONT PANEL ASSY(1) Remove the screws.The viewpoint of each photograph(Photografy direction)¦View from above§Front sideDirection of photograph: BDirection of photograph: DDirection of photograph: CDirection of photograph: ACABINET TOP FRONT PANEL ASSYàProceeding : View from bottom9(2) Cut the wire clamp band, then disconnect the connector wires and FFC cable.b Do not remove the FERRITE CORE when you disconnect the FFC cable.STYLEPIN : LooseSTYLEPIN : LooseN4201N1001FFC cable FFC cablecutFERRITE CORE10(3) Remove the screws.Direction of photograph: DDirection of photograph: CPlease refer to “EXPLODED VIEW“ for the disassembly method of each P.W.B included in FRONT PANEL ASSY.