Marantz-AV7704-pre-sm2 电路图 维修手册.pdf

《Marantz-AV7704-pre-sm2 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Marantz-AV7704-pre-sm2 电路图 维修手册.pdf（206页珍藏版）》请在收音机爱好者资料库上搜索。

1、AV Pre Tuner AV7705 Click here! On-line service parts list ONLINE PARTS LIST (P5) WEB owners manual NA: EU: Upload is planned for the time of a future press release. BEFORE SERVICING THIS UNIT ELECTRICAL MECHANICAL REPAIR INFORMATION UPDATING Confidential Service Manual Ver. 2 Forpurposesofimproveme

2、nt,specificationsanddesignaresubjecttochangewithoutnotice. Please use this service manual whenreferringtotheoperatinginstructionswithoutfail. Some illustrations usedinthisservicemanualareslightlydifferentfromtheactualproduct. Please refer to the MODIFICATION NOTICE. RadioFans.CN 收音机爱 好者资料库 BEFORE SE

3、RVICING THIS UNIT SAFETY PRECAUTIONS NOTE FOR SCHEMATIC DIAGRAM HANDLING THE SEMICONDUCTOR AND OPTICS ONLINE PARTS LIST Accessing the Parts List Searching Part Numbers or Ref. Numbers NOTE FOR PARTS LIST SERIAL NUMBER Serial Number Organization SKU Code of this Unit POST-SERVICE PRECAUTIONS Initiali

4、zing this Unit JIG FOR SERVICING Before Servicing This Unit ElectricalMechanicalRepair InformationUpdating 2 RadioFans.CN 收音机爱 好者资料库 The following items should be checked for continued protection of the customer and the service technician. Leakage current check Before returning the set to the custom

5、er, be sure to carry out 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 chas- sis to either side of the power cord is less than 460 kohms, the set is defective. Be sure to test for leakage current

6、with the AC plug in both polarities, in addition, when the sets power is in each state (on, off and standby mode), if applicable. CAUTION Please heed the following cautions and instructions during servic- ing and inspection. Heed the cautions! Cautions which are delicate in particular for servicing

7、are labeled on the cabinets, the parts and the chassis, etc. Be sure to heed these cautions and the cautions described in the handling instructions. Cautions concerning electric shock! (1) An AC voltage is impressed on this set, so if you touch internal metal parts when the set is energized, you may

8、 get an electric shock. Avoid getting an electric shock, by using an isolating transformer and wearing gloves when servicing while the set is energized, or by unplugging the power cord when replacing parts, for example. (2) There are high voltage parts inside. Handle with extra care when the set is

9、energized. Caution concerning disassembly and assembly! Through great care is taken when parts were manufactured from sheet metal, there may be burrs on the edges of parts. The burrs could cause injury if fingers are moved across them in some rare cases. Wear gloves to protect your hands. Use only d

10、esignated parts! The sets parts have specific safety properties (fire resistance, voltage resistance, etc.). Be sure to use parts which have the same properties for replacement. The burrs have the same properties. In particular, for the important safety parts that are indicated by the z mark on sche

11、matic diagrams and parts lists, be sure to use the designated parts. Be sure to mount parts and arrange the wires as they were originally placed! For safety seasons, some parts use tapes, tubes or other insulating materials, and some parts are mount- ed away from the surface of printed circuit board

12、s. Care should also be taken with the positions of the wires by arranging them and using clamps to keep them away from heating and high voltage parts, so be sure to set everything back as it was originally placed. Make a safety check after servicing! Check that all screws, parts and wires removed or

13、 disconnected when servicing have been put back in their original positions, check that no serviced parts have deteriorated the area around. Then make an insulation check on the external metal connectors and between the blades of the power plug. And otherwise check that safety is ensured. (Insulatio

14、n check procedure) Unplug the power cord from the power outlet, disconnect the antenna, plugs, etc., and on the power. Using a 500V insulation resistance tester, check that the insulation resistance value between the inplug and the externally exposed metal parts (antenna terminal, headphones termina

15、l, input terminal, etc.) is 1M or greater. If it is less, the set must be inspected and repaired. Many of the electric and the structural parts used in the set have special safety properties. In most cases these properties are difficult to distinguish by sight, and the use of replacement parts with

16、higher rat- ings (rated power and withstand voltage) does not necessarily guarantee that safety performance will be preserved. Parts with safety properties are indicated as shown below on the wiring diagrams and the parts list in this service manual. Be sure to replace them with the parts which have

17、 the designated part number. (1) Schematic diagrams Indicated by the z mark. (2) Parts lists Indicated by the z mark. The use of parts other than the designated parts could cause electric shocks, fires or other dangerous situations. CAUTION Concerning important safety parts SAFETY PRECAUTIONS Before

18、 Servicing This Unit ElectricalMechanicalRepair InformationUpdating 3 RadioFans.CN 收音机爱 好者资料库 WARNING: Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. CAUTION: Before returning the set to the customer, be sure to carry out eith

19、er (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 set is defective. WARNING: DO NOT return the set to the customer unless the problem i

20、s identified and remedied. NOTICE: (1) ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHM (2) ALL CAPACITANCE VALUES ARE EXPRESSED IN MICRO FARAD, UNLESS OTHERWISE INDICATED. P INDICATES MICRO-MICRO FARAD. N INDICATES NANO FARAD. (3) EACH VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT

21、CONDITION. (4) CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. Electrostatic breakdown of the semi-conductors or optical pickup may occur due to a potential differ- ence caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding

22、 band (1 M ohm) that is properly grounded to remove any static electricity that may be charged on the body. 2. Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding (1 M ohm) on the work- bench or other surface, where the semi-conductors are to be placed. Bec

23、ause the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothing CBA Grounding Band Conductive Sheet or Copper Plate 1M 1M CBA NOTE FOR SCHEMATIC DIAGRAM HANDLING THE SEMICONDUCTOR AND OPTICS Before Serv

24、icing This Unit ElectricalMechanicalRepair InformationUpdating 4 ONLINE PARTS LIST Accessing the Parts List (1) Access from the Service Manual Click the URL link on the cover of the service manual. Examples of display NOTE : If the web browser does not open automatically, copy the URL and paste it i

25、nto the address bar of the web browser and then press Enter. (2) Accessing the Part List from the Model Asset Screen. Display Model Asset from New SDI. Click the section displayed as Link to Part Lists under the model name. NOTE : If the Link to Parts List section is not displayed, download the part

26、s table from the Asset list. Searching Part Numbers or Ref. Numbers You can search a Parts List for part numbers or Ref. numbers. (1) Enter the part number or Ref. number in the search window of the Parts List, and press the search button. (2) The search results are displayed. The name of the sheet

27、in which the search part is used and the parts line are displayed. (3) Next, click the Sheet section of the search results. 1. Parts indicated by nsp on this table cannot be supplied. 2. When ordering a part, make a clear distinction between 1 and I (i) to avoid mis-supplying. 3. A part ordered with

28、out specifying its part number can not be supplied. 4. Part indicated by mark is not illustrated in the exploded and packaging view. WARNING: Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. NOTE FOR PARTS LIST Before Servicing

29、This Unit ElectricalMechanicalRepair InformationUpdating 5 Product SKU SKU Code AV7705/U1BBCJ AV7705/N1BBCK SERIAL NUMBER Serial Number Organization The 14-digit serial number that contains the code of the manufacturing plant and the manufacturing date. SKU code 14 digits Factory code Cumulative ser

30、ial number Manufactured Year, month The last 2digit of year Month (01 12) SKU Code of this Unit Before Servicing This Unit ElectricalMechanicalRepair InformationUpdating 6 Make sure to initialize this unit after replacing the microcomputer or any peripheral equipment, or the digital PCB. 1. Press th

31、e power button to turn off the power. 2. While holding down buttons MOVIE and MUSIC simultaneously, press the power button to turn on the power. 3. Release the buttons after confirming that the display flashes at 1-second intervals. The unit is initialized. Use network initialization mode to initial

32、ize the network related settings. NOTE： If the unit fails to enter the service mode in step 3, repeat the procedure from step 1. Initializing the device restores the customized settings to the factory settings. Write down your settings in advance and reconfigure the settings after initialization. Us

33、e the following jigs (extension cable kit) when repairing the PCBs. Order with your dealer for the jigs your dealer if necessary. 8U-110084S : EXTENSION UNIT KIT : 1 Set 8U-110136S : EXTENSION UNIT KIT : 1 Set 900639103810S : JIG 29P EXTENSION CABLE : 1 Set (See JIG FOR SERVICING) MUSICXMOVE JIG FOR

34、 SERVICING Initializing this Unit POST-SERVICE PRECAUTIONS s Before Servicing This Unit ElectricalMechanicalRepair InformationUpdating 7 ELECTRICAL SCHEMATIC DIAGRAMS SCH01_DIGITAL CONNECT SCH02_DIGITAL POWER SCH03_MAIN CPU SCH04_EXPANDER SCH05_PROTECTION SCH06_DIR SCH07_AUDIO PLD SCH08_DSP1 SCH09_D

35、SP2 SCH10_DSP3 SCH11_DSP4 SCH12_ADC SCH13_ZONE, LEGO DAC SCH14_LEGO SCH15_VIDEO DECODER SCH16_HDMI SW2 SCH17_HDMI SW1 SCH18_VSP must connect recommended filter 44VCOMONoADC common voltage output; must connect external decoupling capacitor 45AGNDADGround, for ADC analog 46VCCADPower supply, 5.0 V (ty

36、p.), for ADC analog 47VINLINoADC analog voltage input, left channel 48VINRINoADC analog voltage input, right channel (1) Schmitt trigger input (2) Schmitt trigger input (3) Open-drain configuration in I2C mode (4) Onboard pull-down resistor (50 k , typical) (5) CMOS Schmitt trigger input Before Serv

37、icing This Unit ElectricalMechanicalRepair InformationUpdating 69 PCM9211 BLOCK DIAGRAM Clock/Data Recovery MPIO_A SELECTOR MPIO_C SELECTOR MPIO _B SELECTOR ADC Com. Supply MPO0/1 SELECTOR MPO0 MPO1 MAIN OUTPUT SCKO BCK LRCK DOUT PORT RXIN8 RXIN9 RXIN10 RXIN11 DITOUT AUTO DIR ADC AUXIN0 AUXIN1 AUXIN

38、2 AUTO DIR ADC AUXIN0 AUXIN1 AUXIN2 AUTO DIR ADC AUXIN0 AUXIN1 DIT Lock:DIR Unlock:ADC AUXIN2 AUXOUT OSC Divider XMCKO Divider XMCKO DITOUT RECOUT0 RECOUT1 AUXIN0 AUXIN1 ADC Standalone ADC Mode Control Function Control REGISTER POWER SUPPLY MC /SCL MDI/SDA MDO /ADR0 MS/ADR1 FILT PLL DIR Lock Detecti

39、on ERROR/INT0 NPCM/INT1 ADC Clock (SCK/BCK/LRCK) (To MPIO _A & MPO0/1) ADC MODE DIR CS (48-bit) DIT CS (48-bit) DIR Interrupt GPIO/GPO Data MPIO_A MPIO_B MPIO_C MPO0 MPO1 Divider (to MPIO_A) Secondary BCK/LRCK Selector RECOUT0 RECOUT1 SBCK/SLRCK DOUT RXIN7 SCKO/BCK/LRCK RXIN0 RXIN1 RXIN2 RXIN4/ASCKI

40、0 RXIN3 RXIN5/ABCKI0 RXIN6/ALRCKI0 RXIN7/ADIN0RXIN7 RXIN6 RXIN5 RXIN4 RXIN3 RXIN2 RXIN1 RXIN0 MPIO_A0 MPIO_A1 MPIO_A2 MPIO_A3 VINL VINR VCOM MPIO _C0 MPIO _C1 MPIO _C2 MPIO _C3 XTI XTO AGNDVDDRXGNDRXDVDDVCCADAGNDADDGNDVCC ADC ANALOG DIR ANALOG ALL DIR ANALOG SPI/I C INTERFACE 2 Reset and Mode Set Al

41、l Port f Calculator S DIR f Calculator S DIR P and P CD EXTRA DIR FUNCTIONS f Calculator S ERROR DETECTION Non-PCM DETECTION Flags DTS-CD/LD Detection Validity Flag User Data Channel Status Data BFRAME Detection Interrupt System MPIO_B3 MPIO_B2 MPIO_B1 MPIO_B0 RST PCM9211 SBAS495 JUNE 2010 BLOCK DIA

42、GRAM Copyright 2010, Texas Instruments IncorporatedSubmit Documentation Feedback9 Product Folder Link(s): PCM9211 Before Servicing This Unit ElectricalMechanicalRepair InformationUpdating 70 ADSP21487KSWZ4B (DIGITAL : IC251 / IC261 / IC271 / IC281) Terminal Function TOP VIEW (PINS DOWN) 1 44 45 89 8

43、8 132 176133 PIN 1 GND PAD (PIN 177) at BOTTOM Pin NamePin No.Pin NamePin No.Pin NamePin No.Pin NamePin No. SDDQM1VDD_EXT45DAI_P1089VDD_INT133 MS02DPI_P08 46VDD_INT90FLAG0134 SDCKE3DPI_P07 47VDD_EXT91FLAG1135 VDD_INT4VDD_INT48DAI_P2092FLAG2136 CLK_CFG15DPI_P09 49VDD_INT93NC137 ADDR06DPI_P10 50DAI_P0

44、8 94FLAG3138 BOOT_CFG07DPI_P1151DAI_P14 95NC139 VDD_EXT8DPI_P12 52DAI_P04 96NC140 ADDR19DPI_P13 53DAI_P18 97VDD_EXT141 ADDR210DPI_P14 54DAI_P17 98NC142 ADDR311DAI_P0355 DAI_P16 99VDD_INT143 ADDR412NC56DAI_P12 100TRST144 ADDR513VDD_EXT57DAI_P15 101NC145 BOOT_CFG114NC58VDD_INT102EMU146 GND15NC59DAI_P1

45、1 103DATA0147 ADDR616NC60VDD_EXT104DATA1148 ADDR717NC61VDD_INT105DATA2149 NC18 VDD_INT62BOOT_CFG2106 DATA3150 NC19NC63VDD_INT107TDO151 ADDR820NC64AMI_ACK108DATA4152 ADDR921VDD_INT65GND 109VDD_EXT153 CLK_CFG022NC66THD_M110DATA5154 VDD_INT23NC67THD_P111DATA6155 CLKIN24VDD_INT68VDD_THD112VDD_INT156 XTA

46、L25NC69 VDD_INT113DATA7157 ADDR1026WDTRSTO70VDD_INT114TDI158 SDA1027NC71MS1115SDCLK159 VDD_EXT28VDD_EXT72VDD_INT116VDD_EXT160 VDD_INT29DAI_P07 73WDT_CLKO117DATA8161 ADDR1130DAI_P13 74WDT_CLKIN118DATA9162 ADDR1231DAI_P19 75VDD_EXT119DATA10163 ADDR1732DAI_P0176 ADDR23120TCK164 ADDR1333DAI_P02 77ADDR22

47、121DATA11165 VDD_INT34VDD_INT78ADDR21122DATA12166 ADDR1835NC79VDD_INT123DATA14167 RESETOUT/RUNRSTIN36NC80ADDR20124DATA13168 VDD_INT37NC81ADDR19125VDD_INT169 DPI_P01 38NC82VDD_EXT126DATA15170 DPI_P02 39NC83ADDR16127SDWE171 DPI_P0340VDD_EXT84ADDR15128 SDRAS172 VDD_INT41VDD_INT85VDD_INT129RESET173 DPI_

48、P0542DAI_P0686ADDR14130TMS174 DPI_P04 43DAI_P0587AMI_WR131SDCAS175 DPI_P06 44 DAI_P0988AMI_RD132VDD_INT176 GND177* * at BOTTOM A3V56S40GTP-60 (DIGITAL : IC252 / IC262 / IC272 / IC282) Block Diagram A3V56S30GTP A3V56S40GTP 256M Single Data Rate Synchronous DRAM Revision 1.0 May, 2013 Page 2 / 39 CLK

49、: Master Clock DQM : Output Disable / Write Mask (A3V56S30GTP) CKE : Clock Enable U,L DQM : Output Disable / Write Mask (A3V56S40GTP) /CS : Chip Select A0-12 : Address Input /RAS : Row Address Strobe BA0,1 : Bank Address /CAS : Column Address Strobe VDD : Power Supply /WE : Write Enable VDDQ : Power Supply for Output DQ0-7 : Data I/O (A3V56S30GTP) VSS : Ground DQ0-15 : Data I/O (A3V56S40GTP) VSSQ : Ground for Output BA0 BA1 VDD DQ0 VDDQ DQ1 DQ2 VSSQ DQ3 DQ4 VDDQ DQ5