Marantz-AV8805-pre-sm 电路图 维修手册.pdf

《Marantz-AV8805-pre-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Marantz-AV8805-pre-sm 电路图 维修手册.pdf（194页珍藏版）》请在收音机爱好者资料库上搜索。

1、AV Pre Tuner / AV Pre Amplifier AV8805 Click here! On-line service parts list ONLINE PARTS LIST (P5) WEB owners manual NA: EU: AP: JP: Upload is planned for the time of a future press release. BEFORE SERVICING THIS UNIT ELECTRICAL MECHANICAL REPAIR INFORMATION UPDATING Service Manual Ver. 1 Confiden

2、tial Forpurposesofimprovement,specificationsanddesignaresubjecttochangewithoutnotice. Please use this service manual whenreferringtotheoperatinginstructionswithoutfail. Some illustrations usedinthisservicemanualareslightlydifferentfromtheactualset. RadioFans.CN 收音机爱 好者资料库 BEFORE SERVICING THIS UNIT

3、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 Initializing this Unit JIG

4、 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 customer, be sure to car

5、ry 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 chassis to either side of the power cord is less than 460 kohms, the set is defective. Be sure to test for leakage current with the AC plug in

6、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 are labeled on the c

7、abinets, 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 get an electric sho

8、ck. 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 energized. Caution c

9、oncerning 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 designated parts! The

10、 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 schematic diagrams and p

11、arts 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 boards. Care should also

12、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 disconnected when s

13、ervicing have been put back in their original positions, check that no serviced parts have deteriorate 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. (Insulation check procedure) Un

14、plug 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 terminal, input terminal, et

15、c.) 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 higher rat- ings (rat

16、ed 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 the designated part

17、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 Servicing This Unit

18、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 either (1) a leakage curr

19、ent 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 is identified and reme

20、died. 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 CONDITION. (4) CIRCUI

21、T 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 band (1 M ohm) that

22、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. Because the static elect

23、ricity 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 Servicing This Unit Elect

24、ricalMechanicalRepair 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 into the address bar o

25、f 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 parts table from the Asse

26、t 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 in which the search p

27、art 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 without specifying its pa

28、rt number can not be supplied. 4. Part indicated by mark is not illustrated in the exploded 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 This Unit ElectricalMechanicalRepai

29、r InformationUpdating 5 Product SKU SKU Code AV8805/U1BAYG AV8805/N1BAYJ AV8805/K1BAYF AV8805/FBAYH 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 serial numb

30、er 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 the power

31、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 initialize the

32、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. Use the fo

33、llowing 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 (See JIG FOR SERVICING) X MOVIE MUSIC JIG FOR SERVICING Initializing this Unit POST-SERVICE PRECAUTIONS Before Servicing This Unit Electri

34、calMechanicalRepair InformationUpdating 7 ELECTRICAL 回路図 SCH01_DIGITAL CONNECT SCH02_MAIN CPU SCH03_EXPANDER SCH04_AUDIO PLD SCH05_DIR, DA SUPPLY SCH06_DSP1 SCH07_DSP2 SCH08_HDMI SUPPLY SCH09_DECODER SCH10_HDMI SW2 SCH11_HDMI SW1 SCH12_IP, OSD SCH13_IP, OSD DDR SCH14_VIDEO PLD SCH15_HDMI TX SCH16_eA

35、RC SCH17_NET MODULE CONNECT SCH18_ADC, ZONEDAC SCH19_MAIN DAC SCH20_SIDE CONNECT SCH21_AUDIO, VIDEO CONNECT SCH22_AUDIO VOLUME SCH23_PREOUT SCH24_ANALOG VIDEO SCH25_CONNECT SCH26_HDAM SCH27_FRONT HDMI_USB SCH28_232C/XLR_IN SCH29_FRONT SCH30_HDAM CONNECT SCH31_SMPS SCH32_XLR_OUT(1/3) SCH33_XLR_OUT(2/

36、3) SCH34_XLR_OUT(3/3) SCH35_PHONO PRINTED CIRCUIT BOARDS DIGITAL AUDIO VIDEO, CONNECT-1, CONNECT-2 FRONT, VOL, HP, DOOR SW, HP HOLDER XLR OUT Aside, SW XLR OUT, HDAM CONNECT XLR OUT Bside, PHONO, 5V REG, SMPS HDAM, FRONT HDMI USB, CONNECT3, SIDE CONNECT, XLR_IN REMOTE_IO, DAC LEVEL DIAGRAM FRONT ch

37、CENTER / SURROUND ch SUBWOOFER ch SURROUND BACK / HEIGHT1 / HEIGHT2 / HEIGHT3 ch ZONE2 / ZONE3 ch BLOCK DIAGRAM ANALOG AUDIO DIAGRAM DIGITAL AUDIO DIAGRAM VIDEO DIAGRAM POWER DIAGRAM SEMICONDUCTORS 1. ICs 2. FL DISPLAY 3. Remote Code Table Before Servicing This Unit ElectricalMechanicalRepair Inform

38、ationUpdating 8 回路図 SCH01_DIGITAL CONNECT All Ref.No. has been described in the parts list are four digits. But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding 0 in the parts list. ANALOG VIDEOAUDIO SIGNALTMDS SIGNALGND LINEP

39、OWER- LINEPOWER+ LINE DIGITAL_UNIT 8U-310225(1/17) BLM21PG221L6006 BLM21PG221L6002 BLM21PG221L6004 BLM21PG221L6005 BLM21PG221L6003 R6014 100 2SC4617EB Q6008 Q6006 OPEN KDS160D6002 0.1C6013 R6007 OPEN R6013100K R6006 OPEN C6010OPEN C6011 OPEN C6009 OPEN C6012 1u R600910K 0.1C6014 KDS160 D6001 R601247

40、K R601010K R60080 OPEN U6002 R6011 4.7K Q6007 OPEN M3.3V DGND SWM3.3V 40P-FFC N6004 33P-SOCKET(C125Z2) N6012 33P-SOCKET(C125Z2) N6014 33P-FFC N6010 33P-FFC N6011 8P-PHs N6002 7P-PHs N6003 DV5V DV3.3V 19P-FFC N6005 Q6002 KRC402E-RTK BLM21PG221 L6001 C60020.1 Q6003 2SA2018 100K R6004 C6001OPEN Q6005 F

41、DC608PZ 10K R6003 R6002 3.3K C60030.1 Q6004 KRC402E-RTK R6001 10K OPEN R5075 C6018OPEN 4.7uC6020 0.1C6019 100/6.3C6016 100/6.3C6015 C6017OPEN 4.7uC6022 OPENC6023 0.1C6021 C9116330P BLM21PG221 L9100 R9110 15K C91220.1 C91210.01 C91201000P C910110/6.3 C911710/6.3 R9108 47K C911822/6.3 BLM21PG221 L9104

42、 R9109 0 C91031u XCL212B082DR U9201 SWM5V DA+5V VCOM DA3.3V DACGND D5V DGND 7P-EHs N6001 OPENR9217 OPEN.C6024 R6005 OPEN Q6001 HN1K02FU OPENC6004 0R6015 To_8U-210232-6(N5907) CONNECT-1_UNIT To_8U-210233-1(N5001) DAC_UNIT(1/2) To_8U-210232-1(N9018) A.AUDIO/VIDEO_UNIT(1/4) To_8U-110211-1(N1012) FLD_UN

43、IT To_8U-110215-6(N6513) SMPS_UNIT To_8U-210233-2(N9037) SIDE_CONNECT_UNIT To_8U-210234-2(N3803) 232C/XLR_IN_UNIT NET_FACT_RST Z2NETADC_L DAC_RST2 TU_RST Z2NETADC_R TRIGGER2 AVSDA DAC_CCLK TU_SCL TU_INT SEL_CLK FANDET MAINADC_RST AVSCL ZONESTB THERMAL_D(RSV) AMPSIGDET 232I_MO DAC_RST1 ZONECLK THERMA

44、L_H CURRENTDET DAC_CCS1 ZONEDATA CURRENT_DET2(RSV) SEL_DATA 232O_MI TU_SDA DAC_CDATA TU_SEN VOL_CLK TRDET KEY2 ISELA FL_DATA MAIN_RST KEY1 DOORDET GREEN_LED KILLIR FL_CLK RED_LED RCOUT RC_IN FL_RST VSELB FL_CE1 VOL_DATA FLASHERIN POWERKEY VSELA FL_CE2 KEY3 ISELB FL_CTRL MAIN_BDOWN B501 M3-SIDE OPT1

45、OPT2 COAX1 COAX2 Z2DAC_DEMP Z3DAC_DEMP DECIN_CR DECIN_Y DECIN_CB DECIN_V MAINPW CPU_POWER REMOTE_POWER Z2DAC_MUTE_PO NETDAC_MCLK_PO ADC_LRCK_PO NETDAC_MUTE_PO NETDAC_BCK_PO ADC_DATA_PI ADC_BCK_PO NETDAC_LRCK_PO NETDAC_DATA_PO Z3DAC_MUTE_PO ADC_MCK_PO 11P-SOCKET(C125Z2) N9030 DLHD_PO Z2DIR-DAC_MCK Z2

46、DIR-DAC_BCK Z2DIR-DAC_LRCK Z2DIR-DAC_DATA Z3DIR-DAC_BCK Z3DIR-DAC_DATA Z3DIR-DAC_LRCK Z3DIR-DAC_MCK DAC5_LRCK_SBR_PO DAC7_H2_H2L_PO DAC6_H1_H1L_PO DAC4_LRCK_RSV_PO DAC_BCK1_PO DAC5_SB_SBL_PO DAC8_LRCK_H3R_PO DAC2_CSW_C_PO DAC8_H3_H3L_PO DAC3_LRCK_SR_PO DAC1_F_FL_PO DAC_MCLK1_PO DAC3_S_SL_PO DAC1_LRC

47、K_FR_PO DAC4_SW2RSV_SW2_PO DAC2_LRCK_SW1_PO DAC6_LRCK_H1R_PO DAC_MCLK2_PO DAC_BCK2_PO DAC7_LRCK_H2R_PO VOLMUTE DAC_CCS2 TRIGGER1 MDAX_LED ASODET AEXP_OE AEXP_CLK MIC_DET DIRECT_LED ILLUMI_LED DCDET AEXP_DA_6OUT AEXP_STB H/P_DET AC_RL1 OPEN N6006 OPENC6005 To_8U-210233-2(N9035) SIDE_CONNECT_UNIT To_8

48、U-110211-1(N6002) FLD_UNIT To_8U-210234-2(N3851) 232C_XLR_IN_UNIT 1 VDD2 VSS 3 PDN 4 OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 1 2 3 4 5

49、6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1 2 34 5 6 2LX 6CE 7AVIN 8GND 9PVIN 10L111L2 1NC 5FB 4NC 3LX 1 2 3 4 5 6 7 D 6 G2 S 1 D 3 G5 S 4 INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 1 2 3 4 5 6 7 8 9 10 11 INPUT INPUT