HarmanKardon-AVR247.230-avr-sm维修电路原理图.pdf

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1、 harman/kardon Service Manual AVR247/230 5 x 50W 7.1 CHANNEL A/V RECEIVER CONTENTS ESD WARNING.2 ELECTRICAL PARTS LIST.12 BASIC SPECIFICATIONS.3 SEMICONDUCTOR PINOUTS.54 TROUBLESHOOTING GUIDE.4 PCB DRAWINGS.110 PROCESSOR RESET.4 BLOCK DIAGRAM.119 PACKAGE LIST AND PARTS.5 WIRING DIAGRAM.120 DISASSEMB

2、LY.6 AMP BIAS ADJUSTMENT.121 UNIT EXPLODED VIEW AND PARTS11 SCHEMATIC DIAGRAMS.122 Released EU2008 harman/kardon, Inc. Rev 0, 05/2008 250 Crossways Park Dr. Woodbury, New York, 11797 harman/kardonAVR247/230 Service Manual Page 1 of 131 RadioFans.CN 收音机爱 好者资料库 Eachprecautioninthismanualshouldbefollow

3、edduringservicing. Components identified with the IEC symbolin the parts list are special significance to safety. When replacing a component identified with , use only the replacement parts designated, or parts with the same ratings or resistance, wattage, or voltage that are designated in the parts

4、 list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably insulated from the supply circuit before retuming the product to the customer. Some semiconductor (solid state) devices can be damaged easily by static electricity. Such compo

5、nents commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static el

6、ectricity. 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed

7、for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge build-up or exposure of the assembly. 3. Use only a grounde

8、d-tip soldering iron to solder or unsolder ES devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified as anti-static can generate electrical charges sufficient to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical c

9、hange sufficient to damage ES devices. 6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conduct

10、ive material.) 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. Be sure no power is applied to the chassis or circuit, and observe all other safe

11、ty precautions. 8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together or your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices. CAUTION :

12、harman/kardonAVR247/230 Service Manual Page 2 of 131 RadioFans.CN 收音机爱 好者资料库 TECHNICAL SPECIFICATIONS 57 ENGLISH Technical Specifications Audio Section Stereo Mode Continuous Average Power (FTC) 65Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohms 7 Channel Surround Modes Powe

13、r Per Individual Channel Front L Amplifier is in protection mode Check speaker-wire connections for shorts at receiver light around Power switch 2is reddue to possible shortand speaker ends Amplifier is in protection mode Contact your local Harman Kardon service depot due to internal problems No sou

14、nd from surround or Incorrect surround mode Select a mode other than Stereo center speakers Input is mono There is no surround information from mono sources (except with Theater and Hall surround modes) Incorrect configuration Check speaker mode configuration Stereo or Mono program material Some sur

15、round modes may not create rear-channel information from nonencoded programs Unit does not respond to Weak batteries in remote Change remote batteries remote commands Wrong device selected Press the AVR Selector5 Remote sensor is obscured Make certain front-panel sensor is visible to remote or conne

16、ct remote sensor Intermittent buzzing in tuner Local interference Move unit or antenna away from computers, fluorescent lights, motors or other electrical appliances Letters flash in the Channel Indicator Digital audio feed paused Resume play for DVD Display $and Digital Audio stops Check that Digit

17、al Signal is fed to the Digital Input selected 33230_AVR247_Eng 29/06/07 8:48 Side 56 harman/kardonAVR247/230 Service Manual Page 4 of 131 RadioFans.CN 收音机爱 好者资料库 2. Package Drawing AVR247/230 ACCESSORY-1 BOX,OUT CARTON 3 4 1 DESCRIPTIONNO CPS6A564 CQXAVR247/230 CPG1A822U 1 1 1 Q,tyPARTS NO. CPS6A56

18、5SNOW,PAD(R) 2 1 SNOW,PAD(L) SETAVR247/230SET1 5 ACCESSORY-26CQXAVR247/2301 ACCESSORY-1 1 SNOW PAD (R) 3 BOX ,OUT CARTON 5 SET 4 SNOW PAD (L)2 MICROPHONE ASSY7 ACCESSORY-2 6 MICROPHONE ASSY7CJXAVR340MICRO1 NODESCRIPTIONPARTS NO.Q,ty 1 2 3 4 5 1 7 1 1 FM 1 POL ANTCSA1A018Z1 NODESCRIPTIONPARTS NO.Q,ty

19、 9 10 11 12 13 1CPB1061WPOLY BAG CQX1A1255ZMANUAL,INSTRUCTION MANUAL ,SETUP GUIDE 1 1 BOOKLET,INFORMATIONCQE1A180Z1 STAPLECPL09053 ACCESSORY-2ACCESSORY-1 CPB1061WPOLY BAG CSA1A027ZAM LOOP ANTENNA ASSY1 CABR03P3BATTERY3 COVER ASSYCGRAVR130/230ZA REMOCON ASSYCARTAVR247/2301 POLY BAG 1 23 AM LOOP ANTEN

20、NA ASSY BATTERY ASSY 4 FM 1 POLE ANT 5 COVER ASSY POLY BAG 9 1 1CGR1A332M7H43 CQE1A220Z CPS1A6761 CPB1A176Z1 1 2 3 4 5 CGR1A331M7H431 PAD , COVER COVER A COVER B SHEET,FRONT COVER BAG , POLY CQX1A1256Z MICROPHONE ASSY A AMICROPHONE ASSTCJXAVR340MICRO1 6 BOOKLET,INFORMATIONMANUAL INSTRUCTION 11 MANUA

21、L SETUP GUIDE 12 13 1. Instruction manual assy - Accessories STAPLE 6IMAGE BROCHURESHQE1A273Z1 IMAGE BROCHURES 10 STAPLE 8 REMOCON ASSY 7 8STAPLECPL09053 harman/kardonAVR247/230 Service Manual Page 5 of 131 RadioFans.CN 收音机爱 好者资料库 1 2 1 1. Removing the Top Cabinet Remove the Screws 5 4 6 DISASSEMBLY

22、 13 11 10 7 9 13 3 12 8 7 5 6 8 9 4 3 2 1 Remove the Screws 2. Removing the Front Panel 19 6 3 4 7 Remove the Screws 4. Removing the Main PCB 1 2 5 17 1 33 Remove the Screws 3. Removing the Rear Panel AVR247/230 18 33 14 13 12 26 11 109 272930 22 21 28 765431178 25 2 15 16 23 241920 3132 harman/kard

23、onAVR247/230 Service Manual Page 6 of 131 RadioFans.CN 收音机爱 好者资料库 DISASSEMBLY PROCEDURES (AVR247) TOP-CABINET(21) REMOVAL 1. Remove 13 screws(S1,S7) and then remove the Top-cabinet. FRONT PANEL ASSY REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Disconnect the card cable betwe

24、en connector(CN72-17p) on the Fip PCB(37-1) and connector(CN72) on the Input PCB(39-1). 3. Disconnect the lead wire(BN81-8P) on the Fip PCB(37-1) from connector(CN81) on the Trans PCB(40-4). 4. Disconnect the lead wire(BN22-6P) on the Phone PCB(37-5) from connector(CN22) on the Input PCB(39-1). 5. D

25、isconnect the lead wire(BN18-5P) on the Phone PCB(37-5) from connector(CN18) on the Input PCB(39-1). 6. Disconnect the lead wire(BN10-4P) on the Volume PCB(37-6) from connector(CN10) on the Input PCB(39-1). 7. Disconnect the lead wire(BN41-6P) on the Volume PCB(37-6) from connector(CN41) on the Vide

26、o PCB(41). 8. Disconnect the lead wire(BN90-2P) on the Main PCB(38-1) from connector(CN86) on the Moms PCB(37-4). 9. Remove 1 screw(S10) and then lead wire(JW82-1P,JW83-1P) on the Phone PCB(37-5). 10 .Remove 1screw(S10) and then lead wire(JW84-1P) on the Volume PCB(37-3). 11. Remove 10 screws(S1) an

27、d then remove the Front Panel ASSY. Volume PCB(37-6) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Pull out the Volume Knob ASSY. 4. Disconnect connector(CN84) on the Volume PCB(37-6) from the lead wire(BN84-5P)

28、on the Fip PCB(37-1). 5. Disconnect the lead wire(BN92-5P)on the Volume PCB(37-6) from connector(CN92) on the Phone PCB(37-5). 6. Remove 8 screws(S2,S14), and then remove the Volume PCB(37-6). PHONE PCB(37-5) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Pane

29、l ASSY, referring to the previous step. 3. Disconnect connector(CN92) on the Phone PCB(37-5) from the lead wire(BN92-5P) on the Volume PCB(37-6). 4. Disconnect connector(CN85)on the Phone PCB(37-5) from the lead wire(BN85-3P) on the Fip PCB(37-1). 5. Remove 2 screws(S2) and then remove the Phone PCB

30、(37-5). POWER LED PCB(37-3) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Disconnect connector(CN88) on the Power Led PCB(37-3) from the lead wire(BN88-4P) on the Fip PCB(37-1) . 4. Remove 2 screws(S2) and then r

31、emove the Power led PCB(37-3). FIP PCB(37-1) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Disconnect the lead wire(BN84-5P) on the Fip PCB(37-1) from connector(CN84) on the Volume PCB(37-6). 4. Disconnect the le

32、ad wire(BN85-3P) on the Fip PCB(37-1) from connector(CN85) on the Phone PCB(37-5). 5. Disconnect the lead wire(BN88-4P) on the Fip PCB(37-1) from connector(CN88) on the Power Led PCB(37-3). harman/kardonAVR247/230 Service Manual Page 7 of 131 RadioFans.CN 收音机爱 好者资料库 6. Disconnect the connector (CN89

33、) on the Fip PCB(37-1) from lead wire(BN89-4P) on the Key PCB(37-2). 7. Remove 3 screws(S2) and then remove the Guide PCB(37-8) MM 200V DESCRIPTION The 74LCX32 is a low voltage CMOS QUAD 2-INPUT OR GATE fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ide

34、al for low power and high speed 3.3V applications; it can be interfaced to 5V signal environment for inputs. It has same speed performance at 3.3V than 5V AC/ACT family, combined with a lower power consumption. All inputs and outputs are equipped with protection circuits against static discharge, gi

35、ving them 2KV ESD immunity and transient excess voltage. 74LCX32 LOW VOLTAGE CMOS QUAD 2-INPUT OR GATE WITH 5V TOLERANT INPUTS Figure 1: Pin Connection And IEC Logic Symbols Table 1: Order Codes PACKAGET MM 200V DESCRIPTION The 74LCX74 is a low voltage CMOS DUAL D-TYPE FLIP FLOP WITH PRESET AND CLEA

36、R NON INVERTING fabricated withsub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power and high speed 3.3V applications; it can be interfaced to 5V signal environment for inputs. A signal on the D INPUT is transferred to the Q OUTPUT duringthe positive going

37、 transitionof the clock pulse. CLR and PR are independent of the clock and accomplished by a low setting on the appropriate input. It has same speed performance at 3.3V than 5V AC/ACT family, combined with a lower power consumption. Allinputsandoutputsareequippedwith protection circuits against stat

38、ic discharge, giving them 2KV ESD immunity and transient excess voltage. 74LCX74 LOW VOLTAGE CMOS DUAL D-TYPE FLIP FLOP WITH 5V TOLERANT INPUTS PIN CONNECTION AND IEC LOGIC SYMBOLS ORDER CODES PACKAGETUBET in HD Only Mode and Simultaneous HD/SD Mode: Y/Green HD Analog Output. DAC E O In SD Only Mode

39、: Luma/Blue/U Analog Output; in HD Only Mode and Simultaneous HD/SD Mode: Pr/Red Analog Output. DAC F O In SD Only Mode: Chroma/Red/V Analog Output; in HD Only Mode and Simultaneous HD/SD Mode: Pb/Blue HD Analog Output. P_HSYNC I Video Horizontal Sync Control Signal for HD in Simultaneous SD/HD Mode

40、 and HD Only Mode. P_VSYNC I Video Vertical Sync Control Signal for HD in Simultaneous SD/HD Mode and HD Only Mode. P_BLANK I Video Blanking Control Signal for HD in Simultaneous SD/HD Mode and HD Only Mode. S_BLANK I/O Video Blanking Control Signal for SD Only. S_HSYNC I/O Video Horizontal Sync Con

41、trol Signal for SD Only. S_VSYNC I/O Video Vertical Sync Control Signal for SD Only. Y7 to Y0 I SD or Progressive Scan/HDTV Input Port for Y Data. Input port for interleaved progressive scan data. The LSB is set up on Pin Y0. C7 to C0 I Progressive Scan/HDTV Input Port 4:4:4 Input Mode. This port is

42、 used for the Cb Blue/U data. The LSB is set up on Pin C0. S7 to S0 I SD or Progressive Scan/HDTV Input Port for Cr Red/V data in 4:4:4 input mode. LSB is set up on Pin S0. RESET I This input resets the on-chip timing generator and sets the ADV7322 into default register setting. RESET is an active l

43、ow signal. RSET1, RSET2 I A 3040 resistor must be connected from this pin to AGND and is used to control the amplitudes of the DAC outputs. SCLK I I2C Port Serial Interface Clock Input. SDA I/O I2C Port Serial Data Input/Output. ALSB I TTL Address Input. This signal sets up the LSB of the I2C addres

44、s. When this pin is tied low, the I2C filter is activated, which reduces noise on the I2C interface. VDD_IO P Power Supply for Digital Inputs and Outputs. VDD P Digital Power Supply. VAA P Analog Power Supply. VREF I/O Optional External Voltage Reference Input for DACs or Voltage Reference Output (1

45、.235 V). EXT_LF I External Loop Filter for the Internal PLL. RTC_SCR_TR I Multifunctional Input. Real time control (RTC) input, timing reset input, subcarrier reset input. I2C I This input pin must be tied high (VDD_IO) for the ADV7322 to interface over the I2C port. GND_IO Digital Input/Output Grou

46、nd. TEST0 to TEST5 I Not used. Tie to DGND harman/kardonAVR247/230 Service Manual Page 62 of 131 RadioFans.CN 收音机爱 好者资料库 1 Features Low-voltage and Standard-voltage Operation 2.7 (VCC = 2.7V to 5.5V) 1.8 (VCC = 1.8V to 5.5V) Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K), 1024 x 8 (8K

47、) or 2048 x 8 (16K) Two-wire Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression Bidirectional Data Transfer Protocol 100 kHz (1.8V) and 400 kHz (2.7V, 5V) Compatibility Write Protect Pin for Hardware Data Protection 8-byte Page (1K, 2K), 16-byte Page (4K, 8K, 16K) Write Modes Pa

48、rtial Page Writes Allowed Self-timed Write Cycle (5 ms max) High-reliability Endurance: 1 Million Write Cycles Data Retention: 100 Years Automotive Grade and Lead-free/Halogen-free Devices Available 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 5-lead SOT23, 8-lead TSSOP and 8-ball dBGA2 Packages Die Sales: Wafer Form, Waffle Pack and Bumped Wafers Description The AT24C01A/02/04/08A/16A provides 1024/2048/4096/8192/16384 bits of serial electrically erasable and programmable read-o