HarmanKardon-AVR158_230-avr-sm维修电路原理图.pdf
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1、Harman Kardon Service Manual AVR 156/230 + AVR 158/230 5.1 CHANNEL A/V RECEIVERS Released EU2011 Harman Consumer Group, Inc. Rev 0, 10/2011 8500 Balboa Boulevard Northridge, California 91329 CONTENTS EXPLODED VIEW AND PARTS, AVR 156 15 EXPLODED VIEW AND PARTS, AVR 158 16 ELECTRICAL PARTS LIST, AVR 1
2、56 17 ELECTRICAL PARTS LIST, AVR 158 45 SEMICONDUCTOR PINOUTS 73 PCB DRAWINGS 115 BLOCK DIAGRAMS 125 WIRING DIAGRAM 127 AMP BIAS ADJUSTMENT 128 SCHEMATIC DIAGRAMS 129-139 ESD WARNING 2 FRONT AND REAR PANELS 3 REMOTE CONTROL 7 RESET REMOTE AND PROCESSOR 9 TROUBLESHOOTING GUIDE 10 BASIC SPECIFICATIONS
3、 11 PACKAGE LISTS AND PARTS, AVR 156 12 PACKAGE LISTS AND PARTS, AVR 158 13 DISASSEMBLY 14 Harman KardonAVR 156+158/230V Service ManualPage 1 of 139RadioFans.CN 收音机爱 好者资料库Eachprecautioninthismanualshouldbefollowedduringservicing.Components identified with the IEC symbolin the parts list are special
4、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 theparts list in this manual. Leakage-current or resistance measurements must be made to determine t
5、hat exposed parts are acceptablyinsulated from the supply circuit before retuming the product to the customer.Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ES devi
6、ces are integrated circuits and some field effect transistors andsemiconductor chip components.The following techniques should be used to help reduce the incidence of component damage caused by static electricity.1. Immediately before handling any semiconductor component or semiconductor-equipped as
7、sembly, drain off any electrostatic charge onyour body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device,which should be removed for potential shock reasons prior to applying power to the unit under test.2. After removing an elec
8、trical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, toprevent electrostatic charge build-up or exposure of the assembly.3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.4. Use only an anti-static solder removal device.
9、 Some solder removal devices not classified as anti-static can generate electrical chargessufficient to damage ES devices.5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices.6. Do not remove a replacement ES device from its protective package
10、 until immediately before you are ready to install it. (Most replacementES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.)7. Immediately before removing the protective material from the leads of a replacement ES devi
11、ce, touch the protective material to thechassis 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 safety precautions.8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless
12、motion such as the brushing togetheror your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.CAUTION : Harman KardonAVR 156+158/230V Service ManualPage 2 of 139RadioFans.CN 收音机爱 好者资料库4AVR 158Front-Panel ControlsFront-
13、Panel Controlspower IndicatorMessage displayVolume knobSurround Mode Select buttonsSet buttonIr Sensorpower buttonleft/right buttonsheadphone JackSource Select buttonstuning Mode buttondigital Input buttonSurround-Mode category buttonup/down buttons/ tuning buttonsuSb portAux Analogue Audio Input co
14、nnectorchannel level control button0296CSK - HK (x65Series) AVR158-230 OM HKP1992, WORK05.indd 430/06/11 13:59:59Harman KardonAVR 156+158/230V Service ManualPage 3 of 1395AVR 158ENGLISHFront-Panel Controls, continuedFront-Panel Controls, continuedPower indicator: this led has three possible modes:le
15、d is off: Indicates that the AVr is unplugged or the rear-panel Main power switch is off.led glows amber: Indicates that the AVr is in the Standby mode. led glows white: Indicates that the AVr is turned on. IMPORTANT NOTE: If the protect message ever appears on the AVrs front-panel Message display,
16、turn off the AVr and unplug it from the Ac outlet. check all speaker wires for a possible short circuit (the “+” and “” conductors touching each other or both touching the same piece of metal). If a short circuit is not found, bring the unit to an authorised harman kardon service centre for inspecti
17、on and repair before using it again.IR sensor: this sensor receives infrared (Ir) commands from the remote control. It is important to ensure that the sensor is not blocked. Set button: press this button to select the currently highlighted menu item.Message display: Various messages appear in this t
18、wo-line display in response to commands and changes in the incoming signal. In normal operation, the current source name appears on the upper line, while the surround mode is displayed on the lower line. when the on-screen display menu system (oSd) is in use, the current menu settings appear.Surroun
19、d-Mode Select buttons: After you have selected the desired surround-mode category, press these buttons to select a specific mode within the category, such as to change from dolby pro logic II Movie mode to logic 7 Movie mode. Surround-mode availability depends on the nature of the source input signa
20、l, i.e., digital versus analogue, and the number of channels encoded within the signal.Volume knob: turn this knob to raise or lower the volume.Power button: press this button to turn the AVr on or to place it in the Standby mode.Tuning Mode button: this button toggles between manual (one frequency
21、step at a time) and automatic (seeks frequencies with acceptable signal strength) tuning mode. It also toggles between stereo and mono modes when an FM station is tuned in.Channel Level Control button: press this button to activate the channel-level adjustment feature. After pressing this button, us
22、e the up/down buttons to select the channel for adjustment and use the left/right buttons to adjust the channels level.Digital Input button: press this button to change the audio input for the current source. use the left/right buttons to cycle through the available inputs. Although you can assign a
23、ny digital audio input to any source, the analogue audio inputs are all permanently dedicated to the source with which they are labeled.Left/Right buttons: use these buttons to navigate the AVrs menus.Up/Down buttons/Tuning buttons: use these buttons to navigate the AVrs menus. when the radio is the
24、 active source, use these buttons to tune stations according to the setting of the tuning Mode button (see above).Surround-Mode Category button: press this button to select a surround-sound category. each press changes the surround-mode category: Auto Select, Virtual, Stereo, Movie, Music and Video
25、game. to change the specific surround-sound mode within the category, use the Surround Mode Select buttons. See Audio processing and Surround Sound, on page 20, for more information on surround modes.Headphone jack: connect a 1/4 stereo headphone plug to this jack for private listening. Source Selec
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