HarmanKardon-HK3390-rec-sm维修电路原理图.pdf

harman/kardon HK3390 HK3390 STEREO RECEIVER SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS.4 PACKAGING.5 FRONT PANEL CONTROLS.6 REAR PANEL CONNECTIONS.8 REMOTE CONTROL FUNCTIONS.10 CONNECTIONS/INSTALLATION.12 OPERATION.18 TROUBLESHOOTING GUIDE.22 PROCESSOR RESET.22 DISASSEMBLY.23 UNIT EXPLODED VIEW.26 EXPLODED VIEW PARTS LIST27 AMP BIAS ADJUSTMENT.28 BLOCK DIAGRAM.29 PCB DRAWINGS30 ELECTRICAL PARTS LIST.36 SEMICONDUCTOR PINOUTS.53 SCHEMATICS.71 WIRING DIAGRAM.74 harman/kardon, Inc. 250 Crossways Park Dr. Released 2008 Woodbury, New York 11797 Rev0 6/2008 Discontinued XXXX RadioFans.CN Eachprecautioninthismanualshouldbefollowedduringservicing. 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 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 components 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 electricity. 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 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 grounded-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 change 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 conductive 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 safety 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 : HK3390 harman/kardonharman/kardon RadioFans.CN 2 1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal partsintheunit. 2. Be sure that any protective devices such as nonmetallic control knobs, insulating fish- papers,cabinetbacks,adjustmentand compartment covers or shields, isolation resistor-capacitynetworks,mechanical insulators, etc. Which were removed for the servicingareproperlyre-installed. Before returning the unit to the user, perform the following safety checks : 3. Be sure that no shock hazard exists ; check for leakage currentusingSimpsonModel229LeakageTester,standard equipment item No. 21641, RCA Model WT540A or use alternate method asfollows : Plug the power cord directly Into a 120 volt AC receptacle (do not use an Isolation Transformer for this test). Using two clip leads, connect a 1500ohms,10wattResistorparalleledbya0.15uFcapacitor,inserieswithallexposedmetalcabinetpartsandaknownearthground,such as a water pipe or conduit. Use a VTVM or VOM with 1000 ohms per volt, or higher sensitivity to measure the AC voltage drop across the resistor. (See diagram) Move the resistor connection to each exposed metal part having a return path to the chassis (antenna, metal, cabinet,screwheads,knobsandcontrolshafts,escutcheon,etc.)andmeasuretheACvoltagedropacrosstheresistor.(Thistestshouldbe performedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningthe unittotheowner. HK3390 harman/kardonharman/kardon RadioFans.CN 3 25 HK 3390 TECHNICAL SPECIFICATIONS Audio Section Stereo Mode: Continuous Average Power (FTC): 80 Watts per channel, 20Hz 20kHz, <0.07% THD, both channels driven into 8 ohms 100 Watts per channel, 20Hz 20kHz 80dB IF Rejection:100dB Tuner Output Level:1kHz, 100kHz, Dev 500mV AM Tuner Section Frequency Range:520 1720kHz Signal-to-Noise Ratio:40dB Usable Sensitivity:Loop 500V/M Distortion:1kHz, 50% Mod 0.8% Selectivity:10kHz, 25dB Video Section Television Format:NTSC/PAL/SECAM Signal Format:Composite Input Level:1Vp-p Input Impedance:75 Ohms, unbalanced Sync Polarity:Negative Output Level:1Vp-p Output Impedance:75 Ohms, unbalanced Video Frequency Response:10Hz 10MHz General Power Requirement:AC 120V/60Hz Power Consumption:3W standby, 200W maximum (both channels driven) Dimensions:(Product)(Shipping) Width:17.3 (440mm)22 (560mm) Height:6.6 (168mm)10.6 (270mm) Depth:15 (382mm)18.3 (465mm) (Product)(Shipping) Weight:20.9 lb (9.5kg)25.1 lb (11.4kg) Depth measurement includes knobs, buttons and terminal connections. Height measurement includes feet and chassis. All features and specifications are subject to change without notice. Harman Kardon is a trademark of Harman International Industries, Incorporated, registered in the United States and other countries. Designed to Entertain is a trademark, of Harman International Industries, Incorporated. CEA is a registered trademark of the Consumer Electronics Association. iPod is a registered trademark of Apple Inc., registered in the U.S. and other countries. iPhone is a trademark of Apple Inc. Please register your product on our Web site at . Note:Youll need your serial number. At the same time, you can choose to be notified about our new products and/or special promotions. HK1695 3390OM 4/11/08 3:29 PM Page 25 4 HK3390 harman/kardonharman/kardon HK3390HK 3390 visit 5 7 FRONT-PANEL CONTROLS Power Indicator:This LED has two modes.When power is turned off, the LED is amber to indicate that the receiver is plugged in and ready to be turned on.When the receiver is turned on, the LED turns white. Power Switch:This electrical switch turns the receiver on for playback, or leaves it in Standby mode for quick turn-on using the remote control. Phono Source Selector:Press this button to select a turntable connected to the Phono Inputs as the source. CD Source Selector:Press this button to select the device connected to the CD Inputs as the source. Video Source Selectors:Press any of these buttons to select the device connected to the corresponding Audio and Video Inputs for playback. Remember to turn on the source device, to connect the Video Monitor Output to your video display and to turn on your video display and select the correct Video Input. NOTE: The Video 3 source device may be connected to either the front- or rear-panel connectors.To select the desired device, press the Video 3 Source Selector repeatedly.The VIDEO 3 message indicates that the rear-panel inputs are active, and the The VIDEO F message indicates the front-panel inputs have been selected. Tape Source Selector:Press this button to select the device connected to the Tape/CDR Audio Inputs as the source. If you are making a recording using a three-head tape deck or another unit with off-head playback, the T-MON message in the Message Display will flash when the recording is being monitored. Speaker 1/2:Press the left side of this button to enable the HK 3390 to output audio to the speakers connected to the Speaker 1 Outputs, and press the right side of the button to enable the Speaker 2 Outputs.You may enable or disable both sets of speaker outputs simultaneously.This feature is a convenient way of hearing audio in more than one room at a time, although the same source material will be played through both sets of speakers. Message Display:Various messages appear in this display in response to commands. Tuning:Press either side of this button to tune a radio station.Tap the button briefly to tune one frequency step at a time, or press and hold the button to seek the next frequency with an acceptably strong signal. Preset Scan:Press this button once to scan through the stations you have previously programmed as presets. Each station will play for five seconds before the tuner skips to the next preset station. Press the button a second time to select the current station. If no presets have been programmed, the 0 PRESET message will be displayed. Preset Stations:Press this button to select a preset radio station. If no presets have been programmed, the 0 PRESET message will be displayed. Tuner Band:Press this button to select the tuner as the source, or to select the AM (left side of button) or FM (right side of button) band. FM Mode:This button toggles between Stereo and Mono modes when an FM station is tuned. Mono mode may improve reception of weaker signals. Sleep:Press this button to activate the sleep timer, which shuts off the receiver after a programmed period of time up to 90 minutes. Dimmer:Some people find the front-panel display distracting. Press this button once to dim the displays to half-brightness, and a second time to turn the displays completely off.The Power Indicator will always remain lit to remind you that the receiver is turned on. Press the button a third time to return the display to normal brightness.This setting is canceled when the unit is turned off. Mute:Press this button to mute the HK 3390s speaker and headphone outputs temporarily.To end the muting, press this button or adjust the volume. Muting is also canceled when the receiver is turned off. Volume Control:Turn this knob to raise or lower the volume, which will be shown in decibels (dB) in the Message Display. Headphone Jack:Plug a 1/4 headphone plug into this jack for private listening. Bass Control:Turn the knob clockwise to boost low-frequency output by up to 10dB, or counterclockwise to cut low-frequency output by up to 10dB. Set the control to suit your taste and room acoustics. Treble Control:Turn the knob clockwise to boost high-frequency output by up to 10dB, or counterclockwise to cut high-frequency output by up to 10dB. Set the control to suit your taste and room acoustics. Balance Control:Turn the knob to adjust the relative volume of the left and right channels, which affects imaging and can compensate for room characteristics. Video 3 A/V Inputs:Connect a source component that will only be used temporarily to these jacks, such as a camera or game console, or connect an iPod using the supplied audio/video cable. HK1695 3390OM 4/11/08 3:28 PM Page 7 6 HK3390 harman/kardonharman/kardon 5Tuning15Preset1 1 Speakers 2 Preset Scan FM Mode Tuner Band Bass Control Video 3 Audio/Video Inputs Power Indicator Headphone Jack Power Switch Volume Control CD Source Selector Tape Source SelectorMessage Display Phono Source Selector Video Source Selectors Dimmer SleepMute Treble Control Balance Control NOTE: To make it easier to follow the instructions throughout the manual that refer to this illustration, a copy of this page may be downloaded from the Product Support section at . HK1695 3390OM 4/11/08 3:28 PM Page 8 7 HK3390 harman/kardonharman/kardon 99 REAR-PANEL CONNECTIONS AM and FM Antenna Terminals:Connect the included AM and FM antennas to their respective terminals for radio reception. Video 1,Video 2 and Video 3 Audio/Video Inputs:These jacks may be used to connect your video-capable source components (e.g.,VCR, DVD player, cable TV box) to the receiver. NOTE: The Video 3 source has inputs on both the front and rear panels of the HK 3390, and you may connect different devices to each set of inputs.To select between the two sets of inputs, press the Video 3 Source Selector repeatedly.When VIDEO 3 appears in the Message Display, the device connected to the rear panel has been selected.When VIDEO F appears, the device connected to the front panel has been selected. Video 1 Audio/Video Outputs:These jacks may be used to connect your VCR or another recorder. Video Monitor Output:If some of your sources use video connections, connect the Video Monitor Output to the corresponding input on your television or video display to view the sources. No video signal will be available when an audio-only source input, such as CD or Tape, is selected. Remote Infrared (IR) Input and Output:When the remote IR receiver on the front panel is blocked, such as when the HK 3390 is placed inside a cabinet, connect an optional IR receiver to the Remote IR Input jack for use with the remote control.The Remote IR Output may be connected to the Remote IR Input of a compatible source device (or other product) to enable remote control through the HK 3390.When several source devices are used, connect them in “daisy chain” fashion. AC Power Cord:After you have made all other connections, plug the AC power cord into an unswitched outlet. Switched AC Accessory Outlets:You may plug the AC power cord of one source device into each of these outlets, and it will turn on whenever you turn on the receiver. Do not use sources that consume more than 100 watts of power per outlet. Speaker 1 and 2 Outputs:Use two-conductor speaker wire to connect each set of terminals to the correct speaker. Observe the correct polarity (positive and negative connections).Always connect the positive lead to the red or white terminal on the receiver and the red terminal on the speaker. Connect the negative lead to the black terminal on both the receiver and the speaker. Use the Speaker 1/2 Selectors on the front panel or remote to select either or both pairs of speakers for playback. Subwoofer Outputs:If you have a powered subwoofer, connect these jacks to the line-level inputs on the subwoofer.The same full- range signal is output through both jacks.Thus, you have the option of connecting each jack to the line-level input on a separate subwoofer, or to use these full-range outputs to feed a remote room in a distrib