HarmanKardon-HK3770-rec-sm电路图 维修手册.pdf

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1、Harman Kardon Service Manual HK 3770 2x120 W stereo receiver Released EU2014 Harman Consumer Group, Inc. Rev 0, 00/20XX 8500 Balboa Boulevard Northridge, California 91329 CONTENTS RESET PROCEDURE 15 FIRMWARE UPGRADE INSTRUCTIONS 16 BILL OF MATERIALS 19 IC PINOUTS 50 TRANSISTOR PINOUTS 64 PRINT DRAWI

2、NGS 88 BLOCK DIAGRAMS 106 WIRING DIAGRAM 108 SCHEMATIC DIAGRAMS 109 BOX CONTENTS 2 FRONT PANEL FUNCTIONS 4 BACK PANEL FUNCTIONS 5 REMOTE CONTROL FUNCTIONS 6 TROUBLESHOOTING 8 TECHNICAL SPECIFICATIONS 9 PACKAGE DRAWING 11 EXPLODED VIEW AND PARTS 12 DISASSEMBLY 13 BIAS ADJUSTMENT 14 RadioFans.CN 收音机爱

3、好者资料库 Introduction 3 HK 3700/3770 Introduction thank you for purchasing the Harman Kardon HK 3700/3770 stereo receiver with which, you are about to begin many years of listening enjoyment. the HK 3700/3770 stereo receiver has been custom-designed to provide excitement and power of the cinema experie

4、nce in your living room. to obtain maximum enjoyment from your new soundbar speaker system, we urge you to take a few minutes to read through this manual, which: contains a description of the features of HK 3700/3770 stereo receiver Lists the items included in the box describes the HK 3700/3770 ster

5、eo receiver and its components Includes step-by-step instructions that will help you set up and get started with the HK 3700/3770 stereo receiver In addition, a few minutes spent learning the functions of the various controls will allow you to take advantage of all the power and refinement of the HK

6、 3700/3770 stereo receiver. CONTACT US: If you have any questions about HK 3700/3770 receiver, its installation or its operation, please contact your retailer or custom installer, or visit our website at: Description and Features Harman Kardon heritage and brand legacy has been its two-channel audio

7、 for many years. as more and more audio content comes from multiple digital-based sources, such as a smart tV, smartphone or tablet, playback convenience becomes the driving factor in entertainment while sound quality remains the foundation of Harman Kardon. the new Harman Kardon HK stereo receivers

8、 try to bring the best of both the worlds: beautiful two channel stereo sound and latest digital-based sources access. the following are the features and benefits of the Harman Kardon 3700/3770 stereo receivers: Harman Kardon sound this has been the foundation of the brand for many years. High power

9、 high current capability with stable power output even with variation of the load impedance of the speaker drivers. connectivity HK stereo receivers feature the best of both the worlds: classic analog inputs including phono input, FM/aM radio as well as new digital connectivity with bluetooth, netwo

10、rk dLna, vtuner internet radio, uSb, iOS direct thru uSb with built in superior dac and optical digital input. distinctive and elegant design based on the current design and chassis of aVR1x1 series. advance remote control the new stereo receivers also support iOS and android app to fully control th

11、e stereo receiver from Harman Kardon Remote app for maximum ease and enjoyment. Included Items the HK 3700/3770 stereo receiver consists of the following accessories: System remote control ezSet/eQ microphone Harman KardonHK 3770 Service Manual Page 2 of 120 RadioFans.CN 收音机爱 好者资料库 HK 3700/3770 Impo

12、rtant Safety Information 4 aM loop antenna FM Loop antenna two aaa batteries ac power cord IMPORTANT: If any of these accessories is missing or if any part of your HK 3700/3770 system fails to operate properly, contact your dealer immediately. Important Safety Information Verify Line Voltage before

13、Use the HK 3700/3770 has been designed for use with 100- 240 Volt alternating current (ac). connection to a line voltage other than that for which your HK 3700/3770 is intended can create a safety and fire hazard, and may damage the unit. If you have any questions about the voltage requirements for

14、your specific model or about the line voltage in your area, contact your selling dealer before plugging the unit into a wall outlet. Do Not Use Extension Cords to avoid safety hazards, use only the power cord supplied with your unit. we do not recommend the use of extension cords with this product.

15、do not run power cords under rugs or carpets, or place heavy objects on them. damaged power cords should be replaced immediately by an authorized service center, with a cord, meeting factory specifications. Handle the AC Power Cord Gently when disconnecting the power cord from an ac outlet, always p

16、ull the plug; never pull the cord. If you do not intend to use your HK 3700/3770 for any considerable length of time, disconnect the plug from the ac outlet. Do Not Open the Cabinet there are no user-serviceable components inside this product. Opening the cabinet may present a shock hazard, and any

17、modification to the product will void your warranty. If water or any metal object such as a paper clip, wire or staple accidentally falls inside the unit, disconnect it from the ac power source immediately, and consult an authorized service center. CATV or Antenna Grounding If an outside antenna or

18、cable system is connected to this product, be certain that it is grounded so as to provide some protection against voltage surges and static charges. Section 810 of the united States national electrical code, anSI/nFpa no. 70-1984, provides information with respect to proper grounding of the mast an

19、d supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes and requirements of the grounding electrode. Note to CATV System Installer: this reminder is provided to call the c

20、atV (cable tV) system installers attention to article 820-40 of the nec, which provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as possible. Placing the Stereo

21、 Receiver place the Stereo receiver on a firm and level surface. be certain that the surface and any mounting hardware can support the Stereo receivers weight. provide proper space above, below, behind and to the sides of the Stereo receiver for ventilation. Maintain a clearance of at least 12” (30

22、cm) on each side of, above and behind the unit. If you install the Stereo receiver in a cabinet or other enclosed area, provide cooling air within the cabinet. under some circumstances, a fan may be required. do not obstruct the ventilation slots on the top of the Stereo receiver or place objects di

23、rectly over them. do not place the Stereo receiver directly on a carpeted surface. do not place the Stereo receiver in moist or humid locations, in extremely hot or cold locations, in areas near heaters or heat registers, or in direct sunlight. Harman KardonHK 3770 Service Manual Page 3 of 120 Radio

24、Fans.CN 收音机爱 好者资料库 HK 3700/3700 Receiver Front panel controls 5 HK 3700/3770 HK 3700/3700 Receiver Front Panel Controls the following are the fron panel controls available in the HK 3700/3770 stereo receiver: 1. power indicator 2. power switch 3. play/pause 4. Menu 5. back 6. Select previous 7. OK 8

25、. Select next 9. Message display 10. tuning 11. tuner mode selector 12. Harman Volume 13. bluetooth 14. Source selector 15. Volume control 16. phono input 1. Power indicator: this indicates the status of the stereo receiver whether it is in Operational, OFF, or sleep mode. 2. Power switch: press thi

26、s button to turn the stereo receiver On. when the HK 3700/3770 is in Standby mode (the power Indicator is amber), short press this button to turn the system On (the power Indicator turns white). the receiver goes to Standby mode automatically through the following: 30 minutes of inactivity in Operat

27、ional mode Short press the power button on the front panel Short press the OFF button on the remote control or remote app the receiver can be brought back to Operational mode through the following: Short press on the power button on the front panel Short press on the source button audio signal from

28、bluetooth device (HK 3770 Only) 3. Play/Pause: press this button to play or pause the audio stream. 4. Menu: press his button to choose from different menu options. 5. Back: press this button to go back to the previous menu. 6. Select previous: press this button to select the previous file to play.

29、7. OK : this button is used to make selections within the on-screen menu system for some source devices. 8. Select next: press this button to play the next file. 9. Message Display: Various messages appear in this display in response to commands. In normal use, the upper Line will display the curren

30、t source and audio input (analog or one of the digital audio inputs). the Lower Line displays the current speaker group (if any are active) and the dSp mode. Other messages may appear for some sources, such as the bridge docking station and the tuner. 10. Tuning: use these buttons to navigate the re

31、ceivers menus. when the radio is the active source, use these buttons to tune stations according to the settings of the tuning Mode button. 11. Tuner Mode selector: this button toggles between manual (one frequency step at a time) and automatic (seeks frequencies with acceptable signal strength) tun

32、ing mode. It also toggles between stereo and mono modes when an FM station is tuned in. 12. Harman Volume: this button cycles the Harman Volume function between high, low and off. 13. Bluetooth: the bluetooth button is used to set the stereo receiver into bluetooth mode. you can pair system with blu

33、etooth-enabled devices using this button. 14. Source selector: press these buttons to select the active source. 15. Volume Control: turn this knob clockwise to raise the volume and anticlockwise to lower the volume, which will be shown in decibels (db) in the Message display. 16. Phono input: this h

34、as a built-in preamp. you can only plug a record player into a phono input to connect it to the amplifier. Harman KardonHK 3770 Service Manual Page 4 of 120 HK 3700/3770 HK 3700/3770 Receiver Rear panel connections 6 HK 3700/3770 Receiver Rear Panel Connections Harman KardonHK 3770 Service Manual Pa

35、ge 5 of 120 Remote control Functions 7 HK 3700/3770 the front panel controls of the HK 3700/3770 stereo receiver includes the following: 1. Radio antenna connector 2. network connector 3. digital audio input connector(HK 3770 only) 4. IR and trigger connector 5. ac input connector 6. Signal gnd 7. p

36、hono 8. analog audio input connector 9. Recorder 10. Subwoofer connector 11. Speaker connector 1. Radio Antenna connector: connect the included aM and FM antennas to their respective terminals for radio signal reception. 2. Network Connector: connect to your home network using Rj45 connector. 3. Dig

37、ital audio input connector (HK 3770 only): If your non-HdMI source devices have digital outputs, connect them to the receivers digital audio connectors. NOTE: Make only one type of digital connection (HDMI, optical or coaxial) from each device. 4. IR in and trigger connector: when the IR remote rece

38、iver on the front panel of the HK 3700/3770 receiver is blocked, connect an optional IR receiver to the IR Remote Input jack for use with the remote control. the Remote IR Output may be connected to the IR Remote Input of a compatible source device (or other product) to enable remote control through

39、 the HK 3700/3770. when several source devices are used, connect them in a “daisy chain” fashion. Trigger Connector: connect these outputs to a compatible trigger input on the subwoofer connected to the Subwoofer Output immediately to the right of the trigger Output. consult the owners manual for th

40、e subwoofer to set its trigger input correctly, and the subwoofer will automatically turn On or OFF when the HK 3700/3770 is turned On or OFF. In addition, the trigger Outputs are used with the Subwoofer Link Switches to conserve energy by powering off the subwoofers amplifier when it is not needed.

41、 the Subwoofer trigger Outputs send a signal of 15 volts dc. 5. AC input connector: after you have made all other connections, plug the supplied ac power cord into an unswitched wall outlet. 6. Signal GND: this is used to connect the ground wire of an analog player. this reduces noise when an analog

42、 player is connected. 7. Phono in: connect the outputs of your turntable to these jacks, and connect the ground wire from the turntable to this ground connector to reduce system hum. Only moving magnet (MM-type) cartridges are compatible with the phono Inputs. If your turntable is equipped with its

43、own on board phono preamp, you may connect it to any of the HK 3700/3770s other audio inputs. 8. Analog audio input connector: use the receivers analog audio Input/Output connectors for source devices that dont have HdMI or digital audio connectors. use the Video 2 Out and tape Out connectors to con

44、nect to the audio inputs of a VcR and tape deck. 9. Recorder: two-channel analog audio signals, as well as composite video signals, are normally available at the appropriate recording outputs. thus, to make a recording, you need only make sure to connect your audio or video recorder to the appropria

45、te output jacks. Insert blank media and make sure the recorder is turned on and recording while the source is playing. NOTE: Please make certain that you are aware of any copyright restrictions on any material you record. Unauthorized duplication of copyrighted materials is prohibited by federal law

46、. 10. Subwoofer connector: If you have a powered subwoofer, connect these jacks to the line-level inputs on the subwoofer. 11. Speaker connector: use two-conductor speaker wire to connect each set of terminals to the correct speaker. Observe the correct polarity (positive and negative connections).

47、use the Speaker 1/2 Selectors on the front panel or remote to select either or both pairs of speakers for playback. Remote Control Functions Harman KardonHK 3770 Service Manual Page 6 of 120 HK 3700/3770 Remote control Functions 8 the following remote control functions are available in the remote pr

48、ovided with the HK 3700/3770 remote: 1. power On/Off 2. Mute 3. external device direct remote control (programmable) 4. Stereo (to shift from external devices back to stereo receivers) 5. Source selection 6. Harman Volume 7. Menu access 8. navigation pad 9. tone control 10. exit 11. numeric keys 12.

49、 Volume control 13. Speaker 1/2 selection 14. preset selection 15. Sleep 16. dimmer 17. preset scan 18. auto preset 19. RdS function 20. Memory 21. external device control Power ON and OFF buttons: press these buttons to turn the stereo receiver On and OFF. Mute: press this button to mute or unmute the system. Source selector button: press one of these buttons to select a source device, which is a component where a playback signal originates, e.g., dVd,