Harman Kardon HK 3770 (serv.man8) Service Manual ▷ View online
HK 3700/3770
HK 3700/3770 Receiver Rear panel connections
6
HK 3700/3770 Receiver Rear Panel Connections
Harman Kardon
HK 3770 Service Manual
Page 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. phono
8. analog audio input connector
9. Recorder
2. network connector
3. digital audio input connector(HK 3770 only)
4. IR and trigger connector
5. ac input connector
6. Signal gnd
7. phono
8. analog audio input connector
9. Recorder
10. Subwoofer connector
11. Speaker 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. Digital audio input connector (HK 3770 only): If your non-HdMI source devices
have digital outputs, connect them to the receiver’s digital audio connectors.
NOTE: Make only one type of digital connection (HDMI, optical or coaxial)
2. Network Connector: connect to your home network using Rj45 connector.
3. Digital audio input connector (HK 3770 only): If your non-HdMI source devices
have digital outputs, connect them to the receiver’s 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 receiver 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 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 owner’s manual for the 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 subwoofer’s amplifier when it is not needed.
the Subwoofer trigger Outputs send a signal of 15 volts dc.
5. A
4. IR in and trigger connector: when the IR remote receiver 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 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 owner’s manual for the 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 subwoofer’s amplifier when it is not needed.
the Subwoofer trigger Outputs send a signal of 15 volts dc.
5. A
C 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 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 own on board phono preamp, you may connect it to any
of the HK 3700/3770’s other audio inputs.
8. Analog audio input connector: use the receiver’s analog audio Input/Output
connectors for source devices that don’t have HdMI or digital audio connectors. use the
Video 2 Out and tape Out connectors to connect 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 appropriate 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
6. Signal GND: this is used to connect the ground wire of an analog player. this reduces
noise when an analog 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 own on board phono preamp, you may connect it to any
of the HK 3700/3770’s other audio inputs.
8. Analog audio input connector: use the receiver’s analog audio Input/Output
connectors for source devices that don’t have HdMI or digital audio connectors. use the
Video 2 Out and tape Out connectors to connect 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 appropriate 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.
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). use the Speaker 1/2 Selectors on the front panel or remote to select either
or both pairs of speakers for playback.
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). 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 Kardon
HK 3770 Service Manual
Page 6 of 120
HK 3700/3770
Remote control Functions
8
the following remote control functions are available in the remote provided with the
HK 3700/3770 remote:
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
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. 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
11. numeric keys
12. 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, cd or the tuner. this will also
turn On the receiver and switch the remote to the codes that operate the source device.
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, cd or the tuner. this will also
turn On the receiver and switch the remote to the codes that operate the source device.
Harman Volume (HK 3770 Only): this button cycles the Harman Volume function
between high, low and off. Harman volume is an advanced digital signal processing
technology to control playback volume. It evens out the volume level on everything
you watch, improving your listening experience. Once you choose the volume level,
Harman Volume does the rest. It helps you avoid volume increase from commercials,
volume differences when you change channels or switch sources. It helps you listen to
the perfect sound of the dialogs.
Menu: this button helps you navigate through the source’s setup menu.
tone control: press this button to access the bass and treble controls. use the OK button
to select an adjustment and use the up/down buttons to change the settings.
Exit: use this key to go back from the source’s setup menu.
between high, low and off. Harman volume is an advanced digital signal processing
technology to control playback volume. It evens out the volume level on everything
you watch, improving your listening experience. Once you choose the volume level,
Harman Volume does the rest. It helps you avoid volume increase from commercials,
volume differences when you change channels or switch sources. It helps you listen to
the perfect sound of the dialogs.
Menu: this button helps you navigate through the source’s setup menu.
tone control: press this button to access the bass and treble controls. use the OK button
to select an adjustment and use the up/down buttons to change the settings.
Exit: use this key to go back from the source’s setup menu.
OK: this button is used to select items from the menu system.
Left/Right/up/down buttons: these buttons are used to navigate the menu systems.
Numeric keys: use these buttons to enter radio station frequencies when using the
tuner (after pressing the direct button), or to select station presets.
9. Clear: press this button to clear a radio station frequency you have entered.
Direct: press this button before using the numeric keys to enter a radio station
frequency.
Volume Up/Down buttons: press these buttons to increase or decrease the volume
level.
Speaker 1/2: press the Speaker 1 button to enable the HK 3700/3770 Speaker 1 outputs,
and press the Speaker 2 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.
CH/Tuner: use this control to tune a radio station. tap one end of the button briefly to
tune one frequency step at a time, or press and hold it to seek the next frequency with
an acceptably strong signal.
P-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 second time to select the current station. If no
presets have been programmed, the 0 pReSet message will be displayed.
A-Preset: the auto preset feature enables you to automatically set presets for all
available FM radio stations in your area with a single button press. to start the process,
make sure that the FM tuner has been selected as the source. press and hold this button.
the autO pReSet message will appear as the HK 3700/3770 tuner scans through all FM
stations with acceptable signal quality and programs them into the presets. If there are
fewer than 30 stations, the tuner will cycle through again, filling up the higher preset
slots with the same stations. the scan will stop when all 30 presets have been filled, or
after two scans through the FM band.
MEM: after you have tuned a particular radio station, press this button, then the
numeric Keys, to save that station as a radio preset.
RDS: when listening to an FM radio station that broadcasts RdS information, this
button activates the various RdS functions.
Transport Control buttons: these buttons are used to control many source
components. when the remote is operating the receiver by default, these buttons will
control a Harman Kardon blu-ray disc player or dVd player.
Left/Right/up/down buttons: these buttons are used to navigate the menu systems.
Numeric keys: use these buttons to enter radio station frequencies when using the
tuner (after pressing the direct button), or to select station presets.
9. Clear: press this button to clear a radio station frequency you have entered.
Direct: press this button before using the numeric keys to enter a radio station
frequency.
Volume Up/Down buttons: press these buttons to increase or decrease the volume
level.
Speaker 1/2: press the Speaker 1 button to enable the HK 3700/3770 Speaker 1 outputs,
and press the Speaker 2 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.
CH/Tuner: use this control to tune a radio station. tap one end of the button briefly to
tune one frequency step at a time, or press and hold it to seek the next frequency with
an acceptably strong signal.
P-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 second time to select the current station. If no
presets have been programmed, the 0 pReSet message will be displayed.
A-Preset: the auto preset feature enables you to automatically set presets for all
available FM radio stations in your area with a single button press. to start the process,
make sure that the FM tuner has been selected as the source. press and hold this button.
the autO pReSet message will appear as the HK 3700/3770 tuner scans through all FM
stations with acceptable signal quality and programs them into the presets. If there are
fewer than 30 stations, the tuner will cycle through again, filling up the higher preset
slots with the same stations. the scan will stop when all 30 presets have been filled, or
after two scans through the FM band.
MEM: after you have tuned a particular radio station, press this button, then the
numeric Keys, to save that station as a radio preset.
RDS: when listening to an FM radio station that broadcasts RdS information, this
button activates the various RdS functions.
Transport Control buttons: these buttons are used to control many source
components. when the remote is operating the receiver by default, these buttons will
control a Harman Kardon blu-ray disc player or dVd player.
Harman Kardon
HK 3770 Service Manual
Page 7 of 120
HK 3700/3770
troubleshooting
14
Problems
Solutions
unit does not function when main power button is turned On
• Make sure ac power cord is plugged into a live outlet
• check to see whether outlet is switch-controlled
• check to see whether outlet is switch-controlled
no sound from the receiver
• Make certain that all input and speaker connections are secure.
• press Mute button
• turn up Volume control
• press correct Source Selector
• press Speaker 1 or Speaker 2 button
• unplug headphones
• Replace jumper pins or, if external amplifier is in use, make sure it is turned
• press Mute button
• turn up Volume control
• press correct Source Selector
• press Speaker 1 or Speaker 2 button
• unplug headphones
• Replace jumper pins or, if external amplifier is in use, make sure it is turned
On
no sound from any speaker
• check speaker-wire connections for shorts at receiver and speaker ends
• contact your local Harman Kardon service center
• contact your local Harman Kardon service center
unit does not respond to remote commands
• change remote batteries
• Make certain front-panel sensor is visible to remote or connect an optional
• Make certain front-panel sensor is visible to remote or connect an optional
remote sensor
Intermittent buzzing in tuner
• Move unit or antenna away from computers, fluorescent lights, motors or
other electrical appliances
no video image
• connect the source’s composite video output to the correct video input on
the HK 3700/3770
• press the correct Source Selector on the HK 3700/3770
• connect the HK 3700/3770’s Video Monitor Output to a composite video
• connect the HK 3700/3770’s Video Monitor Output to a composite video
input on your television or video display
• consult the manual for your television for instructions on selecting the
correct video input
• It is not possible to view video while listening to the phono, tape/cdR or cd
sources or to the tuner
audio sources sound distorted
• Only plug a device into the phono Inputs if it is a turntable with a moving-
magnet cartridge, or if it is a turntable with a moving-coil cartridge with a
phono preamp
phono preamp
• do not use a turntable with any inputs other than the phono Inputs, unless
it has a moving-magnet-type cartridge and includes a phono preamp
Troubleshooting
If your HK 3700/3770 receiver does not perform the way you think it should, check whether the problem is covered in this section before contacting your dealer or a
Harman/Kardon representative.
Harman/Kardon representative.
Harman Kardon
HK 3770 Service Manual
Page 8 of 120
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