DOWNLOAD Harman Kardon HK 3470 (serv.man10) Service Manual ↓ Size: 313 KB | Pages: 20 in PDF or view online for FREE

Model
HK 3470 (serv.man10)
Pages
20
Size
313 KB
Type
PDF
Document
User Manual / Operation Manual
Brand
Device
Audio
File
hk-3470-sm10.pdf
Date

Harman Kardon HK 3470 (serv.man10) User Manual / Operation Manual ▷ View online

FRONT PANEL CONTROLS
Main Power Switch: Press this button to
apply power to the HK 3470. When the switch is
pressed in, the unit is placed in a Standby mode,
as indicated by the Power Indicator
3 sur-
rounding the System Power Control
2. This
button MUST be pressed in to operate the unit.
To turn the unit off and prevent the use of the
remote control, this switch should be pressed
until it pops out from the front panel so that the
word “OFF” may be read at the top of the
switch.
NOTE: In normal operation this switch is left in
the “ON” position.
System Power Control: When the Main
Power Switch 
1 is “ON,” press this button
to turn on the HK 3470; press it again to turn
the unit off. Note that the Power Indicator
3 surrounding the switch will turn green
when the unit is on.
Power Indicator: This LED will light in
amber when the unit is in the Standby mode to
signal that the unit is ready to be turned on.
When the unit is in operation, the indicator will
briefly turn red, and then change to green. A
red indicator during normal operation means
that the unit is in the Protect mode, and should
be turned off and then checked for a possible
speaker-wire short circuit.
Headphone Jack: This jack may be used to
listen to the HK 3470’s output through a pair of
headphones. Be certain that the headphones
have a standard 1⁄4" stereo phone plug.
Mute: Press this button to momentarily
silence the speaker output of the HK 3470.
Speaker 1 Button: Press this button to
turn the speakers connected to the Speaker 1
output terminals ‡ on or off.
Speaker 2 Button: Press this button to
turn the speakers connected to the Speaker 2
output terminals ° on or off.
Front Panel Controls
21
MEMORY
PRESET
SLEEP
AUTO
VMAx
VMAx
MUTE T-MON
TUNED
ST
7
9 !
#
%
&
(
8
)
@ $
^
*
25
26
27
24
23
22
20
2
1
3
4
5
6
1 Main Power Switch
2 System Power Control
3 Power Indicator
4 Headphone Jack
5 Mute
6 Speaker 1 Selector
7 Speaker 2 Selector
8 Phono Input Selector
9 T-Mon (Tape Monitor) Input Selector
) Tuning Button
! Tape Input Selector
@ Preset Scan
# CD Input Selector
$ Aux Input Selector
% Preset Selector
^ VMAx Selector
& FM/AM Selector
* FM Mode Selector
( Sleep Button
Ó Bass Control
Ô Treble Control
 Balance Control
Ò Volume Control
Ú Volume/Mute Indicator
Û Main Information Display
Ù Speaker Selection Indicators
ı Remote Sensor Window
FRONT PANEL CONTROLS
Front Panel Controls
Phono Input Selector: Press this button
to select the output of a turntable that is con-
nected to the Phono inputs §.
T-Mon (Tape Monitor) Input Selector:
Press this button to listen to the output of a
tape recorder connected to the Tape Monitor
inputs ª. The T-Mon indicator will light to
indicate that the input source is being moni-
tored when the HK 3470 is connected to a
three-head tape deck or another unit with off-
head playback.
Tuning Button: Press the left side of the
button to tune lower-frequency stations and the
right side of the button to tune higher-frequency
stations. When a station with a strong signal is
tuned, the TUNED indicator will light in the
Main Information Display 
Û. A brief (1/2
second) press of the button will manually tune
to the next frequency increment, while pressing
and holding the button for a longer period will
automatically tune to the next station with a
signal strong enough for acceptable reception.
Tape Input Selector: Press this button to
listen to the output of a tape recorder or other
device connected to the Tape 2 inputs ⁄.
Preset Scan: Press this button to auto-
matically scan through the stations that have
been programmed in the HK 3470’s memory.
The tuner will play five seconds of each station
before moving to the next preset station. To
stop the scan when the desired station is
heard, press the button again. (See page 15 for
more information on the tuner memory system.)
CD Input Selector: Press this button to
listen to the output of a CD player connected to
the CD inputs ¶.
Aux Input Selector: Press this button to
listen to the output of a device connected to
the Aux inputs •.
Preset Selector: Press this button to step
up or down through the list of stations that has
been entered into the preset memory. (See
page 15 for more information on tuner pro-
gramming.)
VMAx Selector: Press this button to
engage VMAx processing of a stereo input. The
VMAx Mode Indicator
A will light, and you
will notice a wider, more spacious sound field.
In order to obtain maximum benefit, you should
be seated midway between the two loudspeak-
ers, and the same distance from the speakers as
the speakers are from each other. The speakers
must be placed facing parallel and evenly with
each other so that their baffles are in the same
plane. Press the button again to return to
Stereo mode.
FM/AM Selector: Press this button to
select the tuner as the input to the receiver.
When the tuner is in use, press this button to
change between the AM and FM frequency
bands.
FM Mode Selector: Press this button to
select the Stereo or Mono mode for FM tuning.
In the STEREO mode, a Stereo indicator will
light in the Main Information Display 
Û,
and stereo reception will be provided when sta-
tions are transmitting stereo signals. In the
MONO mode, the left and right signals from
stereo broadcasts will be mixed together and
reproduced through all channels. Select MONO
for better reception of weak signals. VMAx will
have no effect in MONO mode.
Sleep Button: Press this button to place
the unit in the Sleep mode. Each press of the
button selects the amount of time that will
remain before the unit automatically goes 
into the Standby mode, as shown in the Main
Information Display 
Û, in the following
order:
Ó Bass Control: Turn this control to modify
the low-frequency output of the left and right
channels by as much as ±10dB. Set this control
to a suitable position for your taste and room
acoustics.
Ô Treble Control: Turn this control to modify
the high-frequency output of the left and right
channels by as much as ±10dB. Set this control
to a suitable position for your taste and room
acoustics.
 Balance Control: Turn this control to
change the relative volume for the left and
right channels.
Ò Volume Control: Turn the knob clockwise
to increase volume, counterclockwise to
decrease the volume.
Ú Volume/Mute Indicator: This indicator
will glow green when the HK 3470 is turned
on. Its position will enable you to judge the
relative volume of the unit even when the
speakers are muted or turned off. When the
indicator is pointing toward the left, as in an
“8 o’clock” position, the volume is low; when 
it is pointing to the right, as in a “3 o’clock”
position, the volume is loud. When the unit has
been muted by pressing the Mute button 
5,
the indicator will flash.
Û Main Information Display: This display
delivers messages and status indications to
help you operate the receiver.
Ù Speaker Selection Indicators: These
indicators light as a green LED next to the des-
ignation for each speaker pair to show when
they are active. Press the Speaker 1
6 or
Speaker 2 
Selectors to activate either
pair of speakers. Both sets of speakers may be
selected simultaneously as long as all speakers
have a nominal impedance of 8 ohms or
greater. However, occasionally the actual
impedance will vary, depending upon the 
program material. If the impedance drops to a
point where there may be potential damage 
to the equipment, the HK 3470 will go into
protect mode.
ı Remote Sensor Window: The sensor
behind this window receives infrared signals
from the remote control. Aim the remote at this
area and do not block or cover it unless an
external remote sensor is installed.
90
min
80
min
70
min
60
min
50
min
40
min
30
min
20
min
10
min
OFF
FRONT PANEL INFORMATION DISPLAY
Front Panel Information Display
VMAx Mode Indicator: This indicator
lights when the VMAx mode is in use. (See
page 14 for a description of the VMAx Mode.)
Preset Number/Sleep Timer: When the
tuner is in use, these numbers indicate the spe-
cific preset memory location in use. (See page
15 for more information on preset stations.)
When the Sleep function is in use, these num-
bers show how many minutes remain before
the unit goes into the Standby mode.
Preset Indicator: This indicator lights
when the tuner is in use to show that the
Preset Number/Sleep Timer
B is showing
the station’s preset memory number. (See page
15 for more information on tuner presets.)
Sleep Indicator: This indicator lights when
the Sleep function is in use. The numbers in the
Preset Number/Sleep Timer Indicators will show
the minutes remaining before the HK 3470
goes into the Standby mode. (See page 14 for
more information on the Sleep function.)
Memory Indicator: This indicator flashes
when entering presets and other information
into the tuner’s memory.
Stereo Indicator: This indicator lights
when an FM station is being tuned in stereo.
Tuned Indicator: This indicator lights when
a station is being received with sufficient signal
strength to provide acceptable listening quality.
Auto Indicator: This indicator lights when
the tuner’s Auto mode is in use.
Main Information Display: This display
shows messages relating to the status, input
source, tuner or other aspects of the HK 3470’s
operation.
Tape Monitor (T-Mon) Indicator: When
used with three-head cassette decks, or other
recording devices that offer immediate playback
of the recording as it is being made, the
HK 3470 allows you to monitor a recording
rather than merely listening to the input source,
or waiting until the recording session is com-
plete in order to hear the recording. Press the
Tape Monitor Input Selector
9ç, and the 
T-Mon Indicator
J will light to remind you
that you are monitoring the recording. Press the
Tape Monitor Input Selector
9ç again to
hear the input source.
Mute Indicator: This indicator lights to
remind you that the HK 3470’s output has been
silenced by pressing the Mute button 
5 ®.
Press the Mute button again to return to the
previously selected output level.
MEMORY
PRESET
SLEEP
AUTO
VMAx 
MUTE T-MON
TUNED
ST
A
B
D
E
K
F
H
I
J
C
G
A VMAx Mode Indicator
B Preset Number/Sleep Timer
C Preset Indicator
D Sleep Indicator
E Memory Indicator
F Stereo Indicator
G Tuned Indicator
H Auto Indicator
I Main Information Display
J Tape Monitor (T-Mon) Indicator
K Mute Indicator
REAR PANEL CONNECTIONS
Rear Panel Connections
AC 120V 60HZ
400W
(120V, 60Hz)
IN
FM
75 
AM
LOOP
IN
IN
IN
PLAY
REC. OUT
PLAY
REC. OUT
MONO
RIGHT
LEFT
SUB OUT
PRE OUT
MAIN IN
TAPE MON.
TAPE 2
AUX
CD
PHONO
OUT
L
R
GND
S P E A K E R   1   ( 8   O h m s )
S P E A K E R   2   ( 8   O h m s )
¢
¡
¤
ª
§
a
·
°
£
HK3470
¡ AM Antenna
™ FM Antenna
£ Phono Ground
¢ Remote IR In
∞ Remote IR Out
§ Phono Inputs
¶ CD Inputs
• Aux Inputs
ª Tape Monitor Play/In
‚ Tape Monitor Record/Out
⁄ Tape 2 Play/In
¤ Tape 2 Record/Out
‹ Main In
› Pre-Out/Main-In Jumper Pins
fi Preamp Out
fl Subwoofer Out
‡ Speaker 1 Terminals
° Speaker 2 Terminals
· Accessory Outlets
a Power Cable
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