Harman Kardon TU 980 (serv.man5) Service Manual ▷ View online
harman/kardon
Service Manual
TU 980/230
FM/AM/Dual-band DAB Tuner with RDS
CONTENTS
FRONT
PANEL
CONTROLS
2
EXPLODED VIEW AND PARTS
13
REAR PANEL CONNECTIONS
3
ELECTRICAL PARTS LIST
14
REMOTE CONTROL FUNCTIONS
4
SEMICONDUCTOR FUNCTION/PINOUTS 21
TROUBLESHOOTING GUIDE
5
PCB
DRAWING
29
TECHNICAL SPECIFICATIONS
6
BLOCK
DIAGRAM
30
PACKAGE LIST AND PARTS
11
WIRING DIAGRAM
31
DISASSEMBLY
12
SCHEMATIC DIAGRAM
32
Released
EU2010
harman/kardon,
Inc.
Rev
0,
09/2010
250 Crossways Park Dr.
Woodbury,
New
York,
11797
harman/kardon
TU 980 Service Manual
Page 1 of 32
Power Indicator: This LED will illuminate 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
turn blue.
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
turn blue.
1 System Power Control: Press this button
to turn on the TU 980; press it again to turn the
unit off (to Standby). Note that the Power Indi-
cator
to turn on the TU 980; press it again to turn the
unit off (to Standby). Note that the Power Indi-
cator
next to the switch will turn blue when
the unit is on.
2 Band Selector: Press this button to change
between the DAB, FM and AM frequency bands.
between the DAB, FM and AM frequency bands.
3 Function/FM Mode Selector: In DAB
mode, pressing this button will activate station
order, preset tune, Dynamic Rate Control or
manual tune features. In FM mode, press this
button to select the stereo or mono mode for
FM tuning. In the stereo mode, the word
mode, pressing this button will activate station
order, preset tune, Dynamic Rate Control or
manual tune features. In FM mode, press this
button to select the stereo or mono mode for
FM tuning. In the stereo mode, the word
STEREO
will be shown in the Information
Display
6, and stereo reception will be
provided when stations 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
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.
4 Info/RDS Button: In DAB mode, pressing
this button will change the content of the lower
display line of the Information Display as shown
on page 9, as well as signal error rate and soft-
ware version. In RDS mode, it will change
between the different RDS options.
this button will change the content of the lower
display line of the Information Display as shown
on page 9, as well as signal error rate and soft-
ware version. In RDS mode, it will change
between the different RDS options.
5 Auto Tune Button: In DAB mode, press this
button to automatically scan all available
stations.
button to automatically scan all available
stations.
6 Information Display: This dual line display
delivers messages and status indications to help
you operate the tuner.
delivers messages and status indications to help
you operate the tuner.
7 Dimmer: Press this button to dim the front
panel display. The first press of the button will
dim the displays to one-half normal brightness;
the next press will turn off the display. Press the
button again to turn the displays back to normal
brightness.
panel display. The first press of the button will
dim the displays to one-half normal brightness;
the next press will turn off the display. Press the
button again to turn the displays back to normal
brightness.
The display will return to normal brightness the
next time the unit is turned on.
8 Memory Button: Press this button to open
the memory position that stores a preset
location in the tuner. 99 DAB presets can be
stored, as well as 30 FM and 30 AM presets.
(See page 9 for more information on tuner
presets.)
the memory position that stores a preset
location in the tuner. 99 DAB presets can be
stored, as well as 30 FM and 30 AM presets.
(See page 9 for more information on tuner
presets.)
9 Control Ring: Turn counterclockwise to
tune lower frequency stations and clockwise to
tune higher frequency stations. When a station
with a strong signal is tuned, the Information
Display
tune lower frequency stations and clockwise to
tune higher frequency stations. When a station
with a strong signal is tuned, the Information
Display
6 will read
TUNED
. Turn again to
tune to the next frequency increment in Manual
Tune Mode, or automatically to the next
station with a signal strong enough for
acceptable reception in Auto Tune Mode.
The ring also controls the parameters in the
different menus.
Tune Mode, or automatically to the next
station with a signal strong enough for
acceptable reception in Auto Tune Mode.
The ring also controls the parameters in the
different menus.
A Select: In FM or AM mode, press this
button to select Auto Tune, Manual Tune or
Preset Tune. In DAB mode, press this button to
select the displayed station.
button to select Auto Tune, Manual Tune or
Preset Tune. In DAB mode, press this button to
select the displayed station.
B 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.
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.
1
3
4
5
6
7
8
2
@
9
A
4 FRONT PANEL CONTROLS
Front Panel Controls
1
2
3
4
5
6
7
8
9
A
B
Power Indicator
System Power Control
Band selector
Function/FM Mode Selector
System Power Control
Band selector
Function/FM Mode Selector
Info/RDS Button
Auto Tune Button
Information Display
Dimmer
Auto Tune Button
Information Display
Dimmer
Memory
Control Ring
Select
Remote Control Sensor
Control Ring
Select
Remote Control Sensor
harman/kardon
TU 980 Service Manual
Page 2 of 32
REAR PANEL CONNECTIONS 5
Rear Panel Connections
7 6
3
8
5
4
2
1
0
Optical and Coaxial Digital Outputs
FM Antenna
AM Antenna
Analog Audio Outputs
DAB Antenna
FM Antenna
AM Antenna
Analog Audio Outputs
DAB Antenna
AC Power Cord
Remote Control Output
Remote Control Input
Remote Control Output
Remote Control Input
Software Update and Reset Button
Optical and Coaxial Digital Outputs:
Connect one of these jacks to the optical or
coaxial digital input of your pre amplifier or
integrated amplifier, if available.
Connect one of these jacks to the optical or
coaxial digital input of your pre amplifier or
integrated amplifier, if available.
Note that these digital outputs only contain the
digital signal from the DAB stations. For FM/AM
reception, you will have to connect the analog
outputs at all times.
digital signal from the DAB stations. For FM/AM
reception, you will have to connect the analog
outputs at all times.
FM Antenna: Connect an indoor or exter-
nal FM antenna to this terminal.
nal FM antenna to this terminal.
AM Antenna: Connect the AM loop
antenna supplied with the receiver to these
terminals. If an external AM antenna is used,
make connections to the AM and GND
terminals in accordance with the instructions
supplied with the antenna.
antenna supplied with the receiver to these
terminals. If an external AM antenna is used,
make connections to the AM and GND
terminals in accordance with the instructions
supplied with the antenna.
Analog Audio Outputs: Connect these
jacks to the tuner input of your pre amplifier or
integrated amplifier for analog audio playback.
Be certain to observe proper channel
connections using the color-coded cables and
connectors so that red connects right channels
and white connects left channels.
jacks to the tuner input of your pre amplifier or
integrated amplifier for analog audio playback.
Be certain to observe proper channel
connections using the color-coded cables and
connectors so that red connects right channels
and white connects left channels.
NOTE: Before making any audio connections,
unplug all components of your audio system
from their AC power outlets. To reduce the
possibility of hum or noise in your system, place
all audio interconnection cables away from both
AC power cords and speaker wires.
unplug all components of your audio system
from their AC power outlets. To reduce the
possibility of hum or noise in your system, place
all audio interconnection cables away from both
AC power cords and speaker wires.
DAB Antenna: Connect a DAB antenna to
this terminal.
this terminal.
AC Power Cord: Connect this plug to an
AC outlet. If the outlet is controlled by a switch,
make certain that it is in the ON position.
AC outlet. If the outlet is controlled by a switch,
make certain that it is in the ON position.
Remote Control Output: Connect this
jack to the infrared (IR) input jack of another
compatible Harman Kardon remote controlled
product to have the built-in Remote Sensor on
the tuner provide IR signals to other compatible
products.
jack to the infrared (IR) input jack of another
compatible Harman Kardon remote controlled
product to have the built-in Remote Sensor on
the tuner provide IR signals to other compatible
products.
Remote Control Input: Connect the
output of a remote infrared sensor, or the
remote control output of another compatible
Harman Kardon product, to this jack. This will
enable the remote control to operate even when
the front panel Remote Sensor on the tuner is
blocked. This jack may also be used with
compatible IR remote control-based automation
systems.
output of a remote infrared sensor, or the
remote control output of another compatible
Harman Kardon product, to this jack. This will
enable the remote control to operate even when
the front panel Remote Sensor on the tuner is
blocked. This jack may also be used with
compatible IR remote control-based automation
systems.
Software Update and Reset Button
(for Service Stations Only): This specialized
connector may be used with your personal com-
puter in case Harman Kardon offers a software
upgrade for the tuner at some time in the
future. The Reset Button is only used during a
software upgrade. A standard processor reset is
performed by pressing and holding the front-
panel Function/FM Mode Button.
(for Service Stations Only): This specialized
connector may be used with your personal com-
puter in case Harman Kardon offers a software
upgrade for the tuner at some time in the
future. The Reset Button is only used during a
software upgrade. A standard processor reset is
performed by pressing and holding the front-
panel Function/FM Mode Button.
ENGLISH
harman/kardon
TU 980 Service Manual
Page 3 of 32
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9
A
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A
6 REMOTE CONTROL FUNCTIONS
Remote Control Functions
0
2
4
6
7
8
9
A
5
3
1
Standby/Power On
Numeric Keys
Clear Button
Info/RDS Button
Auto Tuning Button
Scroll Button
Numeric Keys
Clear Button
Info/RDS Button
Auto Tuning Button
Scroll Button
Function/FM Mode Selector
Band Selector
Select Button
Memory Button
Standby/Power Off
Band Selector
Select Button
Memory Button
Standby/Power Off
0 Standby/Power On: Press this button to
turn on the TU 980. Note that the Power
Indicator
turn on the TU 980. Note that the Power
Indicator
next to the switch will turn blue
when the unit is on.
1 Numeric Keys: These buttons serve as a
ten-button numeric keypad to enter tuner preset
positions or to tune stations directly.
ten-button numeric keypad to enter tuner preset
positions or to tune stations directly.
2 Clear Button: Press this button to clear
presets from your station list.
presets from your station list.
3 Info/RDS Button: Pressing this button will
change the content of the lower display line of
the Information Display as well as signal error
rate and software version. (See page 9 for more
info).
change the content of the lower display line of
the Information Display as well as signal error
rate and software version. (See page 9 for more
info).
4 Auto Tune Button: In DAB mode, press
this button to automatically scan all available
stations.
this button to automatically scan all available
stations.
5 Scroll Buttons: Press
L
to tune lower
frequency stations and
K
to tune higher
frequency stations. When a station with a strong
signal is tuned, the Information Display
signal is tuned, the Information Display
6
will read
TUNED
. Press again briefly to tune to
the next frequency increment in Manual Tune
Mode, or keep pressed for automatic search for
the next station with a signal strong enough for
acceptable reception in Auto Tune Mode. These
buttons also control the parameters in the
different menus, like the Control Ring
Mode, or keep pressed for automatic search for
the next station with a signal strong enough for
acceptable reception in Auto Tune Mode. These
buttons also control the parameters in the
different menus, like the Control Ring
9 on
the front panel.
6 Function/FM Mode Selector: In DAB
mode, pressing this button will activate station
order, preset tune, Dynamic Rate Control or
manual tune features. In FM mode, press this
button to select the stereo or mono mode for FM
tuning. In the stereo mode, the word
mode, pressing this button will activate station
order, preset tune, Dynamic Rate Control or
manual tune features. In FM mode, press this
button to select the stereo or mono mode for FM
tuning. In the stereo mode, the word
STEREO
will be shown in the Information Display
6,
and stereo reception will be provided when
stations 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
stations 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.
7 Band Selector: Press this button to change
between the DAB, FM and AM frequency bands.
between the DAB, FM and AM frequency bands.
8 Select: In FM or AM mode, press this
button to select Auto Tune, Manual Tune or Preset
Tune.
button to select Auto Tune, Manual Tune or Preset
Tune.
9 Memory Button: Press this button to open
the memory position that stores a preset location
in the tuner. 99 DAB presets can be stored, as
well as 30 FM and 30 AM presets. (See page 9
for more information on tuner presets.)
the memory position that stores a preset location
in the tuner. 99 DAB presets can be stored, as
well as 30 FM and 30 AM presets. (See page 9
for more information on tuner presets.)
A Standby/Power Off: Press this button to
turn the unit off (to Standby).
turn the unit off (to Standby).
harman/kardon
TU 980 Service Manual
Page 4 of 32