Harman Kardon TU 970II/230 User manual

harman/kardon Service Manual
TU 970II/230
FM/AM/DAB Tuner
CONTENTS
TECHNICAL SPECIFICATIONS 2
TROUBLESHOOTING GUIDE 3
FRONT PANEL CONTROLS 4
REAR PANEL CONNECTIONS 5
REMOTE CONTROL FUNCTIONS 6
EXPLODED VIEW AND PARTS 7
ELECTRICAL PARTS LIST 8
SEMICONDUCTOR FUNCTION/PINOUTS 15
PCB DRAWINGS 18
BLOCK DIAGRAM 19
WIRING DIAGRAM 20
SCHEMATIC DIAGRAM 21
Released EU2008 harman/kardon, Inc. Rev 0, 10/2008
250 Crossways Park Dr.
Woodbury, New York, 11797
harman/kardon
TU 970II/230 Service Manual
Page 1 of 21

Technical Specifications
FM Section
Frequency Range 87.50 MHz to 108.00 MHz (50 kHz steps)
Signal-to-Noise Ratio 65 dB (Mono) 60 dB (Stereo)
Presets 30
AM Section
Frequency Rang 522 kHz to 1620 kHz (9 kHz steps)
Signal-to-Noise Ratio 35 dB
Presets 30
DAB Section
RF Section Band lll, 174 MHz - 240 MHz
Band L, 1452 MHz - 1492 MHz
Input: 50 Ohm, nominal
Max signal: -3 dBm typ
Sensitivity: -96 dBm typ
Adjacent Channel Rejection: 35dB typ
Display 2 line by 16 character DOT Matrix
Presets 99
Audio Output Stereo, 2.5V P-P
48 kHz sample rate 16 bit sample resolution
Optical S/PDIF IEC60958 Compliant
48 kHz sample rate 24 bit sample resolution
General
Power Requirement 230-240 V AC, 50 Hz
Power Consumption 12 W
3 W (standby)
Dimension (Max)
Width 442 mm
Height 63 mm
Depth 299 mm
Weight 3.4 kg
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 and Power for the Digital Revolution are registered trademarks of Harman Kardon, Incorporated
ENGLISH
29168_TU970II_ENG 03/07/06 11:03 Side 13
harman/kardon
TU 970II/230 Service Manual
Page 2 of 21

12 TROUBLESHOOTING GUIDE
Troubleshooting Guide
This unit is designed for trouble-free operation. Most problems users encounter are due to operating errors. If you have a problem, first check this list for a
possible solution. If the problem persists, consult your authorized Harman Kardon Service Center.
If the problem is... Make sure that the...
No lights appear when System Power button is pressed Unit is plugged into a live outlet.
Make sure the outlet is active.
No sound is heard Tune to an active station.
Check for correct amplifier settings.
Check the connections and wires.
Sound distorts, particularly in stereo mode. Use a more directional antenna.
Intermittent or continuous buzzing or hissing. Place the unit farther away from these appliances. Install noise filters on the appliances.
Display says 'No stations Available' Check that antenna is connected.
Ensure that DAB coverage exists in your area.
Display has gone blank or says 'service off air' This may occur if a broadcaster changes the label of a service or removes a label whilst you
are listening to it. Try to retune to this station, using the Autotune procedure.
29168_TU970II_ENG 03/07/06 11:03 Side 12
harman/kardon
TU 970II/230 Service Manual
Page 3 of 21

 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.
1 System Power Control: Press this button
to turn on the TU 970 II; press it again to turn
the unit off (to Standby). Note that the Power
Indicator
 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.
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
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
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.
5 Auto Tune Button: In DAB mode, press this
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.
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 back to normal bright-
ness. 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.)
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
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.
ASelect: 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.
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.
1345678
2
@9A
4FRONT 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
Info/RDS Button
Auto Tune Button
Information Display
Dimmer
Memory
Control Ring
Select
Remote Control Sensor
29168_TU970II_ENG 03/07/06 11:03 Side 4
harman/kardon
TU 970II/230 Service Manual
Page 4 of 21

REAR PANEL CONNECTIONS 5
Rear Panel Connections
76
35
4
2
1
0








Optical and Coaxial Digital Outputs
FM Antenna
AM Antenna
Analog Audio Outputs
DAB Antenna
AC Power Cord
Remote Control Output
Remote Control Input
 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.
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.
 FM Antenna: Connect an indoor or exter-
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.
 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.
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.
 DAB Antenna: Connect a DAB antenna to
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.
 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.
 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.
29168_TU970II_ENG 03/07/06 11:03 Side 5
harman/kardon
TU 970II/230 Service Manual
Page 5 of 21

0
1
2
3
4
5
6
7
8
9
A
6REMOTE CONTROL FUNCTIONS
Remote Control Functions
0
2
46
7
8
9
A
5
3
1
Standby/Power On
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
0 Standby/Power On: Press this button to
turn on the TU 970 II. 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.
2 Clear Button: Press this button to clear
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).
4 Auto Tune Button: In DAB mode, press
this button to automatically scan all available
stations.
5 Scroll Buttons: Press Lto tune lower
frequency stations and Kto tune higher
frequency stations. When a station with a strong
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
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
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
MONO
for better reception of weak signals.
7 Band Selector: Press this button to change
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.
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.)
A Standby/Power Off: Press this button to
turn the unit off (to Standby).
29168_TU970II_ENG 03/07/06 11:03 Side 6
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TU 970II/230 Service Manual
Page 6 of 21

EXPLODED VIEW (TU 970II)
10
1
2
3
4
5
6
7
8
9
12
14
15
11
13
17
18
21
19
24
25
26
28
23
22
30
27
31
32
33
20
29
S1
X2
S1 X5
S1 X6
S1 X4
S2 X2
S2
S2 X3
X5
S6
X4
S6 S3 X4
S3 X4
S4 X5
S5
S7 X4
X4
X4
X4
S8
16
34
35
ORNAMENT, BAR(B)
INDICATOR, ROTARY
ORNAMENT, BAR(D)
DESCRIPTION
BADGE
ORNAMENT, BAR(A)
ORNAMENT, BAR(C)
PANEL, FRONT
INDICATOR, POWER
PCB(LED)
11
10
8
7
9
5
6
1
2
NO.
3
4
CGL1A229
KGX1A344MBC22
PARTS NO.
CGU1A324Z
CAP, ROTARY
WINDOW, FIP
KGB1A111X
KGR1A327MBC22
CGW1A374RDH43
CGL1A227
KGR1A326MBC22
KGR1A325MBC22
Q'TY
1
1
1
1
1
1
1
1
1
1
1
KNOB, POWER
PCB(FRONT)
12
13 KBT1A918MBC22
1
1
CHD1A023
PARTS NO.
CTB3+10G
CTB3+10GFZ
S1
NO.
S2
S3
CTB3+6JFZ
CTW3+8J
S5
S4
S6
S7
CTB3+6J
DESCRIPTION
SCREW
SCREW
SCREW
Q'TY
17
6
8
SCREW
SCREW
SCREW
SCREW, TRANS
1
5
9
4
1
23
SUPPORT, PCB
CABINET, TOP
PCB(MICOM)
PCB(FRONT)
PCB(ROTARY)
BRACKET, FIP
KNOB, MEMORY
FIP MODULE
KBT1A919MBC22
KBT1A920MBC22
14
15 KNOB, SELECT
CMH1A226
CKC1B151S46
16
17
18
19
21
20
22
1
1
2
1
3
1
1
1
1
TUNER MODULE
PCB(MAIN)
24
25
1
1
KGR1A328MBC22
CMD1A501
KHG1A050
CKF1A275Z
26
27
CUA1A240
31
30
29
28
CKL1A186H43
CHASSIS, BOTTOM
PCB(JACK)
1
1
FOOT
CUSHION, FOOT
PCB(TRANS)
PANEL, REAR 1
4
4
132
33
POWER CORD
BUSHING, AC CORD 1
1
KHR1A028
CTB3+8JFC
SCREW
S8 CTS3+8JFC 4
DAB MODULEHNVFS2020VENICE
HFL16T202DA1E
COP11666B
CJA2B043ZA
CNVMB114MA18L
35
34
CMZ1A095 SHEET, ROTARY 1
CMZ1A093 FILTER, FIP 1
harman/kardon
TU 970II/230 Service Manual
Page 7 of 21

POS PART NUMBER PART NAME COMMENTS
CHE154 CLAMPER , ARM
CQXTU970II/230 INSTRUCTION MANUAL ASS'Y
CARTTU970II REMOCON , TRANSMITER ASS'Y
CJS4M009X CORD, PIN CORD, PIN
CJS4N014Z CORD , PIN
CJS9D002Z CORD , JACK(MONO) 1200MM
CQX1A1145Z MANUAL, INSTRUCTION
CGL1A229 INDICATOR, ROTARY
CGWTU970II/230 FRONT PANEL ASS'Y
CBT1A918MBG27 KNOB, POWER
CBT1A919MBG27 KNOB, MEMORY
CBT1A920MBG27 KNOB, SELECT
CGL1A227 INDICATOR, POWER
CGU1A324X WINDOW, FIP
CGU1A324X-1 WINDOW, FIP
CGW1A374RDH43 PANEL, FRONT TU970
CMZ1A093 FILTER, FIP PVC 0.4T
CMZ1A095 SHEET, ROTARY
CTB3+10GR SCREW
CTW3+10GR SCREW
CWC1C4A23B160B CABLE , CARD
HFL16T202DA1E VFD , MODULE 16T202DA1E
FIP1 KJP14TT152ZY PIN HEADER (2.54MM)
CGX1A344MBG27 CAP, ROTARY
CHG1A113 RUBBER
CHR301 CLAMPER
BKC1C151S46 SHEET , CABINET(296X560) ALKOR 40211
CUATU970II/230 BOTTOM CHASSIS ASS'Y
CHD1A023R SCREW , SPECIAL
CMH1A226 SUPPORT , PCB
CNE1A009 NUT, DAB M3/8X32
CNVFS2022V131C MODULE , DUAL DAB FS2022-0101-0005
CNVMB114MA18L TUNER MODULE(EUR)
CNW1A038 WASHER 9.5X15
COP11923B PCB , ASS'Y
CIP11923B PCB , AUTO ASS'Y
CUP11923Z PCB , MAIN
C101 CCEA1CH471T CAP , ELECT 470UF 16V
C104 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C201 CCEA1AH471T CAP , ELECT 470UF 10V
C202 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C203 CCEA1AH471T CAP , ELECT 470UF 10V
C204 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C205 CCEA1HH4R7T CAP , ELECT 4.7UF 50V
C206 CCCT1H220JC CAP , CERAMIC 22UF 50V
C207 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C208 CCEA1AH101T CAP , ELECT 100UF 10V
C209 CCEA1HH4R7T CAP , ELECT 4.7UF 50V
C210 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C211 CCEA1AH101T CAP , ELECT 100UF 10V
C212 CCEA1HH4R7T CAP , ELECT 4.7UF 50V
C213 CCCT1H220JC CAP , CERAMIC 22UF 50V
TU 970II/230 FM/AM/DAB TUNER
harman/kardon
TU 970II/230 Service Manual
Page 8 of 21

POS PART NUMBER PART NAME COMMENTS
C214 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C215 CCEA1AH101T CAP , ELECT 100UF 10V
C216 CCEA1HH4R7T CAP , ELECT 4.7UF 50V
C217 CCEA1AH101T CAP , ELECT 100UF 10V
C218 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C219 CCEA1HH4R7T CAP , ELECT 4.7UF 50V
C220 CCEA1HH4R7T CAP , ELECT 4.7UF 50V
C221 HCQI1H152JZT CAP , MYLAR 1500UF 50V
C222 HCQI1H152JZT CAP , MYLAR 1500UF 50V
C223 CCEA1HH4R7T CAP , ELECT 4.7UF 50V
C224 CCEA1HH4R7T CAP , ELECT 4.7UF 50V
C225 CCFT1H103ZF CAP, CERAMIC 10000UF 50V
C226 CCKT1H102KB CAP , CERAMIC 1000UF 50V
C228 CCEA1HH4R7T CAP , ELECT 4.7UF 50V
C229 CCEA1AH101T CAP , ELECT 100UF 10V
C230 CCEA1CH470T CAP , ELECT 47UF 16V
C231 CCFT1H104ZF CAP , SEMICONDUCTOR 100nF 50V
C234 CCCT1H330JC CAP , CERAMIC 33UF 50V
C235 CCEA1AH101T CAP , ELECT 100UF 10V
C701 CCEA1AH471T CAP , ELECT 470UF 10V
C702 CCCT1H330JC CAP , CERAMIC 33UF 50V
C703 CCCT1H330JC CAP , CERAMIC 33UF 50V
C704 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C705 CCKT1H221KB CAP , CERAMIC 220UF 50V
C706 CCKT1H221KB CAP , CERAMIC 220UF 50V
C707 CCEA1AH101T CAP , ELECT 100UF 10V
C708 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C709 CCKT1H221KB CAP , CERAMIC 220UF 50V
C710 CCKT1H221KB CAP , CERAMIC 220UF 50V
C711 CCKT1H221KB CAP , CERAMIC 220UF 50V
C714 CCEA1AH101T CAP , ELECT 100UF 10V
C715 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C716 CCEA1AH471T CAP , ELECT 470UF 10V
C717 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C718 CCKT1H101KB CAP , CERAMIC 100UF 50V
C719 CCKT1H101KB CAP , CERAMIC 100UF 50V
C720 CCKT1H101KB CAP , CERAMIC 100UF 50V
C721 CCKT1H101KB CAP , CERAMIC 100UF 50V
C722 CCKT1H101KB CAP , CERAMIC 100UF 50V
C723 CCKT1H101KB CAP , CERAMIC 100UF 50V
C724 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C726 CCEA1CH470T CAP , ELECT 47UF 16V
C727 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C901 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C902 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C903 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C904 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C905 CCEA1HH220T CAP , ELECT 22UF 50V
C906 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C908 CCEA1AH101T CAP , ELECT 100UF 10V
C909 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C910 CCEA1CH101T CAP , ELECT 100UF 16V
C911 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
harman/kardon
TU 970II/230 Service Manual
Page 9 of 21

POS PART NUMBER PART NAME COMMENTS
C914 CCEA1AH101T CAP , ELECT 100UF 10V
C915 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C916 CCEA1AH101T CAP , ELECT 100UF 10V
C917 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C918 CCEA1AH101T CAP , ELECT 100UF 10V
C919 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C920 CCEA1AH101T CAP , ELECT 100UF 10V
C921 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C922 CCEA1AH101T CAP , ELECT 100UF 10V
C923 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C924 CCEA1CH471T CAP , ELECT 470UF 16V
C925 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C926 CCEA1AH101T CAP , ELECT 100UF 10V
C927 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
C928 CCEA1AH470T CAP , ELECT 47UF 10V
C929 CCFT1H223ZF CAP, CERAMIC 22000UF 50V
D201 CVDZJ3.3BT DIODE , ZENER ZJ3.3B 1/2W
D202 CVD1SS133MT DIODE 1SS133
D702 CVD1SS133MT DIODE 1SS133
D703 CVD1SS133MT DIODE 1SS133
D706 CVD1SS133MT DIODE 1SS133
D707 CVD1SS133MT DIODE 1SS133
D708 CVD1SS133MT DIODE 1SS133
D719 CVD1SS133MT DIODE 1SS133
D720 CVD1SS133MT DIODE 1SS133
D901 CVD1N4003ST RECT , DIODE 1N4003
D902 CVD1N4003ST RECT , DIODE 1N4003
D903 CVD1N4003ST RECT , DIODE 1N4003
D904 CVD1N4003ST RECT , DIODE 1N4003
D905 CVD1N4003ST RECT , DIODE 1N4003
D906 CVD1SS133MT DIODE 1SS133
D907 CVDZJ4.7BT DIODE , ZENER ZJ4.7B 1/2W
D908 CVD1N4003ST RECT , DIODE 1N4003
D909 CVD1N4003ST RECT , DIODE 1N4003
D910 CVDZJ6.2BT DIODE , ZENER ZJ6.2B 1/2W
D911 CVDZJ6.2BT DIODE , ZENER ZJ6.2B 1/2W
D912 CVD1N4003ST RECT , DIODE 1N4003
D913 CVD1SS133MT DIODE 1SS133
F901 KJCFC5S HOLDER , FUSE
IC72 HVIRE5VL28CATZ IC , RESET
Q201 HVTKTC2874BT T.R , MUTE KTC2874B
Q202 HVTKTC2874BT T.R , MUTE KTC2874B
Q203 HVTKRA107MT T.R KRA107M
Q204 HVTKRC107MT T.R KRC107M
Q205 HVTKRA107MT T.R KRA107M
Q701 HVTKRA107MT T.R KRA107M
Q702 HVTKRA107MT T.R KRA107M
Q703 HVTKRA107MT T.R KRA107M
Q704 HVTKRA107MT T.R KRA107M
Q705 HVTKRA107MT T.R KRA107M
Q709 HVTKRC102MT T.R KRC102M
Q710 HVTKRC107MT T.R KRC107M
Q711 HVTKRC102MT T.R KRC102M
harman/kardon
TU 970II/230 Service Manual
Page 10 of 21