In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
Page 2
TU-X1U
TUX1U
SAFETY PRECAUTION
Service Manual
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
WARNING
1. For continued safety, no modification of any circuit should be
attempted.
2. Disconnect AC power before servicing.
CAUTION: FO R CO NT I NU ED PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE .
˴F701 (AC250V T2.5A)
˴F702 (AC250V T2.5A)
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resistor.
• Connect the resistor connection to all exposed metal parts having a
return to the chassis (antenna, metal cabinet, screw heads, knobs
and control shafts, escutcheon, etc.) and measure the AC voltage
drop across the resistor.
All checks must be repeated with the AC cord plug connection
reversed. (If necessary, a nonpolarized adaptor plug must be used
only for the purpose of completing these checks.)
Any reading of 0.75 Vrms (this corresponds to 0.5 mA rms AC.) or
more is excessive and indicates a potential shock hazard which
must be corrected before returning the monitor to the owner.
DVM
BEFORE RETURNING THE RECEIVER (Fire &
Shock Hazard)
Before returning the receiver to the user, perform the following
safety checks:
3. Inspect all lead dress to make certain that leads are not pinched,
and check that hardware is not lodged between the chassis and
other metal parts in the receiver.
4. Inspect all protective devices such as non-metallic control knobs,
insulation materials, cabinet backs, adjustment and compartment
covers or shields, isolation resistor-capacitor networks, mechanical
insulators, etc.
5. To be sure that no shock hazard exists, check for leakage current in
the following manner.
• Plug the AC cord directly into a 120 volt AC outlet.
• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.
Many electrical and mechanical parts in LCD color television have
special safety-related characteristics.
These characteristics are often not evident from visual inspection, nor
can protection afforded by them be necessarily increased by using
replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are
identified in this manual; electrical components having such features
are identified by "" and shaded areas in the Replacement Parts List
and Schematic Diagrams.
For continued protection, replacement parts must be identical to those
used in the original circuit.
The use of a substitute replacement parts which do not have the same
safety characteristics as the factory recommended replacement parts
shown in this service manual, may create shock, fire or other hazards.
i
Page 3
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux
conseils suivants.
•
AVERTISSEMENT
1.
N'entreprendre aucune modification de tout circuit. C'est dangereux.
2.
Débrancher le récepteur avant toute réparation.
PRECAUTION: POUR LA PROTECTION CONTINUE CONTRE LES RISQUES D'INCENDIE,
REMPLACER LE FUSIBLE
˴F701 (AC250V T2.5A)
˴F702 (AC250V T2.5A)
VERIFICATIONS CONTRE L'INCEN-DIE ET LE
CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer les vérifications suivantes.
3.
Inspecter tous les faisceaux de câbles pour s'assurer que les fils
ne soient pas pincés ou qu'un outil ne soit pas placé entre le châssis et les autres pièces métalliques du récepteur.
4.
Inspecter tous les dispositifs de protection comme les boutons de
commande non-métalliques, les isolants, le dos du coffret, les couvercles ou blindages de réglage et de compartiment, les réseaux
de résistancecapacité, les isolateurs mécaniques, etc.
5.
S'assurer qu'il n'y ait pas de danger d'électrocution en vérifiant la
fuite de courant, de la facon suivante:
•
Brancher le cordon d'alimentation directem-ent à une prise de courant de 120V. (Ne pas utiliser de transformateur d'isolation pour
cet essai).
A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ
10 watts en parallèle avec un condensateur de 0.15µF en série
avec toutes les pièces métalliques exposées du coffret et une terre
connue comme une conduite électrique ou une prise de terre
branchée à la terre.
•
Utiliser un voltmètre CA d'une sensibilité d'au moins 5000Ω/V pour
mesurer la chute de tension en travers de la résistance.
•
Toucher avec la sonde d'essai les pièces métalliques exposées qui
présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de commande et des boutons, écusson,
etc.) et mesurer la chute de tension CA en-travers de la résistance.
Toutes les vérifications doivent être refaites après avoir inversé la
fiche du cordon d'alimentation. (Si nécessaire, une prise
d'adpatation non polarisée peut être utilisée dans le but de terminer ces vérifications.)
La tension de pointe mesurèe ne doit pas dépasser 0.75V (correspondante au courant CA de pointe de 0.5mA).
Dans le cas contraire, il y a une possibilité de choc électrique qui
doit être supprimée avant de rendre le récepteur au client.
De nombreuses pièces, électriques et mécaniques, dans les téléviseur ACL présentent des caractéristiques spéciales relatives à la sécurité, qui ne sont souvent pas évidentes à vue. Le degré de protection ne peut pas être nécessairement augmentée en utilisant des
pièces de remplacement étalonnées pour haute tension, puissance,
etc.
Les pièces de remplacement qui présentent ces caractéristiques sont
identifiées dans ce manuel; les pièces électriques qui présentent ces
particularités sont identifiées par la marque "" et hachurées dans la
liste des pièces de remplacement et les diagrammes schématiques.
Pour assurer la protection, ces pièces doivent être identiques à celles
utilisées dans le circuit d'origine. L'utilisation de pièces qui n'ont pas
les mêmes caractéristiques que les pièces recommandées par l'usine,
indiquées dans ce manuel, peut provoquer des électrocutions, incendies, radiations X ou autres accidents.
ii
Page 4
TU-X1U
PRECAUTIONS FOR USING LEAD-FREE SOLDER
Employing lead-free solder
• “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The
alphabetical character following LF shows the type of lead-free solder.
Example:
Indicates lead-free solder of tin, silver and copper.Indicates lead-free solder of tin, silver and copper.
Using lead-free wire solder
• When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 °C, we recommend you to use a dedicated soldering
bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.
Soldering
• As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 °C which is higher than the conventional lead solder by 40 °C, and as it has poor
solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be
peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the
steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as
required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
• Be careful when replacing parts with polarity indication on the PWB silk.
OSD languageEnglish/French/Spanish
Power RequirementAC 120 V, 60 Hz
Power Consumption
Weight
Dimension
(W x H x D)
Operating temperature
*1
Emergency alert messages via Cable are unreceivable.
*2
The dimensional drawings are shown on the inside back cover.
*3
The depth does not include the protruding part of terminals.
As part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product
improvement without prior notice. The performance specification figures indicated are nominal values of production units.
There may be some deviations from these values in individual units.
TV-standard (CCIR)American TV Standard ATSC/NTSC System
Receiving Channel
Audio multiplexBTSC System
AVC
System
*2
VHF/UHFVHF 2-13ch, UHF 14-69ch
CATV1-135ch (non-scrambled channel only)
Digital Terrestrial
Broadcast (8VSB)
Digital cable
(64/256 QAM)
INPUT 3AV in, COMPONENT in
INPUT 4HDMI in with HDCP
Front
SERVICESoftware update
INPUT 1AV in, COMPONENT in
INPUT 2AV in, S-VIDEO in
INPUT 5Audio in, HDMI in with HDCP
INPUT 6HDMI in with HDCP
INPUT 7HDMI in with HDCP
INPUT 8HDMI in with HDCP
INPUT 9ANALOG RGB (PC) in (15-pin mini D-sub female connector), Audio in (Ø 3.5 mm jack)
ANT/CABLE
Rear
DC OUTPUTDC 5V 1.8A MAX (For a Sharp device)
DIGITAL
AUDIO
OUTPUT
DISPLAY
OUTPUT
ETHERNETNetwork connector
OUTPUTAudio out
RS-232C9-pin D-sub male connector
AVC System38 W (0.4 W Standby with AC 120 V)
AVC System8.4 lbs./3.8 kg
AVC System
*3
2-69ch
*1
1-135ch (non-scrambled channel only)
75 Ω Unbalance, F Type x 1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)
Optical Digital audio output x 1 (PCM/Dolby Digital)
AV out
1615/16x213/16x1217/32inch
+32°F to +104°F (0°C to +40°C)
TU-X1U
Service Manual
Optional Accessory
The listed optional accessory is available for the Liquid
Crystal Television. Please purchase it at your nearest shop.
Additional optional accessories may be available in the near
future. When purchasing, please read the newest catalogue for
compatibility and check the availability.
1 – 1
Part nameModel number
Wall mount bracket
Stand Unit
AN-52AG8 (for LC-52XS1U)
AN-65AG2 (for LC-65XS1U)
AN-52ST1 (for LC-52XS1U)
AN-65ST1 (for LC-65XS1U)
Page 6
TU-X1U
[2] OPERATION MANUAL
AVC System (Front/Rear/Bottom)
*1
INPUT 9 terminals
(PC-IN)
AUDIO OUTPUT
terminals
ETHERNET
terminal
INPUT 5
terminals
(HDMI)
INPUT 4 terminal
(HDMI)
INPUT 6
INPUT 7
terminal
terminal
(HDMI)
(HDMI)
RS-232C
terminal
INPUT 8
terminal
(HDMI)
INPUT 3 terminalsSERVICE
DC OUTPUT
terminal
DISPLAY
OUTPUT
terminal
(HDMI)
AC INPUT
terminal
terminal
Reset button
Antenna/Cable in
INPUT 1 terminals
DIGITAL AUDIO
OUTPUT terminal
INPUT 2 terminals
*2
*
*1
*1
* Press the reset button if the system cannot return to its original state after performing various operations.
AV MODE resets to DYNAMIC (Fixed)
TV channel returns to initial channel setting
Audiosetting initializes
Imageposition initializes
Reset will not work if the TV is in standby mode
Reset will not delete channel preset or secret number
*1 External equipment connection.
*2 Connecting the AC cord.
9 FRZ (FREEZE): Set the still image. Press again to return to
normal screen.
10 DISPLAY: Display the channel information.
11 CC: Display captions from a closed-caption source.
12 AUDIO: Selects the MTS/SAP or the audio mode during multi-
channel audio broadcasts.
13 SOURCE POWER: Turns the power of the external equipment
on and off.
14 OPTION: Display the AQUOS LINK MENU screen. This button
will function only when AQUOS LINK is used.
15 REC STOP: Stops one touch recording. This button will function
only when AQUOS LINK is used.
16 LIGHT : When this button is pressed, some buttons (for
example, VOL / and CH / ) on the remote control unit will
light. The lighting will turn off if no operations are performed within
about 5 seconds. This button is used for performing operations in
low-light situations.
17 FUNCTION: Switches the remote control for TV, CBL/SAT, VCR,
DVD and AUDIO operation.
* To enter the code registration mode, you need to press
FUNCTION and DISPLAY at the same time.
18 LCD window: This screen shows which device you are currently
controlling (TV, CBL/SAT, VCR, DVD/BD or AUDIO).
19 ENT: Jumps to a channel after selecting with the 0–9 buttons.
20 BACK: Return to the previous channel or external input mode.
21 SRND (SURROUND): Select Surround settings.
22 CH / : Select the channel.
23 FAVORITE CHANNEL
A, B, C, D: Select 4 preset favorite channels in 4 different
categories.
While watching, you can toggle the selected channels by pressing
A, B, C and D.
24 NET: Switches the display to the Sidebar Widget, TV Web, Web
or TV screen.
25
///,ENTER: Select a desired item on the screen.
26 RTN (RETURN): Return to the previous menu screen.
27 MENU: Display the menu screen.
28 SLP (SLEEP):
29 FAV (FAVORITE): Set the favorite channels.
30 VIEW MODE: Select the screen size.
31 AV MODE: Select an audio or video setting.
(When the input source is TV, INPUT 1, 2 or 3: STANDARD,
MOVIE, GAME, USER, DYNAMIC (Fixed), DYNAMIC. When the
input source is INPUT 4, 5, 6, 7, 8 or 9: STANDARD, MOVIE,
GAME, PC, x.v.Color (INPUT4/5/6/7/8 only), USER, DYNAMIC
(Fixed), DYNAMIC)
32 External equipment operational buttons: Operate the external
equipment.
Set the sleep timer.
When using the remote control unit, point it at the Monitor.
1 – 3
Page 8
TU-X1U
[3] DIMENSIONS
71.0
Unit: mm
430.0
318.3
328.9
1 – 4
Page 9
TUX1U
CHAPTER 2. REMOVING OF MAJOR PARTS
Service Manual
[1] REMOVING OF MAJOR PARTS
1. Remove the two lock screws from Top Cabinet.
2. Remove the three lock screws from Top Cabinet, and detach the Top Cabinet.
Top Cabinet
1
TU-X1U
2
1
3. Remove the three lock screws from Front Panel, and detach the Front Panel.
4. Remove the one lock screw, and detach the KEY Unit from the Front Panel.
KEY Unit
4
3
Front Panel
2 – 1
Page 10
TU-X1U
5. Remove the DC Output PWB from Rear Panel.
6. Remove the lock screws, two hexagon shaft screws, AC Inlet and one tuner nut from the Rear Panel, and detach the Rear Panel.
7. Remove the two lock screws, from the Rear Panel, and detach the Fan and Fan Angle.
8. Remove the one lock screw, and detach the Sub Terminal unit.
SUB TERMINAL Unit
8
DC OUT Unit
Fan
Fan Angle
5
AC Inlet
7
6
Back Plate
9. Remove the three lock screws from the Terminal PWB, and detach the Terminal Unit.
9
TERMINAL Unit
2 – 2
Page 11
10.Remove the lock screws from Main Unit, and detach the Main Unit.
MAIN Unit
10
TU-X1U
10
11.Remove the four lock screws from the Power Unit, and detach the Power Unit.
POWER Unit
11
2 – 3
Page 12
TU-X1U
TUX1U
CHAPTER 3. ADJUSTMENT
Service Manual
[1] ADJUSTMENT PROCEDURE
The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is
required due to part replacement, make an adjustment according to the following procedure.
1. After replacement of any PWB unit and/or IC for repair, please note the following.
• When replacing the following units, make sure to prepare the new units loaded with updated software.
MAIN Unit: DUNTKE760FE01
2. Upgrading of each microprocessor software
CAUTION: Never “POWER OFF” the unit when software upgrade is ongoing.
Otherwise the system may be damaged beyond recovery.
2.1. Software version upgrade
The model employs the following software.
•Main software
• Monitor microprocessor software.
The main software, monitor microprocessor software, and FRC controller software can be upgraded by using a general-purpose USB Memory.
The followings are the procedures for upgrading, explained separately for the main software, monitor microprocessor software, and FRC controller
software.
2.2. Main software version upgrade
2.2.1 Get ready before you start
• USB Memory of 128MB or higher capacity.
• PC running on Windows 98/98SE/ME/2000/XP operating system.
• USB Memory reader/writer or PC with a USB port.
• The file system of a USB memory is FAT. (FAT32 is not applied)
• Use the USB memory without other functions. (lock and memory reader...etc)
2.2.2 Preparations
To upgrade the main software, it is necessary to get ready the USB Memory for version upgrade before you start.
Follow the steps below and create the USB Memory for version upgrade.
1. Copy the file XS1UAxxx.USB (named temporarily) for version upgrade to the root directory (folder) of the USB Memory.
NOTE: In the USB Memory drive, do not store other folders or unrelated files, or more than one file for version upgrade.
Now the USB Memory for version upgrade is ready.
2.2.3 How to upgrade the software
1. Unplug the AC cord.
2. Insert the USB Memory for version upgrade (prepared as above) into the SERVICE socket (Front panel of the AVC System).
3. Plug in the AC cord with power button pressed down after 5 seconds, unpress the power button.
4. After the unit startup, the system upgrade screen as shown below appears within 20-40 seconds.
3 – 1
Page 13
TU-X1U
5. Even a single failure in the process will trigger the upgrade failure screen.
NOTE: In the event of a failure, repeat the upgrade process. If the process repeatedly fails, it is likely that the hardware need fixing.
6. Upon completion of the whole process, the upgrade success screen as shown below appears. You can check the new software version on this
screen. The version information appears after the upgrade is complete.
7. Unplug the AC cord and remove the USB Memory for version upgrade.
8. Now the software version upgrade is complete.
NOTE: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the main
software version information.
3 – 2
Page 14
TU-X1U
2.3. Monitor microprocessor software version upgrade
Create the USB memory for monitor microprocessor software version upgrade in the same manner as explained in the “Main software version
upgrade”.
Copy the file XS1UVAxx.USB and XS1CSxxx.BIN (named temporarily) for monitor microprocessor software version upgrade to the USB memory.
2.3.1 How to upgrade the software
1. Unplug the AC cord.
2. Insert the USB memory for version upgrade (prepared as above) into the SERVICE socket (Front panel of the AVC System).
3. Plug in the AC cord with power button pressed down.
4. After 5 seconds, unpress the power button.
CAUTION: • The moment this operation is done, the upgrading of the monitor microprocessor software starts. While the upgrade is ongoing, never
5. After the unit startup, the upgrade starts. The power led will blink continuously. Also, an upgrade screen will be shown during a minor upgrade.
power off the unit. Otherwise the upgrade will fail and the system may be serious damaged beyond recovery (inability to start).
• After the monitor microprocessor software is upgraded, also perform the 'Industry Init'.
6. If the upgrade fails, power led will stop blinking. Also, the upgrade failure screen will be shown if upgrade screen was shown at 5.
NOTE: In the event of a transient failure, upgrade will be automatically retried up to three times. If the process repeatedly fails, hardware may be the
cause.
7. Up on completion of the whole process, power and OPC LED will blink alternately. Also, the upgrade success screen will be shown if upgrade
screen was shown at 5.
8. Unplug the AC cord and remove the USB Memory for version upgrade.
9. Now the software version upgrade is complete.
NOTE: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the mon-
itor microprocessor software version information and panel size information.
3 – 3
Page 15
TU-X1U
3. Entering and exiting the adjustment process mode
1) Before entering the adjustment process mode, the AV position RESET in the video adjustment menu.
2) While holding down the “VOL (–)” and “INPUT” keys at a time, plug in the AC cord of the main unit to turn on the power.
The letter “<K>” appears on the screen.
3) Next, hold down the “VOL (–)” and “CH ()” keys at a time.
(The “VOL (–)” and “CH ()” keys should be pressed and held until the display appears.)
Multiple lines of blue characters appearing on the display indicate that the unit is now in the adjustment process mode.
When you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure.
4) To exit the adjustment process mode after the adjustment is done, unplug the AC cord from the outlet to make a forced shutdown. (When the
power was turned off with the remote controller, once unplug the AC cord and plug it again. In this case, wait 10 seconds or so before plugging.)
CAUTION: Use due care in handling the information described here lest your users should know how to enter the adjustment process mode. If the
4. Remote controller key operation and description of display in adjustment process mode
1) Key operation
Remote controller keyMain unit keyFunction
CH (/)CH (/)
VOL (+/–)VOL (+/–)Changing a selected item setting (+1/ –1)
Cursor (UP/DOWN)—————Turing a page (PREVIOUS/NEXT)
Cursor (LEFT/RIGHT)—————Changing a selected line setting (+10/ –10)
INPUT—————Input switching (toggle switching)
ENTER—————Executing a function
2) Description of display
settings are tampered in this mode, unrecoverable system damage may result.
2STB BOOT Version
3STB SUB VersionSub software version
4EQ DATA CHECKSUMAudio data checksum
5TEMPERATURESTB temperature
6STB SUB ERR CAUSE
7NORMAL STANDBY CAUSERefer to *1 under the list for details
8ERROR STANDBY CAUSERefer to *2 under the list for details
21INDUSTRY INITInitialization to factory settings
2INDUSTRY INIT(-Public)
3PUBLIC MODEPublic mode
4Center AcutimeAccumulated main operation time
5RESETReset
6VIC XPOSX-coordinate setting for VIC READ
7VIC YPOSY-coordinate setting for VIC READ
8VIC COLORCollected color data setting for VIC READ
9VIC SIGNAL TYPESignal type setting for VIC READ
10VIC READPicture level acquisition function
31N358 ALL ADJ(INPUT1)CVBS and TUNER signal level adjustment
2N358 ALL ADJ(INPUT2)
3N358 ALL ADJ(INPUT3)
4N358 MAIN ADJ(INPUT1)CVBS signal level adjustment
5N358 MAIN ADJ(INPUT2)
6N358 MAIN ADJ(INPUT3)
7TUNER DAC ADJTUNER signal level adjustment
8N358 CONTRAST A_GAIN
9N358 CONTRAST D_GAIN
10N358 CONTRAST OFFSET
11TUNER CONTRAST A_GAIN
12TUNER CONTRAST D_GAIN
41TUNER VCHIP TEST(69ch)Tuning test and VCHIP test (69ch)
2TUNER VCHIP TEST(7ch)Tuning test and VCHIP test (7ch)
3TUNER VCHIP TEST(10ch)Tuning test and VCHIP test (10ch)
4TUNER VCHIP TEST(15ch)Tuning test and VCHIP test (15ch)
5TUNER VCHIP TEST(4ch)Tuning test and VCHIP test (4ch)
6HDMI EDID WRITE
7HDMI CEC TEST
8INSPECT USB TERM
2BE G Limit
3Bass Center ATT
4Bass Vol0 MIN
5Bass Vol60 MIN
6Bass Vol60 Center
7Bass Vol0 MAX
8Bass Vol60 MAX
161Treble Center ATT
2Treble Vol0 MIN
3Treble Vol60 MIN
4Treble Vol60 Center
5Treble Vol0 MAX
6Treble Vol60 MAX
7VS Path
8VS Option
9VS SP Interval
10VS Width
11VS Input Gain(2ch)
171Bass AGC
2Bass Harmonics
3Bass LPF Fc
4Bass HPF Fc
5BassAGC Max
6BassAGC Min
7BassAGC Attack Time
8BassAGC Release Time
9BassAGC Threshold
10BassAGC HPF F0
11Bass Harmonics Level
12Bass Harmonics LPF F
13Bass Harmonics HPF F
181MONITOR TIME OUT
2MONITOR MAX TEMP
3
191TV TEST PATTERN 1
2TV TEST PATTERN 2
201KEY LOCK(1217)
2KOUTEI AREA ALL CLEAR
3A MODE AREA CLEAR
4BACKUP AREA CLEAR
5B MODE AREA CLEAR
6EXECUTION
211EEP SAVEWriting setting values to EEPROM
2EEP RECOVERReading setting values from EEPROM
3STANDBY CAUSE RESETReset stand by cause
4SETTING FOR ADJ
MONITOR ERROR CAUSE
RESET
3 – 7
Page 19
6. Special features
* STANDBY CAUSE (Page 1/21)
Display of a cause (code) of the last standby
The cause of the last standby is recorded in EEPROM whenever possible.
Checking this code will be useful in finding a problem when you repair the troubled set.
* EEP SAVE (Page 36/21)
Storage of EEP adjustment value
* EEP RECOVER (Page 36/21)
Retrieval of EEP adjustment value from storage area
7. Video signal adjustment procedure
*Adjustment process mode menu is listed in section 5.
7.1. Signal check
Signal generator level adjustment check (Adjustment to the specified level)
•Composite signal: 0.714Vp-p ± 0.02Vp-p (Pedestal to white level)
•15K component signal: Y level: 0.714Vp-p ± 0.02Vp-p (Pedestal to white level)PB, PR level: 0.7Vp-p ± 0.02Vp-p
•33K component signal: Y level: 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)PB, PR level:0.7Vp-p ± 0.02Vp-p
•Analog RGB:RGB level:0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
7.2. Entering the adjustment process mode
Enter the adjustment process mode according to the steps described in section 3.
Bring the cursor on [•ANALOG RGB ADJ] and press [ENTER].
[•ANALOG RGB ADJ OK] appears when finished.
Feed the NTSC signal to RF ANTENNA input.
Bring the cursor on [•TUNER VCHIP TEST (*07ch)] and press
[ENTER]. (*Select the channel according to the RF signal.)
[•A-OK (***.**)/VM-OK] appears in blue when finished. (If [A-NG/VM-
NG] appears in yellow or red, the test is incomplete.)
Make sure a displacement of ±0.0625 MHz from the center frequency is
acceptable.
XGA
100% color bar
3 – 9
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TU-X1U
8. Initialization to factory settings
CAUTION: When initialization is performed, all user setting data including the channel settings are initialized. Be cautious when making this adjust-
(The adjustments done in the adjustment process mode are not initialized.)
1InitializationIt turns off with AC power
After the adjustment, cancel the adjustment process mode.
To exit the adjustment process mode, unplug the AC power cable from the outlet to make a
forced shutdown. (When the power was turned off with the remote controller, once unplug the
power cable and plug it again. In this case, wait 10 seconds or so before plugging.)
Enter the adjustment process mode.
Bring the cursor on to [INDUSTRY INIT] in page 2/21.
Set to [ON] using [VOL] key, and press [ENTER] to execute the initialization.
When the version number screen shows up on the green background and “SUCCESS” gets
displayed at the top on screen, it means the procedure has been successfully carried out.
(If an error occurs, “ERROR” is displayed on the red background.)
•Turn off the AC power.
*Never shut off the power during the initialization process.
The following settings are initialized in this adjustment.
1) User setting
2) Channel data (e.g. broadcast frequencies)
3) Password data
4) Operation time
5) Auto installation flag
6) V-CHIP block setting
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TU-X1U
[2] PUBLIC MODE SETTING PROCEDURE
1. How to start Public Mode
• There are the following two ways to get the public mode setup screen displayed.
In the adjustment process mode, turn on “PUBLIC MODE”. Also press the “CH ()” and “VOL (+)” keys on the set at once and turn on the
power.
1) Press the “INPUT” and “VOL (+)” keys on the set at once and turn on the power.
2) Get the password input screen displayed.
Procedure
˴The input starts with the leftmost digit.
˴Use the numeric keys [1] thru [9] and [0] keys on the remote controller.
˴The other keys are not acceptable.
˴With a numeric-key input, "_" will change to "˴".
˴The input position will move one digit to the right.
˴With all the 3 digits entered, the password will be verified.
3) The 3-digit password is now verified.
The password [0] [2] [7] provides for the public mode screen. (This screen comes on with whatever adjustment process settings.)
With any other passwords, the screen changes to the normal mode.
2. How to exit Public Mode
There are the following ways to quit the public mode setup screen.
• Turn off “PUBLIC MODE” in the adjustment process mode. ( ) ← This way alone is not for quitting the setup screen, but for quitting the mode itself.
• Turn off the power with the “POWER” key. ( )
• Select “EXECUTE”. ( )
... “PUBLIC MODE” stays on in the adjustment process mode.
... The settings will be back to the factory ones.
3. Public Mode Setting Values
• With the factory settings made, the public mode settings get initialized. (The adjustment process remains intact.)
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TU-X1U
4. Public Mode Menu
The guidance is not displayed onscreen.
Setup procedure
• To move the cursor up and down, use the “cursor UP/DOWN” key (remote controller) and “CH ()/()” key (remote controller and set).
• To change the settings, use the “cursor RIGHT/LEFT” key (remote controller) and “VOL (+)/(–)” key (remote controller and set).
• To save new settings, keep the cursor at “EXECUTE” and use “ENTER” key (remote controller and set).
PUBLIC MODE
POWER ON FIXED[VARIABLE ]
MAXIMUM VOLUME[60 ]
VOLUME FIXED[VARIABLE ]
VOLUME FIXED LEVEL[20 ]
RC BUTTON[RESPOND ]
PANEL BUTTON[RESPOND ]
MENU BUTTON[RESPOND ]
AV POSITION FIXED[VARIABLE ]
ON SCREEN DISPLAY[YES]
INPUT MODE START[NORMAL]
INPUT MODE FIXED[VARIABLE ]
LOUD SPEAKER[ON]
RC_PATH_THROUGH[OFF]
232C POWON[DISABLE]
PUBLIC MODE[OFF]
RESET
EXECUTE
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TU-X1U
5. On Setting Items
* “EZ-SETUP” discussed below indicates “EZ-SETUP after the first power-on”.
1) POWER ON FIXED
SelectionSelection between “Variable” and “Fixed” (loop provided)
Default– (Variable)
ExplanationIn “Fixed” setting, the power-off by the power key of the unit is invalidated and the image is kept being received. The power can
Limit in SettingRefer to the “Power-On Fixed” sheet.
ExceptionNone
Remarks• In “Variable” setting, the power operation is in wait for 1 sec. and then turned off when the main power switch is off.
2) MAXIMUM VOLUME
SelectionAdjustment from 0 to 60 (no loop)
Default60
ExplanationSound volume can not be adjusted higher than the preset value.
Limit in Setting• When the sound volume is set lower than 59, only figures are displayed and the sound volume bar is not displayed.
Exception
Remarks• When the sound volume is set higher than the MAX setting by the adjusting process, the sound volume control operation is
3) VOLUME FIXED
SelectionSelection between “Variable”, “Fixed”, “ACON (AC CTRL)” and “AC/RCON (AC/RC CTRL)” (loop provided)
DefaultVariable
Explanation• FIXED: Fixed at the level adjusted for a fixed volume.
Limit in Setting• The sound volume for the ON-timer (Wake up timer) is fixed also without display of menu. Besides, the setting is made
Exception• In the item “VOLUME” of adjustment process, the sound volume can be set freely irrespective of this setting.
Remarks• As for sound volume fixing and sound volume MAX level, the sound volume fixing has priority.
4) VOLUME FIXED LEVEL
SelectionAdjustment from 1 to 60 (no loop)
Default60
ExplanationThe sound volume to be fixed by “Volume fixed” is determined.
Limit in SettingNone
ExceptionNone
RemarksSetting is valid only when “Volume fixed” is selected for “fixed”.
be turned off by stopping the power supply from AC.
• The maximum sound volume for ON-timer (Wake up timer) is limited also to the preset value.
prohibited for turn-up and the sound volume should be turned down to MAX in this state.
• AC CTRL: Start-up at the level specified for a fixed volume at ACON.
• AC/RC CTRL: Start-up at the level specified for a fixed volume at start.
impossible. (Basically, the menu is not displayed.)
• The following keys become invalid:
• Sound volume Up/Down (VOL +/–) [for both remote control and the unit]
• Mute (MUTE)
• Once the sound volume has been changed by adjustment process, it should be set back to the sound volume preset by
sound volume fixing level when the adjustment process ends.
5) R/C BUTTON
SelectionSelection between “Respond”, “No Respond” and “Limited” (loop provided)
DefaultRespond
ExplanationMaking the remote controller settings.
Limit in Setting
Exception• Adjustment process, inspection process and hotel only keys are valid irrespective of setting.
Remarks
• At the “No Respond” setting, the remote controller keys are disabled. Its power key (reception/standby key) is disabled too.
• At the “Limited” setting, some channel-related keys alone are operative. All the other remote controller keys (power, volume
/ , channel / , light control (brightness sensor), broadcast select) are inoperative.
In “No respond” setting, all the keys (including the power key) are not accepted.
•
All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
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TU-X1U
6) PANEL BUTTON
SelectionSelection between “Respond” and “No respond” (loop provided)
DefaultRespond
ExplanationAll the operations by keys (except the power key) of the unit can be invalidated.
Limit in Setting
Exception• Adjustment process, inspection mode and hotel menu mode can be started irrespective of setting.
Remarks
7) MENU BUTTON
SelectionSelection between “Respond” and “No respond” (loop provided)
DefaultRespond
ExplanationIn “No respond” setting, the menu operation by the menu key of the remote control and the menu key of the unit are invali-
Limit in Setting
Exception• Adjustment process, inspection mode and hotel menu mode can be started irrespective of setting.
Remarks
8) ON SCREEN DISPLAY
SelectionSelection between “Yes”, “No” (loop provided)
DefaultYes
Explanation• At the “No” setting, the following items are not displayed onscreen: register, setting, adjustment menu, channel call and vol-
Limit in Setting• Keys falling under any of the following items become invalid.
Others• Simple input switching is generated. Those which are restored soon after leaving as they are and may be requested for
Exception• Such a caution which is displayed independently is displayed as it is.
Remarks• When CC has already been ON, CLOSED CAPTION is displayed.
9) INPUT MODE START
Selection
DefaultNormal
ExplanationIn power-ON, the input source to be started or channel can be set.
About options• All the input sources in the model are made selectable.
Limit in Setting• The display of channel setting menu and the channel setting operation are prohibited.
Exception
Remarks• In setting at “Normal”, the setting of “Input mode fixed” is changed to “Variable” and selection should be prohibited.
• All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
dated.
• All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
ume bar.
On the wide-screen models, an input selection is immediately made because the menu is not displayed.
• At the “Limited” setting, some items cannot be displayed onscreen.
On the Japan-destined models, the channel call “Message” alone cannot be displayed. (This is because the channel call message may be confused with a message being sent from the hotel.)
On the North America-destined models, the OSD works the same as at the “No” setting.
Appearance of screen changes and the sound changes.
Personal functions which are hard to restore.
Screen display, menu, OFF-timer, ON-timer, AV MODE, screen size switching, clock setting, treble emphasis, AUDIO ONLY,
sound changeover, LANGUAGE, CLOSED CAPTION
change by customer are not prohibited.
Brightness sensor (BACKLIGHT) and PIC. FLIP
(In standard mode, the operation follows the last memory.)
• In TV mode, the channel to be set follows the last memory and the content of the last memory is included in the notation by
options. Ex.) Air (2), Cable (98.1) etc.
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TU-X1U
10)INPUT MODE FIXED
SelectionSelection between “Variable”, “Fixed”, “ACON (AC CTRL)” and “AC/RCON (AC/RC CTRL)” (loop provided)
Default– (Variable)
Explanation• At the “Fixed” setting, the TV set gets started with the settings of “Input mode start”, and then any other channels and inputs
Limit in Setting• With the execution of hotel mode, the input source is forced to change to that set by “Input mode start” and the channel
ExceptionNone
Remarks• In the following case, setting is cancelled and mode is changed to “Variable”.
11)RC_PATH_THROUGH
SelectionSelection between “OFF”, “ON: TV RCE” and “ON: TV RCD” (loop provided)
DefaultOFF
ExplanationFunction to feed the remote controller-received signal to Pin 9 (open) on the RS232C.
Limit in SettingNone
ExceptionNone
RemarksNone
12)AV POSITION FIXED
SelectionSelection between “Variable” and “Fixed” (loop provided)
DefaultVariable
ExplanationIn case of “Fixed” setting,
Limit in SettingNone
ExceptionNone
Remarks• When receiving with AV Position key, OPC, Dolby key and other direct audio select keys, the current display stays on and no
are not accepted.
• At the “ACON (AC CTRL)” setting, the TV set gets started with the settings of “Input mode start” under AC control.
• At the “AC/RCON (AC/RC CTRL)” setting, the TV set gets started with the settings of “Input mode start” under either control.
switching and input switching are prohibited thereafter.
• ON-timer's (Wake-up timer) channel items are not displayed or the operation is prohibited. (Basically, they are not displayed.)
• The following keys are invalidated.
CH/ , direct tuning button, FLASHBACK, input
However, the keys (input switching and CH / keys) of the unit for menu operation remain valid.
When the setting of “Input mode start” is set to “Normal”.
– Menu “Picture” and “Audio” setting can't be changed like “Dynamic (Fixed)”.
– When “AV Mode” key is pressed, TV just displays current AV Mode (cannot be changed.).
setting can be changed.
• Even by initializing personal information, the hotel-mode settings are kept intact. In this way, the AV positions, video and
audio adjustment settings are not initialized.
13)LOUD SPEAKER (ON/OFF)
SelectionSelection between “ON” and “OFF” (loop provided)
DefaultON
ExplanationIf “OFF” is selected, TV stops Speaker output even without Headphone connected.
Limit in SettingNone
ExceptionNone
Remarks• Press the volume UP/DOWN key, and the mute icon appears for 4 seconds.
14)232C POWON
SelectionSelection between “Disable” and “Enable” (loop provided)
DefaultDisable
ExplanationIn the standby mode, the power-on by the 232C command is enabled or disabled.
Limit in SettingNone
ExceptionNone
RemarksNone
• The mute key and audio-related keys are displayed with caution.
• Usually, the headphones and monitor audio outputs can be adjustable.
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15)PUBLIC MODE (ON/OFF)
SelectionSelection between “ON” and “OFF” (loop provided)
DefaultOFF
ExplanationIn case of “ON”, public mode settings are effected.
Limit in SettingNone
ExceptionNone
RemarksThe public-mode settings are operable only when this item is set at ON.
TU-X1U
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TU-X1U
TUX1U
CHAPTER 4. TROUBLESHOOTING TABLE
Service Manual
[1] TROUBLESHOOTING TABLE
No video (1)
COMPOSITE: No external input video
[INPUT-1]
Is INPUT-1 selected on the input select
menu screen?
NO
Select INPUT-1 on the input
select menu screen for the right
input signal.
Does the INPUT-1 IN1_V_PLG
detection function?
Check the line between pin (5)
of input terminal (J501) and pin
(J30) of IC8001(CPU).
J501 pin (5)
P1101 pin (21)
SC2202 pin (21)
IC8001 pin (J30)
YES
Is there the COMPOSITE signal input at pin
(AN16) of IC8001 (CPU)?
COMPOSITE: No external input video
[INPUT-2]
Is INPUT-2 selected on the input select menu
screen?
NO
Select INPUT-2 on the input
select menu screen for the right
input signal.
Does the INPUT-2 IN2_V_PLG
detection function?
Check the line between pin (2) of
input terminal (J501) and pin
(H32) of IC8001(CPU).
J501 pin (2)
P1101 pin (23)
SC2202 pin (23)
IC8001 pin (H32)
YES
Is there the COMPOSITE signal input at pin
(AN17) of IC8001 (CPU)?
COMPOSITE: No external input video
[INPUT-3]
Is INPUT-3 selected on the input select
menu screen?
NO
Select INPUT-3 on the input
select menu screen for the right
input signal.
Does the INPUT-3 IN3_VPLG
detection function?
Check the line between pin(7)
of input terminal (J2201) and
pin (AG33) of IC8001(CPU).
YES
Is there the COMPOSITE signal input at pin
(AP20) of IC8001 (CPU)?
NO
Check the line between pin (4)
of J501 and pin (AN16) of
IC8001.
J501 pin (4)
P501 pin (7)
SC2203 pin (7)
IC8001 pin (AN16)
YES
Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of IC8001 (CPU)?
LVDS_TX_0_DATA0_P/N (C7/B7), LVDS_TX_0_DATA1_P/N (E7/D7), LVDS_TX_0_DATA2_P/N (C6/B6), LVDS_TX_0_DATA3_P/N(C5/B5),
LVDS_TX_0_DATA4_P/N (E5/D5), LVDS_TX_0_CLK_P/N (E6/D6), LVDS_TX_1_DATA0_P/N (B4/A4), LVDS_TX_1_DATA1_P/N (E4/D4),
LVDS_TX_1_DATA2_P/N (B3/A3), LVDS_TX_1_DATA3_P/N (B1/B2), LVDS_TX_1_DATA4_P/N (F5/F6), LVDS_TX_1_CLK_P/N (C2/C3)
YES
Are the LVDS signal inputs at the LVDS 1st channel and 2nd channel of IC4601 (FPGA)?
LVDS_TX_0_DATA0_P/N (T3/R3), LVDS_TX_0_DATA1_P/N (T5/T4),
LVDS_TX_0_DATA2_P/N (R7/T7), LVDS_TX_0_DATA3_P/N (R11/P11),
LVDS_TX_0_DATA4_P/N (T13/R13), LVDS_TX_0_CLK_P/N (P9/N9),
LVDS_TX_1_DATA0_P/N (B14/A14), LVDS_TX_1_DATA1_P/N (B13/A13),
LVDS_TX_1_DATA2_P/N (A9/A10), LVDS_TX_1_DATA3_P/N (A4/A5),
LVDS_TX_1_DATA4_P/N (C3/B3), LVDS_TX_1_CLK_P/N (A8/B8)
YES
Are the Parallel Video Signal inputs at the pins of IC4504 (HDMI_Tx)?
HDMITX_G9-0 pin (71/72/73/74/75/77/78/79/80/81),
HDMITX_B9-0 pin (84/85/86/90/91/92/93/94/95/96),
HDMITX_R9-0 pin (56/57/58/59/60/61/62/63/67/68),
HDMITX_CLK pin (88), HDMITX_DE pin(1), HDMITX_HD pin (2), HDMITX_VD pin (3)
Check the line between pin (1) of
J501 and pin (AN17) of IC8001.
J501 pin (1)
P501 pin (17)
SC2203 pin (17)
IC8001 pin (AN17)
YES
NO
NO
Check the line between pin (6)
of J2201 and pin (AN17) of
IC8001.
YES
NO
Check IC8001 and its peripheral
circuits. (IC8151 thru IC8154,
etc.)
NOCheck the line between IC8001
NO
and IC4601, and their peripheral circuits.
Check the line between IC4601
and IC4504, and their peripheral circuits.
YES
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TU-X1U
Does the HOT PLUG detection function?NOCheck the line between SC4501
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?
YES
Does the HPD signal come from pin (19) of SC4501 (HDMI_OUTPUT) to pin (51) of IC4504
(HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-/+), (3/1)(D2-/
+), all of SC4501 (HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501
NOCheck the line between SC4501
and IC4503, and their peripheral circuits.
and IC4504, and their peripheral circuits.
Check the HDMI cable and
Monitor Unit.
and IC4504, and their peripheral circuits.
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TU-X1U
No video (2)
COMPONENT: No external input video [INPUT-1]COMPONENT: No external input video [INPUT-3]
Is INPUT-1 selected on the input select menu screen?
Is the INPUT-SELECT for the input signal?
NO
Select INPUT-1 on the input select menu screen
for the right input signal.
Does the INPUT-1 IN1_Y_PLG detection function?Does the INPUT-2 C2_PLUG detection function?
Check the line between pin (7) of input terminal
Are the LVDS signal inputs at the LVDS 1st channel and 2nd channel of IC4601
(FPGA)?
LVDS_TX_0_DATA0_P/N (T3/R3), LVDS_TX_0_DATA1_P/N (T5/T4),
LVDS_TX_0_DATA2_P/N (R7/T7), LVDS_TX_0_DATA3_P/N (R11/P11),
LVDS_TX_0_DATA4_P/N (T13/R13), LVDS_TX_0_CLK_P/N (P9/N9),
LVDS_TX_1_DATA0_P/N (B14/A14), LVDS_TX_1_DATA1_P/N (B13/A13),
LVDS_TX_1_DATA2_P/N (A9/A10), LVDS_TX_1_DATA3_P/N (A4/A5),
LVDS_TX_1_DATA4_P/N (C3/B3), LVDS_TX_1_CLK_P/N (A8/B8)
YES
Are the Parallel Video Signal inputs at the pins of IC4504 (HDMI_Tx)?
HDMITX_G9-0 pin (71/72/73/74/75/77/78/79/80/81),
HDMITX_B9-0 pin (84/85/86/90/91/92/93/94/95/96),
YES
Does the HOT PLUG detection function?NO
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?Check the line between SC4501 and IC4503,
NOCheck the line between IC8001and IC4601, and
their peripheral circuits.
NOCheck the line between IC4601 and IC4504,
and their peripheral circuits.
and their peripheral circuits.
4 – 3
Page 31
YES
Does the HPD signal come from pin(19) of SC4501 (HDMI_OUTPUT) to pin (51)
of IC4504 (HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-
/+), (3/1)(D2-/+), all of SC4501 (HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
TU-X1U
NOCheck the line between SC4501 and IC4504,
and their peripheral circuits.
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and IC4504,
and their peripheral circuits.
4 – 4
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TU-X1U
No video (3)
S-VIDEO: No external input video [INPUT-2]
Is INPUT-2 selected on the input select menu screen?
NO
Select INPUT-2 on the input select menu screen for the right
input signal.
Does the INPUT-2 IN2_Y_PLG detection function?
Check the line between pin (6) of input terminal (J502) and pin
(H33) of IC8001 (CPU).
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?NOCheck the line between SC4501 and IC4503,
and their peripheral circuits.
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Page 33
YES
Does the HPD signal come from pin (19) of SC4501 (HDMI_OUTPUT) to pin (51) of
IC4504 (HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-/+),
(3/1)(D2-/+), all of SC4501 (HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
TU-X1U
NOCheck the line between SC4501 and IC4504,
and their peripheral circuits.
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and IC4504,
and their peripheral circuits.
4 – 6
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TU-X1U
No video (4)
No video at UHF/VHF broadcast signal reception.No video at digital broadcast signal reception.
Is the specified TV signal selected on the input select menu screen?
Is there the analog video signal output (VIDEO) at pin (13) of
tuner (TU1101)?
NO
Check TU1101 and its peripheral circuits
(SDA3_5/SCL3_5, etc.).
YES
Is there the analog video signal input at pin (AM19) of
IC8001 (CPU)?
NO
Check the line between IC8001 and TU1101, and
their peripheral circuits (Q1103, etc.).
TU1101 pin (13)
P1101 pin (12)
SC2202 pin (12)
IC8001 pin (AM19)
YES
Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of
IC8001 (CPU)?
LVDS_TX_0_DATA0_P/N (C7/B7), LVDS_TX_0_DATA1_P/N (E7/D7),
LVDS_TX_0_DATA2_P/N (C6/B6), LVDS_TX_0_DATA3_P/N (C5/B5),
LVDS_TX_0_DATA4_P/N (E5/D5), LVDS_TX_0_CLK_P/N (E6/D6),
LVDS_TX_1_DATA0_P/N (B4/A4), LVDS_TX_1_DATA1_P/N (E4/D4),
LVDS_TX_1_DATA2_P/N (B3/A3), LVDS_TX_1_DATA3_P/N (B1/B2),
LVDS_TX_1_DATA4_P/N (F5/F6), LVDS_TX_1_CLK_P/N (C2/C3).
Are there the video signal outputs (IF_OUT_PT/NT) at the pins (19) and (20)
of tuner (TU1101)?
Are there the video signal inputs at pin (AM33) and (AM34) of IC8001 (CPU)?
NO
Check TU1101 and its peripheral circuits(SDA3_5/
SCL3_5, etc.).
YES
NO
Check the line between IC8001 and TU1101, and
their peripheral circuits (L2204, C2229, etc.).
YES
Are the Parallel Video Signal inputs at the pins of IC4504 (HDMI_Tx)?
HDMITX_G9-0 pin (71/72/73/74/75/77/78/79/80/81),
HDMITX_B9-0 pin (84/85/86/90/91/92/93/94/95/96),
HDMITX_R9-0 pin (56/57/58/59/60/61/62/63/67/68),
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?NOCheck the line between SC4501 and IC4503, and
YES
Does the HPD signal come from pin (19) of SC4501 (HDMI_OUTPUT) to pin
(51) of IC4504(HDMI_Tx)?
YES
NOCheck the line between IC8001 and IC4601, and
their peripheral circuits.
NOCheck the line between IC4601 and IC4504, and
their peripheral circuits.
their peripheral circuits.
NOCheck the line between SC4501 and IC4504, and
their peripheral circuits.
Check the HDMI cable and Monitor Unit.
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TU-X1U
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/
4)(D1-/+), (3/1)(D2-/+), all of SC4501 (HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and IC4504, and
their peripheral circuits.
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TU-X1U
HDMI: No external input video [INPUT-4]
Is INPUT-4 selected on the input select menu screen?
Select INPUT-4 on the input select menu screen for the right input signal.
Does the HOT PLUG detection function?
Does the DDC5V signal come from pin (18) of SC1501 to pin (30) of IC1502
(HDMI_Rx)?
Check the line between the input terminals of SC1501 and IC1502.
YES
Does the HPD signal come from pin(AD4) of IC8001 to pin(19) of SC1501?
Check the line between IC8001 and SC1501, and their peripheral
circuits. (Q1501, etc)
<HDMI input> No video (5)
NO
NO
NO
YES
Are there the TMDS signal inputs at pins(57/58)(CLK-/+), (61/62)(D0-/+), (65/66)(D1-/+),
(69/70)(D2-/+), all of IC1502(HDMI_Rx)?
NO
Is IC1504(EEPROM) accessed by I2C, with HDMI connected, to read the
DDC_I2C SCL/SDA data?
NO
Check the DDC line and its peripheral circuits.(IC1501, IC1504 and
YES
Are there the HD_DIV[29:0],HD_DVI_CLK_P,HD_DVI_VSYNC,HD_DVI_HSYNC,
HD_DVI_DE signal inputs to IC8001?
HD_DVI
29-20(AN10/AL11/AM10/AN9/AL10/AM9/AN8/AP8/AP7/AL9),
19-10(AM8/AH11/AJ10/AH10/AJ15/AH9/AK8/AH7/AK9/AM7),
9-0(AN6/AL8/AL7/AN5/AP5/AM6/AL6/AP4/AN4/AM5),
HD_DIV_CLK (AK10), HD_DVI_DE (AH12),
HD_DVI_HSYNC (AK11), HD_DVI_VSYNC (AH13)
YES
Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of IC8001(CPU)?
LVDS_TX_0_DATA0_P/N(C7/B7), LVDS_TX_0_DATA1_P/N(E7/D7),
Are the Parallel Video Signal inputs at the pins of IC4504(HDMI_Tx)?
HDMITX_G9-0 pin(71/72/73/74/75/77/78/79/80/81),
HDMITX_B9-0 pin(84/85/86/90/91/92/93/94/95/96),
HDMITX_R9-0 pin(56/57/58/59/60/61/62/63/67/68),
HDMITX_CLK pin(88), HDMITX_DE pin(1), HDMITX_HD pin(2), HDMITX_VD pin(3)
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin(18) of SC4501(HDMI_OUTPUT)?NOCheck the line between SC4501 and
YES
Does the HPD signal come from pin(19) of SC4501(HDMI_OUTPUT) to pin(51) of
IC4504(HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins(12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-/+), (3/
1)(D2-/+), all of SC4501(HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NOCheck the line between IC4601 and
IC4504, and their peripheral circuits.
IC4503, and their peripheral circuits.
NOCheck the line between SC4501 and
IC4504, and their peripheral circuits.
Check the HDMI cable and Monitor
Unit.
NOCheck the line between SC4501 and
IC4504, and their peripheral circuits.
4 – 10
Page 38
TU-X1U
<HDMI input> No video (6)
HDMI: No external input video [INPUT-5]HDMI: No external input video [INPUT-6]
Is INPUT-5 selected on the input select menu screen?Is INPUT-6 selected on the input select menu screen?
NO
Select INPUT-5 on the input select menu screen for
the right input signal.
Does the HOT PLUG detection function?Does the HOT PLUG detection function?
Does the DDC5V signal come from pin(18) of
SC1601 to pin (32) of IC1604 (HDMI_SW1)?
NO
Check the line between the input
YES
Does the HPD signal come from pin (16) of IC1604 to
pin (19) of SC1601?
YES
Are there the TMDS signal inputs at pins (18/19)(CLK-/+), (21/
22)(D0-/+), (24/25)(D1-/+), (27/28)(D2-/+), all of IC1604
(HDMI_SW1)?
Is IC1601 (EEPROM) accessed by I2C, with HDMI
connected, to read the DDC_I2C SCL/SDA data?
terminals of SC1601 and IC1604.
NONO
Check the line between IC1604 and
SC1601, and their peripheral cir-
cuits. (Q1602, etc)
NO
NO
Select INPUT-6 on the input select menu screen
for the right input signal.
Does the DDC5V signal come from pin (18) of
SC1602 to pin (52) of IC1604 (HDMI_SW1)?
NO
Check the line between the input
terminals of SC1602 and IC1604.
YES
Does the HPD signal come from pin (36) of IC1604
to pin (19) of SC1602?
Check the line between IC1604
and SC1602, and their peripheral
YES
Are there the TMDS signal inputs at pins (38/39)(CLK-/+), (41/
42)(D0-/+), (44/45)(D1-/+), (47/48)(D2-/+), all of IC1604
(HDMI_SW1)?
Is IC1603 (EEPROM) accessed by I2C, with HDMI
connected, to read the DDC_I2C SCL/SDA data?
circuits. (Q1603, etc)
NO
NONO
Check the DDC line and its peripheral circuits. (IC1601, IC1606 and
YES
Are there the TMDS signal inputs at pins (39/40)(CLK-/+), (43/44)(D0-/+), (47/48)(D1-/+), (51/
52)(D2-/+), all of IC1502 (HDMI_Rx)?
YES
Are there the HD_DIV[29:0],HD_DVI_CLK_P,HD_DVI_VSYNC,HD_DVI_HSYNC,
HD_DVI_DE signal inputs to IC8001?
HD_DVI
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?NOCheck the line between SC4501
YES
Does the HPD signal come from pin (19) of SC4501 (HDMI_OUTPUT) to pin (51) of IC450
4(HDMI_Tx)?
YES
NOCheck the line between IC8001
and IC4601, and their peripheral
circuits.
NOCheck the line between IC4601
and IC4504, and their peripheral
circuits.
and IC4503, and their peripheral
circuits.
NOCheck the line between SC4501
and IC4504, and their peripheral
circuits.
Check the HDMI cable and Monitor Unit.
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-/+), (3/
1)(D2-/+), all of SC4501 (HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501
and IC4504, and their peripheral
circuits.
4 – 12
Page 40
TU-X1U
<HDMI input> No video (7)
HDMI: No external input video [INPUT-7]HDMI: No external input video [INPUT-8]
Is INPUT-7 selected on the input select menu screen?Is INPUT-8 selected on the input select menu screen?
NO
Select INPUT-7 on the input select menu screen for the
right input signal.
Does the HOT PLUG detection function?Does the HOT PLUG detection function?
Does the DDC5V signal come from pin (18) of SC1701
to pin (32) of IC1701 (HDMI_SW2)?
NO
Check the line between the input terminals
of SC1701 and IC1701.
YES
Does the HPD signal come from pin (16) of IC1701 to pin
(19) of SC1701?
NONO
Check the line between IC1701 and
SC1701, and their peripheral circuits.
(Q1701, etc.)
YES
Are there the TMDS signal inputs at pins (18/19)(CLK-/+), (21/
22)(D0-/+), (24/25)(D1-/+), (27/28)(D2-/+), all of IC1701
(HDMI_SW2)?
NO
Is IC1703 (EEPROM) accessed by I2C, with HDMI connected, to read the DDC_I2C SCL/SDA data?
NO
Select INPUT-8 on the input select menu screen for
the right input signal.
Does the DDC5V signal come from pin(18) of SC1702
to pin (52) of IC1701 (HDMI_SW2)?
NO
Check the line between the input terminals of SC1702 and IC1701.
YES
Does the HPD signal come from pin (36) of IC1701 to
pin (19) of SC1702?
Check the line between IC1701 and
SC1702, and their peripheral circuits.
(Q1702, etc.)
YES
Are there the TMDS signal inputs at pins (38/39)(CLK-/+), (41/
42)(D0-/+), (44/45)(D1-/+), (47/48)(D2-/+), all of IC1701
(HDMI_SW2)?
NO
Is IC1704(EEPROM) accessed by I2C, with HDMI
connected, to read the DDC_I2C SCL/SDA data?
NONO
Check the DDC line and its peripheral circuits. (IC1701, IC1703 and its peripherals).
YES
Are there the TMDS signal inputs at pins (58/59)(CLK-/+), (61/62)(D0-/+), (64/65)(D1-/+),
(67/68)(D2-/+), all of IC1604 (HDMI_SW1)?
YES
Are there the TMDS signal inputs at pins (39/40)(CLK-/+), (43/44)(D0-/+), (47/48)(D1-/+),
(51/52)(D2-/+), all of IC1502 (HDMI_Rx)?
YES
Are there the HD_DIV[29:0],HD_DVI_CLK_P,HD_DVI_VSYNC,HD_DVI_HSYNC,
HD_DVI_DE signal inputs to IC8001?
HD_DVI
Check the DDC line and its peripheral
circuits. (IC1701, IC1704 and its peripherals).
NOCheck IC1604, IC1701 and their periph-
eral circuits.
NOCheck IC1502, IC1604 and their periph-
eral circuits.
NOCheck the line between IC1502 and
IC8001, and their peripheral circuits.
4 – 13
Page 41
TU-X1U
Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of IC8001 (CPU)?
LVDS_TX_0_DATA0_P/N (C7/B7), LVDS_TX_0_DATA1_P/N(E7/D7),
LVDS_TX_0_DATA2_P/N (C6/B6), LVDS_TX_0_DATA3_P/N(C5/B5),
LVDS_TX_0_DATA4_P/N (E5/D5), LVDS_TX_0_CLK_P/N(E6/D6),
LVDS_TX_1_DATA0_P/N (B4/A4), LVDS_TX_1_DATA1_P/N(E4/D4),
LVDS_TX_1_DATA2_P/N (B3/A3), LVDS_TX_1_DATA3_P/N(B1/B2),
LVDS_TX_1_DATA4_P/N (F5/F6), LVDS_TX_1_CLK_P/N(C2/C3),
YES
Are the LVDS signal inputs at the LVDS 1st channel and 2nd channel of IC4601 (FPGA)?
LVDS_TX_0_DATA0_P/N (T3/R3), LVDS_TX_0_DATA1_P/N (T5/T4),
LVDS_TX_0_DATA2_P/N (R7/T7), LVDS_TX_0_DATA3_P/N (R11/P11),
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?NOCheck the line between SC4501 and
NOCheck IC8001 and its peripheral cir-
cuits. (IC8151 thru IC8154, etc.)
NOCheck the line between IC8001 and
IC4601, and their peripheral circuits.
NOCheck the line between IC4601 and
IC4504, and their peripheral circuits.
IC4503, and their peripheral circuits.
YES
Does the HPD signal come from pin (19) of SC4501 (HDMI_OUTPUT) to pin(51) of
IC4504 (HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-/+), (3/
1)(D2-/+), all of SC4501 (HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and
IC4504, and their peripheral circuits.
Check the HDMI cable and Monitor
Unit.
NOCheck the line between SC4501 and
IC4504, and their peripheral circuits.
4 – 14
Page 42
TU-X1U
No video (8)
PC: No external input video [INPUT-9]
Is INPUT-9 selected on the input select menu screen?
NO
Select INPUT-9 on the input select menu screen for the right input
signal.
Is IC2202 (EEPROM) accessed by I2C, with PC connected, to
read the DDC_I2C SCL/SDA data?
Check the DDC line and its peripheral circuits. (IC2202 and its
peripherals).
YES
Are there the video signal inputs at pins (AN15)(G), (AM15)(B) and (AK16)(R) of
IC8001 (CPU)?
Are there the VSYNC/HSYNC signal inputs at pins (AJ16) and (AH16) of IC8001?
YES
Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of
IC8001(CPU)?
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?NOCheck the line between SC4501 and IC4503,
YES
Does the HPD signal come from pin (19) of SC4501 (HDMI_OUTPUT) to pin (51)
of IC4504 (HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1/+), (3/1)(D2-/+), all of SC4501 (HDMI_OUTPUT)?
NOCheck the line between IC8001 and IC4601, and
their peripheral circuits.
NOCheck the line between IC4601 and IC4504, and
their peripheral circuits.
and their peripheral circuits.
NOCheck the line between SC4501 and IC4504,
and their peripheral circuits.
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and IC4504,
and their peripheral circuits.
YES
Check the HDMI cable and Monitor Unit.
4 – 15
Page 43
No audio (1)
INPUT-1 No audio.INPUT-2 No audio.
Is INPUT-1 selected on the input select menu screen?Is INPUT-2 selected on the input select menu screen?
TU-X1U
NO
Is the audio output selected for "VARIABLE"
on the menu screen?
Set the audio output to "FIXED".Set the audio output to "FIXED".
YES
Does the audio signal come from pins (14)(L) and (10)(R) of
input terminal (J501) to pins (35)(L) and (36)(R) of IC1403
(CODEC)?
YES
Does the I2S signal come from pins (4)(COD_LRCK), (5)(COD_BCK) and
(6)(COD_SDOUT) of IC1403 to pins (AK24), (AH24) and (AJ24) of IC8001 (CPU)?
YES
Does the I2S signal come from pins (AL24)(DSP_MCLK1), (AK25)(DSP_BCKIN1),
(AJ25)(DSP_LRCK1), (AL25)(DSP_SDIN1) of IC8001(CPU) to pins (5), (11), (10), (9) of
IC4504(HDMI_Tx)
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin (18) of SC4501(HDMI_OUTPUT)?NOCheck the line between SC4501 and
YES
Does the audio signal come from pins (12)(L) and (8)(R) of input terminal
(J501) to pins (37)(L) and (38)(R) of IC1403 (CODEC)?
YES
Is the audio output selected for "VARIABLE" on the
menu screen?
IC8001, and their peripheral circuits
(X1401, IC1401, etc.).
NOCheck the line between IC8001 and
IC4504, and their peripheral circuits.
IC4503, and their peripheral circuits.
NO
NO
YES
Does the HPD signal come from pin (19) of SC4501(HDMI_OUTPUT) to pin (51) of
IC4504(HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins(12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-/+), (3/
1)(D2-/+), all of SC4501(HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and
IC4504, and their peripheral circuits.
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and
IC4504, and their peripheral circuits.
4 – 16
Page 44
TU-X1U
No audio (1)
INPUT-3 No audio.
Is INPUT-3 selected on the input select menu screen?
NO
Is the audio output selected for "VARIABLE" on the
menu screen?
Set the audio output to "FIXED".
Does the audio signal come from pins(5)(L) and (4)(R) of input terminal(J2201) to pins(40)(L) and (41)(R) of IC1403(CODEC)?
NO
YES
Does the I2S signal come from pins (4)(COD_LRCK), (5)(COD_BCK) and
(6)(COD_SDOUT) of IC1403 to pins (AK24), (AH24) and (AJ24) of IC8001 (CPU)?
YES
Does the I2S signal come from pins (AL24)(DSP_MCLK1), (AK25)(DSP_BCKIN1),
(AJ25)(DSP_LRCK1), (AL25)(DSP_SDIN1) of IC8001 (CPU) to pins (5), (11), (10), (9) of
IC4504 (HDMI_Tx)
Check the line between J2201 and IC1403.
NOCheck the line between IC1403 and
IC8001, and their peripheral circuits
(X1401, IC1401, etc.).
NOCheck the line between IC8001 and
IC4504, and their peripheral circuits.
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?NOCheck the line between SC4501 and
YES
Does the HPD signal come from pin (19) of SC4501 (HDMI_OUTPUT) to pin (51) of
IC4504 (HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-/+), (3/
1)(D2-/+), all of SC4501 (HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and
NOCheck the line between SC4501 and
IC4503, and their peripheral circuits.
IC4504, and their peripheral circuits.
Check the HDMI cable and Monitor Unit.
IC4504, and their peripheral circuits.
4 – 17
Page 45
No audio (2)
[HDMI analog audio input] INPUT-5 No audio.[PC analog audio input] INPUT-9 No audio.
Is INPUT-5 selected on the input select menu screen?Is INPUT-9 selected on the input select menu screen?
TU-X1U
NO
Is the audio output selected for "VARIABLE" on
the menu screen?
Set the audio output to "FIXED".Set the audio output to "FIXED".
Is the HDMI audio output selected for "Digital"
on the menu screen?
Set the HDMI audio output to "Analog".
YES
Does the audio signal come from pins(2)(L) and (4)(R) of input
terminal(J601) to pins(43)(L) and (44)(R) of IC1403(CODEC)?
NO
Check the line between J601 and IC1403.
J601 pin (2)(L) pin (4)(R)
P601 pin (5) pin (7)
P1401 pin (5) pin (7)
YES
Does the I2S signal come from pins(4)(COD_LRCK), (5)(COD_BCK) and (6)(COD_SDOUT)
of IC1403 to pins(AK24), (AH24) and (AJ24) of IC8001(CPU)?
YES
Does the I2S signal come from pins(AL24)(DSP_MCLK1), (AK25)(DSP_BCKIN1),
(AJ25)(DSP_LRCK1), (AL25)(DSP_SDIN1) of IC8001(CPU) to pins(5), (11), (10), (9) of
IC4504(HDMI_Tx)
IC1403 pin (43) pin (44)
YES
Does the audio signal come from pins(2)(L) and (3)(R) of input terminal(J603) to pins(46)(L) and (47)(R) of IC1403(CODEC)?
YES
NO
Is the audio output selected for "VARIABLE" on the
menu screen?
IC8001, and their peripheral circuits(X1401, IC1401, etc.).
NOCheck the line between IC8001 and
IC4504, and their peripheral circuits.
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin(18) of SC4501(HDMI_OUTPUT)?NOCheck the line between SC4501 and
YES
Does the HPD signal come from pin(19) of SC4501(HDMI_OUTPUT) to pin(51) of
IC4504(HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins(12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-/+), (3/
1)(D2-/+), all of SC4501(HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and
NOCheck the line between SC4501 and
IC4503, and their peripheral circuits.
IC4504, and their peripheral circuits.
Check the HDMI cable and Monitor
Unit.
IC4504, and their peripheral circuits.
4 – 18
Page 46
TU-X1U
No audio (3)
No audio at UHF/VHF broadcast signal reception.No audio at digital broadcast signal reception.
Is TV selected on the input select menu screen?Is TV selected on the input select menu screen?
NO
Is the audio output selected for "VARIABLE" on the
menu screen?
Set the audio output to "FIXED".Set the audio output to "FIXED".
YES
Is there the SIF signal output at pin (15) of tuner (TU1101)?Are there the video signal outputs (IF_OUT_PT/NT) at the pins (19) and (20)
NO
Check the tuner (TU1101) and its peripheral circuits.Check TU1101 and its peripheral circuits (SDA3_5/SCL3_5, etc.).
YES
Does the SIF signal come from pin(15) of tuner (TU1101) to pin
(AN23) of IC8001 (CPU)?
NO
Check the line between TU1101 and IC8001, and
their peripheral circuits. (Q1101, Q1102, etc.)
TU1101 pin (15)
P1101 pin (10)
SC2202 pin (10)
YES
Does the I2S signal come from pins (AL24)(DSP_MCLK1), (AK25)
(DSP_BCKIN1), (AJ25)(DSP_LRCK1), (AL25)(DSP_SDIN1) of IC8001 (CPU)
to pins (5), (11), (10), (9) of IC4504 (HDMI_Tx)
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?NOCheck the line between SC4501 and IC4503, and
IC8001 pin (AN23)
of tuner (TU1101)?
Are there the video signal inputs at pin (AM33) and (AM34) of IC8001 (CPU)?
Is the audio output selected for "VARIABLE" on the menu screen?
YES
YES
Check the line between TU1101 and IC8001, and their peripheral
circuits (L2204, C2229, etc.).
YES
Does the HPD signal come from pin (19) of SC4501 (HDMI_OUTPUT) to pin
(51) of IC4504 (HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/4)
(D1-/+), (3/1)(D2-/+), all of SC4501 (HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and IC4504, and
their peripheral circuits.
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and IC4504, and
their peripheral circuits.
4 – 19
Page 47
INPUT-4 No audio (HDMI connected)
INPUT-5 No audio (HDMI connected)
INPUT-6 No audio (HDMI connected)
INPUT-7 No audio (HDMI connected)
INPUT-8 No audio (HDMI connected)
TU-X1U
No audio (4)
[INPUT-4 input]
Is INPUT-4 selected on the input select menu screen?
[INPUT-5 input]
Is INPUT-5 selected on the input select menu screen?
[INPUT-6 input]
Is INPUT-6 selected on the input select menu screen?
[INPUT-7 input]
Is INPUT-7 selected on the input select menu screen?
[INPUT-8 input]
Is INPUT-8 selected on the input select menu screen?
YES
[INPUT-4 input]
If no video appears, refer to "No external input video (HDMI) [INPUT-4]".
[INPUT-5 input]
If no video appears, refer to "No external input video (HDMI) [INPUT-5]".
[INPUT-6 input]
If no video appears, refer to "No external input video (HDMI) [INPUT-6]".
[INPUT-7 input]
If no video appears, refer to "No external input video (HDMI) [INPUT-7]".
[INPUT-8 input]
If no video appears, refer to "No external input video (HDMI) [INPUT-8]".
YES
Does the SPDIF signal come from pin (78) of IC1502 (HDMI_Rx) to pin (AM11/
AN11)(SPDIF_IN_N/SPDIF_IN_P) of IC8001 (CPU)?
NOIs the audio output selected for "VARI-
ABLE" on the menu screen?
Set the audio output to "FIXED".
NOCheck the line between IC8001 and
IC1502, and their peripheral circuits.
YES
Does the I2S signal come from pins (AL24)(DSP_MCLK1), (AK25)(DSP_BCKIN1),
(AJ25)(DSP_LRCK1), (AL25)(DSP_SDIN1) of IC8001 (CPU) to pins (5), (11), (10), (9) of
IC4504 (HDMI_Tx)
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?NOCheck the line between SC4501 and
YES
Does the HPD signal come from pin (19) of SC4501 (HDMI_OUTPUT) to pin (51) of
IC4504 (HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-/+), (3/
1) (D2-/+), all of SC4501 (HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NOCheck the line between IC8001 and
IC4504, and their peripheral circuits.
IC4503, and their peripheral circuits.
NOCheck the line between SC4501 and
IC4504, and their peripheral circuits.
Check the HDMI cable and Monitor Unit.
NOCheck the line between SC4501 and
IC4504, and their peripheral circuits.
4 – 20
Page 48
TU-X1U
No audio signal at Digital Audio Output terminal (Analog sound heard)
No INPUT-4/5/6/7/8 (HDMI) audio.No audio at digital broadcast signal reception.
If no video appears, refer to "No external input video
(HDMI) [INPUT-4/5/6/7/8]".
Is the HDMI_MUTE line as specified?Check TU1101 and its peripheral circuits (SDA3_5/
NO
Check Q1301, IC1302 and their peripheral
circuits.
YES
Is there the SPDIF signal output (SPDIF_OUT) at pin (AP11) of IC8001 (CPU)?NOCheck the IC8001 and its peripheral cir-
YES
Is there the SPDIF signal (SPDIF_OUT) input at pin (4) of IC1307 (CODEC2)?NOCheck the line between IC8001 and
YES
Does the I2S signal come from pins (11)(BCLK), (10)(LRCLK), (12)(DATA) of IC1307
(CODEC2) to pin s(16), (1), (2) of IC1305(DELAY1)
Are there the video signal outputs (IF_OUT_PT/NT) at the pins (19)
and (20) of tuner (TU1101)?
NO
SCL3_5, etc.).
YES
Are there the video signal inputs at pin (AM33) and (AM34) of IC8001
(CPU)?
NO
Check the line between TU1101 and IC8001, and their
peripheral circuits (L2204, C2229, etc.).
Is the audio output from the monitor set at "VARIABLE" or
"FIXED" on the menu screen?
YES
Does the I2S signal come from pins (AL24)(DSP_MCLK2),
(L33)(DSP_BCKIN2), (M30)(DSP_LRCK2), (L32)(DSP_SDIN2)
of IC8001 (CPU) to pins (10), (9), (8), (12) of IC1403 (CODEC)
YES
Does the audio signal come from pins (24)(LINE_L) and (25)
(LINE_R) of IC1403 to pins (2)(L) and (4)(R) of J602?
NOCheck the I2C line (SCL0/SDA0) and IC1403.
NOCheck IC8001 and IC1403, and their peripheral circuits.
NOCheck the line between IC1403 and J505 and their peripheral
J602 pin (2) pin (4)
Check the LINE_MUTE line and its peripheral circuits (Q1310
thru Q1311, etc).
4 – 22
Page 50
TU-X1U
No connect network
Dose the signal come to 1 pin of LAN-jack J9501? (see fig-1, fig-2)YESCheck the interface device and peripheral circuits. (power-
NO
Dose the signal come to 1pin of IC9501? (see fig-2)
(IC9501:RTL8100C)
NO
Dose the 3.3Vdc come to VDD33/AVDD33 of IC9501?
Dose the 2.5Vdc come to VDD25/AVDD25 of IC9501?
YES
Dose the clock signal come to 121pin of IC9501? (25MHz, 3.3V)NOCheck the line between X9501 and IC9501.
YES
Dose the 200kHz clock signal come to 2pin of IC9502?
(IC9502:BR93L4RW)
YES
Check IC9501 and its peripheral circuits.
YESCheck the line between J9501 and IC9501.
NOCheck the power-circuits of 3.3V.
NOCheck the line between IC9502 and IC9501.
LED of hub, LINK-LED of hub)
Check the LAN-jack J9501.
Check Q9501. (2.5V reg-Tr)
Check the crystal X9501. (SCA176WJ)
Check the LAN-jack J9501.
fig-1. LAN-jack J9501
1pin
When IC9502 is defective, it becomes a MAIN unit exchange.
fig-2
4 – 23
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TU-X1U
TUX1U
CHAPTER 5. MAJOR IC INFORMATIONS
Service Manual
[1] MAJOR IC INFORMATIONS
IC1604 (VHiSii9185A-1Q)
This IC is TMDS switch device supporting Revision 1.3 of the HDMI Specification with three HDMI inputs and a signal output. This IC is used to select
a single set of HDMI/DVI signals from three HDMI/DVI receiver-ports and to generate a fully compliant HDMI/DVI stream as an output. This includes
DDC switching, Individual HPD control, and 5V sense. The HDMI output signal is sent to IC1502(HDMI receiver).
IC1701 (VHiSii9185A-1Q)
Please refer to the above sentence. This IC is used to select a single set of HDMI/DVI signals from two HDMI/DVI receiver-ports. The HDMI output
signal is sent to IC1604(TMDS switch).
IC1502(VHiSii9135A-1Q)
This IC is HDMI 1.3 receiver. This is used to select either the signal from IC 1604 or the HDMI signal from Input1. In addition, this IC is used to convert
TMDS into 30-bit digital signal (RGB/YCbCr) and outputs them to IC 8001.
IC1307 (VHiAK4683EQ-1Q)
This IC is used for OPT output. S/PDIF signal from IC8001 is converted into I2S signal by this IC. I2S signal is sent to IC1305,IC1306 (I2S delay IC)
to adjust time difference between video and audio and the return-signal is converted into S/PDIF again by IC1307. Finally, IC1307 sends the signal to
OPT connector.
IC1403 (VHiAK4682AE-1Y)
This IC provides for 2-channel A/D and 4-channel D/A (192-kHz sampling). The analog audio signal from each input (INPUT1,2,3 (analog audio for
Composite, component, S-terminal) or INPUT-6 (HDMI-analog audio) or INPUT-7 (RGB-analog audio)) is fed into this IC for selection. The selected
signal is converted into digital signal (I2S) and flows into the video signal processing circuit IC8001 (RH-iXC552WJQZQ). I2S signal which is processed by DSP included in IC8001 is sent to IC4504 for HDMI output or returns to IC1403 for analog-audio output.
IC4601 (RH-iXC423WJQZQ)
This IC is FPGAs and is designed to have the function to convert LVDS which IC 8001 outputs into 30bit digital signal (RGB, YCbCr). These signals
are sent to IC4504 (HDMI_Tx).
IC4504 (VHiSii9134+-1Q)
This IC is HDMI Transmitter supporting the DHMI 1.3. This IC receives 30bit digital signals which IC8001 outputs and outputs TMDS to HDMI connector (SC4501). This IC comes pre-programmed with HDCP keys and provides the highest level of HDCP key security available. This IC is capable of
supporting the resolutions of up to 1080p.
IC2002 (RH-iXC331WJN1Q)
The monitor microprocessor is intended to communicate with the main microprocessor and to operate the system. It also controls power of the entire
system.
IC8001 (RH-iXC552WJQZQ)
This LSI is FULL HIGH-DEFINITION 1080P DIGITAL TV SYSTEM-ON-A-CHIP. It combines a cable/terrestrial 4/1024-QAM and 8/16-VSB receiver, a
transport processor, a digital audio processor, a high definition (HD) MPEG video decoder, 2D graphics processing, digital processing of analog video
and audio, analog video digitizer and DAC functions, stereo high-fidelity audio DACs, two HDMI receivers for 1080p60 inputs, a 330-MHz millions of
instructions per second (MIPS) processor, and a peripheral control unit providing a variety of television control functions. The cable/terrestrial receiver
directly samples a tuner output with an analog-to-digital (ADC) converter. The LSI digitally resamples and demodulates the signal with recovered
clock and carrier timing, filters and equalizes the data, and passes soft decisions to an ATSC A/53 and ITU-T J.83 Annex A/B/C-compatible decoder.
It has an MPEG-2 Digital Video Broadcasting (DVB)-compliant transport processor with advanced section filtering capability, DVB descrambler, and
an MPEG-2 (MP@HL profile) video decoder. Audio support includes a BTSC and a Dolby AC3/MPEG-2 Layer 1, 2, audio decoder. The LSI provides
analog and digital audio/video outputs. A SPDIF output and a pair of analog outputs (L-R) are provided via the integrated audio DACs. The NTSC
analog video decoder is supported by its own motion adaptive deinterlacing and 3D comb filtering, including 1080i deinterlacing. The LSI includes
advanced 2D graphics processing. Two transport stream inputs are included. The LSI incorporates a complete MIPS32(r)-based microprocessor subsystem including caches with bridging to memory and a local bus, where external peripherals can be attached. Integrated periphe
USB 2.0, three UARTs, counter/timers and GPIO controllers.
rals include two
IC8151,IC8152,IC8153,IC8154(RH-iXC187WJQZQ)
These ICs are 512Mb DDR. These have the function to store the temporary data IC8001 handles.
5 – 1
Page 52
TU-X1U
IC8452 (RH-iXC418WJQZQ)
The 256-Mbit page mode flash memory device stores the main CPU program.
IC9501 (VHiRTL8100C-1Q)
This IC is Ethernet controller that provides 32-bit performance, PCI bus master capability, and full compliance with IEEE 802.3u 100Base-T specifications and IEEE 802.3x Full Duplex Flow Control. It also supports the ACPI.
5 – 2
Page 53
TU-X1U
6 – 1
TUX1U
Service Manual
CHAPTER 6. OVERALL WIRING/BLOCK DIAGRAM
[1] OVERALL WIRING DIAGRAM
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OVERALL WIRING DIAGRAM
BtoB
BtoB
POWER
UNIT
MAIN
UNIT
SUB_TERMINAL
UNIT
TERMINAL
UNIT
FAN
MA
MA
MB
MB
PM
PD
KM
KM
KEY
UNIT
VD
VD
FAN
QCNW-H699WJQZ
QCNW-H701WJQZ
QCNW-H700WJQZ
Page 54
TU-X1U
6 – 2
[2] SYSTEM BLOCK DIAGRAM
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BLOCK DIAGRAM
+5V
IC8001
BCM3553 D0(Full-HD)
DigitalAV decode & Main CPU
N_CPU_RST
IC1403
CODEC
AK4682AE
LocalBUS/PCI
LVDSOUT
USB
IFin
DTV/I2S
DTV/SPDIF
I2C_0
I2C_1
RESET
UART-A
UART-B
AGC
RGBin
H/V
CVBS/S/YPbPr
DVIDATA[29:0]
DVICLK
DVIHSYNC
DVIVSYNC
DVIDE
I2C_2
MAIN
SIF
SPDIF_OUT
Thermister
IN1_Y,IN1_CB, IN1_CR, IN1_Y_PLG
HDMI_L/R
IN1
IN1_L/R
IN6
IN5
OUT1
OUT2
HDMI3
SC1602
OPTICAL
OUT
IC1604
TMDS-SW
SII9185A
CVBS
RX_x8
LINE_OUT_L/R
+3.3V
AFT
HDMIAudio
J601
INPUT
1
INPUT
2
IN1_L/R
IN2
HDMI_L/R
IC1301
I/O
M62320
+5V
IC8155
VTT
IC8151-4
DDR1(400)
512Mb*4
LINE_L/R
Disclete
Mute
LINE_MUTE
N_SRESET
In1
In0
IC1603
EEPROM
IN3
INPUT
3
PC_L/R
RGBAudio
(MiniPlug)
HDMI2
SC1601
RX_x8
IC1601
EEPROM
In2
+3.3V
PC_L/R
IN4
OPT_DLY_OUT
IC1304
Mute
I2S
CVBS/LR
SVideo
AudioOut
X'tal
12.288MHz
RST_UCOM
FLASW_UCOM
RS_BUF_CNT
CNVss
54.000MHz
X8001
X'tal
33MHz
I2S
N_DBG_RST
ToReset of each IC
I2C0 (100KHz 3.3V)
Terminal
IC1504
EEPROM
IC8454
EEPROM
64kbit
UART-C
INPUT
5
INPUT
6
INPUT
7
INPUT
4
CVBS/LR
Component
RFIN
TU1101
Analog/
Digital
Tuner
D_IF
AG
+5V
IC9003
RS232CTxRx
M3221EIP
RS-232C
SC601
+3.3V
I2C1 (100KHz 3.3V)
I2C_3
I2C3 (100KHz5V)
OUT3
RESET_OUTb
N_RST_CODEC
I2S0_BCK,I2S0_LRCK,I2S0_DATA
COD_BCK,COD_LRCK,COD_SDOUT
J801
USB
FromCPU
IC2202
EEPROM
IN1_V,IN1_V_PLG
+3.3V
+2.6V
+1.2V
+3.3V
+9V
+3.3V
IC9501
RTL8100C
PCIto Ethernet
IC8452
FLASH
256Mb
Component
HDMI1
SC1501
I2C3
I2C2
(400KHz)
X'tal
25MHz
25MHz
+3.3V
+2.5V
12.288MHz
IC1401
TC7WU04F
Buffer
+3.3V
SIF
IC9502
EEPROM
IC1502
HDMI-Rx
SII9135A
+3.3V
+1.8V
In1
In0
HDMI_SPDIF
Ethernet
J9501
I2S1_BCK,I2S1_LRCK,I2S1_DATA
I2S_MCK
SPDIFin
X'tal
28.322MHz
IC1402
OP-Amp
IC1406
OP-Amp
IC4601
LVDS_Rx
(FPGA)
LVDSψCMOS
ToUCOM
HDMI_CEC_IN_
+5V
AUDIOD/A out
D-SUB
RGB
INPUT
9
SC2203(MB)
P501(MB)
IC4602
ConfigROM
+3.3V
+2.5V
P4600
Connectorfor
writingFPGA
Data
+2.5V
+1.2V
+9V+9V
SPDIF_OUT_B
I2S0_BCK,I2S0_LRCK,I2S0_DATA
I2S_MCK
INPUT
8
IC1701
TMDS-SW
SII9185A
In1
In0
In2
CVBS/LR
ToUCOM
SC2202(MA)
P1101(MA)
+3.3V
EXT_RST
IN2_Y,IN2_C, IN2_Y_PLG
IN2_L/R
IN2_V,IN2_V_PLG
+5V
P1401(VD)
P201(VD)
Sub_Terminal
IN2_L/R
IN3_L/R
IN3_Y,IN3_CB, IN3_CR, IN3_Y_PLG
IN3_L/R
IN3_V,IN3_V_PLG
Front I/F
IC1303
Buffer
+3.3V
OPT
RX_x8
HDMI5
SC1702
RX_x8
IC1704
EEPROM
HDMI4
SC1701
RX_x8
IC1703
EEPROM
HDMI01_DDCI2C_EN
HDMI20_DDCI2C_EN
HDMI21_DDCI2C_EN
HDMI11_DDCI2C_EN
HDMI10_DDCI2C_EN
IC1501
IC1505
IC1606
IC1602
IC1607
IC1605
+1.8V
+5V
+5V
+5V +5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
IC1706
IC1707
IC1702
IC1705
+3.3V
+1.8V
J2201
J2202
SC2201
J603
J602
D509
J502
J501
I2C0 (100KHz 3.3V)
IC1307
DIT/DIR
AK4683EQ
+5V
+3.3V
OPT_OUT
IC1305
DELAY
TPA5050
IC1306
DELAY
TPA5050
Q1302
3V<->5V
+3.3V
+3.3V
I2C1 (100KHz 5V)
N_HDMIRX_RST
DDC_WE
32.768kHz
DC-out for HDMI
WirelessTransfer Unit
ޣPMޤPOWER˴P9701(12PIN)
RxD,TxD
Power SW,
Power LED
KEY
ޣKMޤP2002(5p)
POW_SW,POW_LED_R,POW_LED_G
PS_ON
BU5V
AC_DET
IC2002
M16C
MonitorMicom
UART
BU+3.3V
Powercircuit
Main
˴A9V
˴5V
˴D3.3V
˴D2.6V
˴D1.2V
I2C
EEPROM_SCL/SDA
IC2004
EEPROM
S24CS08J
AC_DET
I/O
THERMO
A/D
UR15V
BackUp
˴BU+5V
BU+3.3V
I/O
A/D
IC2008
Gate
7WH126FU
WP
ޣKMޤP151 (5p)
RxD,TxD
CEC_TX
CEC_RX_I_UCOM
CEC_RX_O_UCOM
IC2006
Gate
BU+3.3V
BU+3.3V
IC2001
Reset
BU+3.3V
DET_15V,DET_5V
ToHDMI input
BU+3.3V
IC4504
HDMI-Tx
SII9134
+3.3V
+1.8V
HDMIout
SC4501
Fan
FAN_CNT,FAN_ERR
ޣFANޤP9702(3p)
+6V
CEC_RX
CEC_TX_I_UCOM
CEC_TX_O_UCOM
ޣDC-OUTޤP9703(4p)
BU+5V
WirelessTransfer Unit
NET_POW_ON,NET_POW_PLG
AC-IN
I/O
PM_REQ,CBOOTS
N_SRESET
I/O
20MHz
Xtal
20MHz
32.768kHz
Xtal
32.768Hz
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TU-X1U
7 – 1
TUX1U
Service Manual
CHAPTER 7. PRINTED WIRING BOARD ASSEMBLIES
[1] MAIN Unit
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MAIN Unit (Side-A Chip)
LUG2203
R2207
R2209
SC2201
C2223
IC2202
D9501
R9501
C9501
L9501
R9502
J9501
D9502
R9503
L9502
C9506
R9504
C9503
C9504
C9505
R1611
D1615
Q1602R1612 D1602
R1603
D1616
C1605
R1614
D1611
Q1601
Q1604
IC1606
IC1602
R1607R1630
SC1601
IC1601
R1627
C1601
D1613
C1609
R1602
FB1603
C1607
C1603
SG1603
R1604 D1601
SG1609
SG1615
SG1621
SG1604
SG1610
SG1616
R1621
SG1622
D1617
Q1603R1616 D1603
R1601
D1618
C1606
R1615
D1614
Q1608
Q1610
IC1607
IC1605
R1613R1641
SC1602
IC1603
R1637
C1602
D1619
C1612
R1609
FB1605
C1611
C1604
SG1601
SG1607
SG1613
SG1619
SG1602
SG1608
SG1614
SG1620
R1703
D1709
Q1701R1705 D1701
R1702
D1710
C1709
R1714
D1705
Q1703
Q1704
IC1706
IC1702
R1707R1719
SC1701
IC1703
R1712
C1702
D1706
C1704
R1709
FB1701
C1701
C1703
SG1705
SG1709
SG1713
SG1715
SG1706
SG1710
SG1714
SG1716
R1704
D1711
Q1702R1706 D1702
R1701
D1712
C1710
R1715
D1707
Q1707
Q1708
IC1707
IC1705
R1708R1720
SC1702
IC1704
R1713
C1707
D1708
C1706
R1710
FB1702
C1708
C1705
SG1701
SG1703
SG1707
SG1711
SG1702
SG1704
SG1708
SG1712
IC4505
SG4509
R4514
L4504
R4513
SG4511
IC8454
SG4510
R4512
L4503
R4511
SG4508
SG4507
R4510
L4502
R4509
SG4505
SC4501
SG4503
R4508
L4501
R4507
SG4501
IC4502
IC4501
C4546
C4545
C4543
R2220
LUG2206
R2221
IC4506
IC4507
C4638
C4635
C4646
C4637
C4636
C4645
R4614
R4521
R4617R4618
R4613
R4616R4615
IC4601
R4625
IC4504
R4612
R4626
R4623
R4624
R4622
R4621
R4619
R4620
IC1701
C8189
L1701
L1702
L1703
L1704
C8186
C8156
L1604
L1603C8171
L1602
C8166
C8157
L1601
IC1604
TP1633
P9202
C8191
C8190
C8175
R9529
R9508
C8173
X9501
C8172
IC9501
C8174
R9528
IC9502
R9510 R9512R9522
TP2205
SC2203SC2202
TP2206
R8025
R8023
C8221
R8239
R8266
R8197
R8254 R8222
R8265
R8238
R8196
IC8153
R8253 R8221
R8264
R8237
R8195
C8214
C8197
R8031
C8223
C8222
TP8002
R8236
R8263
R8194
R8162
R8105
R8220
R8250
C8144
R8235
R8193
R8161
R8262
C8143
IC8154
R8106
R8160
R8249 R8219
R8261
R8234
R8192
R8184
R8185
R8159
C8205
C8215
R8158
R8157
R8156
R8155
R8154
C8198
C8199
R8182
R8233
R8191
R8260
R8183
R8153
R8218
R8248
R8232
R8190
R8259
IC8151
R8152
R8108
R8247 R8217
C8145
R8189
R8258
R8151
R8231
R8107
C8146
C8206 C8200
C8207 C8208
R8230
R8188
R8257
L4612
L4608
L4611
L4602
R8246 R8216
R8269
R8268
R8187
L4609
IC8152
R8245 R8215
L4610
R8186
R8255
R8228
C8209
R4681
IC4602
P4600
IC4603
C1504
R2201
R2202
KOU1
KAME1
LUG2201
KAME2
P9702P9703
L9701
IC9701
C9703
D9707
C1521C1517
C9707
C9715
IC9603
R1509
L9604
R1530
TP1501
C1563
R1517
IC1502
R1518
X1501
C1564
R1528
R8035
R1531R1532
R1529
TP8051
TP8015
R8101
TP8048
TP8011
C8140
TP8012
TP8014
R8055
R8057
TP8044
R8020
R8147
R8102
TP8045
TP8013
C8139
C8142
C8111
R8113
R8127
R8126
R8128
R8006
R8103
R8145
R8143
R8022
R8146
R8139
C8141
R8104
R8033
C8939
C8937
R8053
C8938
C8936
TP8052
C8927
C8926R8044
C8925R8043
R8012
C8931
C8928R8045
IC8001
C8929R8046
C8930R8047
C8934R8050
C8933R8049
C8932R8048
C8935
R8058C8126R8054
R8056C8125R8052
R8094
R8021
C2237
L2205C2235
R8019
C2239
C2240
L2206C2236
R8003
C2241
L2207
R8011
R8089
R8086
R8087
R8085
C8134
R8088
C2238
L8001
FL8001
TP8055
C2229
L2204
R8120
R8904
R8130
TP8050
X8001
TP8047
R8116
R8902
R8906
TP8016
C8135C8136
D8002
R8082
R8135
R8005
R8008
TP8049
R8095R8099
R8083
R8098
R8140
R8017
R8015
R8016
R8907
C8086
TP9303
TP9302
IC8002
VER1
R2210
R2211
P1401
LUG2204
P9001
C9005
R9034R9035
SC9201
Q2217
Q2218
Q2219
R2337
R2343
R2338
R2344
R2339
R2345
R2340
R2341
R2342
C1401
R1401
X1401
IC1401
R1402
C1404
IC8452
P9301
TP9301
IC2006
IC2003
IC2001
X2002
R2010
R2009
TP2029
R2034
TP2018
TP2011
R2008
R2058
R2035
R2031
IC2004R2036
IC2008
TP2037TP2005
TP2004
IC2002
P2001
TP2008
D2003
TP2031
TP2030
R1329
R1328
R2012
C1312
C1315
R2039
R1316
C1325
R1315
IC1307
C1322
IC1303
Q1302
C1303
L9602
L9641
L9601
Q9602
IC9602
IC9641
D9641
IC9601
L9603
IC9704
IC9605
P9701
P2003
R2212
P2002
LUG2205
R2213
C2029
C2028
C2027
FB2003
FB2001
FB2002
FB2005
FB2004
D1501
R1503
D1506
Q1501
R1502
D1507
R1501
R1505
D1504
Q1502 Q1505
C1505
R1510
R1516R1508
IC1504
IC1505
IC1501
C1533
R1513
D1505
IC1301
SC1501
FB1503
R1507
C1532
SG1501
C1501
C1531
SG1503
SG1505
SG1507
SG1502
SG1504
SG1506
SG1508
L2218
IC9002
IC9003
C9001
IC9004
R9013
TP2003
TP2015
TP2014
TH2001
R2043
R2045
R2042
R2053
C2011
X2001
R2054
R2023
C2019
IC2005
R8027
R8028
C8108
IC8003
C8110
C8085
IC1403
SG8002
J8001
SG8001
R1403
R1404
FL1401
S2001
R2206
R2203
LUG2202
J2201J2202
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MAIN Unit (Side-B)
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C
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MAIN Unit (Side-B Chip)
TL4501
C4501
D4501
R4506
TL4504
TL4502
TL4506
C4505
TL4503
TL4511
C4502
TL4507
SG4512
TL4510
TL4509
SG4506
SG4504
TL4505
FB4506
TL8455
C8461
C4503
FB4505
TL8454
R8475
R8474
C4534
IC4503
R4525
C4523
C8462
R4526
C4519R4519
C8460
C4515
R4518
C4539
R4524
C4504
C4536
R4517
R4523
C4537
C4514
SG4502
C4517C4535
R4522R4520
C4538
TL1705
R4504
C4542
TL1710
R4516
TL1708
R1718
TL1709
TL1712
R1717
Q1706
R1733
R1734
TL1703
R1732
R1735
R1739
TL1707
R1738
TL1704
R1711
TL1706
TL1711
R1716
Q1705
T1607
R1618
R1667
TL1615
R1608
R1610
TL1613
R1632
R1662
R1688
R1666
R1665
R1640
TL1614
R1663
TL1618
Q1606
R1631
Q1620
TL1604
Q1619
R9014
TL1611
R1628
TL1606
R1629
TL1609
TL1616
R1617
Q1605
TL9502
TL9503
TL9501
R9530
C9507
C9502
R2239
C2218
R2243
R2237
C2217
Q2213
R2244
TL2297
R2249
TL2294
TL2296
R2317
C2224
C2228
D2205Q2210
R2262
R2260
C2261
TL2290
D2211
D2210
TL2295
TL2293
R2253R2256
C2227
R2261
R2259
FB2208
R2240
C2220
R2245
C2219
R2246
R2250
TL2264
D2201
C2225
L2202
D2206Q2211
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TL2263
R2254R2257
FB2203
TL2262
R2241
C2222
R2247
C2221
FB2204
R2248
TL2260
FB2205R2251
C2226
C2269
TL2261
C2213
R2226
R2229
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D2202
FB2206
TL2292
C2215
TL2258
IC2201
C2214
R2227
R2230
R2255R2258
FB2207
R2305
R2304
D2203
R2233R2242
TL2231
R2234
R2252
R2238
TL2278
TL2276
TL2279
TL2277
TL2257
TL2255
TL2253
TL2251
TL2275
TL2273
TL2271
TL2269
TL2267
TL2265
TL2250
C2207
TL2274
TL2272
TL2270
TL2266
TL2259
TL2268
TL2256
TL2254
TL2252
C2211
C2209
L2201
R2236
TL2201
C2212
C2264C2267
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C2234
L2208
R2266
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R2308
L2213
C2266
R2312
L2214
C2273
R2319
TL2203
C2208
TL2212
TL2207
R2321
C2233
C2210
L2203
R2264
R2269
C2263
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C2271
C2268
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L2212
C2265
C2278
R2316
L2215
C2274
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R2320
TL2208
R9321
R9320
R9322
R9317
R9302
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R9516
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R9526
C9514
C9513
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R9525
C8152
R9527
R9523
R9531
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FB9502
R9509
C9523
C9518C9519
C9508
C9510
C9516
R9532
R9520
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R9517
TL9307
C9524
R9533
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R9519
R9518
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TL9308
R9313
R9211
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TL9207
R9202
TL9208
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TL9221
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TL9204
TL9222
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TL9205
TL9223
R9204
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TL9239
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TL9241
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R1669
R1673
R1671
C1621
C8219
R8242
C8211
R1634
R1633
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R8244
C8212
C1634C1638C1640
C1642
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R8241
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C1680
C1644
C8220
C1646
C8194
R8271
R8243
C1645
C8213
C1622
C1623
TL8152
R8227
C8195
R8270
C1652
R1683
R1677
R1676
R1684
C8203
C1624
C1625
IC8155
FB1607
R8240
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C1673
C1626
C1627
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C1629
C1648
C1647
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C1628
TL9605
C1630
R1606
R1605
C1633
C1632
C1631
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R1670
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R1675
R1625
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R1680
R1679
R1681
R1682
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R1759
R1758
R1760
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R1748
C1742
R1747
C1743
R1757
R1741
C1745
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R1744
R1743
R1745
R1746
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R1740
R1736
C1738
C1739
C1741
R1742
C1737
C1736
C1735
C1733
C1734
R8225
C1732
C1728
C1730
C1740
FB1704
C1731
C1729
C1713
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C1726
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C1721
R1731
R1727
TL1702
R1723
R1726
R1725
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C4513
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R4608
R4607
R4606
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C4526
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C4522
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C4610
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R2314
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TL2247
TL2245
TL2243
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TL2237
TL2235
TL2233
TL2230
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R9007
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R9003
TL2229
TL2232
TL2227
C2246
TL2248
TL2246
TL2244
TL2242
TL2240
TL2238
TL2236
TL2234
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TL1412
TL1410
TL1408
TL1406
TL1404
TL1402
TL1415
TL1413
TL1411
TL1409
TL1407
TL1405
TL1403
TL1401
R1340
C1307
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Q1311Q1310
R1344
R1345
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C1309
R1343
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TL9303
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R8010
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R9324
R8905
TL8036
C8081
R8096
C8070
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R8097
R8093
C8079
C8103
C8096
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C8112
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TL9304
R8114
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C8114
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TL9305
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C8077
C8074
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R8065
R8004
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C8054
R8059
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R8032
R8030
C8056
C8046
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C8102
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TL8043
C8904
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C8915
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C8100
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D2204
TL2220
R2332
TL2221
FB2210
C2204
Q2204
R2214
R2215
R2232
C2230
R2204
L2209
R2224
C2254
C2242
TL2222
C2248R2267
TL2204
D1310
R1337
C1314
D1311
R1338
D1307
Q1309
R1335
R1301
C1301
R1520
TL1508
TL1305
TL1502
R1514
D1302
TL1509
R1324
R1524
Q1504
R1305
R1307
R1306
TL1507
TL1301
TL1501
IC1302
C1308
TL1306
D2004
D2002
D2001
TL2016
TL2004
TL2002
TL2005
TL2003
Page 59
TU-X1U
7 – 5
[2] TERMINAL Unit
1
23
1097654
8
J
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B
C
D
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F
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131119181615141217
TERMINAL Unit (Side-A)
Page 60
TU-X1U
7 – 6
1
23
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8
J
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C
D
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F
G
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131119181615141217
TERMINAL Unit (Side-A Chip)
LUG502
TU1101
FB1101
FB1102
R1101
R1102
C1101
C1102
R1112
R519
R1108
FB510
R551
R550
Q507
C525
D506
J502C523
R547 R555 R553
R520
C1103
D507
C517
R549
R548
C524
Q506
FB511
C522R552
D508
R546 R554
R539
R538
C518
R521
Q504
FB506C515R542
D504
R536 R544
R510
R525
R524
C508
FB503
Q501
R504C501R530
D503
R517 R533
FB509
R541
R540
C521
Q505
R516
C516
D505
R537 R545
R503
R509
R543
R515
R514 R513 C511
C513
FB508 C512
J501
R527
R526
FB502
Q502
R502C502
D502
R518 R534
R531
FB505 R507 C506
R508 C507
R512 R511 C509
C514
FB507 C510
R529
R528
FB501
Q503
R501C503
D501
R523 R535
R532
FB504 R505 C504
R506 C505
R522
D509L501
LUG504
C519
C520
P501
C1112
Q1102
R1120R1121
R1118
Q1101
Q1103
R1105
R1106
R1122
R1119
R1115
R1113
C1110
R1111
R1104
R1117
R1114
C1107
R1116
C1104
R1103
R1110
R1109
R1107
C1108
C1109
C1111
LUG501
KAME1
KAME2
1
P1101
LUG503
Page 61
TU-X1U
7 – 7
[3] SUB TERMINAL Unit
1
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8
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131119181615141217
SUB TERMINAL Unit (Side-A)
Page 62
TU-X1U
7 – 8
1
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131119181615141217
SUB TERMINAL Unit (Side-A Chip)
LUG602
P601
C613 R618
C612
R616
FB609
J603
C614 R617
FB608
C611
R614
C610 R613
C609 R615
C608
R612
R611
FB607
J602
C607
R610
R609
FB606
R608
C604
C606
R607
R606
FB605
C605
J601
R605
C601
C603
R604
R603
FB604
C602
D602
FB601 R601
SC601
FB602 R602
D601
FB603
KAME1
KAME2
1
LUG604
Page 63
TU-X1U
7 – 9
[4] KEY Unit
1
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131119181615141217
KEY Unit (Side-A)KEY Unit (Side-A Chip)
1
S201
TL202
D201
TL203
R202
P201
R203
TL204
R205
TL201
R208
TL206
TL205
R210
Q202
D202
R206
R209
Q204
R204
R207
Q201
Q203
R211
R201
Page 64
TU-X1U
8 – 1
TUX1U
Service Manual
CHAPTER 8. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIAGRAM
1. VOLTAGE MEASUREMENT CONDITION:
1) The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 120V. Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.
2. INDICATION OF RESISTOR & CAPACITOR:
RESISTOR
1) The unit of resistance "Ω" is omitted.
(K=kΩ=1000Ω, M=MΩ).
2) All resistors are ± 5%, unless otherwise noted.
(K= ± 10%, F= ± 1%, D= ± 0.5%)
3) All resistors are 1/16W, unless otherwise noted.
CAPACITOR
1) All capacitors are µF, unless otherwise noted.
(P=pF=µµF).
2) All capacitors are 50V, unless otherwise noted.
CAUTION:
This circuit diagram is original one, therefore there may be a slight
difference from yours.
SAFETY NOTES:
1) DISCONNECT THE AC PLUG FROM THE AC OUTLET
BEFORE REPLACING PARTS.
2) SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS
OPERATING.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH " " () ARE IMPORTANT
FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO
REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET.
AVIS DE SECURITE IMPORTANT:
LES PIECES MARQUEES " " () SONT IMPORTANTES POUR MAINTENIR LA SECURITE DE L'APPAREIL.
NE REMPLACER CES PIEDES QUE PAR DES PIECES DONT LE
NUMERO EST SPECIFIE POUR MAINTENIR LA SECURITE ET
PROTEGER LE BON FONCTIONNEMENT DE L'APPAREIL.
Page 65
TU-X1U
8 – 2
[2] SCHEMATIC DIAGRAM
1
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MAIN Unit (1/18)
Page 66
TU-X1U
8 – 3
1
23
1097654
8
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131119181615141217
MAIN Unit (2/18)
Page 67
TU-X1U
8 – 4
1
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1097654
8
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131119181615141217
MAIN Unit (3/18)
Page 68
TU-X1U
8 – 5
1
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8
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131119181615141217
MAIN Unit (4/18)
Page 69
TU-X1U
8 – 6
1
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8
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131119181615141217
MAIN Unit (5/18)
Page 70
TU-X1U
8 – 7
1
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8
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131119181615141217
MAIN Unit (6/18)
Page 71
TU-X1U
8 – 8
1
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8
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F
G
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131119181615141217
MAIN Unit (7/18)
Page 72
TU-X1U
8 – 9
1
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8
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F
G
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131119181615141217
MAIN Unit (8/18)
Page 73
TU-X1U
8 – 10
1
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8
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F
G
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131119181615141217
MAIN Unit (9/18)
Page 74
TU-X1U
8 – 11
1
23
1097654
8
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C
D
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F
G
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131119181615141217
MAIN Unit (10/18)
Page 75
TU-X1U
8 – 12
1
23
1097654
8
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F
G
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131119181615141217
MAIN Unit (11/18)
Page 76
TU-X1U
8 – 13
1
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1097654
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C
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F
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131119181615141217
MAIN Unit (12/18)
Page 77
TU-X1U
8 – 14
1
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131119181615141217
MAIN Unit (13/18)
Page 78
TU-X1U
8 – 15
1
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1097654
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131119181615141217
MAIN Unit (14/18)
Page 79
TU-X1U
8 – 16
1
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1097654
8
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131119181615141217
MAIN Unit (15/18)
Page 80
TU-X1U
8 – 17
1
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131119181615141217
MAIN Unit (16/18)
Page 81
TU-X1U
8 – 18
1
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131119181615141217
MAIN Unit (17/18)
Page 82
TU-X1U
8 – 19
1
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131119181615141217
MAIN Unit (18/18)
Page 83
TU-X1U
8 – 20
1
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1097654
8
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C
D
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F
G
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131119181615141217
KEY Unit
Page 84
TU-X1U
8 – 21
1
23
1097654
8
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C
D
E
F
G
H
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131119181615141217
TERMINAL Unit (1/2)
Page 85
TU-X1U
8 – 22
1
23
1097654
8
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C
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F
G
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131119181615141217
TERMINAL Unit (2/2)
Page 86
TU-X1U
8 – 23
1
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1097654
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131119181615141217
SUB TERMINAL Unit
Page 87
PartsGuide
TU-X1U
PARTS GUIDE
No. S98P7TUX1U///
LCD COLOR TELEVISION
(AVC SYSTEM)
[1]PRINTED WIRING BOARD
ASSEMBLIES
[2]PRINTED WIRING BOARD
ASSEMBLIES
(UNIT REPLACEMENT ITEM)
[3]DUNTKE593FE02(KEY Unit)
[4]DUNTKE760FE01(MAIN Unit)
CONTENTS
[10] SERVICE JIGS
MODEL
[6]DUNTKE837FE01
(SUB TERMINAL Unit)
[7]CABINET PARTS
[8]SUPPLIED ACCESSORIES
[9]PACKING PARTS
TU-X1U
[5]DUNTKE761FE01(TERMINAL Unit)
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
Page 88
TU-X1U
NO.PARTS CODE
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
[1] PRINTED WIRING BOARD ASSEMBLIES
N DUNTKE593FE02AKNJKEY Unit
N DUNTKE760FE01CHNJMAIN Unit
N DUNTKE761FE01BDNJTERMINAL Unit
N DUNTKE837FE01AXNJSUB TERMINAL Unit