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
LC-60H20T/LC-70H20T
i
SAFETY PRECAUTION
IMPORTANT SERVICE PRECAUTION
IMPORTANT SERVICE SAFETY PRECAUTION
WARNING
1. For continued safety, no modification of any circuit should be
attempted.
2. Disconnect AC power before servicing.
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 110-240 volt AC outlet.
• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15 F 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.
• Use an AC voltmeter having
with 5000 ohm per volt, or higher, sen-
sitivity 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 0.74 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.
Many electrical and mechanical parts in LCD colour 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.
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
DVM
AC SCALE
1.5k ohm
10W
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
0.15µF
TEST PROBE
Page 3
LC-60H20T/LC-70H20T
ii
PRECAUTIONS FOR USING LEAD-FREE SOLDER
PRECAUTIONSFORUSINGLEAD-FREESOLDER
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 oflead-free solder.
Example:
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 oflead-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 oflead-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 ofit.
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.
Lead-free wire solder for servicing
Indicates lead-free solder of tin, silver and copper.Indicates lead-free solder of tin, silver and copper.
(PC) terminals can both use the same audio input terminal.
• As a part of policy of continuous improvement, SHARP reserves the right to make design and specifi cation changes for
product improvement without prior notice. The performance specifi cation fi gures indicated are nominal values of production
units. There may be some deviations from these values in individual units.
CAUTION
• Installing the Liquid Crystal Television requires special skill that should only be performed by qualifi ed service personnel.
Customers should not attempt to do the work themselves. SHARP bears no responsibility for improper mounting or mounting
that results in accident or injury.
• Carefully read the instructions that come with the bracket before beginning work.
Page 6
LC-60H20T/LC-70H20T
2 – 1
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL
Attaching the stand
• Before attaching (or detaching) the stand, unplug the AC cord from the AC outlet.
• Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being damaged.
1
Confi rm the screws supplied with the TV.
(Six long screws and four short screws)
2
Insert the support angle into the stand base slot holes. (
1
)
• Please make sure left support angle into the left stand base and right support angle into the right stand base
(left side part engraved “L”, right side part engraved “R”).
3
Push the support angle follow the direction of the arrow mark on the stand base.
Push
Push the support angle follow
the direction of the arrow mark
4
For easily, user can use polystyrene foam as a jig to hold the stand base when fi xing by using the long
screws. (
2
)
2
Example for left side
2
5
Insert the stand into the openings on the bottom of the TV. (
3
)
6
Insert and tighten four short screws into the holes on the rear of the TV. (
4
)
Soft cushion
OUTPU
T
DC
5
V
1
.5A
H
D
MI
4
HDMI
5
U
SB
2
DC5V 0
.5A
AU
DI
O IN
D
IGI
T
AL
AUDIO
OUTPU
T
ANALOGU
E
RGB
(
PC
)
ARC
PC
H
DMI
1
INPUT 6
INPUT 7
AUDIO OUT
R
-
AU
DIO -
L
R -
AUDIO -
L
R
-
AUD
I
O
L
V
I
D
E
O/
Y
P
B
(C
B
)
P
R
(C
R
)
C
OMPO
NEN
T/
A
V
INPU
T
VIDEO
RS-232C IOIOI
US
B
1
D
C
5V
1
.
5A
(D
C5V
90
0
m
A
)
A
UD
I
O
(
L
/
R)
C
.I
.
M
H
L
HDMI 2
HDM
I 3
OUTPUT
3
4
NOTE
• To detach the stand, perform the steps in reverse order.
• Refer “Building the Work Table” in carton box to assemble the TV.
CAUTION
• Do not attach or detach the stand without holding it.
Doing so can cause the stand to fall, resulting in serious personal injuries as well as damage to the stand.
• The illustrations used throughout this manual are based on LC-60LE660X.
Polystyrene foam
Page 7
LC-60H20T/LC-70H20T
2 – 2
TV (Front)
RGB sensorRemote control sensorMotion sensorPower indicator
COCORO EYE LED
COCORO EYE LED
Power On mode (Power indicator lighted)
Standby mode
(Lighted)
Smart Power
Control
Auto Colour
Adjustment
Assist Light
mode
Optical
Picture
Control
Normal
ON
Green*
1
WhiteWhiteWhiteBlue
Red
White (ASL is On)*
2
OFF
deRDEL oN
NOTE
*1 “SMART POWER CONTROL” IS PRIORITY. Power indicator will display Green even if other setting also turn On at the same
time.
*
2
If the “Assist Light mode” is turned On, Power indicator will display weak White during standby mode.
• The illustrations used throughout this manual are based on LC-60H20T.
i. Enter service mode key and go to VCOM/TEST PATTERN Page
ii. Press “Enter” key (at VCOM)
iii. Adjust the flicker effect by pressing “VOL +/-“ of RC key
iv. Press “Enter” key after get the best value
2. SOFTWARE PACKAGE
i) Main Software
egakcaP erawtfoS ledoM
LC-60H20T
LC-70H20T
Wisteria_Taiwan_Pack15_vXXX.bin
Main Software Filename : XXX is Software version
Please manually change the panel inch setting (60” or 70”) according to the model.
If any changes of software, will be informed by MARUHEN.
ii) Net Software
krameR egakcaP erawtfoS ledoM
LC-60H20T
LC-70H20T
wisteria660_netboot_vXXXX.bin For Bootloader ( write at ISP Flash)
wisteria660_net_vXXXX.bin Net Software ( write at NAND Flash)
Net Software Filename : XXXX is Software version
iii) Sub Software
egakcaP erawtfoS ledoM
LC-60H20T
LC-70H20T
Wisteria660_Sub_VXXX.production.hex
Sub Software Filename : XXX is Software version
Page 16
LC-60H20T/LC-70H20T
5 – 3
3. T-CON ROM DATA INPUT (T-CON PWB : QPWBXG477WJ**)
ERUDECORP NOITIDNOC METI
1 T-CON Data
Input
(T-CON PWB)
Checker
adjustment
Full version
confirmation
1. At checker, connect software jig at CN5801 (TL5801~5807).
2. Input voltage at P4804 (TL4839~TL4880) and ROM start to
input data.
3. Power OFF after finish data input.
[ Caution item ]
If some error happened, ROM data is not written in at all.
Note: Please refer to below for combination of T-Con software
LCD PANEL T-CON UNIT T-CON SOFTWARE
1
R1JE601D3HA10W
(LC-60H20T)
DUNTKG477FMG1
SHARP_71912_FW_(v20140924_60425110)_SPI.bin
2
R1JE695D3HC50W
(LC-70H20T)
DUNTKG477FMG2
SHARP_71912_FW_(v20140924_70425100)_SPI.bin
4. MAC ADDRESS & WMDRM PROGRAMMING
(Key is from Sharp IT department)
One key is for every each unit except the WMDRM key. Please be extra careful in data management so
as NOT to write multiple data. Also, when data writing location parts is broken, please change PWB board
(since the concerned IC is non-exchangeable part).
Note: a) MAC Address is from Sharp IT department
b) WMDRM Key is from SEM Enginering department
5. SIGNAL ADJUSTMENT
A. PICTURE ADJUSTMENT
Confirmation of signal from generator (setting to spec le
vel)
PAL Composite signal 㸸0.7Vp-p s 0.02Vp-p (pedestal to white level)
15K Component signal (50Hz) 㸸Y level 㸸0.7Vp-p s 0.02Vp-p (pedestal to white level)
Pb, Pr level 㸸0.7Vp-p 㸸0.7Vp-p s 0.02Vp-p
33K Component signal 㸸Y level 㸸0.7Vp-p s 0.02Vp-p (pedestal to white level)
Pb, Pr level 㸸0.7Vp-p 㸸0.7Vp-p s 0.02Vp-Com
Page 17
LC-60H20T/LC-70H20T
5 – 4
a) Adjustment Mode
NO. ERUDECORP NOITIDNOC METI
1Adjustment Mode Press the test key at the test remote control
b) Component 15K 50Hz Signal Adjustment (COMP-SD)
NO. ERUDECORP NOITIDNOC METI
1 Setting [Signal]
COMP 15K 50Hz
(576i)
100% Full-field
Colour Bar
[Terminal]
COMPONENT
INPUT 6
࣭Feed the COMPONENT 15K 50Hz (576i) 100% Full-field
Colour Bar signal(100% colour saturation) to
COMPONENT INPUT 3
2 Auto Adjustment Test Mode page 4
(COMP SD)
At the related page, move cursor to [COMP SD ADJ], press
ENTER.
[OK] appears when finished.
c) Component 33K 60Hz Signal Adjustment (COMP-HD)
NO. ERUDECORP NOITIDNOC METI
1Setting [Signal]
COMP 33K 60Hz
(1080i)
100% Full-field
Colour Bar
[Terminal]
COMPONENT
INPUT 6
࣭Feed the COMPONENT 33K 60Hz (1080i) 100% Full-field
Colour Bar signal(100% colour saturation) to
COMPONENT INPUT 3
Page 18
LC-60H20T/LC-70H20T
5 – 5
2Auto Adjustment Test Mode page 5
(COMP HD)
At the related page, move cursor to [COMP HD ADJ], press
ENTER.
[OK] appears when finished.
d) PC (ANALOG RGB) Signal Adjustment (PC-RGB)
NO. ERUDECORP NOITIDNOC METI
1Setting [Signal]
XGA 60Hz
100% Checkered
Pattern
[Terminal]
PC INPUT 8
࣭Feed the XGA 60Hz 100% Checkered pattern signal (100%
colour saturation) to PC INPUT
䈜Please make sure SYNC is OFF.
2Auto Adjustment Test Mode page 6
(PC-RGB)
At the related page, move cursor to [RGB ADJ], press
ENTER.
[OK] appears when finished.
Page 19
LC-60H20T/LC-70H20T
5 – 6
MGMB**** RB to the reference value of point 1.
(18) Adjusted value is writing at [command]
MSET0003
(19) Set the G of point Max. to the default value
(4080 x G value of point 2 / R2). Set the R,B
Max. value [G
max
– G value of point 2 + (R,B
value of point 2)
(20) Calculate the slope R2
slope,
G2
slope,
B2
slope
between MAX and Point2.
R2
slope =
(R
max
- R
high
)/(4080-3664)
(21) Calculate the correction value
پR
high, پGhigh, پBhigh.
پR
high = R2slope X
(3840-3664)
(22)
Set the reference value R,G,B of point 2
(R2䇻)=R2+پR
high
(23)
Calculate the slope R1
slope,
G1
slope,
B1
slope
between Point2 and Point1.
R1
slope =
(R
high
- R
low
)/(3664-480)
(24)
Calculate the correction value پR
low,
پG
low, پBlow.
پR
low = R1slope X
(538-480)
(25)
Set the reference value R,G,B of point 1
(R1䇻)=R1+پR
low
(26) Shut down the AC power.
䈜Initial value at RGB 2 point : 3664䈜Initial value at RGB 1 point : 480
[Adjustment value]
ۼTeaching set send by engineering dept is set as
reference.
[Reference values for adjustment reference]
Equipment : Luminance meter [Minolta CA-210]
Level
Spec
Data
Adj. Spec.
Inspection
Spec.
Point
2 ref.
values
229
x=0.2685
y=0.267
0.0010 0.0020
Point
1 ref.
values
30
x=0.2685
y=0.267
0.0045 0.0090
Ref. : For inspection, set the LCD TV as below.
AV MODE : [DYNAMIC] (Reset)
Aging Time : Minimum 30 minutes
RESULT
+
-
+
-
+
-
+
-
Page 20
LC-60H20T/LC-70H20T
5 – 7
6. FACTORY SETTING
AC power is plug off after shipment setting is done.
Caution
: Do not plug on again after shipment setting is done. If do, please re-do the shipment setting. Do not off
with remote control.
Model Name Factory Setting
Key Name
Remote Control
Code
S-System Setting OSD Language
Setting
A3LCRH20T
A3LCTH20T
T-Setting 100000111111110 M
TRADITIONAL
CHINESE/
ENGLISH
ITEM ERUDECORP NOITIDNOC
Factory setting AC power off to exit
the factory setting.
1. Setting is done with test remote control.
2. Press the ‘Factory Setting’ key on the remote control continuously.
3. When Green background appears on screen and ‘K’ mark
disappears, setting is completed.
The followings are initialised to factory setting:
1) User setting
2) Channel data (e.g. broadcast frequencies)
3) Manufacturer’s option settings
4) Password data
5) Setting values are set based on model destination
Page 21
LC-60H20T/LC-70H20T
5 – 8
[2] USB CLONE SPECIFICATIONS
[3] USB CLONE SPECIFICATIONS
[2] USB Clone (Smart Loader)
1. Description
The Smart Loader is a function implemented in the service software to easily replicate the user settings of one TV into another.
These settings include (but not restricted to): picture and audio, turning set-up, language and country selection, PIN, child locked programs etc.
Factory adjustments are not copied as they are different for every TV.
The Smart Loader makes possible the user data to be stored in a memory device connected to the USB terminal of the TV that is used as reference
and later load those data into other TVs by using their respective USB terminal.
2. How it works
1. Enter USB clone menu (Smart Loader)
i) Press panel key [INPUT] and [VOL+] and AC on, it will go to password entry OSD
ii) Enter digit “369” then it will go to Smart Loader Menu
2. Smart Loader function
i) SMLD Store
• To copy all related data fro
m TV -> USB and put under a fixed filename “SHPSMLD.bin” (8kB).
ii) SMLD Restore
• To restore the related data from USB -> TV.
iii) SMLD Store and Restore execution
• To execute SMLD Store or SMLD Restore, highlight at selected item and press Enter.
• After cloning process is done, “OK” is displayed.
If cloning process is not finished due to error (e.g. no pendrive detected), “NG” is displayed.
3. Exit USB Clone menu (Smart Loader)
i) To exit Smart Loader menu, plug off AC Cord.
SMLD StoreSMLD Restore
2nd AQUOS TVUSB1st AQUOS TV
Page 22
LC-60H20T/LC-70H20T
5 – 9
[4] PUBLIC MODE SETTING
[5] PUBLIC MODE SETTING
[3] PUBLIC MODE SETTING PROCEDURE
1. How to start Public Mode
• There are the following two ways to get the public mode setup screen displayed.
1) Press the “INPUT” and “VOL (+)” keys on the set at once and turn on the power.
2) Get the password input screen displayed.
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.
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.
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 by
itself.
• Turn off the powe
r 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.)
Procedure
• The input starts with the leftmost digit.
• Use the numeric keys [1] thru [9] and [10/0] 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.
Page 23
LC-60H20T/LC-70H20T
5 – 10
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 the “cursor RIGHT/LEFT” key (remote controller) and “VOL (+)/(‒)” key (remote controller and set).
5. On Setting Items
1. POWER ON FIXED
2. MAX V OLUME
SelectionVariable/Fixed
DefaultVariable
ExplanationWhen set to “Fixed”, the power cannot be turned off with the power key on the remote control or main unit, and the image
reception state is kept (it does not enter the standby state).
The power can be turned off by shutting off power supply from AC.
Limit in setting• Power key on the main unit/
remote control power supply key
• OFF timer/ON timer
ExceptionNone
Remarks• Selection of “FIXED” assumes use of STB, etc.
• When set to “Variable”, if the main power switch is set to off, the power is turned off after a wait of 1 second.
(Push-push switch only)
• Display ON/OFF in the hotel menu is controlled by the adjustment process “HOTEL POWERFIX”.
• When the power button is operated, a caution is displayed (it times out in 5 seconds).
(For the caution, refer to the power on fixed message sheet.)
* The caution is not displayed when in the adjustment process, hotel menu, default setting, MCL operation and auto preset
(Ch search operation).
The OSD display including the menu and this caution have priority over all others.
When “OSD display” (described below) is set to “Variable”, this caution is displayed as a special case.
SelectionAdjustment from 1 to 60 (no loop)
Def
ault060
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.
• The maximum sound volume for ON-timer (Wake up timer) is limited also to the preset value.
Exception• In the item “VOLUME” of adjustment process, the sound volume can be set freely irrespective of this setting.
Remarks• Setting is valid only for the speakers of the unit. (As for the headphone, the sound volume can be set up to 60 irrespective
of the limit.)
• In line output (sound volume variable), the sound volume can be adjusted from -60 to 0 irrespective of pre-adjusted value.
• When the sound volume is set higher than the MAX setting by the adjusting process or headphone, the sound volume con-
trol operation is prohibited for turn-up and the sound volume should be tu
rned down to MAX in this state.
<Example ofimage>
Page 24
LC-60H20T/LC-70H20T
5 – 11
3. VOLUME FIXED
4. VOLUME FIXED LEVEL
5. RC BUTTON
6. PANEL BUTTON
7. MENU BUTTON
SelectionSelection between “Variable”,''Fixed'' and ''AC/RC CTRL'' ( loop provided ).
DefaultVariable
ExplanationSound volume is fixed and made invariable.
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
impossible. (Basically, the menu is not displayed.)
• The following keys become invalid:
1) Sound volume Up/Down (VOL +/-) [for both remote control and the unit]
2) Mute (MUTE)
Exception• In the item “VOLUME” of adjustment process, the sound volume can be set freely irrespective of this setting.
Remarks• In “Variable” setting, the sound volume had been conventionally set at 1 but this operation has been abolished (and follows
the last memory).
•
The sound volume for the ON
-time is not set at 1 either and the sound volume set value of the ON-timer before the hotel
mode is executed.
• Setting is valid only for the speakers of the unit. (As for the headphone, the sound volume can be set up to 60 irrespective
of the limit.)
• In line output (sound volume variable), the sound volume can be adjusted from -60 to 0 irrespective of pre-adjusted value.
• As for sound volume fixing and sound volume MAX level, the sound volume fixing has priority.
• Once the sound volume has been changed by adjustment process or headphone, it should be set back to the sound volume
preset by sound volume fixing level when the adjustment process ends or when the headphone is removed.
SelectionAdjustment from 1 to 60 (no loop)
Default020
ExplanationThe sound volume to be fixed by “Volume fixed” is determined.
Limit in settingNone
ExceptionNone
Rem
arksSetting is valid only when “Volume fixed” is selected for “fixed”.
This must be confirmed actually by changing also the sound volume in accordance with setting.
SelectionSelection between “Resp ond”and "No respond"( loop provide ).
DefaultRespond
ExplanationAcceptability of keys by remote control is limited or reception of keys can be prohibited.
Limit in setting
1)
In “No respond” setting, all the keys (including the power key) are not accepted.
Exception• Adjustment process, factory setting, inspection process and hotel only keys are valid irrespective of setting.
• All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
Remarks
SelectionSelection between “Respond” and “No respond” (loop provide)
DefaultRespond
ExplanationAll the operations by keys (except the power key) of the unit can be invalidated.
Limit in setting
Exception• Inspection mode and hotel menu mode can be started irrespective of setting.
• All the keys ca
n be used in adjustment process, inspection mode and hotel menu irrespective of setting.
Remarks
SelectionSelection between “Respond” and “No respond” (loop provide)
DefaultRespond
ExplanationIn “No respond” setting, the menu operation by the menu key of the remote control and the menu key of the unit is invalidated.
Limit in setting• ON-timer (Wakeup Timer) is turned OFF.
• The following keys become invalid.
Wake-up timer and clock setting keys and all of the direct change keys to menu display
Exception• Inspection mode and hotel menu mode can be started irrespective of setting.
• All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
Remarks
•
In "AC/RC CTRL" the tv stars at the volume specified in the volume fixed level.The volume can be adjust by remote control
but after OFF.ON ,it will return to the volume fixed level.
Page 25
LC-60H20T/LC-70H20T
5 – 12
8. OSD DISPLAY
9. BLUE SCREEN
10.INPUT MODE START
11.INPUT MODE FIXED
SelectionSelection between “Yes”, “No” (loop provide)
DefaultYes
ExplanationThe following OSD displays are made ineffective.
Displays of menu group, channel call, sound volume bar and direct key call
Limit in setting• Set time of the OFF-timer (SLEEP TIMER) is cleared.
• Setting of the no-signal power-OFF (AUTO POWER OFF) is cleared to “OFF”.
• Setting of the no-operation power-OFF is cleared to “OFF”.
• Keys falling under any of the following items become invalid.
1) Appearance of screen changes and the sound changes.
2) Personal functions which are hard to restore.
Ex.) Screen display, menu, OFF-timer, ON-timer, AV MODE, screen size switching, clock setting, treble emphasis, AUDIO
ONLY, sound changeover, LANGUAGE, CLOSED CAPTION
Others• Simple input switching is generated. Those which are restored soon after leaving as they are and
may be requested for
change by customer are not prohibited.
Ex.) Brightness sensor (BACKLIGHT) and PIC. FLIP
Exception• Such a caution which is displayed independently is displayed asitis.
Non-responding signal caution, TELE TEXT caution and power-ON fixing caution
SelectionSelection between “Yes”, “No”
DefaultNo
ExplanationWhen no signal inputs, selecting the background color.
Selected to “Yes”---Blue screen
Selected to “No”---No Blue screen
SelectionSelection between “Normal”, “ATV (CH~)'HDMI 1,HDMI 2,HDMI 3,COMPONENT,AV,PC,MEDIA (loop provide)
DefaultNormal
ExplanationIn power-ON, the input source to be started or channel can be set.
(In standard mode, the operation follows the last memory.)
About options• All the input sources in the model are made selectable.
• When the input/output switchable input source is selected and the input source is set to output, the setting ofinput/output
switching is changed to input at the execution of hotel menu. In addition, the input/output switching
by menu is prohibited.
• In TV mode, the display of all channels is stopped and it is treated as an input source. At this time, the channel to be set follows the last memory and the content of the last memory is included in the notation by options. Ex.) TV (CH2), TV (CH4)
etc.
• The order of appearance of options in the hotel menu should agree with the order of toggles by input switching key.
Limit in setting• The display of channel setting menu and the channel setting operation are prohibited (except for MCL).
ExceptionNone
Remarks• In setting at “Normal”, the setting of “Input mode fixed” is changed to “Variable” and selection should be prohibited.
SelectionSelection between “Variable” and “Fixed” (loop provide)
Default‒ (Variable)
ExplanationThe input mode is fixed at the input source or the channel set at the “Input mode start” in 10 and other input sources and chan-
nels can be made non-selectable
.
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
switching and input switching are prohibited thereafter.
• 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.
ExceptionNone
Remarks• In the following case, setting is cancelled and mode is changed to “Variable”.
When the setting of “Input mode start” is set to “Standard (Normal)”
Page 26
LC-60H20T/LC-70H20T
5 – 13
12.PRESET CHANNEL PLAN
SelectionSelection between "ON" and "OFF"
DefaultOFF
Explanation[ON] : Display preset channel plan when power on.
[OFF]: Not display preset channel plan. (Default setting)
RemarkWhen hotel mode is ON and PRESET CHANNEL PLAN is [ON],
press power ON (Panel or R/C key), it displays preset channel plan on the screen.
When
user press ENTER key during TV mode ,its shows preset channel plan.
Page 27
LC-60H20T/LC-70H20T
6 – 1
CHAPTER 6. TROUBLESHOOTING
TABLE
[1] TROUBLESHOOTING TABLE
[2] TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE
No power (front LED failure to light up) or no startup (front LED failure to turn from red to blue)
Are the wire harnesses and other cables properly connected in
the set?
NOReconnect the wire harnesses and other cables properly in the
set.
YES
Is there the PSONand PNLPOWsignal input at pins
(10 ) and (12
) of P9602?
NOCheck the
PS-ON signal li ne PNL POWsignal line.
YES
Are the DC/DC converter outputs and the output voltages along
the control lines as specified?
NOCheck the DC/DC converters and the control lines. Replace
defective parts as required.
1) M+5.6V (IC9601)8) BU+3.3V (IC9604)
2) D+1.0V
(IC9612)
3) D+5V (IC9607)
4) BU+5V (D9610)
5) D+3.3V (IC9606)
6)
D+1.5V(IC9608)
7) D+1.15V
(IC9602)
9) D+2.5V (IC9605)
10) M+5.1V(IC9617)
Page 28
LC-60H20T/LC-70H20T
6 – 2
With [RF] signal inputNo video onscreen (1)
No video in the UHF/VHF reception
Is there IF output from the tuner pin(8),(9)of TU1102asspecified? NOCheck TU1102 and its peripheral circuits.
YES
Is there IF input at pin W1 & W2 of IC3301 ?.1033CI&2011UTneewtebtiucricehtkcehCON
YES
NOCheck IC3301 and its peripheral circuit to SC3801
YES
Check LVDS cable, LCD controller (incl. panel) and their peripheral circuits.
With <Video> signal inputNo video onscreen (2)
No external input video onscreen <INPUT 7>
Is INPUT 7 selected on the input select menu screen?NOSelect INPUT 7 on the input select menu screen to pick up the
right input signal.
YES
Is there the video signal input at pin (R2) of IC3301?NOCheck the line between pin (9) of J502 and pin (R2) of IC3301.
YES
NOCheck IC3301 and its peripheral circuits to SC3801
YES
Check LVDS cable, LCD controller (incl. panel) and their peripheral circuits.
Are there the signal output
( P19-P20,R19-R21,T19-T21,V19-V21
W18-W21,Y18-Y21,AA18-AA20)ofIC3301toSC3801?
Are
there
the signal outputs pin ( P19-P20 , R19-R21 ,T19-
T21,U19-U20,V19-V21,W18-W21,Y18-Y21,AA18-AA20 ) of IC3301 to SC3801?
U19-U20
there
Page 29
LC-60H20T/LC-70H20T
6 – 3
With <Component> signal inputNo video onscreen (3)
No external input video onscreen <INPUT 6>
Is INPUT 6 selected on the input select menu screen?NOSelect INPUT 6 on the input select menu screen to pick up the
right input signal.
YES
Are there the Y, Pb and Pr signal inputs at pins (L1), (L3) and
(M1
) of IC 3301 respectively?
NOCheck the line between pins (15)/(17)/(19 )of J502 and pins (L1)/
(L3) /(M1) of IC3301.
YES
NOCheck IC3301 and its peripheral circuitstoSC3801
YES
Check LVDS cable, LCD controller (incl. panel) and their peripheral circuits.
With <HDMI1/HDMI2 / HDMI3/HDMI4/HDMI5>signal inputNo video onscreen (4)
No external input video onscreen <INPUT 5/HDMI1/HDMI2/HDMI3/HDMI4>
YES
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of
P1701 normal?
NOCheck circuit between IC1702 & P1701.
YES
Check speakers and their peripheral circuits.
(30),(31)
of IC1702 normal?
Is the R-ch audio signal output at pin (10
(11), (14) (15),
Is the IF output from the tuner pin(8) & (9)
of TU1102 as specified ?
Page 31
LC-60H20T/LC-70H20T
6 – 5
No audio heard (2)
No external audio heard
<INPUT 7>
Is there the L-ch audio signal input from pin (7) ofinput terminal
J502 to pin (U4) of IC3301?
Is there the R-ch audio signal input from pin (5) ofinput terminal
J502 to pin (V5
)ofI
C3301?
<INPUT 6>
Is there the L-ch audio signal input from pin (13) ofinput terminal
J502 to pin (T6) of IC3301?
Is there the R-ch audio signal input from pin (11) ofinput terminal
J502 to pin (T7) of IC3301?
YES
Is there the I2S signal output at pin ( J19),(J20) of IC3301 ?NOCheck IC3301 and its peripheral circuits.
YES
ON?2071CIfo)6(niptatupnilangisoiduaerehtsICheck connection between IC3301 and IC1702 and its periph-
eral circuits.
YES
Is the L-ch audio signal output at pin(26), (27) ,(30),(31) of
IC1702 normal ?
NOCheck IC1702 and its peripheral circuits.
Is the R-ch audio signal output at pin(10), (11),(14),(15) of
IC1702 norma
l?
YES
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of
P1701 normal?
NOCheck circuit between IC1702 & P1701.
YES
Check speakers and their peripheral circuits.
Page 32
LC-60H20T/LC-70H20T
6 – 6
No audio heard (3)
ON?neercsnoraeppaegamiIMDHehtseoD
YES
.tonronettirwsiDIDEfitikcehCON<morftuptuooiduaoN
YES
Are waveforms input in to the pin(C4,D4/C3,D3/W7,V8)
of IC3301 normally?
NOCheck peripheral circuits IC3301.
YES
ON?2071CIfo)6(niptatupnilangisoiduaerehtsICheck connection between IC3301 and IC1702 and its periph-
eral circuits.
YES
Is the L-ch audio signal output at pin(26), (27) ,(30), (31)NOCheck IC1702 and its peripheral circuits.
of IC1702 normal?
YES
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of
P1702 normal?
NOCheck circuit between IC1702 & P1701.
YES
Check speakers and their peripheral circuits.
of IC1702 normal?
Is the R-ch audio signal output at pin(10),(11),(14),(15)
No HDMI sound heard
(*INPUT1/INPUT2/INPUT3 is digital audio )
Refer to "(HDMI1/HDMI2/HDMI3/HDMI4/HDMI5)
video onescreen (HDMI)"
HDMI1/HDMI2/HDMI3/HDMI4/HDMI5 >
Page 33
LC-60H20T/LC-70H20T
6 – 7
No audio heard (4)
No sound from the HDMI sound input terminal.
(INPUT 1 analog audio)
YES
Is there the L-ch audio signal input from pin (2) of external input
terminal J506 (HDMI AUDIO IN) to pin (U3 ) of IC3301?
Is there the R-ch audio signal input from pin (3) of external input
terminal J506 (HDMI AUDIO IN) to pin (U1 ) of IC3301?
YES
NOCheck peripheral circuits of IC3301.
YES
CON?2071CIfo)6(niptatupnilangisoiduaerehtsIheck connection between IC3301 and IC1702 and its peripheral circuits.
YES
Is the L-ch audio signal outputat pin(26),(27),(30),(31)
NOCheck IC1702 and its peripheral circuits.
of IC1702 normal?
YES
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of
P1701 normal?
NOCheck circuit between IC1702 & P1701.
YES
Check speakers and their peripheral circuits.
of IC1702 normal?
Is the R-ch audio signal output at pin(10),(11),(14),(15)
Are 12S signal output from the pins ( J19 )
,(J20 ) of IC3301 normally
?
Page 34
LC-60H20T/LC-70H20T
7 – 1
CHAPTER 7. SYSTEM BLOCK DIA-
GRAM /WIRING DIAGRAM
[1] SYSTEM BLOCK DIAGRAM
A
C
B
D
E
F
G
H
2109
8
7
6
54
3
1
NetSOC
External Key( For 60" and 70" model )
Ethernet Jack
TUNER
*Only LE660 for Realtek Net
Digital/AnalogTaiwan( PWB pattern)
T
E
R
M
IN
A
L
C
o
C
o
ro
O
P
C
P
IR
S
e
n
s
o
r, Ex
te
rn
a
l R
e
m
o
te
a
nd
L
E
D
unit
L/R
Y
/P
b
/P
r
C
VBS
a
n
d
A
u
d
io
L
/R
L
/
R
USB_DP2
/DN2
USB_DP1
/DN1
USB_DP0
/DN0
*E
x
c
ep
t T
a
iw
a
n
HP Det
*D
2
M
odel o
n
ly
realtek wifi IC
HDMI
INPUT 3
INPUT 1
INPUT 2
INPUT 4
INPUT 5
MA
IN
P
OWER
I
C
1
7
0
2
Y
amaha
A
UDIO
A
M
P
V
H
IY
D
A
1
7
6
D
L
-1
Y
4
p
in
SP_L
IC3301 (MSTAR)
R
H
-
IX
D
619WJ
Q
Z
Q
(M
S
D
8821KT
K
for
X
)
SP_
M
U
T
E
V
D
A
UDIO
_OUT
SPI
SP
I
I/F
SP_R
SP
_
L
SP
_
R
SP R
8
Ω
1
0
W
IC
3
1
0
4
SPI F
L
ASH
W
in
b
o
n
d
V
HI
W
2
5
Q
2
8
FV
-1
Y
SP L
8
Ω
1
0
W
D
R
A
M
IF
I2
S_M
CLK
da
ta
A
(8
)
clkA
(2
)
da
ta
B
(8
)
clkB
(2
)
P
an
e
l
40
:F
U
ll
HD
60
:
F
U
LL
HD
Dou
b
le
sca
n
R1lk600D3G
V0
DF
70
"Full HD
Do
u
b
le
S
c
an
L
VDS
(
8
b
it
)
L
VDS
(8
b
it)
clkA
(2
)
da
ta
B
(8
)
clk
B
(2
)
da
t
a
A
(
8
)
KEY
KEY/SW
KEY
1
/
2
/P
O
W
E
R
I
R
IN
J502
C
o
m
p
A
ud
io
I
N
J502
C
VBS/C
O
M
P
IN
J5
0
2
M
o
n
L/R O
U
T
M
on
itor
A
ud
i
o
M
o
n
A
m
p
c
ircuit
J508 (
1
.5
A
)
U
SB
I
(S
U
PP
L
Y
)
CV
B
S
C
O
M
P
A
UD
IO
P
C
DD
C
S
C
502
P
C
D
S
U
B
15pin
P
C
(R
G
B
)
H
D
J506
P
C
A
ud
io
S
C
501
P
C
D
S
U
B
9p
in
U
SB
IF
J5
0
4
HP
H
P
A
m
p
c
ircuit
H
P
A
ud
io
out
I
2
S
_
S
D
SP
D
IF
O
U
T
D
516
SP
D
IF
O
U
T
Sharp TUNER
RTUNQA073WJQZ
I2
C
IF
+
/
IF
-
Built-in
D
e
m
odula
tor
40"P
o
w
e
runit
60
"
P
o
w
e
rUn
it
7
0
"P
owe
rUn
it
L
ED D
r
iv
er
O
FL
E
R
R
OR
P
NL S
T
B
P
9
6
0
2
1
6
p
in
12
V
SP_
S
T
B
Y
IC3502
Sa
m
s
un
g
D
D
R3 1
G
b
R
H
-
IX
D4
0
6
W
J
Q
ZQ
Sharp TUNER
RTUNQA075WJQZ
IF
+
/
IF
-
I2
C
S
C3
8
0
1
4
1
p
in
X
IN
/X
OUT
X
3
3
0
1
X
T
A
L(24
.
0
M
H
z
)
I2
S
_
S
C
L
K
I
2
S
_
LRC
L
K
P3302
4 pin (External KEY)
-
For 60"/70"
Key1
Key2
STBY_
GND
T
S
S
C
4401
C
I +
PS_ON(6
0
" and
70
"
)
J501 (1
.
5
A
)
J507 (
500
m
A
)
232
C
_TX
232C_
R
X
RC
on
trol
IR
_
P
AS
S
12
V
UART
R
S
-232C
M
o
tio
n
UAR
T
I2
C
_
D
AT
I2
C
_
C
L
K
R
C
o
n
tro
l
M
oti
o
n De
tector
I2C_
C
L
K
I2C_
D
A
T
R
T
D_R
ESE
T
A
C_C
T
RL
WIFI Module
C
E
C
IN
HD
M
I IN1
HDM
I
SC1501
HDMI 1/ARC
da
t
a
(4
clk(
2
)
I2
C
(
H
D
M
HPD0_
IN
/D
5
V
HDM
I I
N
3
HDM
I DDC
3
SC1503
HDMI 2/MHL(900mA)
data
(4
clk
(
2
)
I
2
C
(
H
D
M
I
HPD2_
IN
/D
5
V
M
HL
_
CAL
E_DET
HDM
I I
N
2
HDM
I DDC
2
HDM
I
S
W
IT
C
H
da
t
a
(
clk(
2
)
I2
C
(
H
D
M
HPD1_
IN
/D
5
V
SC1504
HDMI 3
_
Data
clk(2
)
HPD1_IN/D
5
V
I2
C
(
H
D
M
I
SC1507
HDMI 5
_
Data
cl
k
(
2
)
HPD4_
IN/D
5
V
I2
C
(H
D
M
I
SC1508
HDMI 6
_
D
a
ta
clk(2
)
HPD5_IN
/D
5
V
I2
C
(
H
D
M
I
SC1506
HDMI 4
_
Da
t
a
clk(2
)
HPD3_
IN/D
5
V
I2
C
(H
D
M
I
E
T
H_RX
E
T
H_T
X
HDMI6
J9401 8 pin
LED_R
P
3
8
0
2
1
0
p
in
LE
D
G
re
e
n
/ Red
IR
R
ec
e
i
v
er
SC1508 41 pin
USB
WISTERIA SYSTEM BLOCK
Page 35
LC-60H20T/LC-70H20T
7 – 2
[2] WIRING DIAGRAM LC-60H20T
A
C
B
D
E
F
G
H
2109
8
7
6
54
3
1
[LW]
[PD]Main
POWER[SP]
Q
[
NE]
[RB]
[KM]
D
UNTKG448FM**
RUNTKB316WJQZ
DUNTKG477FM**
DUNTKG505FM**
Cocoro
NetSOC
WIFI
1
16
41 1
USB 1
2
4
1
HDMI1
HDMI2
[KM] 4 1
1 41
1
4
HP
1
4
1
1
0
1
4
HDMI3
HDMI5
HDMI4
USB
2
Ethernet
1
41
USB
OU
T
PU
T
Page 36
LC-60H20T/LC-70H20T
7 – 3
[3] WIRING DIARAM LC-70H20T
A
C
B
D
E
F
G
H
2109
8
7
6
54
3
1
DUNTKG504FM**
[LW]
[PD]Main
POWER[SP]
R
U
N
T
K
B
2
8
6
W
J
Q
Z
DUNTKG503FM**
[NE]
[RB]
[KM]
D
U
NTKG448FM**
RUNTKB316WJQZ
DUNTKG477
F
M**
DUNTKG505FM**
Cocoro
NetSOC
WIF
I
1
16
41
1
USB 1
24
1
HD
M
I1
HDMI
2
[KM] 4 1
1 41
1 4
HP
1
4
1
10
1
4
HDMI
3
HDMI5
HDMI4
US
B 2
Ethernet
1
41
USB
OUTPUT
Page 37
LC-60H20T/LC-70H20T
8 – 1
CHAPTER 8. DESCRIPTION OF
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 110-240V. Signals are fed by a colour 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 "
" is omitted.
(K=k
=1000
, M=M
).
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
F, unless otherwise noted.
(P=pF=
F)
.
2) All capacitors are 50V, unless otherwise noted.
CAUTION:
T
his circuit diagram is original one,
therefore there may b
e
a slight
difference from yours.
SAFETY NOTES:
1) DISCONNECT THE AC PLUG FROM THE AC OUTLET
BEFORE REPLACING
PARTS.
2) SEMICONDUC
TOR HEAT
SINKS SHOU
LD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS
OPERATING.
IMPORTANT SAFETY NOTICE:
P
A
RTS 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.
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 54
LC-60H20T/LC-70H20T
[1] PRINTED WIRING BOARD ASSEMBLIES
1 DKEYMG542FM01VMAIN UNIT ( LC-60H20T )
1 DKEYMG542FM02VMAIN UNIT ( LC-70H20T )
1 RUNTK285WJQZBXVPOWER UNIT ( LC-60H20T )
1 RUNTK286WJQZBZVPOWER UNIT ( LC-70H20T )
1 DUNTKG505FM01BMVCOCORO EYE
1 RUNTKB316WJQZBLVWIFI MODULE
[2] LCD PANEL
1 R1JE601D3HA10WDXVLCD HIRAKI PANEL UNIT ( LC-60H20T )
1 CLCDTA375WEA4DYVLCD PANEL MODULE UNIT ( LC-60H20T )
1 R1JE695D3HC50WDXVLCD HIRAKI PANEL UNIT ( LC-70H20T )
1 CLCDTA376WEA4EXVLCD PANEL MODULE UNIT ( LC-70H20T )
1 RUNTKB270WJZZBMVLED BAR ( LC-60H20T )
1 RUNTKB273WJZZBMVLED BAR ( LC-70H20T )
1 DUNTKG477FMG1BYVT-CON UNIT
No part of this publication may be reproduced,stored in a retrieval system, or transmitted inany form or by any means, electronic, mechanical,photocopying, recording, or otherwise, withoutprior written permission of the publisher.
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.