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.
LC-52DH77E/RU/S
LC52DH77E
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:
FOR CONTINUED PROTECTION AGAINST A
RISK OF FIRE REPLACE ONLY WITH SAME
TYPE FUSE.
• 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 1.05 V peak (this corresponds to 0.7 mA peak AC.)
or more is excessive and indicates a potential shock hazard which
must be corrected before returning the monitor to the owner.
F7000, F7001 (4A/250V)
DVM
AC SCALE
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 220~240 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.
1.5k ohm
10W
0.15µF
TEST PROBE
CONNECT TO
KNOWN EARTH
GROUND
i
LC-52DH77E/RU/S
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:
L Fa
Indicates lead-free solder of tin, silver and copper.
Indicates lead-free solder of tin, silver and copper.
L F a/a
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.
A. Information on Disposal for Users (private households)
1. In the European Union
Attention: If you want to dispose of this equipment, please do not use the ordinary dust bin!
Used electrical and electronic equipment must be treated separately and in accordance with legislation that requires
proper treatment, recovery and recycling of used electrical and electronic equipment.
Following the implementation by member states, private households within the EU states may return their used
Attention: Your product
is marked with this
symbol. It means that
used electrical and
electronic products
should not be mixed
with general household
waste. There is a
separate collection
system for these
products.
electrical and electronic equipment to designated collection facilities free of charge*. In some countries* your local
retailer may also take back your old product free of charge if you purchase a similar new one.
*) Please contact your local authority for further details.
If your used electrical or electronic equipment has batteries or accumulators, please dispose of these separately
beforehand according to local requirements.
By disposing of this product correctly you will help ensure that the waste undergoes the necessary treatment, recovery
and recycling and thus prevent potential negative effects on the environment and human health which could otherwise
arise due to inappropriate waste handling.
2. In other Countries outside the EU
If you wish to discard this product, please contact your local authorities and ask for the correct method of disposal.
For Switzerland: Used electrical or electronic equipment can be returned free of charge to the dealer, even if you don’t
purchase a new product. Further collection facilities are listed on the homepage of www.swico.ch or www.sens.ch.
B. Information on Disposal for Business Users
1. In the European Union
If the product is used for business purposes and you want to discard it:
Please contact your SHARP dealer who will inform you about the take-back of the product. You might be charged for
the costs arising from take-back and recycling. Small products (and small amounts) might be taken back by your local
collection facilities.
For Spain: Please contact the established collection system or your local authority for take-back of your used
products.
2. In other Countries outside the EU
If you wish to discard of this product, please contact your local authorities and ask for the correct method of disposal.
The battery supplied with this product contains traces of Lead.
For EU: The crossed-out wheeled bin implies that used batteries should not be put to the general household waste!
There is a separate collection system for used batteries, to allow proper treatment and recycling in accordance with
legislation. Please contact your local authority for details on the collection and recycling schemes.
For Switzerland: The used battery is to be returned to the selling point.
For other non-EU countries: Please contact your local authority for correct method of disposal of the used battery.
iii
LC52DH77E
CHAPTER 1. OPERATION MANUAL
[1] SPECIFICATIONS
LC-52DH77E/RU/S
Service Manual
Item
LCD panel
Resolution
Video Colour SystemPAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV Function TV-StandardAnalogueCCIR (B/G, I, D/K, L/L')
DigitalDVB-T (2K/8K OFDM)
Receiving
Channel
TV-Tuning SystemAuto Preset 999 ch: non-Nordic / 9999 ch: Nordic (ATV: 99 ch), Auto Label, Auto Sort
STEREO/BILINGUALNICAM/A2
Brightness450 cd/m
Viewing anglesH: 176°, V: 176°
Audio amplifier
Speaker
TerminalsAntenna
RS-232CD-Sub 9 pin male connector
EXT1SCART (AV input, Y/C input, RGB input, TV output)
EXT2SCART (AV input/monitor output, Y/C input, AV Link)
EXT3COMPONENT IN: Y/P
EXT415 pin mini D-sub, Ø 3.5 mm jack*
HDMI1 (EXT5)HDMI
HDMI2 (EXT6)HDMI, Ø 3.5 mm jack*
HDMI3 (EXT7)HDMI
EXT8RCA pin (AV input)
USBUSB
DIGITAL AUDIO OUTPUTOptical S/PDIF Digital audio output
Weight23.5 kg (Without stand), 27.0 kg (With stand)
Operating temperature
The HDMI2 and EXT4 terminals can both use the same audio input terminal.
*
As a part of our 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.
VHF/UHFE2-E69 ch, F2-F10 ch, I21-I69 ch, IR A-IR J ch (Digital: IR A ch-E69 ch)
Refer to the inside back cover for dimensional drawings.
Optional accessory
The listed optional accessories are available for this LCD
colour TV. Please purchase them 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.
No.Part namePart number
Wall mount bracket
1
(LC-52DH77E, LC-52DH77RU,
LC-52DH77S)
1 – 1
AN-52AG4
LC-52DH77E/RU/S
[2] OPERATION MANUAL
Remote control unit
1
2
3
4
5
6
7
8
9
10
11
(Standby/On)
Buttons for useful operations
(Teletext)
ATV: Display analogue teletext.
DTV: Select MHEG-5 and teletext for
DTV.
(Reveal hidden Teletext)
(Subtitle)
Switch subtitle languages on/off.
(Freeze/Hold)
Press to freeze a moving image on
the screen.
Teletext: Stop updating teletext
pages automatically or release the
hold mode.
(Subpage)
(Top/Bottom/Full)
Set the area of magnification in
teletext mode.
0–9 numeric buttons
Set the channel.
Enter desired numbers.
Set the page in teletext mode.
•
When the five Nordic countries
(Sweden, Norway, Finland,
Denmark, or Iceland) are selected
in the country setting from “Auto
Installation”, DTV services are
four digits. When another country is
selected, DTV services are three digits.
(Flashback)
Press to return to the previously
selected channel or external input.
DTV
Press to access digital TV mode.
ATV
Press to access conventional
analogue TV mode.
(Sound mode)
Select a sound multiplex mode.
+/- (Volume)
Increase/decrease TV volume.
(Mute)
TV sound on/off.
(WIDE MODE)
Select a wide mode.
AV MODE
Select a video setting.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
12
///
Select a desired item on the setting
screen.
OK
Execute a command within the
“MENU” screen.
ATV/DTV: Display the programme
list when no other “MENU” screen is
running.
(Cursor)
15
16
17
18
19
20
21
22
23
24
25
13
END
Exit the “MENU” screen.
14
R/G/Y/B (Colour) buttons
The coloured buttons are
correspondingly used to select the
coloured items on the screen (e.g.
EPG, MHEG-5, Teletext).
15
16
17
18
19
20
21
22
23
24
25
(INPUT SOURCE)
Select an input source.
EPG
DTV: Display the EPG screen.
RADIO
DTV: Switch between Radio and
Data mode.
•
When only data broadcasting (no
radio broadcasting) is transmitted
by DVB, the radio broadcasting
will be skipped.
P. INFO
Press to display programme
information which is transmitted
through digital video broadcasting in
the upper left corner of the screen
(DTV only).
P
/
Select the TV channel.
(Display information)
Press to display the station
information (channel number, signal,
etc.) in the upper right corner of the
screen.
ECO (Standard/Advanced/Off)
Select “Energy Save” setting.
MENU
“MENU” screen on/off.
(Return)
Return to the previous “MENU”
screen.
SLEEP
Press to schedule a time for the TV
to automatically standby.
AQUOS LINK buttons
If external equipment such as a
AQUOS BD Player is connected via
HDMI cables and is AQUOS LINK
compatible, you can use these
AQUOS LINK buttons.
1 – 2
TV (Front view)
LC-52DH77E/RU/S
OPC indicatorRemote control sensor
TV (Rear view)
1
456
OPC sensor
2
(Standby/On) indicator
16
11
3
12
13
The terminal layout may differ depending
*
on the model.
14
15
7 8910
WARNING
Excessive sound pressure from earphones and headphones can cause hearing loss.
•
Do not set the volume at a high level. Hearing experts advise against extended listening at
The HDMI2 and EXT4 terminals
can both use the same audio input
terminal. However, the proper item
must be selected in the “PC Audio
Select” menu.
LC-52DH77E/RU/S
Attaching the stand unit
Before attaching (or detaching) the stand, unplug the AC cord from the AC INPUT terminal.
•
Before performing work, spread cushioning over the surface on which you will be laying the TV. This will prevent it from being
•
damaged.
CAUTION
Attach the stand in the correct direction.
•
Be sure to follow the instructions. Incorrect installation of the stand may result in the TV falling over.
•
3
Confirm that there are eight screws (four short
1
screws and four long screws) with the stand unit.
2
Attach the supporting post for the stand unit
onto the base using the four long screws with
the hex key (supplied) as shown.
Hex key
Inserting the stand.
Insert the stand into the openings on the
1
bottom of the TV (Hold the stand so it will
not drop from the edge of the base area).
Insert and tighten the four short screws into
2
the four holes on the rear of the TV.
Short screw
Soft cushion
Hex key
22
Supporting
post
Long screw
1
1
NOTE
To detach the stand unit, perform the steps in reverse
•
order.
1 – 4
LC-52DH77E/RU/S
Inserting the batteries
Before using the TV for the first time, insert two supplied “AAA” size zinc-carbon batteries. When the batteries
become depleted and the remote control unit fails to operate, replace the batteries with new “AAA” size batteries.
Open the battery cover.
1
2
Insert two supplied “AAA” size zinc-carbon
batteries.
Place batteries with their terminals corresponding to the
•
(+) and (-) indications in the battery compartment.
Close the battery cover.
3
CAUTION
Improper use of batteries can result in chemical leakage or explosion. Be sure to follow the instructions below.
Do not mix batteries of different types. Different types of batteries have different characteristics.
•
Do not mix old and new batteries. Mixing old and new batteries can shorten the life of new batteries or cause
•
chemical leakage in old batteries.
•
Remove batteries as soon as they have worn out. Chemicals that leak from batteries can cause a rash. If you
find any chemical leakage, wipe thoroughly with a cloth.
•
The batteries supplied with this product may have a shorter life expectancy due to storage conditions.
If you will not be using the remote control unit for an extended period of time, remove the batteries from it.
•
When replacing the batteries, use zinc-carbon batteries instead of alkaline ones.
•
Note on disposing batteries:
The batteries provided contain no harmful materials such as cadmium, lead or mercury.
Regulations concerning used batteries stipulate that batteries may no longer be thrown out with the household
rubbish. Deposit any used batteries free of charge into the designated collection containers set up at commercial
businesses.
Using the remote control unit
Use the remote control unit by pointing it towards the remote control sensor. Objects between the remote control
unit and sensor may prevent proper operation.
5m
30°30°
Remote control sensor
Cautions regarding the remote control unit
•
Do not expose the remote control unit to shock. In addition, do not expose the
remote control unit to liquids, and do not place in an area with high humidity.
•
Do not install or place the remote control unit under direct sunlight. The heat
may cause deformation of the unit.
•
The remote control unit may not work properly if the remote control sensor of
the TV is under direct sunlight or strong lighting. In such cases, change the
angle of the lighting or the TV, or operate the remote control unit closer to the
remote control sensor.
1 – 5
LC-52DH77E/RU/S
Troubleshooting
ProblemPossible Solution
No power.•
The TV cannot be operated.•
Remote control unit does not operate.•
Picture is cut off.•Is the image position correct?
Strange colour, light colour, or dark
•Adjust the picture tone.
colour, or colour misalignment.
Power is suddenly turned off.•The TV’s internal temperature has increased.
No picture.•Are connections to external equipment correct?
No sound.•Is the volume too low?
The TV sometimes makes a cracking
•This is not a malfunction. This happens when the cabinet slightly expands and contracts
sound.
Check if you pressedon the remote control unit.
•
If the indicator on the TV lights up red, press.
Is the AC cord disconnected?
•
Check if you pressedon the TV.
•
External influences such as lightning, static electricity, etc., may cause improper operation. In this
•
case, operate the TV after first turning off the power, or unplugging the AC cord and re-plugging
it in after one or two minutes.
Are batteries inserted with polarity (+, -) aligned?
•
Are batteries worn out? (Replace with new batteries.)
•
Are you using it under strong or fluorescent lighting?
•
•
Is a fluorescent light illuminating to the remote control sensor?
•
Are screen mode adjustments (WIDE MODE) such as picture size made correctly?
•
•
Is the room too bright? The picture may look dark in a room that is too bright.
•
Check the “Colour System” setting.
•
•
Remove any objects blocking the vent or clean.
•
Is the “Sleep Timer” set? Select “Off” from the “Sleep Timer” menu.
Is “No Signal Off” or “No Operation Off” activated?
•
•
Is the input signal type selected correctly after connection?
•
Is the correct input source selected?
•
Is a non-compatible signal being input?
•
Is the picture adjustment correct?
•
Is the antenna connected properly?
•
Is “On” selected in “Audio Only”?
•
•
Make sure that headphones are not connected.
•
Check if you pressedon the remote control unit.
•
Is the proper item selected in the “PC Audio Select” menu when connecting devices to the
•
HDMI2 terminal or the EXT4 terminal?
•
according to changes in temperature. This does not affect the TV’s performance.
Cautions regarding use in high and low temperature environments
•
When the TV is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed.
This is not a malfunction, and the TV will recover when the temperature returns to normal.
Do not leave the TV in a hot or cold location. Also, do not leave the TV in a location exposed to direct sunlight or near a
•
heater, as this may cause the cabinet to deform and the LCD panel to malfunction.
Storage temperature: +5 °C to +35 °C.
Information on the software license for this product
Software composition
The software included in this product is comprised of various software components whose individual copyrights are held by
SHARP or by third parties.
Software developed by SHARP and open source software
The copyrights for the software components and various relevant documents included with this product that were developed
or written by SHARP are owned by SHARP and are protected by the Copyright Act, international treaties, and other relevant
laws. This product also makes use of freely distributed software and software components whose copyrights are held by
third parties. These include software components covered by a GNU General Public License (hereafter GPL), a GNU Lesser
General Public License (hereafter LGPL) or other license agreement.
Obtaining source code
Some of the open source software licensors require the distributor to provide the source code with the executable software
components. GPL and LGPL include similar requirements. For information on obtaining the source code for the open source
software and for obtaining the GPL, LGPL, and other license agreement information, visit the following website:
http://www.sharp-eu.com/gpl/
We are unable to answer any questions about the source code for the open source software. The source code for the
software components whose copyrights are held by SHARP is not distributed.
Acknowledgements
The following open source software components are included in this product:
1. Remove the 4 lock screws and detach the Stand Unit.
2. Remove the 4 lock screws, 1 lock screw, 11 lock screws and detach the Back Cabinet Ass’y.
1
2
34
Back Cabinet Ass'y
Front Cabinet Ass'y
4
3
2
1
Stand Unit
2 – 1
2. Removing of Bottom Cover, Speaker (L/R), Control Cover Ass’y, KEY Unit and LED Unit.
1. Disconnect all the connectors from all the PWBs.
2. Remove the Bottom Cover.
2
3. Remove the Speaker (L), (R).
4. Remove the Control Cover Ass’y.
5. Remove the KEY Unit.
6. Remove the LED Unit.
1
Control Cover Ass'y
[KM]
[RA]
LC-52DH77E/RU/S
KEY Unit
LED Unit
2
[KM]
[RA]
Speaker (R)
[SP]
[SP]
Bottom Cover
[SP]
Speaker (L)
1
2 – 2
LC-52DH77E/RU/S
6
3. Removing of Side AV Cover Ass’y and Full Shield.
1. Remove the 1 lock screw, 2 lock screws and detach the Side AV Cover Ass’y.
2. Remove the 2 lock screws, 4 lock screws, 1 lock screw, 5 lock screws and detach the Full Shield.
1
34
2
5
2
1
Side AV
Cover Ass'y
4
3
6
Full Shield
4
5
2 – 3
4. Removing of Connectors.
1. Disconnect all the connectors from all the PWBs.
LC-52DH77E/RU/S
INVERTER Unit
[LB2]
[LA]
[LW] [LP][PL]
MAIN Unit
[LB1]
LCD Control Unit
[PD]
[LW]
[LP]
[LB1]
[PD]
[PL]
[LB2]
[LA]
POWER Unit
2 – 4
LC-52DH77E/RU/S
5. Removing of POWER Unit, MAIN Unit, Corner Lug (A/B/L/S), Vesa Angle Bottom Ass’y, Vesa Angle Top Ass’y
and LCD Panel Module.
1. Remove the 6 lock screws, 3 hooks and detach the POWER Unit.
2. Remove the 7 lock screws and detach the MAIN Unit.
3. Remove the 6 lock screws, 10 lock screws and detach the Corner Lug (A/B/L/S).
4. Remove the 6 lock screws and detach the Vesa Angle Bottom Ass’y.
5. Remove the 4 lock screws and detach the Vesa Angle Top Ass’y.
6. Remove the 6 hooks and detach the LCD Panel Module.
1
3
4
6
7
2
5
5
Corner Lug (A)
Hook
7
7
Vesa Angle Top Ass'y
6
6
Vesa Angle Bottom Ass'y
Corner Lug (B)
Corner Lug (A)
5
Corner Lug (B)
Hook
LCD Panel Module
Corner Lug (L)Corner Lug (L)
HookHook
Hook
2 Power
PWB
4
5
5
4
Corner Lug (S)
3
MAIN Unit
POEWR Unit
Holder
1
2 – 5
LC-52DH77E/RU/S
6. Removing of LCD Panel Module.
1. Remove the 16 lock screws and detach the Bezel Ass’y.
2. Detach the Lens Sheet and Diffusion Plate.
3. Detach the 2 pieces Lamp Holder Unit, Socket and detach the following 18 pieces Lamp from BL Chassis Ass'y.
1
34
5
7
Lamp Holder Unit
5
2
7
Socket
6
BL Chassis Ass'y
8
8
6
1
1
2
Bezel Ass'y
3
Lens Sheet
4
Lamp
Diffusion Plate
Lamp Holder Unit
5
2 – 6
LC-52DH77E/RU/S
LC52DH77E
CHAPTER 3. ADJUSTMENT PROCEDURE
Service Manual
[1] ADJUSTMENT PROCEDURE
1. Adjustment method after PWB and/or IC replacement due to repair
The unit is set to the optimum at the time of shipment from the factory. If any value should become improper or any adjustment is necessary due to
the part replacement, make an adjustment according to the following procedure.
1. Procure the following units in order to replace the main unit, IC3302.
MAIN UNIT: DUNTKF190FM01
NOTE: [Caution when replacing ICs in the main unit (IC501, IC1504, IC2002)]
The above ICs are EEPROMs storing the EDID data of PC, HDMI and Monitor microcomputer.
Before replacing the relevant part, procure the following parts in which the data have been rewritten.
2. After replacing the LCD panel or LCD control UNIT, check PANEL_SIZE in the following procedure.
1) Enter the process adjustment mode in AVC.
2) Use the cursor keys (/) and P keys (/) of R/C to select the item [PANEL_SIZE] on the page 16/16.
3) Verify that the panel size is displayed.
4) If the size doesn't match, select the values of the panel size with the VOL (+/-) keys.
5) After selection in Step 4), press the OK key, and it is completed with OK displayed.
3. After replacing the LCD panel or LCD control PWB, adjust the VCOM in the following procedure.
1) Enter the process adjustment mode.
2) Use the cursor keys (/) and P (/) of R/C to select the item [VCOM ADJ] on the page 10/16.
3) Press the OK key to verify that the adjustment pattern is displayed.
4) Use the +/- keys of VOL of R/C to adjust the flicker in the center of the screen to minimum.
5) When the optimal state is achieved in Step 4, press the OK key to turn the pattern to OFF.
2. Entering and exiting the adjustment process mode
1. Unplug the AC power cord of running TV set to force off the power.
2. While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the power.
The letter “K” appears on the screen.
3. Next, hold down the “VOL (-)” and “P ()” keys on the set at once.
Multiple lines of blue characters appearing on the screen indicate that the set is now in the adjustment Process mode.
If 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 power cord to force off the power. (When the power is turned off
with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait 10 seconds or so before plugging.)
CAUTION: Use due care in handling the information described here lest the users should know how to enter the adjustment process mode.
If the settings are tampered with in this mode, unrecoverable system damage may result.
3. Remote controller key operation and description of display in adjustment process mode.
1. key operation
Remote controller keyMain unit keyFunction
P (/)P (/ )
VOL (+/-)VOL (+/-)Changing a selected item setting (+1/-1)
Cursor (/)
Cursor (</>)—Changing a selected line setting (+10/-10)
INPUTINPUTInput source switching (toggle switching) (TV→EXT1~8)
OK—Executing a function
RETURN—Returning to a present page
Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.
—Turning a page (PREVIOUS/NEXT)
Moving an item (line) by one (UP/DOWN)
3 – 1
4. Description of display
(1) Present page / number of total pages(4) Inducing display
(3) Present colour system
(2) Input that has been selected now(5) Model name
1/16INPUT1AUTOEURO52E_DH77E
MAIN Version1.00 (E 2008/**/** 1HDE2)
BOOT Version
Monitor Version1.0
T-CON /H.264Version
CPLD Versionc3
EQ DATA CHECKSUMROM
LAMP ERROR0
MONITOR ERR CAUSE11 11 1 1 11
NORMAL STANDBY CAUSE0
ERROR STANDBY CAUSE1) 02) 03) 0
0H 0M0H 0M0H 0M
4) 05) 0
0H 0M0H 0M
LC-52DH77E/RU/S
(6) Item name(7) Parameter
No.DescriptionDisplay specification
(1)Present page/number of total pages2char/2char Decimal Number mark.
(2)Input that has been selected nowTUNER/DTV/INPUT1/INPUT2/INPUT3/INPUT5/INPUT6/INPUT7/INPUT8
(3)Present colour systemNTSC/PAL/SECAM/COMP15K/COMP33K/COMP45K/COMP28K/COMP31K
(4)Inducing displayEUROPE/RUSSIA/SWEDEN
(5)Model nameMODEL NAME
(6)Item nameMax. 30 char
(7)ParameterMax. 60 char
3 – 2
LC-52DH77E/RU/S
5. Adjustment process mode menu
The character string in brackets [ ] will appear as a page title in the adjustment process menu header.
1MAIN VersionMain software version
2BOOT VersionBOOT Version.
3Monitor VersionMonitor software version
4T-CON/H.264 VersionT-CON/H.264 Version
5CPLD VersionCPLD Version.
6EQ DATA CHECKSUMAudio data checksum.
7LAMP ERRORNumber of termination due to lamp error.
8MONITOR ERR CAUSELast error standby cause.
9NORMAL STANDBY CAUSESituation that became standby at the end. (Excluding the error)
10ERROR STANDBY CAUSE[1] 0 0H 0MError standby cause Total operating time before error.
9ADJ PARAM SETEnterADJ PARAM SET
10VIC XPOS0X-coordinate setting for VIC READ
11VIC YPOS0Y-coordinate setting for VIC READ
12VIC SIGNAL TYPEMAINSignal type setting for VIC READ
13VIC READOFFPicture level acquisition function
3/16[TUNER ADJ]
1RF AGC ADJEnterRF-AGC auto adjustment execution
2TUNER ADJEnterTUNER auto adjustment execution
3PAL+TUNER ADJEnterPAL TUNER auto adjustment execution
4RF AGC ADJ (CA-8CH)EnterRF-AGC auto adjustment execution (CA-8CH)
5TUNER ADJ (CA-8CH)EnterTUNER auto adjustment execution (CA-8CH)
6PAL+TUNER ADJ (CA-8CH)EnterPAL TUNER auto adjustment execution (CA-8CH)
7RF AGC16RF AGC adjustment
8TUNER CONTRAST A_GAIN14TUNER signal level adjustment
9TUNER CONTRAST B_GAIN2048TUNER signal level adjustment
10TUNER CONTRAST OFFSET256TUNER signal level adjustment
11RF AGC READOFFReading value of RF-AGC voltage
7PRODUCT EEP ADR0x 0Don't touch when serving (for producer of factory)
8PRODUCT EEP DATA0x 0Don't touch when serving (for producer of factory)
3 – 5
LC-52DH77E/RU/S
6. Special features
1. NORMAL STANDBY CAUSE (Page 1/16)
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.
2. EEP SAVE (Page 16/16)
Storage of EEP adjustment value
3. EEP RECOVER (Page 16/16)
Retrieval of EEP adjustment value from storage area.
7. Lamp error detection
1. Function
This LCD colour TV set incorporates a lamp error detection feature that automatically turns off the power for safety under abnormal lamp or lamp
circuit conditions. If by any chance anything is wrong with the lamp or lamp circuit or if the lamp error detection feature is activated for some reason, the following will result.
1) The power is interrupted in about 6 seconds after it is turned on.
(The power LED on the front of the TV set turns red from green and keeps blinking in red: ON for 300ms and OFF for 1500ms.).
2) If the above phenomenon 1) occurs 5 times consecutively, it becomes impossible to turn on the power. (The power LED remained red).
2. Measures
1) Checking with lamp error detection OFF
Enter the adjustment process mode, referring to 2. Entering and exiting the adjustment process mode.
If there is a problem with the lamp or lamp circuit, the lamp will go out. (The power LED is green.)
Then, you can check the operation to see if the lamp and lamp circuit are in trouble.
2) Resetting the lamp error count
After the lamp and lamp circuit are found out of trouble, reset the lamp error count. If a lamp error is detected five consecutive times, the power
cannot be turned on. Using the cursor (/) key, move to the cursor to [LAMP ERROR RESET], Line 8 on adjustment process mode service page 2/16.
With the cursor (</>) keys, select the [LAMP ERROR RESET] value. Finally press the cursor (OK) eys to reset the value to “0”.
Table of contents of adjustment process mode Page 2/16
INDUSTRY INITEnter
INDUSTRY INIT (-Hotel)OFF
HOTEL MODEOFF
Center Acutime5H0M
RESETOFF
Backlight Acutime
RESETOFF
LAMP ERROR RESETOFF
ADJ PARAM SETEnter
VIC XPOS
VIC YPOS
0
0
VIC SIGNAL TYPEMAIN
VIC READOFF
Resetting to "0"
3 – 6
LC-52DH77E/RU/S
8. Public Mode (Hotel Mode)
1. Starting the Public Mode
• There are two following ways to display the PUBLIC Mode setting screen.
1) On the process adjustment mode screen (2/16), set the “HOTEL MODE” Flag to ON.
Turn off the power, and turn it on again, pressing the and keys of the main unit at the same time.
2) Enter the Pass Word, and start the unit.
a) Turn on the power, pressing the and keys of the main unit at the same time.
b) Display the Pass Word input screen.
INPUT
CHANNEL UP
Volume UP
Public ModePublic Mode
Operation procedure
• The initial input position is the digit at the left end.
9
• For the numeric keys to of R/C, key input is accepted. Input of the other keys is prohibited.
• Change “–” to “*” by inputting the numeric key at the input position, and shift the input position rightward one digit.
• When three digits are completely input, the Pass Word is judged.
c) Check the Pass Word by inputting three digits.
If the Pass Word is , it shifts to the PUBLIC Mode setting screen.
In another case, the screen is erased, and it operates in the ordinary mode.
2. Exiting the Public Mode screen
• There are two following ways to exit the Public Mode setting screen.
1) Turn off the power.
2) Select “Execution” in the PUBLIC_Mode to execute it.
Activate the restart under the set content. Here, the START input SOURCE setting is excluded since this item is referred to only when the
power is turned on.
3. Set value of the Public Mode
• When the shipment setting is done, a set each value in Public Mode is initialized.
(PUBLIC MODE in the process mode Setting of a flag is also initialized)
• Separately, the shipment beginnings when all except for each set value in Public Mode is initialized are provided for a process mode.
(INDUSTRY INIT (-HOTEL))
• Only when turning on the HOTELE MODE item, each setting is effective.
• After it decides it with EXECUTE, it AC OFF/ON it to reflect a set value.
0
2 7
0
Volume UP
Public Mode
3 – 7
4. Basic operation in the Public Mode
Volume (/) or Cursor (
Channel (/) or Cursor (/)
Decision (ok)Execution (Used by the items “Execution” and “RESET”.)
PUBLIC Mode R/COrdinary operation mode: It enters the PUBLIC Mode.
</>)
PUBLIC Mode: It exits the PUBLIC Mode.
Change or execution of the set value.
Movement to the selected item.
PUBLIC MODE Flag is set to “ON”.
PUBLIC MODE Flag does not change.
Any set item in PUBLIC Mode is not initialized.
Public Mode
POWER ON FIXED[VARIABLE]
SHUT DOWN MODE[NORMAL]
MAXIMUM VOLUME[60]
VOLUME FIXED[VARIABLE]
VOLUME FIXED LEVEL[20]
RC BUTTON[RESPOND]
PANEL BUTTON[RESPOND]
MENU BUTTON[RESPOND]
LC-52DH77E/RU/S
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]
HOTELMODE[ON]
RESET
EXECUTE
5. Operation after “RESET”
Select “RESET” in the PUBLIC Mode, and it operates as follows when it is executed (refer to the basic operation).
• The set contents in the PUBLIC mode are initialized.
• It does not exit the PUBLIC mode.
• If “EXCUTE” is not executed, the content that does RESET is not reflected.
3 – 8
LC-52DH77E/RU/S
6. Setting items (* Item names and selective items are expressed in English.)
1) Power ON fixed [POWER ON FIXED]
Option“VARIABLE”, “FIXED_ALL”, “FIXED_BODYKEY” or “RCRESPOND” (loopenabled)
Default“VARIABLE”
Function• When set to “FIXED_ALL”, the “POWER/RECEPTION” key on the main unit or remote control is disabled.
Key disabled when set
other than default
Remarks• When selecting to “FIXED_ALL”, it functions with the correspondence which isn’t done about other standby fac-
If the power button is pressed in the ordinary mode when set to “FIXED_ALL”, the caution is displayed for 5 seconds.
When power button on the main unit is pressed When power button on R/C is pressed
No Power off by power button.No Power off by remote control.
However, the power can be turned off using the “MAIN POWER” switch.
• For some models, the (MAIN) POWER switch is also disabled.
• When set to “FIXED_BODYKEY”, only the “MAIN POWER” key on the main unit is disabled (the remote control is
enabled).
• When selecting “RC RESPOND”, the main unit’s POWER switch toggles between ON and Standby (the same
operation as the remote control).
• OFF TIMER (SLEEP)
tors (see below).
• No operation OFF
• No signal OFF (including the power management)
* The OSD display is an example.
If another ODS is previously displayed, the status is reset (MENU or similar).
2) Instantaneous current shutdown setting when turning off the power [SHUT DOWN MODE]
Option“NORMAL” or “QUICK”
DefaultNORMAL
Function• Scanning or recording of the digital tuner is enabled/disabled when turning off the power.
It is possible to put into the standby state instantaneously due to power off input.
RemarksWhen selecting “QUICK”, the function does not work for the following items (The possibleme thod differs from model
to model: deleting the item, selection impossible, etc.)
• ON TIMER, QUICK START, DIGITAL FIXED, etc.
3) Volume maximum level [MAXIMUM VOLUME]
Option0 ~ 60 (loopdisabled)
Default60
Function• The volume cannot be increased more than the adjusted value (the main unit’s speaker only).
Remarks• When set to 59 or less, only the figure is displayed in the normal mode; the volume bar is not displayed.
• The volume of the headphones or monitor output is limited.
• The setting is impossible when VOLUME FIXED is set other than VARIABLE.
4) Volume fixed [VOLUME FIXED]
Option“VARIABLE”, “FIXED”, “ACCTRL” or “AC/RCCTRL” (loopenabled)
Default“VARIABLE”
Function• FIXED: The volume is fixed to the value adjusted in the volume fixed level.
Exception• In the adjustment process, the volume can be set to any level regardless of this setting.
Key disabled when set
to FIXED
Remarks• VOLUME FIXED has priority over MAXIMUM VOLUME.
• AC CTRL: In the case of ACON, the unit starts at the volume specified in the volume fixed level.
• AC/RC CTRL: The unit starts at the volume specified in the volume fixed level.
• VOLUME UP/DOWN (VOL+/-) [both remote control and main unit]
• MUTE (MUTE) * The main unit’s keys for the menu operation are enabled.
• The volume of the headphones or monitor output is fixed.
• The volume is not displayed when operating the above disabled keys.
3 – 9
LC-52DH77E/RU/S
5) Volume fixed level [VOLUME FIXED LEVEL]
Option0 ~ 60 (loop disabled)
Default20
FunctionThe volume is fixed to the adjusted value (the main unit’s speaker only).
Exception• In the adjustment process, the volume can be set to any level regardless of this setting.
Remarks• When setting VOLUME FIXED to “VARIABLE”, the setting cannot be changed.
• VOLUME can be abbreviated to VOL.
6) Remote control operation [RC BUTTON]
Option“RESPOND”, “NO RESPOND” or “LIMITED” (loop enabled)
DefaultRESPOND
FunctionThe operation of the remote control’s keys is set.
Exception• The PROCESS MODE, INSPECTION MODE and HOTEL MODE keys are enabled regardless of this setting.
RemarksThe keys enabled when set to “LIMITED” correspond to those on the remote control for hotel; they differ from model
7) Main Unit Operation [PANEL BUTTON]
Option“RESPOND” or “NO RESPOND” (loop enabled)
DefaultRESPOND
FunctionNO RESPOND: The main unit’s keys are disabled excluding the POWER key (RECEPTION/STANDBY key).
Exception• The start operation in the process mode, inspection mode or hotel mode is enabled regardless of this setting.
• When set to “NO RESPOND” the remote control’s keys in the normal state are disabled.
The POWER key (RECEPTION/STANDBY key) is also disabled.
• When set to “LIMITED”, only a part of keys (CHANNEL, etc.) is enabled and other keys are disabled. (POWER,
VOLUME (/), CHANNEL (/), LIGHT CONTROL (BRIGHTNESS SENSOR), BROADCAST
SELECT)
• All the keys are enabled regardless of this setting while entering the process mode, inspection mode or hotel
mode.
to model.
• All the keys are enabled regardless of this setting while entering the process mode, inspection mode or hotel
mode.
• For the main unit’s MENU key, menu operation is possible regardless of the setting during the initial setting when
the power is turned on for the first time.
8) Menu operation [MENU BUTTON]
Option“RESPOND” or “NO RESPOND” (loop enabled)
DefaultRESPOND
FunctionThe MENU key on the main unit or remote control is disabled.
Exception• The PROCESS MODE, INSPECTION MODE and HOTEL MODE keys are enabled regardless of this setting.
Key disabled when set
other than default
excluding the MENU key
RemarksWhen set to “NO RESPOND”
9) AV position fixed [AV POSITION FIXED]
Option“VARIABLE” or “FIXED” (loop enabled)
Default“VARIABLE”
Function• When set to “FIXED”, the image adjustment and sound adjustment items in the menu are fixed in the selected
Remarks• When receiving the sound select direct keys (AV POSITION key, OPC, DOLBY key, etc.), only the actual state is
• All the keys are enabled regardless of this setting while entering the process mode, inspection mode or hotel
mode.
All the direct transition keys to menu display (AUTO PRESET, MANUAL MEMORY and others)
• For the models with the MENU key on the main unit, menu operation is possible regardless of the setting during
the initial setting when the power is turned on for the first time.
state.
• When receiving “AV POSITION” of the remote control, only the actual state is displayed, and no setting is
changed.
displayed; no setting is changed.
• Since the settings for the hotel mode are retained even after the personal data is initialized, each item for the AV
position and image adjustment and each value for the sound adjustment are not initialized.
3 – 10
LC-52DH77E/RU/S
10)OSD display [ON SCREEN DISPLAY]
Option“YES”, “NO” or “LIMITED” (loop enabled)
DefaultYES
Function• When set to “NO”, the following OSD is not displayed.
Key which may be
enabled (Example of the
confusing key)
Key disabled when set
other than default
(example)
Remarks• When set to “NO”,
11)Start mode [INPUT MODE START]
Option“NORMAL” or “Input source 1 (input selection or channel)” • • • (loop enabled)
DefaultNORMAL
FunctionThe input source or channel to start when turning on the power is set.
“LIMITED” is looped only in case of need (destination).
Registration, setting, adjustment menu, channel call, volume bar, and input select.
• When set to “LIMITED”, only a part of OSD is not displayed.
* OK if simple input select occurs or the original state returns soon if left.
* The keys by which visibility of the screen or sound is changed cannot be used.
STILL IMAGE, SCREEN DISPLAY, OFF TIMER, AV POSITION, BRIGHTNESS SENSOR, SCREEN SIZE
SELECT, AUTO PRESET, MANUAL MEMORY, IMAGE SELECT, SOUND SELECT, LANGUAGE
The set time of OFF TIMER “SLEEP” is cleared.
When the card function is set to “NO”, all the functions including input select and direct keys are invalid.
If “NORMAL”, the content of the last memory is followed.
Display of the channel setting menu and channel setting operation are prohibited.
• When set to “NORMAL”, “START MODE FIXED” is set to “VARIABLE” and selection is prohibited.
12)Input fixed [INPUT MODE FIXED]
Option“VARIABLE” “FIXED”, “AC CTRL” or “AC/RC CTRL” (loop enabled)
DefaultVARIABLE
FunctionWhen set to “FIXED”, switching to another channel or input is impossible after start-up in the set value of “INPUT
MODE START”.
When set to “AC CTRL”, the unit starts in the set value of “INPUT MODE START” in the case of the ACON only.
When set to “AC/RC CTRL”, the unit starts in the set value of “INPUT MODE START”.
Key disabled when set
To “FIXED” (example)
Remarks• If the “START MODE” setting is “NORMAL”, this item cannot be set.
13)Speaker ON/OFF selection [LOUD SPEAKER]
Option“ON” or “OFF” (loop enabled)
DefaultON
FunctionThe sound from the speakers is not output even if the headphones are not used.
Remarks• When the VOLUME UP/DOWN key is pressed, the mute icon is displayed for 4 seconds.
14)Remote control path through [RC PATH THROUGH]
Option“OFF”, “ON: TV RCE” or “ON: TV RCD” (loop enabled)
DefaultOFF
FunctionThe signal received by the remote control’s light-receiving section is output to the blank pin (9pin) of RS232C.
Exception• Even in the case of “ON: TV RCD”, the PROCESS MODE, INSPECTION MODE and HOTEL MODE keys are
Remarks• The model always outputting and that impossible to output exist due to the structure of the hardware.
CHANNEL (/), DIRECT CHANNEL buttons, FLASHBACK, INPUT SELECT, TV/VIDEO, AUTO PRESET,
MANUAL MEMORY, i.LINK, DIRECT INPUT SELECT, ATV, DTV, EPG, RADIO
Set to “VARIABLE”.
• When set to “FIXED”
The channel setting menu and input selection menu in the menu are not displayed.
• For the MUTE key and sound-related keys, caution is displayed.
• For the headphones and monitor output sound, normal operation is possible.
enabled.
• Even in the case of “ON: TV RCD”, all the keys are enabled while entering the PROCESS MODE, INSPECTION
MODE and hotel mode.
3 – 11
15)232C power ON control [232C POWON]
[VIDEO input signal]
100% white
Option“ENABLE” or “DISABLE” (loop enabled)
DefaultDISABLE
FunctionPower ON by the 232C command is enabled/disabled in the standby state.
The same function as 232C command “RSPW”.
“ENABLE”: POWR0001 is always enabled.
“DISABLE”: Start-up may be impossible at POWR0001.
(If the 232C command reception module is set to OFF, the command is invalid.)
16)Hotel mode setting [HOTELMODE]
Option“OFF” or “ON” (loop enabled)
DefaultOFF
FunctionThe items set in the hotel mode setting menu are enabled or disabled.
The same item as [HOTELMODE] in the adjustment process menu.
Remarks• Each operation of the hotel mode is impossible unless this item is set to ON.
9. Video signal adjustment procedure
The adjustment process mode menu is listed in Section 5.
Signal generator level adjustment check (Adjust to the standard value level.)
• Composite signal PAL/SECAM: 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
• RGB signal : 0.7Vp-p ± 0.02Vp-p
• 15K component signal (50 Hz) : Y level: 0.7Vp-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
(Place the luminance meter in
the center of the screen.)
2Automatic adjustment
execution
[Command][Adjustment procedure]
Process mode
KRSW0001
KKT10037
Setting
KY0F0000
0SDS0001
SBSL0016
Multi-point adjustment mode
MSET0001
Adjustment value initialization
MSET0004
Point 6
LEV60232
MG6G****
MG6B****
MG6R****
Point 5
LEV50200
MG5G****
MG5B****
MG5R****
Point 4
LEV40136
MG4G****
MG4B****
MG4R****
Point 3
LEV30114
MG3G****
MG3B****
MG3R****
Point 2
LEV20078
MG2G****
MG2B****
MG2R****
Point 1
LEV10048
MG1G****
MG1B****
MG1R****
Writing
MSET0003
1) Confirm the setting conditions.
2) Connect the white balance adjustment jig.
3) Display the adjustment screen by the RS-232C command.
1) Transmit the “monitor adjustment process” code using the remote control.
2) Set the point 6 to the specified gradation, specify the strongest color as the
fixed color, and adjust the RGB so that it becomes the standard value through
negative adjustment.
3) Set the point 5 to the specified gradation, set the G correction value (3200 x G
value of point 6/3712) (fractions rounded off), and adjust the RB so that it
becomes the standard value.
4) Set the point 4 to the specified gradation, set the G correction value (2176 x G
value of point 6/3712) (fractions rounded off), and adjust the RB so that it
becomes the standard value.
5) Set the point 3 to the specified gradation, set the G correction value (1824 x G
value of point 6/3712) (fractions rounded off), and adjust the RB so that it
becomes the standard value.
6) Set the point 2 to the specified gradation, set the G correction value (1248 x G
value of point 6/3712) (fractions rounded off), and adjust the RB pattern so
that it becomes the standard value.
7) Set the point 1 to the specified gradation, set the G correction value (768 x G
value of point 6/3712) (fractions rounded off), and adjust the RB so that it
becomes the standard value.
8) Write the adjustment value by the MSET0003 command and turn off the AC
power.
* RGB initial value of point 6: Set gradation 3712
* RGB initial value of points 1 to 5: G correction value of each point
(At each point, adjustment is made so that the remainder of the RGB adjustment value/4 is equal.)
[Adjusted value]
* According to the “Standard settings” submitted by the Technical Department.
[Adjustment standard value]
Measuring instrument: [Minolta CA-210] Technical measuring instrument
LevelReference
value
Point 6928
Point 5800
Point 4544
Point 3456
Point 2312
Point 1192
RemarksSetting conditions when performing inspection
x = 0.272
y = 0.277
x = 0.272
y = 0.277
x = 0.272
y = 0.277
x = 0.272
y = 0.277
x = 0.272
y = 0.277
x = 0.272
y = 0.277
AV MODE: [DYNAMIC]
Monochro: ON
Aging Time: Min. 60 minutes
Adjustment
spec
±0.001±0.002
±0.001±0.002
±
0.0015±0.003
±0.0015±0.003
±0.003±0.006
±0.0035±0.007
Inspection
spec
11. Confirmation item
1. HDMI-CEC inspection
Check that the HDMI-CEC circuit is operating.
3 – 15
LC-52DH77E/RU/S
1.00
1.00
NO DATA
Software Update
0%
0%
NO DATA
Software Update
30%
NO DATA
30%
NO DATA
1.00
1.00
12. Initialization to factory settings
After completing the factory setting, turn off the AC power.
CAUTION: Do not turn on the power after completing the factory setting. If the power is turned on, configure the factory setting again. Do not turn off
the power using the remote control.
Adjustment
point
1Factory settingComplete the setting by
13. Upgrading the software
1. Turn off the AC power (Unplug the AC power cord).
2. Insert the upgrading USB flash memory for upgrade into the service slot.
3. While holding down the power button, plug in the AC power cord of the main unit to turn on the power.
4. Upgrade begins automatically.
After the set starts, the upgrade screen like the figure below is displayed.
Adjustment conditionsAdjustment procedure
In INDUSTRY INIT of the process page No. [2/16], select the destination [EUROPE / RUS-
turning off the AC power.
SIA / SWEDEN] using the [R/C] Volume +/- keys, and press the [R/C] OK key.
“///////////” is displayed, and then “SUCCESS ----- Destination” appears to complete the setting.
Success: Background color [Green] / Failure: Background color [Red]
Initialize the following items when configuring the factory setting.
1) User setting values
2) Channel data (broadcasting frequency, etc.)
3) Manufacturer option setting values
4) Password data
DH77
MAIN
SUB MICON
PANEL EEPROM
MAIN Versiin
SUB MICON Version
PANEL EEPROM
5. If any of the procedures fails, the following upgrade failure screen shows up. For the failing procedure, the “NG” marking turns red.
NOTE: In such case, try to upgrade the software again. If it still fails, the hardware may be in trouble.
DH77
MAIN
SUB MICON
PANEL EEPROM
MAIN Versiin
SUB MICON Version
PANEL EEPROM
3 – 16
LC-52DH77E/RU/S
Software Update
UPGRADE SUCCESS
100%
100%
NO DATA
1.00
1.00
NO DATA
6. When all the procedures are complete, the following upgrade success screen shows up. The new software version can be confirmed on screen.
The version number appears when each item has been successfully upgraded. Finally the main version number appears on screen.
DH77
MAIN
SUB MICON
PANEL EEPROM
MAIN Versiin
SUB MICON Version
PANEL EEPROM
7. Turn off the AC power (Unplug the AC power cord). Take out the upgrading USB flash memory.
It waits for about 20 seconds until the AC power supply is turned off.
8. Now the software has been upgraded.
NOTE: Then get the set started and call the process adjustment screen 1/16 to check the main software version.
CAUTION: 1) Do not take out and put in the USB flash memory during formatting.
2) It takes about one minute to the rewriting completion.
Please confirm the upgrade status on the screen becomes 100%.
3) The AC power supply of the set is waited for about 20 seconds until off (The AC outlet is pulled out) after the upgrade is completed.
3 – 17
LC52DH77E
CHAPTER 4. TROUBLESHOOTING TABLE
Service Manual
[1] TROUBLESHOOTING TABLE
No power supply (Front LED does not light up) and no power-up even if turned on (Front LED light up).
Is the wire harness in the unit properly connected?NOReconnect and recheck the wire harness.
YES
Are F7000 and F7001 normal?NOAre FL7001, L7000, L7001, Z7002, BD7000, Z7800, etc. faulty?
Check if the peripheral circuits are short-circuited.
YES
LC-52DH77E/RU/S
Is B_BUS (+320V) output? (Set the main power SW to OFF.)
* When power on/off switch is on ... About +400V
YES
Is BU+5V supplied from pin (11) of connector PD when the power
switch is turned off?
NODoes the PFC circuit normally work?
(Check IC7801, L7801, D7806, D7805, Q7804, Q7805, Q7807,
Q7808, etc. and the peripheral circuits.)
NOCheck the peripheral circuits on the primary side of IC7905,
T7901, etc. and the secondary side of D7918, IC7906, IC7907,
etc.
YES
Are INV60V and 13.5V output as for the power on/off switch
when it is on?
YES
Similarly, is PNL12V output as for the power on/off switch when it
is on?
NODoes the inverter circuit operate normally?
Check circuit around the primary side (T7001, T7600, IC7603,
IC7601, IC7600, Q7600-2, D7608, D7610, D7613, etc.), the secondary side (D7561-2, L7560, D7150-1, L7150, L7560, etc.), the
PS_ON circuit (Q7300-1, etc.), and the protection circuit.
NOCheck PNL_POW circuit of Q7121-3, etc. and the circuit around
the regulator circuit etc. of IC7121, D7127, etc.
4 – 1
LC-52DH77E/RU/S
The sound is not emitted from the speaker though the picture has come out.
No sound output in all modes?
Is the SPK_OUT communication output to from pins (N29/
SPK_OUT_R) (N30/SPK_OUT_L) of IC3302
(Digital AV decode & Main CPU)?
YES
Is the SPK_OUT communication sent to pins (3), (7) of IC2701
(POWER_AMP) from of IC3302?
YES
Is the audio signal output of pins (27, 28/L-ch), (11, 12/R-ch) of
IC2701 (POWER_AMP) normal?
YES
Is the audio signal output of pins (1, 2/L-ch), (4, 3/R-ch) of P2701
(SP) terminal normal?
YES
Check Speaker (right and left) and wire harness.
NOCheck IC3302 and its peripheral circuits.
NOCheck the line between IC3302 and IC2701.
NOCheck IC2701 and its peripheral circuits.
NOP2701 (SP) terminal and the peripheral circuit (L/C filter) are
checked.
No sound (during the reception of TV (ANALOG) broadcasting)
Does not the sound go out though the picture has come out when UHF/VHF is received?
Is a SIF signal output from pin (4) of TUNER (TU1101)?NOCheck the tuner and its peripheral circuits.
Replace as required.
YES
Is a SIF signal input to (AB27/S_IF) of IC3302 (Digital AV decode
& Main CPU) from pin (4) of TU1101?
YES
Refer to “No sound output in all modes”.
NOCheck the line between TU1101 and IC3302.
(Q1104, etc.)
4 – 2
LC-52DH77E/RU/S
No sound (during the reception of TV (DIGITAL) broadcasting)
Does not the sound go out though the picture has come out when DTV is received?
Is IF signal output from pins (16, 17) of TU1101?NOCheck the tuner and its peripheral circuits.
Replace as required.
YES
Is IF signal sent to pin (AA29/D__IF_P, AB29/D__IF_N) of
IC3302 (Digital AV decode & Main CPU)?
YES
Refer to “No sound output in all modes”.
No sound from external input devices (1)
Does not the sound of the audio signal input to EXT1/EXT2 go out?
Is there a audio input signal in pins (6/SC1_IN_L) and (2/
SC1_IN_R) of EXT1 (SC503)?
NOCheck the line between TU1101 and IC3302.
NOCheck the setting of an external input device that connects with
EXT1.
Is there a audio input signal in pins (6/SC2_IN_L) and (2/
SC2_IN_R) of EXT2 (SC502)?
YES
Is there a audio input signal in pins (V28/SC1_L) and (V27/
SC1_R) of IC3302 (Digital AV decode & Main CPU) from SC503?
Is there a audio input signal in pins (U27/SC2_L) and (U26/
SC2_R) of IC3302 (Digital AV decode & Main CPU) from SC502?
YES
Refer to “No sound output in all modes”.
No sound from external input devices (2)
Does not the sound of the audio signal input to EXT3 go out?
Is there a audio input signal in pins (2/COMP_IN_L) and (4/
COMP_IN_R) of EXT3 (J502)?
YES
Is there a audio input signal in pins (U29/COMP_L) and (U28/
COMP_R) of IC3302 (Digital AV decode & Main CPU) from
J502?
NOCheck the setting of an external input device that connects with
EXT2.
NOCheck the line between SC503 and IC3302.
NOCheck the line between SC502 and IC3302.
NOCheck the setting of an external input device that connects with
EXT3.
NOCheck the line between J502 and IC3302.
YES
Refer to “No sound output in all modes”.
4 – 3
LC-52DH77E/RU/S
No sound from external input devices (3)
Does not the sound of the audio signal input to HDMI-2
mode go out?
Checked whether to have selected “EXT4 (RGB)” “by the Audio
setup of the HDMI option.”
YESYES
Is there a audio input signal in pins (2/PC/HDMI_L) and (3/PC/HDMI_R) of HDMI-2/PC (J501)?
YES
Is there a audio input signal in pins (V30/PC/HDMI_L) and (V29/
PC/HDMI_R) of IC3302 (Digital AV decode & Main CPU) from
J501?
YES
Refer to “No sound output in all modes”.
No sound from external input devices (4)
NOCheck the line between J501 and IC3302.
Does not the sound of the audio signal input to PC mode go
out?
Checked whether to have selected “HDMI-2” “by the Audio setup
of the HDMI option.”
Check the setting of an external input device that connects with
HDMI-2/PC.
NO
Does not the sound of the audio signal input to EXT8 go out?
Is there a audio input signal in pins (5/CVBS_IN_L) and (4/
CVBS_IN_R) of EXT8 (J505)?
YES
Is there a audio input signal in pins (R28/CVBS_L) and (T28/
CVBS_R) of IC3302 (Digital AV decode & Main CPU) from J505?
YES
Refer to “No sound output in all modes”.
No sound from external input devices (5)
Does not the sound of the audio signal input to EXT4/5/6 (HDMI) go out?
Does not the picture/sound of the HDMI signal input to HDMI-1/2/3 go out?
NOCheck the setting of an external input device that connects with
EXT8.
4 – 4
The audio signal is not output (1)
No audio signal output from EXT1/EXT2 terminal.
Is there a audio input signal in pins (3/TUNER_OUT_L) and (1/
TUNER_OUT_R) of EXT1 (SC503)?
LC-52DH77E/RU/S
YESCheck the setting of an external input device that connects with
EXT1.
Is there a audio input signal in pins (3/MONITOR_L) and (2/
MONITOR_R) of EXT2 (SC502)?
NO
Is (AF11/SC1-MUTE) of IC3302 (Digital AV decode & Main CPU)
at H?
Is (AG11/SC2-MUTE) of IC3302 (Digital AV decode & Main CPU)
at H?
NO
Is there a audio output signal in pins (N27/TUNER_OUT_L) and
(N28/TUNER_OUT_R) of IC3302 (Digital AV decode & Main
CPU)?
Is there a audio output signal in pins (M30/MONITOR_L) and
(M29/MONITOR_R) of IC3302 (Digital AV decode & Main CPU)?
NO
Check IC3302 and its peripheral circuits.
The audio signal is not output (2)
No audio signal output from AUDIO_OUTPUT terminal.
Is audio signal (L/R) output to pins (2, 4) of AUDIO_OUTPUT terminal (J506)?
YESCheck the setting of an external input device that connects with
EXT2.
YESCheck the peripheral circuits of IC3302 and SC1-MUTE.
(Q502, D529 etc.)
YESCheck the peripheral circuits of IC3302 and SC2-MUTE.
(Q501, D528 etc.)
YESCheck the line between IC3302 and SC503.
YESCheck the line between IC3302 and SC502.
YESCheck the connection to AUDIO_OUTPUT terminal and external
input devices.
NO
MONITOR_MUTE signal [AF13/MONI_MUTE] of IC3302 (Digital
AV decode & Main CPU) or MUTE_A_ALL signal [21pin of
IC2002 (UCOM)] will be “H”?
NO
Is audio signal (L/R) input to pins [M29/MONITOR_R] [M30/
MONITOR_L] of IC3302?
NO
Check IC3302 and its peripheral circuits.
YESCheck the peripheral circuits of IC3302 and MUTE-A_ALL_LINE.
(D526, etc.)
YESCheck the line between IC3302 and J506.
(Q507, 508, Q509, D526)
4 – 5
LC-52DH77E/RU/S
The audio signal is not output (3)
No sound from HEADPHONE_OUTPUT terminal.
Is the HP_PLUG signal input to [H28/HP_PLUG] of IC3302
(Digital AV decode & Main CPU) from pin (6) of a
HEADPHONE_OUTPUT terminal (J504)?
YES
Is the audio signal output (HP_L/R) to pins (2, 3) of HEADPHONE terminal (J504)?
NO
Is HP-MUTE [AG13/HP_MUTE] of IC3302 at H?YESCheck the peripheral circuits of IC3302 (CPU) and HP-
NO
Is audio signal (HP_L/R) input to pins [M28/HP_L] [M27/HP_R] of
IC3302?
NO
Check IC3302 and its peripheral circuits.
NOCheck the line between J504 and IC3302.
YESCheck the HEADPHONE terminal (J504) and/or peripheral cir-
cuits.
MUTE_LINE. (D527,Q506, etc.)
YESCheck the line between IC3302 and J504.
The audio signal is not output (4)
No sound from DIGITAL AUDIO OUTPUT terminal.
Is the audio signal output to pin (1) of sound output terminal
(D520)?
NO
Do SPDIF_MUTE signal [F7/SPDIF_MUTE] of IC3302, MUTEA_ALL signal [2pin of IC2002 (UCON)] become H?
NO
Is an audio signal input to pin (3) of IC503, from [J28/OPT_OUT]
of IC3302 and is the logic signal input into pin (1) of IC503?
NO
Check IC3302 and its peripheral circuits.
YESCheck D520 and/or peripheral circuits.
YESCheck IC3302, IC2002, its circumference circuit and
Is the LVDS signal output from IC3302 (DIGITAL_AV_DECODER_&_MAIN_CPU_&_VIDEO PROCESSER) respectively?
TA1_P/M (AC25/AC26), TB1_P/M (AD25/AD26), TC1_P/M (AE25/AE26), TD1_P/M (AE24/AF24), TE1_P/M (AE23/AF23), TCLK1_P/M (AF25/
AF26), TA2_P/M (AE22/AF22), TB2_P/M (AE21/AF21), TC2_P/M (AE20/AF20), TD2_P/M (AE18/AF18), TE2_P/M (AE17/AF17), TCLK2_P/M
(AE19/AF19)
NO
Check IC3302 and its peripheral control circuits.
YES
Is the above-mentioned LVDS signal output to connector P2601?NOCheck the line between IC3302 and P2601.
YES
Similarly, is LCD controller's control signal normal?NOPlease check each control signal of L/R, U/D, HV_MODE,
PANEL_UNIT: YES
Is the LVDS signal input to connector LW of the panel module?NO NO Wire harness (LW) is checked.
(IC2002, IC3501, IC3502, X3302, etc.)
ROMSEL_0/1, TEMP3/2/1, OS_EN, SHIP_EN, and PE.
YES
Check the panel module.
No picture on the display (2)
Does not the picture come out when VHF/UHF is received?
Is the video signal (TUNER_CVBS) output from pin (6) of
TUNER (TU1101)?
YES
Is the video signal (TUNER_CVBS) sent to pin (AD29/
TU_CVBS) of IC3302 (Digital AV decode & Main CPU)?
YES
Refer to “The picture doesn't appear in all modes.”
No picture on the display (3)
Does not the picture come out when DTV is received?
Is IF signal output from pins (16, 17) of TU1101?NOCheck the tuner and its peripheral circuits.
NOCheck the tuner and its peripheral circuits.
Replace as required.
NOCheck the line between TU1101 and IC3302. (Q1106, etc.)
Replace as required.
YES
Is IF signal sent to pins (AA29/D__IF_P, AB29/D__IF_N) of
IC3302 (Digital AV decode & Main CPU)?
YES
Refer to “No sound output in all modes”
NOCheck the line between TU1101 and IC3302.
4 – 7
LC-52DH77E/RU/S
[External input EXT1, EXT2] No picture on the display (4)
Does not the picture of the CVBS signal input to EXT1 go out?
Does not the picture of the CVBS signal input to EXT2 go out?
Is CVBS signal sent to pin (20) of EXT1 (SC503)?NOCheck the setting of an external input device that connects with
EXT1.
Is CVBS signal sent to pin (20) of EXT2 (SC502)?NOCheck the setting of an external input device that connects with
EXT2.
YES
Is CVBS signal from EXT1 (SC503) sent to pin (AG29/
SC1_CVBS_Y) of IC3302 (Digital AV decode & Main CPU)?
NOCheck the line between SC503 and IC3302.
Is CVBS signal from EXT2 (SC502) sent to pin (AH30/
SC2_CVBS_Y) of IC3302 (Digital AV decode & Main CPU)?
YES
Refer to “The picture doesn't appear in all modes.”
[External input EXT1, EXT2] No picture on the display (5)
Does not the picture of the Y/C video signal input to EXT1 go out?
Does not the picture of the Y/C video signal input to EXT2 go out?
Is Y/C video signal sent to pins (20)/Y and (15)/C of EXT1
(SC503)?
Is Y/C video signal sent to pins (20)/Y and (15)/C of EXT2
(SC502)?
YES
Is Y/C signal from EXT1 (SC503) sent to pins (AG29/
SC1_CVBS_Y) and (AG28/SC1_C1) of IC3302 (Digital AV
decode & Main CPU)?
Is Y/C signal from EXT2 (SC502) sent to pins (AH30/
SC2_CVBS_Y) and (AH29/SC2_C2) of IC3302 (Digital AV
decode & Main CPU)?
NOCheck the line between SC502 and IC3302.
NOCheck the setting of an external input device that connects with
EXT1.
NOCheck the setting of an external input device that connects with
EXT2.
NOCheck the line between SC503 and IC3302.
NOCheck the line between SC502 and IC3302.
YES
Refer to “The picture doesn’t appear in all modes.”
[External input EXT1] No picture on the display (6)
Does not the picture of the R/G/B signal input to EXT1 go out?
Is RGB1 signal sent to pins (15)/R1, (11)/G1 and (7)/B1 of EXT1
(SC503)?
YES
Is RGB1 signal from EXT1 (SC503) sent to pins (AH22/RED1),
(AJ22/GREEN_1) and (AJ21/BLUE_1) of IC3302 (Digital AV
decode & Main CPU)?
YES
Refer to “The picture doesn’t appear in all modes.”
NOCheck the setting of an external input device that connects with
EXT1.
NOCheck the line between SC503 and IC3302.
4 – 8
[External input EXT3] No picture on the display (7)
Does not the picture of the component video signal input to EXT3 go out?
Is a COMPONENT video signal input to pins (3)/Y, (5)/Pb, (7)/Pr
of EXT3 (J503)?
YES
Is COMP_PLUG detection signal to (AF7/COMP_PLUG) of
IC3302 (Digital AV decode & Main CPU) input from pin (2) of
EXT3 (J503)?
YES
Is COMPONENT signal sent to pins (AJ18/COMP__Y), (AJ19/
COMP__Pb) and (AH19/COMP__Pr) of IC3302?
YES
Refer to “The picture doesn't appear in all modes.”
[External input EXT4] No picture on the display (8)
Does not the picture of the DVI (ANALOG) video signal input to EXT4 (15pin-D-SUB terminal) go out?
NOCheck the setting of an external input device that connects with
EXT3.
NOCheck the line between IC3302 and J503.
NOCheck the line between IC3302 and J503.
LC-52DH77E/RU/S
Are the video signal and the synchronized signal input from pins
(1, 2, 3)/(R, G, B), (14 and 13)/(V, H.Sync) of EXT4 (SC501)?
YES
Are the video signal and the synchronized signal input from pins
(AK17/PC__R) (AK16/PC__G) (AH15/PC__B) and (AK14/
PC_HSYNC) (AJ14/PC_VSYNC) of IC3302 (Digital AV decode &
Main CPU)?
YES
Refer to “The picture doesn't appear in all modes.”
[External input EXT8] No picture on the display (9)
Does not the picture of the CVBS signal input to EXT8 go out?
Is a CVBS signal input to pin (6) of EXT8 (J505)?NOCheck the setting of an external input device that connects with
YES
Is V3_PLUG detection signal input to pin (AJ1/CVBS_PLUG) of
IC3302 (Digital AV decode & Main CPU) from pin (7) of EXT8
(J505)?
NOCheck the connection and setup with the external DVI devices.
NOCheck the line between SC501 and IC3302.
EXT8.
NOCheck the line between J505 and IC3302.
YES
Is CVBS signal sent to pin (AE29/CVBS__IN) of IC3302?NOCheck the line between J505 and IC3302.
YES
Refer to “The picture doesn't appear in all modes.”
4 – 9
LC-52DH77E/RU/S
[External input HDMI-1/2/3] No picture on the display (10)
Does not the picture/sound of the HDMI signal input to HDMI-1/2/3 go out?
Is the Hot plug detection function output from pin (19) of the
HDMI-1 (SC1502) normal?
NOCheck the line between SC1502 and pin (31) of IC1504 (HDMI-
SW).
Is the Hot plug detection function output from pin (19) of the
HDMI-2 (SC1503) normal?
Is the Hot plug detection function output from pin (19) of the
HDMI-3 (SC1501) normal?
YES
Is EDID data pins (30/HDMI1_SCL), (29/HDMI1_SDA) of IC1504
accessed, and is it read from pins (15, 16) of a HDMI-1
(SC1502)?
Is EDID data pins (34/HDMI2_SCL), (33/HDMI2_SDA) of IC1504
accessed, and is it read from pins (15, 16) of a HDMI-2
(SC1501)?
Is EDID data pins (40/HDMI3_SCL), (39/HDMI3_SDA) of IC1504
accessed, and is it read from pins (15, 16) of a HDMI-3
(SC1501)?
YES
Is TMDS signal input into pins (66, 65/HDMI1_CLKP/N), (68, 67/
HDMI1_D0P/N), (70, 69/HDMI1_D1P/N), (72, 71/HDMI1_D2P/N)
of IC1504 from HDMI-1 (SC1502)?
Is TMDS signal input into pins (2, 1/HDMI2_CLKP/N), (4, 3/
HDMI2_D0P/N), (6, 5/HDMI2_D1P/N), (8, 7/HDMI2_D2P/N) of
IC1504 from HDMI-1 (SC1503)?
Is TMDS signal input into pins (12, 11/HDMI3_CLKP/N), (14, 13/
HDMI3_D0P/N), (16, 15/HDMI3_D1P/N), (18, 17/HDMI1_D2P/N)
of IC1504 from HDMI-1 (SC1501)?
NOCheck the line between SC1503 and pin (35) of IC1504 (HDMI-
SW).
NOCheck the line between SC1501 and pin (41) of IC1504 (HDMI-
SW).
NO
Check the setting of an external input device that connects with
HDMI-1/2/3.
NOIs access possible in the exchange of IC1504?
NO
Check the peripheral circuit of SC1501, SC1502, SC1503,
IC1504.
NOCheck the line between HDMI-1 (SC1502) and IC1504.
NOCheck the line between HDMI-2 (SC1503) and IC1504.
NOCheck the line between HDMI-3 (SC1501) and IC1504.
YES
Are TMDS_Rx and the I2C_SINK signal output from IC1504
respectively?
YES
Is the TMDS_Rx/ I2C_SINK signal input to IC3302 (Digital AV
decode & Main CPU)?
Pins (AK6, AJ6/SW_TMDS_CLKP/N), (AK7, AJ7/
SW_TMDS_D0P/N), (AK8, AJ8/SW_TMDS_D1P), (AK9, AJ9/
SW_TMDS_D2P) from IC1504
YES
Refer to “The picture doesn't appear in all modes.” or “No sound
output in all modes.”
NOCheck the IC1504 and peripheral circuits.
NOCheck the line between IC1504 and IC3302.
4 – 10
<During external connection> No picture on the monitor (1)
No picture appears on EXT1/EXT2 connected monitor during the VHF/UHF reception.
Is CVBS signal output into pin (19) of EXT1 (SC503) from pin
(67) of IC504 (TUNER OUT)?
YESCheck the setting of an external input device that connects with
EXT1.
LC-52DH77E/RU/S
Is CVBS signal output into pin (19) of EXT2 (SC502) from pin
(65) of IC508 (MONITOR OUT)?
NO
Is CVBS signal input to pin (6) of IC504 from pin (2) of IC507
(MUX)?
Is CVBS signal input to pin (1) of IC508 from pin (AJ24/
CVBS_MONI_OUT) of IC3302 (Digital AV decode & Main CPU)?
NO
Is TUNER_CVBS signal input to pin (6) of IC507 from TUNER
(TU1101)?
Is TUNER_CVBS signal input to pin (AD29/TU_CVBS) of IC3302
from TUNER (TU1101)?
NO
Is TUNER_CVBS signal output from pin (6) of TUNRE
(TU1101)?
NO
Whether the TUNER circuit operates correctly is checked.
YESCheck the setting of an external input device that connects with
EXT2.
YESCheck the IC504 and their peripheral circuits.
YESCheck the IC508 and their peripheral circuits.
YESCheck the IC507 and their peripheral circuits (IC3302).
YESCheck the IC3302 and their peripheral circuits.
YESCheck the line between TU1101 and their peripheral circuits
(Q1106).
4 – 11
LC-52DH77E/RU/S
<During external connection> No picture on the monitor (2)
No picture appears on EXT1/EXT2 connected monitor during the DTV reception.
Is CVBS signal output into pin (19) of EXT1 (SC503) from pin
(67) of IC504 (TUNER OUT)?
YESCheck the setting of an external input device that connects with
EXT1.
Is CVBS signal output into pin (19) of EXT2 (SC502) from pin
(65) of IC508 (MONITOR OUT)?
NO
Is CVBS signal output into pin (1) of IC508 from pin (AJ24/
CVBS_MONI_OUT) of IC3302 (Digital AV decode & Main CPU)?
Is CVBS signal input to pin (6) of IC504 from pin (2) of
IC507 (MUX)?
NO
Is TUNER_CVBS signal input to pin (4) of IC507 from
pin (AK24/CVBS_TU_OUT) of IC3302 (Digital AV
decode & Main CPU)?
NO
Is IF signal sent to pins (AA29/D__IF_P, AB29/D__IF_N) of
IC3302 (Digital AV decode & Main CPU)?
Is IF signal output from pins (16, 17) of TU1101?YESCheck the line between TU1101 and IC3302.
Whether the TUNER circuit operates correctly is checked.
NO
NO
NO
YESCheck the setting of an external input device that connects with
EXT2.
YESCheck the IC508 and their peripheral circuits.
YESCheck the IC504 and their peripheral circuits.
YESCheck the IC507 and their peripheral circuits.
YESCheck the IC3302 and their peripheral circuits.
<During external connection> No picture on the monitor (3)
No picture from EXT1 appears on EXT2-connected monitor.
Is CVBS signal output into pin (19) of EXT2 (SC502)?YESCheck the setting of an external input device that connects with
NO
Is CVBS signal input to pin (1) of IC508 from pin (AJ24/
CVBS_MONI_OUT) of IC3302 (Digital AV decode & Main CPU)?
NO
Is CVBS signal sent to pin (AG29/SC1_CVBS/Y) of IC3302 (Digital AV decode & Main CPU) from EXT1 (SC503)?
NO
Is CVBS signal sent to pin (20) of EXT1 (SC503)?YESCheck the line between EXT1 (SC503) and IC3302.
NO
Check the setting of an external input device that connects with
EXT1.
YESCheck the IC508 and their peripheral circuits.
YESCheck the IC3302 and their peripheral circuits.
EXT2.
4 – 12
LC-52DH77E/RU/S
<During external connection> No picture on the monitor (4)
No picture from EXT8 appears on EXT2- connected monitor.
Is CVBS signal output into pin (19) of EXT2 (SC502)?YESCheck the setting of an external input device that connects with
EXT2.
NO
Is CVBS signal input to pin (1) of IC508 from pin (AJ24/
CVBS_MONI_OUT) of IC3302 (Digital AV decode & Main CPU)?
NO
Is CVBS signal input to pin (AE29/CVBS__IN) of IC3302 from
J505?
NO
Is CVBS signal sent to pin (6) of EXT8 (J505)?YESCheck the line between EXT8 (J505) and IC3302.
NO
Is V3_PLUG detection signal input to pin (AJ11/CVBS/PLUG) of
IC3302 from pin (7) of EXT8 (J505)?
YESCheck the IC508 and their peripheral circuits.
YESCheck the IC3302 and their peripheral circuits.
YESCheck the line between EXT8 (J505) and IC3302.
NO
Check the setting of an external input device that connects with
EXT8.
4 – 13
LC-52DH77E/RU/S
300ms
[2] LED flashing specification at the time of the error
Display method
• Refer to Table 1.
• Make the OPC LED flash using the [MENU] key on the remote control since the display for service persons is identified by the number of flashings
(once to 5 times).
Even if the [MENU] key is pressed again, it does not return to the display for customers (only the power LED flashes).
• After recovering from an error, if the same error cannot be generated again, refer to MONITOR ERR CAUSE on the adjustment process screen.
LED flashing method
• Synchronize the phases of the power LED and OPC LED.
• If the LEDs have different number of flashings, adjust the flashing cycle to that where the LED flashes more times.
<Flashing example for customers>
Power
1500ms
300ms
300ms
Power
<Flashing example for service persons>
OPC
(Displayed by the
specific operation)
1500ms
300ms
Table 1. Concrete flashing pattern
Item
Inverter/Lamp system failureRed flashes onceOffRed flashes onceFlashes onceLamp error
Power PWB failure (Power
failure, etc.)
Main PWB failureGreen flashes onceOffGreen flashes onceFlashes onceInitial communication error
(Communication failure, etc.)Flashes twiceStart-up confirmation commu-
Flashes 3 timesRegular communication error
Flashes 5 timesOther communication error
Flashes twiceSync error
Flashes 3 timesNotification from the main
OffGreen/Red flash
alternately
OffGreen/Red flash
alternately
OffVersion upgrade failed
OffStart-up after failing version
Cause
nication error
microprocessor (*1)
connector unplugged
upgrade (*2)
4 – 14
MONITOR ERR STBY table
LC-52DH77E/RU/S
Outline:Communication/Power failure detected by the monitor microprocessor (IC2003) is stored on EEPROM, states can be confirmed in
Location: Page 1/16 of the adjustment process mode: MONITOR ERR CAUSE “0” if there is no error. It is cleared to 0 on the last page of the
Display Error description
0CCommunication error C Ending sequence time-out
0DCommunication error D Preset start-up time-out during completion
1DPower supply error 1 PS_ON (AC_DET) failure
the adjustment process mode.
adjustment process mode.
02Start-up communication error 2 Initial communication from the main CPU is not received.
03Start-up communication error 3 Only the initial communication is received.
04Start-up communication error 4Until panel information request reception
05Start-up communication error 5Until initialization completion reception
06Start-up communication error 6Until version notification transmission
07Start-up communication error 7Until start-up information notification transmission
08Start-up communication error 8Until start-up information response reception
09Start-up communication error 9Until time-out setting reception
0ACommunication error A REQ time-out
0BCommunication error B Restart time-out during the beginning of time acquisition start-up
0ECommunication error E Download start-up time-out
0FCommunication error F Time acquisition time-out
11 Communication error HRegular communication time-out
16Panel-related error Lamp failure
1AOther error 2 Monitor temperature failure
1EPower supply error 2 D_POW (DET_12V) failure
1FPower supply error 3 D_POW (DET_D3V3) failure
21Power supply error 5 Panel power failure
23Other error 3 Error standby request from the main CPU
LED flashing timing chart at the time of the error
1) Power LED
Error typePower LED operation (1 cycle)Note: Pins are monitor microprocessor pins (IC2003).
Inverter/Lamp failure
Red flashes once
Power failure
Red flashes twice
Communication
failure with main
CPU
Green flashes once
Others
Green flashes twice
H: Red onRefer to “Inverter/Lamp failure details”. OPC_LED flashes by pressing the
L: Off
H: Red onRefer to “Power failure details”. OPC_LED flashes by pressing the [MENU]
300m
s
L: Off
H: Green onRefer to “Communication failure details”. OPC_LED flashes by pressing
L: Off
H: Green onRefer to “Other failure details”. OPC_LED flashes by pressing the [MENU]
L: Off
1.5sec
[MENU] key on the remote control.
key on the remote control.
the [MENU] key on the remote control.
Communication line failure or main CPU communication failure.
key on the remote control.
4 – 15
LC-52DH77E/RU/S
2) Inverter/Lamp failure details (Power red LED flashes once and OPC (preset) LED flashes)
Error typeOPC (preset) LED operation (1 cycle)Note: Pins are monitor microprocessor pins unless otherwise specified (IC2002).
H: OnERR_PNL (40pin): Abnormal L. Confirmed after 5 consecutive detections at 1 second
intervals (detected only when the backlight is on).
Note that after five detection counts, the lamp cannot be activated except in the moniLamp failure
Flashes once
3) Power failure details (Power red LED flashes twice and OPC (preset) LED flashes)
Error typeOPC (preset) LED operation (1 cycle)Note: Pins are monitor microprocessor pins unless otherwise specified (IC2002).
PS_ON
AC_DET failure Flashes
once
D_POW
Main 12V
failure
Flashes twice
D_POW
Digital 3.3V
Failure
Flashes 3
times
L: Off
H: OnAC_DET (72pin: Abnormal (L).
L: Off
H: OnDET_12V (34pin): Abnormal (L). Main 12V is not applied.
L: OffIf error is detected during start-up or operation, the power is turned on again by polling.
H: OnDET_D3V3 (35pin): abnormal (L). Digital 3.3V is not applied.
L: OffIf error is detected during start-up or operation, the power is turned on again by polling.
toring process. (For the first time, only the inverter is reset, and error OFF is not acti-
vated.)
Accumulated counts are cleared to 0 when the setting in the adjustment process is
made, when AC_ON is performed with [CH_DOWN] and [VOL_UP] on the unit down
or after continuous illumination for 3 minutes.
If error is detected during start-up or operation, the power is turned on again by interrupt handling (instantaneous blackout processing).
4) Communication failure details (Power green LED flashes once and OPC (preset) LED flashes)
Error typeOPC (preset) LED operation (1 cycle)Note: Basically, debug print logs are analyzed or communication logs
are analyzed by a bus monitor.
Initial communication reception
failure Flashes
once
5) Other failure details (Power green LED flashes twice and OPC (preset) LED flashes)
Error typeOPC (preset) LED operation (1 cycle)Note: Pins are monitor microprocessor pins unless otherwise specified
Monitor temperature failure
Flashes once
Main failure
Flashes 3 times
H: OnInitial communication from the main CPU is not received. (Request for the
monitor model No. is not received.)
→ Communication line failure or main CPU start-up failure
L: Off
H: OnStart-up reason confirmation from the main CPU cannot be received. (Start-
L: Off
H: OnRegular communication that is performed at 1 second intervals in the nor-
L: Off
H: OnWhen a request (PM_REQ=H) is sent from the main microprocessor, the
L: Off
(IC2002).
H: OnIf the panel temperature is 60°C or more for 15 seconds or more in a row, CAUTION
appears on the OSD (flashes in red in the lower right screen).
If the panel temperature is 60°C or more for 25 seconds or more in a row, error
standby is activated.
L: Off
H: OnMain microprocessor detection error (CPU temperature error, etc.)
(MONITOR MAX TEMP on page 13/16 of the adjustment process: Change of temperature failure AD value): Thermistor
Details are displayed on page 1/16 of the adjustment process for the main microprocessor.
up communication until start-up reason notification command is not
received.)
→ Main CPU start-up failure or monitor microprocessor reception failure
mal operation is interrupted.
→ Main CPU operation failure or monitor microprocessor reception failure
request command is not output from the main CPU, etc.
→ Main CPU operation failure or monitor microprocessor reception failure
1. The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 220-240V.
Signals are fed by a colour bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.
INDICATION OF RESISTOR & CAPACITOR:
RESISTOR
1. The unit of resistance “Ω” is omitted.
(K=kΩ=1000 Ω, 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.
Service Manual
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.
7 – 1
[2] SCHEMATIC DIAGRAM
LC-52DH77E/RU/S
MAIN Unit-1
J
I
H
G
AND SHADED COMPONENTS=SAFETY RELATED PARTS
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 2
LC-52DH77E/RU/S
MAIN Unit-2
J
I
H
G
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 3
MAIN Unit-3
J
I
H
G
LC-52DH77E/RU/S
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 4
LC-52DH77E/RU/S
MAIN Unit-4
J
I
H
G
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 5
MAIN Unit-5
J
I
H
G
LC-52DH77E/RU/S
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 6
LC-52DH77E/RU/S
MAIN Unit-6
J
I
H
G
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 7
MAIN Unit-7
J
I
H
G
LC-52DH77E/RU/S
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 8
LC-52DH77E/RU/S
MAIN Unit-8
J
I
H
G
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 9
MAIN Unit-9
J
I
H
G
LC-52DH77E/RU/S
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 10
LC-52DH77E/RU/S
MAIN Unit-10
J
I
H
G
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 11
MAIN Unit-11
J
I
H
G
LC-52DH77E/RU/S
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
7 – 12
LC-52DH77E/RU/S
LED Unit
J
I
H
G
F
To MAINRA
BU+3.3V
OPC+3.3V
GND
R/C
POWG_LED
POWR_LED
LED_OPC
OPC
LED_YOYAKU
LED_5V
NA330WJ
P102
LED
DUNTKF096WE
RMC101
UA053WJ
IR RECEIVER MODULE
OUT2GND3VCC
1
R106
22K
1
2
3
4
5
6
7
8
9
R107
39K
D103
PX0421CE
TV POW
1
2
G/B
3
R
4
R116
27K
R114
160
R115
820
Q105
2SC3928AR
LED CONT
Q104
2SC3928AR
LED CONT
0.2
2.3
R120
C103
0.7
0
0
0
100u
16V
ASY
100
D104
EXA092WJ
12V
10
0
0
Q103
2SC3928AR
LED CONT
R110
10K
0.7
3.3
C104
2.2u
16V
TVF
SLD101
PSLDPA076WJFW
E
C101
0.01u
D
R113
0
C
OPC
B
R103
160
2.5
Q102
2SC3928AR
LED DRIVER
A
0
R105
10K
0
2
1
4
3
D102
PX0421CE
G
1
3
2
4
3.3
1
4
GND
VCC
IC101
GA1S100W
OPC
Io
GND
3
2
C102
10u
16V
ASX
1
23
8
1097654
131119181615141217
7 – 13
KEY Unit
LC-52DH77E/RU/S
J
I
CH-UP
S151
K0003AJ
H
3.3
G
P151
NA059WJ
0.0
TO LCD CONTKM
F
KEY1
KEY2
STBY_POW
E
NC
GND
1
2
3
4
5
D151
EX0646GE
R151
8.2K
1/8W
D155
EX0646GE
3.3
0.0
CH-DOWN
S152
K0003AJ
R152
12K
1/8W
POW
S157
K0003AJ
INPUT
S153
K0003AJ
3.3
0.0
KEY
D152
EX0646GE
VOL-UP
S154
K0003AJ
R153
8.2K
1/8W
VOL-DOWN
S155
K0003AJ
MENU
S156
K0003AJ
R154
12K
1/8W
D
C
KEY UNIT
DUNTKE266WE01
(QPWBFE266WJ)
B
A
1
23
8
1097654
131119181615141217
7 – 14
LC-52DH77E/RU/S
— M E M O —
7 – 15
PartsGuide
LC-52DH77E/RU/S
PARTS GUIDE
No. S49Z2LC52D77E
LCD COLOUR TELEVISION
MODELS
[1]PRINTED WIRING BOARD
ASSEMBLIES
[2]LCD PANEL
[3]DUNTKF190FM01 (MAIN Unit)
[4]DUNTKF096FM04 (LED Unit)
[5]DUNTKE266FM17 (KEY Unit)
LC-52DH77E/RU/S
CONTENTS
[6]CABINET AND MECHANICAL
PARTS
[7]LCD PANEL MODULE Assembly
[8]SUPPLIED ACCESSORIES
[9]PACKING PARTS
(NOT REPLACEMENT ITEM)
[10] SERVICE JIGS
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.
LC-52DH77E/RU/S
NO.PARTS CODE
PRICE
RANK
[1] PRINTED WIRING BOARD ASSEMBLIES
N DUNTKF190FM01NPMAIN Unit
N DUNTKF096FM04NPLED Unit
N DUNTKE266FM17NPKEY Unit
!
!
N RDENCA308WJQZBRPPOWER Unit (Unit Replacement Item)
N CPWBX4151TPXZJC-PWB (LCD Control Unit)
N RUNTKA528WJZZBFJInverter Unit-1
N RUNTKA529WJZZBFJInverter Unit-2
N RUNTKA530WJZZAPJGND-PWB (INVERTER GND Unit-1)
N RUNTKA531WJZZAPJGND-PWB (INVERTER GND Unit-2)
1 CCABAC210WJ03BRNPFront Cabinet Ass'y
1-1 Not Available--Front Cabinet
1-2 Not Available--Bottom Dec Ass'y
1-2-1 Not Available-N-Bottom Dec (A) Ass'y
1-2-2 Not Available-N-Bottom Dec (B) Ass'y
1-2-3 XEBSN40P10000ABJScrew, x6 (DEC-A/B FIX)
1-2-4 HDECSA051WJ1AASNJShine Trim
1-3 Not Available--LED Decoration
1-4 XEBSN40P10000ABJScrew, x8 (CAB-A - DEC FIX)
2 CCABBB418WJ03BPNPBack Cabinet Ass'y
2-1 Not Available--Back Cabinet
2-2 Not Available--Terminal Label
3 CCOVAC952WJ04ALNPControl Cover Ass'y
3-1 Not Available--Control Cover
3-2 Not Available--Control Label
4 CANGKC100WJ01ANPVesa Angle Top Ass'y, x2
4-1 Not Available-N-Base Angle Top
4-2 Not Available-N-Vesa Angle
4-3 XHPS730P06WS0AAJScrew
5 CANGKC101WJ01ARPVesa Angle Bottom Ass'y, x2
5-1 Not Available-N-Base Angle Bottom
5-2 Not Available-N-Vesa Angle
5-3 XHPS730P06WS0AAJScrew
6 CCOVAD246WJ02AMPSide AV Cover Ass'y
6-1 Not Available-N-Side AV Cover
6-2 Not Available--Side AV Label
X1 CDAi-A526WJ12BPNPStand Unit
X1-1 Not Available--Support
X1-2 Not Available-N-Stand Base
X1-3 Not Available-N-Screw Ass'y
X1-4 Not Available-N-Tool for Stand
X2 LHLDWA173WJKZAEJCable Clamp
!
!
X3 QACCKA047WJPZAHNPAC Cord (except U.K. and Ireland)
X3 QACCBA054WJPZANJAC Cord (for U.K. and Ireland)
X4 RRMCGA771WJSAAUPRemote Control Unit
X5 TCAUSA034WJZZAAPCoution Sheet (for East Europe)
X6 TCAUZA222WJN1ABPClass A Caution (for Europe)
X7 TCAUZA356WJN1AAPClass A 22Language Caution
X8 TiNS-D908WJN2AMNPOperation Manual (for Europe except East Europe)
X9 TiNS-D910WJN2AQNPOperation Manual (for East Europe)
X10 TiNS-D909WJN2AMNPOperation Manual (for Northern Europe)
X11 TiNS-D911WJN2AFNPOperation Manual (for Russia)
X12 Not Available--"AAA" Size Battery
X13 TGAN-B078WJZZABPWarranty Card (for East Europe)
X14 TGAN-A077WJZZAEJWarranty Card (for Russia)
X15 TGAN-A801WJZZACPWarranty Card (for U.K. and Ireland)
X16 TGAN-B079WJZZABPWarranty Coupon (for East Europe)
X17 TGAN-A802WJZZABPAquos Card Plan (for U.K. and Ireland)
X3X1
X2
X1-1, X1-2,X1-3, X1-4
X12
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
DESCRIPTION
20
[9] PACKING PARTS (NOT REPLACEMENT ITEM)
LC-52DH77E/RU/S
S9
S14
S10
S11
S3
S4
S5
S6
S7
S8
S15
S10
S13
S1
S12
S10
S2
S10
S16
S17
21
LC-52DH77E/RU/S
NO.PARTS CODE
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
[9] PACKING PARTS (NOT REPLACEMENT ITEM)
S1 SPAKCE924WJZZ-N-Packing Case
S2 SPAKCD539WJZZ--Packing Case (Bottom)
S3 SPAKAA374WJZZ--Cover Sheet
S4 SPAKFB706WJZZ--Stand Case
S5 SPAKFB716WJZZ--Paper Cover
S6 SPAKFB824WJZZ-N-Stand Pad
S7 SPAKPA780WJZZ--Mirror Mat Base
S8 SPAKPA904WJZZ--Mirror Mat Sup
S9 SPAKPB043WJZZ--Polyethylene Bag
S10 SPAKXC282WJZZ--Buffer material (Top/Bottom)
S11 SPAKXC283WJZZ--Buffer material (Top Center)
S12 SPAKXC284WJZZ--Buffer material (Bottom Center)
S13 SSAKAA009WJZZ--Polyethylene Bag
S14 SSAKAA111WJZZ--Polyethylene Bag
S15 SSAKHA052WJZZ-N-Screw Case
S16 TLABM5584BMZZ--Case No Label
S17 TLABZC194WJZZ--EU ECO Label (for Europe)
[10] SERVICE JIGS
N QCNW-G616WJQZBKJConnecting Cord Main-LCD Control (LW)
N QCNW-H347WJQZAYJConnecting Cord Main-LCD Control (LP)
N QCNW-H348WJQZAWJConnecting Cord Main-LED (RA)
N QCNW-G440WJQZAPJConnecting Cord Main-KEY (KM)
N QCNW-H184WJQZAXJConnecting Cord Main-Power (PD)
N QCNW-G625WJQZAPJConnecting Cord Main-Power (PL)
N QCNW-J104WJQZASJConnecting Cord Main-Power (LB1)
N QCNW-J105WJQZASJConnecting Cord Power-Inverter (LB2)
N QCNW-J106WJQZAMJConnecting Cord Power-Inverter (LA)
No Part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any from or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
May. 2009
TQ2743-S SH. DS
SHARP CORPORATION
AV Systems Group
CS Promotion Center
Yaita,Tochigi 329-2193, Japan
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.