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.
CONTENTS
» IMPORTANT SERVICE SAFETY PRECAUTION.......................................................................................2
» PARTS LIST..............................................................................................................................................89
» PACKING OF THE SET......................................................................................................................... 125
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow:
IMPORTANT SERVICE SAFETY PRECAUTION
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.
F701 (3.15A, 250V), F702 (3.15A, 250V), F703 (2A,
250V), F705 (1A, DC450V), F706 (5A, 250V), F707
(5A, 250V)
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks:
1. 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.
2. 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.
3. 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 50k 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.
» Use an AC voltmeter having with 5000 ohm per volt,
or higher, sensitivity or measure the AC voltage drop
across the resistor.
» Connect the resistor connection to all exposed metal
parts having a return to the chassis (antenna, metal
cabinet, screw heads, knobs and control shafts,
escutcheon, etc.) and measure the AC voltage drop
across the resistor.
All checks must be repeated with the AC cord plug
connection reversed. (If necessary, a nonpolarized
adaptor plug must be used only for the purpose of
completing these checks.)
Any reading of 0.75 Vrms (this corresponds to 0.5
mA rms AC.) or more is excessive and indicates a
potential shock hazard which must be corrected
before returning the monitor to the owner.
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 " å"
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.
2
LC-26GA5H/M/X
Precautions for using lead-free solder
1 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:
LFa
Indicates lead-free solder of tin, silver and copper.
2 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.
3 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.
Lead-free wire solder for servicing
Part No,★DescriptionCode
ZHNDAi123250EJφ0.3mm250g(1roll)BL
ZHNDAi126500EJφ0.6mm500g(1roll)BK
ZHNDAi12801KEJφ1.0mm1kg(1roll)BM
3
LC-26GA5H/M/X
SPECIFICATIONS
Item
Model
LCD panel26" (65 cm) Advanced Super View & BLACK TFT LCD
Number of dots3,147,264 dots (1366 768 3 dots)
Video Colour SystemPAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV
Function
Brightness450 cd/m
Viewing anglesH : 170° V : 170°
Audio amplifier10W 2×
SpeakersØ 8 cm 2pcs, Ø 2.5 cm 2pcs
Terminals
OSD languageEnglish/Chinese (LC-26GA5H )
Power RequirementAC 110–240 V, 50 Hz
Power Consumption112 W (0.4 W Standby) (Method IEC60107) (LC-26GA5H)
Weight
AccessoriesRemote control unit, “AAA” size battery ( 2), AC cord, Cable clamp ( 2), Operation
TV-Standard (CCIR)
Receiving
Channel
TV-Tuning SystemAuto Preset 99 ch (LC-26GA5H)
STEREO/BILINGUALNICAM: B/G, I, D/K A2 stereo: B/G
VHF/UHF44.25-863.25 MHz
CATV
Rear
ANTENNA IN
INPUT 1
INPUT 2
INPUT 3VIDEO in, AUDIO in, COMPONENT in
AV OUTPUTS-VIDEO out, VIDEO out, AUDIO out (Variable, Fixed)
RS-232CD-sub 9pin male connector
Headphones
Front
LC-26GA5H/M/X
××
PAL: B/G, D/K, I, PAL-60 SECAM: B/G, D/K, K/K
Hyper-band, S1–S41ch
Auto Preset 99 ch, Auto Lable, Auto Sort (LC-26GA5M/X)
2
UHF/VHF 75 Din type
VIDEO in, AUDIO in, COMPONENT in
VIDEO in, AUDIO in, S-VIDEO in
Ø 3.5mm jack (Audio output)
English/Chinese/Arabic (LC-26GA5M/X)
112 W (0.6 W Standby) (Method IEC60107) (LC-26GA5M/X)
13.0 kg (without stand)
16.5 kg (with stand)
manual, Antenna cable (LC-26GA5X)
×
1
NTSC: M
××
Specifications are subject to change without prior notice.
4
Part names
TV (Front)
POWER indicator
OPC sensor
POWER (On/Off) button
TV/VIDEO button
Volume up (+)/down (
–) buttons
Channel up ( )/down ( ) buttons
Remote control sensor
*OPC: Optical Picture Control
SLEEP timer indicator
OPC indicator*
Headphone jack
* Press RESET if the TV cannot return to its original state after performing various operations.
This will reset the TV as shown below.
• AV MODE resets to USER.
• TV channel resets to channel 1.
• Dual screen resets to normal.
• Audio setting initialises.
• Dolby Virtual resets to Off.
**Press SYSTEM RESET if the TV does not operate after starting up.
NOTE
• Pressing RESET will not work if the TV is in standby mode (indicator lights red).
• Pressing RESET will not delete channel preset and password.
• Image position is initialised.
• Still image mode deactivates.
• Audio Out setting resets to Fixed.
• Audio Only setting resets to Off.
TV (Rear)
RESET*
INPUT 2 terminals
SYSTEM RESET**
Antenna input terminal
AC INPUT terminal
RS-232C terminal
INPUT 3 terminals
INPUT 1 terminals
AV OUTPUT
terminals
OPERATION MANUAL
LC-26GA5H/M/X
5
LC-26GA5H/M/X
Part names
12
8
9
3
4
6
11
7
18
14
15
16
17
19
12
10
20
21
1323
22
5
NOTE
• When using the remote control unit, point it at the TV.
Remote control unit
1POWER (STANDBY/ON)
To switch the power on and off.
2OPC
To switch the Optical Picture Control on and off.
3P&P
Set the dual picture mode. Press P&P again to return to normal view.
SELECT
To select either screen to be active in Dual screen mode.
4WIDE
Change the wide image mode.
5ROTATE
Rotates the display in every direction.
6FREEZE
Change the still image mode.
7
Virtual
Select Virtual Dolby Surround settings.
80 – 9
Set the channel.
9 (Flashback)
Press to return to the previous image in normal viewing mode.
10MPX
Select the sound multiplex mode.
11VOL /VOL
Set the volume.
12 (MUTE)
Mute the sound.
13EXIT
Turn off the On Screen Display.
14SLEEP
Set the Sleep timer.
15DISPLAY
Display the programme information.
16AV MODE
Select a video setting: AV MODE (ST ANDARD, MOVIE, GAME, USER,
The adjustment values are set to the optimum conditions at the factory before shipping. If a value should
become improper or an adjustment is required due to part replacement, make an adjustment according to the
following procedure.
1. After replacement of any PWB unit and/or IC for repair, please note the following.
When replacing the following units, make sure to prepare the new units loaded with updated software.
LCD CONTROL unit: DUNTKC807FEB7 (LC-26GA5M)
Caution: Never "POWER OFF" the unit when software upgrade is ongoing.
Otherwise the system may be damaged beyond recovery.
2-1 Software version upgrade
The model employs the following software.
» Main software
» Monitor microprocessor software
The main software and the monitor microprocessor software can be upgraded by using a general-purpose SD
memory card.
The followings are the procedures for upgrading, explained separately for each of the main software, the
monitor microprocessor software.
2-2 Main software version upgrade
Get ready before you start
» SD memory card of 8MB or higher capacity
» PC running on Windows 98/98SE/ME/2000/XP operating system
» SD memory card formatting software
(Downloadable at http://panasonic.co.jp/pavc/global/cs/sd/download/sd_formatter.html)
15
LC-26GA5H/M/X
Preparations
To upgrade the main software, it is necessary to get ready the SD card for version upgrade before you start.
Follow the steps below and create the SD card for version upgrade.
1 Insert the SD card into the SD card reader/writer. Start the SD card formatting software. Click [Format].
(When you have the drive options, select the drive where the SD card is inserted before you proceed.)
2 When the formatting is over, the following window appears. Click [OK].
3 Click [Exit] to finish the formatting.
Note: When you are done, take out the SD card once to make sure it is finished, and then insert it again.
4 Copy the binary image file KA1UAxxx.SDC (named temporarily) for version upgrade to the root directory
(folder) of the SD card drive.
Note: In the SD card drive, do not store other folders or unrelated files, or more than one binary image files for
version upgrade.
Now the SD card for version upgrade is ready.
16
LC-26GA5H/M/X
How to upgrade the software
1 Shut off the AC power (i.e. unplug the AC cord).
2 Insert the SD card for version upgrade (prepared as above) into the service socket located below left of the
right side cooling fan in the rear of the unit, in a way that the cut corner of the SD card comes at the righthand side.
Note: If the SD card is inserted in a wrong way, the card will go deep inside the unit beyond retrieval. Take due
care to insert the SD card correctly.
3 While depressing the "SYSTEM RESET" button located below the RS-232C connector in the rear left side
of the unit, turn on the AC power (i.e. plug in the AC cord).
Note: After the unit is started, you may release the SYSTEM RESET button.
4 After the unit startup, the system upgrade screen as shown below appears within 10-20 seconds.
<SYSTEM UPGRADE>
Program OK NG
KA1M
60%
EEPROM
5 Even a single failure in the process will trigger the upgrade failure screen as shown below. The word "NG"
changes to red for the item failed.
Note: In the event of a failure, repeat the upgrading process. If the process repeatedly fails, it is likely that the
hardware is troubled.
Program OK NG
OK NG
<UPGRADE FAILURE>
KA1M
100%
EEPROM
Ver 1.19 (E 2004/06/15 1 G)
OK NG
17
LC-26GA5H/M/X
6 Upon completion of the whole process, the upgrade success screen as shown below appears. You can
check the new software version on this screen. The version information appears after the upgrade is
complete.
<UPGRADE
Program OKNG
SUCCESS
KA1M
>
100%
EEPROM
Ver 1.19 (E 2004/06/15 1 G)
7 Shut off the AC power to the unit (unplug the AC cord), and remove the SD card for version upgrade.
8 Now the software version upgrade is complete.
Note: When you are done with the software version upgrade, start the set, go to the top page of the adjustment
process screen and check the main software version information.
OK NG
2-3 Monitor microprocessor software version upgrade
Get ready before you begin
Get ready the same items as listed in the "Main software version upgrade".
Preparation
Create the SD card for monitor microprocessor software version upgrade in the same manner as explained in
the "Main software version upgrade". Copy the binary image file for monitor microprocessor software version
upgrade to the SD card drive.
How to upgrade the software
During the monitor microprocessor software version upgrade, the progress of upgrading is not shown on the
display screen. The upgrading process is seen in the blinking of the power LED.
1 Shut off the AC power to the unit (i.e. unplug the AC cord).
2 Insert the SD card for version upgrade (prepared as above) into the service socket located below left of the
right side cooling fan in the rear of the unit, in a way that the cut corner of the SD card comes at the righthand side.
Note: If the SD card is inserted in a wrong way, the card will go deep inside the unit beyond retrieval. Take due
care to insert the SD card correctly.
3 While depressing the "SYSTEM RESET" button located in the rear left side of the unit, turn on the AC
power (i.e. plug in the AC cord).
Note: After the unit is started, you may release the "SYSTEM RESET" button.
Caution!!
The moment this operation is done, the upgrading of the monitor microprocessor software starts.
While the upgrade is ongoing, never power off the unit. Otherwise the upgrade will fail and the
system may have a serious damage beyond recovery (inability to start).
18
LC-26GA5H/M/X
4 After the unit startup, the power LED starts blinking in green within 10-20 seconds.
5 Wait until the power LED stops blinking, the unit restarts automatically, and the normal startup screen
appears (it will take 2-3 minutes).
6 Shut off the AC power to the unit (unplug the AC cord), and remove the SD card for version upgrade.
7 Now the software version upgrade is complete.
Note: When you are done with the software version upgrade, start the set, go to the top page of the adjustment
process screen and check the monitor microprocessor software version information.
3. Entering and exiting the adjustment process mode
(1) Before entering the adjustment process mode, press the "TV RESET" button or execute the AV position
RESET in the video adjustment menu.
(2) Unplug the AC cord from the outlet to make a forced shutdown.
(3) While holding down the "VOL (–)" and "TV/VIDEO" keys at a time, plug the AC cord and turn on the power.
(The "VOL (–)" and "TV/VIDEO" keys should be pressed and held until the display appears.)
The letter " K " appears on the screen.
(4) Next, hold down the "VOL (–)" and "CH (Ù)" keys at a time.
Multiple lines of blue characters appearing on the display indicate that the unit is now in the adjustment
process mode.
When you fail to enter the adjustment process mode (the display is the same as normal startup), retry the
procedure.
(5) To exit the adjustment process mode after the adjustment is done, unplug the AC cord from the outlet to
make a forced shutdown. (When the power was turned off with the remote controller, once unplug the AC
cord and plug it again. In this case, wait 10 seconds or so before plugging.)
Caution: Use due care in handling the information described here lest your users should
know how to enter the adjustment process mode. If the settings are tampered in this mode,
unrecoverable system damage may result.
19
LC-26GA5H/M/X
4. Remote controller key operation and description of display in adjustment process
mode
(1) Key operation
Remote controller keyMain unit keyFunction
CH (Ù/ù)CH (Ù/ù)Moving an item (line) by one (UP/DOWN)
VOL (+/–)VOL (+/–)Changing a selected item setting (+1/–1)
Cursor (UP/DOWN)Turing a page (PREVIOUS/NEXT)
Cursor (LEFT/RIGHT)Changing a selected line setting (+10/–10)
TV/VIDEOTV/VIDEOInput switching (toggle switching)
(TV→INPUT1→INPUT2→INPUT3)
ENTERExecuting a function
* Input mode is switched automatically when relevant adjustment is started so far as the necessary input
signal is available.
(2) Description of display
(1) Current page /
Total pages
(2) Current page title
1/14[INFO]TUNERAUTOAUTO:ASIA
MAIN Version1. XX (E 2004/XX/XX X )
TELETEXT VersionTTX PRG
DVS Version
CPLD VersionXX
Monitor Version3. XX
EQ DATA CHECKSUMA15E
STANDBY CAUSEa
(3) Currently selected
input
(4) Current color
XX
(5) Destination
TV system
Adjustment process
menu header
(7) Parameters
20
5. List of adjustment process mode menu
The character string in brackets [ ] will appear as a page title in the adjustment process menu header.
1MAIN Version
2TELETEXT VersionTELETEXT VersionText microprocessor version display
3DVS VersionDVS VersionDVS version display
4CPLD VersionCPLD VersionCPLD version display
5Monitor VersionMonitor versionObtained from the monitor. (Displays panel size and type as well.)
6EQ DATA CHECKSUMAudio data checksumAudio data checksum display
7STANDBY CAUSEStandby causeLast status which caused standby
9VIC YPOS
10VIC COLOR
11VIC SIGNAL TYPE
12VIC READ
3[PAL MAIN]
1PAL ALL ADJPAL MAIN+SUB+TUNERAuto PAL Main, Sub and Tuner DAC adjustments
2PAL ALL ADJ (CA-8)
3PAL MAIN ADJAuto ALLAuto PAL Main video adjustment
4TUNER DAC ADJ
5TUNER DAC ADJ (CA-8)
6PAL MAIN CONTRASTIC402Contrast
7PAL MAIN COLOR GAINIC402Color gain
8PAL SUB CONTRASTIC601Contrast
9PAL SUB COLOR GAINIC601Color gain
10TUNER A DACTUNER DACTuner DAC
4[PAL SUB]
1
PAL SUB ADJ
2PAL SUB CONTRASTIC601Contrast
3PAL SUB COLOR GAINIC601Color gain
4
TUNER TEST
5
5[PAL 2D MAIN]
6[N358 MAIN]
7[COMP15KMAIN]
8[HDTV]
TUNER TEST (CA-8)
1PAL 2D MAIN ADJ
2PAL 2D MAIN CONTRAST
3
PAL 2D MAIN COLOR GAIN
1N358 MAIN ADJAuto ALLAuto N358 Main video adjustment
2N358 MAIN CONTRASTIC402Contrast
3N358 MAIN COLOR GAINIC402Color gain
1COMP15K ALL ADJAuto ALLAuto COMP15K Main video adjustment
2COMP15K MAIN ADJ
3COMP15K SUB ADJ
4
COMP15K MAIN CONTRAST
5
COMP15K MAIN COLOR GAIN
6
COMP15K SUB CONTRAST
7
COMP15K SUB COLOR GAIN
1HDTV ADJAuto HDTV video adjustment
2CONTRASTIC402Contrast
3COLOR GAINIC402Color gain
Main microprocessor version
Initialization to factory settings
Accumulated AVC operation time
Accumulated monitor operation time
PAL SUBAuto PAL sub adjustment
IC402Contrast
IC402Color gain
IC601Contrast
IC601Color gain
Version display
Initialization to factory settings
Reset by initialization
LC-26GA5H/M/X
21
LC-26GA5H/M/X
9[M GAMMA]
1MONITOR R GAMMA LOMonitor W/B adjustment
2MONITOR G GAMMA LO
3MONITOR B GAMMA LO
4MONITOR R GAMMA HI
5MONITOR G GAMMA HI
6MONITOR B GAMMA HI
7GAMMA WRITEWriting in monitor gamma table
8GAMMA RESETReset of monitor gamma table
10[M GAMMA R]
1MONITOR R GAMMA 1
2MONITOR R GAMMA 2
3MONITOR R GAMMA 3
4MONITOR R GAMMA 4
5MONITOR R GAMMA 5
6MONITOR R GAMMA 6
7GAMMA WRITEWriting in monitor gamma table
8GAMMA RESETReset of monitor gamma table
11[M GAMMA G]
1MONITOR G GAMMA 1
2MONITOR G GAMMA 2
3MONITOR G GAMMA 3
4MONITOR G GAMMA 4
5MONITOR G GAMMA 5
6MONITOR G GAMMA 6
7GAMMA WRITEWriting in monitor gamma table
8GAMMA RESETReset of monitor gamma table
12[M GAMMA B]
1MONITOR B GAMMA 1
2MONITOR B GAMMA 2
3MONITOR B GAMMA 3
4MONITOR B GAMMA 4
5MONITOR B GAMMA 5
6MONITOR B GAMMA 6
7GAMMA WRITEWriting in monitor gamma table
8GAMMA RESETReset of monitor gamma table
13[PATTERN]
1CVIC PATTERN
2GPU PATTERN
14[ETC]
1DATA COPY FOR INIT
2CARD REC INPUT
3EEP SAVE
4EEP RECOVER
5AUTO INSTALLATION SW
6STANDBY CAUSE RESET
7SYS MODEL COUNTRYSelect destinationSelected destination display
Permission of card recording by external input source
Storage of adjustment value
Retrieval of adjustment value
CVIC internal pattern display
SEINE internal pattern display
Saving adjustment value in storage area
Retrieving adjustment value from storage area
6. Special features
* STANDBY CAUSE (Page 1/14)
Display of a cause (code) of the last standby
The cause of the last standby is recorded in EEPROM whenever possible.
Checking this code will be useful in finding a problem when you repair the troubled set.
* EEP SAVE (Page 14/14)
Storage of EEP adjustment value
* EEP RECOVER (Page 14/14)
Retrieval of EEP adjustment value from storage area
22
LC-26GA5H/M/X
7. LCD panel adjustment
Common bias adjustment
Adjustment itemAdjustment conditionsAdjustment procedure
COM BIASVisual check
1. Enter the adjustment process mode.
2. Using the Cursor UP/DOWN keys on the remote controller, move to the
"COMBIAS" item. Using the Cursor RIGHT/LEFT keys, select the
setting.
3. Vary the setting with the Cursor UP/DOWN keys, and the test pattern
appears. Adjust the setting so that the flickering near the center of the
screen should be minimized.
4. Finally press the "OK" key on the remote controller to quit this item.
8. Video signal adjustment procedure * Adjustment process mode menu is listed in section 5.
(1) Signal check
Signal generator level adjustment check (Adjustment to the specified level)
» Composite signal:0.714Vp-p ± 0.02Vp-p (Pedestal to white level)
» 15K component signal:Y level:0.714Vp-p ± 0.02Vp-p (Pedestal to white level)
PB, PR level
» 33K component signal:Y level:0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
PB, PR level
:0.7Vp-p ± 0.02Vp-p
:0.7Vp-p ± 0.02Vp-p
(2) Entering the adjustment process mode
Enter the adjustment process mode according to the steps described in section 3.
Bring the cursor on [ËHDTV ADJ] and press [ENTER].
[ËHDTV ADJ FINISH] appears when finished.
1.Place the set under the following conditions.
AV mode: DYNAMIC
Aging time: Min. 60 minutes
2. Connect the white balance adjustment instrument to the set.
Optical instrument: Minolta CA-210
PC
RS-232C communication cable
3. Using the RS-232C command, get the two-point adjustment screen
displayed.
∫ Two-point adjustment mode (MSET0000)
∫ Adjustment value initialization (MSET0004)
∫ Low-level adjustment point setting (SDML0070)
∫ High-level adjustment point setting (SDMH0187)
1. Set the low-level adjustment point to 57 (SDML0070). Using a
command, adjust the RB setting so that the chromaticity level of lowlevel adjustment pattern should become as specified. <G fixed>
2. Set the high-level adjustment point to 204 (SDMH0187). Using a
command, adjust the RGB setting so that the chromaticity level of highlevel adjustment pattern should become as specified.
<Negative adjustment>
3. Using the MSET0003 command, write the adjusted settings and turn off
the AC power.
[Adjustments]
Optical instrument: Minolta CA-210, screen center to be in focus
Reference point
High-level valuesx=0.272
y=0.275
Low-level valuesx=0.272
y=0.275
RemarksAdjustment preset conditions
25
LC-26GA5H/M/X
(2) List of adjustment commands
RS-232C commands are used for adjustments. Here are the adjustment commands at a glance.
ItemCommandDescription
1Two-pointMSET0000
adjustment start
White balance (two-point) adjustment started.
All commands after this command is accepted are for two-point
adjustments.
2AdjustmentMSET0004
initialization
3AdjustmentMSET0003
value storage
4Low-levelSDML0070
adjustment
point setting
5Low-level RMGLR X X X X
adjustment
6Low-level GMGLG X X X X
adjustment
Adjustment values initialized.
The adjustment value buffer in the set gets initialized.
Adjustment values stored.
Command-adjusted parameters are stored on EEPROM.
Low-level adjustment points preset.
Parameter zone: 0 thru 255
Parameter-specified gradation patterns after this command are displayed.
Parameter-specified adjustment values are default after initialization
(Same as RGB setting). Initialized commands include MGLR, MGLG and
MGLB. Initial settings: 192 for MGLR/G/B initial value at SDML0048, for
example.
Low-level R gamma point adjusted.
Parameter zone: 0 thru 1023
With this command, the adjustment pattern's R level is set as its parameter
value. The parameter value is written in the adjustment value buffer of the
set.
Low-level G gamma point adjusted.
Parameter zone: 0 thru 1023
With this command, the adjustment pattern's G level is set as its parameter
value. The parameter value is written in the adjustment value buffer of the
set.
7Low-level BMGLB X X X X
adjustment
8High-levelSDMH0187
adjustment point
setting
9High-level RMGHR X X X X
adjustment
Low-level B gamma point adjusted.
Parameter zone: 0 thru 1023
With this command, the adjustment pattern's B level is set as its parameter
value. The parameter value is written in the adjustment value buffer of the
set.
High-level adjustment points preset.
Parameter zone: 0 thru 255
Parameter-specified gradation patterns after this command are displayed.
Parameter-specified adjustment values are default after initialization
(Same as RGB setting). Initialized commands include MGHR, MGHG and
MGHB. Initial settings: 800 for MGHR/G/B initial value at SDMH0200, for
example.
High-level R gamma point adjusted.
Parameter zone: 0 thru 1023
With this command, the adjustment pattern's R level is set as its parameter
value. The parameter value is written in the adjustment value buffer of the
set.
26
ItemCommandDescription
10High-level GMGHG X X X X
adjustment
LC-26GA5H/M/X
High-level G gamma point adjusted.
Parameter zone: 0 thru 1023
With this command, the adjustment pattern's G level is set as its parameter
value. The parameter value is written in the adjustment value buffer of the
set.
11High-level BMGHB X X X X
adjustment
12AdjustmentSMGA X X X X
pattern display
13AdjustmentSMGC0000
pattern delete
14Adjustment-CHGM X X X X
reflected pattern
display
High-level B gamma point adjusted.
Parameter zone: 0 thru 1023
With this command, the adjustment pattern's B level is set as its parameter
value. The parameter value is written in the adjustment value buffer of the
set.
Adjustment pattern displayed.
Parameter zone: 0 thru 1023
With this command, parameter-specified gradation patterns (rasters) are
displayed.
~ The patterns appear but the adjustment values are not affected.
Adjustment pattern deleted (simplified deletion).
With this command, parameter-specified gradation patterns (rasters) are
deleted.
~ After deletion, the standard gamma table is unconditionally set.
Be sure to turn off and on the AC power because the above gamma levels
are set for movies too at the AV position.
Patterns are displayed with the adjusted white balance settings stored in
the EEPROM.
Parameter zone: 0001 thru 0006
Low-level display: 0001 High-level display: 0006
(3) Adjusting procedure by use of [RS-232C]
1 Get ready the PC with COM port (RS-232C) running on Windows 95/98/ME/2000/XP operating system,
as well as the RS-232C cross cable.
2 Start the unit with the RS-232C cable connected.
3 Start the terminal software. (The freeware readily available on the Internet will do.)
4 Make the following settings.
Baud rate9,600 bps
Date LENGTH8 bit
Parity bitNone
Stop bit1 bit
Flow controlNone
5 If the settings are correct, the terminal software indicates "ERR" against pressing of the "ENTER" key.
6 After the settings are done correctly, it is possible to make an adjustment by typing in the command
shown in the table below and pressing the "ENTER" key on the keyboard.
7 Command entry is successful if the
8 Send the process mode selector command to switch the set from the RS-232C run mode to the process
mode.
KRSW0001: ERR response
KKT10037: OK response to enable the process mode. If an ERR response is made, start again with the
KRSW0001 command.
9 Send each adjustment command.
27
LC-26GA5H/M/X
(4) White balance adjustment sequence
Adjustments can be started with any input at any position. It is also possible to start with either the high-level or
low-level adjustment.
PC side
~ Low-level adjustment started →
Repeat until the target
values are achieved.
Set side
Process command enabled (STEP 1)
KRSW0001
Command accepted
ERR
Process command enabled (STEP 2)
KKT10037
Process command enable complete
OK
Two-point adjustment mode set
MSET0000
Two-point adjustment mode set complete
OK
Adjustment value initialized
MSET0004
Adjustment value initialization complete
OK
Low-level adjustment point set
SDML0070
Adjustment pattern display setting
Low-level adjustment point setting complete
OK
R and B adjustments
MGLR X X X X, MGLB X X X X
Adjustment value set
Adjustment value setting complete
OK
Low-level adjustment complete
~ High-level adjustment started →
Repeat until the target
values are achieved.
High-level adjustment complete
Adjustment complete
Turn off the AC power.
High-level adjustment point set
SDMH0187
Adjustment pattern display setting
High-level adjustment point setting complete
OK
R, G and B adjustments
MGHR X X X X, MGHG X X X X, MGHB X X X X
Adjustment value set
Adjustment value setting complete
OK
Adjustment value stored
MSET0003
Storage of adjustment values
Adjustment value storage complete
OK
28
LC-26GA5H/M/X
(5) Precautions in adjustment
Do not operate the remote controller and set's switches during adjustment.
Be sure to finally turn off and on again the AC power to reflect the adjustments on the video signals.
This adjustment does not involve the backlight control. To make the backlight setting, get to the specified AV
position.
Even when a pattern is displayed, the onscreen display may still remain on. Before starting the adjustment,
make sure the onscreen display disappears.
(6) Remote controller
Remote control keyFunction
1Pattern display (according to the low-level adjustment)
2Pattern display (according to the high-level adjustment)
Caution: When initialization is performed, all user setting data including the channel settings are
initialized. Be cautious when making this adjustment.
(The adjustments done in the adjustment process mode are not initialized.)
After the adjustment, cancel the adjustment process mode.
To exit the adjustment process mode, unplug the AC cord from the outlet to make a forced
shutdown. (When the power was turned off with the remote controller, once unplug the AC cord
and plug it again. In this case, wait 10 seconds or so before plugging.)
Enter the adjustment process mode.
Bring the cursor on to [INDUSTRY INIT] in page 2/14.
Set to [ON] using [VOL] key, and press [ENTER] to execute the
initialization.
When the initialization is complete, the adjustment process mode screen is
automatically replaced by the TV's screen.
* Never shut off the power during the initialization process.
The following settings are initialized in this adjustment.
1. User setting
2. Channel data (e.g. broadcast frequencies)
3. Operation time
4. Maker's optional setting
5. Password data
29
LC-26GA5H/M/X
11. Display adjustment procedure
1. Adjusting procedure
Entering the adjustment process mode → COM BIAS adjustment
2. Entering and exiting the adjustment process mode
(1) Before entering the adjustment process mode, press the "TV RESET" button or execute the AV position
RESET in the menu video adjustment.
(2) Unplug the AC cord from the outlet to make a forced shutdown.
(3) While holding down the "VOL (+)" and "CH (Ù)" keys at a time, plug the AC cord and turn on the power.
(The "VOL (+)" and "CH (Ù)" keys should be pressed and held until the display appears.)
The letter "K" appears on the screen.
(4) Next, press the "VOL (+)/(–)" or "CH (ù)/(Ù)"key at remote controller.
Multiple lines of red characters appearing on the display indicate that the unit is now in the adjustment
process mode.
When you fail to enter the adjustment process mode (the display is the same as normal startup), retry
the procedure.
(5) To exit the adjustment process mode after the adjustment is done, unplug the AC cord from the outlet to
make a forced shutdown. (When the power was turned off with the remote controller, once unplug the
AC cord and plug it again. In this case, wait 10 seconds or so before plugging.)
Caution: Use due care in handling the information described here lest your users should know
how to enter the adjustment process mode. If the settings are tampered in this mode,
unrecoverable system damage may result.
3. Adjustment process mode key operation table
KeyFunction 1 (when on the left side of a page)Function 2 (when changing a numeric value)
Cursor UP
Cursor DOWN
Cursor RIGHT
Cursor LEFT
ENTER
TV/VIDEO
CH_(ù)
CH_(Ù)
VOL_(+)
VOL_(–)
Moving up by one item or moving to the previous
page (when at the top)
Moving down by one item or moving to the next
page (when at the bottom)
Moving to the right by one item or moving to
another page (in the case of the initial page)
Moving to the left by one item or moving to
another page (in the case of the initial page)
Test pattern off
Moving to the next page
Moving up by one item or moving to the previous
page (when at the top)
Moving down by one item or moving to the next
page (when at the bottom)
Moving to the right by one item or moving to
another page (in the case of the initial page)
Moving to the left by one item or moving to
another page (in the case of the initial page)
Incrementing the adjustment value by one or
executing the item (in the case of W or R item)
Decrementing the adjustment value by one or
executing the item (in the case of W or R item)
Moving to the right by one item
Moving to the left by one item
Executing the item (in the case of W or R item)
Moving to the next page
Incrementing the adjustment value by one or
executing the item (in the case of W or R item)
Decrementing the adjustment value by one or
executing the item (in the case of W or R item)
Moving to the right by one item
Moving to the left by one item
30
LC-26GA5H/M/X
4. Lamp error detection
4-1. Feature description
This liquid-crystal color TV incorporates a lamp error detection feature (lamp error detection) that
automatically turns OFF the power for safety under abnormal lamp or lamp circuit conditions.
If anything is wrong with the lamp or lamp circuit or when the lamp error detection feature is activated for
some reason, the following will result.
1 The power of TV main body is turned OFF about six seconds after it is turned ON. (The power LED on
the front of the TV turns red from green and keeps blinking in red (ON for 250ms and OFF for 1sec)).
2 If occurs five times consecutively, it becomes impossible to turn ON the power. (The power LED keeps
blinking in red (ON for 250ms and OFF for 1sec)).
4-2. Measures
1) Checking with lamp error detection OFF
Enter the display adjustment process mode referring to "11.Display adjustment procedure" on page 30.
If there is a problem with a lamp or a 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 abnormal.
2) Resetting the lamp error count
After you have finished checking whether the lamp and lamp circuit are abnormal, reset the lamp error
count. If a lamp error is detected five consecutive times, the power cannot be turned on.
Therefore, move to the [L ERR RESET] line, the 4th line on the first page of the "Display process mode",
using the "Cursor UP/DOWN" key. Then, reset the [L ERR RESET] value using the "Cursor RIGHT/
LEFT" key. In this case, press the "Cursor UP/DOWN" key to reset it to "0".
Table of contents of adjustment process mode Page 0
No power supply (Front LED is off) or no power-up (Front LED does not change from red to green)
Is power cable properly connected to the main unit?
YES
Is F701 normal?
YES
Is BU+5V line (pin (16) of CN706, pin (8) of CN707 and pin
(5) of CN708) normal?
YES
Are the wire harness, FFC, etc. in the set connected properly?
YES
Is the voltage (approx. 380V) available at C709/C710 when the
power is turned on?
YES
Is the voltage available in 15V line immediately after the power is
turned on?
YES
Is each DC/DC converter output (IC707-711 and IC716) normal?
NO
NO
NO
NO
NO
NO
NO
Connect the AC cord properly, and turn on the power.
Replace F701 and F702, and turn on the power. If the fuse is
still blown, replace VA701, D701, D702, L703, Q701, Q702 and
IC701. Then repeat the check.
Is there any defective part or short-circuit in BU+5V line?
YES
Check the BU+5V line power circuits (F703,
D722, IC703, T703, PC702, D761, D784 and
IC715).
Remove the defective part or short-circuit, and repeat the check.
Reconnect the wire harness, FFC, etc. in the set properly, and
repeat the check.
Check the 380V line power circuits (L703, IC701, Q701-5, D706
and TH701).
Check the 15V line power circuits (T701, T702, F704, Q706-14,
PC703-4, D708-17, IC702, L710, Q733-6, D735-6, D780 and
IC706).
Check each DC/DC converter and line (IC707-11 and IC716).
Replace if necessary.
NO
• Power switch: Top panel
(Main) Power (DC cutoff: Detected by microprocessor)
[Scheme of power supply system]
Relay
[(Main) Power OFF sequence]
1) (Main) Power OFF (DC switch)
2) (Main) Power shutoff is detected by the monitor microprocessor port.
3) Standby request (power cord) is sent to Seine from the microprocessor.
4) Seine shutdown process
5) Reception of shutdown permission from Seine
6) Monitor microcomputer turns off the relay to enter the standby mode.
SH
Main
Monitor microprocessorBackup
(Main) Power
35
LC-26GA5H/M/X
Is the power LED on in green?
YES
Power LED flash timing chart in case of error
Type of error
Power error
One flash: Slow
Lamp error
One flash: Quick
Panel power error (VSH)
Two flashes
Temperature error
Five flashes
TROUBLE SHOOTING TABLE (Continued)
No video and audio output
NO
250ms1sec
Power LED behavior (one cycle)
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
Is the power LED on in red?
YES
Does the LED flash at regular intervals?
NO
Does the LED flash just once?
NO
Does the LED flash twice?
NO
Does the LED flash 5 times?
Check the power circuit.
Check the power circuit. The CCKM and D5V
lines are okay.
Go to "Backlight failure".
Check the panel power detector (VSH).
Check the set's temperature.
NO
YES
YES
YES
YES
NO
Is the backlight off?
YES
Go to "Backlight failure".
No video output
Is there the clock output at pin (40) of IC4501?
Is the adjustment process menu displayed?Check IC4601 and its peripheral circuits.
Check IC4901 and its peripheral circuits.
Call the adjustment process menu, select PATTERN 1 and set
"2" to PATTERN 1. Is the gradation pattern as specified?
Call the adjustment process menu, select PATTERN 1 and set
"2" to PATTERN 3. Is the gradation pattern as specified?
Call the adjustment process menu, select PATTERN 1 and set
"4" to PATTERN 3. Is the test pattern dot by dot as specified?
Call the adjustment process menu, select PATTERN 1 and set
"5" to PATTERN 3. Is the test pattern dot by dot as specified?
Check IC4601 and its peripheral circuits.
YES
Data bit dropout (gradation-related)
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
Go to "No video output".
Check the FFC line (LV SC3200, SC4601) between main unit and
LCD control unit.
Check the connection between SC4651 and SC4652, as well as
IC4501 and its peripheral circuits.
Check IC4902 and its peripheral circuits.
Check the line between IC4901 and IC4501.
Check the line between IC4901 and IC4501.
Video noise onscreen with QS drive on
Is the TEMP.AD on Page 1 of adjustment process mode set at
255?
Are the inverter GND PWB and LCD control PWB interconnected
properly with harness?
Is the input voltage at pin (62) of microprocessor IC2004 at 5V?
Thermistor on inverter GND PWB defective.
YES
YES
YES
NO
NO
NO
Check IC4901 and its peripheral circuits.
Reconnect them properly or replace the harness.
Pin (62) of microprocessor IC2004 defective.
36
TROUBLE SHOOTING TABLE (Continued)
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Backlight failure
Whitish screen overall (LCD current)
Does the inverter oscillation circuit of power unit function?
Is the fuse (F705) of power unit blown out?
Check the fluorescent lamps, connectors and their peripheral
Call the adjustment process menu, select PATTERN 1 and set
"1" to PATTERN 3. Is the gradation pattern as specified (too
whitish or too darkish)?
Disconnect the FPCs from SC4651 and SC4652 (to protect the
panel against damages).
Check the voltages that are supplied to the panel.
Is the TV video signal outputted to pin (17) of the tuner?
Are the main video signal and sub video signal outputted to pins (56) and (44) of IC3801, respectively?
Check the tuner and its peripheral circuits.
NO
Is TV selected on the input select menu screen?
Select TV on the input select menu screen. Make sure
Audio Only is off.
NO
Is the TV video signal outputted to pin (5) (TP1101)
of IC1103 (LEVEL ADJ.)?
See if the level control signal is coming from IC1104
to pin (6) of IC1103.
NO
Is the video signal inputted to pin (8) of IC401 (MAIN L.P.F.) and pin (2) of IC600 (SUB L.P.F.)?
Is the TV video signal inputted to pin (63) of IC3801
(AV SWITCH)?
YES
Replace the main PWB, or check the lines from IC402,
IC502 and IC601 up to IC3201.
Check IC3801 and its peripheral circuits.
NO
Is the video signal inputted to pin (8) of IC402
(MAIN 3D-YC & CHROMA)?
YES
NO
Check the line between IC401 and IC402.
Is the digital video signal outputted from pins (124)
thru (133) as well as (140) thru (159) of IC402?
YES
NO
Check IC402 and its peripheral circuits.
Check IC320 (LVDS_TRANSMITTER)
and its peripheral circuits.
YES
Check the lines from IC3801 up to IC401 and IC600.
Check the LCD control PWB.
YES
NO
<Main system>
3D-YC<PALNTSC>
YES
Is the video signal inputted to pin (12) of IC502
(MAIN 2D-YC & CHROMA)?
YES
NO
Check the line between IC401 and IC502.
Is the digital video signal outputted from pins (115)
thru (126) as well as (133) thru (144) of IC502?
YES
YES
NO
Check IC502 and its peripheral circuits.
<Main system>
2D-YC<SECAM>
YES
Is the video signal inputted to pin (72) of IC601
(SUB 2D-YC & CHROMA)?
YES
NO
Check the line between IC401 and IC601.
Is the digital video signal outputted from pins (31)
thru (50) of IC601?
YES
NO
Check IC601 and its peripheral circuits.
<Sub system>
TROUBLE SHOOTING TABLE (Continued)
LC-26GA5H/M/X
41
LC-26GA5H/M/X
∫ IC3801 (CXA2069Q)
This is a 7-input, 3-output selector. All the video signals but the PC and component lines, coming from the
input terminals and tuner, as well as all the audio signals are fed into this IC for being selected.
The video output signal from this IC then flows through the low-pass filter circuits IC401/IC600 (SM5313AS) to
the YC separator-incorporating video decoder circuits IC402/IC502 (Main) and IC601 (Sub). The external
input audio signal is supplied through IC2701 (Sound Processor) to the digital amplifier circuit.
∫ IC3805 (MM1519XQ)
This is a 4-input, 3-output video selector for component inputs.
The INPUT1 and INPUT3 component inputs and the teletext RGB signals are received. Outgoing are the
component/RGB outputs for Main, Sub and Pass.
∫ IC1601 (SDA5550M) (LC-26GA5M/X only)
This is a teletext microprocessor. The teletext data of video signal input is decoded, and the resulting RGB
data is put out of this IC.
∫ IC401 (SM5302AS)
The SM5302AS is a 3-channel video buffer that processes the main signal and has a 5th order Butterworth
low-pass filter incorporated. The low-pass filter's cut-off frequency can be flexibly preset. This filter puts in and
out the video signals from 480i to 1080i.
MAJOR IC INFORMATIONS
∫ IC600 (SM5313AS)
The SM5313AS is a 6-channel video buffer that processes the sub signal and has a low-pass filter incorporated.
This IC is able to drive the S video signal, composite signal and component signal, through the 6 channels at
once.
∫ IC402 (CXD3802B)
The CXD3802BQ is a digital chroma decoder. The main signal is processed for the luminance signal, color
signal and sync signal with respect to the CVBS/YC signal, analog component signal and digital component
signal of adaptive 3D comb filter NTSC/PAL system. The output is 10-bit Y/CbCr (ITU_R601).
42
LC-26GA5H/M/X
∫ IC502 (CXD2096Q)
The CXD2096Q is also a digital chroma decoder. The main signal is processed for the luminance signal,
chroma signal and sync signal with respect to the adaptive 2D comb filter PAL/NTSC/SECAM system. The
output is 10-bit Y/CbCr (ITU_R601).
∫ IC601 (VPC3230D)
The VPC32320D is a digital video decoder. The sub signal is processed for the luminance signal, chroma
signal and sync signal with respect to the adaptive 4D comb filter P AL/NTSC/SECAM system. The output is 8bit Y/CbCr (ITU_R656).
∫ IC802 (IXA835WJ)
The F.P .G.A. (Field Programmable Gate Arrays) chip is designed to get the digitized input signals synchronized
and selected accordingly.
∫ IC3300 (IXA091WJ)
This IC is intended to convert the data of video signal, such as I/P conversion and scaling, to adjust the
digitized video signals to the output resolution. The output digital signal flows toward IC3201 (L VDS transmitter).
∫ IC3201 (THC63LVD823)
The THC63LVD823 is a 170-MHz LVDS (Low Voltage Differential Signaling) transmitter with 24-bit interface
chip selector. This LSI is designed to serialize the RGB, HD, VD, blanking, and pixel clock signals for
transmission.
The LVDS (Low Voltage Differential Signaling) system helps convey via cable the high-speed digital signal in
the form of differential small-amplitude signal.
The 1LINK consists of 5 pairs of differential signals. The TA, TB, TC and TD pairs are used for data transmission,
whereas the TCLK pair for pixel clock transmission. In this way, the TA, TB, TC and TD pairs are sent in 7 data
(28 data in total) by a single pixel clock.
The RGB signal (24 bits) and the sync signals (HD, VD, DE), which come into this chip, are arranged in these
28 data.
∫ IC4601 (IXB001WJ)
The input 8-bit RGB signal comes from the dual-linked L VDS chip and the output 8-bit RGB signal goes to the
CMOS chip. The sync signals (H, V, DE), in sync with the input signal, become free-run sync signals (H, V,
DE).
43
LC-26GA5H/M/X
∫ IC4602 (IXB227WJ)
The EEPROM is designed to store the 10-bit gamma correction and crosstalk correction data. When the set is
switched on, the data is read to IC4601 (IXB001WJ).
∫ IC4901 (IXB002WJ)
This is a QS (QuickShot) driver. QS drive is carried out for the input signal from the IC4601 (IXB001WJ)
picture quality correction chip. This signal is processed, according to the temperature parameter setting from
the monitor microprocessor, to feed out the LVDS signal. FIFO (IC4902: RH-IXA986WJZZQ) is also controlled
here for computing.
∫ IC4902 (IXA986WJ)
The 26M bit FIFO chip is a computing memory for the IC4901 (IXB002WJ) QS driver chip.
∫ IC4903 (IXB243WJ)
The EEPROM is designed to store the QS parameters. The data is read frame by frame to the QS driver.
∫ IC4501 (IXB003WJ)
The liquid crystal display panel controller receives the LVDS RGB signal from the QS driver and sends the
video signal (RSDS) to the LCD panel.
The control signals for the dimmer and CS circuits are also generated in this IC.
∫ IC4101 (IXA706WJ)
The TFT liquid crystal gradation reference power chip has an 18-line gradation output buffer amplifier, CMOS
buffer amplifier and reference voltage supply incorporated.
∫ IC2701 (MSP3450G)
The audio decoder IC serves to decode the S-IF signal and to select the input audio data.
∫ IC2714 (AK4586VQ)
The AK4586 is a 24-bit CODEC with built-in 2CH analog/digital converter and 6CH digital/analog converter.
(The CODEC is a device that converts analog signals to digital bit stream.)
This IC has a 96-kHz/24-bit-compatible DIR (Digital Audio Receiver) incorporated. Also the non-PCM data
stream, such as AC-3/MPEG, is automatically detected here.
The CODEC is an electronic circuit that converts audio analog data to digital codes and vice versa. In short, it
is a sort of AD and DA converters.
44
LC-26GA5H/M/X
∫ IC2710 (NJU26150)
The NJU26150 is a processor IC that is composed of DIR-incorporating 24-bit DSP (Digital Signal Processor)
core and various interfaces. The program written on IC2708 (EEPROM) is downloaded to the built-in PRAM
for operation.
The built-in functions include audio delay, BBE, and parametric equalizer. Digital processing is made in the
I2S format.
There are 3 data input lines (SDI0, SDI1, SDI2) and 3 data output lines (SDO0, SDO1, SDO2). Two different
types of LR clock (LRI, LRO) and BCK (BCKI, BCKO) are used to transfer the data along the serial data line.
∫ IC2700 (NJU26106)
The NJU26106 is a digital signal processor that decodes the matrix-encoded (Lt/Rt) stereo signal. On this set,
the processor is used for Dolby Virtual function.
∫ IC1001 (IXB027WJ)
This IC is a high-performance CPLD (Complex Programmable Logic Device). The device serves to communicate
with the display and also to control the entire system.
∫ IC2004 (IXA870WJ)
The LCD controller microprocessor has many tasks: OSD control on the LCD monitor, thermistor-sensed
panel temperature detection, temperature parameter setting for the QS driver, timing for the liquid crystal
display panel controller, dimmer data setting, power control, power line monitoring, remote control decoding,
and OPC control.
∫ IC3704 (TA1318AF)
This IC is designed to process the TV component signal synchronization and to measure the frequency.
The frequency measurement function for input signals and other functions for synchronized reproduction are
incorporated in a single chip. The chip readily meets the horizontal synchronized reproduction function (15.75
kHz, 31.5 kHz, 33.75 kHz, 45 kHz) and vertical synchronized reproduction function (525I, 525P, 625I, 750P,
1125I, 1125P, PAL 100 Hz, NTSC 120 Hz).
Replacement parts which have these special safety characteristics
identified in this manual; electrical components having such features
are identified by
and Schematic Diagrams. The use of a substitute replacement part
which does no have the same safety characteristic as the factory
recommended replacement parts shown in this service manual may
create shock, fire or other hazards.
"HOW TO ORDER REPLACEMENT P ARTS"
To have your order filled promptly and correctly, please furnish the
following informations.
1. MODEL NUMBER2. REF. NO.
3. P AR T NO .4. DESCRIPTION
Ref. No.Part No.★DescriptionCode
PRINTED WIRING BOARD ASSEMBLIES
å and shaded areas in the Replacement Parts Lists
★ MARK: SPARE PARTS-DELIVERY SECTION
(NOT REPLACEMENT ITEM)
LC-26GA5M
DUNTKC427FE47– CPU Unit—
DUNTKC585FE79J MAIN Unit
DUNTKC807FEB7J LCD CONTROL Unit
DUNTKD099DE01– AV Unit—
DUNTKD100DE01– KEY Unit—
DUNTKD101DE01– R/C, LED Unit—
RUNTKA075WJZZ– INVERTER Unit—
RUNTKA076WJZZ– INVERTER-GND Unit—
RDENCA078WJZZ – POWER Unit—
LC-26GA5X
DUNTKC427FE47– CPU Unit—
DUNTKC585FE80J MAIN Unit
DUNTKC807FEB8J LCD CONTROL Unit
DUNTKD099DE02– AV Unit—
DUNTKD100DE02– KEY Unit—
DUNTKD101DE02– R/C, LED Unit—
RUNTKA075WJZZ– INVERTER Unit—
RUNTKA076WJZZ– INVERTER-GND Unit—
RDENCA072WJZZ – POWER Unit—
LC-26GA5H
DUNTKC427FE47– CPU Unit—
DUNTKC585FE81J MAIN Unit
DUNTKC807FEB9J LCD CONTROL Unit
DUNTKD099DE03– AV Unit—
DUNTKD100DE03– KEY Unit—
DUNTKD101DE03– R/C, LED Unit—
RUNTKA075WJZZ– INVERTER Unit—
RUNTKA076WJZZ– INVERTER-GND Unit—
RDENCA072WJZZ – POWER Unit—
R401VRS-CY1JF560JYJ 561/16W Metal OxideAA
R402VRS-CY1JF560JYJ 561/16W Metal OxideAA
R403VRS-CY1JF222FYJ 2.2k 1/16W Metal OxideAA
R404VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R405VRS-CY1JF391JYJ 3901/16W Metal OxideAA
R406VRS-CY1JF331JYJ 3301/16W Metal OxideAA
R407VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R408VRS-CY1JF000JYJ 01/16W Metal OxideAA
R409VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R410VRS-CY1JF391JYJ 3901/16W Metal OxideAA
R411VRS-CY1JF391JYJ 3901/16W Metal OxideAA
R412VRS-CY1JF100JYJ 101/16W Metal OxideAA
R414VRS-CY1JF100JYJ 101/16W Metal OxideAA
R416VRS-CH1JF102JYJ 1k1/16W Metal OxideAA
R417VRS-CY1JF560JYJ 561/16W Metal OxideAA
R418VRS-CY1JF560JYJ 561/16W Metal OxideAA
R419VRS-CH1JF102JYJ 1k1/16W Metal OxideAA
R420VRS-CH1JF102JYJ 1k1/16W Metal OxideAA
R421VRS-CJ1JF680JYJ 681/16W Metal OxideAA
R422VRS-CY1JF101JYJ 1001/16W Metal OxideAA
R423VRS-CH1JF102JYJ 1k1/16W Metal OxideAA
R424VRS-CH1JF470JYJ 471/16W Metal OxideAA
R425VRS-CH1JF470JYJ 471/16W Metal OxideAA
R426VRS-CH1JF470JYJ 471/16W Metal OxideAA
R427VRS-CH1JF470JYJ 471/16W Metal OxideAA
R428VRS-CY1JF470JYJ 471/16W Metal OxideAA
R429VRS-CH1JF102JYJ 1k1/16W Metal OxideAA
R439VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R442VRS-CJ1JF470JYJ 471/16W Metal OxideAA
R443VRS-CY1JF100JYJ 101/16W Metal OxideAA
R444VRS-CY1JF220JYJ 221/16W Metal OxideAA
R445VRS-TV1JD000JYJ 01/10W Metal OxideAA
R446VRS-CY1JF000JYJ 01/16W Metal OxideAA
R450VRS-TV1JD000JYJ 01/10W Metal OxideAA
R451VRS-TV1JD000JYJ 01/10W Metal OxideAA
R452VRS-TV1JD000JYJ 01/10W Metal OxideAA
R460VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R461VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R462VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R463VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R502VRS-CH1JF102JYJ 1k1/16W Metal OxideAA
R503VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R504VRS-CY1JF560JYJ 561/16W Metal OxideAA
R505VRS-CY1JF560JYJ 561/16W Metal OxideAA
R506VRS-CY1JF101JYJ 1001/16W Metal OxideAA
R507VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R508VRS-CY1JF102FYJ 1k1/16W Metal OxideAA
R509VRS-CY1JF100JYJ 101/16W Metal OxideAA
R510VRK-CD1JJ100JYJ 101/16W Metal Compo. AC
R511VRS-CY1JF750JYJ 751/16W Metal OxideAA
R512VRS-CY1JF750JYJ 751/16W Metal OxideAA
R513VRS-CY1JF750JYJ 751/16W Metal OxideAA
R514VRK-CD1JJ100JYJ 101/16W Metal Compo. AC
R515VRS-CY1JF101JYJ 1001/16W Metal OxideAA
R516VRS-CY1JF102FYJ 1k1/16W Metal OxideAA
R517VRS-CJ1JF100JYJ 101/16W Metal OxideAA
R518VRS-CY1JF220JYJ 221/16W Metal OxideAA
R550VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R551VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R552VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R600VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R601VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R602VRS-CY1JF101JYJ 1001/16W Metal OxideAA
R603VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R604VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R605VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R606VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R607VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R608VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R609VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R610VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R611VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R612VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R613VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R614VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R615VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R616VRS-CY1JF911JYJ 9101/16W Metal OxideAB
R617VRS-CY1JF911JYJ 9101/16W Metal OxideAB
R618VRS-CY1JF911JYJ 9101/16W Metal OxideAB
R619VRS-CY1JF911JYJ 9101/16W Metal OxideAB
R620VRS-CY1JF911JYJ 9101/16W Metal OxideAB
R621VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R622VRS-CY1JF471JYJ 4701/16W Metal OxideAA
R623VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R624VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R625VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R626VRS-CY1JF101JYJ 1001/16W Metal OxideAA
R627VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R628VRS-CJ1JF100JYJ 101/16W Metal OxideAA
R629VRS-CY1JF560JYJ 561/16W Metal OxideAA
R630VRS-CY1JF560JYJ 561/16W Metal OxideAA
R631VRS-CY1JF101JYJ 1001/16W Metal OxideAA
R632VRK-CD1JJ100JYJ 101/16W Metal Compo. AC
R634VRK-CD1JJ100JYJ 101/16W Metal Compo. AC
R636VRS-TV1JD000JYJ 01/10W Metal OxideAA
R637VRS-CY1JF220JYJ 221/16W Metal OxideAA
R639VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R640VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R641VRK-CD1JJ103JYJ 10k1/16W Metal Compo. AC
R642VRS-CY1JF000JYJ 01/16W Metal OxideAA
R643VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R644VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R645VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R801VRS-CY1JF000JYJ 01/16W Metal OxideAA
R802VRS-CY1JF000JYJ 01/16W Metal OxideAA
R803VRS-CH1JF470JYJ 471/16W Metal OxideAA
R804VRS-CY1JF000JYJ 01/16W Metal OxideAA
R807VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R808VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R809VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R810VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R813VRS-CH1JF470JYJ 471/16W Metal OxideAA
R814VRS-CH1JF470JYJ 471/16W Metal OxideAA
R816VRS-CY1JF000JYJ 01/16W Metal OxideAA
R817VRS-CY1JF330JYJ 331/16W Metal OxideAA
R818VRS-CY1JF330JYJ 331/16W Metal OxideAA
R819VRS-CY1JF330JYJ 331/16W Metal OxideAA
R820VRS-CY1JF330JYJ 331/16W Metal OxideAA
R821VRS-CH1JF103JYJ 10k1/16W Metal OxideAA
R824VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R825VRK-CD1JJ330JYJ 331/16W Metal Compo. AC
R826VRK-CD1JJ330JYJ 331/16W Metal Compo. AC
R827VRK-CD1JJ330JYJ 331/16W Metal Compo. AC
R828VRK-CD1JJ330JYJ 331/16W Metal Compo. AC
R829VRK-CD1JJ330JYJ 331/16W Metal Compo. AC
R830VRK-CD1JJ330JYJ 331/16W Metal Compo. AC
R831VRK-CD1JJ330JYJ 331/16W Metal Compo. AC
R832VRK-CD1JJ330JYJ 331/16W Metal Compo. AC
R833VRK-CD1JJ330JYJ 331/16W Metal Compo. AC
R834VRS-CY1JF330JYJ 331/16W Metal OxideAA
R835VRS-CY1JF330JYJ 331/16W Metal OxideAA
R836VRS-CY1JF330JYJ 331/16W Metal OxideAA
R837VRS-CY1JF330JYJ 331/16W Metal OxideAA
R838VRS-CY1JF330JYJ 331/16W Metal OxideAA
R839VRS-CY1JF330JYJ 331/16W Metal OxideAA
R840VRS-CY1JF330JYJ 331/16W Metal OxideAA
R841VRS-CY1JF330JYJ 331/16W Metal OxideAA
R842VRS-CY1JF330JYJ 331/16W Metal OxideAA
R843VRS-CY1JF000JYJ 01/16W Metal OxideAA
R844VRS-CY1JF000JYJ 01/16W Metal OxideAA
R845VRS-CY1JF000JYJ 01/16W Metal OxideAA
R846VRS-CY1JF000JYJ 01/16W Metal OxideAA
R847VRS-CY1JF000JYJ 01/16W Metal OxideAA
R849VRK-CD1JJ103JYJ 10k1/16W Metal Compo. AC
R850VRS-CJ1JF103JYJ 10k1/16W Metal OxideAA
R851VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1001 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1002 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1003 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1004 VRS-CH1JF470JYJ 471/16W Metal OxideAA
R1005 VRS-CH1JF470JYJ 471/16W Metal OxideAA
R1006 VRS-CY1JF470JYJ 471/16W Metal OxideAA
R1007 VRS-CY1JF470JYJ 471/16W Metal OxideAA
R1008 VRS-CY1JF000JYJ 01/16W Metal OxideAA
R1009 VRS-CY1JF000JYJ 01/16W Metal OxideAA
R1010 VRS-CH1JF472JYJ 4.7k 1/16W Metal OxideAA
R1011 VRS-CH1JF470JYJ 471/16W Metal OxideAA
R1012 VRS-CY1JF000JYJ 01/16W Metal OxideAA
R1013 VRS-CH1JF000JYJ 01/16W Metal OxideAA
R1014 VRS-CH1JF470JYJ 471/16W Metal OxideAA
R1015 VRS-CH1JF470JYJ 471/16W Metal OxideAA
R1016 VRS-CY1JF470JYJ 471/16W Metal OxideAA
R1017 VRS-CH1JF470JYJ 471/16W Metal OxideAA
R1018 VRS-CY1JF000JYJ 01/16W Metal OxideAA
R1019 VRS-CY1JF000JYJ 01/16W Metal OxideAA
R1020 VRS-CY1JF000JYJ 01/16W Metal OxideAA
R1021 VRS-CY1JF000JYJ 01/16W Metal OxideAA
R1023 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1025 VRS-CJ1JF000JYJ 01/16W Metal OxideAA
R1026 VRS-CH1JF470JYJ 471/16W Metal OxideAA
R1028 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1029 VRS-CY1JF470JYJ 471/16W Metal OxideAA
R1030 VRS-CY1JF470JYJ 471/16W Metal OxideAA
R1031 VRS-CY1JF470JYJ 471/16W Metal OxideAA
R1032 VRS-CY1JF470JYJ 471/16W Metal OxideAA
R1033 VRS-CY1JF470JYJ 471/16W Metal OxideAA
R1034 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1049 VRS-CY1JF470JYJ 471/16W Metal OxideAA
R1073 VRS-CH1JF470JYJ 471/16W Metal OxideAA
R1074 VRS-CH1JF470JYJ 471/16W Metal OxideAA
R1075 VRS-CY1JF000JYJ 01/16W Metal OxideAA
R1077 VRS-CY1JF470JYJ 471/16W Metal OxideAA
R1078 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1079 VRS-CY1JF101JYJ 1001/16W Metal OxideAA
R1080 VRS-CH1JF000JYJ 01/16W Metal OxideAA
R1081 VRS-CH1JF000JYJ 01/16W Metal OxideAA
R1082 VRS-CY1JF000JYJ 01/16W Metal OxideAA
R1500 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1501 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1502 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1503 VRS-CY1JF223JYJ 22k1/16W Metal OxideAA
R1504 VRS-CY1JF223JYJ 22k1/16W Metal OxideAA
R1505 VRS-CY1JF223JYJ 22k1/16W Metal OxideAA
R1506 VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R1507 VRS-CY1JF223JYJ 22k1/16W Metal OxideAA
R1508 VRS-CY1JF102JYJ 1k1/16W Metal OxideAA
R1509 VRS-CY1JF472JYJ 4.7k 1/16W Metal OxideAA
R1510 VRS-CY1JF473JYJ 47k1/16W Metal OxideAA
R1511 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1512 VRS-CY1JF473JYJ 47k1/16W Metal OxideAA
R1513 VRS-CY1JF103JYJ 10k1/16W Metal OxideAA
R1514 VRS-CY1JF223JYJ 22k1/16W Metal OxideAA
R1515 VRS-CY1JF223JYJ 22k1/16W Metal OxideAA
R1516 VRS-CY1JF101JYJ 1001/16W Metal OxideAA
R1517 VRS-CY1JF101JYJ 1001/16W Metal OxideAA
R1518 VRS-CY1JF391JYJ 3901/16W Metal OxideAA
R1519 VRS-CY1JF473JYJ 47k1/16W Metal OxideAA
R1520 VRS-CY1JF473JYJ 47k1/16W Metal OxideAA
R1521 VRS-CY1JF473JYJ 47k1/16W Metal OxideAA
R1522 VRS-CY1JF473JYJ 47k1/16W Metal OxideAA