Sharp Aquos LC-22SV6U User manual

LC-22SV6U
SERVICE MANUAL
MODEL LC-22SV6U
LCD COLORTELEVISION
In the interests of user-safety (Required by safety regulations in some countries) the set should be re-
stored to its original condition and only parts identical to those specified should be used.
CONTENTS
»IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................... 2
»SPECIFICATIONS ................................................................................................................................... 5
»OPERATION MANUAL ............................................................................................................................ 6
»DIMENSIONS ........................................................................................................................................ 10
»REMOVING OF MAJOR PARTS............................................................................................................11
»ADJUSTING PROCEDURE OF EACH SECTION ................................................................................ 14
»TROUBLE SHOOTING TABLE ............................................................................................................. 32
»CHASSIS LAYOUT................................................................................................................................37
»BLOCK DIAGRAM................................................................................................................................. 40
»OVERALL WIRING DIAGRAM .............................................................................................................. 42
»DESCRIPTION OF SCHEMATIC DIAGRAM ........................................................................................ 44
»SCHEMATIC DIAGRAM ........................................................................................................................ 45
»PRINTED WIRING BOARD ASSEMBLIES........................................................................................... 80
»REPLACEMENT PARTS LIST............................................................................................................... 97
»PACKING OF THE SET........................................................................................................................117
Page
SHARP CORPORATION This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
S93I4LC22SV6U

2
LC-22SV6U
CAUTION: FOR CONTINUED
PROTECTION AGAINST A RISK OF
FIRE, REPLACE ONLYWITH SAME
TYPE F701 (1.6A, 250V), F702 (2.5A,
250V), F6551 (1.25A, 250V), F6552
(1.25A, 250V), F6553 (1.25A, 250V)
AND F6554 (1.25A, 250V) FUSE.
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SAFETY NOTICE
Many electrical and mechanical parts in Liquid Crystal
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”
IMPORTANT SERVICE SAFETY PRECAUTION
ËService work should be performed only by qualified service technicians who are thor-
oughly familiar with all safety checks and the servicing guidelines which follow:
and shaded areas in the Replacement Parts Lists 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.
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks:
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,
and connect the DC power cable into the receiver's
DC jack. (Do not use an isolation transformer for this
test).
•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.
•Use an AC voltmeter having with 5000 ohm per volt, or
higher, sensitivity or measure the AC voltage drop
across the resisor.
•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 0.75V rms (this corresponds to 0.5
milliamp.rms AC.) or more is excessive and indicates
a potential shock hazard which must be corrected
before returning the monitor to the owner.
DVM
AC SCALE
1.5k ohm
10W
0.15 µF
TEST PROBE
TO EXPOSED
METAL PARTS CONNECT TO
KNOWN EARTH
GROUND
A V

3
LC-22SV6U
PRECAUTION: POUR LA
PROTECTION CONTINUE CONTRE
LES RISQUES D'INCENDIE,
REMPLACER LE FUSIBLE PAR UN
FUSIBLE DE MEME TYPE F701
(1.6A, 250V), F702 (2.5A, 250V),
F6551 (1.25A, 250V), F6552 (1.25A,
250V), F6553 (1.25A, 250V) AND
F6554 (1.25A, 250V).
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AVIS POUR LA SECURITE
De nombreuses pièces, électriques et mécaniques,
dans les téléviseurs présentent des caractéristiques
spéciales relatives àla sécurité, qui ne sont souvent
pas évidentes àvue. Le degréde protection ne peut
pas être nécessairement augmentée en utilisant des
pièces de remplacement étalonnées pour haute tension,
puissance, etc.
Les pièces de remplacement qui présentent ces
caractéristiques sont identifiées dans ce manuel; les
pièces électriques qui présentent ces particularités sont
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
ËNe peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement
accoutumé à toute vérification de sécurité et aux conseils suivants.
identifiées par la marque " å" et hachurées dans la
liste des pièces de remplacement et les diagrammes
schématiques.
Pour assurer la protection, ces pièces doivent être
identiques àcelles utilisées dans le circuit d'origine.
L'utilisation de pièces qui n'ont pas les mêmes
caractéristiques que les pièces recommandées par
l'usine, indiquées dans ce manuel, peut provoquer des
électrocutions, incendies, radiations X ou autres
accidents.
AVERTISSEMENT
1. N'entreprendre aucune modification de tout circuit.
C'est dangereux.
2. Débrancher le récepteur avant toute réparation.
VERIFICATIONS CONTRE L'INCEN-DIE ET
LE CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer
les vérifications suivantes.
1. Inspecter tous les faisceaux de câbles pour s'assurer
que les fils ne soient pas pincés ou qu'un outil ne soit
pas placéentre le châssis et les autres pièces
métalliques du récepteur.
2. Inspecter tous les dispositifs de protection comme les
boutons de commande non-métalliques, les isolants,
ledos du coffret,lescouverclesoublindagesderéglage
etdecompartiment,lesréseauxderésistance-capacité,
les isolateurs mécaniques, etc.
3. S'assurer qu'il n'y ait pas de danger d'électrocution en
vérifiant la fuite de courant, de la facon suivante:
•Brancher le cordon d'alimentation directem-ent àune
prise de courant de 110-240V. (Ne pas utiliser de
transformateur d'isolation pour cet essai).
•A l'aide de deux fils àpinces, brancher une résistance
de 1.5 kΩ10 watts en parallèle avec un condensateur
de 0,15µF en série avec toutes les pièces métalliques
exposées du coffret et une terre connue comme une
conduite électrique ou une prise de terre branchée àla
terre.
•Utiliser un voltmètre CA d'une sensibilitéd'au moins
5000Ω/V pour mesurer la chute de tension en travers
de la résistance.
•Toucher avec la sonde d'essai les pièces métalliques
exposées qui présentent une voie de retour au châssis
(antenne, coffret métallique, tête des vis, arbres de
commande et des boutons, écusson, etc.) et mesurer
la chute de tension CA en-travers de la résistance.
Toutes les vérifications doivent être refaites après avoir
inverséla fiche du cordon d'alimentation. (Si
nécessaire, une prise d'adpatation non polarisée peut
être utilisée dans le but de terminer ces vérifications.)
Tous les courants mesurés ne doivent pas dépasser
0,5 mA.
Dans le cas contraire, il y a une possibilitéde choc
électrique qui doit être supprimée avant de rendre le
récepteur au client.
DVM
AC SCALE
1.5k ohm
10W
0.15 µF
TEST PROBE
TO EXPOSED
METAL PARTS CONNECT TO
KNOWN EARTH
GROUND
A V

4
LC-22SV6U
Precautions for using lead-free solder
1 Employing lead-free solder
PWB 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:
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.
Becareful when replacing parts with polarity indication on the PWB silk.
Service Precaution
In case of removing the following things, it should be replaced with new one.
•Electric conductive cloth tape
•Silicone bond
•Electric tape holding a electric conductive cloth tape
Indicates lead-free solder of tin, silver and copper.
Lead-free wire solder for servicing
Part No. ★Description Code
ZHNDAi123250E J φ0.3mm 250g(1roll) BL
ZHNDAi126500E J φ0.6mm 500g(1roll) BK
ZHNDAi12801KE J φ1.0mm 1kg(1roll) BM
LFa

5
LC-22SV6U
SPECIFICATIONS
Items LC-22SV6U
Model
LCD panel 22”Advanced Super View & BLACK TFT LCD
Number of dots 1,229,760 dots WVGA
Video color systems N358, N443, PAL, PAL-M, PAL-N, SECAM, PAL-60
TV Standard (CCIR) NTSC/PAL-M/PAL-N
TV function TV Tuning System PLL 181 ch.
STEREO MTS+SAP
CATV 125 ch.
3 Dimensional Y/C separation circuit Yes (N358 only)
Digital comb filter Yes
Brightness 430 cd/m
2
Lamp life 60,000 hours
Viewing angles H: 170°V: 170°
Audio amplifier 5 W ×2
Speakers ø2.36 in. (6 cm),2 pcs, Tweeter ø1 in. (2.5 cm),2 pcs.
AV-IN1 AV-IN1, S-VIDEO-IN
AV-IN2 AV-IN2
AV-IN3 AV-IN3/AV-OUT
Terminals COMPONENT COMPONENT-IN, AUDIO-IN
Antenna F-Type
Headphone Mini-jack for stereo (ø3.5 mm)
EXTERNAL SPEAKER R (+, –), L (+, –)
OSD language English/French/Spanish
Power supply DC 13 V, AC 110–240 V, 50/60 Hz
Power consumption 69 W (0.9 W Standby): AC 120 V (with AC adapter)
61W: DC 13 V
Weight 22 lbs. (10 kg), w/o accessories
Accessories Remote control, Batteries (x2), Antenna cable, AC
adapter, AC cord, Cable clamps (x2), Operation Manual
As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for
product improvement without prior notice. The performance specification figures indicated are nominal values of
production units. There may be some deviations from these values in individual units.

6
LC-22SV6U
OPERATION MANUAL
•TV/VIDEO,CH ( )/( ),VOL (–)/(+), and MENU on the main unit have the same functions as the same buttons
on the remote control. Basically, this operation manual provides a description based on operation with the remote
control.
DISPLAY AND CONTROL OVERVIEW
CHVOL
MENU
TV/VIDEO MAIN POWER
MAIN POWER
TV/VIDEO
MENU
CH ( )/( )
VOL (–)/(+)
SLEEP indicator
The SLEEP indicator lights up red when the
SLEEP TIMER is set.
Upper control panel
Remote control sensor
To change the vertical
angle of the LCD TV set,
tilt the screen up to 5
degrees forward or 10
degrees backward. The
TV set can also be
rotated 25 degrees to
right and left. Adjust the
angle so that the TV set
can be watched most
comfortably.
OPC indicator
The Optical Picture Control indicator lights up
green when the BRIGHTNESS is set to
AUTO.
Speaker
OPC sensor
POWER indicator
A green indicator lights when the power is on
and a red indicator lights when in the standby
mode (the indicator will not light when the
main power is off).
Controls
HEADPHONE jack
ANT. (Antenna terminal)
AUDIO (L)
AUDIO (R)
POWER INPUT (DC 13V)
AUDIO (L)
AUDIO (R)
VIDEO
Y
P
R
P
B
AV-IN3/OUT
COMPONENT
AUDIO (L)
AUDIO (R)
VIDEO
S-VIDEO
AV-IN1
Carrying handle
Hold the carrying handle and tilt the
screen while steadying the stand
with your other hand.
You can adjust the screen vertically
up to 5 degrees forward or 10
degrees backward, or rotate 25
degrees to right and left.
●Adjusting the screen view angle
Terminals
AUDIO (L)
AUDIO (R)
VIDEO
AV-IN2
EXTERNAL SPEAKER
(4 , 5W)

7
LC-22SV6U
CH
FAVORITE CH
VOL
POWER
BRIGHT
Virtual
ENTER
DISPLAY
FREEZE
VIEW
MODE
AV
MODE
MUTE CC
TV/VIDEO
SLEEP
PIC.
MENU
MENU
RETURN
AUDIO
ONLY
FLASH-
BACK
FLIP
ABC
REMOTE CONTROL
1 DISPLAY
Display the channel and time information.
Display the receiving channel for 10
seconds.
2 BRIGHT
Adjust the brightness of the screen.
3 POWER
Switch the Liquid Crystal Television power
on or off.
4 FREEZE
Freeze the screen image.
5 SLEEP
Set the sleep timer.
6 MENU RETURN
Return to the previous screen.
7 MUTE
Mute the sound.
8 AUDIO ONLY
Output audio without screen image.
9 VOL (+)/(–)
Set the volume.
10 CH ( )/( )
Select channel.
11 MTS (p. 22)
Select audio settings.
12 Virtual*
Select VIRTUAL DOLBY SURROUND
settings.
13 AV MODE
Select preferred AV MODE.
14 VIEW MODE
Select preferred screen image size.
15 PIC. FLIP
Set the orientation of the picture.
16 ENTER/ ///(Cursor control)
Select a desired item on the screen.
17 MENU
Display the menu screen.
18 TV/VIDEO
Select a Liquid Crystal Television input
source.
19 CC
Display Closed Caption subtitles.
20 FLASHBACK
Return to the previous channel.
21 Channel Select
Set the channel.
22 FAVORITE CH
Sets your favorite registered channels.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
*VIRTUAL DOLBY SURROUND
Manufactured under license from Dolby
Laboratories. “Dolby”, “Pro Logic”and the
double-D symbol are trademarks of Dolby
Laboratories.
ADJUSTMENTS
When using external speakers
•Change the speaker setting to external speakers.
Make sure to connect the speaker jack and cable
polarity ( ) properly
•The speaker jacks have plus (
+
) and minus (
–
)
polarity.
•Plus is red and minus is black.
•The cables are also divided into plus and minus.
•When connecting the left/right speakers, be sure
to connect the plus/minus jacks with the correct
cables.
•Make sure external speakers have 4 ohm and 5 watt
specifications.
•Connect the plus/minus jacks with the correct cables.
Incorrect connection may cause a short.
■Connecting external speakers
Rear view
How to connect the speaker cable
Pull up the lid.
Insert the edge of the
cable.
Put the lid back down.
•Bundle the cables of the external
speakers with clamps as shown above.
Connecting External Speakers
•See page for bundling the cables of the external
speakers.
•Unplug the AC cord from the AC outlet before installing
the speakers.
+
,
–

8
LC-22SV6U
CONNECTING EXTERNAL DEVICES
You can enjoy picture and sound by connecting a VCR or a home video game system to the terminals
located on the rear of the TV set.
When connecting an external device, turn off the power of the main unit first to prevent any possible
damage.
<Example>
•Video camera
•Home video game system
To COMPONENT terminal
•PC connection is not possible.
•For the cable, use a commercially available audio/video cable.
•Only connect audio/video signals to AV-IN1, 2 and 3 terminals. Connecting other signals may result in a
malfunction.
•AV-IN1 has 2 video input terminals: VIDEO and S-VIDEO. When you connect external devices to both terminals
(and if you select AV-IN1), you can only view pictures from the S-VIDEO terminal. To view the picture from the
VIDEO terminal, do not connect any external device to the S-VIDEO terminal.
•For more information about external device connections, see the manuals of your external devices.
Example of external devices that can be connected
To AV-IN2/3 terminal
* If your external device has a component
terminal, COMPONENT connection is
recommended (you can view high-quality
pictures).
<Example>
•DVD Player, etc.
<Example>
•VCR
•Laser disc player
* If your external device has an S-video terminal,
S-VIDEO connection is recommended.
To AV-IN1 terminal
Connecting a VCR, DVD player or a video camera (AV-IN1/2/3/COMPONENT)
•If your VCR (or other external devices) has an S-video terminal, S-VIDEO connection is recommended. (Use an
S-video cable.)
•When you connect external devices to both S-VIDEO and VIDEO terminals (and if you select AV-IN1), you can
only view pictures from the S-VIDEO terminal.
•You cannot view multiple or synthesized pictures by connecting two or more external devices. When connecting
an external device, use care to connect the video and audio cables to the corresponding terminals.
To AV-IN2/3 terminal
To audio/video output
terminal
To COMPONENT input
(Video) terminal
To COMPONENT output
(Audio) terminal
To AV-IN1 terminal
To audio/video output
terminal
Video
Audio (L)
Audio (R)
Audio (L)
Audio (R)
Y
P
B
P
R
VCR
DVD Player
Video
Audio (L)
Audio (R)
Video camera
To S-VIDEO input
terminal
To S-video output
terminal
S-video
VCR
To COMPONENT input
(Audio) terminal
To COMPONENT output
(Video) terminal

9
LC-22SV6U
CONNECTING EXTERNAL DEVICES (Continued)
Outputting video and audio (video output)
You can output video and audio signals from the TV set through the AV output terminals (AV-OUT).
•When using AV3 as an output terminal, select PRESET in the MENU and set AV3 IN/OUT to OUT.
•The factory setting for AV3 IN/OUT is IN.
•AV3 has 2 OUT modes
•When using the S-video input for AV-IN1, no video output will be made to the AV output terminal, but audio
output will be made for connection to external audio systems.
Connect to a VCR,
audio amplifier, etc.
M
ENU
SLEEP TI
M
ER
PRESET
CLOSED CAPTION
V–CHIP BLOCK
SET UP
SELECT: EXIT:
AV ADJUST
ENTER:
ENTER
MENU
BRIGHTNESS [BRIGHT]
MTS [STEREO]
AUTO PO
W
ER OFF
PICTURE FLIP
AV3 IN/OUT
EXIT:
RETURN
[OFF ]
[NOR
M
AL ]
[IN ]
NOISE CLEAN [OFF ]
AUDIO ONLY [OFF ]
COOL CL IMATE [OFF ]
PRESET
ENTER:
ENTER
MENU
SLEEP T I
M
ER
SELECT :
ENTER:
EXIT:
ENTER
RETURN
SLEEP T I
M
ER [––– RE
M
AIN]
ENTER
ENTER:
CC/ TEXT [OFF]
SELECT : EXIT:
RETURN CLOSED CAPTION
INPUT SECRET NO.
––––
EXIT:
MENU
MENU
MENU
VIDEO ADJUST
AUDIO ADJUST
SELECT :
SELECT :
ENTER: EXIT:
AV ADJUST
RETURN
ENTER
MENU
BLUE SCREEN [OFF]
SPEAKER [ INTERNAL]
COLOR SYSTEM
LANGUAGE
SELECT : EXIT:
RETURN SET UP
CH–SETTING
ENTER
ENTER:
MENU
CLOCK
SELECTING MENU ITEMS
•This LCD TV set allows you to adjust the various settings using the menu screen. Select the desired
menu item by following the steps below and then refer to the indicated page for details.
1
Press MENU to display the MENU
screen.
2
Press /to select the desired
menu item, and press ENTER.
3
Press MENU to exit.
•The TINT display only appears when
the color system is set to N358 or
N443.
•The displayed items differ depending
on the setting conditions.
•The selected item changes to yellow.
•Items in magenta cannot be se-
lected.
•This product is factory set to comply
with the color system in the United
States (NTSC-N358). For Brazil
(PAL-M), Argentina (PAL-N) and
Uruguay (PAL-N), set the color
system before using this product.
•To return to the previous screen,
select RETURN on the screen or
MENU RETURN on the remote
control.
•You can adjust some settings with
the special buttons: VIEW MODE,
SLEEP, BRIGHT, PIC. FLIP, AUDIO
ONLY, AV MODE and FREEZE.
Selecting Menu Items
CH
FAVORITE CH
VOL
POWER
BRIGHT
Virtual
ENTER
DISPLAY
FREEZE
VIEW
MODE
AV
MODE
MUTE CC
TV/VIDEO
SLEEP
PIC.
MENU
MENU
RETURN
AUDIO
ONLY
FLASH-
BACK
FLIP
ABC
* The illustrations and on-screen displays in this operation manual are for
explanation purposes and may vary slightly from the actual operations.
ENTER/
/
MENU
MENU
RETURN

10
LC-22SV6U
DIMENSIONS
Unit: inch/(mm)
22
29
/ 32 (582)
19
25
/ 64 (492.6)
10
5
/
8
(270.2)
14
15
/
32
(367)
7
7
/
64
(180.7)
20
5
/
64
(510)
18
3
/
16
(462)
1
47
/
64
(44)
16
17
/
32
(420)
4
21
/ 64 (111)
2
31
/ 32 (76)
9
27
/ 32 (250)
7
3
/ 16 (182.4)
3
15
/ 16 (100)
3
15
/
16
(100)

11
LC-22SV6U
REMOVING OF MAJOR PARTS
1. Remove the two terminal covers.
2. Remove the stand fixing screws(4 pcs.).
3. Remove the speaker box fixing screws(4 pcs.).
4. Remove the cabinet B fixing screws(8 pcs.).
5. Remove the cabinet B after opening from the direction of arrow.
6. Remove the reinforcement angle fixing screws(7 pcs.).
7. Release the wire holder at 3 locations.
8. Detach the connector from each PWB.
Terminal Cover (L)
Terminal Cover (S)
Speaker Box
Cabinet B
Stand
2
3
5
4
4
1
1
6
8
8
Reinforcement
Angle
Inverter PWB
6
P131
SC4502
SC1101
SC3202
SC1203
SC3201
SC4501
SC4902
P6555
P6551
P6552
P6553
P6554
CN201
P3501
P404
P701
P3201
P3700
P101
CN1
P3705
P3501
CN3
CN2
P402
SC3504
Wire HolderAV2 PWB
AV1 PWB Operation PWB
7
Wire Holder
7
88
8

12
LC-22SV6U
9. Remove the top cover ass’y fixing screws(2 pcs.).
10. Remove the operation PWB fixing screws(2 pcs.).
11. Remove the 1bit AMP unit fixing screws(2 pcs.).
12. Remove the EXT-SP terminal PWB fixing screws(2 pcs.).
13. Remove the speaker fixing angle(R) fixing screws(3 pcs.).
14. Remove the R/C,LED PWB fixing screws(2 pcs.).
15. Remove the speaker fixing angle(L) fixing screws(4 pcs.).
16. Remove the SP-Jack PWB fixing screws(2 pcs.).
17. Remove the AV2 PWB fixing screw(2 pcs.).
18. Remove the AV1 PWB fixing screw(3 pcs.).
19. Remove the chassis frame fixing screws(4 pcs.).
20. Remove the main PWB fixing screws(5 pcs.).
21. Remove the inverter PWB fixing screws(4 pcs.).
22. Remove the LCD panel unit fixing screws(2 pcs.).
1bit AMP Unit
SP-Jack PWB
RC, LED PWB
EXT-SP Terminal
PWB
911
10
14
12 16
13 15
AV1 PWB
Chassis Frame
18
19 17
21
20
22
19
INVERTER
PWB
MAIN PWB
AV2 PWB

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LC-22SV6U
»Precautions in handling the LCD panels
1. Work in a clean room(with humidities below 50%).
2. Be sure to wear an anti-static armband.
3. Handle the panels on an electro-conductive mat.
4. Be cafeful not to fall, shake and shock the panels.
23. Remove the LCD panel unit fixing screws(4 pcs.).
24. Remove the ITO earth spring fixing screw(1 pc.).
25. Remove the reflection/deflection, prism and diffusion sheets and diffusion panel.
26. Remove the lamp fixing holder(Top) fixing screws(4 pcs.).
27. Remove the lamp unit-A/B.
28. Remove the lamp fixing holder(Bottom) fixing screws(2 pcs.)
29.Remove the lamp clips(2 pcs.).
28
28
29
23
26
26
27
25
24
ITO Earth Sprinhg
(MSPRP1220CEFW)
Diffusion Panel
(PCOVU0108CEZZ)
Diffusion Sheet
(PSHEP0294CEZZ)
Prism Sheet
(PSHEP002WJZZ)
Reflection/Deflection Sheet
(PSHEPA003WJZZ)
Lamp Fixing Holder(Top)
(LHLDZA218WJKZ)
Lamp Clip
(LHLDZA223WJKA)
Lamp Fixing Holder(Bottom)
(LHLDZA219WJKA)
Lamp Fixing Holder(Bottom)
(LHLDZA219WJKA)
Back Shield Panel
Lamp Unit-A
(KLMP-A022WJZZ)
Lamp Unit-B
(KLMP-A023WJZZ)
Lamp Fixing Holder(Top)
(LHLDZA218WJKZ)

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LC-22SV6U
ADJUSTING PROCEDURE OF EACH SECTION
The best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjust
as follows.
1. Preparations
To supply power, use a specific AC adapter or a stable DC power supply.
AC adapter: UADP-A048WJPZ
DC power supply: 13 V, 6.0 A
2.Adjustment procedure
(1) Adjusting the checker
Power on (initialization) →Adjustment process mode →Adjustment (+B adjustment)
(2) Finish-process adjustments
Assembling →Power on→Adjustment process mode (remote controller) →Common bias, TAMP (contrast)
and white balance adjustments
3. Calling the adjustment process mode
There are the following two ways.
(1) Connect KEY3 (pin (81) of microprocessor) and KEY4 (pin (82) of microprocessor) to GND, and turn on the
power.(Get the set initialized first and then go to the adjustment process mode. If going without initialization,
connect either of KEY3 and KEY4 to GND and turn on the power.)
(2) Hold down the TV/VIDEO and MENU keys at once and turn on the power switch. ("K" appears at the top left
of the screen to indicate that the set is in the inspection-ready mode.) →Press the CH (Ù) andVOL (–) keys
at once.(The adjustment process mode screen shows up.) ...To quit this mode, turn off the power.(The power
switch either on the set or on the remote controller will do.)
4.Key operation in the adjustment process
(1) Selecting receiving channels
∫Using the CH (ù)/ (Ù) keys, tune up and down actual broadcast channels.
Give a press to the key, and the channels are tuned up and down one by one.
Hold the key down, and the next receivable channel will be searched for.
∫Direct channel selection can be made with the 0 thru 9 and 100 keys.
(2) Various adjustments
∫All the items are adjusted one by one with the MENU, CH (ù)/ (Ù),VOL (+)/(–) and cursor control keys (on
the set and on the remote controller).
∫Press the MENU and cursor "keys, and the current adjustment item goes to the next one.
∫Press the MENU and cursor "keys with the bottom item selected, and the top item on the next page will be
picked up instead.
∫Press the TV/VIDEO and cursor 'keys, and the current adjustment item goes back to the preceding one.
∫Press the TV/VIDEO and cursor 'keys with the top item selected, and the bottom item on the preceding
page will be picked up instead.
∫Press the AUTO PRESET key, and the top item on the next page will be picked up in all cases.(Page 1 →
Page 2 →Page 1 ...)
∫Press the MANU MEMORY key, and the top item on the current page will be picked up in all cases.
∫Press the (+)/(–) key or the cursor |/\key, and the setting of a selected item will be turned up and down.

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LC-22SV6U
(3) Selecting the items
∫Press the ENTER key (or the cursor |/\or VOL (+)/(–) N key) at any item other than I2C DATA on Page 2
of the 1st category, and the top of Page 1 of the 2nd category will appear onscreen. (Press ENTER at the
MSP item, for example, and the TV GEQ BAND1 item on MSP Page 1 of the 2nd category will show up.)
∫Using the MENU, cursor '/", MANU MEMORY, AUTO PRESET and similar keys, the pages and items
can be selected only within the setting menu of each of the 1st and 2nd categories. (Press the AUTO
PRESET key on the G/A menu of the 2nd category, for example, and the pages will change in the order of
G/A1 →G/A2 →G/A3 →G/A1.)
∫To return from the 2nd to the 1st category, press the ENTER key.The cursor will then move back to the
setting item of the 2nd category. (Press the MENU RETURN key at the VPC item of the 2nd category, for
example, and the VPC item on Page 2 of the 1st category will reappear.)
(4) Pages 1 and 2 of G/A
∫With the PAL/NTSC item selected, press the (+)/(–) or cursor |/\key, and the register select mode will be
called up and the cursor will move to Address 01.
∫Press the CH (ù)/ (Ù) key, and the cursor will move up and down.With the cursor |/\key, it will move right
and left.Then press the ENTER key.
∫Now the cursor moves to the selected setting.With the VOL (+)/(–) or cursor |/\key, the settings change
from 00 to FF.
5.Initialization
Connect pins (81) and (82) of IC3501 (microprocessor) to GND, and turn on the power.
6.Model-by-model transmission data
Nothing particular.
7.Adjustments
(1) +B Adjustment (R3717)
a) Receive the standard color bar signal.
b) Connect a digital voltmeter to TP3722. Adjust R3717 to achieve the 5.00±0.02V.
Note: The 5.00V level is used as reference for all the supply voltages. Finely adjust and maintain this level.
(2) +B Adjustment (R4525)
a) Receive the standard color bar signal.
b) Connect the digital voltmeter to TP4531. Adjust R4525 to achieve the 13.00±0.05V.
Note:This supply voltage is used as reference for all the gradation voltage. Finely adjust and maintain this
level.
(3) Common bias adjustment: COM BIAS on Adjust Process Page 1
Make this adjustment each for the 50 Hz and 60 Hz frequencies.
Set the input signal according to the indication.
a) Call up the adjustment process mode.
b) Select G/A on Adjust Process Page 2 first and then "14: DOT REVERSE FLICKER PATTERN 2" in "G/A
TEST PATTERN 1" on Page 3.
c) Then select "COM BIAS 60/COM BIAS 50" on Adjust Process Page 1.
d) Make the setting so that the flicking onscreen becomes minimum.

16
LC-22SV6U
(4) TAMP adjustment
a) Receive the standard color bar signal.Or using a signal generator, have the pattern, as shown in Fig. B,
displayed.
b) See if the reading of "Y" on Adjust Process Page 1 is as specified. If not, adjust the "NTSCTAMP" setting
on the same page to get the "Y" value somewhere between "160" and "168".
c) If the "NTSC TAMP" setting has been readjusted, write the final value to the "PAL-M TAMP" and "PAL-N
TAMP" items.
White
75%
Fig. A Half-color bar signal with white 75% at top left
White 75%
Fig. B TAMP adjustment pattern (NTSC γ=1.00)
1 WLD24 VER 1.00
INCH SIZE 22
MODEL SV6U
ERROR NO RESET 0
1 BIT AMP ERR 0
PUBLIC MODE OFF
COM BIAS 60 100
COM BIAS 50 100
NTSC TAMP 20
PAL-M TAMP 20
PAL-N TAMP 20
TAMP L 160
Y 127
TAMP H 168
Fig. C Page 1 of adjustment process menu

17
LC-22SV6U
White 80% Grey 20%
Fig. D White balance adjustment pattern (NTSC signal)
(5) White balance adjustment
a) Using a signal generator, get the pattern, as shown in Fig. D, displayed.
b) Look at the category "FLI2310" on the adjustment process menu. Make sure that the "R CUT OFF", "G
CUT OFF" and "B CUT OFF" settings are 0, +5 and 0, respectively, and that the "R DRIVE", "G DRIVE"
and "B DRIVE" settings are all 100. (Readjust these settings if set otherwise.)
c) Adjust the CUTOFF and DRIVE settings for each of the R, G and B colors on the right-hand screen in Fig.
D.Then adjust the white balance setting.
*1 Before making these adjustments, warm up the set for 30 minutes.
*2 Keep the CUTOFF as well as DRIVE settings in the range of ±0~25.
*3 These parameters can be controlled through the I2C external bus.
(FLI2310):2
R CUT OFF 0
G CUT OFF +5
B CUT OFF 0
R DRIVE 100
G DRIVE 100
B DRIVE 100
R CUT OFF OFFSET +4
G CUT OFF OFFSET -9
B CUT OFF OFFSET +4
R DRIVE OFFSET 0
G DRIVE OFFSET 0
B DRIVE OFFSET -1
Fig. E Page 2 of Adjustment process menu "FLI2310"
Standard Adjusting Value
White x y y (Reference)
80% 0.292 0.297 154
20% 0.260 0.256 1.797
Adjusting Range ±0.002
Checking Range ±0.003

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LC-22SV6U
(6) 480P signal white balance adjustment
a) Using a 480P signal generator, feed the following pattern signal through the COMPONENT terminal.
Then set the screen mode to STRECH. (This automatic adjustment works only in the STRECH screen
mode.)
b) Look at the category "AD9883" on the adjustment process menu. Modify the "R/G/B GAIN" and "R/G/B
OFFSET" settings as follows.
"R/G/B GAIN" from 240 to 140
"R/G/B OFFSET" from 55, 65 and 55 to 70, 50 and 70, respectively
c) Modify the "R/G/B GTAR" settings as follows.
"R/G/B GTAR" from D9, BD and D7 to D8, BC and D6, respectively
d) Still on the category "AD9883" adjustment process menu screen, make automatic adjustment with "AUTO
GAIN OFFSET".
e) Finally adjust the "R OFFSET" setting to -1.
*1 Make this adjustment after 30 minutes of aging.
*2 "AUTO GAIN OFFSET": Automatic adjustment is going on with "RUN" appearing. It ends when "OFF"
appears instead.
*3 These parameters can be controlled through the I2C external bus.
Fig. G White balance ajustment pattern (480P COMPONENT signal)
W
100%
GY C M R Blue Black
100% modulation color bar signal
(AD9883A):1
AD DATA 000000
AD DATA WAIT
AUTO GAIN OFFSET OFF
R GAIN 140
G GAIN 140
B GAIN 140
R OFFSET 70
G OFFSET 50
B OFFSET 70
RGTAR GGTAR BGTAR D8 BC D6
RGCAL GGCAL BGCAL 00 00 00
ROCAL GOCAL BOCAL 80 00 80
Fig. H Page 1 of Adjustment process menu "AD9883A"

19
LC-22SV6U
~
75Ω
Measuring point Video input terminal
75Ω
Video output terminal Measuring point
8.Inspection Process
1) Input/output terminal impedances and level inspection
a) Video input terminal
Input signal: 1 Vp-p, terminated with 75-ohm impedance
Using the oscilloscope, make sure the level is 1±0.2Vp-p.Be also sure that the contrast is similar to that of
received TV image.
b) Video output terminal
Make sure the monitor output terminal level is 1.0±0.2Vp-p (at the specified input to the video input terminal).
9. Factory settings
Make the factory settings following way.
1. Hold down the set's TV/VIDEO and MENU keys at once, and turn on the main power.
(Then make sure "K" appears in magenta at the top left of the screen.)
2. Press the set's CH(ù) and VOL(+) keys at once for a second or so.
3. Make sure "SETTING" appears at the top left of the screen, which means that the factory settings are now
being made.
4. With the factory settings completed, the "SETTING" indication changes to "COMPLETE".
Note: Just after the factory settings have been made, turn off the power switch.
(At the next power-on, the set will get started in the EZ SETUP mode.With the factory settings over, do
not press any unnecessary keys. Otherwise the set may malfunction.)

20
LC-22SV6U
Factory settings
Item Initial setting Item Initial setting
LAST CH 2ch CAPTION MODE OFF
LAST CATV AIR MPAA RATING _ _ _ _
LAST POWER OFF TV GUIDELINES RATING _ _ _ _
FLASH BACK 2ch TV GUIDELINES CONTENT ALL UNBLOCK
VOLUME 20 V-CHIP STATUS OFF
SLEEP TIMER OFF BLUE SCREEN OFF
PICTUER 35 LANGUAGE ENGLISH
TINT 0 SKIP DATA AIR ALL SKIP
COLOR 3 SKIP DATA CATV ALL SKIP
BLACK LEVEL 0 FAVORIRES ALL"- - -"
SHARPNESS 0 EDS CH SET AUTO
COLOR TEMP. STANDARD EDS CH _ _
TREBLE 0 TIME 12:00 AM
BASS 0 DST OFF
BALANCE 0 COLOR SYSTEM (TV) N358
DOLBY VIRTUAL OFF COLOR SYSTEM (AV1) N358
SPEAKER INTERNAL COLOR SYSTEM (AV2) N358
BRIGHTNESS BRIGHT COLOR SYSTEM (AV3) N358
AUTO POWER OFF OFF START-UP IN EZ SETUP ON
PIC FLIP NORMAL SECRET No. CLEAR
AV3 IN/OUT IN AV MODE DYNAMIC
AUDIO ONLY OFF MTS MODE STEREO
NOISE CLEAN OFF VIEW MODE SMART STRETCH
COOL CLIMATE OFF
Adjustment process
ERROR NO RESET 0
1BIT AMP ERR 0