Sharp LC-32A40L User manual

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.
MODEL
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LCD COLOR TELEVISION
CONTENTS
#########
SERVICING NOTICES ON CHECKING ..............................................................................
HOW TO ORDER PARTS ....................................................................................................
IMPORTANT.........................................................................................................................
ABOUT LEAD FREE SOLDER (PbF) ..................................................................................
GENERAL SPECIFICATIONS..............................................................................................
DISASSEMBLY INSTRUCTIONS ........................................................................................
SERVICE MODE LIST..........................................................................................................
WHEN REPLACING EEPROM (MEMORY) IC ....................................................................
ELECTRICAL ADJUSTMENTS ............................................................................................
TROUBLESHOOTING GUIDE .............................................................................................
BLOCK DIAGRAM ................................................................................................................
PRINTED CIRCUIT BOARDS ..............................................................................................
SCHEMATIC DIAGRAMS ....................................................................................................
WAVEFORMS ......................................................................................................................
MECHANICAL EXPLODED VIEWS .....................................................................................
REPLACEMENT PARTS LIST .............................................................................................
Page
A1-1
A1-1
A1-1
A1-2
A2-1~A2-5
B1-1~B2-2
C-1
C-2
D-1~D-5
E-1~E-6
F-1~F-12
G-1~G-12
H-1~H-42
I-1~I-3
J-1~J-4
K1-1~K2-12
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LC-32A40L

SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES
As for the places which need special attentions,
they are indicated with the labels or seals on the
cabinet, chassis and parts. Make sure to keep the
indications and notices in the operation manual.
3. USE THE DESIGNATED PARTS
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
The parts in this equipment have the specific
characters of incombustibility and withstand
voltage for safety. Therefore, the part which is
replaced should be used the part which has
the same character.
Especially as to the important parts for safety
which is indicated in the circuit diagram or the
table of parts as a mark, the designated
parts must be used.
5. PUT PARTS AND WIRES IN THE
ORIGINAL POSITION AFTER
ASSEMBLING OR WIRING
There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.
PERFORM A SAFETY CHECK AFTER
SERVICING
6.
Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
1.
2.
3.
4.
Unplug the plug from the AC outlet.
Remove the antenna terminal on TV and turn
on the TV.
Insulation resistance between the cord plug
terminals and the eternal exposure metal
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1].
If the insulation resistance is less than 1M
ohm, the inspection repair should be
required.
[Note 1]
If you have not the 500V insulation
resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
Earphone jack
A1-1
4. BE CAREFUL WITH THE
LCD PANEL
Avoid a shock to the panel while servicing.
Take enough care to deal with it.
When you exchange IC and Transistor with a heat sink, apply silicon grease (YG6260M) on the contact
section of the heat sink. Before applying new silicon grease, remove all the old silicon grease.
(Old grease may cause damage to the IC and Transistor).
IMPORTANT
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
1. MODEL NUMBER and VERSION LETTER
The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
found at the end of the SERIAL NUMBER.
2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
HOW TO ORDER PARTS

PCBs (manufactured) using lead free solder will have a PbF printing on the PCB.
(Please refer to figures.)
Caution:
Pb free solder has a higher melting point than standard solder;
Typically the melting point is 86°F~104°F(30°C~40°C) higher.
Please use a soldering iron with temperature control and adjust it to 650°F ±20°F (350°C ±10°C).
In case of using high temperature soldering iron, please be careful not to heat too long.
Pb free solder will tend to splash when heated too high (about 1100°F/ 600°C).
All products with the printed circuit board with PbF printing must be serviced with lead free solder.
When soldering or unsoldering, completely remove all of the solder from the pins or solder area,
and be sure to heat the soldering points with the lead free solder until it melts sufficiently.
Distinction of PbF PCB:
Recommendations
Recommended lead free solder composition is Sn-3.0Ag-0.5Cu.
ABOUT LEAD FREE SOLDER (PbF)
•
•
•
A1-2

GENERAL SPECIFICATIONS
G-1 TV LCD LCD Size / Visual Size 31.5 inch / 800.4mmV
System LCD Type Color TFT LCD
Number of Pixels 1366(H) x 768(V)
View Range Left/Right 88/88 degree
Up/Down 88/88 degree
Color System NTSC/PAL-M/PAL-N
Speaker 2 Speaker
Position Front
Size 2.2 x 5.0 inch
Impedance 4 ohm
Sound Output Max 10W + 10W
10%(Typical) ---
G-2 Tuning Broadcasting System Analog US-M, Bra-PAL-M, Arge-PAL-N
System Digital --
Tuner and System 1Tuner
Receive CH Destination US (W/CABLE)
CH Coverage 2~69, 4A, A-5~A-1, A~I, J~W, W+1~W+84
Intermediate Digital --
Frequency Analog Picture(FP) 45.75MHz
Sound(FS) 41.25MHz
FP-FS 4.50MHz
Preset CH No
Stereo/Dual TV Sound US-Stereo
Tuner Sound Muting Yes
G-3 Signal Video Signal Input Level 1 V p-p/75 ohm
Output Level --
S/N Ratio (Weighted) --
Horizontal Resolution at DVD Mode --
--
RGB Signal Output Level --
Audio Signal Input Level 0.85 V p-p/50k ohm
Output Level at DVD --
at TV 0.85 V p-p/1k ohm
0-1.70 V p-p/1k ohm (Variable out mode)
Digital Output Level --
S/N Ratio at DVD (Weighted) --
Harmonic Distortion --
Frequency Response : at DVD --
at Video CD --
at SVCD --
at CD --
G-4 Power Power Source AC 110-240V, 50/60Hz
DC --
Power Consumption at AC 160W at 120V, 60Hz
at DC --
Stand by (at AC) 1W at 120V, 60Hz
Energy Star Yes
Per Year -- kWh/Year
Protector Power Fuse Yes
Safety Circuit Yes
IC Protector(Micro Fuse) Yes
G-5 Regulation Safety CB(IEC60065:01)
Radiation CISPR 13:2001+A1:2003
Laser --
G-6 Temperature Operation 0oC ~ +40oC
Storage -20oC ~ +60oC
G-7 Operating Humidity Less than 80% RH
G-8 Clock and Clock Yes
Timer Sleep Timer Max Time 120 Min
Step 10 Min
On Timer Program No
Off Timer Program No
Game Timer No
Wake Up Timer No
Timer Back-up (at Power Off Mode) more than -- Min Sec
A2-1

GENERAL SPECIFICATIONS
G-9 Remote Unit RC-MP
Control Glow in Dark Remocon No
Remocon Format SHARP
Format SHARP
Custom Code 10000 / 10001
Power Source Voltage(D.C) 3V
UM size x pcs UM-4 x 2 pcs
Total Keys 52 Keys
Keys POWER Yes
FUNCTION Yes
Source POWER Yes
DISPLAY Yes
LIGHT Yes
SEARCH+ Yes
SEARCH- Yes
PLAY Yes
REC Yes
STOP Yes
PAUSE Yes
SKIP+ Yes
SKIP- Yes
VIEW MODE Yes
1Yes
2Yes
3Yes
4Yes
5Yes
6Yes
7Yes
8Yes
9Yes
0Yes
.Yes
ENT Yes
INPUT Yes
FLASH BACK Yes
VOL+ Yes
VOL- Yes
CH+ Yes
CH- Yes
SURROUND Yes
MUTE Yes
FREEZE Yes
MENU Yes
LEFT Yes
ENTER Yes
RIGHT Yes
UP Yes
DOWN Yes
EXIT Yes
RETURN Yes
FAVORITE A Yes
FAVORITE B Yes
FAVORITE C Yes
FAVORITE D Yes
FAVORITE Yes
SLEEP Yes
AUDIO Yes
AV MODE Yes
CC Yes
A2-2

GENERAL SPECIFICATIONS
G-10 Features Auto Shut Off Yes
Auto Search No
Power On Memory No
Comb Filter Yes
NTSC: 3 D
PAL: 5 Lines
Game Position No
Auto Setup(Language/CH Program) No
Picture Setting(TV) Yes
AV Mode(Picture Preference) Yes
Brightness , Contrast , Color Yes
Tint Yes
Sharpness Yes
Color Temperature Yes
Cable Clear No
Picture Setting(PC) No
BRIGHTNESS , CONTRAST No
HOR POSITION , VER POSITION No
PHASE , CLOCK No
AUTO ADJUST No
RED , GREEN , BLUE No
Audio MTS Yes
Tone Control (Bass/Treble/Balance) Yes
Stable Sound No
Surround No
BBE No
SRS WOW (SRS 3D/Focus/Tru Bass) Yes
Valiable Audio Out Yes
Tuning CH Program Yes
Air/Cable Yes
ADD/DELETE Yes
Label CH Label Yes
Video Label Yes
Color System Yes
Favorite CH Yes
V-Chip Yes
Type USA Type
RRT Setup No
Lock Hotel Lock No
Channel Lock No
Video Lock No
Panel Lock No
OSD Language English
Portuguese
Spanish
Closed Caption Yes
CC Advanced No
View Mode (Picture Size) Yes
Picture Scroll Yes
Cinema Mode Yes (2:3 Pull Down Only)
Aspect Yes (NTSC Only)
Backlight Yes
PFC(Power Factor circuit) No
Freeze frame Yes
PIP/POP No
Direct Input Selection Yes
Digital Out Dolby Digital No
MPEG No
PCM No
DTS No
PC Monitor Input No
VGA (640x480) No
VGA (720x400) No
WVGA (848x480) No
SVGA (800x600) No
XGA (1024x768) No
WXGA (1280x768) No
WXGA (1280x720) No
WXGA (1360x768) No
SXGA (1280x1024) No
A2-3

GENERAL SPECIFICATIONS
HDMI Input Yes
VGA (640x480) Yes (60Hz)
720x480i (4:3) Yes (60Hz)
720x480i (16:9) Yes (60Hz)
720x480p (4:3) Yes (60Hz)
720x480p (16:9) Yes (60Hz)
720x576i (4:3) Yes (50Hz)
720x576i (16:9) Yes (50Hz)
720x576p (4:3) Yes (50Hz)
720x576p (16:9) Yes (50Hz)
1280x720p Yes (50/60Hz)
1920x1080i Yes (50/60Hz)
Component Input Yes
720x480i (4:3) Yes (60Hz)
720x480i (16:9) Yes (60Hz)
720x480p (4:3) Yes (60Hz)
720x480p (16:9) Yes (60Hz)
720x576i (4:3) Yes (50Hz)
720x576i (16:9) Yes (50Hz)
720x576p (4:3) Yes (50Hz)
720x576p (16:9) Yes (50Hz)
1280x720p Yes (50/60Hz)
1920x1080i Yes (50/60Hz)
G-11 Accessories Owner's Manual Language English/Portuguese/Spanish
w/Guarantee Card No
Remote Control Unit Yes
Rod Antenna No
Poles --
Terminal --
Loop Antenna No
Terminal --
U/V Mixer No
DC Car Cord (Center+) No
Guarantee Card No
Warning Sheet No
Circuit Diagram No
Antenna Change Plug No
Service Facility List No
Important Safeguard No
Dew/AHC Caution Sheet No
Quick Set-up Sheet No
Battery Yes
UM size x pcs UM-4 x 2 pcs
OEM Brand No
AC Adapter No
AC Cord (for AC Adapter) No
AC Cord (Flat Polarity Plugs) Yes
Cable Cramp Yes
Stand Yes
Stand Screw Yes
Hexagon Wrench Yes
AV Cord (2Pin-1Pin) No
Registration Card (NDL Card) No
300 to 75ohm Antenna Adapter No
A2-4

GENERAL SPECIFICATIONS
G-12 Interface Switch Top Power (Tact) Yes
Channel Up/Menu Up Yes
Channel Down/Menu Down Yes
Volume Up/Menu > Yes
Volume Down/Menu < Yes
Menu No
Play No
Eject No
Skip+, Search+ No
Skip-, Search- No
Still/Pause No
Stop No
Main Power SW No
Input Select Yes
Rear Main Power SW No
Indicator Power/Stand-By Yes (Green / Red)
On Timer No
Terminals Rear Video Input 1 RCA x 1
Audio Input 1 RCA x 2(L/MONO, R)
S - Input 1 Yes
Video Input 2 RCA x 1
Audio Input 2 RCA x 2(L/MONO, R)
S - Input 2 Yes
Video Output No
Audio Output RCA x 2 (Variable) (L, R)
Component Input 1 RCA x 3
Analog Audio RCA x 2(L/MONO, R)
Component Input 2 RCA x 3
Analog Audio RCA x 2(L/MONO, R)
HDMI Input 1 HDMI x 1
Analog Audio RCA x 2(L/MONO, R)
HDMI Input 2 HDMI x 1
Analog Audio No
Sub Woofer Out No
PC Monitor Input No
Analog Audio No
Digital Audio Output No
DC Jack (Center +) No
VHF/UHF Antenna Input F Type
AC Inlet Yes
Side Video Input 3 No
Audio Input 3 No
S - Input 3 No
Other Terminal No
G-13 Set Size Approx. W x D x H (mm) 821.0 x 273.5 x 650.5
w/o Handle, Stand Approx. W x D x H (mm) 821.0 x 117.0 x 591.5
G-14 Weight Net (Approx.) 17.5kg (38.6lbs)
Net w/o Handle, Stand (Approx.) 15.6kg (34.4lbs)
Gross (Approx.) 20.5kg (45.2lbs)
G-15 Carton Master Carton No
Content --- Sets
Material --- / ---
Dimensions W x D x H(mm) ---
Description of Origin ---
Gift Box Material Double/Brown
W/Color Photo Label No
W/Handle No
Dimensions W x D x H(mm) 917 x 271 x 716
Description of Origin Yes
Drop Test 1 Corner / 3 Edges / 6 Surfaces
Height (cm) 32
Container Stuffing (40' container) 327 Sets/40' container
G-16 Material Cabinet Front PS 94V0 NON-DECABROM
Rear PS 94V0 NON-DECABROM
Jack Panel --
PCB Non-Halogen Demand No
Eyelet Demand Yes
G-17 Environment Environmental standard requirement Green procurement of SHARP
Pb-free Phase3(Phase3A)
Measures for Whisker Yes
Rohs Yes
A2-5

DISASSEMBLY INSTRUCTIONS
B1-1
1. REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1.
2. Remove the 19 screws 1. Remove the Back Cabinet in the direction of arrow.
Fig. 1-1
Back Cabinet
1-3:
1-2:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Remove the 4 screws 1.
Remove the Stand Ass'y in the direction of arrow (A).
Remove the 4 screws 2.
Remove the 7 screws 3.
Remove the Angle Back 1/2 in the direction of arrow (B).
Remove the 5 screws 4.
Remove the Plate Jack 2 in the direction of arrow (C).
Remove the 9 screws 5.
Remove the Plate Jack 1 and Shield Jack in the direction
of arrow (D).
Fig. 1-2
1
1
1
1
1
1
11
11
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
3
3
3
3
3
33
4
5
4
55
Stabd Ass'y
Angle Back 2
Angle Back 1
Plate Jack 2
Plate Jack 1
Shield Jack
(A)
(B) (C)
(D)
STAND ASS'Y/ANGLE BACK 1/2/PLATE JACK 1/2
(Refer to Fig. 1-2)
POWER PCB/SCALER PCB/AV PCB
(Refer to Fig. 1-3)
1.
2.
3.
4.
5.
6.
7.
8.
9.
Disconnect the following connectors:
(CP506, CP507, CP508, CP511, CP514).
Remove the 9 screws 1.
Remove the Holder AC-Inlet and Power PCB in the
direction of arrow (A).
Disconnect the following connectors:
(CP802, CP803, CP2200, CP3201, CP3602, CP7203).
Remove the 10 screws 2.
Remove the Shield Scaler and Scaler PCB in the
direction of arrow (B).
Disconnect the following connectors:
(CP301, CP303, CP3802, CP3803, CP4202).
Remove the 6 screws 3.
Remove the AV PCB in the direction of arrow (C).
Fig. 1-3
1
1
1
1
1
1
1
1
1
Holder AC-Inlet
Power PCB (A)
2
2
222
2
2
2
2
2
Shield Scaler
Scaler PCB
3
3
3
3
3
AV PCB
(B)
(C)
3

DISASSEMBLY INSTRUCTIONS
B1-2
Fig. 1-4
(A)
1
Regulator PCB
(B)
22
Remocon PCB
3
3
3
3
3
(D)
Operation PCB
Plate Button
1-5: LCD COVER/LCD PANEL (Refer to Fig. 1-5)
1.
2.
3.
4.
Remove the 8 screws 1.
Remove the LCD Cover in the direction of arrow (A).
Remove the 4 screws 2.
Remove the LCD Panel in the direction of arrow (B).
Fig. 1-5
Front Cabinet
(A)
1
2
LCD Cover
LCD Panel
(B)
1
1
1
11
1
1
2
2
2
1-4: REGULATOR PCB/REMOCON PCB/OPERATION
PCB (Refer to Fig. 1-4)
1.
2.
3.
4.
5.
6.
Remove the 4 screws 1.
Remove the Regulator PCB in the direction of arrow (A).
Remove the 2 screws 2.
Remove the Remocon PCB in the direction of arrow (B).
Remove the 5 screws 3.
Remove the Plate Button and Operation PCB in the
direction of arrow (C).
11
1

B2-1
Masking Tape
(Cotton Tape)
DISASSEMBLY INSTRUCTIONS
2.
REMOVAL
IC
Put Masking Tape (cotton tape) around the Flat Package
IC to protect other parts from any damage.
(Refer to Fig. 2-1.)
1.
Fig. 2-1
NOTE
REMOVAL AND INSTALLATION OF
FLAT PACKAGE IC
Some ICs on the PCB are affixed with glue, so be
careful not to break or damage the foil of each IC
leads or solder lands under the IC when removing it.
NOTE
Masking is carried out on all the parts located within
10 mm distance from IC leads.
Blower type IC
desoldering machine
IC
Heat the IC leads using a blower type IC desoldering
machine. (Refer to Fig. 2-2.)
2.
Fig. 2-2
NOTE
Do not rotate or move the IC back and forth , until IC
can move back and forth easily after desoldering the
leads completely.
When IC starts moving back and forth easily after
desoldering completely, pickup the corner of the IC using
tweezers and remove the IC by moving with the IC
desoldering machine. (Refer to Fig. 2-3.)
3.
Blower type IC
desoldering
machine
IC Fig. 2-3
Tweezers
Peel off the Masking Tape.4.
Absorb the solder left on the pattern using the Braided
Shield Wire. (Refer to Fig. 2-4.)
5.
NOTE
Do not move the Braided Shield Wire in the vertical
direction towards the IC pattern.
Braided Shield Wire
Soldering Iron
Fig. 2-4
IC pattern

B2-2
DISASSEMBLY INSTRUCTIONS
Supply soldering
from upper position
to lower position
IC
Supply the solder from the upper position of IC leads
sliding to the lower position of the IC leads.
(Refer to Fig. 2-6.)
2.
Fig. 2-6
Soldering IronSolder
IC
Absorb the solder left on the lead using the Braided
Shield Wire. (Refer to Fig. 2-7.)
3.
Fig. 2-7
Soldering Iron
Braided Shield Wire
NOTE
Do not absorb the solder to excess.
IC
When bridge-soldering between terminals and/or the
soldering amount are not enough, resolder using a Thin-
tip Soldering Iron. (Refer to Fig. 2-8.)
4.
Fig. 2-8
Thin-tip Soldering Iron
NOTE
When the IC leads are bent during soldering and/or
repairing, do not repair the bending of leads. If the
bending of leads are repaired, the pattern may be
damaged. So, always be sure to replace the IC in this
case.
Finally, confirm the soldering status on four sides of the
IC using a magnifying glass.
Confirm that no abnormality is found on the soldering
position and installation position of the parts around the
IC. If some abnormality is found, correct by resoldering.
5.
Solder temporarily
Soldering Iron
INSTALLATION
Take care of the polarity of new IC and then install the
new IC fitting on the printed circuit pattern. Then solder
each lead on the diagonal positions of IC temporarily.
(Refer to Fig. 2-5.)
1.
Fig. 2-5
Solder temporarily

C-1
SERVICE MODE LIST
This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit and on the remote
control for more than the standard time in the appropriate condition. (See below chart.)
Releasing of V-CHIP PASSWORD.
Initialization of factory TV data.
NOTE: If you set factory initialization, the memories are reset
such as the channel setting, and the POWER ON total
hours.
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
Set Key Operations
VOL. DOWN
(Minimum)
Remocon
Key
0 2 sec.
VOL. DOWN
(Minimum) 1 2 sec.
Standard
Time
VOL. DOWN
(Minimum) 6 2 sec.
VOL. DOWN
(Minimum) 9 2 sec.
Set
Condition
TV mode
TV mode
ALL mode
TV mode
Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display
Adjustment).
VOL. DOWN
(Minimum) 8
ALL mode Check of the SUM DATA, POWER ON total hours, MICON
VERSION and DIGITAL TV MICON FIRMWARE on the screen.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
2 sec.

C-2
CONFIRMATION OF CHECK SUM, POWER ON TOTAL HOURS AND MICON VERSION
Initial total of MEMORY IC, POWER ON total hours and MICON VERSION can be checked on the screen. Total hours are
displayed in 16 system of notation.
NOTE:
1.
2.
3.
4.
INIT : E7C9
ROM : 0000
ADC : 76E1
DVP1 : 3587 *1
DVP2 : 3601
LCD ON 0000
OEC7171A_033
FIG. 1
Initial setting data check sum.
POWER ON total hours.
= (16 x 16 x 16 x thousands digit value)
+ (16 x 16 x hundreds digit value)
+ (16 x tens digit value)
+ (ones digit value)
MICON Version
Turn on the POWER, and set to the TV mode.
Set the VOLUME to minimum.
Press both VOL. DOWN button on the set and Channel
button (8) on the remote control for more than 2 seconds.
After the confirmation of each check sum, POWER ON
total hours and MICON VERSION , turn off the power.
Rom correction data check sum.
AD CONVERTER data check sum.
WHEN REPLACING EEPROM (MEMORY) IC
If you set a factory initialization, the total hours is reset to "0".
Please refer to "CONFIRMATION OF INITIAL DATA" when SUM DATA is not corresponding.
SCALER data check sum.
4.
5.
6.
7.
8.
9.
10.
11.
12.
The unit will now have the correct DATA for the new MEMORY IC.
ADDRESS is now selected and should "blink". Using the UP/DOWN buton on the remote, step through the ADDRESS
until required ADDRESS to be changed is reached.
Press RIGHT/LEFT button to select DATA. When DATA is selected, it will "blink".
Again, step through the DATA using UP/DOWN button until required DATA value has been selected.
Pressing RIGHT/LEFT button will take you back to ADDRESS for further selection if necessary.
Repeat steps 4 to 6 until all data has been checked.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
After the data input, set to the initializing of shipping.
Turn POWER on.
Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 2 seconds.
After the finishing of the initializing of shipping, the unit will turn off automatically.
ADDRESS DATA
INIT 0001 94
LCD ON 0000
OEC7171A_033
FIG. 2
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to
ensure correct data settings while making reference to INITIAL SETTING TABLE (Attached "INITIAL DATA").
1.
2.
3.
Turn on the POWER, and set to the TV mode.
Set the VOLUME to minimum.
Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 2 seconds.
ADDRESS and DATA should appear as FIG 2.
CONFIRMATION OF INITIAL DATA
*1 DVP1 is different according to each set.

ELECTRICAL ADJUSTMENTS
D-1
1. ADJUSTMENT PROCEDURE
Read and perform these adjustments when repairing the
circuits or replacing electrical parts or PCB assemblies.
On-Screen Display Adjustment
1.
2. Set the VOLUME to minimum. Press the VOL. DOWN button on the set and the
channel button (9) on the remote control for more than
2 seconds to display adjustment mode on the screen as
shown in Fig. 1-1.
3.
4.
5.
Use the Channel UP/DOWN button or Channel button
(0-9) on the remote control to select the options shown
in Fig. 1-2.
Press the INPUT button on the remote control to end
the adjustments.
To display the adjustment screen for TV, AV, AV(S),
YUV and HDMI mode, press the INPUT button on the
remote control to set to the TV, AV, AV(S) YUV and
HDMI mode. Press the VOL.DOWN button on the set
and the channel (9) on the remote control for more than
2 seconds.
FUNCTION
H POSI OSD
V POSI OSD
R DRIVE(N)
R CUT OFF(N)
G DRIVE(N)
G CUT OFF(N)
B DRIVE(N)
B CUT OFF(N)
R DRIVE(C)
R CUT OFF(C)
G DRIVE(C)
G CUT OFF(C)
B DRIVE(C)
B CUT OFF(C)
R DRIVE(W)
R CUT OFF(W)
G DRIVE(W)
G CUT OFF(W)
B DRIVE(W)
B CUT OFF(W)
H POSI 50Hz
NO.
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
FUNCTION
H POSI 60Hz
V POSI 50Hz
V POSI 60Hz
BAK LIGHT CENT
BAK LIGHT MAX
BAK LIGHT MIN
BRIGHT CENT
BRIGHT MAX
BRIGHT MIN
TINT
CONTRAST CENTER
CONTRAST MAX
CONTRAST MIN
COLOR CENT
COLOR MAX
COLOR MIN
CONTRAST 40
BRIGHT (3F54)
CONTRAST(3F55)
SRC TOP
DFEA VIMGVT Fig. 1-2
Function Step No.
Fig. 1-1
01 H POSI OSD 346
TV
NO.
22
23
24
25
26
27
28
29
30
31
35
36
37
38
39
40
43
44
45
46
47
CAUTION
ï
ï
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Use an isolation transformer when performing any
service on this chassis.
When removing a PCB or related component, after
unfastening or changing a wire, be sure to put the wire
back in its original position.
When you exchange IC and Transistor with a heat sink,
apply silicon grease (YG6260M) on the contact section
of the heat sink. Before applying new silicon grease,
remove all the old silicon grease. (Old grease may cause
damages to the IC and Transistor).
Prepare the following measurement tools for electrical
adjustments.
1. Pattern Generator 2. BASIC ADJUSTMENTS
2-1: CONTRAST MAX
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
Receive the monoscope pattern. (RF Input)
Using the remote control, set the brightness and contrast to
normal position.
Activate the adjustment mode display of Fig. 1-1 and press
the channel button (36) on the remote control to select
"CONTRAST MAX".
Press the LEFT/RIGTH button on the remote control until
the contrast step No. becomes "219"
Check if the picture is normal.
Receive the monoscope pattern. (VIDEO Input)
Press the INPUT button on the remote control to set to the
AV mode.
Using the remote control, set the brightness and contrast to
normal position.
Activate the adjustment mode display of Fig. 2-1 and press
the channel button (36) on the remote control to select
"CONTRAST MAX".
Press the LEFT/RIGTH button on the remote control until
the contrast step No. becomes "217".
Check if the picture is normal.
Playback the DVD(480i) disc. (COMPONENT Input)
Press the INPUT button on the remote control to set to the
YUV mode.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of Fig. 2-1 and
press the channel button (36) on the remote control to
select "CONTRAST MAX".
Press the LEFT/RIGTH button on the remote control until
the contrast step No. becomes "199".
Playback the DVD(480i) disc. (HDMI Input)
Press the INPUT button on the remote control to set to the
HDMI mode.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (36) on the remote control to
select "CONTRAST MAX".
Press the LEFT/RIGTH button on the remote control until
the contrast step No. becomes "168".
Check if the picture is normal.

ELECTRICAL ADJUSTMENTS
D-2
2-2: WHITE BALANCE
1.
2.
3.
4.
5.
6.
7.
Place the set in Aging Test for more than 15 minutes.
Receive the gray scale pattern from the Pattern
Generator.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (03) on the remote control to
select "R DRIVE(N)".
Press the CH. UP/DOWN button on the remote control to
select the "R CUT OFF(N)", "B DRIVE(N)", "B CUT
OFF(N)", "R DRIVE(C)", "R CUT OFF(C)", "B DRIVE(C)",
"B CUT OFF(C)", "R DRIVE(W)", "R CUT OFF(W)", "B
DRIVE(W)" or "B CUT OFF(W)".
Adjust the LEFT/RIGTH button on the remote control to
whiten the R CUT OFF(N), B DRIVE(N), B CUT OFF(N),
R DRIVE(C), R CUT OFF(C)", B DRIVE(C), B CUT
OFF(C), R DRIVE(W), R CUT OFF(W), B DRIVE(W) or B
CUT OFF(W) at each step tone sections equally.
Perform the above adjustments 5 and 6 until the white
achieved.

2-3: Confirmation of Fixed Value (Step No.)
Please check if the fixed values of each adjustment item is set correctly referring below. (TV/AV/AV(S)/YUV/HD-MI)
480i 480p 720p 1080i 576i 576p 720p 1080i 480i 480p 720p 1080i 576i 576p 720p 1080i
NO. FUNCTION
1 H POSI OSD 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346
2 V POSI OSD 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85
3 R DRIVE (N) 135 135 135 134 134 134 133 133 133 135 132 132 132 135 132 132 132 132 132 132 132 132 132 132 132
4 R CUT OFF (N) 127 127 127 127 127 127 130 130 130 126 129 130 130 126 129 130 130 130 130 130 130 130 130 130 130
5 G DRIVE (N) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
6 G CUT OFF (N) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
7 B DRIVE (N) 108 108 108 106 106 106 105 105 105 106 107 106 107 106 107 106 107 105 105 105 105 105 105 105 105
8 B CUT OFF (N) 129 129 129 127 127 127 130 130 130 127 127 128 127 127 127 128 127 128 128 128 128 128 128 128 128
9 R DRIVE (C) 131 131 131 130 130 130 130 130 130 130 129 129 129 130 129 129 129 130 130 130 130 130 130 130 130
10 R CUT OFF (C) 127 127 127 126 126 126 129 129 129 125 129 129 130 125 129 129 130 129 129 129 129 129 129 129 129
11 G DRIVE (C) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
12 G CUT OFF (C) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
13 B DRIVE (C) 137 137 137 129 129 129 129 129 129 127 132 130 132 127 132 130 132 132 132 132 132 132 132 132 132
14 B CUT OFF (C) 129 129 129 127 127 127 130 130 130 128 125 125 125 128 125 125 125 125 125 125 125 125 125 125 125
15 R DRIVE (W) 153 153 153 152 152 152 152 152 152 153 152 153 153 153 152 153 153 153 153 153 153 153 153 153 153
16 R CUT OFF (W) 129 129 129 129 129 129 131 151 131 128 129 129 129 128 129 129 129 129 129 129 129 129 129 129 129
17 G DRIVE (W) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
18 G CUT OFF (W) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
19 B DRIVE (W) 81 81 81 81 81 81 81 81 81 82 81 82 82 82 81 82 82 81 81 81 81 81 81 81 81
20 B CUT OFF (W) 129 129 129 128 128 128 130 130 130 127 128 128 128 127 128 128 128 129 129 129 129 129 129 129 129
21 H POSI 50Hz 316 316 316 316 316 316 316 316 316 --- --- --- --- 314 148 328 278 --- --- --- --- 298 148 290 238
22 H POSI 60Hz 280 280 280 280 280 280 282 282 282 278 138 328 278 --- --- --- --- 268 136 290 238 --- --- --- ---
23 V POSI 50Hz 24 24 24 24 24 24 24 24 24 --- --- --- --- 24 24 35 18 --- --- --- --- 24 24 35 18
24 V POSI 60Hz 23 23 23 23 23 23 23 23 23 24 24 33 19 --- --- --- --- 24 24 34 19 --- --- --- ---
25 BAK LIGHT CENT 128 123 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
26 BAK LIGHT MAX 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255
27 BAK LIGHT MIN 0000000000000000000000000
28 BRIGHT CENT 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126
29 BRIGHT MAX 156 156 156 156 156 156 156 156 156 156 156 156 156 156 156 156 156 156 156 156 156 156 156 56 156
30 BRIGHT MIN 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70
31 TINT 116 116 116 116 116 116 128 128 128 118 118 118 120 118 118 118 120 122 122 130 130 122 122 130 130
35 CONTRAST CENT 154 154 154 159 159 159 145 145 145 145 106 105 107 145 106 105 107 122 122 122 122 122 122 122 122
36 CONTRAST MAX 219 219 219 217 217 217 200 200 200 199 146 144 146 199 146 144 146 168 168 168 168 168 168 168 168
37 CONTRAST MIN 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50
38 COLOR CENT 111 111 111 86 86 86 91 91 91 120 110 110 125 120 110 110 125 62 62 62 62 62 62 62 62
39 COLOR MAX 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127
40 COLOR MIN 0000000000000000000000000
43 CONTRAST 40 207 207 207 209 209 209 193 193 193 191 141 139 141 191 141 139 141 161 161 161 161 161 161 161 161
44 BRIGHT (3F54) 120 120 120 122 122 122 122 122 122 120 125 128 128 120 125 128 128 113 113 113 113 113 113 113 113
45 CONTRAST (3F55) 220 220 220 220 220 220 220 220 220 220 180 180 180 220 180 180 180 113 113 113 113 113 113 113 113
46 SRC TOP 21 21 27 42 42 42 21 21 27 42 103 --- --- 42 --- --- --- --- --- --- --- --- --- --- ---
47 DFEA VIM GVT ---------003200124320491023202769320
AV(S)
PAL-M
Step No.
NTSC PAL-N PAL-M PAL-N 60Hz 50Hz 50Hz PAL-N 60Hz
ELECTRICAL ADJUSTMENTS
TV AV YUV HD-MI
PAL-M NTSC NTSC
D-3 D-4

ELECTRICAL ADJUSTMENTS
3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)
CP2201 OS2200
CP2203
CP802
CP3201CP2200
CP3603
CP3601
CP3602
CP803
CP7203
J4301
CD4204
CD4203
LCD PANEL
REMOCON PCB
AV PCB SCALER PCB
OPERATION PCB
CD517
CD520
CP507
REGULATOR PCB
POWER PCB
CP511
CP514
CD518
CD519
AC IN
J502
CP506
CP508
CP3804
CP3802
CP3803
CP3801
CP901
J4211
J4204
CP4203
CP4204
CP3807
TU5800
J4205
J4201
CP4202
CP301
CP303
SPEAKER
SPEAKER
CD505
CD2203
CD3807 CD4202
CD3804
CD3805
CD901
D-5

TROUBLESHOOTING GUIDE
E-1
POWER DOES NOT TURN ON
NO
IS F501 BROKEN ? YES CHANGE F501.
NO
YES
CHECK IC503 AND
PERIPHERAL CIRCUIT.
NO CHECK IC3804 AND
PERIPHERAL CIRCUIT.
OR CHANGE AV PCB.
NO
YES
CHECK IC506 AND
PERIPHERAL CIRCUIT.
OR CHANGE REGULATOR PCB.
YES
CHANGE SCALER PCB.
IS THERE VOLTAGE
AT PIN 2 OF IC3804
AT3.3V ?
IS THERE VOLTAGE
AT PIN 4 OF IC506
AT5V ?
IS THERE VOLTAGE
AT PIN 4 OF IC503
18.3V ?

TROUBLESHOOTING GUIDE
E-2
THE PICTURE DOES NOT
APPEAR (1).
NO
YES
CONNECT CD7203.
NO
YES
IS CD7203 CONNECTED ?
DOSE BACK LIGHT SHINE ?
YES
NO
CHANGE V2301.
IS THERE SIGNAL
AT IC7201 ? CHANGE IC7201.
IS THERE SIGNAL
AT CP7203 ?
NO
YES
CHECK IC801.
OR CHANGE SCALER PCB.
CHECK IC502, T502 AND
PERIPHERAL CIRCUIT.
NO
YES
IS THERE VOLTAGE AT
PINS 1, 2, 3, 4 AND 5
OF CP506 24V ?