SHARP LC37SH12U Service Manual
SERVICE MANUAL
LCD COLOR TELEVISION
MODEL
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
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 ....................................................................
•
RE-WRITE FOR DIGITAL SOFT FIRMWARE .....................................................................
•
ELECTRICAL ADJUSTMENTS ............................................................................................
•
TROUBLESHOOTING GUIDE .............................................................................................
•
BLOCK DIAGRAM ................................................................................................................
•
PRINTED CIRCUIT BOARDS ..............................................................................................
•
SCHEMATIC DIAGRAMS ....................................................................................................
•
WAVEFORMS ......................................................................................................................
•
MECHANICAL EXPLODED VIEWS .....................................................................................
•
REPLACEMENT PARTS LIST .............................................................................................
•
LC-37SH12U
Page
A1-1
A1-1
A1-1
A1-2
A2-1~A2-5
B1-1~B2-2
C-1
C-2
C-3
D-1~D-5
E-1~E-5
F-1~F-8
G-1~G-12
H-1~H-48
I-1
J-1~J-3
K1-1~K2-9
SHARP CORPORATION
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
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.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
3. USE THE DESIGNATED PARTS
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.
4. BE CAREFUL WITH THE
LCD PANEL
Avoid a shock to the panel while servicing.
Take enough care to deal with it.
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
6.
SERVICING
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.
Unplug the plug from the AC outlet.
2.
Remove the antenna terminal on TV and turn
on the TV.
3.
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].
4.
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
HOW TO ORDER PARTS
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.
IMPORTANT
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).
A1-1
ABOUT LEAD FREE SOLDER (PbF)
Distinction of PbF PCB:
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.
Recommendations
Recommended lead free solder composition is Sn-3.0Ag-0.5Cu.
A1-2
GENERAL SPECIFICATIONS
0oC
0oC
0oC
60oC
G-1 TV LCD LCD Size / Visual Size 37.02 inch / 940.3mmV
G-2 Tuning Broadcasting System Analog US System M
G-3 Signal Video Signal Input Level 1 V p-p/75 ohm
G-4 Power Power Source AC 120V, 60Hz
G-5 Regulation Safety UL(UL6500_2nd)/CSA(E60065_00)
G-6 Temperature Operation
G-7 Operating Humidity Less than 80% RH
G-8 Clock and Clock Yes
System LCD Type Color TFT LCD
Color System NTSC
Speaker 2 Speaker
Sound Output Max 10W + 10W
System Digital ATSC(8VSB)/QAM
Tuner and System 1Tuner
Receive CH Destination US (W/CABLE)
Intermediate Digital 44.00MHz
Frequency Analog Picture(FP) 45.75MHz
Preset CH No
Stereo/Dual TV Sound US-Stereo
Tuner Sound Muting Yes
RGB Signal Output Level -Audio Signal Input Level 0.85 V p-p/50k ohm
Power Consumption at AC 180W at 120V 60Hz
Protector Power Fuse Yes
Timer Sleep Timer Max Time 120 Min
On Timer Program Yes
Off Timer Program No
Game Timer No
Wake Up Timer No
Timer Back-up (at Power Off Mode) more than -- Min Sec
Number of Pixels 1366(H) x 768(V)
View Range Left/Right 88/88 degree
Position Front
Size 1.6 x 4.8 inch
Impedance 4 ohm
10%(Typical) ---
CH Coverage 2~69, 4A, A-5~A-1, A~I, J~W, W+1~W+84
Sound(FS) 41.25MHz
FP-FS 4.50MHz
Output Level -S/N Ratio (Weighted) -Horizontal Resolution at DVD Mode --
Output Level at DVD --
Digital Output Level 0.5 V p-p/75 ohm
S/N Ratio at DVD (Weighted) -Harmonic Distortion -Frequency Response : at DVD --
DC --
Stand by (at AC) 1W at 120V 60Hz
Energy Star Yes
Per Year -- kWh/Year
Safety Circuit Yes
IC Protector(Micro Fuse) Yes
Radiation FCC / IC
Laser --
Storage
Step 10 Min
Up/Down 88/88 degree
--
at TV 0.85 V p-p/1k ohm
at Video CD --
at SVCD --
at CD --
at DC --
0-1.70 V p-p/1k ohm (Variable out mode)
~ +4
-2
~ +
A2-1
GENERAL SPECIFICATIONS
G-9 Remote Unit RC-MQ
G-10 Features Auto Shut Off Yes
Control Glow in Dark Remocon No
Remocon Format SHARP
Format SHARP
Custom Code 10000 / 10001
Power Source Voltage(D.C) 3V
Total Keys 40 Keys
Keys
Auto Search No
Power On Memory Yes
Comb Filter Yes
Game Position No
Auto Setup(Language/CH Program) No
Picture Setting(TV) Yes
Picture Setting(PC) Yes
UM size x pcs UM-3 x 2 pcs
POWER
FUNCTION
Source POWER
DISPLAY
LIGHT
SEARCH+
SEARCHPLAY
REC
STOP
PAUSE
SKIP+
SKIPVIEW MODE
1
2
3
4
5
6
7
8
9
0
.
ENT
INPUT
FLASH BACK
VOL+
VOLCH+
CHSURROUND
MUTE
FREEZE
MENU
LEFT
ENTER
RIGHT
UP
DOWN
EXIT
RETURN
FAVORITE A
FAVORITE B
FAVORITE C
FAVORITE D
FAVORITE
SLEEP
AUDIO
AV MODE
CC
AV Mode(Picture Preference) Yes
Brightness , Contrast , Color Yes
Tint Yes
Sharpness Yes
Color Temperature Yes
Cable Clear No
Backlight Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
3 -D
No
No
No
No
No
No
No
No
No
No
No
No
A2-2
GENERAL SPECIFICATIONS
Brightness , Contrast Yes
HOR Position , VER Position Yes
Phase, Clock Yes
Red, Green, Blue Yes
Auto Adjust No
Audio MTS Yes
Tuning CH Program Yes
Label CH Label Yes
Favorite CH Yes
V-Chip Yes
RRT Setup
Lock Hotel Lock No
OSD Language
Closed Caption
CC Advanced
View Mode (Picture Size) Yes
Picture Scroll Yes
Cinema Mode Yes
Aspect Yes
PFC(Power Factor circuit)
Freeze frame Yes
PIP/POP No
Direct Input Selection Yes
Digital Out Dolby Digital Yes
PC Monitor Input Yes
HDMI Input Yes
Component Input Yes
Backlight Yes
Tone Control (Bass/Treble/Balance) Yes
Stable Sound No
Surround Yes
BBE No
SRS WOW (SRS 3D/Focus/Tru Bass) No
Variable Audio Out Yes
Air/Cable Yes
ADD/DELETE Yes
Video Label Yes
Type
Channel Lock No
Video Lock No
Panel Lock No
MPEG No
PCM Yes
DTS No
VGA (640x480) Yes (60Hz)
VGA (720x400) Yes (70Hz)
WVGA (848x480) Yes (60Hz)
SVGA (800x600) Yes (60Hz)
XGA (1024x768) Yes (60Hz)
WXGA (1280x768) Yes (60Hz)
WXGA (1280x720) Yes (60Hz)
WXGA (1360x768) Yes (60Hz)
SXGA (1280x1024) No
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) No
720x576i (16:9) No
720x576p (4:3) No
720x576p (16:9) No
1280x720p Yes (60Hz)
1920x1080i 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) No
720x576i (16:9) No
720x576p (4:3) No
720x576p (16:9) No
1280x720p Yes (60Hz)
1920x1080i Yes (60Hz)
USA/CANADA Type
Yes
English French Spanish
Yes
Yes
No
A2-3
GENERAL SPECIFICATIONS
G-11 Accessories Owner's Manual Language English/French/Spanish
Remote Control Unit Yes
Rod Antenna
Loop Antenna
U/V Mixer
DC Car Cord (Center+)
Guarantee Card
Warning Sheet
Circuit Diagram
Antenna Change Plug
Service Facility List
Important Safeguard
Dew/AHC Caution Sheet
Quick Set-up Sheet
Battery Yes
AC Adapter
AC Cord (for AC Adapter)
AC Cord (Flat Polarity Plugs) Yes
Cable Cramp Yes
Stand Yes
Stand Screw Yes
Hexagon Wrench Yes
AV Cord (2Pin-1Pin)
Registration Card (NDL Card) Yes
300 to 75ohm Antenna Adapter
Cleaning Cloth Yes
Sheet Information (Return)
Sheet Information (HDMI) No
w/Guarantee Card Yes
No
Poles -Terminal --
No
Terminal --
No
No
No
No
No
No
No
No
No
No
UM size x pcs UM-3 x 2 pcs
OEM Brand No
No
No
No
No
No
A2-4
GENERAL SPECIFICATIONS
G-12 Interface Switch Top Power (Tact) Yes
Rear Main Power SW No
Indicator Power/Stand-By Yes (Green / Red)
Terminals Side Video Input 1 RCA x 1
Rear AC Inlet
G-13 Set Size Approx. W x D x H (mm) 918.5 x 293 x 648
G-14 Weight Net (Approx.) 24.0kg (52.9 lbs)
G-15 Carton Master Carton No
Gift Box Material Double/Brown
Drop Test 1 Corner / 3 Edges / 5 Surfaces
Container Stuffing (40' container) 276
w/Pallet No
w/Wrapping No
G-16 Material Cabinet Front PC+ABS 94V0 NON-HALOGEN
PCB Non-Halogen Demand No
G-17 Environment Environmental standard requirement Green procurement of SHARP
Pb-free Phase3(Phase3A)
Rohs 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
On Timer No
Audio Input 1 RCA x 2(L/MONO, R)
S - Input 1
Video Input 2 RCA x 1
Audio Input 2 RCA x 2(L/MONO, R)
S - Input 2
Video Output No
Audio Output
Component Input 1
Analog Audio RCA x 2(L/MONO, R)
Component Input 2 No
Analog Audio No
HDMI Input 1
Analog Audio Mini Jack
HDMI Input 2
Analog Audio No
Sub Woofer Out No
PC Monitor Input
Analog Audio HDMI 1 Audio Input Alternative
Digital Audio Output Coaxial
DC Jack (Center +) No
VHF/UHF Antenna Input
Video Input 3 No
Audio Input 3 No
S - Input 3 No
Other Terminal No
w/o Stand Approx. W x D x H (mm)
Net w/o Stand (Approx.) 21.5kg (47.4 lbs)
Gross (Approx.) 28.0kg (61.7 lbs)
Content --- Sets
Material --- / --Dimensions W x D x H(mm) --Description of Origin ---
W/Color Photo Label No
W/Handle No
Dimensions W x D x H(mm) 1,032 x 287 x 727
Description of Origin Yes
Height (cm) 25
Rear PS 94V0 NON-DECABROM
Jack Panel --
Eyelet Demand Yes
Measures for Whisker Yes
Yes
Yes
RCA x 2 (Variable) (L, R)
RCA x 3
HDMI x 1
HDMI x 1
Yes
F Type
Yes
918.5 x 115 x601.5
Sets/40' container
A2-5
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1.
Remove the 15 screws 1.
2.
Remove the 7 screws 2.
3.
Remove the Back Cabinet in the direction of arrow.
1
2
22
2
1
1
2
2
1
1
1
1
1
1
1
2
Back Cabinet
1
1
1
1
1
Fig. 1-1
1-3: REMOCON PCB (Refer to Fig. 1-3)
1.
Disconnect the following connector:
(CP2201).
2.
Remove the 2 screws 1.
3.
Remove the Remocon PCB in the direction of arrow.
1
1
Remocon PCB
1-4: LCD BLOCK (Refer to Fig. 1-4)
1.
Remove the Holder Panel.
2.
Remove the 5 screws 1.
3.
Remove the LCD Block in the direction of arrow (A).
Holder Panel
1
1
1
1
1
LCD Block
Fig. 1-3
1-2: OPERATION PCB (Refer to Fig. 1-2)
1.
Disconnect the following connector:
(CP2203).
2.
Remove the Plate Button in the direction of arrow (A).
3.
Remove the 3 screws 1.
4.
Remove the Operation PCB in the direction of arrow (B).
5.
Remove the 5 screws 2.
6.
Remove the 2 screws 3.
7.
Remove the Angle Hinge in the direction of arrow (C).
Operation PCB
(B)
Plate Button
(A)
1
1
1
3
3
2
22
2
(C)
2
Fig. 1-2
Front Cabinet
(A)
Holder Panel
Fig. 1-4
B1-1
DISASSEMBLY INSTRUCTIONS
1-5: DIGITAL PCB (Refer to Fig. 1-5)
1.
Disconnect the following connectors:
(CP4305, CP6501, CP6503, CP6504, CP7200).
2.
Remove the 3 screws 1.
3.
Remove the screw 2.
4.
Remove the 6 screws 3.
5.
Remove the Plate Jack in the direction of arrow (A).
6.
Remove the 9 screws 4.
7.
Remove the Digital PCB and Shield Digital in the
direction of arrow (B).
2
1
Plate Jack
3
3
(A)
LCD Block
4
4
4
4
4
4
(B)
4
4
Shield Digital
Digital PCB
4
Fig. 1-5
1-7: ANGLE MAIN (Refer to Fig. 1-7)
1.2.Remove the 2 screws 1.
Remove the Angle Main.
Angle Main
1
1
Angle Main
LCD Block
1-8: POWER PCB (Refer to Fig. 1-8)
1.
Disconnect the following connector:
(CP406).
2.
Remove the 8 screws 1.
3.
Remove the 2 screws 2.
4.
Remove the Angle PCB-1 and Holder PCB.
5.
Remove the Power PCB and Angle PCB-3 in the
direction of arrow.
Fig. 1-7
1-6: AV PCB (Refer to Fig. 1-6)
1.
Disconnect the following connectors:
(CP3801, CP3802, CP301).
2.
Remove the 5 screws 1.
3.
Remove the AV PCB in the direction of arrow.
1
1
1
1
1
AV PCB
LCD Block
Fig. 1-6
LCD Block
1
Holder PCB
1
1
1
1
1
2
Angle PCB-3
Power PCB
1
1
2
Angle PCB-1
Fig. 1-8
B1-2
DISASSEMBLY INSTRUCTIONS
1-9: ANGLE LCD TOP/ANGLE LCD BOTTOM /
ANGLE PCB-2 (Refer to Fig. 1-9)
1.
Remove the 3 screws 1.
2.
Remove the Angle PCB-2 and Holder Wire in the
direction of arrow (A).
3.
Remove the 4 screws 2.
4.
Remove the Angle LCD Bottom and Holder Wire in the
direction of arrow (B).
5.
Remove the 4 screws 3.
6.
Remove the Angle LCD Top and Holder Cord in the
direction of arrow (C).
Angle PCB-2
Holder Wire
2
2
Angle LCD Bottom
Holder Cord
1
(A)
(B)
2
Holder Wire
2
1
1
Holder Wire
Holder Cord
3
3
3
3
(C)
Angle LCD Top
Fig. 1-9
B1-3
DISASSEMBLY INSTRUCTIONS
2.
REMOVAL AND INSTALLATION OF
FLAT PACKAGE IC
REMOVAL
Put Masking Tape (cotton tape) around the Flat Package
1.
IC to protect other parts from any damage.
(Refer to Fig. 2-1.)
NOTE
Masking is carried out on all the parts located within
10 mm distance from IC leads.
When IC starts moving back and forth easily after
3.
desoldering completely, pickup the corner of the IC
using a tweezers and remove the IC by moving with the
IC desoldering machine. (Refer to Fig. 2-3.)
NOTE
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.
Blower type IC
desoldering
machine
Masking Tape
(Cotton Tape)
Heat the IC leads using a blower type IC desoldering
2.
IC
machine. (Refer to Fig. 2-2.)
NOTE
Do not rotate or move the IC back and forth unit IC
can move back and forth easily after desoldering the
leads completely.
Blower type IC
desoldering machine
Fig. 2-1
Tweezers
IC
Peel off the Masking Tape.4.
Absorb the solder left on the pattern using the Braided
5.
Shield Wire. (Refer to Fig. 2-4.)
NOTE
Do not move the Braided Shield Wire in the vertical
direction towards the IC pattern.
Fig. 2-3
Braided Shield Wire
Soldering Iron
IC
IC pattern
Fig. 2-4
Fig. 2-2
B2-1
DISASSEMBLY INSTRUCTIONS
INSTALLATION
Take care of the polarity of new IC and then install the
1.
new IC fitting on the printed circuit pattern. Then solder
each lead on the diagonal positions of IC temporarily.
(Refer to Fig. 2-5.)
Soldering Iron
Solder temporarily
Supply the solder from the upper position of IC leads
2.
Solder temporarily
sliding to the lower position of the IC leads.
(Refer to Fig. 2-6.)
Fig. 2-5
When bridge-soldering between terminals and/or the
4.
soldering amount are not enough, resolder using a Thintip Soldering Iron. (Refer to Fig. 2-8.)
Thin-tip Soldering Iron
IC
Fig. 2-8
Finally, confirm the soldering status on four sides of the
5.
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.
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, be always sure to replace the IC in this
case.
Soldering IronSolder
IC
Absorb the solder left on the lead using the Braided
3.
Supply soldering
from upper position
to lower position
Shield Wire. (Refer to Fig. 2-7.)
NOTE
Do not absorb the solder to excess.
Soldering Iron
IC
Braided Shield Wire
Fig. 2-6
Fig. 2-7
B2-2
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 a the standard time in the appropriate condition. (See below chart.)
Set
Condition
POWER ON
POWER ON
POWER ON
POWER ON
POWER ON
Set Key Operations
VOL. DOWN
(Minimum)
VOL. DOWN
(Minimum)
VOL. DOWN
(Minimum)
VOL. DOWN
(Minimum)
VOL. DOWN
(Minimum)
Remocon
Key
0 2 sec.
1 2 sec.
6 2 sec.
8
9 2 sec.
Standard
Time
2 sec.
Releasing of V-CHIP PASSWORD.
Initialization of factory TV data.
NOTE:
POWER ON total hours are displayed on the screen.
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
Check of the SUM DATA and MICON VERSION on the screen.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT"
(On-Screen Display Adjustment).
If you set factory initialization, the memories are reset
such as the channel setting, and the POWER ON total
hours.
C-1
WHEN REPLACING EEPROM (MEMORY) IC
CONFIRMATION OF CHECK SUM, POWER ON TOTAL HOURS AND MICON VERSION
Initial total of MEMORY IC, POWER ON total hours and MICON VERSIONcan be checked on the screen. Total hours are
displayed in 16 system of notation.
NOTE:
1.
2.
3.
4.
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.
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, turn off the
power.
NOTE:
The each item value might be different according to each set.
INIT : 7A01
DVP : C8C6
LCD ON : 0000
MAIN MICON Version
SUB MICON Version
Digital TV MICON Fimware
ANALOG M : DA05773081
ANALOG S : DA0276Z201
DIGITAL : CA02B73093
Initial setting data check sum.
SCALER 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)
FIG. 1
CONFIRMATION OF INITIAL DATA
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").
Turn on the POWER, and set to the TV mode.
1.
Set the VOLUME to minimum.
2.
Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 2 seconds.
3.
ADDRESS and DATA should appear as FIG 2.
ADDRESS DATA
INIT 0001 93
LCD ON: 0000
ANALOG M: DA05773081
ANALOG S: DA0276Z201
DIGITAL: CA02B73093
FIG. 2
4.
ADDRESS is now selected and should "blink". Using the UP/DOWN buton on the remote, step through the ADDRESS
until
5.
Press LEFT/RIGHT button to select DATA. When DATA is selected, it will "blink".
6.
Again, step through the DATA using UP/DOWN button until required DATA value has been selected.
7.
Pressing LEFT/RIGHT button will take you back to ADDRESS for further selection if necessary.
8.
Repeat steps 4 to 6 until all data has been checked.
9.
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.
10.
Turn POWER on.
11.
Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 2 seconds.
12.
After the finishing of the initializing of shipping, the unit will turn off automatically.
The unit will now have the correct DATA for the new MEMORY IC.
C-2
RE-WRITE FOR DIGITAL SOFT FIRMWARE
JG176
Ref. No. Part No. Parts Name Remarks
1.
2.
2007 USA DTV LCD
ROM DISC
APJG176126JG176
Copy the "update.dat" in CD to USB Flash Memory.
Recommended USB Flash Memory
• SanDisk Cruzer Mini USB Flash Drive 128Mb
• SanDisk Cruzer Mini USB Flash Drive 256Mb
• SanDisk Cruzer Micoro USB Flash Drive 128Mb
• SanDisk Cruzer Micoro USB Flash Drive 256Mb
• TwinMos ModileDisk3 128Mb (USB 2.0)
• TwinMos ModileDisk3 256Mb (USB 2.0)
NOTE:
Confirm that the AC cord is plugged out.
After Format is done with FAT32 File system beforehand, USB Flash Memory is used.
The computer of WINDOWS2000 is used.
2007 USA DTV LCD
ROM DISC
Up-Date of the Firmware
3.
Set the minus driver to the topside of the USB connector cover, remove the USB connector cover.
Insert the USB Flash Memory to USB connector. (Refer to Fig.1)
SET (REAR)
Fig.1
Insert the AC CORD of the set and turn on the power. The Up-Date will start automatically.
4.
During the writing, "PLEASE WAIT" will appear on the screen.
After the Up-Date, the screen will return to normal screen.
5.
Turn off the power.
6.
Unplug the AC CORD, and remove the USB Flash Memory.
7.
USB connector cover
Insert the AC CORD again.
8.
After the data input, set to the initializing of shipping.
Turn on the power.
9.
Press both Channel button (1) on the remote control and the VOLUME DOWN button on the set for more than 2 seconds.
10.
The unit will now have the correct DATA for the new DIGITAL SOFT FIRMWARE.
C-3
ELECTRICAL ADJUSTMENTS
1. ADJUSTMENT PROCEDURE
Read and perform these adjustments when repairing the
circuits or replacing electrical parts or PCB assemblies.
CAUTION
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. Patterm Generator
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.
TV
STRETCH
Function
3.
Use the UP/DOWN button or Channel button (0-9) on
01 H POSI OSD 350
the remote control to select the options shown in
Fig. 1-2.
4.
Press the INPUT button on the remote control to end the
adjustments.
5.
To display the adjustment screen for TV, AV, YUV,
HDMI and PC mode, press the INPUT button on the
remote control. Press the VOL.DOWN button on the set
and the channel (9) on the remote control for more than
2 seconds.
Step No.
Fig. 1-1
FUNCTION
NO.
H POSI OSD
01
V POSI OSD
02
R DRIVE(N)
03
R CUT OFF(N)
04
G DRIVE(N)
05
G CUT OFF(N)
06
B DRIVE(N)
07
B CUT OFF(N)
08
R DRIVE(C)
09
R CUT OFF(C)
10
G DRIVE(C)
11
G CUT OFF(C)
12
B DRIVE(C)
13
B CUT OFF(C)
14
R DRIVE(W)
15
R CUT OFF(W)
16
G DRIVE(W)
17
G CUT OFF(W)
18
B DRIVE(W)
19
B CUT OFF(W)
20
H POSI CENTER
21
H POSI MAX
22
H POSI MINH
23
FUNCTION
NO.
V POSI CENTER
24
V POSI MAX
25
V POSI MIN
26
BAK LIGHT CENT
29
BAK LIGHT MAX
30
BAK LIGHT MIN
31
BRIGHT CENT
32
BRIGHT MAX
33
BRIGHT MIN
34
TINT
35
SHARP V1 MAX
36
SHARP H1 MAX
37
SHARP H2 MAX
38
CONT CENTER
39
CONT MAX
40
CONT MIN
41
COLOR CENT
42
COLOR MAX
43
COLOR MIN
44
CONTRAST 40
47
Y BRIGHT
49
Y/Cb/Cr CONTRAST
50
ADC ADJUST
51
Fig. 1-2
2. BASIC ADJUSTMENTS
2-1: WHITE BALANCE
1.
Place the set in Aging Test for more than 15 minutes.
2.
Receive the gray scale pattern from the Pattern
Generator.
3.
Press the INPUT button on the remote control to set to
the AV mode.
4.
Using the remote control, set the brightness and contrast
to normal position.
5.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (03) on the remote control to
select "R DRIVE(N)".
6.
Press the 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)".
7.
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)
and B CUT OFF(W) at each step tone sections equally.
8.
Perform the above adjustments 6 and 7 until the white
achieved.
D-1
ELECTRICAL ADJUSTMENTS
2-2: CONTRAST MAX
1.
Receive the monoscope pattern. (RF Input)
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (40) on the remote control to
select "CONTRAST MAX".
4.
Press the LEFT/RIGTH button on the remote control
until the contrast step No. becomes "156"
5.
Check if the picture is normal.
6.
Receive the monoscope pattern. (VIDEO Input)
7.
Press the INPUT button on the remote control to set to
the AV mode.
8.
Using the remote control, set the brightness and
contrast to normal position.
9.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (40) on the remote control to
select "CONTRAST MAX".
10.
Press the LEFT/RIGTH button on the remote control
until the contrast step No. becomes "166".
11.
Check if the picture is normal.
12.
Playback the DVD(480i) disc. (COMPONENT Input)
13.
Press the INPUT button on the remote control to set to
the YUV mode.
14.
Using the remote control, set the brightness and
contrast to normal position.
15.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (40) on the remote control to
select "CONTRAST MAX".
16.
Press the LEFT/RIGTH button on the remote control
until the contrast step No. becomes "166".
17.
Playback the DVD(480i) disc. (HDMI Input)
18.
Press the INPUT button on the remote control to set to
the HDMI mode.
19.
Using the remote control, set the brightness and
contrast to normal position.
20.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (40) on the remote control to
select "CONTRAST MAX".
21.
Press the LEFT/RIGTH button on the remote control
until the contrast step No. becomes "147".
22.
Check if the picture is normal.
2-3: BRIGHT CENT
1.
Receive the monoscope pattern. (VIDEO Input)
2.
Press the INPUT button on the remote control to set to
the AV mode.
3.
Set the screen mode to FULL.
4.
Using the remote control, set the brightness and
contrast to normal position.
5.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (32) on the remote control to
select "BRIGHT CENT".
6.
Press the LEFT/RIGTH button on the remote control
until the screen begin to shine.
7.
Receive the monoscope pattern. (RF Input)
8.
Press the INPUT button on the remote control to set to
the TV mode. Then perfrom the the above adjustments
4~6.
9.
Playback the DVD(480i) disc. (COMPONENT Input)
10.
Press the INPUT button on the remote control to set to
the YUV mode. Then perfrom the the above
adjustments 4~6.
11.
Playback the DVD(480i) disc. (HDMI Input)
12.
Press the INPUT button on the remote control to set to
the HDMI mode. Then perfrom the the above
adjustments 4~6.
D-2
j
)
ELECTRICAL ADJUSTMENTS
2-4: Confirmation of Fixed Value (Step No.)
Please check if the fixed values of each of the ad
NO. FUNCTION
1 H POSI OSD 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350
2V POSI OSD 88 88 8888 88 88 8888 88 88 8888 88 88 88 88 88 88 88 88 88 88 88 88 88 88 8888 88 88888888888888 88 8888 88
3 R.DRIVE (N) *138 *138 *138 *138 *138 *138 *138 *138 *138 *138 *138 *138 *137 *137 *137 *137 *140 *140 *140 *140 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139
4 R CUTOFF (N) *127 *127 *127 *127 *126 *126 *126 *126 *126 *126 *126 *126 *127 *127 *127 *127 *127 *127 *127 *127 *127 *127 *125 *125 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126
5 G DRIVE (N) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
6 G CUTOFF (N) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
7 B DRIVE (N) *125 *125 *125 *125 *127 *127 *127 *127 *126 *126 *126 *126 *126 *126 *126 *126 *123 *123 *123 *123 *123 *123 *122 *122 *123 *123 *123 *123 *123 *123 *123 *123 *123 *123 *123 *123 *123 *123 *123 *123
8 B CUTOFF (N) *127 *127 *127 *127 *123 *123 *123 *123 *124 *124 *124 *124 *123 *123 *123 *123 *130 *130 *130 *130 *130 *130 *129 *129 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130
9 R.DRIVE (C) *133 *133 *133 *133 *134 *134 *134 *134 *134 *134 *134 *134 *134 *134 *134 *134 *138 *138 *138 *138 *135 *135 *133 *133 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136
10 R CUTOFF (C) *128 *128 *128 *128 *128 *128 *128 *128 *127 *127 *127 *127 *128 *128 *128 *128 *128 *128 *128 *128 *127 *127 *127 *127 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126
11 G DRIVE (C) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
12 G CUTOFF (C) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
13 B DRIVE (C) *140 *140 *140 *140 *141 *141 *141 *141 *141 *141 *141 *141 *139 *139 *139 *139 *142 *142 *142 *142 *140 *140 *140 *140 *141 *141 *141 *141 *141 *141 *141 *141 *141 *141 *141 *141 *141 *141 *141 *141
14 B CUTOFF (C) *128 *128 *128 *128 *127 *127 *127 *127 *126 *126 *126 *126 *127 *127 *127 *127 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128
15 R.DRIVE (W) *153 *153 *153 *153 *153 *153 *153 *153 *153 *153 *153 *153 *152 *152 *152 *152 *151 *151 *151 *151 *154 *154 *153 *153 *155 *155 *155 *155 *155 *155 *155 *155 *155 *155 *155 *155 *155 *155 *155 *155
16 R CUTOFF (W) *125 *125 *125 *125 *125 *125 *125 *125 *125 *125 *125 *125 *126 *126 *126 *126 *126 *126 *126 *126 *125 *125 *125 *125 *124 *124 *124 *124 *124 *124 *124 *124 *124 *124 *124 *124 *124 *124 *124 *124
17 G DRIVE (W) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
18 G CUTOFF (W) 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
19 B DRIVE (W) *106 *106 *106 *106 *108 *108 *108 *108 *106 *106 *106 *106 *106 *106 *106 *106 *102 *102 *102 *102 *104 *104 *103 *103 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102
20 B CUTOFF (W) *125 *125 *125 *125 *122 *122 *122 *122 *124 *124 *124 *124 *124 *124 *124 *124 *128 *128 *128 *128 *129 *129 *129 *129 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130
21 H POSI CENTER 291 291 291 291 291 291 291 291 289 289 289 289 307 307 307 307 276 276 276 276 540 366 272 272 262 262 262 262 131 132 131 131 434 280 230 230 151 152 151 151
22 H POSI MAX --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --23 H POSI MIN --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --24 V POSI CENTER 20 28 50 20 20 28 50 20 20 28 50 20 20 28 50 20 46 61 105 46 128 41 90 26 22 30 51 22 45 60 103 45 128 41 97 32 42 57 101 42
25 V POSI MAX --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --26 V POSI MIN --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --29 BAK LIGHT CENT 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
30 BAK LIGHT MAX 225 255 225 225 225 225 225 225 225 225 225 225 255 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225
31BAK LIGHT MIN0 0 00 0 0 00 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 000000 0 00 0
32 BRIGHT CENT 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126 126
33 BRIGHT MAX 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160
34 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 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70
35 TINT 129 129 129 129 124 124 124 124 124 124 124 124 126 126 126 126 123 123 123 123 122 122 122 122 121 121 121 121 125 125 125 125 133 133 133 133 121 121 121 121
36 SHARP V1 MAX 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511
37 SHARP H1 MAX 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511
38 SHARP H2 MAX 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511
39 CONT CENTER *109 *109 *109 *109 *116 *116 *116 *116 *115 *115 *115 *115 *115 *115 *115 *115 *91 *91 *91 *91 *92 *92 *94 *94 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102
40 CONT MAX *156 *156 *156 *156 *166 *166 *166 *166 *165 *165 *165 *165 *166 *166 *166 *166 *130 *130 *130 *130 *133 *133 *136 *136 *147 *147 *147 *147 *147 *147 *147 *147 *147 *147 *147 *147 *147 *147 *147 *147
41CONT MIN 50 50 5050 50 50 5050 50 50 5050 50 50 50 50 50 50 50 50 50 50 50 50 50 50 5050 50 50505050505050 50 5050 50
42 COLOR CENT 112 112 112 112 108 108 108 108 108 108 108 108 125 125 125 125 137 137 137 137 140 140 140 140 137 137 137 137 137 137 137 137 135 135 135 135 137 137 137 137
43 COLOR MAX 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210
44COLOR MIN 64 64 6464 64 64 6464 64 64 6464 64 64 64 64 64 64 64 64 64 64 64 64 64 64 6464 64 64646464646464 64 6464 64
47 CONT 40 *147 *147 *147 *147 *154 *154 *154 *154 *154 *154 *154 *154 *154 *154 *154 *154 *122 *122 *122 *122 *124 *124 *126 *126 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136
49 Y BRIGHT *487 *487 *487 *487 *486 *486 *486 *486 *486 *486 *486 *486 *486 *486 *486 *486 *537 *537 *537 *537 *537 *537 *529 *529 *469 *469 *469 *469 *469 *469 *469 *469 *469 *469 *469 *469 *469 *469 *469 *469
50
Y/Cb/Cr CONTRAST
NO.
FUNCTION
1 H POSI OSD 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350
2V POSI OSD 88 88 8888 88 88 8888 88 88 8888 88 88 88 88 88 88 88 88 88 88 88 88
3 R.DRIVE (N) *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 *139 137 137 137 137 137 137 137 137 137 137 137 137
4 R CUTOFF (N) *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 --- --- --- --- --- --- --- --- --- --- --- --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
6 G CUTOFF (N) 128 128 128 128 128 128 128 128 128 128 128 128 --- --- --- --- --- --- --- --- --- --- --- --7 B DRIVE (N) *123 *123 *123 *123 *123 *123 *123 *123 *123 *123 *123 *123 115 115 115 115 115 115 115 115 115 115 115 115
8 B CUTOFF (N) *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 --- --- --9 R.DRIVE (C) *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 --- --- --- --- --- --- --- --- --- --- --- --10 R CUTOFF (C) *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 *126 --- --- --- --- --- --- --- --- --- --- --- --11 G DRIVE (C) 128 128 128 128 128 128 128 128 128 128 128 128 --- --- --- --- --- --- --- --- --- --- --- --12 G CUTOFF (C) 128 128 128 128 128 128 128 128 128 128 128 128 --- --- --- --- --- --- --- --- --- --- --- --13 B DRIVE (C) *141 *141 *141 *141 *141 *141 *141 *141 *141 *141 *141 *141 --- --- --- --- --- --- --- --- --- --- --- --14 B CUTOFF (C) *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 *128 --- --- --- --- --- --- --- --- --- --- --- --15 R.DRIVE (W) *155 *155 *155 *155 *155 *155 *155 *155 *155 *155 *155 *155 --- --- --- --- --- --- --- --- --- --- --- --16 R CUTOFF (W) *124 *124 *124 *124 *124 *124 *124 *124 *124 *124 *124 *124 --- --- --- --- --- --- --- --- --- --- --- --17 G DRIVE (W) 128 128 128 128 128 128 128 128 128 128 128 128 --- --- --- --- --- --- --- --- --- --- --- --18 G CUTOFF (W) 128 128 128 128 128 128 128 128 128 128 128 128 --- --- --- --- --- --- --- --- --- --- --- --19 B DRIVE (W) *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 --- --- --- --- --- --- --- --- --- --- --- --20 B CUTOFF (W) *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 *130 --- --- --- --- --- --- --- --- --- --- --- --21 H POSI CENTER 230 230 230 230 230 230 230 230 230 230 230 230 289 289 211 288 289 223 223 371 371 371 371 371
22 H POSI MAX --- --- --- --- --- --- --- --- --- --- --- --- 314 314 236 313 314 248 248 396 396 396 396 396
23 H POSI MIN --- --- --- --- --- --- --- --- --- --- --- --- 264 264 186 263 264 198 198 346 346 346 346 346
24 V POSI CENTER 32 32 32 32 32 32 32 32 32 32 32 32 35 35 37 37 35 27 27 35 35 35 35 35
25 V POSI MAX --- --- --- --- --- --- --- --- --- --- --- --- 60 60 62 62 60 47 47 60 60 60 60 60
26 V POSI MIN --- --- --- --- --- --- --- --- --- --- --- --- 10 10 12 12 10 7 7 10 10 10 10 10
29 BAK LIGHT CENT 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
30 BAK LIGHT MAX 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225 225
31 BAK LIGHT MIN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
32 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
33 BRIGHT MAX 160 160 160 160 160 160 160 160 160 160 160 160 170 170 170 170 170 170 170 170 170 170 170 170
34 BRIGHT MIN 70 70 70 70 70 70 70 70 70 70 70 70 60 60 60 60 60 60 60 60 60 60 60 60
35 TINT 128 128 128 128 128 128 128 128 128 128 128 128 --- --- --- --- --- --- --- --- --- --- --- --36 SHARP V1 MAX 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511
37 SHARP H1 MAX 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511
38 SHARP H2 MAX 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511 511
39 CONT CENTER *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 *102 95 95 95 95 95 95 95 95 95 95 95 95
40 CONT MAX *147 *147 *147 *147 *147 *147 *147 *147 *147 *147 *147 *147 127 127 127 127 127 127 127 127 127 127 127 127
41CONT MIN 50 50 5050 50 50 5050 50 50 5050 60 60 60 60 60 60 60 60 60 60 60 60
42 COLOR CENT 138 138 138 138 138 138 138 138 138 138 138 138 --- --- --- --- --- --- --- --- --- --- --- --43 COLOR MAX 210 210 210 210 210 210 210 210 210 210 210 210 --- --- --- --- --- --- --- --- --- --- --- --44 COLOR MIN 64 64 64 64 64 64 64 64 64 64 64 64 --- --- --- --- --- --- --- --- --- --- --- --47 CONT 40 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 *136 121 121 121 121 121 121 121 121 121 121 121 121
49 Y BRIGHT *469 *469 *469 *469 *469 *469 *469 *469 *469 *469 *469 *469 512 512 512 512 512 512 512 512 512 512 512 512
50
Y/Cb/Cr CONTRAST
NOTE: For the step no. with * mark, please adjust it according to the situation of the set.
SIDE BAR S.STRETCH ZOOM STRETCH SIDE BAR S.STRETCH ZOOM STRETCH SIDE BAR S.STRETCH ZOOM STRETCH SIDE BAR S.STRETCH ZOOM STRETCH SIDE BAR S.STRETCH ZOOM STRETCH ZOOM STRETCH ZOOM STRETCH SIDE BAR S.STRETCH ZOOM STRETCH SIDE BAR S.STRETCH ZOOM STRETCH ZOOM STRETCH ZOOM STRETCH SIDE BAR S.STRETCH ZOOM STRETCH
190 190 190 190 190 190 190 190 190 190 190 190 190 190 190 190 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
SIDE BAR S.STRETCH ZOOM STRETCH SIDE BAR S.STRETCH ZOOM STRETCH ZOOM STRETCH ZOOM STRETCH SIDE BAR STRETCH SIDE BAR STRETCH STRETCH SIDE BAR STRETCH SIDE BAR STRETCH STRETCH STRETCH STRETCH
128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128
ustment items are set correctly referring below. (TV/AV/YUV/HDMI/DIGITAL TUNER/PC
TV
480i 480p 720p 1080i
CVBS Y/C
DIGITAL TUNER
AV
480i 480p 720p 1080i
VGA(640*480) VGA(720*400) SVGA(800*600) XGA(1024*768)
WVGA(848*480)
YUV
PC
WXGA(1280*720) WXGA(1280*768) WXGA(1360*768)
480i 480p 720p 1080i VGA
HDMI
D-3 D-4
ELECTRICAL ADJUSTMENTS
3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)
LCD PANEL
POWER PCB
CP406
J401
AC IN
CD3805
CD403
CP411
CP412
CD7200
DIGITAL PCB
CP4307
CP7200
CP3400
CP4302
CP6503 CP6504 CP6501
CP3801
CP3802
CP6505
CP301
CD301
AV PCB
CP3601
CP3600
J4300
J4305
TU2800
CP4300
J4202
J4203
J4206
J4207
J4208
J4209
OPERATION PCB
CP2203_1
SPEAKER
CD2201
OS2201
CP2201
REMOCON PCB
CD2202
D-5
(LCD SECTION)
POWER DOES NOT TUNER
ON
TROUBLESHOOTING GUIDE
Is F401 broken?
No
Is there voltage at
pin 1 of IC402 6V?
Yes
Is there voltage
at pin 10 of
IC401 19V?
Yes
Change DIGITAL PCB.
Yes
No
No
Change F401.
Check IC402 and peripheral
circuit.
Check IC401, R412 and
peripheral circuit.
E-1
THE PICTURE APPEARS,
BUT THE AUDIO DOES NOT
APPEARS.
(AT RF MODE)
TROUBLESHOOTING GUIDE
Is CP301 connected?
Yes
Is there signal at
pins 1 and 4 of
No
Is there signal at
pins 2 and 14 of
IC301?
No
Is there signal at
pins 27 and 28 of
IC905?
No
Yes
Yes
Yes
Connect CP301.
Change SP301 and SP302.
Check IC301 and peripheral
circuit.
Check IC905 and peripheral
circuit.
No
Is there signal at pin
15 of TU2800?
No
Change TU2801.
Yes
Check signal of pin 15 of
TU2800 to pin 67 of IC905.
E-2
THE PICTURE DOES NOT
APPEAR (1)
TROUBLESHOOTING GUIDE
Does backlight shine?
Yes
Is CD7200 connected?
Yes
Is there voltage at pin
28,29,30 and 31 of
CP7200 12V?
Yes
Is there signal at pins 7,
8, 10, 11, 13, 14, 16, 17,
19 and 20 of CD7200?
No
No
No
Yes
Is there voltage at pins
1, 2, 3, 4 and 5 of
CP406 24V?
Yes
Connected CD7200.
Check IC407 and
peripheral circuit.
No
Check D436, D437
and peripheral
circuit.
Change V2301(PANEL).
No
Is there signal at IC3901?
Yes
Check DIGITAL PCB.
No
Change IC3901.
E-3