Sharp aquos LC-20S5E-BK 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.........................................................................................................................
HOTEL MODE FUNCTION ..................................................................................................
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 .............................................................................................
Page
A1-1
A1-1
A1-1
A1-2
A1-3
A2-1~A2-5
B1-1~B2-2
C-1
C-2
C-3
D-1~D-4
E-1~E-7
F-1~F-8
G-1~G-8
H-1~H-24
I-1~I-3
J-1~J-3
K1-1~K2-10
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LC-20S5E-BK
SERVICE MANUAL
SHARP CORPORATION

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

HOTEL MODE FUNCTION
The following can be set by the Hotel mode function.
To set the Hotel mode, please follow the steps below.
1.
2.
3.
4.
5.
6.
7.
8.
To release the Hotel mode, please follow the steps below.
1.
2.
3.
4.
5.
6.
7.
8.
In power off mode, press and hold the ‘VOLUME +’ button on the front panel.
Simultaneously press and hold the ‘ ’ button on the front panel.
Hold both keys, press the POWER button on the front panel.
The password screen is displayed.
Press it in order of ‘0’, ‘2’ and ‘7’ key of a remote control unit.
Then press the ENTER button.
The Hotel mode setting menu will appear.
Using the LEFT/RIGHT on the remote control, set the Hotel Lock to on.
Turn off the power.
The Hotel Lock has now been set up.
In power off mode, press and hold the ‘VOLUME+’ button on the front panel.
Simultaneously press and hold the ‘ ’ button on the front panel.
Hold both keys, press the POWER button on the front panel.
The password screen is displayed.
Press it in order of ‘0’, ‘2’ and ‘7’ key of a remote control unit.
Then press the ENTER button.
The Hotel mode setting menu will appear.
Using the LEFT/RIGHT on the remote control, set the Hotel Lock to off.
Turn off the power.
The Hotel Lock has now been cleared.
A1-2
Hotel Mode
Password ---
Hotel Mode
Hotel mode Off
Power on fixed
Maximum volume
Volume fixed
Volume fixe level
RC button
Panel button
Variable
50
Variable
22
Respond
Respond
Hotel Mode
Menu button
On Screen Display
Input mode start
Input mode fixed
Reset
Respond
Yes
1
Variable
FUNCTION
Hotel mode
Power on fixed
Maximum volume
Volume fixed
Volume fix level
RC button
Panel button
Menu button
ON/OFF setting for Hotel mode function.
Effective/invalid setting of POWER button on the set and remote cotrol. (*Note 1)
Effective/invalid setting of volume fix level function. (*Note 2)
Setting of output volume value.
Effective/invalid setting of remote control key operation. (*Note 3)
Effective/invalid setting of main key operation. (*Note 4)
Effective/invalid setting of menu key operation of set and remote cotrol. (*Note 4)
Setting of the maximum volume value (1~50).
On Screen Display
Input mode start
Input mode fixed
Reset
Display/non-display setting of analog menu, CALL, CH, audio, backlight, and volume level. (*Note 5)
Setting of input source at power supply On.
During the power on, effective/invalid setting of tuning the channel and input change operation. (*Note 6)
Various settings of the Hotel mode function return initial State.
Setting item
Note 1)
Note 2)
Note 3)
Note 4)
Note 5)
Note 6)
When setting it to “Fixed", the Sleep timer setting is turned off.
When setting it to “Fixed", the VOL+/- key operation of a main/ remote control and the MUTE key operation of a
remote control become invalid.
When setting it to “Fixed", the remote control operation and the service mode function in Hotel mode are effective.
When setting it to “Fixed", the service mode function in Hotel mode are effective.
The Sleep timer setting is turned off when setting it to "No", and the audio change withAUDIO key is invalid.
The Input mode fixed setting becomes effective when the Input mode start setting except for " Normal" setting.
When the ‘Power on fixed‘ is set to ‘fixed’, press and hold the
‘VOLUME +’ button and ‘ ’ button on the front panel simultaneously.
Hold both keys, press the POWER button on the front panel, the power
is turned off.
Then follow steps 1~8.
NOTE:

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)
•
•
•
A1-3

GENERAL SPECIFICATIONS
G-1 TV LCD LCD Size / Visual Size 19.7 inch / 500.3mmV
System LCD Type Color TFT LCD
Number of Pixels 640(H) x 480(V)
View Range Left/Right 85/85 degree
Up/Down 85/85 degree
Color System PAL, SECAM
Speaker 2 Speaker
Position Front
Size 1.2 x 2.8 inch
Impedance 8 ohm
Sound Output MAX 2W + 2W
10%(Typical) ---
AV Input Receivable NTSC3.58 Yes
NTSC4.43 Yes
PAL60Hz Yes
G-2 Tuning Broadcasting System Analog CCIR, French System B/G D/K I/I SECAM L/L'
System Digital -
Tuner and System 1Tuner
Receive CH Destination IR. + UK + CCIR Hyper + France CATV
CH Coverage IreE2~E4, X~Z+2, S1~S10, E5~E12, S11~S41, E21~E69
Intermediate Frequency PAL BG / PAL II / PAL DK, SECAM L / SECAM L' (VL)
Analog Picture(FP) 38.9 / 38.9 / 38.9 / 33.9 MHz
Sound(FS) 33.4 / 32.9 / 32.4 / 40.4 MHz
FP-FS 5.5 / 6.0 / 6.5 / 6.5 MHz
Digital -
ATS Area Setting Germany
Auto Tuning Method ALL Band (Not CCIR CH Plan)
Preset CH Analog 99
Digital -
Stereo/Dual TV Sound Nicam/A2 Dual
Tuner Sound Muting Yes
G-3 Power Power Source AC 220~240V AC 50/60Hz
DC ---
Power Consumption at AC 74W at AC 230V 50Hz
at DC ---
Stand by (at AC) 1W
Per Year --- kWh/Year
Protector Power Fuse Yes
Safety Circuit Yes
IC Protector (Micro Fuse) Yes
G-4 Regulation Safety CE(EN60065:2002), SEMKO
Radiation CE
X-Radiation ---
G-5 Temperature Operation
0
o
C
~ +4
0
o
C
Storage -2
0
o
C
~ +
60
o
C
G-6 Operating Humidity 35%RH ~ 75% RH
G-7 OSD Language English, Spanish, German, French, Italian,
Swedish, Dutch, Russian, Portuguese,
Turkish, Greek, Finnish, Polish
G-8 Clock and Sleep Timer Max Time 120 Min
Timer Step 30 Min
On/Off Timer Program(On Timer / Off Timer) No
Wake Up Timer No
EPG Timer Digital tuner only No
Timer Back-up (at Power Off Mode) more than -- Min Sec
A2-1

GENERAL SPECIFICATIONS
G-9 Remote Unit RC-NB
Control Glow in Dark Remocon No
Remocon Format SHARP
Format SHARP
Custom Code 10000 / 10001 / 01111
Power Source Voltage(D.C) 3V
UM size x pcs UM-3 x 2 pcs
Total Keys 40
Keys Standby/On Yes
BACKLIGHT Yes
Mute Yes
1 Yes
2 Yes
3 Yes
4 Yes
5 Yes
6 Yes
7 Yes
8 Yes
9 Yes
0 Yes
Flashback Yes
Input select Yes
Volume up Yes
Volume down Yes
Channel up Yes
Channel down Yes
WIDE MODE Yes
Sound Mode Yes
Display information Yes
SLEEP Yes
Teletext Yes
MENU Yes
UP Yes
LEFT Yes
OK / Channel list Yes
RIGHT Yes
DOWN Yes
END Yes
TOP/BOTTOM/FULL Yes
REVEAL Yes
HOLD Yes
SUBTITLE Yes
SUBPAGE Yes
RED Yes
GREEN Yes
YELLOW Yes
BLUE Yes
A2-2

GENERAL SPECIFICATIONS
G-10 Features Auto Power Off (Auto Shut Off) Yes
BBE No
Auto Search Yes
Sort (CH Allocation) Yes
Rotate No
Clock (Digital only) No
Just Clock Function No
Game Position No
CH Label Yes
T'Text Yes
Text type Fastext (FLOF) / Toptext
Text Language English, French, Swedish, Hungarian, Turkish, German,
Portuguese, Spanish, Italian, Greek, Slovakian, Russian,
Polish, Czech, Rumanian, Estonian, Lettish, Lithuanian,
Ukrainian, Croatian, Slovenian, Latvian
Subtitle Yes
Top Over View (Analog teletext only) No
Picture size Yes
Position (Picture Scroll) No
Surround Yes
Backlight Yes
Power On Memory Yes
Auto Set Up (Fast installation) Auto tuning (Analog tuner) Yes
CH sort Yes
ATS Yes
Auto clock (Analog tuner) No
Plug in start (Analog tuner) Yes
Picture Setting (TV) Brightness , Contrast , Color Yes
Tint Yes
Sharpness Yes
Black Stretch Yes
Backlight Yes
Picture Preference (AV Mode) Yes
Color Temperature Yes
DNR Yes
Picture Setting (PC) Brightness , Contrast Yes
Color Temperature Yes
Sound Setting Tone Control (Bass/Treble/Balance) Yes
Sound via No
Auto Vol Yes
Clear Voice Yes
Sound wide Yes
Lock Hotel Lock Yes
Child Lock Yes
PC Monitor Input Yes
VGA (640x480) Yes (60Hz)
VGA (720x400) No
WVGA (848x480) No
SVGA (800x600) Yes (60Hz)
XGA (1024x768) Yes (60Hz)
WXGA (1280x768) No
WXGA (1280x720) No
WXGA (1360x768) No
SXGA (1280x1024) No
Variable Audio Out No
Freeze frame No
Choke Coil No
Rec Screen Status No
Digital Text (VBI teletext) No
MHEG-5 No
MHP No
EPG (BBC type 8Days Digital tuner only) No
OAD (Over Air Download) (UK only) No
Common Interface (Digital tuner only) No
LCN Renumber No
Country select (Digital Only) No
Ch sorting based on Ch List (Digital/Germany only) No
Ch Allocation (Digital) No
Favorite Ch (Digital) No
Rename Service/Carrier (Digital) No
A2-3

GENERAL SPECIFICATIONS
G-11 Accessories Owner's Manual Language English, German, French, Italian, Dutch, Spanish
Greek, Portuguese, Swedish, Finnish, Danish
Norwegian, Polish, Hungarian, Czech, Slovak, Ukrainian
w/Guarantee Card No
Remote Control Unit Yes
Rod Antenna Poles -
Terminal -
Loop Antenna (W/ Antenna Change Plug)
Terminal -
U/V Mixer No
DC Car Cord (Center+) -
Guarantee Card No
Warning Sheet No
Circuit Diagram No
Antenna Change Plug No
Service Facility List No
Important Safeguard No
Dew/AHC Caution Sheet -
Quick Set-up Sheet No
Battery Yes
UM size x pcs UM-3 x 2 pcs
OEM Brand No
AC Adapter -
AC Cord (for AC Adapter) -
AC Cord Yes
AV Cord (2Pin-1Pin) No
Registration Card No
Information Sheet(WEEE) No
300 ohm to 75 ohm Antenna Adapter No
Cable Clamp (x1) Yes
Information Sheet(Eco Sheet) Yes
A2-4

GENERAL SPECIFICATIONS
G-12 Interface Switch Side Sub Power (Tact) Yes
System Select No
Main Power SW No
Sub Power (Push) No
Channel Up/Menu Up Yes
Channel Down/Menu Down Yes
Volume Up/Menu > Yes
Volume Down/Menu < Yes
Input Select Yes
Menu Yes
Indicator Power No
Stand-by No
Power / Stand-By Yes (Green / Red)
On Timer No
OPC No
Terminals Rear Video Output No
Color Stream 2 No
Diversity No
Ext Speaker No
DC Jack 12V (Center +) No
Bottom VHF/UHF Antenna Input DIN x1
AC Inlet Yes
Audio Output (L, R) RCA x2 (Fix)
Other Terminal RS-232C x1
Euro Scart (21Pin) EXT1 Yes (CVBS In, RGB In, Tuner Out)
Euro Scart (21Pin) EXT2 Yes (CVBS In, Y/C In, Video Out)
PC Monitor Input (D-Sub) Yes
Audio Input (Mini Pin) Yes
Side CI Card slot No
Audio Input No
Video Input EXT3 RCA x1
Audio Input EXT3 (L/Mono, R) RCA x2 (L/MONO,R White,Red)
S Video Input EXT3 S-Jack x1
Other Terminal Headphone x1
Front Other Terminal No
G-13 Set Size Approx. W x D x H (mm) 483 x 225 x 435
w/o Stand, Handle Approx. W x D x H (mm) 483 x 96 x 399.5
G-14 Weight Net Approx. 7.4kg
Gross Approx. 10.4kg
G-15 Carton Master Carton No
Content ----
Material --
Dimensions W x D x H(mm) -- x -- x --
Description of Origin No
Gift Box Material Double/Brown
Dimensions W x D x H(mm) 588 x 313 x 542
Description of Origin Yes (Made in Japan)
Drop Test Natural Dropping At 1 Corner /
3
E
dges
/
5
Su
rf
aces
Height (cm) 48
Container Stuffing 556
w/Pallet Yes
w/Wrapping No
G-16 Material Cabinet Cabinet Front PC+ABS 94V-0 Non-Halogen
Cabinet Rear PC+ABS 94V-0 Non-Halogen
PCB Non-Halogen No
Eyelet Yes
G-17 Environment Environmental standard requirement (by buyer) Green procurement of SHARP
Pb-free Phase3 (Phase3A)
Measures for Whisker Yes
WEEE Yes
A2-5

DISASSEMBLY INSTRUCTIONS
B1-1
1. REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
1-1: COVER BACK/STAND ASS'Y (Refer to Fig. 1-1)
1.
2.
3.
4.
5.
6.
7.
8.
Unlock the 2 supports 1.
Remove the Cover Back in the direction of arrow (A).
Remove the 3 screws 2.
Remove the Stand Ass'y in the direction of arrow (B).
Remove the 5 screws 3.
Remove the Frame Stand in the direction of arrow (C).
Remove the 4 screws 4.
Remove the Angle Stand in the direction of arrow (D).
1-3: OPERATION PCB (Refer to Fig. 1-3)
1.
2.
3.
4.
5.
Disconnect the following connectors:
(CP301 and CP4201).
Remove the 2 screws 1.
Remove the Plate Button Ass'y in the direction of arrow
(A).
Remove the 4 screws 2.
Remove the Operation PCB in the direction of arrow
(B).
Fig. 1-3
1-2: BACK CABINET (Refer to Fig. 1-2)
1.
2.
3.
Remove the 9 screws 1.
Remove the 4 screws 2.
Remove the Back Cabinet in the direction of arrow.
Fig. 1-2
Fig. 1-1
Cover Back
Stand
(A) 22
1
1
(B)
2
43
(C)
(D)
Angle Stand
Frame Stand
3
3
4
Back Cabinet
2
1
11
111
11
1
2
2
2
1-4: MAIN PCB (Refer to Fig. 1-4)
1.
2.
3.
4.
5.
6.
7.
Disconnect the following connectors:
(CP302, CP3400, CP3401, CP4301 and CP7201).
Remove the 7 screws 1.
Remove the Main PCB in the direction of arrow (A).
Remove the 2 screws 2.
Remove the 3 screws 3.
Remove the Plate Jack in the direction of arrow (B).
Remove the Shield Jack in the direction of arrow (C).
1
Operation PCB
2
1
2
2
2
Plate Button Ass'y
(B)
(A)
1
Main PCB
Fig. 1-4
1
1
1
1
1
Shield Jack
Plate Jack
2
1
2333
(A)
(B)
(C)

DISASSEMBLY INSTRUCTIONS
B1-2
Fig. 1-5
1-5: SCALER PCB (Refer to Fig. 1-5)
1.
2.
3.
4.
Disconnect the following connectors:
(CP6700, CP6701, CP6702, CP6703 and CP6705).
Remove the 7 screws 1.
Remove the Power PCB in the direction of arrow (A).
Remove the Holder PCB in the direction of arrow (B).
1-6: LCD COVER/LCD PANEL (Refer to Fig. 1-6)
1.
2.
3.
4.
Remove the 2 screws 1.
Remove the Angle Frame in the direction of arrow (A).
Remove the LCD Cover in the direction of arrow (B).
Remove the LCD Panel in the direction of arrow (C).
Fig. 1-6
1
Power PCB
(B)
(A)
1
1
111
1
Holder PCB
Front Cabinet
Angle Frame
1
(A)
(B)
(C)
LCD Panel
LCD Cover
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 unit 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 a 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, be always 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.)
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.
POWER ON total hours are displayed on the screen.
Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS"
(CONFIRMATION OF HOURS USED).
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
Set Key Operations
Remocon
Key
VOL. DOWN
(Minimum) 1 2 sec.
Standard
Time
VOL. DOWN
(Minimum) 6 2 sec.
VOL. DOWN
(Minimum) 9 2 sec.
Set
Condition
TV mode
ALL mode
TV mode
Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display
Adjustment).
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
NOTE: If you set a factory initialization, the total hours is reset to "0".
1.
2.
3.
4.
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.
After the confirmation of POWER ON total hours, turn off the power.
Initial setting content of MEMORY IC.
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
CONFIRMATION OF POWER ON TOTAL HOURS
ADDRESS DATA
OEC7162A-083
INIT 0000 F8
LCD ON 0000
Check of the SUM DATA and MICON VERSION on the screen.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
VOL. DOWN
(Minimum) 2 sec.
TV mode 2

C-2
CONFIRMATION OF CHECK SUM, MICON VERSION AND DIGITAL TV MICON FIRMWARE
Initial total of MEMORY IC, MICON VERSION and Digital TV MICON Firmware can be checked on the screen. Total hours
are displayed in 16 system of notation.
NOTE:
Initial setting data check sum. MICON Version
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.
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
OEC7162A-083
INIT 0000 F8
LCD ON 0000
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.
2.
3.
4.
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 (2) on the remote control for more than 2 seconds.
After the confirmation of MICON VERSION and Digital TV MICON Firmware, turn off the power.
ADDRESS and DATA should appear as FIG 1.
*1 DVP1 is different according to each set.
Rom correction data check sum.
SCALER data check sum.
Version
Hardware version
Software version
OEC7162A-083
INIT: 6A10
ADC: 0000
2.0
ADDD0400-A
[PRE-PRODUCTION]
ROM: 7E5F
DVP: 1F84 *1
Firmware Version
FIG. 1

C-3
Confirm that the AC cord is plugged out.
Using the Serial Communication Change JIG (JG198), connect the set to personal computer. (Refer to Fig. 1)
RE-WRITE FOR DIGITAL SOFT FIRMWARE
1.
2.
3.
Ref. No.
JG198
Part No.
APJG201000
Parts Name
Serial Communication
Change JIG
Remarks
Up-Date of the Firmware
JG176
Using the Flash UP-Date Soft Disc (JG199) and DTV ROM DISC (JG176), please Re-write the DIGITAL SOFT FIRMWARE.
The operating manual for Re-writing is included in Flash UP-Date Soft Disc (JG199).
JG199JG198
Serial Communication
Change JIG
Flash UP-Date Soft
Disc
Flash UP-Date Soft Disc
APJG200000
JG199
Up-Date of the FirmwareAPJG176109
JG176
Connect the set to personal computer
DTV ROM DISC
NOTE: It is possible to write only with the personal computer of WINDOWS.
DTV ROM DISC
Fig. 1

ELECTRICAL ADJUSTMENTS
D-1
1. ADJUSTMENT PROCEDURE
Read and perform these adjustments when repairing the
circuits or replacing electrical parts or PCB assemblies.
CAUTION
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. 2-1.
Fig. 2-1
3.
4.
Use the UP/DOWN button or Channel button (0-9) on
the remote control to select the options shown in
Fig. 2-2.
Press the MENU button on the remote control to end
the adjustments.
FUNCTION
H POSI OSD
V POSI OSD
R DRIVE (H)
R CUTOFF (H)
G DRIVE (H)
G CUTOFF (H)
B DRIVE (H)
B CUTOFF (H)
R DRIVE (M)
R CUTOFF (M)
G DRIVE (M)
G CUTOFF (M)
B DRIVE (M)
B CUTOFF (M)
R DRIVE (L)
R CUTOFF (L)
G DRIVE (L)
G CUTOFF (L)
B DRIVE (L)
B CUTOFF (L)
H POSI
H POSI MAX
NO.
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
•
•
•
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
damage to the IC and Transistor).
2. BASIC ADJUSTMENTS
NO.
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
FUNCTION
H POSI MIN
V POSI
V POSI MAX
V POSI MIN
BAK LIGHT CENT
BAK LIGHT MAX
BAK LIGHT MAX
BRIGHT CENTER
BRIGHT MAX
BRIGHT MIN
TINT CENTER
CONTRAST CENTER
CONTRAST MAX
CONTRAST MIN
CONTRAST 50
COLOR CENTER
COLOR MAX
COLOR MIN
TEXT H POSI
TEXT V POSI
DAC Vcom
Prepare the following measurement tools for electrical
adjustments.
1. Pattern Generator
Fig. 2-2
2-2: WHITE BALANCE
1.
2.
3.
4.
5.
6.
7.
8.
Place the set in Aging Test for more than 15 minutes.
Receive the gray scale pattern from the Pattern
Generator.
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 (03) on the remote control to
select “R DRIVE (N)”.
Press the UP/DOWN button on the remote control to
select the “R CUTOFF (N)”, “B DRIVE (N)”, “B CUTOFF
(N)”, “R DRIVE (C)”, “R CUTOFF (C)”, “B DRIVE (C)”, “B
CUTOFF (C)”, “R DRIVE (W)”, “R CUTOFF (W)”, “B
DRIVE (W)” and “B CUTOFF (W)”.
Adjust the RIGHT/LEFT button on the remote control to
whiten the R CUTOFF (N), B DRIVE (N), B CUTOFF (N),
R DRIVE (C), R CUTOFF (C), B DRIVE (C), B CUTOFF
(C), R DRIVE (W), R CUTOFF (W), B DRIVE (W) and B
CUTOFF (W) at each step tone sections equally.
Perform the above adjustments 5 and 6 until the white
color is looked like a white.
TV
01 H POSI OSD 9
2-1: FLICKER
1.
2.
3.
4.
Activate the adjustment mode display of Fig. 2-1 and
press the channel button (43) on the remote control to
select “DAC Vcom”.
Check if the screen is flashing.
If screen is flashing, press the" i+" button on the
remote control and using the LEFT/RIGHT button on
the remote control to adjust the screen.

2-3: Confirmation of Fixed Value (Step No.)
Please check if the fixed values of each of the ad
j
ustment items are set correctl
y
referrin
g
below.
(
A-TU/EXT1
,
EXT2
(
CVBS
)
/EXT3
(
CVBS
)
/EXT2
(
S
(
Y/C
))
/EXT3
(
S
(
Y/C
))
/EXT1
(
RGB
)
PAL50Hz PAL60Hz SECAM PAL50Hz PAL60Hz SECAM NTSC3.58 NTSC4.43 PAL50Hz PAL60Hz SECAM NTSC3.58 NTSC4.43 PAL50Hz PAL60Hz SECAM NTSC3.58 NTSC4.43 PAL50Hz PAL60Hz SECAM NTSC3.58 NTSC4.43 PAL50Hz PAL60Hz SECAM NTSC3.58 NTSC4.43
NO. FUNCTION
1 H POSI OSD 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9
2 V POSI OSD 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
3 R DRIVE (H) ******* * **** ***** * **********
4 R CUTOFF (H) ******* * **** ***** * **********
5 G DRIVE (H) ******* * **** ***** * **********
6 G CUTOFF (H) ******* * **** ***** * **********
7 B DRIVE (H) ******* ***** ***** * **********
8 B CUTOFF (H) ******* * **** ***** * **********
9 R DRIVE (M) ******* ***** ***** * **********
10 R CUTOFF (M) ******* * **** ***** * **********
11 G DRIVE (M) ******* * **** ***** * **********
12 G CUTOFF (M) ******* ***** ***** * **********
13 B DRIVE (M) ******* ***** ***** * **********
14 B CUTOFF (M) ******* ***** ***** * **********
15 R DRIVE (L) ******* * **** ***** * **********
16 R CUTOFF (L) ******* * **** ***** * **********
17 G DRIVE (L) ******* ***** ***** * **********
18 G CUTOFF (L) ******* * **** ***** * **********
19 B DRIVE (L) ******* * **** ***** * **********
20 B CUTOFF (L) ******* * **** ***** * **********
21 H POSI 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626 626
22 H POSI MAX --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
23 H POSI MIN --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
24 V POSI 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28
25 V POSI MAX --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
26 V POSI MIN --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
27 BAK LIGHT CENTER 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117 117
28 BAK LIGHT MAX 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230
29 BAK LIGHT MIN 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48
30 BRIGHT CENTER 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12
31 BRIGHT MAX 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40
32 BRIGHT MIN -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 -100
33 TINT CENTER 0000000 0 000 0 0 000 0 0 0000000000
34 CONTRAST CENTER ******* * **** ***** * **********
35 CONTRAST MAX ******* * *** * ***** * **********
36 CONTRAST MIN 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14
37 CONTRAST 50 ******* ***** ***** * **********
38 COLOR CENTTER 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36
39 COLOR MAX 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63 63
40 COLOR MIN 0000000 0 000 0 0 000 0 0 0000000000
41 TEXT H POSI 0000000 0 000 0 0 000 0 0 0000000000
42 TEXT V POSI 0000000 0 000 0 0 000 0 0 0000000000
43 DAC Vcom ******* ***** ***** * **********
NOTE: For the st
e
For the step no. with * mark, please adjust it according to the situation of the set.
Step No.
ELECTRICAL ADJUSTMENTS
EXT1
RGB
EXT3EXT2EXT3EXT1,EXT2
A-TU
576i CVBS CVBS S(Y/C) S(Y/C) 576i 480i576i 480i 576i 480i 576i 480i 576i 480i
D-2 D-3

TROUBLESHOOTING GUIDE
E-1
POWER DOES NOT TURN ON
NO
IS F501 BROKEN ? YES CHANGE F501.
NO
YES
CHECK IC501 AND
PERIPHERAL CIRCUIT.
NO
YES
CHECK IC504 AND
PERIPHERAL CIRCUIT.
OR CHANGE IC504.
CHANGE AV PCB.
IS THERE VOLTAGE
AT PIN 2 OF IC504
AT5V ?
IS THERE VOLTAGE
AT PIN 4 OF IC501
18.9V ?

TROUBLESHOOTING GUIDE
E-2
THE PICTURE DOES NOT
APPEAR (1).
CONNECT CD7201.
YES
IS CD7201 CONNECTED ?
NO
YES
CHANGE CP7201.
IS THERE SIGNAL
AT IC7201 ? CHANGE IC7201.
IS THERE SIGNAL
AT CP7201 ?
NO
YES
CHECK IC801.
OR CHANGE SCALER PCB.
NO