Sharp LC-60LE822E Schematic

LC-60LE822E/LC-60LE822ERU
SERVICE MANUAL
No. S90L460LE822E
LCD COLOUR TELEVISION
LC-60LE822E
MODELS
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.
LC-60LE822ERU
CONTENTS
SAFETY PRECAUTION
PRECAUTION.....................................................i
Precautions for using lead-free solder ...............ii
End of life disposal ............................................ iii
OUTLINE
MAJOR SERVICE PARTS ................................ iv
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS ......................................... 1-1
CHAPTER 2. OPERATION MANUAL
[1] Parts Name .................................................... 2-1
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS ................................................ 3-1
CHAPTER 4. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS ................... 4-1
[2] Caution Cleaning Glass ................................. 4-6
[3]
How to replace the Touch Sensor key PWB
......... 4-8
CHAPTER 5. TOUCH SENSOR UNIT POSITIONING FIGURE
[1] TOUCH SENSOR UNIT POSITIONING
FIGURE .........................................................5-1
CHAPTER 6. ADJUSTMENT
[1] ADJUSTMENT PROCEDURE ......................6-1
CHAPTER 7. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE ......................7-1
[2] LED flashing specification at the time of the
error .............................................................7-14
CHAPTER 8. MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS .........................8-1
CHAPTER 9. OVERALL WIRING/BLOCK DIAGRAM
[1] OVERALL WIRING DIAGRAM ......................9-1
[2] SYSTEM BLOCK DIAGRAM .........................9-2
Parts Guide
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.
This document has been published to be used for after sales service only. The contents are subject to change without notice.
LC-60LE822E/LC-60LE822ERU
LC-60LE822E
SAFETY PRECAUTION
Service Manual
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow:
WARNING
1. For continued safety, no modification of any circuit should be attempted.
2. Disconnect AC power before servicing.
CAUTION:
FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE.
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sen­sitivity or measure the AC voltage drop across the resistor.
• Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. All checks must be repeated with the AC cord plug connection reversed. (If necessary, a nonpolarized adaptor plug must be used only for the purpose of completing these checks.) Any reading of 1.05 V peak (this corresponds to 0.7 mA peak AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner.
F7000, F7001 (5A/250V)
DVM
BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)
Before returning the receiver to the user, perform the following safety checks:
3. Inspect all lead dress to make certain that leads are not pinched, and check that hardware is not lodged between the chassis and other metal parts in the receiver.
4. Inspect all protective devices such as non-metallic control knobs, insulation materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc.
5. To be sure that no shock hazard exists, check for leakage current in the following manner.
• Plug the AC cord directly into a 220~240 volt AC outlet.
• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral­leled by a 0.15µF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as electrical conduit or elec­trical ground connected to an earth ground.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
TO EXPOSED METAL PARTS
SAFETY NOTICE
Many electrical and mechanical parts in LCD color television have special safety-related characteristics.
These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily increased by using replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features
are identified by “ ” and shaded areas in the Replacement Parts List and Schematic Diagrams.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
For continued protection, replacement parts must be identical to those used in the original circuit.
The use of a substitute replacement parts which do not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire or other hazards.
AC SCALE
1.5k ohm 10W
0.15µF
TEST PROBE
CONNECT TO KNOWN EARTH GROUND
i
LC-60LE822E/LC-60LE822ERU
Precautions for using lead-free solder
Employing lead-free solder
• “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.
Example:
L Fa
Indicates lead-free solder of tin, silver and copper.
Indicates lead-free solder of tin, silver and copper.
L F a/a
Using lead-free wire solder
• When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause dam­age or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 °C, we recommend you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.
Soldering
• As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 °C which is higher than the conventional lead solder by 40 °C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
• Be careful when replacing parts with polarity indication on the PWB silk.
Lead-free wire solder for servicing
Part No. Description Code
ZHNDAi123250E J φ0.3mm 250g (1roll) BL ZHNDAi126500E J φ0.6mm 500g (1roll) BK ZHNDAi12801KE J φ1.0mm 1kg (1roll) BM
ii
LC-60LE822E/LC-60LE822ERU
End of life disposal
End of life disposal
iii
LC-60LE822E/LC-60LE822ERU
LC-60LE822E
OUTLINE
Service Manual
MAJOR SERVICE PARTS
PWB UNIT
Ref No. Parts Code Description
N DKEYDF455FM07 MAIN Unit (*1) N DUNTKF494FM02 R/C, LED Unit N DUNTKF493FM03 ICON Unit N DUNTKF493FM04 LOGO Unit N RUNTKA761WJQZ TOUCH SENSOR Key Unit(*2) N RUNTKA729WJQZ POWER/LED CONTROL Unit N RUNTK4512TPZA LCD CONTROL Unit
NOTE: (*1) Replace MAIN Unit (DKEYDF455FM07) in case of IC8401 or IC3302 failure.
(*2) TOUCH SENSOR Key Unit (RUNTKA761WJQZ) reuse will be impossible, once it is stuck on front cabinet and exfoliates.
Therefore, please exchange of a TOUCH SENSOR Key Unit in the case of front cabinet exchange.
OTHER UNIT
Ref No. Parts Code Description
N R1LK600D3LW20Z 60" LCD Panel Module Unit
IC FOR EXCLUSIVE USE OF THE SERVICE
Ref No. Parts Code Description Q’ty
IC501 RH-iXD108WJQZS IC 24LC21AT-I/SN 1 IC2002 RH-iXC786WJNJQ IC R5F364A6NFB 1
SERVICE JIGS
Ref No. Parts Code Description Q’ty
N QCNW-G616WJQZ Main Unit to LCD Control Unit (LW) 1 N QCNW-G625WJQZ Main Unit to Power Unit (PL) 1 N QCNW-H184WJQZ Main Unit to Power Unit (PD) 1 N QCNW-H185WJQZ Main Unit to Power (LED Drive) Unit (LB) 1 N QCNW-K594WJQZ Main Unit to R/C, LED Unit (RA) 1 N QCNW-K595WJQZ Main Unit to Speaker (SP) 1 N QCNW-K596WJQZ Main Unit to Icon Unit (RL) 1 N QCNW-K597WJQZ Main Unit to Woofer (SB) 1
iv
LC-60LE822E/LC-60LE822ERU
LC-60LE822E
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS
Service Manual
Item
LCD panel
LCD COLOUR TV (60"/152 cm), LC-60LE822E, LC-60LE822ERU
152 cm (60") X-Gen panel
Resolution 1,920 x 1,080 x 4 dots
Video colour system PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV function TV-standard Analogue CCIR (B/G, I, D/K, L/L’)
Digital DVB-T (2K/8K OFDM), DVB-C, DVB-S/S2
Receiving channel
VHF/UHF
CATV
Satellite
IR A ch_E69 ch (Digital), E2_E69 ch, F2_F10 ch, I21_I69 ch, IR A_IR J ch
Hyper-band, S1_S41 ch
950_2150 MHz*
3
TV-tuning system Auto Preset 999 ch (non-Nordic [DTV]), Auto Preset 9999 ch (Nordic [DTV]),
Auto Preset 99 ch (ATV), Auto Label, Auto Sort, Auto Preset 9999 ch (SAT)
STEREO/BILINGUAL NICAM/A2
Audio amplifier 10 W x 2/15 W x 1
Speaker (234 mm x 22 mm) x 2/Ø 110 mm
Terminals Antenna
UHF/VHF 75 Din type (analogue & digital), Satellite 75 Ω F type (DVB-S/S2)
RS-232C D-Sub 9 pin male connector
EXT 1 SCART (AV input, Y/C input, RGB input, TV output)
EXT 2 RCA pin (AV input/AUDIO L/R)
EXT 3 15 pin mini D-sub
HDMI 1 (EXT 4) HDMI (ARC)
HDMI 2 (EXT 5) HDMI
HDMI 3 (EXT 6) HDMI
HDMI 4 (EXT 7) HDMI
USB USB
ETHERNET (10/100) Home network connector
HDMI 2/EXT 3 AUDIO (L/R) Ø 3.5 mm jack*
1
DIGITAL AUDIO OUTPUT Optical S/PDIF digital audio output
C. I. (Common Interface) EN50221, R206001, CI Plus specification
OUTPUT/Headphones RCA pin (AUDIO R/L)/Ø 3.5 mm jack (audio output)
OSD language Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek,
Hungarian, Italian, Latvian, Lithuanian, Norwegian, Polish, Portuguese, Russian, Slovak, Slovene, Spanish, Swedish, Turkish, Ukrainian
Power requirement
Power consumption (method IEC62087) 198 W (0.2 W standby*
AC 220_240 V, 50 Hz
2
)
Weight 42.0 kg (without stand), 52.9 kg (with stand)
Operating temperature
The HDMI 2 and EXT 3 terminals can both use the same audio input terminal.
*1
Standby power consumption applies when the TV is set to not receive EPG data.
*2
*3
The satellite channel’s frequency may vary according to satellites and antennas.
As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for product
0°Cto+40°C
improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.
1 – 1
LC-60LE822E
CHAPTER 2. OPERATION MANUAL
[1] Parts Name
TV (front view)
1 3 458672
Service Manual
1 2
3 4 5 6 7 8
LC-60LE822E/LC-60LE822ERU
VOL / (Volume buttons) CH / (Programme [channel]
buttons)
INPUT (Input source button) MENU (Menu button) POWER (Power button)
OPC sensor Remote control sensor Illumination LED
TV (rear view)
1
*2
17
3 4 5
2
6
7
8
9
10
11
12
13
14
15
16
*1
Antenna terminal
1
Satellite antenna terminal
2
EXT 1 (RGB) terminal
3
RS-232C terminal
4
DIGITAL AUDIO OUTPUT
5
terminal USB terminal
6
ETHERNET (10/100) terminal
7
OUTPUT (Headphones/AUDIO
8
(L/R)) terminal EXT 2 (AV IN/VIDEO/AUDIO (L/R))
9
terminal EXT 3 (ANALOGUE RGB (PC/
10
COMPONENT)) terminal HDMI 2/EXT 3 AUDIO (L/R) jack
11 12
HDMI 1 (HDMI/ARC) terminal HDMI 2 (HDMI) terminal
13 14
HDMI 3 (HDMI) terminal
15
HDMI 4 (HDMI) terminal
16
C.I. (COMMON INTERFACE) slot
17
MAIN POWER switch
WARNING
Excessive sound pressure from earphones and headphones can cause hearing loss. Do not set the volume at a high level. Hearing experts advise against extended listening at high volume levels.
The HDMI 2 and EXT 3 terminals can both use the same audio input terminal (HDMI 2/EXT 3 AUDIO (L/R)). However, the proper item
*1
must be selected in the "Audio select" menu. When the MAIN POWER switch is turned off ( ), the amount of electric power consumed will be reduced to 0.01 W or less. However,
*2
unlike when unplugging the AC cord, the power is not completely disconnected.
2 – 1
LC-60LE822E/LC-60LE822ERU
Remote control unit
1
TV (Standby/On)
2
ATV
Press to access conventional analogue TV mode.
DTV
Press to access digital TV mode.
SAT
Press to access satellite mode.
RADIO
DTV/SAT: Switch between radio and data mode.
When only data broadcasting (no radio broadcasting) is transmitted by DVB, the radio broadcasting will be skipped.
3
AQUOS LINK buttons
If external equipment such as a AQUOS BD player is connected via HDMI cables and is AQUOS LINK compatible, you can use these AQUOS LINK buttons.
4
TIME SHIFT (READY/ /
)
/
Press to temporarily record a programme you are watching if you want to interrupt a programme to answer a phone call, for example.
5
Numeric buttons 0_9
Set the channel. Enter desired numbers. Set the page in teletext mode.
When the five Nordic countries (Sweden, Norway, Finland, Denmark or Iceland) are selected in the country setting from "Auto installation", DTV services are four digits. When another country is selected, DTV services are three digits.
6
7
8
(Flashback)
Press to return to the previously selected channel or external input.
(Sound mode)
Select a sound multiplex mode.
(Wide mode)
Select a wide mode.
(Mute)
TV sound on/off.
114 2
3
4
5
6
7
8 9
10
11
12
13
9
10
11
12
13
+/- (Volume)
Increase/decrease TV volume.
MENU
"Menu" screen on/off.
CONTROL
Press to display the panel to operate some functions on the screen.
/// (Cursor) Select a desired item on the setting screen.
OK
Execute a command within the "Menu" screen. ATV/DTV/SAT: Display "CH list" when no other "Menu" screen is running.
END
Exit the "Menu" screen.
15
16
17 18
19
20 21 22
14
15
16
17
18
19
20
21
22
(Display information)
Press to display the station information (channel number, signal, etc.) in the upper right corner of the screen.
P. INFO
Press to display programme information transmitted through digital video broadcasting (DTV/SAT only).
(INPUT)
Select an input source.
AV MODE
Select a video setting.
ECO (Standard/Advanced/Off)
Select "Energy save" setting.
(Teletext)
ATV: Display analogue teletext DTV/SAT: Select MHEG-5 and teletext for DTV/SAT.
P/
Select the TV channel.
EPG
DTV/SAT: Display the EPG screen
(Return)
Return to the previous "Menu" screen.
Buttons for useful operations
(Subtitle)
Switch subtitle languages on/off.
(Reveal hidden teletext) (Subpage)
(Freeze/Hold)
Press to freeze a moving image on the screen. Teletext: Stop updating teletext pages automatically or release the hold mode.
R/G/Y/B (Colour) buttons
The coloured buttons are correspondingly used to select the coloured items on the screen (e.g., EPG, MHEG-5, teletext).
2 – 2
LC-60LE822E
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS
1439.0
1334.2
913.0
975.0
LC-60LE822E/LC-60LE822ERU
Service Manual
Unit: mm
400.0
NOTE
Dimensions do not include protrusions such as screws and some parts.
62.0
121.0
400.0
752.6
546.0
580.0
40.0 174.0
368.0
3 – 1
LC-60LE822E/LC-60LE822ERU
LC-60LE822E
CHAPTER 4. REMOVING OF MAJOR PARTS
Service Manual
[1] REMOVING OF MAJOR PARTS
1. Removing of Stand Unit and Rear Cabinet Ass’y.
1. Remove the 3 lock screw and detach the Support Cover .
2. Remove the 4 lock screws and detach the Stand Unit .
3. Remove the 1 lock screw and detach the AC Cord Cover .
4. Disconnect AC Cord .
5. Remove the 4 lock screws , 5 lock screws , 2 lock screws and 18 lock screws and detach the Rear Cabinet Ass’y.
Rear Cabinet Ass'y
AC Cord
11
Support Cover
1
10
10
7
6AC Cord Cover
5
2
8
3
9
4 – 1
4Stand Unit
2. Removing of Speaker-L/R.
1. Remove the 2 lock screws and detach the Stand Cover .
2. Disconnect SP wire.
3. Detach the Speaker-L , Speaker-R .
4. Detach the Insulation Sheet (AC)
5
Insulation Sheet (AC)
LC-60LE822E/LC-60LE822ERU
MAIN Unit
[SP]
[SP]
4Speaker-R
3 Speaker-L
2 Stand Cover
1
4 – 2
LC-60LE822E/LC-60LE822ERU
3. Removing of Connectors
1. Disconnect the following connectors from the MAIN Unit. (SB, LB, PD, LW, RA, RL)
2. Disconnect the following connectors from the POWER/LED Drive Unit. (AS, L1, L2, LB, PD, PL)
3. Disconnect the following connectors from the LCD Control Unit. (LW, PL)
MAIN UnitPOWER/LED Drive Unit
[LW]
[PL]
LCD Control Unit
[AS]
POWER/LED Drive Unit
[PL]
[L1] [L2]
[LB]
[PD]
MAIN Unit
[SB]
[LB]
[PD]
[LW] [RA] [RL]
4 – 3
LC-60LE822E/LC-60LE822ERU
4. Removing of MAIN Unit, POWER/LED Drive Unit, Woofer, Stand Angle,60” LCD Panel Module Unit.
1. Remove the 6 lock screws and detach the MAIN Unit .
2. Remove the 2 lock screws and detach the Terminal Angle (Bottom) .
3. Remove the 2 lock screws and detach the Terminal Angle (Side) .
4. Remove the 6 lock screws and detach the POWER/LED Drive Unit .
5. Remove the 4 lock screws and detach the Woofer .
6. Remove the 1 lock screw and detach the LCD Angle (Bottom-R) .
7. Remove the 4 lock screws and detach the LCD Angle (Top-L) .
8. Remove the 2 lock screws and detach the LCD Angle (Top-R) .
9. Remove the 2 lock screws and detach the LCD Angle (Bottom-L) .
10.Remove the 12 lock screws and detach the 2 Stand Angle .
11.Remove the 4 lock screws and detach the 4 FIX Angle (B-MA) .
12.Remove the 2 lock screws and detach the Back Light Chassis Support Angle .
13.Remove the 9 lock screws and detach the 60” LCD Panel Module Unit .
14.Remove the 2 lock screws and detach the ECO Switch with Holder .
9
10
Woofer
(Top-L)
[SB]
27
28
ECO Switch
with Holder
(Bottom-L)
25
25
18LCD Angle
14LCD Angle
13
17
7
13
20
Stand Angle
17
POWER/LED
8
Drive Unit
23
22
FIX Angle (B-MA)
15
1
24
20
Stand Angle
21
1919
15
16 LCD Angle
(Top-R)
2 MAIN Unit
5
6
TERMINAL Angle (Side)
4
TERMINAL Angle (Bottom)
3
Back Light Chassis Support Angle
[L1] [L2]
25
60" LCD Panel Module Unit
12
LCD Angle (Bottom-R)
11
4 – 4
LC-60LE822E/LC-60LE822ERU
5. Removing of R/C, LED Unit, ICON Unit, LOGO Unit, Front Cabinet Ass’y, Glass Front Panel Ass’y, TOUCH SENSOR KEY Unit.
1. Detach the R/C, LED Unit .
2. Detach the ICON Unit .
3. Detach the LOGO Unit .
4. Remove the 25 Hooks and detach the Front Cabinet Ass’y
5. Detach the Glass Front Panel Ass’y .
6. Detach the Touch Sensor Key Unit .
NOTE: The Touch Sensor Key unit removed once is not reusable.
Front Cabinet Ass'y5
4 4
4 4
[RA]
1 RC,LED
Unit
4
2 ICON Unit
[R]
6
3 LOGO Unit
[RL]
Glass Front Panel Ass'y
[RK]
7 TOUCH SENSOR KEY Unit
4 – 5
[2] Caution Cleaning Glass
glass
glass
cushion material
flat mat
1. Glass handling
CAUTION: (1) As for handling, wear clean gloves, protective footwear-
and mask.
LC-60LE822E/LC-60LE822ERU
(4)Have a designated place at the time of the handling.
Back side : Black print part
Front side : Protection tape part
You must not have a clear surface.
protective footwear
(2) Inner gloves are covered in the Nitrile gloves.
Inner gloves Nitrile gloves
(3) Nitrile gloves are exchanged with the following standard.
• When it touched a face and so on.
• When another work was done.
• By the work of fifty times.
• In the time for recess.
• When it became dirty.
• When it tore.
Inner gloves
Nitrile gloves
mask
(5) Two people have handling equally by the work.
(Maintain it so that glass is not warped.)
(6) When it is put horizontally, it is put on the flat mat.
glass
flat mat
(7) A cushion material is put between glass.
It doesn't touch it [the front and the front].
It can be put to two glass.
changed to new Nitrile gloves
(8) It has a module part before the CAB-B installation.
(It has a module part.)
A module isn't added. You must not have it.
4 – 6
LC-60LE822E/LC-60LE822ERU
l
2. Glass cleaning
CAUTION: (1) Visual inspection is done on the black mat.
black mat
(2) Dust and trash are taken with an air blow.
Air blow
glass
(3) Dirt is wiped out with cloth.
Ex.) Cotton
(4) When dirt doesn't clean, it is wiped out with Alcohol.
Alcoho
Cotton
(5) Dirt is wiped out with the Ethanol and clean cloth.
When wipe off a dirt the trace which wiped do not be left.
4 – 7
[3] How to replace the Touch Sensor key PWB
1. Replace the touch sensor key PWB in a clean room.
Be sure to remove the dust from the unit before carrying it into the clean room.
2. Remove the touch sensor key PWB from the front glass.
3. Clean the bonding surface with alcohol.
Depending on the dirt, water solution of 80%vol can be effective.
4. Product Manual Touch Sensor Key with ITO (Transparent Electrode)
LC-60LE822E/LC-60LE822ERU
FPCB/ITO connecting tape
Pull tap of double-sided tape
FPCB
ITO
Pull tap of double-sided tape
Pull tap of protective sheet
i) Remove the touch sensor key from the front glass.
* When peeling the ITO section, check that there is no glue
residue on the front glass. If glue residue, dirt, fingerprints, etc. are found, wipe them off with anhydrous alcohol. Do not apply anhydrous alcohol to the double-sided tape on the metal part attaching to the glass.
4 – 8
LC-60LE822E/LC-60LE822ERU
ii) Adhere the ITO section to the front glass. (Use the positioning jig.)
Tape fixing the FPCB and ITO sections (Adhered by the supplier)
iii) Adhere the FPCB section to the front glass.
ζ-1. Lift the FPCB section to peel the release paper of the
* Be careful not to apply stress to the joint of FPCB and ITO.
ζ-2. Adhere the FPCB section to the front glass. * Be careful not to apply stress to the joint of FPCB and ITO.
ζ-3. Peel the tape fixing the FPCB and ITO sections.
iii-1. Peel the release paper of the double-sided tape
on the ITO section.
iii-2. Slowly adhere it from the end using a roller.
(Position the touch sensor using the jig.)
* Check that there are no bubbles in the ITO section
after adhered.
* Adhering error: r1.0mm
double-sided tape.
5. Attach the touch unit bonding procedure.
It includes peeling of the protective sheet.
How to mount the touch sensor
i) Adhere after positioned using the positioning jig.
ii) Peel the protective sheet by means of the pull tap for peeling the protective sheet.
iii) Adhere the FPCB to the glass. (Do not warp the FPCB if possible.)
Pull tap for peeling the protective sheet of the double-sided tape in the FPCB section.
Glass outline
4 – 9
iv) Peel the protective sheet of the OCA.
Lift the ITO section, then peel the protective sheet by about half by means of the pull tap.
* Peeling it completely reduces workability.
Check the order due to workability.
v) Contact the FPCB and joint end of the transparent electrode film with the glass.
* Grasp the opposite end. Note that the ITO is positioned by adhering.
*Note: Do not bend the PWB (FPCB section)
and sheet (ITO section).
LC-60LE822E/LC-60LE822ERU
vi) Adhere the transparent electrode completely.
Peel the front protective sheet.
If bubbles are found, press those portions with glass cleaning cloth, etc. to remove them as much as possible.
Pull tap for peeling the front protective sheet
• Use a rubber roller since pressure exerted by it removes bubbles easily. See photo below.
• For the TOUCH SENSOR KEY Unit positioning figure, see page 5-1.
4 – 10
LC-60LE822E/LC-60LE822ERU
— MEMO —
4 – 11
LC-60LE822E
CHAPTER 5. TOUCH SENSOR UNIT POSITIONING FIGURE
[1] TOUCH SENSOR UNIT POSITIONING FIGURE
LC-60LE822E/LC-60LE822ERU
Service Manual
TOUCH SENSOR KEY Unit
5 – 1
Loading...
+ 49 hidden pages