Sharp LC-19LE430E User manual

LC-19LE430E/UK, LC-22LE430E/UK, LC-26LE430E/UK, LC-32LE430E/UK
1
SERVICE MANUAL
No.
LED COLOUR TELEVISION
LC-19LE430E/UK
LC-22LE430E/UK
LC-26LE430E/UK
MODELS LC-32LE430E/UK
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.
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRE-
CAUTION .....................................................................2
Precautions for using lead-free solder ......……….........3
CHAPTER 1. OPERATION MANUAL
[1] SPECIFICATIONS ..................................................4
[2] OPERATION MANUAL ...........................................5
[3] DIMENSIONS ........................................................10
CHAPTER 2. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS ..........................11
CHAPTER 3. ADJUSTMENT PROCEDURE
[1] ADJUSTMENT PROCEDURE...............................31
[2] SERVICE MODE....................................................44
[3] SOFTWARE UPGRADE PROCEDURE................45
CHAPTER 4. TROUBLESHOOTING TABLE
[1] POWER BOARD TROUBLESHOOTING TABLE......46
[2] MAIN BOARD TROUBLESHOOTING TABLE...........50
CHAPTER 5. MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS...................................62
CONTENTS
CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM
[1] BLOCK DIAGRAM...................................................89
[2] POWER MANAGEMENT BLOCK DIAGRAM.........90
[3] WIRING DIAGRAM .................................................91
CHAPTER 7. PRINTED WIRING BOARD
[1] MAIN UNIT PRINTED WIRING BOARD .................95
[2] POWER UNIT PRINTED WIRING BOARD..............97
[3] KEY UNIT PRINTED WIRING BOARD ...................102
[4] IR UNIT PRINTED WIRING BOARD .......................103
CHAPTER 8. SCHEMATIC DIAGRAM
[1] MAIN SCHEMATIC DIAGRAM ..............................105
[2] POWER SCHEMATIC DIAGRAM...........................118
[3] KEY SCHEMATIC DIAGRAM..................................125
[4] IR SCHEMATIC DIAGRAM......................................126
CHAPTER 9. Parts Guide
[1] SPARE PARTS LIST...............................................128
[2] CABINET PARTS ...................................................188
[3] SUPPLIED ACCESSOORIES.................................196
[4] PACKING PARTS....................................................197
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig-
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SHARP CORPORATION

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SAFETY PRECAUTION
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.
42" F901 (T6.3AH/250V)
26"/32" F901 (T5AH/250V)
■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.
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sen-
sitivity 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.
DVM
AC SCALE
1.5k ohm
10W
0.15 µF
TEST PROBE
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.
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
CONNECT TO KNOWN
EARTH GROUND

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Precautions for using lead-free solder
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.

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CHAPTER 1. OPERATION MANUAL
[1] SPECIFICATIONS
Specification
Item 19" LCD COLOUR TV,
Model: LC-19LE430
22"LCD COLOUR TV,
Model: LC-22LE430
26″LCD COLOUR TV,
Model: LC-26LE430
32″LCD COLOUR TV,
Model: LC-32LE430
LCD screen size 19” diagonal 22” diagonal 26” diagonal 32” diagonal
Number of dots 3,147,264 dots
(1366 × 768 × 3 dots)
6,220,800 dots
(1920 × 1080 × 3dots)
3,147,264 dots
(1366 × 768 × 3 dots)
6,220,800 dots
(1920 × 1080 × 3dots)
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
Receiving
Channel
VHF/UHF ATV : IRA-E69, DVB-T : E5-E69
CATV S-band, S1–S41ch
TV-Tuning System Auto Preset 1599 ch, Auto Label, Auto Sort
STEREO/BILINGUAL NICAM/A2
Audio amplifier 3W × 2 3W × 2 5W × 2 10W × 2
Speaker 30 (H) × 117 (W) × 23
(D) mm
30 (H) × 117 (W) × 23
(D) mm
38 (H) × 164 (W) × 23
(D) mm
30 (H) × 164 (W) × 32
(D) mm
Rear
Antenna UHF/VHF 75
RS-232C D-sub 9 pin male connector
SCART SCART (AV input, Y/C input, RGB input, TV output )
PC IN D-sub 15 pin (AV input), Ø 3.5mm jack (Audio input)
Component Y/Pb(Cb)/Pr(Cr), RCA pin (L/R)
SPDIF OUT Digital audio output
AV OUT RCA pin (AV output)
HDMI 1 Digital video and audio input
Side
C. I. (Common Interface) EN50221, R206001, CI Plus specification
AV IN RCA pin (AV input)
USB Software update, multi-media play
Headphones Ø 3.5mm jack (Audio output)
HDMI 2 Digital video and audio input
OSD language
English, German, French, Italian, Dutch, Spanish, Greek, Portuguese, Swedish, Finnish, Russian, Polish,
Turkish, Hungarian, Czech, Slovak, Danish, Norwegian, Estonian, Latvian, Lithuanian, Slovenian, Bulgarian,
Croatian, Romanian, Serbian, Ukrainian, Gaelic, Belarussian.
Power Requirement AC 220–240 V, 50 Hz
Power Consumption 20W (Standby < 0.3W)
(Method IEC62087)
30W (Standby < 0.3W)
(Method IEC62087)
45W (Standby < 0.3W)
(Method IEC62087)
90W (Standby < 0.3W)
(Method IEC62087)
Weight 3.3kg (Without stand),
3.7kg (With stand)
4.0kg (Without stand),
4.5kg (With stand)
6.4kg (Without stand),
7.4kg (With stand)
8.8kg (Without stand),
10.1kg (With stand)
Operating temperature 0°C to + 40°C
• As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement
without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations
from these values in individual units.
NOTE
• Refer to the inside back cover for dimensional drawings.
• Audio cannot be output through the HDMI terminal.

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[2] OPERATION MANUAL
Remote control unit
(POWER)
Press to turn the LCD TV on or enter standby
mode.
(INPUT SOURCE)
Select an input source.
0-9 DIGIT BUTTONS
To select a TV channel directly.
EPG
Press this button to display electronic
programme guide when watching digital
channels.
PRE PR
To display the previous selected TV channel.
DTV/ATV
Press this button to switch between ATV and
DTV channels.
PR LIST
Press to display a list of channels. Then press
Red button to select the digital or analogue
channel list.(Only available when your input
source is TV).
ECO
Press this button to set the picture with less
brightness for saving energy.
Display programme information, if available.
(+/-)
Press to adjust the volume.
Press to toggle audio on and off. You can also
press (+/-) to restore the previous volume
level.
(Picture format)
Select picture format to Auto /Normal / Zoom
1/ Zoom 2 /Wide.
P ( )
Press to select the channel.
DUAL
Select MONO / STEREO / DUAL 1 / DUAL 2
for ATV channel. Select Audio language for
DTV channel.
AUDIO (ADJ)
Press to set the LCD TV to a predefined sound
setting.
Personal / Music / Speech
VIDEO (ADJ)
Press to set the LCD TV to a predefined picture
setting.
Personal / Standard / Vivid /
Movie / Eco
SLEEP
Press to turn the LCD TV off within an amount
of time. (10 ~ 120 minutes.)
Press ooepto navigate and confirm your
selection.
OK
Press to activate a setting.
MENU
Press to activate the LCD TV OSD.
EXIT
Press to exit the LCD TV OSD or return to the
previous layer.
R/G/Y/B (COLOUR BUTTON)
Press buttons to select the pictures with various
colours of text. Different channels display
different functions.
TELETEXT
Press this button to activate Teletext. Press
again to activate Teletext with TV.
Press again to turn off Teletext.
SUBTITLE
For DTV, press this button to toggle off /
between available subtitle languages.
For ATV, press this button to toggle
off / between available subtitle pages
in Teletext.
SIZE
Press this button to change the font size: Full
screen, Top half and Bottom half.
SUBPAGE
To select the subpage when the current page
contains subpage(s).
INDEX
Press this button to return to page 100 or the
index page; and then press 0 to 9. The teletext
page will be numbered and added to the page
you select or the secondary item.
HOLD
Press this button to stop the scrolling of pages.
The text decoder stops receiving data.
REVEAL
Reveal hidden information such as answers to a
quiz.
FREEZE
Press to freeze a moving image on the screen.
(Only available when your input source is TV).
Scart output signal will also be frozen when you
are watching digital channels.
In USB mode:
(You need to programme the setting with
remote control to control connected devices.)
Press to skip back to the previous title or track.
Press to stop playback.
Press to start/pause playback. Caution: Do not
freeze the video image for long periods of time.
You may damage the TV screen.
Press to skip forward to the next title or track.

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TV (Front view)
TV (Rear view)

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Preparation
Mount the TV base
1. Put the TV face down on a safe surface
that is covered by a soft and smooth cloth.
2. Adjust the TV stand to the bottom of the TV.
Please be sure the arrow heads are facing front.
3. Fasten the screws by using a cross-head screwdriver(Not supplied).
NOTE:
To detach the TV stand, perform the steps in reverse order.
Wall mounting
TV screen
size
( Inches)
VESAcompatible
wall bracket
(millimeters)
(W x H)
Screw type
19” 75 x 75 mm Metric 4 x 10 mm
22”100 x 100 mm Metric 4 x 10 mm
26”100 x 100 mm Metric 4 x 10 mm
32”200 x 100 mm Metric 4 x 10 mm
NOTE
• At the time of purchasing wall bracket, please check if there is enough space between the wall bracket and TV terminals for the terminal connection.
Installation of batteries
1. Insert two AAA batteries into Remote control. Make sure (+) and (-) are facing the proper
direction.
2. Replace the cover
NOTE
• If the remote control will not to be used for a long time, remove the batteries to avoid remote control
damage.
CAUTION:
Improper use of batteries can result in chemical leakage or explosion. Be sure to follow the instructions below.
• Do not mix batteries of different types. Different types of batteries have different characteristics.
• Do not mix old and new batteries. Mixing old and new batteries can shorten the life of new batteries or cause chemical leakage in old batteries.
• Remove batteries as soon as they are worn out. Chemicals that leak from batteries come in contact with skin can cause a rash. If you find any chemical
leakage, wipe thoroughly with a cloth.
• The batteries supplied with this product may have a shorter life expectancy due to storage conditions.
• If you will not be using the remote control unit for an extended period of time, remove batteries from it.
Note on disposing batteries:
The batteries provided contain no harmful materials such as cadmium, lead or mercury. Regulations concerning used batteries stipulate that batteries may
no longer be thrown out with the household rubbish. Deposit any used batteries free of charge into the designated collection containers set up at
commercial businesses.

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Using the remote control
Use the remote control unit by pointing it towards the remote control sensor. Objects
between the remote control unit and sensor may prevent proper operation.
Display the Menu Screen
Press MENU and the menu screen displays.
Select an item by the remote control
1. Press <>to select the desired menu.
2. Press ≤≥ to select / adjust the item to the
desired level. The setting on screen is applied
immediately.
3. Press EXIT to return to the previous layer .
Exit the Menu Screen
The operation will exit the menu screen if you press EXIT before it is complete.

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Appendix
troubleshooting
problem possible Solution
No picture 1. Connect power cord correctly.
2. Turn on power.
3. Connect signal cable correctly.
4. Press any button on the LCD TV.
Abnormal colours Connect signal cable correctly.
Twisted picture 1. Connect signal cable correctly.
2. Please use compatible signal.
Picture too dark Adjust brightness and contrast.
Audio only, no images 1. Please check if input signal is connected correctly.
2. TV-RF signal must not be lower than 50dB.
Picture only, no audio 1. Connect signal cable correctly.
2. Adjust volume to proper level.
3. Connect audio signal cable correctly.
4. TV-RF signal must not be lower than 50dB.
Cannot use remote control 1. Please change battery.
2. Turn off power for 10 seconds; and then restart power.
Cannot receive sufficient channels
through antenna Please use the Channel Scan function to increase the number of channels not included in memory.
No colour Please adjust the colour setup.
Blinking picture accompanied by ghost
image
1. Check the connection of antenna/signal cable.
2. Check if channel is in play mode.
3. Press signal source and change input mode.
Broken lines or segments Adjust antenna.
Keep the TV away from noise sources, such as automobiles, neon lights, and hair dryers.
Certain TV channels are blocked(Hope to
acquire some channels) Please use the Update Scan method to add the channels not included in memory.
Overlapping images or ghost images Please use multi-directional outdoor antenna.(If your TV is subject to the influence of nearby
mountains or buildings).
Cannot use a function If the item you choose turns gray, that item cannot be selected.
Cannot receive programmes Please use the Update Scan method to add the channels not included in memory.
Cautions regarding use in high and low temperature environments
• When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed. This
is not a malfunction, and the unit will recover when the temperature returns to normal.
• Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a
heater, as this may cause the cabinet to deform and the LCD panel to malfunction.
• Storage temperature: +5°C to +35°C.
Information on the software license for this product
Software composition
The software included in this product is comprised of various software components whose individual copyrights are held by SHARP or by third parties.
Software developed by SHARP and open source software
The copyrights for the software components and various relevant documents included with this product that were developed or written by SHARP are
owned by SHARP and are protected by the Copyright Act, international treaties, and other relevant laws. This product also makes use of freely
distributed software and software components whose copyrights are held by third parties. These include software components covered by a GNU
General Public License (hereafter GPL), a GNU Lesser General Public License (hereafter LGPL) or other license Agreement.
Acknowledgements
The following open source software components are included in this product:
•linuxkernel•modutils•glibc•zlib•libpng

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[3] DIMENSIONS
Dimension

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CHAPTER 2. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS(LC-19LE430E/UK)
1. Assy/Panel Removal
Notes: Please put your machine on soft material to avoid to scrape panel when you disassemble it.
Front view
Fig.1
Back view
Fig.2
Step 1. Remove the Base Assy and Base neck.
1. Remove the Base Assy as Fig.3.
Remove the 3 screws as Fig.3 and pull out the base as Fig.4
Fig.3

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Fig.4
2. Remove the 4 screws. Detach the Base neck as Fig.4.
Step 2. Remove the REAR COVER Assy.
1. Remove the 5 screws. Detach the REAR COVER as Fig.5.
Fig.5
Note: How to easy remove rear cabinet
Step 3. Remove the Main, Power and the Speakers.
Put left hand on the center of rear cabinet
Right hand fingers put under the machine rim
Press down
Pull up Pull up
Pull up Pull up

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Fig.6
1. Disconnect 3 cables and the LVDS cable and remove the 5 screws. Detach the Main board as Fig.7 and Fig.8.
Note: Please disconnect the LVDS cable from the panel firstly, then disconnect the LVDS from the main board.
If you disconnect the LVDS cable with the Main board firstly, maybe the panel connector will be damaged because of the short LVDS cable.
Fig.7 Fig.8
2. Disconnect 2 cables and remove the 4 screws. Detach the Power board as Fig.9.
Note: Push out the AC port from the Bracket, then disconnect the AC cable with the power board.
Caution: Do not pull back cover with AC Inlet rough when you dismantle it from cabinet, as this way cause it to be damaged and the wire to
loose from it.
Fig.9

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3. Release the speaker cable from its clamp, pull up and remove the speaker as Fig.10.
Fig.10
Step 4. Remove the Bracket and Bezel.
1. Remove the 9 screws. Detach the Bracket and panel as Fig.11.
Fig.11
2. Remove the panel from the bezel as Fig.12.
Fig.12
Step 5. Remove the IR and Key board.
1.Disconnect 1 cable. Detach the IR board as Fig.13.
Fig.13

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2. Disconnect 1 cable. Detach the Key board as Fig.14.
Fig.14
2. Set Re-assembly
To re-assemble the whole set, execute all processes in reverse order.
Notes:
a. While re-assembling, make sure that all cables are placed and connected in their original position.
b. Pay special attention not to damage the EMC foams at the SSB shielding. Check that EMC foams are put
correctly on their places.

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REMOVING OF MAJOR PARTS(LC-22LE430E/UK)
1. Assy/Panel Removal
Notes: Please put your machine on soft material to avoid to scrape panel when you disassemble it.
Front view
Fig.1
Back view
Fig.2
Step 1. Remove the Base Assy and Base neck.
1. Remove the Base Assy as Fig.3.
Remove the 3 screws as Fig.3 and pull out the base as Fig.4
Fig.3
2. Remove the 4 screws. Detach the Base neck as Fig.4.

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Fig.4
Step 2. Remove the REAR COVER Assy.
1. Remove the 5 screws. Detach the REAR COVER as Fig.5.
Fig.5
Note: How to easy remove rear cabinet
Step 3. Remove the Main, Power and the Speakers.
Put left hand on the center of rear cabinet
Right hand fingers put under the machine rim
Press down
Pull up Pull up
Pull up Pull up

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Fig.6
1. Disconnect 4 cables and remove the 5 screws. Detach the Main board as Fig.7 and Fig.8.
Note: Please disconnect the LVDS cable from the panel firstly, then disconnect the LVDS from the main board.
If you disconnect the LVDS cable with the Main board firstly, maybe the panel connector will be damaged because of the short LVDS cable.
Fig.7 Fig.8
2. Disconnect 2 cables and remove the 4 screws. Detach the Power board as Fig.9.
Note: Push out the AC port from the Bracket, then disconnect the AC cable with the power board.
Caution: Do not pull back cover with AC Inlet rough when you dismantle it from cabinet, as this way cause it to be damaged and the wire to
loose from it.
Fig.9

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3. Release the speaker cable from its clamp, pull up and remove the speaker as Fig.10.
Fig.10
Step 4. Remove the Bracket and Bezel.
1. Remove the 11 screws. Detach the Bracket and panel as Fig.11.
Fig.11
2. Remove the panel from the bezel as Fig.12.
Fig.12
Step 5. Remove the IR and Key board.
1. Disconnect 1 cable. Detach the IR board as Fig.16.
Fig.16
2. Disconnect 1 cable. Detach the Key board as Fig.17.
Fig.17

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2. Set Re-assembly
To re-assemble the whole set, execute all processes in reverse order.
Notes:
a. While re-assembling, make sure that all cables are placed and connected in their original position.
b. Pay special attention not to damage the EMC foams at the SSB shielding. Check that EMC foams are put
correctly on their places.