Sanyo LCE-22A100F User manual

SERVICE MANUAL
PRODUCT CODE No.
REFERENCE No.:SM0915183
1 682 351 24: NTSC-M
ATSC
FILE NO.
PRODUCT CODE No.
LCE-22A100F
High Definition LED-LCD TV
TV
VIDEO
MENU EXIT
GUIDE
RECALL
INFO
MUTE
ZOOM SLEEP FAVORITE
CH-LIST
PICTURE
CH VOL
HDMI
AUDIO MTS/SAP
COMP VGA
CCD
INPUT
1
4
7
2
5
8
0
3
6
9
ENTER
.

CONTENTS
Safety precautions………………………………………………………………………..…
Alignment instructions …………………………….…….…………………………………
Software upgrade instructions..................................................................................
Working principle analysis……………………………….………….…………...............
Block diagram…………………………………..………………………………….…………
IC block diagram………………………………………………………………………..……
Wiring diagram …………………………………………………………………………….
Troubleshooting flow chart ………………………………………………………………..……
Schematic diagram…………………………………………………………………………
APPENDIX-A: Assembly list
APPENDIX-B: Exploded View
3
5
13
23
24
25
40
41
44
Assembling the Stand
WALL MOUNTING INSTRUCTIONS

Safety precautions
1. Instructions
Be sure to switch off the power supply before replacing or welding any components or
inserting/plugging in connection wire. Anti static measures must be taken (throughout the entire
production process!):
a) Do not touch here and there by hand at will;
b) Be sure to use anti static electric iron;
c) It’s necessary for the welder to wear anti static gloves.
Please refer to the part list before replacing components that have special safety requirements.
Do not replace with different components with different specs and type at will.
2. LCD servicing precautions
2.1 Screens are different from one model to another and therefore not interchangeable. Be sure to
use the screen of the original model for replacement.
2.2 The operation voltage of LCD screen is 700-825V. Be sure to take proper measures in
protecting yourself and the machine when testing the system in the course of normal operation or
right after the power is switched off. Please do not touch the circuit or the metal part of the module
that is in operation mode. Relevant operation is possible only one minute after the power is
switched off.
2.3 Do not use any adapter that is not identical with the TV set. Otherwise it will cause fire or
damage to the set.
2.4 Never operate the set or do any installation work in bad environment such as wet bathroom,
laundry, kitchen, or nearby fire source, heating equipment and devices or exposure to sunlight etc.
Otherwise bad effect will result.
2.5 If any foreign substance such as water, liquid, metal slices or other matters happens to fall into
the module, be sure to cut the power off immediately and do not move anything on the module lest
it should cause fire or electric shock due to contact with the high voltage or short circuit.
2.6 Should there be smoke, abnormal smell or sound from the module, please shut the power off
at once. Likewise, if the screen is not working after the power is on or in the course of operation,
the power must be cut off immediately and no more operation is allowed under the same
condition.
2.7 Do not pull out or plug in the connection wire when the module is in operation or just after the
power is off because in this case relatively high voltage still remains in the capacitor of the driving
circuit. Please wait at least one minute before the pulling out or plugging in the connection wire.
2.8 When operating or installing LCD please don’t subject the LCD components to bending,
twisting or extrusion, collision lest mishap should result.
2.9 As most of the circuitry in LCD TV set is composed of CMOS integrated circuits, it’s necessary
to pay attention to anti statics. Before servicing LCD TV make sure to take anti static measure and
ensure full grounding for all the parts that have to be grounded.
2.10 There are lots of connection wires between parts behind the LCD screen. When servicing or
moving the set please take care not to touch or scratch them. Once they are damaged the screen
Attention: This service manual is only for service personnel to take reference with. Before
servicing please read the following points carefully.

would be unable to work and no way to get it repaired.
If the connection wires, connections or components fixed by the thermotropic glue need to
disengage when service, please soak the thermotropic glue into the alcohol and then pull them
out in case of dagmage.
2.11 Special care must be taken in transporting or handling it. Exquisite shock vibration may lead
to breakage of screen glass or damage to driving circuit. Therefore it must be packed in a strong
case before the transportation or handling.
2.12 For the storage make sure to put it in a place where the environment can be controlled so as
to prevent the temperature and humidity from exceeding the limits as specified in the manual. For
prolonged storage, it is necessary to house it in an anti-moisture bag and put them altogether in
one place. The ambient conditions are tabulated as follows:
Temperature Operation range 0 ~ +50 oC
Storage range -20 ~ +60 oC
Humidity Operation range 20% ~ 85%
Storage range 10% ~ 90%
2.13 Display of a fixed picture for a long time may cause a permanent after-image on the screen,
as commonly called “ghost shadow”. The degree of the after-image varies with the maker of LCD
screen. This phenomenon doesn’t represent failure. This “ghost shadow” may remain in the
picture for a period of time (several minutes). But when operating it please avoid displaying still
picture in high brightness for a long time.
3. Installation precautions
3.1 The front panel of LCD screen is made of glass. When installing it please make sure to put it in
place.
3.2 For service or installation it’s necessary to use specified screw lest it should damage the
screen.
3.3 Be sure to take anti dust measures. Any foreign substance that happens to fall down between
the screen and the glass will affect the receiving and viewing effect
3.4 When dismantling or mounting the protective partition plate that is used for anti vibration and
insulation please take care to keep it in intactness so as to avoid hidden trouble.
3.5 Be sure to protect the cabinet from damage or scratch during service, dismantling or
mounting.

Alignment instructions
1 Safety instructions
1.1 Power supply must be cut off before replacing / welding any component or inserting / pulling out
connective wire.
1.2 Anti-static measures
(Note: Anti-static measures must be done during the whole production process !)
a）Touching IC at will is forbidden;
b）Use anti-static electrical iron;
c）Welder must wear anti-static gloves at work.
1.3 Refer to the part list when replacing any component with special safety regulation, it is
prohibited to replace it with other component with different specification and type at will.
1.4 Power voltage must be 120 V±10%, otherwise power voltage 220 V will burn out power board.
2 Test equipment
VG848（YPbPr、VGA signal generator）
VG849( HDMI signal generator)
CA210（color analyzer）
3 Alignment procedure
3.1 Power voltage test
According to wiring diagram “92XXMAXX01JL” of relevant model, connect main board assembly,
power board assembly and IR assembly correctly; supply with power, press key “standby” to turn on
the TV.
3.1.1 For model LC-26MA42 and LC-32/40MA52
a) Test voltage of socket X301 each pin on main board, please refer to Table 1 for voltage:
Table 1 Voltage of socket X301each pin
X301 Pin 1、2 3、4 5、6 7、8 9 10 11 12 13
Min.(V) 22.8 0 11.3 0 4.85 4.85 4.85 3.25 4.85
Typical
value (V) 24.0 0 12.0 0 5.00 5.00 5.00 3.30 5.00
Max.(V) 25.2 0 12.7 0 5.35 5.35 5.35 3.35 5.35
b) Test voltage of each pin of backlight socket on power board, please refer to Table 2 for voltage:
Table 2 Voltage of each pin of backlight socket
X503 Pin 1～5 6～10 11 12
Min.(V) 23.8 0 3.25 4.85
Typical value (V) 24.0 0 3.30 5.0
Max.(V) 25.2 0 3.35 5.35

3.1.2 For model LE-22/32/42MA51
a) Test voltage of socket X301 each pin on main board, please refer to Table 3 for voltage:
Table 3 Voltage of socket X301each pin
X301 Pin 1 2 3 4 5
6、7 8、9 10、11 12、13
Min.(V) 4.85 3.25 4.85 4.85 4.85 0 11.3 0 22.8
Typical
value (V) 5.00 3.30 5.00 5.00 5.00 0 12.0 0 24.0
Max.(V) 5.35 3.35 5.35 5.35 5.35 0 12.7 0 25.2
b) Test voltage of each pin of backlight socket on power board, please refer to Table 4 for voltage:
Table 4 Voltage of each pin of backlight socket
X503 Pin 1～5 6～10 11 12
Min.(V) 23.8 0 3.25 4.85
Typical value (V) 24.0 0 3.30 5.0
Max.(V) 25.2 0 3.35 5.35

3.2 Alignment flow chart shown as Fig.1:
Fig. 1 Alignment flow chart
Check if DDC , FLASH has been written?
Produce main board on line
General assembly and combination alignment (Check if 120V is normal?)
White balance alignment
Connect to central signal source, check if functions of TV, such as omitted programs, analog
parameter control, etc., are normal? Check if output of earphones and speakers are normal?
Input HD signal(mode), check YPbPr functions
Input VGA signal, check if the display is normal? Check all functions,
such as analog parameter control, H/V center, etc.
Ex-factory preset
Check accessories, packing
Input AV signal, check AV functions
Input HDMI signal, check if the display is normal? Check all functions,
such as analog parameter control, H/V center, etc.
Insert U disk, check if JPEG pictures play normally?

4 Alignment instructions
4.1 The whole unit alignment
4.1.1 According to wiring diagram “92XXMAXX01JL”, connect main board, power board, key board
and IR board correctly; supply with the power ～120 V and turn on the TV, check if the
display is normal.
4.1.2 Using method of factory menu
a) First press key “INPUT”, then press keys “2、5、8、0” in turn to enter into initial factory menu;
b) Press keys “” and “” to move cursor to each adjustment page of initial factory menu, then
press key “ENTER” to enter into relevant adjustment menu;
c) Press keys “” and “” to move cursor upwards or downwards within one adjustment page;
d) Move cursor to one adjustment item, then press keys “” and “” to begin its adjustment;
e) Press key “MENU” to exit adjustment menu to initial factory menu;
f) Press key “EXIT” to exit factory menu in any case;
g) Factory menu item Aging Mode: “On” factory aging mode
press any key on key board to exit aging mode;
h) Sub-item Power mode of factory menu item Other settings:
Power mode:“Power On”turn on the TV directly when supplying with power
“Standby” the TV will be in standby state after supplying with power, then
press key “Standby” to turn on the TV
“Memory” the TV will be in the last turn-off state after turn-on again
4.2 White balance adjustment
4.2.1 Preparation
Before white balance adjustment, the TV set should be working above 30 minutes to be in a
stabler state; Use BBY channel of Color Analyzer CA210 for white balance adjustment; Only color
temperature “Normal”need adjustment for the model; to ensure color temperature “Cool”and
“Warm”can meet the requirements of BESTBUY, make sure chromatic coordinates of bright
scales are (△X≤±5、△Y≤±5) and chromatic coordinates of dark scales are (△X≤±5、△Y≤±5); please
refer to Table 5 for color temperature of each model:
Table 5 Color temperature of each model
Model Cool Normal Warm
LC-26/32/40MAXX 10000K（280、288）9300K（285、293）6500K（313、329）
Following white balance adjustment of LC-26MA42 are instructed as an example; please refer to
Table 7 for corresponding color temperature of other models.
4.2.2 Four modes of white balance data adjustment
4.2.2.1 ATV channel adjustment（AV、S-VIDEO has the same white balance data with ATV）
Set AIR state in TV mode, input signal 21 channel, the picture will be 11 grey-step; enter into
factory menu page “Color Temp”, first set “Color Temperature”as “Normal”, fix item
“G-Gain”, adjust items “R-Gain、B-Gain”to make chromatic coordinates of the 9th step as
（285、293）; fix item “G-Offset”, adjust items “R-Offset、B-Offset”to make chromatic
coordinates of the 3rd step as （285、293）; adjust items “R-Gain、B-Gain”and “R-Offset、
B-Offset”repeatedly until chromatic coordinates of both grey steps are all （285、293）; then press
key “MENU”to exit to the upper factory menu.
Check if color temperature “Cool”and “Warm”meet the requirements, if not, adjust items
“R-Gain、B-Gain、R-Offset、B-Offset”to make them.

4.2.2.2 DTV channel adjustment（HDMI has the same white balance data with DTV）
Set AIR state in TV mode, input signal 26 channel, the picture will be 11 grey-step; enter into
factory menu page “Color Temp”, first set “Color Temperature”as “Normal”, fix item
“G-Gain”, adjust items “R-Gain、B-Gain”to make chromatic coordinates of the 9th step as
（285、293）; fix item “G-Offset”, adjust items “R-Offset、B-Offset”to make chromatic
coordinates of the 3rd step as （285、293）; adjust items “R-Gain、B-Gain”and “R-Offset、
B-Offset”repeatedly until chromatic coordinates of both grey steps are all （285、293）; then press
key “MENU”to exit to the upper factory menu.
Check if color temperature “Cool”and “Warm”meet the requirements, if not, adjust items
“R-Gain、B-Gain、R-Offset、B-Offset”to make them.
4.2.2.3 YPbPr channel adjustment
First perform ADC calibration: input 480i/60 Hz signal with format of 75% color-bar plus
grey-step （VG848 Timing : 968，PAT : 918）, enter into factory menu “ADC Setting” to make an “Auto
Color ”adjustment, input 1080i/60 Hz signal with format of 75% color-bar plus grey-step （VG848
Timing : 972，PAT : 918）, enter into factory menu “ADC Setting” to make an “Auto Color ”adjustment;
Then perform white balance adjustment: input 1920×1080i/60 Hz signal with format of 8
grey-step signal from YPbPr channel of VG848, enter into factory menu page “Color Temp”, first set
item “Color Temperature” as “Normal”, fix item “G-Gain”, adjust items “R-Gain、B-Gain” to make
chromatic coordinates of the 7th as （285、293）; fix item “G-Offset”, adjust items “R-Offset、B-Offset”
to make chromatic coordinates of the 2nd as （285、293）; adjust items “R-Gain、B-Gain”and
“R-Offset、B-Offset”repeatedly until chromatic coordinates of both grey steps are all （285、293）;
then press key “MENU”to exit to the upper factory menu.
Check if color temperature “Cool”and “Warm”meet the requirements, if not, adjust items
“R-Gain、B-Gain、R-Offset、B-Offset”to make them.
4.2.2.4 VGA channel adjustment
First perform ADC calibration: input VESA 800×600/60 Hz signal with format of square pattern
（VG848 Timing : 854，PAT : 914）, check if the picture displays fully, if not, enter into user menu
“Settings→Computer Settings” to make an “Auto Adjust” adjustment to make the picture display fully;
then enter into factory menu “ADC Setting” to make an “Auto Color” adjustment;
Then perform white balance adjustment: input 800×600/60 Hz signal with format of 8 grey-step
signal from VGA channel of VG848, enter into factory menu page “Color Temp”, first set item “Color
Temperature” as “Normal”, fix item “G-Gain”, adjust items “R-Gain、B-Gain” to make chromatic
coordinates of the 7th as （285、293）; fix item “G-Offset”, adjust items “R-Offset、B-Offset” to make
chromatic coordinates of the 2nd as（285、293）; adjust items “R-Gain、B-Gain”and “R-Offset、
B-Offset”repeatedly until chromatic coordinates of both grey steps are all （285、293）; then press
key “MENU”to exit to the upper factory menu.
Check if color temperature “Cool”and “Warm”meet the requirements, if not, adjust items
“R-Gain、B-Gain、R-Offset、B-Offset”to make them.
4.3 Auto white balance adjustment
4.3.1 Pre-calibration of ADC
Input 480i/60 Hz signal with format of 75% color-bar plus grey-step （VG848 Timing : 968，PAT :
918）, enter into factory menu “ADC Setting” to make an “Auto Color ”adjustment, input 1080i/60 Hz
signal with format of 75% color-bar plus grey-step （VG848 Timing : 972，PAT : 918）, enter into
factory menu “ADC Setting” to make an “Auto Color ”adjustment;
Input VESA 800×600/60 Hz signal with format of square pattern （VG848 Timing : 854，PAT :

914）, check if the picture displays fully, if not, enter into user menu “Settings→Computer Settings” to
make an “Auto Adjust” adjustment to make the picture display fully; then enter into factory menu
“ADC Setting” to make an “Auto Color” adjustment;
4.3.2 White balance adjustment
Before white balance adjustment, the TV set should be working above 30 minutes to be in a
stabler state; connect both USB ports of CA210 and PC with data cable; connect VG848 and TV to
COM port or virtual COM port of PC respectively (default connection: VG848 to COM5, TV to COM1,
which can be modified and saved by entering into administrator interface with password “xoceco”);
please output signal from VG848 to channel AV、YPbPr、VGA or HDMI1 of TV set (connected
channels of various models may be different ).
Open file “White_Balance.exe”, load config file “AdjustConfig.txt”, then connect CA210，
VG848 and TV respectively according to instructions on the interface;
Note: set the probe to the position “0-CAL” before connecting CA210, then press “Connect
CA210” until a prompt “Connection and calibration of CA210 are normal!” appears at the left-down
location, now set probe back to the position “MEAS”; use BBY channel of CA210, or enter into
administrator interface with password “xoceco” to modify and save different apparatus setup if
necessary.
In the end, press “Begin auto white balance adjustment”(note: auto white balance adjustment
must not begin from VGA channel ), auto white balance adjustment will be completed when a prompt
“Successful adjustment”appears.
5 Performance check
5.1 TV performance
Input central signal to RF port, first enter into menu “Channel”, then perform “Auto program scan”,
check if there is any omitted channel, the output of speakers is normal, the picture is normal,
especially pay attention that all signals have been found must include signals NTSC and ATSC
5.2 AV ports
Input AV signal to AV ports, check if the picture and the sound are normal.
5.3 YPbPr/YCbCr ports
Input YUV signal from VG848 signal generator with YUV formats listed as Table 6 respectively,
check if the display and the sound are normal.
Table 6 YUV signal formats
No. Definition H-Fre. (kHz) V-Fre. (Hz) Dot-Pulse Fre.
(MHz) Remark
1 720×[email protected]/60 Hz 15.734 59.94/60 13.5 480i(59.94/60p)
2 720×480p@59.94/60
Hz
31.469 59.94/60 27.00 480p(59.94/60p)
3 1280×720p@59.94/60
Hz
44.96 59.94 74.18 720p(59.94/60p)
4 1920×1080i@59.94/60 Hz 33.75 59.94 74.25 1080i(59.94/60i)
5 1920×1080p@23.98/24
Hz
27.00 23.98/24 74.25 1080p(23.98/24p)
6 1920×1080p@59.94/60
Hz
67.50 60.00 148.50 1080p(59.94/60p)

5.4 VGA ports
Input VGA signal from VG848 signal generator with VGA formats listed as Table 7 respectively,
check if the display and the sound are normal, if not, enter into user menu “Settings→Computer
Settings”, perform “Auto Adjust”to make an auto calibration.
Table 7 VGA signal formats
No. Definition H-Fre. (kHz) V-Fre. (Hz) Dot-Pulse Fre.
(MHz) Remark
1 720×400@70 Hz 31.47 70.08 28.32 VGA-T
2 640×480@60 Hz 31.50 60.00 25.18 VGA
3 640×480@72 Hz 37.90 72.00 31.50 VESA
4 640×480@75 Hz 37.50 75.00 31.50 VESA
5 800×600@56 Hz 35.16 56.25 36.00 VESA
6 800×600@60 Hz 37.90 60.00 40.00 VESA Guidelines
7 800×600@75 Hz 48.08 75.00 50.00 VESA
8 1024×768@60 Hz 48.40 60.00 65.00 VESA Guidelines
9 1024×768@70 Hz 56.50 70.00 75.00 VESA
10 1024×768@75 Hz 60.00 75.00 78.75 VESA
11 1280×768@75 Hz 60.30 75.00 102.25 VESA
12 1360×768@60 Hz 47.70 60.00 85.5 VESA
13 1280×1024@60 Hz 64.00 60.00 108.0 VESA (FHD panel)
14 1280×1024@75 Hz 80.00 75.00 135.0 VESA (FHD panel)
15 1920×1080@60 Hz 67.50 60.00 148.5 CEA-861(FHD panel)
5.5 HDMI ports
Input HDMIsignal from VG849 signal generator with signal formats listed as Table 6 and Table 7
respectively, check if the display and the sound are normal.
5.6 USB ports
Insert U disk, check if JPEG pictures display normally.
5.7 Audio output ports
Check earphone jacks, check if the sound of AUDIO OUT ports is normal.
6 User menu preset before shipment
Enter into user menu, select item “Shipment” , the TV set will perform preset automatically before
shipment; the step must be done after factory alignments have been completed; main operations by
“Shipment” are described as below:
1）Clear up all programs information;
2）Clear up V-CHIP information;
3）Default analog parameters setup for all sources;
4）Set “Power mode” as “Standby”;
5）Activate menu “Setup Wizard”.
Note: After user menu preset has been completed, it is necessary to exit factory menu, turn off the
TV set to standby state, then cut off the power supply.

7 Factory software writing instructions are described as Table 8
Table 8 Factory software writing instructions
Loc. Part No. Part Type Software
Function Written Method Remarks
N101 5272532006 EN25Q32 Main
software
Use writing instrument like ALL11, etc.,
writing-protection is needed, please
refer to the below note
For all models
N101 5272532006 EN25Q32 HDCP
KEY Use ISP to upgrade software on line For all models
Note: Writing-protection method is described as below:
Enter into interface “AUTO” of ALL-100 writing software, tick off item “Config” that must be
selected during writing process; Within interface “AUTO”, press item “Config Setting” to set options
“Protect” as “All Protect” and “SRWD” as “Enable”. Be sure to set writing-protection again after
re-performing ALL-100 writing software every time.

Software upgrade instruction
Software upgrade instructions (USB)
Method 1:
1. Cut off the power supply.
2. Insert a U disk to the USB port of the TV set, copy upgrade file “fw.spi”to the U disk,
the file “fw.spi”must be saved in the root directory of the U disk and make sure the file
“fw.spi”is the only one in the U disk.
3. Keep pressing any one of keys “menu, vol+, vol-, ch+ or ch-” of the TV set.
4. Power on the TV set.
5. It is in the process of upgrade if the led indicator light is twinkling; the TV set will restart
automatically after upgrade has been completed.
6. Upgrade is failed if the led indicator light does not twinkle; then replace U disk, repeat
upgrade processes from step 1.
7. After successful upgrade, press key “input,2,5,8,0” to enter into factory menu shown
as below figure:
8. Select item “Shipment”, press key “Enter”, a dialog will be shown as below:
9. Select button “Yes”, press key “Enter”, a dialog will be shown as below, then press key
“power” to power off the TV set.

Method 2:
1. Copy upgrade file “fw.spi”to a U disk, the file “fw.spi”must be saved in the root
directory of the U disk and make sure the file “fw.spi”is the only one in the U disk.
2. Plug in firmly to be sure to power on the TV set normally, then insert the U disk into
USB port of the TV set.
3．First press key “INPUT”until menu “SOURCE INPUT” appears, then press keys “2”
“5”，“8”，“0” in turn to enter into factory menu.
4. Press key “▲” or “▼” on remote control to switch to option “SW Upadate”, press key
“ENTER” to enter into upgrade interface.

5. Switch to option ”OK”, press key “ENTER” to begin upgrade process
6. After upgrade has been completed, press key “ENTER” first until the TV set restarts
and a prompt “SANYO LOGO” appears, now pull out the U disk and upgrade
succeed!
7. After successful upgrade, press key “input,2,5,8,0” to enter into factory menu shown
as below figure:

8. Select item “Shipment”, press key “Enter”, a dialog will be shown as below:
9. Select button “Yes”, press key “Enter”, a dialog will be shown as below, then press key
“power” to power off the TV set.
Method 3:
1. Copy upgrade file “fw.spi” to a U disk, the file “fw.spi” must be saved in the root
directory of the U disk and make sure the file “fw.spi” is the only one in the U disk.
2. Insert the U disk into USB port of the TV set.
3. Plug in firmly to be sure to power on the TV set normally,
4. Press key “power”on remote control to turn on the TV set.
5. Upgrade interface as below will appear in 5 seconds, switch to option “OK”, press key
“ENTER” to begin upgrade process.

6. After upgrade has been completed, press key “ENTER” first until the TV set restarts
and a prompt “SANYO LOGO” appears, now pull out the U disk and upgrade
succeed!
7. After successful upgrade, press key “input,2,5,8,0” to enter into factory menu shown
as below figure:

8. Select item “Shipment”, press key “Enter”, a dialog will be shown as below:
9. Select button “Yes”, press key “Enter”, a dialog will be shown as below, then press key
“power” to power off the TV set.

Software upgrade instructions (super interface)
1．Copy upgrade file “fw.spi”to a U disk, the file “fw.spi”must be saved in the root
directory of the U disk and make sure the file “fw.spi”is the only one in the U disk.
2. Plug in firmly to be sure to power on the TV set normally, then insert the U disk into
USB port of the TV set.
3．Connect one port of upgrade device to serial port of PC with cable RS232 and the
other port to port VGA of the TV set with cable VGA, then build a new super interface
on PC and set port COM and Baud rate as “115200”, open the super interface.
4．Keep pressing key “ESC”, power on the TV set, there will be information printed on
the super interface, input command “usb fl all fw.sp”to look for the file in the U disk
automatically.

5. Software will begin upgrade automatically after the file has been found, writing
process will be completed when a prompt “REALTEK” appears again.
6. Cut off power supply and then power on the TV set again, check if upgrade process
has been completed, if not, repeat above procedures until upgrade succeeds.