Sanyo LCD-50XR12F – Service Mode – Software update – Service adjustments – SMPS and Back-light inverter schematic
How to enter service mode – how to update
the firmware – Power Supply and Back Light inverter Circuit Diagram -
Service adjustments – ADC Calibration - Sanyo LCD-50XR12F PAL-B/G NTSC(AV) (Australia)
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.
Factory
menu instruction
a) Press key “INPUT”, then press digital keys “2 5 8 0” in turn to enter into primary factory menu.
b) Press keys “▲” and “▼” to move cursor to each page of primary factory menu, then press key “OK” to enter into submenu page.
c) Press keys “▲” and “▼” to move cursor upward or downward within any one page.
d) Press keys “◄” and “►” to do adjustment when move cursor to one item.
e) Press key “MENU” to exit submenu page to the superior factory menu.
f) Press key “EXIT” to exit factory menu in any case;
g) Press key “OK” to enter the inferior factory submenu.
a) Press key “INPUT”, then press digital keys “2 5 8 0” in turn to enter into primary factory menu.
b) Press keys “▲” and “▼” to move cursor to each page of primary factory menu, then press key “OK” to enter into submenu page.
c) Press keys “▲” and “▼” to move cursor upward or downward within any one page.
d) Press keys “◄” and “►” to do adjustment when move cursor to one item.
e) Press key “MENU” to exit submenu page to the superior factory menu.
f) Press key “EXIT” to exit factory menu in any case;
g) Press key “OK” to enter the inferior factory submenu.
h) Factory menu item: Aging Mode to
be used for aging the TV set; red, green blue and white full screen picture
displays in turn; default setting is OFF.
i)Factory menu item: ADC ADJUST to
be used for ADC calibration for VGA and Component.
j) Factory menu item: Fac. Channel Preset to
be used for factory channel presetting; central signal digital frequency value
for Australia program is set as CH28(529.5 MHz) and CH33(564.5 MHz); original
digital program presetting could not change if central signal setting has any
modification, so please search for digital program manually by performing item DTV of
menu Channel.
k) Factory menu item: Color Temp. to be used for white balance adjustment;
l) Factory menu item: Store Setting Init.
m) Factory menu item: USB SW Update to be used for software updating from USB port; when U disk with updating software is inserted into USB port, choose the item to perform updating process.
n) Factory menu item: Other Settings include settings of EEPROM Init, MEMC Update, Power mode, MST DEBUG, ISP MODE, Backlight, SSC, NONLINEAR, Video Quality, Audio Quality, Light Sensor, Overscan, etc.; no need any adjustment normally.
k) Factory menu item: Color Temp. to be used for white balance adjustment;
l) Factory menu item: Store Setting Init.
m) Factory menu item: USB SW Update to be used for software updating from USB port; when U disk with updating software is inserted into USB port, choose the item to perform updating process.
n) Factory menu item: Other Settings include settings of EEPROM Init, MEMC Update, Power mode, MST DEBUG, ISP MODE, Backlight, SSC, NONLINEAR, Video Quality, Audio Quality, Light Sensor, Overscan, etc.; no need any adjustment normally.
Power mode: to be used for setting power-on mode;
Standby: TV set will be in stand-by mode after power-on;
Mem: TV set will keep the last power-off mode after power-on again;
Force On: TV set will work automatically after power-on;
Unless specified by customer, Standby mode is default and kept by adjustment;
Standby: TV set will be in stand-by mode after power-on;
Mem: TV set will keep the last power-off mode after power-on again;
Force On: TV set will work automatically after power-on;
Unless specified by customer, Standby mode is default and kept by adjustment;
o)
Factory menu item: Shipment to be used for initializing user data; Success flag will display
after initialization, then press KEY POWER only to power off the TV set.
p) Please perform EEPROM Init before adjustment for the first time if software has been upgraded or data have been kept in EEPROM.
p) Please perform EEPROM Init before adjustment for the first time if software has been upgraded or data have been kept in EEPROM.
ADC
calibration for D-SUB channel
a) Switch to D-SUB channel;
b) Press key “INPUT”, then press digital keys “2,5,8,0” in turn to enter into primary factory menu;
c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into the inferior submenu;
d) Input D-SUB signal (VG-849 Timing:856 (1024×768/60 Hz), Pattern:914 Chess Pattern); move cursor to item “MODE”, press keys “▲” and “▼” to choose item “RGB”, then move cursor to item “AUTO ADC” and press key “OK” to perform auto adjustment until prompt “success” displays.
a) Switch to D-SUB channel;
b) Press key “INPUT”, then press digital keys “2,5,8,0” in turn to enter into primary factory menu;
c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into the inferior submenu;
d) Input D-SUB signal (VG-849 Timing:856 (1024×768/60 Hz), Pattern:914 Chess Pattern); move cursor to item “MODE”, press keys “▲” and “▼” to choose item “RGB”, then move cursor to item “AUTO ADC” and press key “OK” to perform auto adjustment until prompt “success” displays.
ADC
calibration for Component channel
a) Switch to Component channel;
b) Press key “INPUT”, then press digital keys “2,5,8,0” in turn to enter into primary factory menu;
c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into the inferior submenu;
d) Input Component signal (VG-849 Timing:972(1080i), Pattern:918 100% color bar); move cursor to item “MODE”, press keys “▲” and “▼” to choose item “YPbPr”, then move cursor to item “AUTO ADC” and press key “OK” to perform auto adjustment until prompt “success”
a) Switch to Component channel;
b) Press key “INPUT”, then press digital keys “2,5,8,0” in turn to enter into primary factory menu;
c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into the inferior submenu;
d) Input Component signal (VG-849 Timing:972(1080i), Pattern:918 100% color bar); move cursor to item “MODE”, press keys “▲” and “▼” to choose item “YPbPr”, then move cursor to item “AUTO ADC” and press key “OK” to perform auto adjustment until prompt “success”
displays.
White
balance adjustment
Unless specified by customer, default settings of COOL color temperature is 12000K and chromatic coordinates is (272,278); referenced settings of Normal color temperature is 9300K and chromatic coordinates is (285,293); referenced settings of Warm color temperature is 6500K and chromatic coordinates is (313,329);
Default setting is Normal.
Unless specified by customer, default settings of COOL color temperature is 12000K and chromatic coordinates is (272,278); referenced settings of Normal color temperature is 9300K and chromatic coordinates is (285,293); referenced settings of Warm color temperature is 6500K and chromatic coordinates is (313,329);
Default setting is Normal.
Adjustment
procedures
The TV set should be working above 30 minutes to be in a stabler state before adjustment. Use CA-210 BBY channel to adjust white balance;
The TV set should be working above 30 minutes to be in a stabler state before adjustment. Use CA-210 BBY channel to adjust white balance;
Switch
to HDMI channel;
b) Press key “INPUT”, then press digital keys “2,5,8,0” in turn to enter into primary factory menu;
c) Move cursor to item “W/B ADJUST” and press key “OK” to enter into the inferior submenu;
d) Input HDMI signal (VG-849 Timing: 972(1080i)， Pattern: 921 16 step Gray); move cursor to item “MODE”, press keys “▲” and “▼” to choose item “HDMI”, then move cursor to item “TEMPERTURE” and press keys “▲” and “▼” to choose “NORMAL”;
e) Fix “G GAIN”, adjust “R GAIN, B GAIN” to set 14th chromatic coordinates as (285,293);
f) Fix “G OFFSET”, adjust “R OFFSET、 B OFFSET” to set 4th chromatic coordinates as (285,293).
b) Press key “INPUT”, then press digital keys “2,5,8,0” in turn to enter into primary factory menu;
c) Move cursor to item “W/B ADJUST” and press key “OK” to enter into the inferior submenu;
d) Input HDMI signal (VG-849 Timing: 972(1080i)， Pattern: 921 16 step Gray); move cursor to item “MODE”, press keys “▲” and “▼” to choose item “HDMI”, then move cursor to item “TEMPERTURE” and press keys “▲” and “▼” to choose “NORMAL”;
e) Fix “G GAIN”, adjust “R GAIN, B GAIN” to set 14th chromatic coordinates as (285,293);
f) Fix “G OFFSET”, adjust “R OFFSET、 B OFFSET” to set 4th chromatic coordinates as (285,293).
To
make sure chromatic coordinates of bright scale are (X=285±10， Y=293±10) and chromatic coordinates of dark scale are (X=285±10， Y=293±10) during adjusting;
h) Move cursor to item “COPY ALL” to copy white balance data to other channels except DTV channel;
i) Check if chromatic coordinates of COOL and WARM meet the requirements (permitted error of COOL bright scale: x±10， y±10, permitted error of COOL dark scale: x±10，y±10; permitted error of WARM bright scale and dark scale: x±10， y±10); if not, adjust “R_GAIN /B_GAIN/R_OFF/B_OFF” to be up to the requirements and then save the data;
j) Perform “Copy All” for COOl/Warm adjustments except DTV channel;
k) Check if chromatic coordinates of other channels meet the requirements, if not, do adjustment for nonstandard channel alone with the same procedures from b) to j) as HDMI channel’s and then save the data;
l) Switch to DTV channel, change to 16-grey-scale program from central signal source, adjust white balance with the same procedures from e) to g) ; but pay attention not to perform “COPY ALL”
h) Move cursor to item “COPY ALL” to copy white balance data to other channels except DTV channel;
i) Check if chromatic coordinates of COOL and WARM meet the requirements (permitted error of COOL bright scale: x±10， y±10, permitted error of COOL dark scale: x±10，y±10; permitted error of WARM bright scale and dark scale: x±10， y±10); if not, adjust “R_GAIN /B_GAIN/R_OFF/B_OFF” to be up to the requirements and then save the data;
j) Perform “Copy All” for COOl/Warm adjustments except DTV channel;
k) Check if chromatic coordinates of other channels meet the requirements, if not, do adjustment for nonstandard channel alone with the same procedures from b) to j) as HDMI channel’s and then save the data;
l) Switch to DTV channel, change to 16-grey-scale program from central signal source, adjust white balance with the same procedures from e) to g) ; but pay attention not to perform “COPY ALL”
m) Inspect all channels after completing adjustment to check if display is normal;
n) Refer to the following rule for adjustment:
B Gain/Offset: adjust B
Gain/Offset downward, coordinates of X and Y will increase, adjust B
Gain/Offset upward, coordinates of X and Y will decrease;
R Gain/Offset: adjust R
Gain/Offset will affect X value, but affect Lv value slightly, adjust R
Gain/Offset upward, coordinates of X will increase, adjust R Gain/Offset
downward, coordinates of X will decrease;
G Gain/Offset: adjust G
Gain/Offset will affect Y value, and affect Lv value greatly, adjust G
Gain/Offset upward, coordinates of Y will increase, adjust G Gain/Offset
downward, coordinates of Y will decrease;
Note:
Sanyo requires that default color temperature is Normal, adjust white
balance of color temperature Normal and Cool in Dynamic picture mode;
for other customers, please adjust white balance of color temperature
Cool in Dynamic picture mode.
User Menu Setting before shipment
Enter into Factory Menu and choose “Shipment” to perform presetting before shipment;
Main procedures are described as follow:
a) Clear out all programs;
b) Clear out information of VCHIP， parent control, etc.;
c) Default user analog parameter setting;
d) Recover default password;
e) Set Menu Language as English；
f) Set Power mode as Standby.
SMPS (Power Supply Regulator) board and Back-light inverter board Circuit Diagram
Click on the schematics to magnify
Power
voltage checking
According to the wiring diagram specified by “Product Specification”, connect power board assembly, data processing assembly, IR/Key board assembly, backlight board assembly correctly, supply with power, press button to power on the TV set. Make sure the voltages of socket X602 each pin on the main board are correct. Voltage value and range are listed.
According to the wiring diagram specified by “Product Specification”, connect power board assembly, data processing assembly, IR/Key board assembly, backlight board assembly correctly, supply with power, press button to power on the TV set. Make sure the voltages of socket X602 each pin on the main board are correct. Voltage value and range are listed.
Software Upgrading
[Write protection setting
method: enter into ALL-100 upgrading interface “AUTO”, tick off “Config”, press
“config Setting”, set option “Protect” as “All Protect” and “SRWD” as “Enable”,
then press “OK” to complete write protection setting. Please make sure option “Config” is ticked
off during software upgrading and reset write protection after ALL-100
upgrading software is opened each time.]
Upgrading
method with ISP upgrading instrument:
1.Main
board upgrading: connect 4-core line of ISP to Debug port (X603) on main board;
The Unit upgrading: connect both VGA ports of ISP and main board, enter into factory menu and set “ISP Mode” as “ON”.
The Unit upgrading: connect both VGA ports of ISP and main board, enter into factory menu and set “ISP Mode” as “ON”.
2 se Mstar upgrading instrument
(V4.4.2.0 or higher version), enter into menu “Device”, tick off “WP Pin pull
to high during ISP” to make sure Flash hardware write protection is removed and
erasing process is normal.
3 Press menu “Connect”, dialog box
“Device Type is MX25L64” (device type depending on parts used on board
actually) will display to show successful connection. [If connection is failed,
press the first menu “Device” and choose “MX25L64” manually, then press
“Connect”]
5 Press “Auto”, tick off “All chip”,
“program” and other necessary options.
6 Press “Run” to perform upgrading in two steps,
“Erase” and “Program”.
Normal upgrading process:
The
first step “Erasing…， Flash Status: 03” will last for some time, or
erasing is failed if the step passes over immediately; please confirm
procedure.
To perform upgrading again
The second step is “Programming…， Flash Status:00”;
Then prompt “Pass” displays.
The second step is “Programming…， Flash Status:00”;
Then prompt “Pass” displays.
7 Prompt “Pass” will display by
button “Run” when upgrading succeeds.
8 Need not exit ISP upgrading
interface if there are other TV sets to be upgraded , only procedures 3) and 6)
need repeat.
Upgrading
with USB:
1 Make sure U disk is formatted as FAT32;
2 Copy software file named as “Merge. bin” to U disk;
3 Turn on the TV set, then insert U disk in USB port of the unit;
a) First press key “INPUT”, then press keys “2,5,8,0” in turn to enter into primary factory menu;
b) Choose “USB SW Update” to begin upgrading;
4 Upgrading processes:
A Read data from U disk while data indicator light of U disk is twinkling at the same time;
B Upgrading flash, then the unit will be in “standby” mode;
5 Cut off the power supply and then restart the TV set, enter into factory menu to verify version and time parameter, then perform “EEPROM Init” to complete the whole upgrading processes.
1 Make sure U disk is formatted as FAT32;
2 Copy software file named as “Merge. bin” to U disk;
3 Turn on the TV set, then insert U disk in USB port of the unit;
a) First press key “INPUT”, then press keys “2,5,8,0” in turn to enter into primary factory menu;
b) Choose “USB SW Update” to begin upgrading;
4 Upgrading processes:
A Read data from U disk while data indicator light of U disk is twinkling at the same time;
B Upgrading flash, then the unit will be in “standby” mode;
5 Cut off the power supply and then restart the TV set, enter into factory menu to verify version and time parameter, then perform “EEPROM Init” to complete the whole upgrading processes.