Monday, November 30, 2015

SANYO LCD-42XR56DZ SERVICE MODE SOFTWARE UPDATE AND POWER SUPPLY CIRCUIT DIGRAM

SANYO LCD-42XR56DZ 

SERVICE MODE SOFTWARE UPDATE AND POWER SUPPLY CIRCUIT DIGRAM 

Alignment instruction
Unit adjustment
According to the wiring diagram “9232KE5601JL”, connect power board, digital board, SCART interface board, IR board, key board and side AV board correctly; then power on, check if the display is normal.
Using method of factory menu
a) First press key “SOURCE”
then press number key “2,5,8,0” in turn to enter into initial factory menu;
b) Press keys “CH+” and “CH-” can move cursor to each page of initial factory menu, then press key “OK” can enter into adjustment menu of each page;
c) Press keys “CH+” and “CH-” can move cursor upwards and downwards within one adjustment page;
d) Move cursor to one adjustment item, then press keys “VOL-” and “VOL+” can adjust it;
e) Press key “MENU” can exit adjustment menu of one page to its superior factory menu;
f) Press key “EXIT” can exit factory menu at any time;
g) Press key “OK” can enter into inferior factory menu;
h) Factory menu item “ADC Calibrate” is used to correct ADC of VGA and Component channel;
i) Factory menu item “W/B ADJUST” is used to adjust white balance;
j) Factory menu item “POWER MODE” is used to set power-on mode, “Standby” means the set will be in standby state after power-on; “MEM” means the set will be in the state before the last power-off; “ForceOn” means the set will be working automatically after power-on, this mode is also used for factory-machine-aging; default setting should be “Standby” mode unless specified by customer requirement;
k) Factory menu item “ISP MODE” is used to upgrade unit software from VGA port when the item is set as “ON” and the set is connected to ISP adjustment equipment; DDC function of VGA port will be recovered when the item is set as “OFF”; the value of the item can not be kept in the memory, that is to say the item is reset as “OFF” after power-on again;
l) Factory menu item “RESET ALL” is used to reset factory menu data and user menu data; after execute the item, the set will be started up again and the startup guided picture will be displayed;
m) Factory menu item “FACTORY CHANNEL PRESET” is used to preset factory programs data; it is necessary to connect to central signal source for DTV searching programs. Now digital frequency of central signal CH28(529.5 MHz) and CH33(564.5 MHz) are distributed to Australia programs. Primary preset programs would not be modified along with the changing of central signals, so please select item DTV in menu Channel to manual search digital programs, the process will spend about 15s;
n) Factory menu item “CUSTOM CHANNEL PRESET” : first delete all DTV/ATV programs for factory adjustment, then preset ATV channel data according to customer order requirements; please execute the item to clear out all programs for factory adjustment before leaving factory;
o) Factory menu item “MST Debug” :default setting “OFF” is used for engineering models whose RS232 functions can measure up to design specifications; setting “ON” is convenient for debugging by developing tools; the value of the item can not be kept in the memory, that is to say the item is reset as “OFF” after power-on again;
p) Factory menu item “BACKLIGHT” is used to adjust backlight brightness, adjust the item and test voltage of X802-2# (PWM) to measure up to the maximum PWM voltage in panel specification;
q) Factory menu item “SSC ADJUST” is used to adjust expended functions of frequency content, the software having been preset according to model need not be adjusted again;
r) Factory menu item “AUDIO Curve” is used to adjust audio curve; without special customer requirements, the software having been preset according to model need not be adjusted again;
If the software has been upgraded or EEPROM has data already, please execute item “RESET ALL” before adjustment for the first time.
ADC calibration
ADC calibration of VGA channel
a) Switch to VGA channel;
b) Press key “SOURCE”, then press number keys “2,
5,8,0” to enter into initial factory menu;
c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into interior factory menu;
d) Input VGA signal (VG-848 Timing:856(1024×768/60 Hz)
Pattern 920 Gray 8 step(H)), move cursor to item “MODE” press keys “UP” and “DOWN” to select item “RGB”, then move cursor to item “AUTO ADC” and press key “OK” to begin adjustment automatically until adjustment completion.
ADC calibration of YPbPr channel
a) Switch to YPbPr channel;
b) Press key “SOURCE”
then press number keys “2,5,8,0” to enter into initial factory menu;
c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into interior factory menu;
d) Input YPbPr signal (VG848 Timing 972
1080i ,Pattern 918 SMPTE Color Bar), move cursor to item “MODE”,press keys “UP” and “DOWN” to select item “YPbPr HD ”, then move cursor to item “AUTO ADC” and press key “ENTER” to begin adjustment automatically, a prompt “success” displayed under “AUTO ADC” means auto-adjustment completed successfully;
e) Input YPbPr signal (VG848 Timing 978
483P ,Pattern 918 SMPTE Color Bar), move cursor to item “MODE” press keys “UP” and “DOWN” to select item “YPbPr SD ”, then move cursor to item “AUTO ADC” and press key “ENTER” to begin adjustment automatically, a prompt “success” displayed under “AUTO ADC” means auto-adjustment completed successfully;
White balance adjustment
Unless specified by customer, default COOL color temperature is 12000K, chromaticity coordinates is
272 ,278 ; default Normal color temperature is 9300K, chromaticity coordinates is 285,293; default Warm color temperature is 6500K, chromaticity coordinates is 313,329 .
White balance adjustment processes
The set should be working above 30 minutes before white balance adjustment for it would be in
a stabler state. Use white balance apparatus CA-210 and switch to its BBY channel.
a) Switch to HDMI channel

b) Press key “SOURCE”, then press number keys “2,5,8,0” in turn to enter into initial factory menu;
c) Move to item “W/B ADJUST” and press key “OK” to enter into interior factory menu;
d) Input DVI/HDMI signal
VG-848 Timing: 856(1024×768/60 Hz) Pattern:921 16 step Gray,move cursor to item “MODE”, press keys “UP” and “DOWN” to select item “HDMI1” or other HDMI channels, then move cursor to item “TEMPERTURE”, press keys “UP” and “DOWN” to select item “COOL”;
e) Adjust items “R GAIN
G GAIN,B GAIN” to set chromaticity coordinates of the 14th step is 272,278 ;
f) Adjust item “R Offset
G Offset,B Offset” to set chromaticity coordinates of the 4th step is 272,278 ;
g) During adjustment , make sure that color temperature of bright step is (X=272±10 Y=278±10) and color temperature of dark step is (X=272±10 Y=278±10);
h) Then move cursor to item “COPY ALL” to copy white balance data to the other channels except DTV channel;
i) Check if color temperature of HDMI NORMAL and WARM meet requirements as below: bright step: allowable error is ±10, dark step: allowable error is ±10; otherwise adjust items “R_GAIN /B_GAIN/R_OFF/B_OFF” to meet requirements and then save data;
j) Switch to other channels ATV, AV COMPONENT and D-SUB , check if color temperature of COOL NORMAL and WARM meet requirements; otherwise adjust them respectively with
16 step Gray signal and the same adjustment method as HDMI channel’s; exit menu “W/B ADJUST” after adjustment and the data would be saved automatically;
k) DTV channel adjustment: switch to DTV channel, input 16 step Gray signal, enter into factory menu, then begin adjustment followed by steps “e, f, g”;
l) Adjustment rules for reference as below:
adjust B gun: adjust B gun value downwards , then coordinates of X
Y will rise;
adjust B gun value upwards , then coordinates of X
Y will descent;
adjust R gun will effect the coordinate of X , and effect the value of Lv a little:
adjust R gun value upwards , then coordinate of X will rise;
adjust R gun value downwards , then coordinate of X will descent;
adjust G gun will effect the coordinate of Y , and effect the value of Lv a lot:
adjust G gun value upwards , then coordinate of Y will rise;
adjust G gun value downwards , then coordinate of Y will descent;
note: default color temperature for SANYO customer is Normal; change to picture mode
Dynamic, adjust chromaticity coordinates of color temperature Normal and Cool;
only adjust chromaticity coordinates of color temperature Cool for other customers when picture mode is Dynamic.
Performance check
TV functions
Connect RF port to central signal source, first enter into menu CHANNEL, then search programs automatically, check if there is any omitted program, check if the output of speakers is normal, check if the picture is normal.
AV/S-Video port
Input AV/S-Video signal respectively, check if the picture, the sound and other functions are normal;
SCART port
Input signal to SCART port, check if the picture, the sound and other functions are normal; Switch to TV channel, check if the picture, the sound and other functions of SCART OUTchannel are normal;
YPbPr/YCbCr port
Input YUV signal from signal generator VG-848 with YUV formats as Table 4 respectively, check if the display and the sound are normal under the circumstances of power-on/off, switching channel, switching signal format, etc.
User menu setup before leaving factory
Enter into page “LOCK” of user menu, select submenu item “Restore Factory Default” to preset items before leaving factory as below:
a) Clear out all programs information;
b) Clear out information of parental control (VCHIP);
c) Default setup of user analog data;
d) Set Menu Language as English;
e) Set Power on MODE as Off.
Burning and upgrading software method with burning tool ISP
1
Main board upgrading: connect 4-core line of burning tool ISP to Debug port location No. X807 of main board;
Unit upgrading: connect both VGA ports between burning tool ISP and main board, then enter
into factory menu and set item “ISP Mode” as “ON”;
2
Use on-line burning tool of Mstar, enter into menu “Device”, select item “WP Pin pull to high during ISP”; for the normal erasing process, make sure hardware write-protect of Flash is canceled;
3) Select menu “Connect”, a dialog “Device Type is MX25L64” will be displayed, that is to say connecting is successful;
If failing to connecting, select the first menu “Device” and select item “MX25L64” manually, then press key “Connect”.
4) Press key “Read” select burning file (for example MERGE.bin)
5) Select menu “Auto”, then select items “All chip”, “program” and other configuration
6) Press key “Run” to begin burning software, there are two steps for the process: Erase and Program normal burning steps are as follows: the first step “Erasing… Flash Status: 03” will be lasting for a moment, otherwise skipping over means unsuccessful erasing; please confirm process 2 and then burn software again; the following step “Programming… Flash Status:00” will be done until a prompt “Pass” is displayed..
7) A prompt “Pass” will be displayed beside the key “Run” for successful burning
8) Need not exit ISP burning interface and only repeat the process 3 and 5 to go on burning software for other sets.
On-line burning and upgrading method from USB port
1
Be sure to format a U disk as FAT32;
2
Copy program file to the U disk with the name “Merge.bin”;
3
Power on, be sure to switch to ATV or DTV channel and not to display OSD interface; insert the U disk into a USB port, then USB upgrading process will begin automatically;
4)Upgrading processes:
A,Reading data from the U disk:
A prompt “Searching USB” is displayed and an indicating light of U disk is twinkling;
B,Burning Flash:
A prompt “Updating! Please don’t power off!!!” is displayed and an indicating bar is showing
upgrading schedule; the set will be in Standby mode after the burning process completed;
5)Start up the set again, enter into factory menu to verify software version and time parameters; then execute item “RESET ALL” to complete the whole burning process.
*** Method of burning from USB could not be sure to be suitable for all kinds of U disks, so please try other U disks if necessary.
POWER SUPPLY CIRCUIT DIGRAM 
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