Sanyo LED-46XR123D, Service Manual

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4 Adjustment Instruction
4.1 The unit adjustment
4.1.1 According to the wiring diagram specified by “Product Specification”, connect
power/backlight board assembly, data processing assembly, IR/Key board assembly correctly, supply
with power, turn on the TV set. Check display.
4.1.2
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;
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 perform 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 containing 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.
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.
4.1.3 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;