Sanyo LED-22XR10F, Service Manual

Page: 7 / 51

4
Alignment instructions
4.1 Unit adjustment
4.1.1
According to the wiring diagram “
9219KH7201JL
”, connect power board, main board, IR board
correctly, then switch on main power and press key “standby” to turn on the TV set, check if the display is
normal.
4.1.2 Using
method of factory menu
a) Press key “
SOURCE
” first, then press keys “
2
,
5
,
8
,
0
” in turn to enter into initial factory
menu;
b) Press keys “
▲
” and “
▼
” to move cursor to the item of factory menu, press key “
OK
” to enter into
the inferior factory menu from current menu page;
c) Press keys “
▲
” and “
▼
” to move cursor upwards or downwards within one page;
d) Press keys “
◄
” and “
►
” to change the value when cursor is moved onto one item;
e) Press key “
MENU
” to exit current menu to its superior factory menu;
f) Press key “
EXIT
” to exit factory menu in any case;
g) Press key “
OK
” to enter into inferior menu;
h) Factory menu item:
ADC ADJUST
, for ADC calibration of VGA and Component;
i) Factory menu item:
W/B ADJUST
, for white balance adjustment;
j) Factory menu item:
POWER Mode
, for setting power-on mode; the default setting is
“Standby” mode unless specified by customer;
Standby:
TV set will be in “standby” mode after power-on;
MEM:
TV set will keep states before last power-off;
ForceOn:
TV set will turn on automatically; it also can be used as aging mode at factory;
k) Factory menu item:
Other Setting-> AUDIO Curve Setting
, for sound curve adjustment; the
item has been preset according to the model usually, so it should not need to be adjusted without
special customer requirements;
l) Factory menu item:
EEPROM Init
, for factory and customer data initialization; TV set will
reset and initial guiding interface will display after executing the item;
m) Factory menu item:
Fac. Channel Preset
., for factory channels presetting; it is necessary to
connect to central signal source before operating the item; now digital frequency of central signal
CH28
（
529.5 MHz
）
and CH33
（
564.5 MHz
）
are distributed to Australia programs DVB-T; original
preset digital programs will not change along with the modification of central signal, so please
operate item “DTV” of menu “Channel” to search digital programs, the operate will last 15s;
n) Factory menu item:
Shipment
, all ATV & DTV programs for factory adjustment will be
cleared out first, then customer ATV channels will be preset according to order requirements; the
item must be executed before shipment to clear out channels for factory adjustment;
o) Factory menu item:
Other Setting->ISP Mode
, default setting is “OFF”, it will not be kept
in memory, that is, it will always in “OFF” mode after turning on TV set again;
“
OFF
”: DDC function of VGA port will recover;
“
ON
”: software can be upgraded from VGA port after connecting ISP device ;
Note: Please execute “RESET ALL” before adjustment for the first time if EEPROM contains
data or after software upgrading;
p) Factory menu item:
Backlight
, for adjusting brightness of backlight; test voltage of X401-12#
(PWM) to make it within the range of PWM voltage corresponding to maximum brightness
specified by panel specification; the item need not adjustment for it has been preset by software;