Sanyo PDP-42XR9DA, Service Manual

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i) W/B ADJUST , white balance adjustment;
j) POWER Mode , set the turn-on modes. Standby---standby when power on; Mem---memory;
ForceOn---power on; ForceOn can be used for aging; set the “power mode” to “Standby” when
preset ex-factory unless the client appointed it;
k) ISP Mode , ON---soft upgrading through VGA port with ISP device, OFF---DDC function of VGA;
the setting will not be memory and will be “OFF” when power on again;
l) REST ALL , initialization of the factory and user data; after this item is confirm, the unit will
restart and display the guiding image.
m) Factory Data Reset , factory data initialization (including white balance adjustment, ADC
correction and other adjusted data);
n) Factory Channel Preset , preset the factory channel; please connect to the center signal source
when operating; the present digital frequency is CH28 (529.5MHz), CH33 (564.5MHz) for
Australia and CH45 (666MHz) for UK, if the signal changes, perform “DTV manual search” in
“Channel” menu and the operation needs 15s or so.
o) MST Debug , the default is OFF. OFF---RS232 should match the design criterion; ON--- it should
be convenient for using exploitation tool to adjust. The setting will not be memory and will be
“OFF” when power on again;
p) SSC Adjust , adjust the frequency spectrum expand, it will be preset and doesn’t need adjust.
q) AUDIO Curve , adjust the sound curve, it will be preset and doesn’t need adjust.
r) Picture Mode , set the picture values of each channel. Normally, they are preset and needn’t
adjust.
s) Backlight : the default value is 100 and needn’t to adjust normally.
t) RFAGC : it will be preset and prepare for adjustment later.
u) There is data in EEPROM after software upgrade, please perform Reset All before the first
adjustment.
4.2 ADC correction
4.2.1ADC correction in VGA channel
a) Switch to VGA channel.
b) Press” SOURCE”, then press “2, 5, 8, 0” in turn to enter the level one factory menu.
c) Move the cursor to “ADC ADJUST” and press OK to enter the sub-menu.
d) Input VGA signal (VG-848 Timing:856(1024x768/60Hz), Pattern:920 Gray 8 step(H)). Move the
cursor to “mode”, press CH+ or CH- to select “RGB”, move the cursor to “AUTO ADC” and press
OK to adjust automatically till complete.
4.2.2 ADC correction in YPbPr channel
a) Switch to YPbPr channel.
b) Press” SOURCE”, then press “2, 5, 8, 0” in turn to enter the level one factory menu.
c) Move the cursor to “ADC ADJUST” and press OK to enter the sub-menu.
d) Input YPbPr signal (VG848 Timing:968(483P), Pattern:918 75% Color Bar). Move the cursor to
“mode”, press CH+ or CH- to select “YPbPr(HD)”, move the cursor to “AUTO ADC” and press
ENTER to adjust automatically till complete.
e) Input YPbPr signal (VG848 Timing:968(483P), Pattern:918 75% Color Bar). Move the cursor to
“mode”, press CH+ or CH- to select “YPbPr(SD)”, move the cursor to “AUTO ADC” and press
ENTER to adjust automatically till complete.
4.3 White balance adjustment
For NEC, the default of color temperature of COOL is 11000K and the coordinate is (274, 293);