Version Information: Version states by two Arabic Numbers,
which is separated by one dot, e.g. 1.2. The first number “1” means the version
of approved file, the second one ”2” means the version of draft.
The way to enter P-Mode
Method one
A) Switch on the TV set.
B) Press the “MENU” key on RC to show the “PICTURE” OSD
menu.
C) Move the cursor to “Contrast” item then press the “9”,
“7”, “3”, “5” key continuously on RC within 3 seconds then enter P-Mode. The
“P” letter will appear on the left low corner of the screen when enter P-Mode.
Also the “FACTORY HOTKEY” will be set to “ON (= 1)”.
Another method
Press the “RECALL” key on RC to enter P-mode directly.
Note:
1. This will be active only when the “FACTORY HOTKEY” had
set to “ON (= 1)”.
2. When the power on with “FACTORY HOTKEY” had set to “ON (=
1)”, the set will enter the P-Mode automatically.
Exit the P-Mode
Press the “RECALL” or “MENU” key on RC to exit the P-Mode.
Keys’ function on RC at the P-Mode
Use the RC to navigate in P-Mode:
Press “0” or “AT” key for screen voltage adjustment.
Press “1” to “8” and “FAV” key to select factory adjustment
page.
Press “9” key to switch the I2C bus off/on.
Press “▲▼” or “CH+ CH-”key
to select option.
Press “►◄” or “VOL+ VOL-”
key to adjust or select option.
Press “DISPLAY” key to display software version.
Press “MENU” key to close the factory menu or return to the
previous menu or exit the P-Mode.
Press “RECALL” key to enter or exit the P-Mode.
Note: All change in P-Mode will be saved in EEPROM
automatically.
B+ Voltages
1. All relevant connectors and modules must be connected and
inserted.
2. Main voltage is at 220VAC, 50Hz.（
voltage range:110VAC~240VAC,50Hz）
3. Connect a voltmeter to B+ (Cathode of D808 for NX56
chassis or cathode of D833 for NX56B chassis) and switch on the set.
4. Input Philips test pattern signal and standard mode.
5. Adjust VR801, it should as the value in below form B+
Voltage.
RF AGC alignment
Method 1
A. Connect the detector as shown below (Picture 3.2) to
collector of Q101.
B. Receive a grey scale signal with 70dBμV amplitude.
C. Enter P-Mode, press “6” key on RC to select “AGCT”.
D. Adjust AGCT item until the output of the detector becomes
0.8Vpp.
Method 2
A. Receive a grey scale signal with 60dBμV amplitude.
B. Enter P-Mode, press “6” key on RC to select “AGCT”.
C. Adjust the “AGCT” value until the hint display “AGC” just
change between “0” and “1”.
Screen and Focus adjustment
Note: Alignment below should be done after 15 minutes warm
up of TV.
1. Input cross hatch pattern signal to RF input.
2. Enter P-Mode.
2. Press “0” key on the RC and the screen will become a
horizontal line.
3. Adjust the “SCREEN” VR of the FBT until the horizontal
line can just be seen barely (minimum visible intensity).
4. Press “0” key again on the RC to exit the screen voltage
adjustment mode.
5. Adjust the “FCOUS” VR of the FBT until the vertical line
and horizontal line becomes Clear.
White Balance Adjustment
1. Input a black and white pattern to RF input.
2. Enter P-Mode, press key “3” to select white balance
adjustment menu.
3. Use the color analyzer to measure the black side of the
screen. Adjust the value of “RC”,”GC” and “BC” to set the reading of the color
analyzer to x=274, y=280. (11500 K).
4. Then measure the white side of the screen. Adjust the
value of “RD”, “GD” and “BD” to set the reading of the color analyzer to x=274,
y=280. (11500 K).
5. Repeat step 3&4 until you can get the correct reading
for both black and white sides.
Note:
A. The “SubBRI” and “SubCON” items are used to assistant the
white balance adjustment.
It is the same function as the user OSD menu “Brightness”
and “Contrast” items. You can adjust these items to get the expect intensity
when adjusting the white balance.
B. The “BLOR-Y”, “BLOG-Y” and “BLOB-Y” items are used for
the YUV white balance black level offset setup. When the TV white balance
adjustment is done, connect a black and white pattern to YUV input terminal.
Use the color analyzer to measure the black side of the screen. Adjust the
value of the “BLOR-Y”, “BLOG-Y” and “BLOB-Y” to set the reading of the color
analyzer to x=274, y=280.
Sub brightness adjustment
1. Input eight steps gray signal.
2. Press key “3” to enter sub-brightness adjustment.
3. At dynamic state, adjust “BRTC” until the secondary gray
bar just to be seen.
Picture Geometry adjustment: Vertical
geometry adjustment
1. Input a PAL crosshatch pattern signal to RF input.
2. Enter P-Mode, press key “1” to select vertical geometry
adjustment. (The OSD menu for this adjustment as below table 3.6.1. For NTSC
signal, the “-50” will be replaced with “-60”.)
3. Adjust the value of the corresponding item to make the
vertical geometry of the pattern look good.
4. Apply NTSC signal to adjust these value for NTSC vertical
geometry.
1. For NTSC signal, the “-50” will be replaced with “-60”.
2. For NTSC signal, only the “VCEN-60” and “VSIZE-60” items
need the adjustment, the other items use the same data as PAL signal.
3. On producing, please use the “AUTO OFFSET” (On page “2”)
function to easy the geometry adjustment of NTSC signal. When finished the PAL
signal geometry adjustment, press “2” key to enter page “2” to select “AUTO
OFFSET” item, press “►” key to active the automatic offset function. Then the
geometry adjustment of NTSC signal will finish automated. If the geometry of
NTSC signal is look good, you don’t need to adjust the geometry of NTSC signal
any more.
Horizontal geometry adjustment
1. Input a PAL crosshatch pattern signal to RF input.
2. Enter P-Mode, press key “2” to select horizontal geometry
adjustment. (The OSD menu for this adjustment as below table 3.6.2. For NTSC
signal, the “-50” will be replaced with “-60”.)
3. Adjust the value of the corresponding item to make the
horizontal geometry of the pattern look good.
4. Apply NTSC signal to adjust these value for NTSC
horizontal geometry.
Producing parameter setup and
option
1. Enter P-Mode, press key “4” to select page “4”.Set the
corresponding item to require value.
1). Set the shopping status
When trigger the “SHOP INIT” item form “0” to “1”, the TV
will be put on selling status.
The TV status after shopping status:
“FACTORY HOTKEY” had set to “OFF”
B. Picture set to “Standard” status. (Brightness=50,
Contrast=50, Colour=50, White tone=Normal.)
C. Sound set normal.(Volume=30,Balance=50.)
3). Set the value for “POWER LOW” and “POWER HIGH”
A. Connect the main voltage at low threshold 95VAC/50Hz.
B. Select item “POWER LOW”.
C. Adjust the value until the hint display just change
between “AC: NORMAL” and “AC: LOW”.
D. Connect the main voltage at high threshold 255VAC/50Hz.
E. Select item “POWER HIGH.
F. Adjust the value until the hint display just change
between “AC: NORMAL” and “AC: HIGH”.
2. Enter P-Mode, press key “5” to select page “5”. Set the
corresponding item to require value. See below table for detailed description.
Description for AUTO OFFSET and
GET OFFSET
The “GET OFFSET” can use to make the EEPROM copy by PE
engineer. When the PAL and NTSC geometry adjustment had finished, trigger the
“GET OFFSET” from “0” to “1” to store the geometry offset datum between PAL and
NTSC in EEPROM.
On producing, these geometry offset datum can use to easy
the NTSC geometry adjustment. When finished the PAL geometry adjustment,
trigger the “AUTO OFFSET” from “0” to “1”, then the geometry adjustment of NTSC
signal will finish automated. If now the geometry of NTSC signal is look good,
it not needed to adjust the geometry of NTSC signal any more.
3. Enter P-Mode, press key “6” to select page “6”. Set the
corresponding item to require value. See below table.
4. Enter P-Mode, press key “7” to select page “7”. Set the
corresponding item to require value. See below table
Enter P-Mode, press key “8” to select page “8”. Set the
corresponding item to require value. See below table
Note: When change the Language or the tuner type, you must
AC restart the TV set to make it active
6. Enter P-Mode, press key “FAV” to select page “9”. Set the
corresponding item to required value.
Screen voltage (VG2) adjustment
with AKB function
1. Put the TV in AV source without input signal.
2. Enter P-Mode, press RC key "AT", there will
display
3. Adjust the "SCREEN" VR of the FBT until VG2
hint display (LOW/OK/HIGH) display "OK" stably.
4. Press “MENU” return to P-Mode.
Printed circuit board Foil Side
SMPS schematic
Horizontal and Vertical output schematic
