RCA L WD250 Series Installation instructions

Disassembly of the LxxWD250

Disassembly of the LxxWD250
• Use the following disassembly instructions and
you will not need to lay the unit down on it’s front.

Disassembly of the LxxWD250
• Stand unit up right on work table.
• Remove all screws mark by an arrow. (8-14
depending on screen size)

Disassembly of the LxxWD250
• Lay unit on back.

Disassembly of the LxxWD250
• Remove screws and base. (4 screws)

Disassembly of the LxxWD250
• From under base mounting plate remove 4
screws that hold mask (screen frame) in place.
• DO NOT remove large silver screws!

Disassembly of the LxxWD250
• Grasp bottom center of Mask (screen frame) and
gently, slowly lift up and forward.

Disassembly of the LxxWD250
• Disconnect speaker wire connectors. (2 cables)
Pay attention to which wire goes to left and right
speakers.

Disassembly of the LxxWD250
• Remove 2 screws from each display mount. 2
mounts on the left and the right side of display
assembly. (Top right mount shown below)

Disassembly of the LxxWD250
• Remove 2 screws each from the two bottom
mounts of screen display assembly.
• DO NOT Remove any other screws from unit.

Disassembly of the LxxWD250
• Grasp bottom of display assembly and pull up
and forward. Assembly will hinge upwards.
• Do not pull up more than 12 to 24 inches.
Careful not to pull wires taught. You can pull
plugs from connectors!

Disassembly of the LxxWD250
• Using a dowel rod or curtain rod that is 18 to 22
inches in length, ½ inch or larger diameter, prop
up display assembly as shown in picture below.

Disassembly of the LxxWD250

Disassembly of the LxxWD250
Careful not to pull cable too tight else plug will separate from connector!

Alignments
P810
Page 2-2
Page 2-1
Entering the Factory Service mode
Turn the instrument OFF. Then press the Vol - button on the
remote and Vol - on the keypad simultaneously. Hold the
buttons for approximately 10 seconds until the instrument
turns ON. Using the remote if you want to select an item,
press the Up (^)and Down (v) buttons.Adjust the setting
value using the Left (<) and Right (>) key. Press the Clear
button to return to the main menu after adjusting a value.
Press the Clear button or select Go Back the menu to exit
the Factory Service mode.
Main Menu
The Main Menu includes the following features:
Dealer Service Menu: This is at the very top of the screen. It
contains the current software version loaded in the instrument.
Go Back: Returns to the previous menu.
Test Pattern: Menu will bring up color test screens.
Speaker Test: Press OK for a 5 second test tone.
Operating Hours: Displays the hours of operation
NVM Initialise: Clears the NVM. This function resets all
customer settings to a out of box condition. Press the OK
button to start the process.
Reset Operating Hours: Resets the operating hours to 0.
Current Software Info: Displays the current software
version.
Software Upgrade: Allows for software upgrades.
Picture: Customer Picture Menu
Video Alignment: Video Alignemt Menu
Clear RRT: Clears the Regional Ratings Table. Select OK to
clear the table.
Test Pattern
The Test Pattern menu will display either a multiple color
bar or a flat color screen. Each display will be visible for
approxitimately 5 seconds. Use the arrow up or down on the
remote to select Test Pattern from the menu. Then use the
OK button on the remote to enter the next menu. Select Go
Back to return to the previous menu.
Single Color: Will bring up 2 options.
Manual: Select which color to display (Red, Green, Blue,
White and Black). Press the OK button on the remote to
display the pattern.
Automatic: Select, then select OK to scroll through the
different color screens (Red, Green, Blue, White and Black).
Will continue to scroll through the patterns until the OK button
is press.
Multiple Color: Select, then select OK to display multiple
bands of color.
Software Upgrade
Software upgrades are installed by the use of a generic USB
device. Specific instructions related to software updates will
be released within the software data package.
Local Upgrades/Applications: Will search for software up
grades, then initiate the upgrade process.
Current Software Info: Displays the current software version
and the date of install.
Video Alignment
The Cut Off alignment is used to define the color
coordinates for low level luminance. The Whitepoint is
used to define the color coordinates for bright luminance
This alignment must be completed using Line Input
(CVBS).
1. Enter the Factory Service mode.
2. Select VIDEO from the menu, then select Normal from
the Color Temperature sub-menu.
NOTE: It is only necessary to perform the Cut Off and White
Point Alignments with the Color Temperature set to
the Normal position. The values for Cool and Warm
are interpolated based on the Normal settings.
3. Insert a grey test pattern with a 10 to 20 Nits luminance
level.
4. Using a Color TV Analyzer meaure the coordinates at
the center of the screen. Adjust Red Offset, B Offset and
Green Offset for x = 0.280 +/- 5%, y = 0.290 +/- 5%
5. Insert a 50IRE (or 150 nits) grey test pattern.
6. Using a Color TV Analyzer measure the coordinates at
the center of the screen. Adjust R Gain, G Gain and B
Gain for x = 0.280 +/- 5%, y = 0.290 +/- 5%.
NOTE: It may necessary to switch between the Cut Off and
White Point Alignments in order to achieve the
proper alignment.
8. Exit the Service Menu by press the Clear button on the
remote.

Alignments
P810
Brightness Alignment
1. Enter the Factory Service mode.
2. Select VIDEO from the menu, then select Brightness.
3. Insert a pluge test pattern thru RF with a 2% setup
background with a 0% and 4% bar.
4. Adjust the Brightness so that the 0% bar is invisible
with the 4% bar visible.
5. Exit the Factory Mode by pressing Clear on the remote.
Peak White Adjustment
The Peak White alignment must be completed to the
following standards.
1. Enter the Factory Service mode.
2. Select VIDEO from the menu, then select Peak White.
3. Input a test pattern with a 100% white centered pad on
a dark background.
4. Using a Color TV Analyzer measure the luminance
level (Y[nit]) of the white pad. Adjust with the Scaling
Contrast the Light Output Level (PW Level) for 400
Nits + 20%/- 10%.
Defective Pixel Specification
A pixel is defined as three elements or dots, one red, one
blue, and one green. Thus one bright pixel is three bright
adjacent dots. No bright pixels are allowed but 3 bright
dots are allowed subject to the following:
The bright dots must be viewable on normal program
material (not static test patterns) when viewed at a distance
of five feet from a point perpendicular to the center of the
screen at eye level. The panel is considered defective if
the pixels are viewable and they are within ¼” of another
bright dot.
Also, no more than eight dark dots, and no dark pixels
will be accepted when viewed under the same conditions.

IF
A nalog Fr on t E nd
PN X 3000
PN X 8550
Flat P anel Dis play
DDR
S DRAM
2x 8M x 16
NA ND
EE PR OM
32M x 16
HD M I / A DC
TD A 9975
HD MI EDI D
EE PR O M
DS UB
VG A
ED ID
EEP R O M
AT S C, NTS C, QAM
Tu ner
D igital-A nalog Front E nd
TD 13660
ED ID
EE PR O M
O O B Tu ner
uP C 3200 G R
FD C FA T
NX T 2003
CI Co ntrol
STV 0701
L-R
L-R
PN X 2015
POD
Ch annel Decoder
FA V
Re ar C inch
C om ponent Input 2
C om ponent Input 1
S erial A /V Input
DDR
SD R A M
16M x 16
D ig ita l A /V In p u t LV D S
T ran sp o rt S trea m
Flash
512K b IR KB
Audio Amp
Monitor Out
DE NC
A udio
Processor
S tandby uP 80C 51
US B 1.1
TU N N E L
E EPR OM
8K x 8
P810 BLOCK DIAGRAM

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6
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1
P810 Base Exploded View
4
5
6FOOT PAD
BASE
BRACKET FOOT
MACHINE SCREW
BASE PANEL
SCREW

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ASM BRACKET
SCREW M/C B 4 X 8
LEFT BRACKET
SCREW M/C B 4 X 8
RIGHT BRACKET
SCREW M/C B 4 X 8
BRACKET
SCREW TRIANGLE M/C B 3X8
SCREW TRIANGLE M/C B 3X8
SCREW TRIANGLE M/C B 3X8
SCREW TRIANGLE M/C B 3X8
SCREW TRIANGLE M/C B 3X8
POWER BRACKET
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SCREW TRIANGLE M/C B 3X8
SCREW TRIANGLE M/C B 3X8
BRACKET
SPONGE
SPONGE
TERMINAL BAR
SCREEN COVER
TWIST TIE NY66
SCREW B 4 X 15 AB
SCREW M/C F 3 X 10
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29
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36
37
SCREW TRIANGLE M/C B 3X8
SCREW TRIANGLE M/C B 3X8
SCREW TRIANGLE M/C B 3X8
SCREW TRIANGLE M/C B 3X8
SCREW TRIANGLE M/C B 3X8
SCREW TRIANGLE M/C B 3X8
SPACER SUPPORT
FIBER SINK
BRACKET POWER SOCKET
34
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36/37
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P810 Chassis Exploded View