Philips BDL4221V/00, Service Manual

Page: 25 / 128

25
Electrical Instructions
420WN6 LCD TV
Go to cover page
Cool/9300
°
K Normal/6500
°
K Warm/5700
°
K
x (center) 0.283
±
0.005 0.313
±
0.005 0.328
±
0.005
y (center) 0.297
±
0.005 0.329
±
0.005 0.344
±
0.005
Table 4.2.2.1: Reading with Minolta CA-110.
2. Check the gray level color poor & noise condition and chromaticity
Note:
1. Use Minolta CA-110 for color coordinates and luminance check.
2.Set Light Senor off before W-D adjustment.
3. Luminance> 400 cd/m
2
in the center of the screen at
6500(NORAML)color and PC Brightness control; Contrast control
at 100%
4.Set smart picture at normal ,brightness &contrast to 50% after alignment.
5.Set Light senor off after Light senor check.
4.3 Check the digital interface cable (B)
Check the 32 gray level color poor & noise condition.
FACTORY ADJUST MENU
NORMAL
30 ? C
SCALAR GAIN R G B
AUTO-COLOR
ADC OFFSET R G B
ADC GAIN R G B
PC OFFSET R G B
711X SDTV ? SAT.
OK
FACTORY ADJUST MENU
COOL
30 ? C
SCALAR GAIN R G B
AUTO-COLOR
ADC OFFSET R G B
ADC GAIN R G B
PC OFFSET R G B
711X SDTV ? SAT.
OK
F ig.1
F ig.2
5. TV Mode display adjust
5.1 White balance adjustment (B)
5.1.1 General set-up :
Equipment Requirements: Color analyzer.
Input requirements:
Input Signal Type : R F signal
1. Set to NTSC system, frequency=187.25MHZ ( for NA F TA
model ), with white pattern of 100%
2. Set to PAL B/G system, frequency=64.25MHz ( for WE
model ) with white pattern of 100%
Input Signal Strength : 10mV (80 dBuV) terminal voltage.
Input Injection Point : TV Tuner input
Alignment method:
Initial Set-up :
1.Set 711X SDTV Brightness=135; Sat. =64, Contrast =50
in F actory mode (can be fine tuned).
2. Set Smart picture as Personal
3. Apply 100%
F ull White pattern by TV pattern generator.
Alignment :
Set the VIDEO SCALER GAIN R G B=SCALER GAIN R G B
in F actory Mode(See F ig 2.)
[ Enter factory menu : press VOL+ and VOL- keys together around
six seconds or use factory command by Industrial PC.
1. Check (X, Y) co-ordinates in factory mode as below:
Table 5.1.1 Reading with Minolta CA-110.
2.Set TV Color temperature in F actory model as Cool, and
check smart picture at Sports after factory alignment.
3.Check the gray pattern should be distinguished and color bar
is correct.
4.Set TV DCR at ON.
Cool/9300
°
K Normal/6500
°
K Warm/5700
°
K
x (center) 0.283
±
0.015 0.313
±
0.015 0.328
±
0.015
y (center) 0.297
±
0.015 0.329
±
0.015 0.344
±
0.015
" "
" "
6. HDTV Mode display adjust
6.1 White balance adjustment (B)
General set-up:
Equipment
: Quantum Data Pattern Generator 801GD or 802G.
Apply 1080i, RGBW(Infocus2) gray pattern.
Or F LUKE 54200, apply 576i(PAL B/G), DIGITAL
SCAN/DIGI_ADC1 pattern.
Alignment method:
Initial Set-up
: 1.Set Smart picture as Personal , Brightness=50, Color=50,
Contrast=50)
2.Set AUTO-COLOR function for HDTV ADC offset & gain setup.
Alignments : 1. Apply 100% F ull White pattern by Quantum
DATA 802G pattern generator.
Check (X, Y) co-ordinates as below:
If chromaticity (X, Y) co-ordinates is out of specification, re-alignment
Video scalar R/G/B gain from 127/127/127.
2. Set smart picture at sports after HDTV alignment.
3. Check the gray pattern should be distinguished and color bar is correct.
Picture Mode x y
Personal 0.283
±
0.015 0.298
±
0.015
" "
" "