Philips ME5P Service Manual page 39

23" lcdtv
Hide thumbs Also See for ME5P:
Table of Contents

Advertisement

Item
720X576P
720X480P
50Hz
60Hz
Pixel rate
27 MHz
27.027MHz
(37.037 ns)
(37.000 ns)
Horizontal
31.25 KHz
31.5KHz
Frequency
Active
720 pixels
720 pixels
(26.667 us)
(26.640 us)
Blank
144 pixels
138 pixels
(5.333 us)
(5.106 us)
Period
864 pixels
858 pixels
(32.000 us)
(31.746 us)
Pulse
12 pixels
16 pixels
delay
(0.444 us)
(0.592 us)
Pulse
64 pixels
62 pixels
width
(2.370 us)
(2.294 us)
Vertical
50 Hz
60 Hz
Frequency
Active
576 lines
480 lines
(18.432 ms)
(15.238 ms)
Blank
49 lines
45 lines
(1.568 ms )
(1.429 ms)
Period
625 lines
525 lines
(20.000 ms)
(16.667 ms)
Pulse
5 lines
9 lines
delay
(0.160 ms)
(0.287 ms)
Pulse
5 lines
6 lines
width
(0.160 ms)
(0.190 ms)
EQ before
0 line
0 line
EQ after
0 line
0 line
Scan
Progressive
Progressive
Sync type
ACS
ACS
Video kind
Analog YPbPr
Analog YPbPr
(SMPTE
(SMPTE
RP177)
RP177)
3.
Power supply
Table 2
3.1
Setup the AC I/P at 264 VAC and 90VAC , and power board
provide two DC Output
1. The DC output voltage is 24V +/- 1V DC for Inverter and Scaler
board
Measured point between pin3(+24V) and pin6(GND) at item 1001 of
scaler board
2. The DC output voltage is 16V+/- 1 V DC for Scaler and Audio board
Measured point between pin1(+16V) and pin6(GND) at item 1001 of
scaler board
3.2
Any adjustment is not needed.
4.
TV Mode display adjust
The adjustment process must be primary with TV mode
4.1
White balance adjustment (B)
4.1.1 General set-up :
Equipment Requirements: Color analyzer.
Input requirements:
Input Signal Type
1.
Set to NTSC system, frequency=187.25MHZ
( for NAFTAmodel ) with white pattern of 100%
2.
Select smart picture to PERSONAL MODE and
c
heck the x, y data.
Input Signal Strength : 10mV (80 dBuV) terminal voltage.
Input Injection Point : TV Tuner input
Alignment method:
Initial Set-up
:
1. Set TV(7119) Brightness=134; Saturate =58, Contrast =64, Tint=24
in Factory mode
2. Set Smart picture as "Personal"( Brightness=56; Saturate =62,
Contrast =68,
Sharpness=50,Tint=50
3. Apply "100% Full White" pattern by TV pattern generator.
Alignment
:
1. Keep Gain R of video SCALER GAIN equals to 131
2. Adjust the VIDEO SCALER GAIN RG B in Factory Mode
"NORMAL". (See Fig 1.)
[ Enter factory menu : press VOL+ and VOL- keys together around
six seconds]
1. Check (X, Y) co-ordinates as below:
x (center)
y (center)
Electrical Instructions
720X576i
720X480i
50Hz
60Hz
13.5MHz
13.5MHz
( 74.074 ns )
( 74.074 ns )
15.625KHz
15.734KHz
720 pixels
720 pixels
(53.333 us)
(53.333 us)
144 pixels
138 pixels
( 10.667 us )
( 10.222 us )
864 pixels
858 pixels
( 64.00 us )
( 63.556 us )
12 pixels
19 pixels
( 0.889 us )
( 1.407 us )
63 pixels
62 pixels
( 4.667 us )
( 4.593 us )
50 Hz
59.94 Hz
576 lines
480 lines
( 36.864 ms )
( 30.507 ms )
49 lines
45 lines
(3.136 ms )
(2.860 ms )
625 lines
525 lines
( 40 ms )
( 33.367 ms )
2 lines
4 lines
( 0.128 ms )
( 0.254 ms )
3 lines
3 lines
(0.192 ms )
(0.191 ms )
2 line
3 line
2 line
3 line
Interlace
Interlace
ACS
ACS
Analog YPbPr
Analog YPbPr
(SMPTE RP177 )
(SMPTE
RP177 )
: RF signal
Normal/ (8500°K)
0.292 ± 0.015
0.293 ± 0.015
Table 3: Reading with Minolta CA-110.
2. Check Gain R of video SCALER GAIN, It shall be R=131
3. Check the gray pattern should be distinguish and color bar is correct
4.1.2
Set TV Color temperature in Factory mode as "WARM", and
"COOL"
The VIDEO SCALER GAIN R\G\B value will be followed below
.
R gain
G gain
B gain
FACTORY ADJUST MENU
ORIGINAL
PANNEL COLOR
SCALER GAIN
AUTO-COLOR (OK)
ADC OFFSET R G B
ADC GAIN
R G B
PC OFFSET
R G B
7119 SDTV
?
DVI SHIFT
H V
TV
SHIFT
H V
HD
SHIFT
H V
SHOW LOCK MESSAGE
HDTV ADC OFFSET
HDTV ADC GAIN
VIDEO SCALER GAIN
SCALER HUE
EXIT
5.
PC mode Display Adjustment
5.1
Display quality adjustment
Use timing mode as describe in 2.2, and use the POPO (pixel on
pixel off) pattern to adjust the clock until no stripe and adjust the
phase until clear picture.Check all pre-set 6 modes.
5.2
WHITE-D adjustment (B)
5.2.1 At factory mode apply 1280X768 @60Hz mode with 32 gray
pattern. Set smart picture at "Normal" , and Brightness to 90% and
Contrast to 50%.Press AUTO-COLOR function for auto ADC offset
and gain setup.
5.2.2 Adjustment
1. Apply a 1280*768 / 60Hz signal with full white pattern, set
brightness control at 90%, and contrast control at 50%.
2. Keep Gain R of scaler gain R G B equals to 131,then
adjusting scaler gain R G B.
3. Check (X, Y) co-ordinates as below:
x (center)
y (center)
Table 4: Reading with Minolta CA-110.
4. Check Gain R of video SCALER GAIN, It shall be R=131
5. Check the gray level color poor & noise condition and chromaticity
Note: 1. Use Minolta CA-110 for color coordinates and luminance check.
2. Luminance> 400 cd/m
(NORAML)color and PC Brightness control; Contrast control at 100%
5.2.3 Set Smart picture as "WARM, and "COOL"
The SCALER GAIN R\G\B value will be followed below
R gain
G gain
B gain
ME5P 23"
Go to cover page
Normal
WARM
COOL
131
131
131
G
G-4
G+1
B
B-10
B+12
R G B
SAT
TINT
R G B
R G B
R G B
Value
Normal/ (8500°K)
0.292 ± 0.020
0.293 ± 0.020
2
in the center of the screen at
Normal
WARM
131
131
G-3
G-7
B-5
B-16
39
COOL
131
G-3
B+9

Advertisement

Table of Contents
loading

Table of Contents