Philips 170M4FS/00, Service Manual

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170T4
9300
°
K 6500
°
K sRGB
x (center) 0.283
±
0.005 0.313
±
0.005 0.313
±
0.005
y (center) 0.297
±
0.005 0.329
±
0.005 0.329
±
0.005
24
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Electrical instructions
3. PC mode Display Adjustment
3.1 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.
Repeat on all pre-setting 90 modes.
3.2 WHITE-D adjustment (B)
3.2.1 At factory mode apply mode with 64
gray pattern.
Set main controls brightness control at 100% and contrast to 50%.
Activate auto-sub function for auto offset and color.
3.2.2 Apply white pattern, set brightness control at 50%, and
contrast control at 50%.
Adjust the R, G, B gain of Scalar in Factory Mode.
The 1931 CIE chromaticity (X, Y) co-ordinates shall be:
Use Minolta CA-110 for color coordinates and luminance check.
Luminance> 350 Nits in the center of the screen at Original color
and PC Brightness control; Contrast control at 100%
The luminance of sRGB is 180nits at center, and brightness and
contrast were at 50%.
3.3 Check the panel interface cable
Set brightness and contrast at 50%
Check the 64 grey level color poor & noise condition.
TV Mode display adjust
4.1 White balance adjustment (B)
Equipment Requirements: Color analyzer.
Input Signal Type :RF signal,modulated with white pattern.
B/G system, frequency=64.25MHz (for Europe model)
PAL D/K system, frequency=65.25MHz (for China model)
Both PAL B/G and NTSC M system, frequency= 64.25 Mhz
(for AP)
NTSC M system, frequency= 187.25 MHz (for Nafta model)
Input Signal Strength: >= 10mV rms (80 dBuV) terminal
Voltage.
Input Injection Point: Aerial input
1280X768 60KHz/75Hz
Preset R, G, B GAIN is 127.
(To avoide gray pattern color poor, the R/G/B GAIN vary from
127 to 0 when 9300/ 6500/ sRGB color temperature
alignment).
3.
General set-up :
Input requirements:
FACTORY ADJUST MENU
Alignment method:
123 = 60
Expected Result
5.
General set-up:
Input requirement :
Alignment method:
65/65/65 120.
Expected result:
Initial Set-up : After WhiteD adjust, Select color temp to Normal
in TV mode.
Pre-set TV Brightness =
; Contrast in Factory mode.
Apply 100% Full White pattern by TV pattern generator.
Alignment :Check the gray level color poor & noise condition. If
need adjustment, please adjust factory TV Brightness and
Contrast in.
:Specifications of white balance at user
Contrast/Brightness 50%.
Readings with Minolta CA-110.
5.1 White balance adjustment (B)
Equipment :Quantum Data Pattern Generator 801GD or 802G.
Input Signal Type : Apply 1080i mode with white pattern.
Initial Set-up: After PCWhite D adjustment ,Set color to
Normal in DTV mode.
Set DTV RGB cut off at , RGB gain at (pre-set value)
User Contrast at 100 and Brightness at 50.
Apply
100% Full White by pattern generator.
Alignments :Check the gray level color poor & noise condition. If
needed , could be fine tune DTV cut-off /gain of factory mode to
optimize performance.
Specifications of white balance
Readings with Minolta CA-110.
6. Eeprom preset value(Could be modify)
In HDTV user mode OSD, the H/V Position function is for user fine
tune picture center for different DTV source.
” ”
” ”
” ”
HDTV Mode display adjust
Picture Mode
Picture Mode x y
Normal (Original) 0.313
±
0.030 0.329
±
0.030
Function