Philips V30 107T00, Service Manual

Page: 56 / 109

56
107T5
GENERAL PRODUCT SPECIFICATION
Go to cover page
17" V30 GS4 107T5-71K CMTR
TYPE : 107T51/00
BRAND : PHILIPS
2003-01-07
Wayne Lin
2003-01-07
30
14 590
3.6 RGB Amplifier
3.6.1 Video amplifiers
Dot Rate : 108 MHz
Over / undershoot : 15% Max. (Transient response)
Sag : 5% Max. (pulses of 0.70H)
Black level shift : 5% Max.
3.6.2 Brightness and Contrast
Reference mode 68.7 KHZ/85 HZ full white pattern.
DISPLAY LIGHT OUTPUT
Light output
Brightness Contrast (full white)
Minimum Minimum not visible
Center Maximum 30
±
5 FL.
100mmx100mm block
Brightness at center and contrast at maximum light output is 41+/-6 FL.
sRGB : When sRGB mode is selected, the light output (Full white pattern) shall be 23 +/-
3FL regardless of main contrast and brightness controls. Adjusting contrast or brightness
will auto exit sRGB mode and go to 6500K mode.
3.6.3 Raster light output
Apply 68.7KHz/85Hz mode with no video pattern, set brightness at center(50%) and
contrast control at minimum(0%).
The light output on the screen center should be < 0.2FL.
3.7 Variation of image size ( For preset modes only )
Due to brightness change :
£
1.0 %
Long term (Static) : <1.50mm on left/right side
(See Fig.7) <1.20mm on top/bottom side
Due to aging
(25
°
C, 300 hrs) :
£
1.0 %
Due to mains voltage
variation (
±
10% ) :
£
1.0 %
3.8 Degaussing
An automatic degaussing circuit is provided which requires no intervention.
The degaussing shall be activated and work effectively at the time of switch-on
or switch-on again or pressing the manual degaussing key after the degaussing
circuit has been switched off for longer than 30 minutes
(The PTC should be completely cooled off).