Philips V50 109B5, Руководство по обслуживанию

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Electrical Adjustments
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11 V50 109B5
1. General
2.
3.0 Main chassis alignment
Input signal mode
Inspection modes : 8
Resolution modes H. freq. V. freq. H. V.
(Inspection timing)
1. 800 x 600 53.7 Khz 85 HZ(VESA) Don'tCare
2. 1024 x 768 60.0 Khz 75 HZ(VESA) Don't Care
3. 1024 x 768 68.7 Khz 85 HZ(VESA) Don't Care
5. 1280 x 1024 80.0 Khz 75 Hz (VESA Don't Care
7. 1280 x 1024 91.1 Khz 85 Hz (VESA) Don't Care
8. 1600 x 1200 93.8 Khz 75 Hz (VESA) Don't Care
3.1 Power supply adjustment
3.1.1 Set Vg2 manually (screen) to fully counterclockwise (zero
beam current).
3.1.2 Apply 80KHz/75Hz full black pattern.
3.1.3 Monitor the following auxiliary voltages.
3.2 High Tension Voltage (EHT) adjustment
3.2.1 Apply 68.7 KHz /85 Hz 1024x768 resolution signal.
Adjust manually (EHT) to obtain 26.00.3KV at CRT
anode at zero beam Current.
3.3 Check PF value with MHR function (option )
3.3.1 Apply 91kHz / 85Hz resolution with cross-hatch (contrast
Max. / brightness 50% ).
3.3.2 Apply input voltage 230VAC, input power consumption
about 55W 65W. The PF value about 0.7 0.8 (measure
equipment: AC Power Analyzer PM1200).
4. 1152 x 864 77.1 Khz 85 HZ(VESA) Don't Care
6. 1920 x 1440 90.0 Khz 60 Hz (VES) Don't Care
R3699
+197.0V source across C2152 and gnd +197.7V +/- 2.5 VDC
+ 82.5V source across C2151 + 80.5V +/- 2.0 VDC
+ 6.2V source across C2155 + 6.2V +/- 0.35 VDC
+ 12.4V source across C2153 +12.4V +/- 0.7 VDC
- 12.6V source across C2154 - 12.6V +/- 0.7 VDC
4. General conditions for alignment
4.1 During all alignments, supply a distortion free AC mains voltage
to set via an isolating transformer with low internal impedance.
4.2 Align in pre-warmed condition, at least 30 minutes warm-up with
nominal picture brightness.
4.3 Purity, geometry and subsequent alignments should be carried
out in magnetic cage with correct magnetic field.
Northern hemisphere : H=0, V= 430+/-50 mG, Z=0
Southern hemisphere : H=0, V=-520+/-50 mG, Z=0
4.4 All voltages are to be measured or applied with respect to ground.
4.5 Adjust brightness controls to center position except for contrast
control which should be set to MAX.
Note: Do not use heatsink as ground.
4.6 Any external voltage sources should have a low internal
impedance.
4.7 Adjust function controls to center position unless otherwise
stated.
4.8 The white balance and purity has to be adjusted in dully lighted
room.
4.9 All alignments have to be done in a room with a temperature of
25+/- 10 C.
0
5. To access factory mode
To leave factory mode
5.1 Turn off monitor (don't turn off PC)
5.2 Press '"
" and " " simultaneously on the front control
panel,then press " ",wait till the OSD menu with characters
V40 109F5 V0.45 20030410 (below OSD menu)" come on the
screen of monitor.
5.3 If OSD menu disappears on the screen of monitor, press " "
again (anytime), then the OSD menu comes on the screen again.
5.4 Using " " : to select OSD menu.
5.5 Using " " : to increase or decrease the setting.
5.6 Using " " to access/confirm the selection.
5.7 After alignment of factory mode, turn off monitor (if you do not
turn off monitor, the OSD menu is always at the factory mode),
then turn on monitor again (at this moment, the OSD menu goes
back to user mode).
MODEL SELECT
Factory
Mode
Indicator
V50 109B5 97K V0.41 20030421
6. Adjustment of the picture geometry
6.1.1 Apply Table 4 (79.976KHz/75.025Hz) without video signal, set
Brightness at 100%, set H-size V-size for raster size around
355x265 mm and set vertical position to 50%, Adjust Raster H
and Raster V centering for centered raster via I2C bus.
6.1.2 Adjust the Horizontal Size to 355mm.
6.1.3 Adjust the Horizontal Position to center position.
6.1.4 Adjust the Vertical Size to 265 mm.
6.1.5 Set Vertical Position = 50%, adjust the Raster V for correctly
centered vertical video.
6.1.6 Adjust picture tilt ( Rotate ) for correct TOP/BOTTOM lines.
(Picture tube should be mounted without tilt w.r.t. Cabinet)
6.1.7 Adjust pincushion to get optimum vertical line.
6.1.8 Adjust trapezoid to get optimum vertical line.
6.1.9 Adjust balanced pincushion to get optimum vertical line.
6.1.10Adjust the parallelogram to get optimum vertical line.
6.1.11 Adjust the Top/Bottom corner control to get optimum corner
geometry.(6.1.6, 6.1.7, 6.1.8 and 6.1.9 may need to be readjusted)
6.1.12 Store the set result and exit OSD.
(the values for pincushion, trapezoid, balance pincushion and
parallelogram can be copied to the other inspection modes to
shorten alignment time)
6.2 Other inspection mode geometry adjustment
Use following procedure for all inspection modes (except
68.7kHz/85Hz)(Timing Table 1 - 8)
6.2.1 Adjust the Horizontal Size to 355mm.
6.2.2 Adjust the Horizontal Position to center position.
6.2.3 Adjust the Vertical Size to 265 mm.
6.2.4 Adjust the Vertical Position for correctly centered vertical video.
6.2.5 Adjust pincushion to get optimum vertical line.
6.2.6 Adjust trapezoid to get optimum vertical line.
6.2.7 Adjust balanced pincushion to get optimum vertical line.
6.2.8 Adjust the parallelogram to get optimum vertical line.
(6.2.5, 6.2.6, 6.2.7 and 6.2.8 may need some iteration)
6.2.9 Store the set result and exit OSD.