Philips V30 - Manual (Page 18)

Electrical Instructions X
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18
1. General point
==========
OSD MENU :
LANGUAGE
ZOOM
ADJUST HORIZONTAL
ADJUST VERTICAL
ADJUST SHAPE
ADJUST COLOR
RESET TO FACTORY SETTING
EXTRA CONTROLS
MODEL SELECT
CLOSE MAIN CONTROLS
2. Pre warm-up
========
1.1 During alignment and measurement supply a distortion
free AC-mains voltage to the apparatus via an isolating
transformer with a low internal resistance.
1.2 All voltages have to be measured or applied with respect
to ground, unless otherwise stated. Note: Not all heatsinks
are grounded, avoid using heatsinks as ground.
1.3 The term "Linear RGB" is meant the 0.7 Vpp video with
separate SYNC ( TTL Level ). Reference factory preset
mode timings (format of pattern generator CHROMA-2135)
are shown in TABLE 1 to TABLE 8. Preload timing
TABLE 9 to TABLE 22.
1.4 Any external voltage source should have low internal
impedance.
1.5 The alignment has to be done in room temperature 25 5C.
1.6 Digit control buttons for
- POSITION
- SIZE
- POSITION
- SIZE
- ADJUST SIDE CURVE
- PINCUSHION
- BALANCE
- ADJUST SIDE ANGLES
- TRAPEZOID
- PARALLELOGRAM
- ROTATE IMAGE
- 3colour temperatures (9300K, 6500K, SRGB)
- 1 user preset independent RGB adjustment
- ADJUST MOIR
- HORIZONTAL
- VERTICAL
- DEGAUSSING
2.1 Align in pre-warmed condition at least 30 minutes during
Manufacturing.
==
3. Main chassis alignment
==================
.
4. General conditions for aging and alignment
================================
3.1 Power supply adjustment :
All supply voltages were fixed and adjustment is
unnecessary. (Check the voltages on Chassis line)
3.2 Apply a VGA 31.5KHz/480 lines cross-hatch signal.
3.2.1 Adjust BPLUS of factory setting to obtain the
anode voltage 25.0KV+/-1KVat zero beam current
3.3 Monitor the following auxiliary voltages.
+5 source across 7153 Pin out and GND +5V 0.15 VDC
+6 source across C2154 +6.2V 0.2 VDC
+12 source across C2155 +12.6V 0.4 VDC
-12 source across C2156 -12.5V 0.4 VDC
+82 source across C2153 +82.0V 1.5 VDC
+190 source across C2152 ( + to Gnd) +190.5V 3.0 VDC
-96 source across C2630 -96V 6.0 VDC
4.1 Aging/burn-in:Use low mains AC supply (90Vac) for monitor
first power on test.Pre-adjust the Focus till cross hatch
pattern can be clearly visible then enter the agingmode.
(Press both Up and Down keys, and then switch-on the
monitor with signal cable disconnected.)
4.2 During all alignments, supply a distortion free AC mains
voltage to the monitor set via an isolating transformer with
low internal impedance.
4.3 All measurements are carried out at nominal mains voltage,
unless otherwise stated.
4.4 Align in pre-warmed condition, at least 30 minutes warm-up
with nominal light output.
4.5 Purity, geometry and subsequent alignments should be
carried out in a magnetic cage with correct magnetic field.
Northern Hemisphere: H = 0, V = 450 mG, Z = 0
Southern Hemisphere: H = 0, V = -500 mG, Z = 0
Equatorial Support
: H = 0, V = 0 mG, Z = 0
4.6 All voltages are to be measured or applied with respect to
ground , unless otherwise stated.Attention : Not all
heatsinks are GND, avoid using heatsinks as ground.
4.7 The white balance and purity has to be adjusted in dully
lighted room.
4.8 All alignments have to be done in a room with a temperature
Of 25 10 C.
4. Alignment of Vg2, cut-off point, white tracking
================================ =
In factory, alignments are done via I C on the I/F cable
DDC bus , but the set can also be manually aligned.
Enter factory mode by pressing both Up and Down
keys while power-on. Select factory.
====
5.1 EEPROM data has to be pre-set according to software
approval sheets, sheet-139,
sheet-140: (loaded beforehand with average values of
mode pre-set data and mode pre-set selection bytes.) The
following table is for reference only.Optimum values should
be determined by Factory(ME) for every production batch.
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