Electrical Instructions
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18
1. General point
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OSD MENU:
LANGUAGE
ZOOM
ADJUST HORIZONTAL
ADJUST VERTICAL
ADJUST SHAPE
ADJUST COLOR
RESET TO FACTORYSETTING
EXTRACONTROLS
MODELSELECT
CLOSE MAINCONTROLS
2. Pre warm-up
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1.1 Duringalignment and measurementsupply a distortion
free AC-mainsvoltage tothe apparatus via an isolating
transformer witha lowinternal resistance.
1.2 Allvoltages have tobe measuredor appliedwith respect
to ground,unless otherwisestated. Note: Not all heatsinks
are grounded,avoid using heatsinks asground.
1.3 The term"Linear RGB" ismeant the0.7 Vpp video with
separate SYNC( TTLLevel ). Reference factory preset
mode timings(format ofpattern generator CHROMA-2135)
are shownin TABLE 1to TABLE 8. Preloadtiming
TABLE 9 toTABLE22.
1.4 Anyexternal voltage sourceshould havelow internal
impedance.
1.5 Thealignment has tobe donein room temperature 25 5C.
1.6 Digitcontrol buttons for
- POSITION
- SIZE
- POSITION
- SIZE
- ADJUST SIDECURVE
- PINCUSHION
- BALANCE
- ADJUST SIDEANGLES
- TRAPEZOID
- PARALLELOGRAM
- ROTATE IMAGE
- 3colour temperatures (9300K,6500K, SRGB)
- 1 user presetindependent RGBadjustment
- ADJUST MOIR
- HORIZONTAL
- VERTICAL
- DEGAUSSING
2.1 Alignin pre-warmed conditionat least30 minutesduring
Manufacturing.
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3. Main chassisalignment
==================
.
4. General conditionsfor agingand alignment
================================
3.1 Powersupply adjustment :
All supplyvoltages werefixed and adjustmentis
unnecessary. (Check thevoltages onChassis line)
3.2 Applya VGA31.5KHz/480 linescross-hatch signal.
3.2.1 Adjust BPLUSof factory settingto obtainthe
anode voltage25.0KV+/-1KVatzero beamcurrent
3.3 Monitor thefollowing auxiliary voltages.
+5 source across7153 Pinout and GND +5V 0.15 VDC
+6 source acrossC2154 +6.2V 0.2VDC
+12 sourceacross 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 acrossC2152(+toGnd) +190.5V 3.0 VDC
-96 source across C2630 -96V 6.0VDC
4.1 Aging/burn-in:Uselow mains ACsupply (90Vac) formonitor
first poweron test.Pre-adjustthe Focus tillcross hatch
pattern canbe clearlyvisible then enterthe agingmode.
(Press bothUp andDown keys, andthen switch-onthe
monitor withsignal cabledisconnected.)
4.2 Duringall alignments, supplya distortionfree ACmains
voltage tothe monitorset via anisolating transformerwith
low internalimpedance.
4.3 Allmeasurements are carriedout atnominal mainsvoltage,
unless otherwisestated.
4.4 Alignin pre-warmed condition,at least30 minuteswarm-up
with nominallight output.
4.5 Purity,geometry andsubsequent alignments shouldbe
carried outin amagnetic cage withcorrect magneticfield.
Northern Hemisphere:H=0, V= 450mG,Z=0
Southern Hemisphere:H=0, V=-500mG,Z=0
Equatorial Support :H=0,V= 0mG,Z=0
4.6 Allvoltages are tobe measuredor appliedwith respect to
ground ,unless otherwisestated.Attention : Notall
heatsinks areGND, avoidusing heatsinks asground.
4.7 Thewhite balance andpurity hasto beadjusted in dully
lighted room.
4.8 Allalignments have tobe donein aroom with atemperature
Of 25 10 C.
4. Alignment ofVg2, cut-off point,white tracking
================================ =
In factory, alignments are donevia I C onthe I/F cable
DDC bus, but theset can also bemanually aligned.
Enter factorymode bypressing both Upand Down
keys whilepower-on. Select factory.
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5.1 EEPROMdata has tobe pre-setaccording tosoftware
approval sheets,sheet-139,
sheet-140: (loadedbeforehand withaverage values of
mode pre-setdata and mode pre-setselection bytes.) The
following tableis forreference only.Optimum values should
be determinedby Factory(ME)for every production batch.
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