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1. ALGNMENT PROCEDURE
A. Conditions
A-1. Equipments
Signal generator: A chroma-2250 signal generator to be provided as standard signal source.
Color analyzer: A minolta CA-100 color analyzer to be provided as standard color analyzer.
A-2. Presetting
Preset all of the VRs on main board to it's mechanical center, and set FBT's G2 control VR to it's
minimum position before to proceed al ignment.
CRT faces to east direction, connects monitor and generator, warm up 30 minut es at least before to
proceed alignment.
A-3. Magnetic Environment
Unless otherwise specified, all performance tests are performed in a controlled magnetic environment,
the magnitude of the horizontal magnetic fi eld component in any direction will be less than 1000
gamma, the magnitude of t he vertical magnetic field component is defined in table 1 of engineering
specification.
B. Functions Alignment
B-1. Power Adj ust
Select timing #7 (VESA 48K 1024x768)with crosshatch pattern, adjust both horizontal and vertical
size cont rols to get display size within 262x196±1mm.
Adjust VR901 to get a DC 13.0±0.1V to be obtained on plus of C510.
Double check and make sure test points are within speci fications as defined i n following
B-2. Adjust
Select timing #6 (VESA 64K 1280x1024)with crosshatch pattern, adjust both horizontal and vertical
OSD's size control to get display size within 262x196±1mm.
Adjust VR501 to get a DC 145±0.3 V to be obtained on FBT's pin3.
Double check and make sure test points are within speci fications as defined i n following
Timing
#1
#6
VC930 (+) = 7.5
0.5 V
VC942 (+) = 7.5
0.3 V
VC943 (-) = -12
1 V
VC946 (+) = 60
2 V
VC947 (+) = 73
2 V
Mode
Volt age
31.5 KHz
66.7V
68.677 KHz
145V
DC
DC
DC
DC
DC
Tol erance
±3%
±3%
3
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