Adjustment Procedure - ViewSonic VA503b-1 Service Manual

5. Adjustment Procedure

5.1 ADJUSTMENT CONDITIONS AND PRECAUTIONS
1. Approximately 30 minutes should be allowed for warm up before proceeding.
2. Adjustments should be undertaken only on those necessary elements since most of them
have been carefully preset at the factory.
3. ESD protection is needed before adjustment.
5.2 MAIN ADJUSTMENTS
NO. FUNCTIONS
1. White Balance
2. Geometry
5.3 ALIGNMENT PROCEDURES
Approximately 30 minutes should be allowed for warm up before proceeding
White-Balance adjustment.
1. Adjust of White Balance
1.)How to do the Chroma-7120 MEM .Channel setting
A Reference to chroma 7120 user guide
B Use " SC" key and " NEXT" key to modify xyY value and use "ID" key to modify the
TEXT description Following is the procedure to do white-balance adjust
2.)Setting the color temp. You want
A MEM.CHANNEL9 ( 9300 color):
9300 color temp. parameter is Wx = 0.283 0.03;Wy = 0.298 0.03;
Y = 250 20 cd/m
B MEM.CHANNEL10 ( 6500 color):
6500 color temp. parameter is Wx = 0.313 0.03;Wy = 0.329 0.03;
Y = 260 20 cd/m
C MEM.CHANNEL 11 ( 5400 color):
5400 color temp. parameter is Wx = 0.335 0.03;Wy = 0.350 0.03;
Y = 250 20 cd/m
D MEM.CHANNEL10 ( SRGB color):
6500 color temp. parameter is Wx = 0.313 0.03;Wy = 0.329 0.03;
Y = 220 20 cd/m
ViewSonic Corporation
DESIGNATION
Function Key
Function Key
2 ,
2,
2,
2,
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