Instrument Test - Toshiba 13A21 Service Manual

2.2

Instrument Test

2.2.1. Luminance test.
Select HDMI 1280x720 @ 60Hz input: (Contrast, Brightness =default)
2.2.1.1 White balance.
a. WARM:
x = 0.313 ± 0.01.
b. MEDIUM:
x = 0.289 ± 0.01.
c. COOL:
x = 0.270 ± 0.01.
2.2.1.2 Adjust contrast & brightness to 100%, the Y > 400cd/m
2.2.1.3 In HDMI mode with contrast and brightness =default) and the 32 grays scale have 2 bright scale saturation is
acceptable.
When Contrast 100% and with 32grays need > 4 level saturation.
In video mode (Color Stream HD, Composite, S-Video, TV, DVI-HDTV mode):
When Contrast 100% and with 32grays need > 4 level saturation.
2.2.1.4 White uniformity: (9 point max.- 9 point min.) Meter normal to Screen.
a. Specification: Δx and Δy should be less than ΔWx: 0.016, ΔWy:0.020
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2.2.2. Picture performance test.
2.2.2.1 Video performance test:
Apply pattern: Color bars (COL_SMPTE), Crosshatch, Multi burst, Black & White, Gray scale.
Color bars (COL_SMPTE).
Black & White.
y = 0.329 ± 0.01.
y = 0.289 ± 0.01.
y = 0.270 ± 0.01.
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Multi burst.
FIG.18
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