LG RD-JT51, Service Manual

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Case x1<x0 & y1 < y0 :
x0 =.281 y0 =.311
x =.271
y =.291
inc. Pb
x0 =.281 y0 =.311
x =.281
y =.301
dy=.01
1/2dx=0.005
inc. Pb
x0 =.281 y0 =.311
x =.286
y =.306
inc. Pr
x =.281 y =.311
x0 =.281 y0 =.311
x =.261
y =.301
dec. Pb
x0 =.281 y0 =.311
x =.271
y =.311
dx=.01
1/2dx=0.005
inc. Pb
x0 =.281 y0 =.311
x =.276
y =.316
dec. Pr
x =.281 y =.311
Case x1>x0 & y1 < y0 :
x0 =.281 y0 =.311
x =.291
y =.291
inc. Pr
x0 =.281 y0 =.311
x =.281
y =.301
dy=.01
1/2dx=0.005
inc. Pb
x0 =.281 y0 =.311
x =.286
y =.306
inc. Pr
x =.281 y =.311
x0 =.281 y0 =.311
x =.301
y =.301
inc. Pr
x0 =.281 y0 =.311
x =.291 y =.311
dx=.01
1/2dx=0.005
dec. Pb
x0 =.281 y0 =.311
x =.286
y =.306
inc. Pr
x =.281 y =.311
Case x1<x0 & y1>y0
x0 =.281 y0 =.311
x =.271
y =.331
dec. Pr
x0 =.281 y0 =.311
x =.281
y =.321
dy=.01
1/2dy=0.005
dec. Pb
x0 =.281 y0 =.311
x =.276
y =.316
dec. Pr
x =.281 y =.311
x0 =.281 y0 =.311
x =.261
y =.321
dec. Pr
x0 =.281 y0 =.311
x =.271
y =.311
dx=.01
1/2dx=0.005
inc. Pb
x0 =.281 y0 =.311
x =.276
y =.316
dec. Pr
x =.281 y =.311
II. Gray Level:
1. Change Timing and pattern of pattern generator:
Timing: 480P (H: 31.54 KHz, V: 60.08 Hz)
Pattern: gray 32 (or gray16 only for over-scan)
2. Adjust the Brightness of AD9883 (RGB) to let the black level of the gray 32 to
just distinguish. Use Lux meter to measure the white level of the gray 32.
Adjust the contrast value of AD9883 (RGB) to let the light output to just max.
3. Check the 32 levels of gray. All steps must appear,
III. Saturation Level:
1. Change Timing and pattern of pattern generator:
Timing: 480 (H: 31.54 KHz, V: 60.08 Hz)
Pattern: 100% blue