Sony SDM-N50R Service Manual page 19

(4) Make the signal 30IRE all white to check that it is within the
specification.
(5) Adjust R/B_USER_BKG to become within the specification when
(4) deviates the specification.
(6) Input a grayscale and perform picture quality confirmation.
(7) Perform color save ( select C with ALT+M ).
Spec: 6500°K 80IRE (x, y) = (0.314, 0.324)
Within 3JND
6500°K 30IRE (x, y) = (0.295, 0.305)
Within 4JND
Make adjustment up to ±0.002.
Note:
3. Adjustment of 5000°K
(1) Confirm every R/G/B_USER_BKG are initialized value.
(2) Receive MODE 15 (1024X768 60Hz) 80IRE.
Set COLOR to 5000°K. (COLOR_INDEX=3)
(3) Make adjustment with R/G_USR_DRV to set the chromaticity within the
specification.
y adjustment Make adjustment with B_USR_DRV.
(Also x value changes simultaneous)
B_USR_DRV UP Values x and y decrease.
B_USR_DRV DOWN Values x and y increase.
x adjustment Make adjustment with R_USR_DRV.
R_USR_DRV UP Value y increases.
R_USR_DRV DOWN Value y decreases.
Adjust again and bring down G_USR_DRV 10 STEP to
become within the specification ; however, in case of
adjustment range of y value become deficientlly and when
B_USR_DRV=255.
(4) Make the signal 30IRE all white to check that it is within the
specification.
(5) Adjust R/B_USER_BKG to become within the specification
when (4) deviates the specification.
(6) Input a grayscale and perform picture quality confirmation.
(7) Perform color save ( select C with ALT+M ).
Spec: 5000°K 80IRE (x, y) = (0.345, 0.352)
Within 3JND
5000°K 30IRE (x, y) = (0.322, 0.332)
Within 4JND
Note:Make adjustment up to ±0.002.position.
SDM-N50R(E) 2-3