Hitachi 32HDL51M, Service Manual

Page: 28 / 80

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PLC1/AVC5-UB
Final Set Adjustment
1. Video color temperature adjustment. (HIGH)
-Preparation-1
(1) Set the output of signal generator to white raster. (RATIO:100%)
-Remarks
(1) Color temperature should be adjusted under the condition in which the screen
is the brightest, thus the initial value for adjustment is set its maximum.
(2) Adjustment is made by reducing brightness only.
Reduce a bright color for adjustment.
(3) Video color temperature & Adjustment No are the same, but addresses
in the memory are different, thus there’s no problem.
(2) Component signal
Video level: 0.714Vp-p
SYNC: 0.286Vp-p
Set-up level: 0V
(3) Apply white raster signal into COMPONENT input terminal of AVC jig.
(4) Set user control to Day mode. (Picture mode)
(5) Confirm that the mode is set as ‘Factory setting mode’
(6) Aspect: Video: EXPANDED
PC: FULL
-Preparation-2
(1) Set service adjustment menu to DEVICE ADJUST MODE-LCD .
(2) Set WBC to
0 .
-Adjustment
(1) Perform the following adjustment with the remote control.
(2) Set the CRT color analyzer (CA-100) at the center of the panel.
(3) Set color temperature to HIGH.
(4) Ensure that Adjustment of R/G/B DRIVE (HIGH) are all set as FF.
(5) After receiving White raster signal, step down the two (or one)
among Adjustment of R/G/B DRIVE (HIGH) and adjust the value shown below.
At least one of the data should be FF.
Specification
Video Color temperature (HIGH)
x = 0.268 0.005
y = 0.283 0.005