LG DU-52SZ51D, Руководство по обслуживанию

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ADJUSTMENT INSTRUCTIONS
19. Main/Sub Contrast Adjustment
Adjust which it sees last prosecuting attorney time the screen
contrast difference.
Basically the letter does with the fact that the character and
distinction become.
19-1. Preparation for Adjustment
(1) Receive signal(RF 06Ch.) on the Main/Sub screen in twin
picture mode.
(2) Set Picture control to “CLEAR”.
19-2. Adjustment
(1) Main Screen Adjustment
1) Select the VPX3226 by pressing “ADJ” key on the
Service Remote Control.
2) Select Contrast(m) in adjustment menu using CH +/-
keys and adjust using VOL +/- keys. (Initial data: 32)
(2) Sub Screen Adjustment
1) Select the VPX3226 by pressing “ADJ” key on the
Service Remote Control.
2) Select Contrast(s) of adjustment item using CH +/-keys
and adjust using VOL +/- keys. (Initial data: 32)
19-3. Overseas Factory Production
Contrast Adjustment Method
Adjust which it sees last prosecuting attorney time the screen
contrast difference.
(1) Do the same method as above method.
(2) Make the as same below pattern in VHF 6CH using RF
MODULATOR and PATTERN GENERATOR.
(3) Adjust to become dividing 15 and 16 Gray of Main/Sub
screen .
(4) Adjust to be identical Main/Sub contrast of MAX 16Gray.
(5) Make the adjustment pattern as below.
<16Gray Scale/H Pattern>
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