D1-Brt - Sharp LC-20AV7U Service Manual

3. Sub-Brightness Adjustment
Purpose: To get proper brightness.
Symptom of Misadjustment: If Sub-Brightness is
incorrect, proper brightness cannot be obtained by
adjusting the Brightness Control.
Adj. Point
Ant. input, Any channel,
SMPTE pattern,
[MENU]
[RF/INPUT1]: CG-931 (KENWOOD),
button
[INPUT2]: CG-931 (KENWOOD),
w/SETUP 7.5IRE
M. EQ.
Pattern
Generator
Figure
White
A position
B position
1. Enter the Service mode. Then input above signal.
2. [RF/INPUT1]
Press [MENU] button on the service remote
control unit and press [1] on the service remote
control (selecting "BRT" mode).
[INPUT2]
Press [MENU] button on the service remote
control unit and press [3] on the service remote
control (selecting "D1-BRT" mode).
3. Make sure that contrast and brightness controls
are set to initial position.
4. Confirm "C" position was beginning to bright.
5. If "C" position was beginning to bright, no need to
adjust.
6. If "C" position is not available or to be highly
brightness, then adjust IIC-BUS dada.
[RF/INPUT1]: BRT
[INPUT2]: D1-BRT
7. Turn the power off and on again. (Main power
button on the TV unit.)
Input
Spec.
See below
Black
C position
5-3 A7144EA