Sharp LC-37AD1E Service Manual page 28

LC-37AD1E
(4) SECAM signal adjustment
Adjustment items
1 Setup
2 MAIN SECAM Y
LEVEL adjustment
3 MAIN SECAM COLOR
GAIN adjustment
4 MAIN SECAM Cr
LEVEL adjustment
(5) N358 signal adjustment
Adjustment items
1 Setup
2 MAIN N358 Y
LEVEL
adjustment
3 MAIN N358 COLOR
GAIN adjustment
4 MAIN N358 Cr LEVEL
adjustment
5 MAIN N358 TINT
adjustment
Adjustment conditions
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Adjustment conditions
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28
Adjustment procedures
1. Set colour system to SECAM.
2. Select SECAM source.
100% colour bar signal including 100% white, such
as split field colour bar.
Adjust pin (1) of P801 to 0.70 ±0.025 Vp-p.
Adjust pin (3) of P801 to
0.53 ±0.025 Vp-p.
Adjust pin (5) of P801 to
0.53 ±0.025 Vp-p.
Adjustment procedures
1. Set colour system to N358.
2. Select N358 source.
100% SMPTE colour bar or similar colour bar
signal including 100% white.
Adjust pin (1) of P801 to 0.70 ±0.025 Vp-p.
Adjust pin (3) of P801 to
0.53 ±0.025 Vp-p.
Adjust pin (5) of P801 to
0.53 ±0.025 Vp-p.
Adjust pin (3) of P801 so that waveform becomes as
illustrated below:
0.53V
0.53V
0.53V
0.53V
Smoothed