Sharp LC-90LE657U Service Manual page 30

LC-90LE657U
8.2. Image adjustment
8.2.1 Device check
Before adjustment, check that the adjustment jig and signal source are set for Sharp LCD US.
Signal generator level adjustment check (Adjust to the standard value level.)
• Composite signal:
• 15K component signal:
• 33K component signal:
• Analog RGB:
8.2.2 Process mode
Adjustment point
Process mode
8.2.3 Composite N358 signal/tuner adjustment
Adjustment point
1 Setting
2 Automatic adjustment exe-
cution
8.2.4 Component 33K signal adjustment
Adjustment point
1 Setting
2 Automatic adjustment exe-
cution
0.714Vp-p ± 0.02Vp-p (Pedestal to white)
Y level: 0.714Vp-p± 0.02Vp-p (Pedestal to white)
0.7Vp-p ± 0.02Vp-p
PB/PR level:
0.7Vp-p ± 0.02Vp-p (Pedestal to white)
Y level:
0.7Vp-p ± 0.02Vp-p
PB/PR level:
0.7Vp-p ± 0.02Vp-p (Pedestal to white)
RGB level:
Adjustment conditions
Adjustment conditions
N358 signal
US-10ch
Adjustment conditions
1080i signal
Adjustment procedure
Enter the process adjustment mode using the process adjustment remote control.
Adjustment procedure
• Send the N358 color bar (color saturation: 75%) signal to the composite input.
• Send the in-house signal (use US-10ch) to TUNER.
[Video input signal]
Color saturation: 75%
100% white
Point the cursor to [ N358 ALL ADJ(INPUT2)] and press the [Enter] key.
The adjustment is complete when [ N358 ALL ADJ(INPUT2) OK] is displayed.
Adjustment procedure
• Send the 100% color bar signal to the component input.
Color saturation: 100%
100% white
Point the cursor to [ COMP33K ADJ(INPUT1)] and press the [Enter] key.
The adjustment is complete when [ COMP33K ADJ(INPUT1) OK] is displayed.
"Compornent 15K" Adjustment is internally handled automatically.
AUTO CLANP 1, parameters are copied from the 33K.
5 – 12
[In-house US-10ch]
0% black 100% white
1080i
100% color bar
0% black