Sharp LC-90LE657U, Service Manual

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LC-90LE657U
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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.)
8.2.2 Process mode
8.2.3 Composite N358 signal/tuner adjustment
8.2.4 Component 33K signal adjustment
•
Composite signal: 0.714Vp-p
±
0.02Vp-p (Pedestal to white)
•
15K component signal: Y level: 0.714Vp-p
±
0.02Vp-p (Pedestal to white)
PB/PR level: 0.7Vp-p
±
0.02Vp-p
•
33K component signal: Y level: 0.7Vp-p
±
0.02Vp-p (Pedestal to white)
PB/PR level: 0.7Vp-p
±
0.02Vp-p
•
Analog RGB: RGB level: 0.7Vp-p
±
0.02Vp-p (Pedestal to white)
Adjustment point Adjustment conditions Adjustment procedure
Process mode Enter the process adjustment mode using the process adjustment remote control.
Adjustment point Adjustment conditions Adjustment procedure
1 Setting N358 signal
US-10ch • Send the N358 color bar (color saturation: 75%) signal to the composite input.
• Send the in-house signal (use US-10ch) to TUNER.
2 Automatic adjustment exe-
cution 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 point Adjustment conditions Adjustment procedure
1 Setting 1080i signal
•
Send the 100% color bar signal to the component input.
2 Automatic adjustment exe-
cution 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.
[Video input signal] [In-house US-10ch]
100% white 100% white 0% black
Color saturation: 75%
100% white 0% black
1080i
100% color bar
Color saturation: 100%