Sharp LC-60E77UN Service Manual page 37

8.2. LCD section adjustment 2 [LCD module adjustment] (LC-65E77UM/LC-C6577UM Only)
Adjustment item
1 Vertical luminance differ-
ence adjustment
(LCD module adjustment
item)
8.3. Video Signal adjustment Procedure
8.3.1 Signal 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:
8.3.2 Process mode
Adjustment point
Process mode
8.3.3 Composite N358 signal/tuner adjustment
Adjustment point
1 Setting
2 Automatic adjustment exe-
cution
8.3.4 Component 15K signal adjustment
Adjustment point
1 Setting
2 Automatic adjustment exe-
cution
Adjustment conditions
Visual check
Adjustment in the middle of
the panel
0.714Vp-p ± 0.02Vp-p (Pedestal to white level)
Y level: 0.714Vp-p± 0.02Vp-p (Pedestal to white level)
0.7Vp-p ± 0.02Vp-p
PB/PR level:
0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
Y level:
0.7Vp-p ± 0.02Vp-p
PB/PR level:
0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
RGB level:
Adjustment conditions
Adjustment conditions
N358 signal
US-10ch
Adjustment conditions
480i signal
LC-60E77UN/LC-65E77UM/LC-C6077UN/LC-C6577UM
Adjustment procedure
1. Enter the process mode using the process adjustment remote control.
2. Select [LCD LUMA ADJ] using the Channel ↑/↓ keys on the remote control.
3. Press the Enter key to check that the pattern for adjustment is displayed.
4. Make adjustment so that the vertical luminance difference in the middle of the
screen is minimized using the Volume +/- keys on the remote control.
5. If the status is optimized in step 4, press the Enter key to turn off the pattern.
[Criterion]
No difference must be observable when visually checked.
CAUTION: The adjustment sequence is as follows:
Common Adjustment → Aging → Common adjustment → W/B adjust-
ment (top) → Vertical luminance difference adjustment (bottom).
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 Video 3 video input.
•Send the in-house signal (use US-10ch) to TUNER.
[Video input signal]
75% Color saturation
100% white
Point the cursor to [ N358 ALL ADJ(INPUT3)] and press the [Enter] key.
The adjustment is complete when [
Adjustment procedure
•Send the 100% color bar signal to the Video 1 component input.
100% Color saturation
100% white
Point the cursor to [ COMP15K ADJ(INPUT1)] and press the [Enter] key.
The adjustment is complete when [
5 – 12
[US-10CH]
100% white
N358 ALL ADJ(INPUT3) OK] is displayed.
480i
100% color bar
0% black
COMP15K ADJ(INPUT1) OK] is displayed.