Signal Adjustment - Sharp LC-60LE810UN Service Manual

7. Microcomputer software writing
7.1. Main microcomputer/monitor microcomputer software writing (Main PWB: QPWBXF452WJZZ)
Adjustment item
1 Main microcomputer/moni-
tor microcomputer software
writing
<Main PWB>
7.2. Model/inch discrimination writing (Main PWB: QPWBXF452WJZZ)
• Refer to the production precautions.

8. Signal adjustment

8.1. LCD section adjustment [LCD module adjustment]
Adjustment item
1 Opposite bias adjustment
(LCD module adjustment
item)
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
Adjustment conditions
Checker process
File version check
USB memory check
Adjustment conditions
Adjustment in the center
position of the panel
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
LC-40/46/52/60LE810UN (1st Edition)
Adjustment procedure
1. Connect the specified writing jig to SC8452 (TL8461-8475) via the checker.
2. Connect the USB memory to J3301 (TL3309-3312) or J3302 (TL3332-3335)
via the checker.
3. Apply the specified voltage to the PWB and perform boot from the jig.
4. Send the software writing start command via RS232C.
5. Send the writing status check command and confirm the response of OK. Then
turn off the power.
CAUTION: When the USB memory is not inserted or reading error occurs, nothing
is written.
Adjustment procedure
1. Enter the process mode using the process adjustment remote control.
2. Select [VCOM ADJ] using the Channel
3. Press the Enter key to check that the pattern for adjustment is displayed.
4. Make adjustment so that the flicker located in the center of the screen is mini-
mized using the Volume +/- keys on the remote control.
5. If the optimum condition is obtained in step 4, press the Enter key to turn off the
pattern.
CAUTION: * Make adjustment with no ANT signal (since the brightness is
changed by the active backlight).
[Adjustment position]
1/4
1/2
1/2
Adjustment procedure
Enter the process adjustment mode using the process adjustment remote control.
5 – 9
/ keys on the remote control.
3/4