Adjustment Procedure - Sharp LC-40LE820UN Service Manual

7. Microprocessor software writing
7.1. Main microprocessor/monitor microprocessor software writing (Main PWB: QPWBXF452WJZZ)
Adjustment item
1 Main microprocessor/moni-
tor microprocessor soft-
ware writing
<Main PWB>
7.2. Model/inch discrimination writing (Main PWB: QPWBXF452WJZZ)
• When writing the sub microprocessor software, the model data is configured with the software from the USB memory mounted to the checker.
• Reference and setting change are enabled through the process menu and RS-232C communication.
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 adjustment works at only the default View Mode.
Before adjustment, confirm the View Mode is set as follows.
Adjustment Type Default View Mode
Composite/Tuner S.Stretch
Comp15k S.Stretch
Comp33k Stretch
Analog RGB Stretch
Adjustment conditions
Software Version Up 1. Insert a USB memory for the main/monitor microprocessor into the service con-
nector.
2. Supply AC power and write the main software to IC8453 and the monitor micro-
File version check processor software to IC2002.
USB memory check 3. Check that writing is normally completed and turn off the power.
CAUTION: When the USB memory is not inserted or reading error occurs, nothing
* When IC is failure Please exchange to another PWB unit when IC8453 (NAND Flash) is failure.
(Because the software can't be written with USB memory, when the new IC is
exchanged from broken IC)
Adjustment conditions
Adjustment in the center 1. Enter the process mode using the process adjustment remote control.
position of the panel
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
[Adjustment position]

Adjustment procedure

is written. (The former models have read the main software from the
writing jig. However, this model reads the main/monitor software from
the USB memory.)
Adjustment procedure
changed by the active backlight).
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LC-40/46/52/60LE820UN
/ keys on the remote control.
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