Special Features; Signal Adjustment - Sharp LC-32LE700UN Service Manual

LC-32/40/46/52LE700UN
*2 Details of P1.10 (ERROR STANDBY CAUSE)
11 Prolonged unspecified-signal input in PC mode
17 Temperature error
1A Monitor trouble detected
22 LCD controller Rom error

6. Special features

* STANDBY CAUSE (Page 1/40)
Display of a cause (code) of the last standby
The cause of the last standby is recorded in EEPROM whenever possible.
Checking this code will be useful in finding a problem when you repair the troubled set.
* EEP SAVE (Page 40/40)
Storage of EEP adjustment value
* EEP RECOVER (Page 40/40)
Retrieval of EEP adjustment value from storage area
7. Microcomputer software writing
7.1. Main microcomputer/monitor microcomputer software writing (Main PWB: QPWBXF282WJZZ)
Adjustment item
1 Main microcomputer/moni-
tor microcomputer software
writing
<Main PWB>
7.2. Model/inch discrimination writing (Main PWB: QPWBXF282WJZZ)
• When writing the sub microcomputer 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)
Adjustment conditions
Software Version Up 1. Insert a USB memory for the main/monitor microcomputer into the service con-
nector.
2. Supply AC power and write the main software to IC8453 and the monitor micro-
File version check computer 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.
2. Select [VCOM ADJ] using the Channel ↑, ↓ keys on the remote control.
position of the panel
(Except for 3. Press the Enter key to check that the pattern for adjustment is displayed.
LC-32LE700UM) 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 status is optimized in step 4, press the Enter key to turn off the pattern.
CAUTION: * Make adjustment without ANT signal (since the active backlight
[Adjustment position]
in the cause of continuous "out of range", PC input mode
in the cause of abnormal temperature
in the cause of abnormal monitor mode
in the cause of software abnormality of LCD controller
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
changes the brightness).
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