Special Features; Writing The Microprocessor Software; Signal Adjustment; Lcd Section Adjustment - Sharp LC-52LE640U Service Manual

6. Special features

* STANDBY CAUSE (Page 1/28)
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 28/28)
Storage of EEP adjustment value
* EEP RECOVER (Page 28/28)
Retrieval of EEP adjustment value from storage area

7. Writing the microprocessor software

7.1. Writing the main microprocessor software and monitor microprocessor software
(Main PWB: QPWBXF733WJN2)
Adjustment item
1 Writing the main micropro-
cessor software and moni-
tor microprocessor software
<Main PWB>

8. Signal adjustment

8.1. LCD section adjustment [LCD module adjustment]
Adjustment item
1 Opposite bias adjustment
(LCD module adjustment
item)
Adjustment conditions
Checker process
Checking the file version
Checking the USB memory
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-
5) If the optimum condition is obtained in step 4, press the Enter key to turn off the
CAUTION: * Make adjustment with no ANT signal (since the brightness is changed
[Adjustment position]
LC-52/60/70LE640U,C6400U (1st Edition)
Adjustment procedure
1) Using the checker, connect the specified writing tool to the SC8452 (TL8461 -
TL8475).
2) Using the checker, connect the USB memory to the J9502 (TL9503, TL9506 -
9508).
3) Apply the specified voltage to the PWB and boot it up with the tool connected.
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
mized using the Volume +/- keys on the remote control.
pattern.
by the active backlight).
1/2
1/2
5 – 10
/ keys on the remote control.
1/2 1/2