Friday, January 22, 2016

SHARP LC-40D78UN Service mode - firmware update - Service mode adjustments - LCD Television Repair and service - Tips manual

Category: LCD Television Repair and Service 

Contents of this article 

  • Service mode access 
  • Software update 
  • Service adjustments 


The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is required due to part replacement, make an adjustment according to the following procedure.
After replacement of any PWB unit and/or IC for repair, please note the following.
# When replacing the following units, make sure to prepare the new units loaded with updated software.
# When replacing the LCD control PWB, perform the VCOM adjustment.
Upgrading of each microprocessor software
CAUTION: Never “POWER OFF” the unit when software upgrade is ongoing.
Otherwise the system may be damaged beyond recovery.
Software version upgrade
The model employs the following software.
# Main software
# Monitor microprocessor software
The main software can be upgraded by using a general-purpose USB Memory.
The monitor microprocessor software can be upgraded with E8 Emulator Debugger.
The followings are the procedures for upgrading, explained separately for the main software, monitor microprocessor software.
Main software version upgrade
Get ready before you start
# USB Memory of 128MB or higher capacity.
# PC running on Windows 98/98SE/ME/2000/XP operating system.
# USB Memory reader/writer or PC with a USB port.
# The file system of a USB memory is FAT. (FAT32 is not applied)
# Use the USB memory without other functions. (Lock and memory reader...etc)
To upgrade the main software, it is necessary to get ready the USB Memory for version upgrade before you start.
Follow the steps below and create the USB Memory for version upgrade.
1. Copy the file BFF for version upgrade to the root directory (folder) of the USB Memory.
NOTE: In the USB Memory drive, do not store other folders or unrelated files, or more than one file for version upgrade.
Now the USB Memory for version upgrade is ready.
How to upgrade the software
1. Unplug the AC cord.
2. Insert the USB Memory for version upgrade (prepared as above) into the service socket located Right side of Main Board terminals, under INPUT3
3. Plug in the AC cord with power button pressed down after 5 seconds, releases the power button.
4. After the unit startup, the system upgrade screen appears within 10-40 seconds.
5. Even a single failure in the process will trigger the upgrade failure screen.
NOTE: In the event of a failure, repeat the upgrade process. If the process repeatedly fails, it is likely that the hardware need fixing.
6. Upon completion of the whole process, the upgrade success screen as shown below appears. You can check the new software version on this
screen. The version information appears after the upgrade is complete.
7. Unplug the AC cord and remove the USB Memory for version upgrade.
8. Now the software version upgrade is complete.
NOTE: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the main
software version information.
Monitor microprocessor software version upgrade
1) Download “E8 Emulator” from Renesas Web site and install it. downloadId=C2003512
Product Name: E8 Emulator Software V.2.11 Release 01 for M16C, H8 Upgrade (Debugger package version) Oct.24.08
2) Connect E8 Emulator Debugger to PC from USB port. (Driver of “E8 Emulator Debugger” found in CD-ROM.)
3) Connect E8 writer to LCD’s 20PIN port.
4) Run “High Performance Embedded Workshop” in start menu.
5) Confirm  comes up and click “OK”.
If second time, you can select “open a recent project work”.Choose “OK”.
6) In the next page input information and click “OK”.
7) Select R8C E8 entry click “NEXT”
8) click COMPLETE”.
9) Click “OK”.
10)Select entries and click “OK”.
11)Click NEXT
12)Click  COMPLETE
13) Click “Debug Settings”.
14)Select “S-Record” and click “Add”.
15)Click “Browse” and specify the location of mot-file.
16)Confirm the file name of mot-file appears in the dialog entry and click “OK”.
17)From main menu, continuously click “Debug”, “Download Modules” and the mot-file location, then writing process starts.
18)Confirm the dialog-box below appears. It means the writing process completed successfully.
Then shut down “High Performance Embedded Workshop”, unplug 20PIN connector, and E8 firmware updating finish.
Entering and exiting the adjustment process mode
1) Before entering the adjustment process mode, the AV position RESET in the video adjustment menu.
2) While holding down the “VOL (–)” and “INPUT” keys at a time, plug in the AC cord of the main unit to turn on the power.
The letter “<K>” appears on the screen.

3) Next, hold down the “VOL (–)” and “CH ( DOWN )” keys at a time.
(The “VOL (–)” and “CH (DOWN )” keys should be pressed and held until the display appears.)
Multiple lines of white characters appearing on the display indicate that the unit is now in the adjustment process mode.
When you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure.
4) To exit the adjustment process mode after the adjustment is done, unplug the AC cord from the outlet to make a forced shutdown. (When the power was turned off with the remote controller, once unplug the AC cord and plug it again. In this case, wait 10 seconds or so before plugging.)
CAUTION: Use due care in handling the information described here lest your users should know how to enter the adjustment process mode. If the settings are tampered in this mode, unrecoverable system damage may result.
Remote controller key operation in adjustment process mode
Basic operation
Selecting the receiving channels
# Using the CH ( UP )/( DOWN  ) keys, turn up and down an actual receiving channel.
Snap press: The channels are turned up and down one by one.
Continuous press: The next receivable channel is searched.
# Various adjustments: The items are adjusted one by one by selecting on the menu screen and using the cursor key and VOL (+) (–) keys.
# With the CURSOR UP/DOWN keys, select an adjustment item.
# Using the MENU key, the adjustment items are selected one after another. When the bottom item on a page is already selected and the MENU key is pressed, the top item on the next page is selected.
# If any item on a page is selected and the preset key is pressed, the top item on the next page is selected.
Page1 - Page2 - Page3 - Page7 - Page9 - Page10 ...
# If any item on a page is selected and the manual memory key is pressed, the top item on the same page is selected.
# Using the CURSOR LEFT/RIGHT keys and VOL (+) (–) keys, turn up and down the setting of a selected item.
Hierarchical shift
# When the ENTER key is pressed on any item other than I2C DATA on page 2, the setting page of the item shows up.
# To quit the setting page, press the front screen key.
Initialization of factory settings
Making factory settings
Use the adjustment remote controller for the factory settings.
Press the ENTER key at the INDUSTRY INT on Adjustment Process Page1 which is selected “YES”.
Sever seconds later, “SETTING COMPLETE” “TV VER *.**” appears at the center of the screen.
If background of screen is green, the settings are complete.