Friday, January 01, 2016

SHARP LC-32D44E Service mode software update procedure and factory initialization - Television repair

Category: LCD Television repair 

Contents of this article 

  • Service mode
  • Software update 
  • Hotel mode
  • Factory Initialization 


SHARP LC-32D44E 

Firmware Upgrade Procedure
There are 3 methods to update software in the VCTp: I2C method, RS-232C HyperTerminal and RS-232C Tera Term method.
# RS-232C method is allowed when the TV is working properly and the action should be only software upgrade.
# I2C method is required when the VCTp flash is empty or corrupted (it means, any software inside IC running).
The hardware tools requirement are:
1. A Modem-null (Cross type) DB9 female to DB9 female cable.
2. An adapter DB9 male to mini-Din 9 pin male cable (Sharp Code: QCNWGA015WJPZ)
3. Make the connections as indicated in the figure:

Before using RS-232C updating method is necessary to configure Terminal PC software.
HyperTerminal has been selected as a Terminal software because it’s included in all Windows versions as an accessory, and you can find it inside “Accessories\Communications” folder (Windows XP).
For this reason, please follow carefully the next steps:
1. First time HyperTerminal is used, it’s necessary to configure some settings. Follows next action to configure two connection: low speed (9600bps) and high speed (115200bps).
2. Create a New Connection fi le with name “P55_9600bps”.
3. Select a free COM port and select the Port Settings properties.
4. Click on “File\Properties” menu for selecting the General and ASCII properties.
5. Select “New Connection” in the File Menu.
6. Answer “Yes” to close current connection and “Yes” to save session “P55_9600bps”.
7. Create a new connection with the name “P55_115200bps”.
8. Select a the same COM port used in item 2 and select the Port Settings properties.
9. Select the same General and ASCII properties as item 3.
10. Close HyperTerminal session, answering “Yes” to close current connection and “Yes” to save session “P55_115200bps”.
To start updating session, click over “P55_9600bps” icon that you can fi nd in the “START\All programs\Accessories\Communications\HyperTerminal\HyperTerminal” folder and follow next
procedure:
1. Check the connection between TV set and PC, sending a wrong command, as for example: “aaa”. TV set returns an “ERR” label as a syntaxis ERROR (Not correct order or sequence).
2. Send the command “DWMD” to enter TV set in Download Mode. The TV set answer sending same symbol continuously.
If this symbol character doesn’t appear, please don’t worry and pass to next step.
3. Close this connection and open “P55_115200bps” connection clicking over the “P55_115200bps” that you can find in “START\All programs\Accessories\ Communications\HyperTerminal\HyperTerminal” folder.
4. Using “Transfer\Send fi e…” menu, select desired file (.bin format) and the transmission protocol (Xmodem)
5. After press “Send” button the updating process starts.
6. When flash update process finishes, the ” Flash programming complete “ label appear in the screen, the device automatically go to switch off, and in a few seconds go to switch on again.
IMPORTANT NOTE:
During the updating time, please don’t use the PC for other purposes, in order to abolish communication problems between TV set and PC. If TV set was not updated properly, the TV won’t have the software to start-up again, and you must follow the “I2C method” to update another time the TV set.
This is the recommended method for upgrading the main unit’s firmware. Other methods (Tera Term and I2C method) to upgrade the main unit’s firmware are covered in the service manual.
To upgrade the digital firmware, please log a technical request via the Sharp Technical Website and we will contact you with the information and software required to carry out this update.
Entering and exiting the adjustment process mode
1. Unplug the AC power cord of running TV set to force off the power.
2. While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the power.
The letter “K” appears on the screen.

3. Next, hold down the “VOL (-)” and “P (DOWN)” keys on the set at once. Multiple lines of blue characters appearing on the screen indicate that the set is now in the adjustment Process mode. If 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 power cord to force off the power. (When the power is turned off with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait 10 seconds or so before plugging.)
How to update the Digital Board Software.
There are 2 methods to update the Digital Board Software on Flash Memory (IC4251) throught the Digital Processor (IC4001).
# RS-232 Method (From PC trough RS-232C COM port).
# PCMCIA CARD (Compact Flash Memory) Method.
NOTE: The PCMCIA method is only compatible with those PCs running XP Windows Version.
Jig RS-232 Method Description
# Hardware requirements:
1. A modem null (Cross type) DB9 female to DB9 female cable.
2. Make the connections as in the below figure.

Software requirements:
1. “Winupload” application software on PC.
How to setup the “Winupload” software for the first time:
1. Start “Winupload”. It will appear
2. Select the most suitable RS232 Serial Port from “Port Setting” - “Process” Menu.
3. Select the following settings from “Port Settings” Menu.
Bits Per Second: 115200
Parity: None
Data bits: 8
Stop bits: 1
Hardware Flow Control: OFF
Procedure for updating the TV set.
1. Switch off the TV set to be updated, in DTV mode.
2. Start “Winupload”. It will appear
3. Establish connection on Winupload Software.
4. Select “Upload URT file”
5. Select and open the “.urt” data file from data directory
NOTE: Consider the version shown below just an example, may be is not the latest one, and could be different depending on the TV set destination (market/Country) or model.
6. Switch On the TV Set (previously in DTV Mode). The Uploading Process starts automatically.
While the TV set is uploading the software, the following information is shown on the TV set screen.
Then, data transfer from PC to TV set finishes when the “Upload progress completed” label appears in the “Winupload” screen. Now, the TV set made some additional verification (Items #2 to #7). When the full uploading process is finished, in the “Winupload” window appears the label “Preparing to start application” for a new TV Set, and just now, in the TV screen of the updated set, appears a congratulations label (Item #8).
NOTE: Do not turn off the TV set while the software updating was in progress.
7. Unplug the AC cord.
8. Disconnect the Jig from TV Set.
# Software Version verification procedure.
1. Connect the AC cord and Switch On the TV Set.
2. Select DTV Menu on TV Set.
3. Select “Version”. The updated version can be verified.
NOTE: Consider the version shown above just as example, may be is not the latest one, and could be different depending on the TV set destination (market/Country) or model.
Software Version Upgrade Using Card
1. Write the software (ATV and DTV) on the PCMCIA CARD by following the procedure described in the separate document, “How to write software
(ATV and DTV) to PCMCIA CARD”.
(* In the document, both ATV and DTV are written; you may write either of them.)
(You can equally use any version after “Storage Media Manager Version 1.3.1”.)
2. Turn off the power.
(* You can select either of the mode ATV or DTV. In this document, ATV is selected.)
3. Insert the PCMCIA CARD with the upper side facing up into the card slot.
(* Do not insert the card with the upper side facing down.)
4. Turn on the power. After a short time, the message, “SYSTEM SOFTWARE UPDATE IN PROGRESS. ...) appears and the software upgrade starts.
If the ATV software upgrade is necessary, the step proceeds to (5); if unnecessary, the DTV software upgrade starts and the step proceeds to (7).
5. If the ATV software upgrade is necessary, the appears and the upgrade starts.
When the status bar reaches 100 %, the ATV upgrade is complete. Then the system restarts from the ATV mode. The step proceeds to (6).
6. The message, “SYSTEM SOFTWARE UPDATE IN PROGRESS. ...” appears again and the DTV software upgrade starts. Then the step proceeds to (7).
7. After a short time, the message, “Congratulations! ...” appears. The upgrade is complete.
Note: You cannot downgrade the ATV software but can downgrade the DTV software.)
Initialization to factory settings
Enter the adjustment process mode.
# Move the cursor to [Factory Init] on page 2/11.
# Use the R/C key to select a destination [EURO/RUSSIA/ SWEDEN]. And, press the [OK] key.
# “EXECUTING...” appears and initialization starts.
# After a while, “*** OK ***” appears and the setting is complete.
NOTE: Never turn the power off during initialization.
Lamp error detection
1. Function description
This LCD colour television has a function (lamp error detection) to be turned OFF automatically for safety when the lamp or lamp circuit is abnormal
If the lamp or lamp circuit is abnormal, or some other errors happen, and the lamp error detection is executed, the following occur.
1- The main unit of television is turned OFF 5 seconds after it is turned ON. (The power LED on the front side of TV turns from green to red.)
2 - If the situation “1” happens 5 times sequentially, the power is turned on (relay is turned ON).
However, the backlight is not turned on, and then the relay is turned OFF after 5 to 6 seconds. (The power LED turns from green to red.)
2. Countermeasures
When television is turned OFF by the lamp error detection mentioned above, it enters the adjustment process with the power LED red. Entering the
adjustment process turns OFF the error detection and turns ON TV. This enables the operation check to detect errors in the lamp or lamp circuit
Check whether “L ERROR RESET” on point 7, page 10/11 of the adjustment process is 1 or more. If it is 1 or more, it indicates the lamp error detection was executed. After confirming that the lamp or lamp circuit is normal, reset the lamp error counter pushing “OK” in the R/C. After resetting
counter the label “***OK***” appears on Screen.
3. Reset standby cause error list
After confirming that the lamp error counter has been erased, select “STAND BY CAUSE RESET” on point 3, page 10/11 of the adjustment process
and select ON using the right cursor. For execute press “OK” in the R/C and the label “***OK***” appears on Screen.
How to Enter in the Public Mode (Hotel Mode).
Turn on the power and enter in the Adjustment Process mode as usual.
In the [INIT], Page 2/11 of Service, turns ON the Public Mode option.
Turn off TV by pressing Main Power switch.
While pressing “VOL+” and “INPUT” keys at the same time, press Main Power switch for more than 2 seconds.
Then, when you are asked for the password, enter “027”.
Is possible to select each item of function by pressing cursor UP/DOWN keys on the remote control or CH(UP )( DOWN) keys on the LCD TV. (Except DTV)
The setting position of each item of functions is made by pressing cursor RIGHT/LEFT keys on the remote control or VOL (+) / (-) keys on the LCD TV.
Select EXECUTE position after you set all function, and press cursor RIGHT/LEFT keys on the remote control or VOL (+) / (-) keys on the LCD TV for confirmation.