How to upgrade the software – how to enter the service mode- Daewoo DLA37 LCD TV

Applicable to Daewoo DLA-32C7LAB, DLA-32C7LABD, DLA-37C7LAB, DLA-37C7LABD, DLA-42C7LAB, DLA-42C7LABD

Color Standard : NTCS, ATSC
Reception Channel : Ch 2~13 (VHF), Ch 14~69 (UHF), Ch 1, 14~125(Cable)
Sound Transmission System : FM Mono, 2 Carrier, Dolby Digital.

V Chip(Parental Control) SPEC
i) The rating doesn't work in PIP/POP mode. Reserves case is the same.
ii) The rating setting is possible only on the menu.
iii) Initial password : 2-2-1-1.
iv) Universal key cord (When user does not know password) : 5-4-2-2.

To enter SERVICE MODE.
A. Press “<VOL”> “MUTE”> “DISPLAY”> “MUTE” button of remote controller (R-55M15)
B. Press “S9” button of SERVICE REMOTE CONTROLLER.

BACK-LIGHT INVERTER CHECK.

Pin 14 is Status Output of Back light Inverter.

3.0V to 5.0V > Normal

0V to 0.7V > Abnormal

Software Upgrade procedure.

To upgrade PIC, remove(open) jumper of JP601. 

After upgrade completed, JP601 must be shorted with Jumper to normally operate the video board.

Run PICkit 2 Microcontroller Programmer

confirm if pickit 2 microcontroller programmer deteced device(PIC16F690) appropriately or not.

Importing HEX file for upgrade.

Write Click.

remove Pickit2 upgrade board when complte massage is come out.

Short JP601 with Jumper to normally operate the video board.

Flash Upgrade.

Installing CDM Driver.
• Download the latest available CDM drivers from the FTDI web site and unzip them to a location.
• Connect the device to a spare USB port on your PC.
Once the composite driver has been installed Windows Found New Hardware Wizard will launch.
The screen below is shown. 

Select “No, not this time” from the options available and then click “Next” to proceed with the installation.

Select “Install from a list or specific location (Advanced)” as shown below and then click “Next”.

Select “Search for the best driver in these locations” and enter the file path in the combo-box (ex.“E:£‹CDM 2.00.00”in the example below) or browse to it by clicking the browse button.
Once the file path has been entered in the box, click next to proceed.

The following screen will be displayed as Windows XP copies the required driver files.

Windows should then display a message indicating that the installation was successful.
Click Finish to complete the installation for the first port of the device.

The Found New Hardware Wizard will launch automatically to install the COM port emulation drivers.
As above, select “No, not this time” from the options and click “Next” to proceed with the installation.

Select “Install from a list or specific location (Advanced)” as shown below and then click “Next”.

Select “Search for the best driver in these locations” and enter the file path in the combo-box (ex.“E:£‹CDM 2.00.00”in the example below) or browse to it by clicking the browse button.
Once the file path has been entered in the box, click next to proceed.

Screen will be displayed as Windows XP copies the required driver files.

Windows should then display a message indicating that the installation was successful.
Click Finish to complete the installation for the first port of the device.

Open the Device Manager (located in “Control Panel£‹System” and then select the “Hardware” tab and click “Device Manger”) and select “View > Devices by Connection”, the device appears as a USB Serial Converter with an additional COM port with the label “USB Serial Port”.

Connect USB cable to the USB port of the computer.
• Connect the phone jack cable the service port of set.
• Run Flashupgrader.exe in the PC to excute the program.

Select current Upgrade file.
i) Click “Choose...”button to select the file you want to upgrade.
ii) Select the file (pwSDK.inf) that you want to upgrade.

Select correct COM Port and Baud Rate(115200) as shown below.
Then press Flash button to finish setup.

Turn on the power and then upgrade program will start the download.

When the upgrading is complete, a window (below) will be opened.
Press “Finish” button to complete the process.