APEX - AVL 2776 _ LCD TV _ FIRMWARE UPDATE PROCESS

Use designed ISP tool to upgrade system BIOS: Use RS-232 to link computer RS232 port (If no RS232 port can use USB transform) and LC2700W RS232 port, as below picture.

The CPU used for processing ISP need to burn LD0415.BIN to the LDROM of CPU. (Have burned before shipping).

Need to enter Factory Mode by pressing {Menu => Vol + => Vol (-)} buttons on OSD to execute ISP mode.

Push "Menu".

Push ( > ) button to access Factory Mode.

Press "Dn" button to ISP item.

When press "Vol +"button, TV will be locked.

Execute ispwriter.exe file

To execute CPU ispwriter.exe file on PC, and the following screen will appear.

Move the cursor to click "Select Chip" button and select the type of CPU {W78E65}

Move the cursor to click "ChkProgram start at APROM" to cancel the selection.

Move cursor to click "Select bank0" button to select the wanted program.  The file format is binary format, instead of hex format.

Select the Port Name on Communication Setting screen.

Move the cursor to click "Connect"button to link.  If linking succeeds, below screen will appear.

Click 'Program All" button to auto-execute erase and program function.  After execution below screen will appear.  Click "Confirm" button to finish the execution.  

To click 'Verify'  button to execute verify function.  After verification, below screen will appear.  Click "Confirm" button to finish verify function.  

After updating APROM program, disconnect ISP tool.  Power On LCD TV again.