LCD problem

[alkama]

Ok, i checked it again and i don't had connection between pin 2. Now i have 5V between pin 1 and 2 but still there is nothing on LCD.

[dmitri]

Just as thoroughly as I did in viewtopic.php?f=3&t=352 detailing the procedure of finding causes of LCD problems, describe here all your steps while following the procedure.

[alkama]

I should follow with this viewtopic.php?f=3&t=492 ? I checked voltage between pin 1 and 3 and it is 2.5V.

[dmitri]

Sorry, of course viewtopic.php?f=3&t=492

[alkama]

And one more, when i connect LCD pin 1 and 3 theres nothing happend, LCD lighting with this same intensity. So it is damaged?

[dmitri]

Have you started MegaDrum normally or into a bootloader node?
Are you sure the LCD is blank and in fact filled with underscore characters?

[alkama]

I had done these parts from programming mcu's section: 'Programming MegaDrum bootloader' and "Load Megadrum firmware'. In first post i pasted MCT log.
Yes, LCD is shine but there are not any visible characters.
May Atmega is not programmed properly.

[dmitri]

So if (when you boot into the bootloader):
1. the LED is flashing while you keep the key LEFT pressed
2. there is no short between pin 3 and 1 of the LCD
3. no changes on the LCD whatsoever when you shorten pin 3 to pin 1
4. connections between the board and the LCD are all good

then your LCD is faulty.

[alkama]

All is that what you said.

[Firelord]

What LCD are you using anyway?