Hello I just got a Mini2440 ARM9 Board with 3.5" LCD TD035STED4. The "LCD Controller Board" is LCDT35-090618. At the first boot, the lcd worked fine but, after playing with some qtopia apps, i used the shutdown command and then my problem started. The fact is that my LCD was too damn bright and the only way to see an image on it, was by looking by some angle. At first i thought it was something related to the Backlight. But, after looking at the "Lcd Controller Board" Schematics, i resolved to change resistors R19 and R20 by one single 820R resistor. Then the backlight became weaker, but the image is still hard to see. Is there any configuration of Brightness and Contrast that LCD stores in its memory? Does anybody had this problem before? Best Regards!
LCD White and brightness
This seems to be a pretty commone problem I have seen quite a few posts of people describing the exact same thing none of us have been able to get the company to help or even respond ,, I think its a hardware problem like you mine worked for the first 5 seconds I owned it no its worthless add to that the chinese documents with the scattered english its been nightmare,, it looks like such a good system for learning ARM and building projects its a shame,, I wonder if this compnay thinks people are not going to spread the word ,, I emailed there tech support here is the relp I recived back and I quote Me: ""Hi I purchased the friendly arm system a few weeks ago it just acme in today it looks like a very nice system but I am having a problem the screen is bright white at first I thought it was just blank white but if you hold the device on a very extreme angle you can actually see icons they are in chinses so I do not know what to do is there anyway it can be adjusted for english and a fix so I could actually see the screen? Thank you. Here is what they wrote back I have the entire email if anyone wants to verify it.. Friendly Arm"" So what do you want from me"""""""" That is what they said back to me!!!!!!!!!!!!!!!!!!!!I have heard nothing else until I found this fourm
I think the LCD maybe bad for some reason, you can exchange it with the seller. To change the lanugae, see here: Q: I have a new Mini2440 with LCD. When I power on, Linux launches, but in Chinese! How do I change it? A: There are several tools that look like they should change the language but only one will work. Select the tab that looks like a bunch of colored baloons. There is a red icon easily mistaken as a beach chair. It is a Chinese PRC flag, red with yellow star, waving horizontally over a Union Jack. The Chinese characters say "Language Selection." Tap this icon and choose English or Japanese. The Linux will restart when you are done. This Q & A is from www.andahammer.com
Guys, i changed the LCD itself (and nothing more) and everything worked fine.... Neither the LCD Controller Board or the Flat cable were the problem. (but i still think that the lcd stored a configuration that make it blank all time... but i dont know how to check that) Best Regards!!