Here is a link to the IC amplifier on the board: http://www.semiconductors.philips.co...7052AT/N2.html
I was thinking of adding a fan in the same place as Don an then hooking the fan to the speaker output. My fan is a 12V 0.06A fan so it draws less power than the 32ohm, 1W speaker that I took out. I want to do this because I can then use the volume buttons in the front to lower/raise the fan speed. As you technicals might guess, I need to hook up a signal to the audio input. My question is, how high of a signal? 1V, 3V, 5V, 12V?? My theory is to solder up a wire from the audio input to the power input, that way the fan will come on whenever the lcd is powered.
DOH! Scrap that idea, the volume buttons only work in video1/2, not vga.
Now that audio can be enabled in VGA-mode through the hidden factory settings menu, I will look into the idea of turning the volume buttons into a fan speed controller. It depends on whether the signal on pin 4 of the TDA7052 ("DC volume control") can deliver enough current to power a 40mm fan directly. I'd suggest adding a darlington as a buffer anyway.Originally Posted by ddogg_777
CarPC status: HW all done, SW needs tweaked.
Hardware: VIA MII-12K, 512MB, 60GB 2.5", CW-8123 DVD-CDRW, 7" Lilli ts, Opus 90W, BU-353 GPS, 802.11b PCI, USB bluetooth dongle, AverMedia AverTV Cardbus Plus, Morex Cubid 3677
Software: RR, MM/FD
HOW? please do tell, as I've been wanting to find out for AGES.Originally Posted by mox
Thanks in advance,
Sweet Mox, let me know what you find, I've pondered this too.
Awesome info! I'll probably do this one day just to make me feel better that the screen will run a little cooler. Where can i get a fan like that? Do regular stores sell ones that small? (Best Buy, Circuit City, etc.) Thanks
has anyone tried hooking up the fan to the speaker output with any success
I know this thread is super old, but I got 3 Lilliputs also and Im thinking of doing this also. I had 2 fans blowing air in, but the screen still seemed to get hot, so now Im going to go head and remove the speaker and draw air out....
Nirwana Project, the Android/Win 7 hybrid system!
1X Ainol Novo Flame Tab
3x Perixx Touchpads
3x 7 inch Screens
1X 7 inch motorized Screen
1x Win 7 PC