MP3Car.com - View Single Post - Whining from the speakers because of touchscreen?

JimmyFitz · 04-24-2008, 09:58 PM

Quote: Originally Posted by Jantsa

I was still thinking about what I tested today..and..

Laptop was on, touchscreen was on, and they were both powered by cig lighter.
There was loud whining.

I unplugged the audiocable from the laptop, to another laptop without no
touchscreen, and sound was clear, no interference.

So...

It's not screen, it's not screens power, it's not AUX IN connects2box, it's not head unit, problem has to be something between laptop and touchscreen..

Could it be VGA, or USB cables..

Tomorrow I'm going to test unplug those cables and see what happens. I'm preparing myself allready, that problem is there. Well what can be done if it's VGA or USB interference...?

You have the right idea about isolating the source of the noise. Once you determine which device is the culprit, try re-routing the offending cables away from the others, etc. Also, keep your RCA audio cables as short as possible.

04-24-2008, 09:58 PM	#5
JimmyFitz Maximum Bitrate Join Date: Nov 2005 Location: Austin, Texas Posts: 723	Quote: Originally Posted by Jantsa I was still thinking about what I tested today..and.. Laptop was on, touchscreen was on, and they were both powered by cig lighter. There was loud whining. I unplugged the audiocable from the laptop, to another laptop without no touchscreen, and sound was clear, no interference. So... It's not screen, it's not screens power, it's not AUX IN connects2box, it's not head unit, problem has to be something between laptop and touchscreen.. Could it be VGA, or USB cables.. Tomorrow I'm going to test unplug those cables and see what happens. I'm preparing myself allready, that problem is there. Well what can be done if it's VGA or USB interference...? You have the right idea about isolating the source of the noise. Once you determine which device is the culprit, try re-routing the offending cables away from the others, etc. Also, keep your RCA audio cables as short as possible. __________________ 2002 T-Bird, Via SP13000, Travla C158, M1-ATX, 1GB RAM, 120GB 2.5" drive, SlimSlot DVD-RW, XP, RR, Winamp, Xenarc 700TSV, HTC Touch PPC/Phone, BU-353 GPS/iG3, Elmscan OBDII, Griffin PowerMate, 2 Blaupunkt amps, Polk spkrs, 5 sec startup/S3 STR ~Jimmy