How do i know if my screen is bad. It was working fine then I donated it to our rec center and now it only lights up in a 12 x 2" triangle near the center bottom samsung logo

Protect mode bad ground or bad amp

The image of the 2 cars opposing each other looks like it wants you to 'jump start' the 12 volt system of the car. SO test the 12 volt battery and try. Videos on youtube show how to read the 12 volt battery in the MFD and how to jump start the 12 volt battery.

Be sure to check all connections on the rear. Are both channels bad? Also if it has preamp output or rec out, u can check to see if those work with a external amp of some kind. Good luck. Let me know if you need more suggestions.

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Shine a flashlight on the dark screen to see if you barelysee the icons on the desktop. If so, then the LCD Inverter is bad.

Plug in an external monitor and see if the display shows up on it. It can beany kind of monitor even the old big fat crt monitors as long as it has a vgacable to connect to your computer's vga port. If so that proves yourvideo card is ok. The video will show on most systems when you rebootwithout you having to do anything. Some systems will require you to hit the FN(Function key) + F1 thru F12. Hold down the FN key then hit the correctkey for displaying on the monitor (F1 thru F12). The correct key willnormally have CRT/LCD on it or it will have the icon of a display.

If you see no icons by shinning a flash light and the external monitor works,then your screen is bad. If you see no icons by shinning the flash lightand nothing shows on the external monitor, then most likely your video card isbad.

that is the cruise control thats working
u'll usually see it blink when the road conditions are bad or when its raining or wet

the screen is bad just look for something to do about it.

There is a bubble shaped sensor on you center dash near the windshield. It may be dirty, blocked, or broken. If you hear a high speed click and the lights strobe pretty quickly, it may be a bad relay. Last, you may have a bad ground. But - I doubt it since the lights work fine when not in Auto mode. I would start with the sensor then relay.

If you're saying you hooked the Bose speakers directly to the Yamaha's amp instead of the prescribed way through their own bass module - they're cooked.

The easiest way I know to fix the problem is just play tapes. Sounds like a bad switch contacts. clean the contacts or replace the switch. I don't know of any shortcuts. Sorry

Need some more details the problem you describe could be anything from a simple convergance problem or the light tube going bad in a light engine, one problem about $80.00 to fix the other, slightly over a $1000.00