Soluciones Guemacar

Descripción

Mercedes C160, Mercedes C180, Mercedes c180 Kompressor, Mercedes C200 Kompressor, Mercedes C200 CGI, Mercedes C230 Kompressor, Mercedes C230, Mercedes C240, Mercedes C280, Mercedes C320, Mercedes C350, Mercedes C32 AMG, Mercedes C55 AMGC200 CDI, Mercedes C220 CDI, Mercedes C270 CDI, Mercedes C320 CDI, Mercedes C30 CDI AMG

1. Problem details 

2. LCD details

3. Solution    

Incidental, these Bias levels might be different on certain clusters. This will result in less sharp images, or less contrast. If so, they can be slightly adjusted by soldering a resistor to a +5V, ground, or -15V(or -12V) point.                     

For example, if you got a LCD show contrast fault,

Step 1. Power on the dashboard, measure the voltage of V1 to V5

Step 2. Compare to the design Bais voltage and find out which one is much different.  

Step 3. Adjust the measured volt close to Designed BIAS Levels.                     

For now we want to add V2 more 0.20Volt, it can find for V2 need to add a 2.1K ohm resistor.