Trouble Shooting
• Mainboard not work
•
1. check if there is +12V/+5V output
on the power board
•
2.Verify if the DC/DC convertors have
the right output (5V,3.3V,1.5V,1.15V)
•
3.Verify if the Mainchip(MSD308BEM),
AudioAMP...solder
•
4.Verify if the FLASH(U6) has the right
software and work well;
•
5.Verify if the Y1(Crystal) has the right
frequency
well;
- 59 -
Panel not work
1. check if the voltage input and
output of voltage boost IC of the
backlight is OK.
2.Verify if the Mainboard output the
right On/Off signal to power board;
3.Verify if the Mainboard output the
LVDS singal to panel T‐con board
4.Verify if the software is the right
version of this model.
5.Change the LVDS wire to check if it's
broken.