Feelworld FW7D/O - Manual (Page 17)

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6. Trouble shooting
1. Only black and white or monochrome picture.
Please check saturation、brightness & contrast adjustment.
Confirm B/W button whether in black and white or monochrome state.
2. NO picture after put on the power.
Check signal cable connecting, make sure use the standard adapter
connect the monitor. If power supply by battery, please check the battery
whether fully charged.
3. The image color distortion or abnormal, eg. lack some color.
Please check signal cable whether connect correctly or not. The cable
damage or loose will cause poor transfer, then above malfunction will
happen.
Check "color" function menu "color temperature" adjustment, whether
adjustment misconduct under the "user" state
4. If there exists an abnormal phenomenon, please try to enter into OSD
menu select "reset" to reset.
■ Remark:
If there are still other problems, please contact with our related deals.
* If there are changes without prior notice.