Part L. Trouble Shooting - NewLine VN Series Service Manual

VN Service Manual

Part L. Trouble shooting

Problem #1: Can't turn on machine (Power indicator always stay on red)
Problem #2: Dim screen (After turn on, the display get image but is very faint hard to see)
Problem #3: Android can't pick up the OPS signal
Problem #4: No power (Power indicator is blank even no red colour)
Problem #5: Partial touch or dead touch area
Problem #6: No touch
Problem #7: Ghost touch or the calibration is inaccurate
Problem #8: No image (Black screen) even no faint display
Problem #9: Black spot or Partial screen is dark
Problem #10: Vertical line or Horizontal line
Problem #11: Noise image or colour distortion
Problem #12: Flicker screen
Problem #13: Stuck on splash logo, can't enter into homepage
Problem #14: Always show different colour lines in screen after start.
Problem #15: Broken sound or sound popping
Problem #16: No audio output from OPS
Problem #17: The splash logo appear and disappear quickly, then black screen.
Problem #18: No signal from all HDMI input
Problem #19: Wifi module not working, can't detect wifi signal
Problem #20: Front HDMI not working
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