JMA-5300MkIIsm

INDEX > 6.Troubleshooting > 6.5 Sample Problems : Internal Circuit
6.5.2 The brightness nonuniformity is visible on the LCD panel at
night condition
[1] Content
If you adjust the brightness dial to minimum, you will see the brightness
nonuniformity. It is specific characteristics of CCFL backlight, so the equipment
is not faulty.
[2] Problem location
[2]-1 The brightness dial
• Adjust the brightness not to visible the brightness nonuniformity.
6.5.3 Screen sometimes shows display and sometimes not
[1] Content
The display appears and disappears even though the radar is operating properly.
[2] Problem location
6
[2]-1 Connection
• There could be a problem with a connector connection. Check the connections
of the RGB connector (J7) and the LCD power supply (J6).
[2]-2 Input voltage
• The input voltage could be too low. Check the voltage.
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