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Remove the neon tube and replace it with a new one.
Remount the upper front panel and reconnect the Ribbon cable; then check the
neon tube operation.
CHECK THAT THE NEON TUBE SUPPORTS ARE NOT DAMAGED AND ARE
CONNECTED PROPERLY.
Unscrew the neon tube support by removing its screws
Check if wires inside the neon tube holders contacts are inserted properly
Carry out an electric continuity test between the neon tube holders and the ballast
inside the electrical system box.
Place a test probe in one of the neon tube holder's contacts and check the ballast
continuity inside the electric system box.
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