Troubleshooting; Reception Problems (External To The Tv) - Hitachi 20SA4B, 20SA2B Operating Manual

Hitachi operating guide solid state color tv 20sa4b, 20sa2b

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TROUBLESHOOTING

Black spots or horizontal streaks may appear, picture may flutter or drift. Usually

caused by interference from automobile ignition systems, neon lamps, electrical drills

and other electrical appliances.

Ghosts are caused by the television signal following two paths. One is the direct path

and the other is reflected from tall buildings, hills or some other objects. Changing the

direction or position of the antenna may improve reception. Ghosting may also be

caused by defects in the antenna system such as unshielded leads or connecting

several sets to the same antenna without using multiple antenna couplers.

If your receiver is located in the fringe area of a television station where the signal is

weak, your picture may be marred by the appearance of small dots. When the signal is

extremely weak, it may be necessary to install a special antenna to improve the picture.

The interference produces moving ripples or diagonal streaks, and in some cases,

causes loss of contrast in the picture.

• IGNITION NOISE:

• GHOSTS:

• SNOW:

• RADIO FREQUENCY INTERFERENCE:

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