Sylvania SRT902A - Manual (Page 16)

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IX Before Repair
The following phenomenons do not mean that the TV set has fault.
Please check it according to the following methods before repair.
Phenomenon Reason
No image and sound
AC adapter or automobile adapter
connecting improperly; using
unauthorized power; the power switch is
on the state of off.
No signal
Whether chosen the right channel; auto
setup receiving channel again; channels
need to be reset in a new place.
No sound
Whether the volume has been turned
down at the bottom; whether the
earphone is inserted; signals too weak;
the mute function is working.
Mosaic in the image
Whether the antenna has been adjusted
properly, and maybe the signals are too
weak.
Could not receive
signals Maybe the local signals are too weak;
open antenna or cable TV preferred.
Image too dark
Whether the brightness and contrast are
proper, and please adjust again.