Question about Televison & Video
I have the above digi tuner. Ive had it ages in the kids room and run it on two old televisions via the coax cable connector. I cant get the tele to "see" the digi box. what ever chanel I select. it just dont want to work. Any suggestions?
It is a loose connection or cold solder and cleaning problem this is the main caused .Cold solder issues - each
component is soldered into small
holes on the printed circuit board which in turn connects said
component to the
other components. Due to time, heat, use, some solder joints would be
or loose. It is possible that the cold solder is still minimally
(hanging by a thread). When the receiver turns on heat would be
generated which would
be sufficient to further loosen up the solder joint to the point it no
provides electrical contact. Jarring the unit creates movement inside
re establish the contact, sometime good enough sometimes not enough.
Again, since the unit still operates (sometimes) then it is highly probable that there are no defective components. As you have surmised, it is possibly a loose connection, solder joints are "connections" except that molten soldering lead is used to attach/connect the component to the board, "loose connection" in this sense is equal to "cold solder".
Again on the assumption of no defective parts, then seeking a more experienced buddy for the soldering might be to your advantage. This is of course in addition to the possible electrical hazards when repairing....
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Posted on Jul 31, 2008
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Posted on Jan 02, 2017
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