All of the service adjustments are accomplished either using controls inside
the set (though some may be accessible by holes in the rear of the cabinet).
These are usually pots on the mainboard and CRT neck boards, or in newer
TVs, mostly via a service menu accessed from the remote or by using a
manufacturer specific computer interface.
|NotTaR of Television Sets : Internal adjustments
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A Web site with some information on the general objectives of video and
color setup procedures for both direct view and projection TVs is
Tru-line Video Technologies.
- Where actual pots are present, they may be labeled on the circuit boards or
identified by a sticker on the TV's cover. Otherwise, the service manual or
Sams' for the set will be required unless their function of the relevant pot
- For service menus accessed via the remote control, service information is
almost a necessity since adjustment procedures vary widely and it is all too
easy to totally mess things up - even to the point of inflicting serious and
expensive damage to the set.
For information on accessing the service menus if used on your model, see
the section: Setup adjustments lost - TV service
codes. However, even if the access procedure is known, get the service
manual or Sams'!
- If a computer interface is required, you can most probably forget about
attempting to adjust anything unless you find a friendly shop to provide the
adapter and walk you through the procedure. Why would they want to do this?
Because they know you there is a good chance that you will have to pay them
to unscramble the mess you created!