On the series of set you have, Disply, 5, Vol+, PWR should do it. Press
Mute, Enter, to save your damage.
Take care, that many of the adjustments require the proper test
facilities to properly calibrate. Only a small number of them are done
visualy. There are no default settings. These values are adjusted to
the particular set's characteristics. Some settings can actualy go out
of range, thus making the set non accessable any more. The set would
require proper shop service to get it working again.
The service adjustments are factory set, and should not have to be
modified after manufacture unless critical parts have been replaced.
If your set has a fault and was working before, then proper service
should be done to repair the problem.
Jerry G.