TAG DVD32FIR manual Pluge

32 test patterns

pluge 1

The PLUGE 1 signal will look like this with black level (brightness) set too high.

black

PLUGE dark grey

Turn the brightness(1) up until you can clearly see the PLUGE bar. Then turn the brightness down slowly until the PLUGE bar just disappears in the dark background(2). Don't turn the brightness down too much, you should always see the grey bar to the right of the PLUGE bar(3).

1.If you intend to play both PAL and NTSC then you need to make sure you have set the ‘NTSC black level’ (->setup->change setup->video- >black level) correctly before you carry out this adjustment as both are interrelated. This will make sure that the black level is maintained when switching between PAL and NTSC

2.Black is the absence of light. You will only achieve a ‘deep’ black if you prevent additional light from hitting your screen

3.Some projectors, for example LCD and DLP types, cannot achieve real black (the absence of light) because of their internal construction. You can easily test this by standing between the projector and the screen when displaying the PLUGE 1 test pattern. If you can see your shadow on the black background (assuming there is total darkness in the room) then the projector still outputs light whilst trying to produce black. This is characteristic for these projector types and not a fault

test patterns 33

pluge 2

The PLUGE 2 signal will look like this with the black level (brightness) set too high.

black

PLUGE dark	white
grey

PLUGE 1 has low average intensity, whilst PLUGE 2 includes a white bar. Adjust the black level using both test-patterns (PLUGE 1 and PLUGE 2), and if the settings differ use the average of both. Only the very best display devices are able to maintain a constant black level independent of the picture content. You might need to select an average of both calibrations.