AVS Forum Special Member
Join Date: Apr 2001
Location: Margaritaville, AZ, USA
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It occurred to me that the lousy user settings make service menu tweaking A LOT more difficult... the display resets to these crappy defaults every time you enter the service menu, so you end up trying to gauge the effectiveness of the s.m. adjustments being made with the basic brightness/contrast color settings set badly. AND you're forced to readjust them every damn time you EXIT the s.m... Well, this *can* be addressed - let's tweak some of the s.m. settings to *make* the default user settings GOOD.
I plan to start by (once again) resetting all s.m. values to Samsung defaults. Then I'll adjust brightness and contrast values in the Main VCD (Menu 2) so that the default contrast and brightness (in the user settings) don't need to be adjusted. Sharpness is less obvious (and in general, I don't see much difference on my set when I adjust this setting in the user settings menu) so I may have trouble with this one (I''m thinking maybe the comb filter settings may be related to this, but it'd be nice if we could find a real video expert to give us some general guidance about menu sections, applicability/correspondence to aspects of PQ, etc.) Color level and balance (tint) should be pretty straightforward as well. The goal here is to adjust the s.m. values such that the default user settings are optimal. Once we know which settings to adjust and what values to set them to, we publish these, and *everyone* makes these adjustments and then doesn't mess with them any further.
Once this is done, here's how I intend to proceed (I'm posting this in case anyone else wants to help do this)...
Elvis's Service Menu Documentation Procedure[list=1][*]Go in to each menu and adjust the first setting to it's minimum value[*]Power off the display to exit the service menu[*]Power the display back on (no need to reset user settings now!) and see what effect that one, single adjustment had.[*]Make a note of it. Also note whether the effect of that adjustment while in the service menu was MORE dramatic, less dramatic or about the same as what you see once you exit out of the service menu.[*]If you're not certain of the effect... Go back in to the s.m., change that setting to its maximum value, power off to exit s.m., power back up and check again. If there's still no discernable difference, write down, "NVE" (No Visible Effect)[*]If the effect is obvious, try to find the optimal setting and write it down[*]Set it to its original value, proceed to the next setting and repeat the steps above.[/list=1]
DON'T FORGET that some settings have a much more dramatic effect while in the s.m. (for example, G GAMMA) then they do when you exit it. Conversely, some settings appear to have NO EFFECT while in the s.m., but are quite dramatic when you exit it. DO NOT RELY on what you see while you're in the s.m. unless/until you have verified that the effect while IN the s.m. is the same as the effect once you EXIT the s.m.
ALSO NOTE that we need to do this based on the factory default settings as published in the Samsung service manual. After we've documented the effect(s) of each setting, THEN we can build good settings on top of good settings to create our final, ultimate settings.
One last note... We'll have to do this separately for 480i, 480p, HDTV, VGA and DVI. It's a big, big task - I hope you'll help me "divide and conquer", but our first step has to be making the default user settings GOOD by adjusting s.m. values.
~ Elvis (but don't tell anyone!)