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Discussion Starter · #1 ·
Well, here's the contents of the xb31’s service menu. My default values in lists are in parenthesis.


Page 1:

Calibration: FREEZE/Source Engineering Mode V2.0 4/1

Color Wheel Index 10085

Spoke Light On: White (Normal) Black

Lamp Sync Type NoSync Level (Rising) RisingWF

Bin Select A B C D (E)

Brightness R 128

Brightness G 128

Brightness B 128

PIP ON/OFF ON (OFF)


Page 2:

Lamp hours set to 1500 1000 (no change)

Factory reset Yes (No)

Burn in test time 12

Degamma Selection Disable 0 1 (2) 3 4 5 6 7

White peaking 10

Sharpness filter 1 2 3 (4) 5 6 7 8 9 10 11


Current Mode: 0 when set to svideo

81 1024x768 @ 60 hz

90 1024x768 @ 90 hz

74 1024x768 @ 75 hz


Page 3:

Lamp hours 1 0

Lamp hours 2 2

Lamp hours 3 2

Lamp hours 4 0


A couple of important notes:


Calibration - Freeze and source buttons on the remote are used to calibrate pj by input of an all black and all white signals. Factory reset does *not* restore to original value! I wouldn’t recommend playing with this unless you are a pro.


Color Wheel Index - Machine specific. Factory reset does *not* restore to original value! Write down the value immediately in case you accidentally change it. I wouldn’t recommend playing with this unless you are a pro.


PIP - uses the m1 connecter as the primary and windows the svideo or composite input in the upper left corner. I haven’t found a way to do anything with it other that turn it on and off (i.e. resize, move, switch etc…)


Degamma Selection – Interesting to play with.


White peaking – A slider that goes from 1 to 10, factory set to 10. I think home theater looks better with lower values (to eliminate any white crushing); computer presentations look better at 10.


Steven
 

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Quote:
Originally posted by StevenH
Well, here's the contents of the xb31’s service menu. Steven
PLEASE NOTE - if you wander into the service menu and plan on

changing any values, make sure to record the factory settings first!!!


Unlike the user menu which has a "restore to factory defaults"

option, there is no such option in the service menu, and some

of the values in the service menu are custom-set for each projector.

For example, the color wheel index is unique to each projector,

and is the result of a complex factory tuning procedure involving

lots of fancy equipment that even I don't have.
 

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Thanks, Steven. I haven't poked around enough to know how to access the service menu. Is it obvious? Sorry for the dumb Q...


And thank you, XB31, good warning!
 

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Additional FYI.


According to our support folks, playing with the service menu

could void your warranty.


According to our engineering folks, altering some of the service

menu options could cause permanent damage to the projector.

I was told that one of the options, for example, alters the voltage

range going to the DMD.


If despite the above you still choose to enter the service menu,

and I do not and cannot recommend doing so, the only item

worth playing with is the white peaking control. It controls how

much the clear segment is used. Notching it down will boost

color saturation at the expense of lumens.
 

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Quote:
...the only item worth playing with is the white peaking control. It controls how much the clear segment is used. Notching it down will boost color saturation at the expense of lumens.
What is the percentage range of the clear segment controlled by this setting?


Thanks.
 

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Quote:
Originally posted by KBz


What is the percentage range of the clear segment controlled by this setting?
0-100% When set to the lowest setting, all light deliberately

hitting the screen is via the RGB segments only.
 

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Quote:
Originally posted by StevenH
Do you happen to know what the contrast ratio drops to when the slider is set to 0?
I do not have an actual measurement, but I speculated

in another posting.


Without details, the short answer is that the CR will drop. The

slider will not change the black-point since that's stray light,

but it will reduce the white-point which is the total number of

lumens (RGB type white plus pure white) reaching the screen.
 

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Discussion Starter · #10 ·
xb31, Sorry for asking a question that you already answered - I just found your reply in the other thread.
 

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XB31 -


Is the "white peaking control" in the service menu the same control as the "Image Optimization" control which you said did not make the release date of the projector?
 

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Quote:
Originally posted by KBz


Is the "white peaking control" in the service menu the same control as the "Image Optimization" control which you said did not make the release date of the projector?
With HP's printers, many aspects of the imaging pipeline are

controlled by the simple "draft / normal / best" buttons. Our

projectors plan to follow the same paradigm. As of today

however, the only real tweak the image optimization slider

makes is to the white peaking control.
 

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@ sinno


I didn´t know the XB31; I will get more at INFOCOMM; but it must be a great pj; Please wait after the show


personally the LS 110 will be better than the Piano; but against the XB31?! when StevenH posted his screenshots and I compare them with the new LS110, I have to say, the xb31 will be the better unit than the LS 110


hb
 

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Quote:
As of today however, the only real tweak the image optimization slider makes is to the white peaking control
xb31 - thanks.


That explains what I am seeing. Your candor and input here is really great.


I am enjoying the projector more and more.
 
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