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Discussion Starter · #2 ·
Service menu suffixes

FWX20b/UWX20b/SWX20b/TWX20b/XWX20b/F500

4 - 480i Composite, S-Video

F - 480i/480p Component

G - 720p/1080i Component HDTV

S500/S700 (from BillG)

First Letter:

3-NTSC [480i Composite, S-Video]

D-SDTV [480i/480p Component]

E-HDTV [720p/1080i Component HDTV, DVI 480p]


Second Letter:

H-High Temp

M-Medium Temp

S-Standard Temp

B-Black and White Temp
 

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Discussion Starter · #3 ·
Ghosting on the ISF series Hitachis is a somewhat peculiar problem.


Most RPTVs have an inherent ghosting/haloing I refer to as ringing. This can be tweaked out of most Mits sets but not most other brands. Hitachis historically have not been plagued by this form of edge enhancement.


In addition to slight ringing, the ISF Hitachis actually display 3-4 ghost images to the left and right of objects. This can be quite distracting and can muddy fine detail. Luckily, the effects of this can be minimized through the ISF menu tweaks and the problem becomes virtually invisible with actual content.


Ghosting tweaks summary:


SHARP-4 20 10

SHARP-A 20 10

SHARP-B 1F 10

SHARP-9 1F 10

SHARP-E 20 10


APRTR-4 01 00 To minimize ghosting set to 00

APRTR-A 01 00 To minimize ghosting set to 00

APRTR-C 00

APRTR-E 01 00 To minimize ghosting set to 00


SRTGA-0 10 0 To minimize ghosting set to 00


Y-DTL-0 07

Y-DTL-0 will transition the ghosting from black to white. Find the optimal point for your TV.
 

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Discussion Starter · #4 ·
For those who find the PQ too soft after performing all the ghosting tweaks, here are my tweaks to find a happy medium.


MUST DO TWEAKS FOR GHOSTING:


SHARP-4 20 10

SHARP-A 20 10

SHARP-B 1F 10

SHARP-9 1F 10

SHARP-E 20 10


Y-DTL-0 - 05 has been the best on the sets I have done so far (but it was a tossup between 05 and 06 on my FWX and between 04 and 05 on the S500). Use AVIA sharpness test pattern for your set (some like using resolution pattern).



The other parameters seem to affect more of the classical ringing/EE.


I recently restored Tbass2k's S500 to defaults and we agreed the picture was much sharper without noticeable ringing (although ringing was apparent on test patterns)


APRTR-4 01 or 00

APRTR-A 01 or 00

APRTR-C 01 or 00

APRTR-E 01 or 00


SRTGA-0 0-10 according to preference

I am most happy with SRTGA-0 0A as the best compromise between a soft and sharp image with minimal ringing. Troy was willing to deal with any extra ringing to get the sharpest possible picture (SRTGA-0 10).


Experiment with these looking both at test pattern and actual content to determine the best medium for your preferences.
 

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Discussion Starter · #5 ·
Also, Edge Enhancement on the S series can be beneficial.


I generally disliked it for DVD (low was ok on some stuff but med was always overkill)


For HDTV, only on the US Open did I find low to cause some distracting artifacts that I liked it off. Medium was fine in some cases.


Generally, I would keep EE low for most material. Medium might be ok for some programs. If you notice artifacts, just turn it off.


For the non S sets, things get a bit more complicated. Perhaps Bill G can post some info about tweaking SVM. What I did on my FWX is leave everything at defaults except the GAM (gain?), which I reduced to 01.


VSM-PH4 06

VSM-PHA 06

VSM-PHC 05

VSM-PHE 06

VSMGA4 07

VSMGAA 07

VSMGAC 07

VSMGAE 07

VSMGAM4 01

VSMGAMA 01

VSMGAMC 01

VSMGAME 01
 

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Marc,


How about an ultimate Mitsubishi tweaks thread? I can't seem to find any info on tweaking a Mits... Can somebody give me some search suggestions?


I've gone through 3 s500's and the Hitachi tweaks thread proved to be an invaluable source of information.


I'm about to get a 55413 and would love to have a thread just like the Hitachi's for my new Mits.
 

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Discussion Starter · #7 ·
Hopefully, someone in my area will get one of the new Mits so I can get some experience other than sneaking into the SM at Sears and Best buy (I don't know the codes for the new ones yet).



Who knows...I may have the new Diamond come Xmas!
 

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Quote:
For the non S sets, things get a bit more complicated. Perhaps Bill G can post some info about tweaking SVM.

The S models do not have gain values that I have found yet in the Service menu. They only have phase (combo of ringing and scan speed). However, there are varying levels of gain in the user menu. So, you can adjust the phase parameters in the ISF menu so you can balance the amount of distortion vs ringing.


Parameters:


VSM-PHP ANT/NTSC/480i/480p

VSM-PHJ HDTV



Also, I would like to edit one item from above. After playing with a Bravo D1 player a few times during calibration, I am convinced DVI-480p is the best solution for the HItachi. The internal scaler on the Bravo is garbage. DVI-480p is treated as HD on the S model.


So, E-HDTV [720p/1080i Component HDTV, DVI 480p]


Bill
 

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I see skewed lines on DVD black bars and 4x3 gray bars on my 57S500. Should I replace my set? Is it a geomtry problem or a convergence problem?
 

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HIT 57TWX20B


I have done the above to remove the red push and the colors look much better overall. I am still having some issues with darker scenes in DVD movies....they look more green than black and grey. The only things I have really done in the SM are the above, and a few tweaks to RY and R/G on 480p to help with the red push as indicated by Bill. I have not focused, converged, and do not have AVIA yet. Is there anything I can do at this point, or do I need to get avia to set the TV up? I would still like to get a much crisper and clearer picture from by TV on DVD playback. Any suggestions?
 

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If you see green in black, that is graycale. You can try to reduce G-Cut to remove it. Right down your current settings before you start. AVIA won't help in the process. You really need video essentials to monitors to lower end of the grayscale.




Bill
 

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Discussion Starter · #15 ·

Quote:
Originally posted by pillguy
HIT 57TWX20B


I have done the above to remove the red push and the colors look much better overall. I am still having some issues with darker scenes in DVD movies....they look more green than black and grey. The only things I have really done in the SM are the above, and a few tweaks to RY and R/G on 480p to help with the red push as indicated by Bill. I have not focused, converged, and do not have AVIA yet. Is there anything I can do at this point, or do I need to get avia to set the TV up? I would still like to get a much crisper and clearer picture from by TV on DVD playback. Any suggestions?

I advise you get a copy of AVIA or Digital Video Essentials (haven't seen any reviews on this yet). The test patterns will help you get the green out (I like to look at 10 and 20 IRE windows, gray steps and ramps).
 

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Discussion Starter · #16 ·

Quote:
Originally posted by gambrelw
If you see green in black, that is graycale. You can try to reduce G-Cut to remove it. Right down your current settings before you start. AVIA won't help in the process. You really need video essentials to monitors to lower end of the grayscale.




Bill

I was told [by Gary Kuo I believe] that AVIA can be used if color is set to 0% and that it really didn't matter if you are doing grayscale by eye (they accidentally encoded some color into the patterns).
 

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That is not the case. There is color contamination on most sets. On the HItachi, going from 0 to 50 on color will increase blue and red by 20% at 20IRE. In a perfect world, Guy Kuo is right. But, that is not the case on most sets. Keep that in mind when you start calibrating professionally.


Bill
 

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Discussion Starter · #18 ·

Quote:
Originally posted by gambrelw
That is not the case. There is color contamination on most sets. On the HItachi, going from 0 to 50 on color will increase blue and red by 20% at 20IRE. In a perfect world, Guy Kuo is right. But, that is not the case on most sets. Keep that in mind when you start calibrating professionally.


Bill

Reallly? I'm glad this came up.


Do you agree that AVIA can be used for "by eye" calibration for pillguy's greenies?


I will be getting a HD test pattern generator so that I won't have to rely on AVIA (and be able to calibrate HD inputs)
 

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marc - thanks for the information. when going through the tweaks listed above in the ISF menu, what would you suggest the user menu color settings, etc. be in order to accurately see changes made in the ISF settings?
 

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I will write down all of my SM settings under ISF and post them here for you guys to take a look at (if you do not mind). I have used the other HIT tweak threads to adjust for red push (seems to be working quite well). Give me a few minutes to write them down....
 
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