Hitachi Red Push

Discussion in 'Displays' started by daneli, Nov 18, 2002.

  1. daneli

    daneli Extra

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    Can someone tell me which of the below service mode settings would be for adjusting the Color decoder on my Hitachi 57SWX20B? I would like to remove the red push...

    Thanks

    ISF Mode Settings

    RGBOUT0
    SUB-BRT
    G-DRV-H
    G-DRV-M
    G-DRV-S
    R-DRV-H
    R-DRV-M
    R-DRV-S
    R-CUT-H
    R-CUT-M
    R-CUT-S
    G-CUT-H
    G-CUT-M
    G-CUT-S
    B-CUT-H
    B-CUT-M
    B-CUT-S
    SUBCNT0
    COLOR-4
    COLOR-F
    COLOR-G
    TINT-4
    TINT-F
    TINT-G
    SHARP-4
    SHARP-A
    SHARP-B
    SHARP-9
    SHARP-E
    RY-PH-4
    RY-PH-F
    RY-PH-G
    R/B-GA4
    R/B-GAF
    R/B-GAG
    GY-PH-4
    GY-PH-F
    GY-PH-G
    G/B-GA4
    G/B-GAF
    G/B-GAG
    DC-PNT0
    DC-RET0
    DC-LMT0
    DABLPN0
    DABLGA0
    H-POSI
    H-POSIH
    H-POSID
    APRTR-4
    APRTR-A
    APRTR-C
    APRTR-E
    CLT-4
    CLT-A
    CLT-C
    CLT-E
    SRT-TR4
    SRT-TRA
    SRT-TRC
    SRT-TRE
    SRT-FQ4
    SRT-FQA
    SRT-FQC
    SRT-FQE
    VSM-PH4
    VSM-PHA
    VSM-PHC
    VSM-PHE
    VSMGA4
    VSMGAA
    VSMGAC
    VSMGAE
    VSMGAM4
    VSMGAMA
    VSMGAMC
    VSMGAME
    CDE-4
    CDE-A
    CDE-C
    CDE-E
    CLPPHS0
    HBPPH10
    HBPPH20
    DCUBRT0
    DCUCNT0
    OSDACL0
    OSDBRT0
    OSDCNT0
    DCRRSW0
    COLORG0
    YCGA-0
    BSP-0
    APL/BS0
    BLC-0
    BDL-0
    BS-ARE0
    SRTGA-0
    WPL-LE0
    ABL-PN0
    ABL-GA0
    TYNCG10
    DYNCG20
    STATG10
    STATG20
    YOUTG-0
    Y-DTL-0
    WP-PNT0
    WP-GA-0
    HI-VRT0
    WPS-0
    BLS-0
    G-STR-0
    BSTRG-0
    BSTRP-0
    BSCHR10
    BSCHR20
    SCT-SW0
    BBE-LO
    BBE-HI
    AGC
    SURR
    OSD-HP
    OSD-VP
    OSDCL12
    OSDCL3
    SMPLING
    POLLING
    START
    TIMEOUT
    STATUS
    WAIT
    REPEAT
    HFRQ-N
    SUBBRTH
    M-CONT-H
    M-CLR-H
    S-CONT-H
    S-CLR-H
    INPUT1
    INPUT2
    SYNCDET
    F-STD
    H-STD
    NOISE
    DYGA
    DCGA
    VAPGA
    VAPIN
    YHCOR
    HSYNC-M
    VSYNC-M
    CSYNC-M
    HSYNC-S
    VSYNC-S
    CSYNC-S
    M-CONT1
    M-CONT3
    M-CONTD
    M-COR-1
    M-COR-3
    M-COR-D
    MTINT-1
    MTINT-3
    MTINT-D
    MTOFF00
    MTOFQ-0
    S-CONT2
    S-CONT3
    S-CONTD
    S-CLR-2
    S-CLR-3
    S-CLR-D
    STINT-2
    STINT-3
    STINT-D
    STOFF00
    STOFQ-0
    Y-DL1-4
    Y-DL1-D
    Y-DL2-0
    YBLACK4
    YBLACKD
    BBLACK4
    BBLACKD
    RBLACK4
    RBLACKD
    AFCRAN4
    AFCRAND
    F-DET4
    HSEPL-4
    HSEPL-5
    HSEPL-6
    HSEPL-C
    VSEPL-4
    VSEPL-5
    VSEPL-6
    VSEPL-C
    DSEPL-A
    DSEPL-C
    AFCMD-L
    AFCMD-3
    AFCMD-D
    VMODE-4
    VMODE-5
    48ISEP4
    BANDW-4
    BANDW-5
    HDPOSI4
    HDPOSI5
    HDPOSI6
    HDPOSI7
    HDPOSIK
     
  2. Michael TLV

    Michael TLV THX Video Instructor/Calibrator

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    Greetings

    RY's R/B's
    GY's G/B's

    Regards
     
  3. Doug Schiller

    Doug Schiller Supporting Actor

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    Is it a simple on/off setting or do you have to tweak?

    I have a new 51SWX20B and after reading the Perfect Vision review (for the 57) they say just fix the red push but they don't say exactly how.

    Doug
     
  4. Marc Alexander

    Marc Alexander Stunt Coordinator

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    It is a tweak which can be done with a test disc like AVIA. It can be done by eye to some degree (to fix sunburned skin tones), but you really need a test pattern. Someone who has performed the tweak should be able to post their before and after values and it should prove very close for everyone. Sounds like a job for Mike Fusick!
     
  5. Marc Alexander

    Marc Alexander Stunt Coordinator

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    Sorry guys, I thought I was at AVSforum. I haven't been at HTF in quite a long while. I don't know if MikeF frequents this forum or not.

    Later
     
  6. MichaelFusick

    MichaelFusick Second Unit

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    I hang around sometimes.

    Put up the AVIA test screen with the color decoder check and adjust the color decoder parameters untill it looks correct, with no red, blue or Green push or pull.

    Try to get everything inline.

    Make sure you click the joystick when you change the values if you want to save it.

    Make double sure you write down the original values of anything you change, before you change it, just in case somthing goes amiss.

    Also, look in your blacks and darks and see if you see any color. You greyscale also could be off. (most likley isn't D6500K)

    Consider getting is ISF-ed for that fix.

    But, a slight Red Cut might help a bit as well...

    Good luck
     
  7. MichaelFusick

    MichaelFusick Second Unit

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    Like MichealTLV said "RY's R/B's and GY's G/B's"

    You can adjust the other colors as well, (green push/pull or blue push/pull)so everything should come out great color decoder wise.

    Alot of set's don't let you do this, and have this much control. Means you have to live with it, or find other more difficult ways to fix it.

    Consider yourself lucky in a way.

    older sony's have a nice easy fix too..

    Wish the MFG's would stop with this red push thing already.

    What is very strange is that last years model SWX (which I own) had no red push, yet this years some are 20%.
     
  8. Gregg Loewen

    Gregg Loewen Video Standards Instructor, THX Ltd.
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    Hello,

    Do not touch the red drive or red cut, they have nothing to do with red push.

    Do not use the AVIA color decoder check to adjust the color decoder. This screen is only meant for measuring and not for adjusting.

    Use the AVIA flashing color bars and with the appropriate filter. First select the blue bars and adjust the color and tint. Then select the red bars and adjust the R/Y and R/B controls. Then select the green bars and adjust the G/Y and G/B controls. Then start at the top again. After you complete the above process about 3 times you should have the chroma portion of your set nailed.

    Best of luck and as MF has mentioned write down all the values prior to making an adjustment.

    Gregg
     
  9. MichaelFusick

    MichaelFusick Second Unit

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    Thanks for the tips Gregg[​IMG]
    I have not actually needed to perform this tweak myself, so your expertise had really shown through.

    Gregg is also right about the Cut adjustment. I was recomending it only if there apeared color in the darks or blacks. Otherwise leave it, unless you think you can pefect greyscale by eye to your likeing.
     
  10. MichaelFusick

    MichaelFusick Second Unit

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    Gregg, Michael..??
    What is your policy or tendency to help with tweaking and calibration info to the general forum public?
    I usually notice that not many ISF guys are around sharing tips.
    You two are the welcomed excepetions[​IMG]
    Is there a written or unwritten rule about sharing ISF type info?
    Or, perhaps since it is somewhat your profession or hobby and you have taken the time and effort to master such a thing, sharing that with people in the long run hurts your business?
    Just curious.
     
  11. Gregg Loewen

    Gregg Loewen Video Standards Instructor, THX Ltd.
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    Michael, I dont mind at all. There are will be 3 million HD TVs in this country by the end of the year, I think I will be able to stay busy.
    Some people like to protect trade secrets. Others like to go in and fix other's screw ups [​IMG]
    Im sending you a email too.
    Regards
    Gregg
     
  12. Michael TLV

    Michael TLV THX Video Instructor/Calibrator

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    Greetings

    "Why we help ..."

    Gregg and I are enthusiasts first, calibrators second. We help people because we like to and we were helping them before we started calibrating so why change now.

    Good will also goes both ways.

    What we probably won't be divulging are items where one has to sign NDA's for obvious reasons.

    For a short while, I used to fear that giving away too many techniques would hurt the business, but I snapped out of that. Once you come to the realization that there simply are some "tweaker" types that would never hire you or anyone else anyway ... and add to that the outrageous distances between people ... then the desire simply comes back to helping people. A good deed is reward in itself.

    For every person that likes to do his own oil change, there is another that likes to use the jiffy lube ... each person can take what ever help we provide and go two ways ...

    They can implement what we say or they decide to back away as that is something they would rather not do.

    Occasionally, you fear that if you help too much, there is always a backlash ... which has occurred sporadically. The need to tear down those that like to help others. Fortunately that is rare.

    (No Good Deed Goes Unpunished.)

    Regards
     
  13. MichaelFusick

    MichaelFusick Second Unit

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    Most people will never be able to do as good a job as the two of you.


    I have been surfing these forums for a long time now, and I aproach it from a hobby standpoint, yet even I know that the two of you can do a better job than I, and would hire you myself in a second if I was not moving on to a FP theater in the new year.

    Perhaps Gregg will make the trip when I get my projector up and running.

    Gregg, do you have expertise in FP?
     
  14. daneli

    daneli Extra

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    Thanks everyone for the tips...

    Actually I am the type who likes to understand the way things work, do some things myself, and hire a professional to do the things I am incapable of doing.

    I do plan on getting a calibration, but thought? Why not tinker in the meantime...

    I played with the decoder settings last night using the AVIA Red Color Bars test pattern. It worked pretty well, and I think I have it close, but I am sure it needs more tweaking.

    It appears that the (4) settings are for 480i signals the (F) for 480p signals and the (G) is for the 1080i signals.

    What was interesting is that the (4) and (F) red gain settings were set much higher than the (G) settings. I do not have anything other than the dish that will output 1080i so I can not test that particular signal.

    I will continue playing tonight...

    DanEli
     
  15. MichaelFusick

    MichaelFusick Second Unit

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    Keep us posted. More info is always better.

    I am sure as these RPTV's keep selling for the next 10 months, more than a few people are going to want to perform this tweak.
     
  16. MichaelFusick

    MichaelFusick Second Unit

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  17. PatrickLG

    PatrickLG Agent

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    Well thanks everyone. especially MF here!!!

    My 57SWX20B was very good out of the box!! But Im someone who cant leave well enough alone. After a few days with Avia and the above service menu color tweaks. This set is looking magnificent. A week of burn-in. its settling in very well.
    I do have what I think is a color temperature issue as the flashing outer bars with the blue filter in Avia wont match perfectly. Ill probably let this set burn in a few more weeks, and seek out an ISF tech.

    Any ISFs here do the north part of Los Angeles???
    (Northridge, Granada Hills)
     
  18. MichaelFusick

    MichaelFusick Second Unit

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    You should try to center the screen and adjust overscan next...
    Nothing wild, but a nice 3.5% is good.
    Then master convergence and geometry.
    I'll be around to help[​IMG]
     
  19. PatrickLG

    PatrickLG Agent

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    I think the greyscale is too hot. The grey bar on the color bars are almost whit and having trouble getting the blue saturation to match on the bars.
    Dont worry, Ill get around to geometry and convergence soon enough[​IMG]
     
  20. MichaelFusick

    MichaelFusick Second Unit

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    Ever get around to it?
     

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