[ICOM] ICOM 746PRO Screen Brightness from K3JK

[· Don Joe · eM@ilman ' LU1ARV ']

Hello Dick!
Completely ok!   
I have not read on many burnt LCD about IC-746PRO.
Thanks
JL (save mode)


> My understanding is that the display module is a 
> constant-current assembly.  What power isn't 
> dissipated by the display is dissipated by a 
> discrete component behind the display.  The 
> brighter the display--the more current it 
> uses--the less power that needs to be dissipated 
> by this other discrete component.
>
> The problem originates when the heat-dissipating 
> component behind (I'm not sure exactly where it 
> is) the display has to dissipate too much heat 
> for too long.  Maximizing the screen brightness 
> has the effect of reducing the heat that needs to 
> be dissipated by this second component.  Ergo, it 
> lasts longer and the display assembly lasts longer.
>
> I have a friend who would leave his radio on 24/7 
> and only turn the display brightness down when he 
> wasn't using it (didn't want to "burn the 
> display").  When he eventually received his radio 
> back from ICOM Service, they told him to leave the brightness up.  :)
>
> Dick
>
> At 04:13 AM 11/18/2008, · Don Joe · eM at ilman  ' LU1ARV ' wrote:
>  >Hello Vlad!
>  >In IC-756: It is an adjustment problem practice of the user or it was
>  >a problem of the LCD installed by Icom. Strange that didn't have
>  >necessity to change it.
>  >Already for these years it should not have problems!!
>  >José, tks
>  >
>  >
>  >> I used to have an IC-756. A couple of years after I started using it with
>  >> the brightness set up at maximum, there came the blue lines on the LCD.
>  >> After some adjustments of brightness and contrast I managed to find a
>  >> combination where the lines disappeared. Then the radio has been sold. The
>  >> actual user is still running the radio 
> keeping these adjustments untouched,
>  >> and there are no blue lines seen ever since. 
> Indeed, the brightness is below
>  >> the maximum.
>  >>
>  >> 73,
>  >> Vladimir VE3IAE
>  >>
>  >> ---
>  >>
>  >>>>> It is a well known fact that the brightness setting needs to be set at
>  >>>>> 100 percent per ICOM. The contrast setting has nothing to do with the
>  >>>>> possible failure, Gil
>  >>
>  >> --- On Tue, 11/18/08, · Don Joe · eM at ilman  ' LU1ARV '
>  >> <estacion at bsmail.com.ar> wrote:
>  >>
>  >>> From: · Don Joe · eM at ilman  ' LU1ARV ' <estacion at bsmail.com.ar>
>  >>> Subject: [ICOM] ICOM  746PRO Screen Brightness from  K3JK
>  >>> To: "ICOM Reflector" <icom at mailman.qth.net>
>  >>> Date: Tuesday, November 18, 2008, 5:41 AM
>  >>> Hello! But, then it doesn't suit, it doesn't serve,
>  >>> to give him little-few shine to save the LCD screen ? There
>  >>> is that configurate at 50% bright and 50% contrast or
>  >>> more...? What parameters ?
>  >>> Thanks
>  >>> José
>  >>>
>  >>>
>  >>>
>  >>> > thank you Ed for relating that information about the
>  >>> screen brightness.
>  >>> > John K3JK
>  >>> >
>  >>> > ----- Original Message -----
>  >>> > From: "Ed Myers" <emyers2 at cox.net>
>  >>> > To: <icom at mailman.qth.net>
>  >>> > Sent: Tuesday, November 18, 2008 12:38 AM
>  >>> > Subject: [ICOM] RE: ICOM 746PRO Screen Brightness from
>  >>> K3JK
>  >>> >
>  >>> >> My 746 PRO has been repaired by an ICOM service
>  >>> facility after a display
>  >>> >> illumination failure.
>  >>> >> I was instructed to run the display at full
>  >>> brightness to preclude another
>  >>> >> failure.
>  >>> >>
>  >>> >> Ed WC4TT
>  >
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>  >
>  >----
>  >Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>  >Icom Users Net: Sundays, 1700Z, 14.316 MHz
>  >Icom FAQ: http://www.qsl.net/icom/
> --
> Dick Flanagan K7VC
> dick at k7vc.com
>
> ----
> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/



------------------------------------------------------------------------------
Esta casilla de correo ha sido obtenida ¡GRATUITAMENTE!
Usted puede tener también su propio WEBMAIL con su nombre y consultar 
sus correos diariamente en www.supervielle.com, el sitio del banco 
Supervielle Argentina.