[TechAssist] Re: Sharp M# 25N-M100
- From: "Webster's TV" <webstertv@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 16 Jun 2005 13:27:16 -0500
John,
Thanks for the info, I got into the service menu as you discribed, and made
some changes. You mentioned S02 as being the video level, but it seemed that
S01 had more effect on the video than S02, I had to adjust S01 almost to
full range to get enough contrast to make picture presentable. Is this
normal or OK? Set seems to be working fine now, have let play most of the
morning to make sure everything stayed as is. Now, the picture adjustment
in on-screen menu changes the contrast, and the low contrast picture is 100%
better. It's possible this could of been caused by a power surge, as we have
had alot of storms lately. I was gone last week on a fishing trip and wasn't
here when this call came in, so don't know if it was after a storm or not,
and the elderly lady that it belongs to never mentioned anything about it
going out after a storm. The service manual should be here in a day or two,
will check further when it arrives.
ThanksAgain!
Dan Webster
Webster's TV
ShullsburgWi.
----- Original Message -----
From: "John Mielke" <maintv2004@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, June 15, 2005 5:01 PM
Subject: [TechAssist] Re: Sharp M# 25N-M100
> With all Sharp sets it is common to have corrupted eeprom data, usually
> caused by bad connections or possibly a power surge. To enter service
menu,
> remove AC power, hold channel up and volume up while restoring power. Use
> ch +/- to select menu page, press ch +/- once, use vol +/- to select menu
> page, ch +/- to select item, vol +/- to change value. Turn off to exit.
> Possible problems would be parameter S02, video level, should be 03. S03,
Y
> mute, should be 00. S10, sub contrast, should be 5A. In the third menu
> page are option settings, you may have monitor selected or de-selected but
> you need the manual to get into there. (since you already have it on
> order). BTW, did you check the AV inputs?. Does the OSD have normal
> contrast? Check the output voltage of any 3 leg regulators, it may be
high
> OR low. John.
> John Mielke
> Main TV
> 636 Main St
> Longmont, Co 80501
> 303 776 6955
> 303 776 0792 fax
> www.longmontmaintv.com
> maintv2004@xxxxxxxxxxx
> ----- Original Message -----
> From: "Webster's TV" <webstertv@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, June 15, 2005 1:05 PM
> Subject: [TechAssist] Re: Sharp M# 25N-M100
>
>
> > Phil,
> >
> > Anythings possible I guess, I'm not real familiar with Sharp's(don't see
> too
> > many in my area), so have no idea how to enter service menu, or what
> > parameter you may be talking about. This set belongs to a elderly lady
and
> > her complaint was it had audio, but the picture was black. Turning up
the
> > brightness in on screen menu got the faded(no contrast) picture.
> Brightness
> > adjustment seems to be working OK, except when set at mid range, the
> screen
> > is black, you have to turn brightness up to almost full range to get the
> > image on the screen. I just thought maybe someone had seen this problem
> with
> > this model before, and might have a tip that would point me in the right
> > direction. I will probably end up having to order the schematic, unless
> > someone else has something on this problem. Thanks for the reply.
> >
> > Dan Webster
> > Webster's TV
> > Shullsburg, Wi.
> > ----- Original Message -----
> > From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, June 15, 2005 1:06 PM
> > Subject: [TechAssist] Re: Sharp M# 25N-M100
> >
> >
> > > Some of these Sharps would lose sound. Had to enter serv. menu, reset
a
> > > parameter and sound returned. Wonder if this has a setting corrupted?
> > > Phil Bader
> > >
> > > Philip Bader
> > > Jan Phyl TV Inc. (estab. 1976)
> > > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > > Fax (863) 299-8821
> > > email: tjanphyl@xxxxxxxxxxxxxxx
> > >
> > >
> > >
> > > Webster's TV wrote:
> > >
> > > >Techs,
> > > >Anyone have any tips on this Sharp TV, M# 25N-M100, for no contrast?
> > Everything works on the set except there is no contrast(picture light
and
> > faded), picture control in on-screen menu has no affect, bar on screen
> > increases and decreases, but does not change contrast. I have no
schematic
> > for this set, have checked for poor solder connections and tried cooling
> and
> > heating, with no success. Checked the Sharp tips on tech-assist and
found
> > nothing pretaining to a no contrast problem.
> > > >
> > > > TIA
> > > > Dan Webster
> > > > Webster's
TV
> > > > Shullsburg,
> Wi.
> > >
> >
>
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