LAPTOP FORUM

> I wonder if anyone can help me? Ive searched groups.google.com for
> older posts, and whilst some might be helpful none of them deal with
> my specific issue.
>
> I have a Toshiba Satellite 1800-700. Recently the backlight has
> started cutting out, sometimes after flickering a little.
>

> Silas Denyer wrote:
> > I wonder if anyone can help me? Ive searched groups.google.com for
> > older posts, and whilst some might be helpful none of them deal with
> > my specific issue.
> >
> > I have a Toshiba Satellite 1800-700. Recently the backlight has
> > started cutting out, sometimes after flickering a little.
> >
>
> Theres a coincidence. I purchased an 1800-100 a few weeks back but when I
> went to collect it was exhibiting exactly the same problems. The sensor
> switch was restoring it intermittently but it wouldnt stay on. The
vendors
> have sent it off for repair so Ill let you know if they succeed and how
(if
> youll do the same for me).
> --
> Richard Warr
> Stevenage
>

> I wonder if anyone can help me? Ive searched groups.google.com for older
> posts, and whilst some might be helpful none of them deal with my specific
> issue.
>
> I have a Toshiba Satellite 1800-700. Recently the backlight has started
> cutting out, sometimes after flickering a little.
>
> Depressing and releasing the screen sensor harness nib (term culled from
> another post, basically the switch that shuts off the backlight when the
lid
> is closed) causes the backlight to come back on, but often only briefly.
> Physical contact with the case seems to expedite the next failure.
>
> OK, so far sounds like a dodgy lamp / ballast / inverter, but heres the
> rub... The behaviour changes according to the angle of the screen, and
> according to power mode, usage etc., as follows:
>
> 1. Push screen back until almost flat on desk - frequency of problem
reduces
> 2. Use laptop on batteries on knee when lying on sofa - almost no problems
> at all
> 3. Hot weather - frequency of problem increases
> 4. Change APM mode to long life (lower CPU speed, etc.) - frequency of
> problem reduces
> 5. In fact, in general, getting out of my office seems to help no end!
>
> Basically Im stumped. I dont want to fork out for new components if they
> are the wrong ones. I have a suspicion that heat is a factor here (also
had
> problems with the fan failing to start at boot recently, resulting in an
> on-screen message about a failure in the cooling system) - these babies
run
> very hot indeed - but without knowing where all the components are and
where
> the heat paths are I cant comment any further - can anyone help??
>
> Many thanks
>
> Silas
>
> (apologies for cross-posting, but figure both groups are legitimate places
> to post for a London-based boy like me)
>
>

> Silas Denyer wrote:
> > I wonder if anyone can help me? Ive searched groups.google.com for
> > older posts, and whilst some might be helpful none of them deal with
> > my specific issue.
> >
> > I have a Toshiba Satellite 1800-700. Recently the backlight has
> > started cutting out, sometimes after flickering a little.
> >
>
> Theres a coincidence. I purchased an 1800-100 a few weeks back but when I
> went to collect it was exhibiting exactly the same problems. The sensor
> switch was restoring it intermittently but it wouldnt stay on. The
vendors
> have sent it off for repair so Ill let you know if they succeed and how
(if
> youll do the same for me).
> --
> Richard Warr
> Stevenage
>
>

> Lee Marsh wrote:
> > The pins on the inverter have become oxidised! You need to add some
> > anti-oxidant to the FL Inverter pins. Applying Threebond Adhesive to
> > the LCD harness helps the problem as well. I only noticed the problem
> > before on Tecra 8100s and Satpro 4600s, but appears to be evident
> > on the Sat 1800 range as well, of recent!
> >
> > Cheers,
> >
> > Lee.
>
> Thats possibly the most useful post Ive ever seen. Thanks Lee.
> --
> Richard Warr
> Stevenage
>
>

>
> The pins on the inverter have become oxidised! You need to add some
> anti-oxidant to the FL Inverter pins. Applying Threebond Adhesive to the
LCD
> harness helps the problem as well. I only noticed the problem before on
> Tecra 8100s and Satpro 4600s, but appears to be evident on the Sat 1800
> range as well, of recent!
>
> Cheers,
>
> Lee.
>

> >
> > The pins on the inverter have become oxidised! You need to add some
> > anti-oxidant to the FL Inverter pins. Applying Threebond Adhesive to the
> LCD
> > harness helps the problem as well. I only noticed the problem before on
> > Tecra 8100s and Satpro 4600s, but appears to be evident on the Sat
1800
> > range as well, of recent!
> >
> > Cheers,
> >
> > Lee.
> >
> I have posted this message a couple of days ago. Could it be the same
> problem?
> Thx
>
> Floris
>
> --- snip snip ---
> Hi,
>
> Got a Toshiba Pro 6100 for about 1.5 year. Since a couple of months the
tft
> display turns off when the laptop is switched on four a couple of hours.
The
> TV-Out working ok. It seems to be a heat problem. Turning off the laptop
for
> a couple of hours works. Toshiba advised to install the latest BIOS which
> didnt help.
>
> Has any Pro 6100 owner had the similar problems? Can it be fixed easily by
> Toshiba?
>
> I know this Toshiba model is a total disaster. I want to know if I must
> invest time in this laptop or just throw it out of the window. Thanks in
> advance.
>
> Floris Hack