Re: Inverter or backlight

On Mon, 30 Mar 2009 16:43:27 -0400, "G.G. Willikers"
<noone@xxxxxxxxxxx> wrote:

bobneworleans@xxxxxxxxx wrote:
On Mar 27, 10:51 pm, Barry Watzman <WatzmanNOS...@xxxxxxxxxx> wrote:
The replacement of lamps sometimes requires complete disassembly of the
panel optical stack. If you don't do this in a clean room (there are
different classes of clean rooms) or at a laminar flow workstation (the
equivalent of a low-class clean room), it is a near certainty that you
will get visible dust inside the optical stack which is a type of defect
in the re-lamped panel.

Barry,
Pardon my jumping into this discussion but I also have a similar
problem on
my Dell Inspiron 8200 and you seem to know what you're talking about.
The
screen flickers a few times then goes black but I can see the image
with a
flashlight. If I leave the laptop off for a few hours, the screen
will work fine
for a while. With the intensity at minimum, the screen will stay on
longer
before it goes dark. Does this almost certainly indicate a dying
inverter?

I read that Dell used several different types of LCD panels on this
model so
I took it apart and found that I have a Hitachi TX38D97VC1CAA. The
inverter
is a 67302700 PH-BLC103. PC Hub has one for about $20 plus shipping
from Singapore but there don't seem to be any of these parts available
here
at a reasonable price.

Can I substitute a Sharp (or some other) inverter for the one I
removed?

Any other advice other than cut my losses and replace the laptop? I
rather
fix it if feasible because I've taken care of it and it's in otherwise
excellent
condition.
Bob
http://cgi.ebay.com/DELL-INSPIRON-8000-8100-8200-C800-C810-Inverter-07K6997_W0QQitemZ370180741332QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item370180741332&_trksid=p3286.c0.m14&_trkparms=72%3A570|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A1|293%3A1|294%3A50

Thanks for the tip but this does not look like mine. Mine looks like
a big capital L in box letters. Besides this one is made by IBM, not
Hitachi. Can an IBM inverter be substituted for a Hitachi inverter? I
presume I can find a way to attach it if it is functionally
equivalent.
.

Relevant Pages

  • Re: Inverter or backlight
    ... If you don't do this in a clean room (there are ... will get visible dust inside the optical stack which is a type of defect ... in the re-lamped panel. ...
    (comp.sys.laptops)
  • Re: Inverter or backlight
    ... equivalent of a low-class clean room), it is a near certainty that you ... will get visible dust inside the optical stack which is a type of defect ... in the re-lamped panel. ...
    (comp.sys.laptops)
  • Re: Inverter or backlight
    ... If you don't do this in a clean room (there are ... will get visible dust inside the optical stack which is a type of defect ... in the re-lamped panel. ...
    (comp.sys.laptops)
  • Re: Inverter or backlight
    ... If you don't do this in a clean room or at a laminar flow workstation, it is a near certainty that you will get visible dust inside the optical stack which is a type of defect in the re-lamped panel. ... It's not necessary UNLESS the panel design requires opening the optical stack, but quite a few LCD panels DO require this to replace the lamp. ...
    (comp.sys.laptops)
  • Re: Inverter or backlight
    ... It is, in general, REALLY hard to know if a backlight problem is the inverter or the lamp. ... I have even gone so far as to setup 2 laptops side by side and connect one laptop's screen to the other laptop's inverter (you have to remove the panel, or you can just swap the inverters). ... For test purposes, as long as the connectors are the same, the lamp should generally light if both the inverter and lamp are good. ... I don't think you can draw any conclusions about the input connectors, and that's a case where I would try a substitution only as a last resort where you can afford to lose the inverter, because the input cable from the laptop to the inverter could be VERY different, in a way that could destroy the inverter. ...
    (comp.sys.laptops)
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