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| Science Forum Index » Electronics - Repair Forum » Sumsung monitor intermittent startup... |
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Message |
| Al Moodie... |
 Posted: Wed Oct 14, 2009 7:11 am |
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Guest
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Hi,
Samsung 931B LCD Monitor
Monitor and computer are switched off overnight.
In the morning I switch on the monitor and computer
The monitor switch button glows blue
Display flickers on and off maybe 5 or six times then dies and monitor
switch light dies also
I turn the switch off then on again, and experience the same result
After I have gone through this procedure maybe 6 or 7 times the
display eventually stays on
No problems with display until the next morning when I have to repeat
the whole process again to get the display running.
Is this repairable. How do I open the case?
Al Moodie |
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| Shaun... |
| Posted: Wed Oct 14, 2009 7:17 pm |
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Guest
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"Al Moodie" <nospam at (no spam) nospam.com> wrote in message
news:jajbd5h7egd793ri594u7a65d9v3uuvt1n at (no spam) 4ax.com...
[quote:934527a2bb]Hi,
Samsung 931B LCD Monitor
Monitor and computer are switched off overnight.
In the morning I switch on the monitor and computer
The monitor switch button glows blue
Display flickers on and off maybe 5 or six times then dies and monitor
switch light dies also
I turn the switch off then on again, and experience the same result
After I have gone through this procedure maybe 6 or 7 times the
display eventually stays on
No problems with display until the next morning when I have to repeat
the whole process again to get the display running.
Is this repairable. How do I open the case?
Al Moodie
[/quote:934527a2bb]
You can open any case with a BIG HAMMER!!
this will also permenantly fix you LCD monitor for good; it will never work
again.
Problem solved. |
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| Franc Zabkar... |
| Posted: Thu Oct 15, 2009 12:44 am |
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Guest
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On Wed, 14 Oct 2009 09:11:06 -0400, Al Moodie <nospam at (no spam) nospam.com> put
finger to keyboard and composed:
[quote:4e75060853]Samsung 931B LCD Monitor
Is this repairable. How do I open the case?
[/quote:4e75060853]
Look for an FCC ID on the label. Then fill in the Grantee Code and
Product Code boxes at this URL:
https://fjallfoss.fcc.gov/oetcf/eas/reports/GenericSearch.cfm
The internal photos should identify the tabs in the cover. With any
luck you may also score a circuit diagram.
- Franc Zabkar
--
Please remove one 'i' from my address when replying by email. |
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| Samantha... |
| Posted: Thu Oct 15, 2009 12:30 pm |
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Guest
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In article <jajbd5h7egd793ri594u7a65d9v3uuvt1n at (no spam) 4ax.com>,
How do I open the case?
I just went through the same with a flat screen... take a look at the
post earlier, the tag is:
Re: DeLL E152FPc Goes black after a second.
Lots of hints on how to open those cases. Also lot of information
pertaining to bad capacitors that were put in these monitors.
see.. http://www.badcaps.net/
Good Luck
S. |
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| ... |
| Posted: Thu Oct 15, 2009 12:34 pm |
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Guest
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On Wed, 14 Oct 2009 09:11:06 -0400, Al Moodie <nospam at (no spam) nospam.com>
wrote:
[quote:1c67c4b30d]Hi,
Samsung 931B LCD Monitor
Monitor and computer are switched off overnight.
In the morning I switch on the monitor and computer
The monitor switch button glows blue
Display flickers on and off maybe 5 or six times then dies and monitor
switch light dies also
I turn the switch off then on again, and experience the same result
After I have gone through this procedure maybe 6 or 7 times the
display eventually stays on
No problems with display until the next morning when I have to repeat
the whole process again to get the display running.
Is this repairable. How do I open the case?
Al Moodie
Yes, it's repairable. These symptoms are typicaly caused by bad[/quote:1c67c4b30d]
capacitors in the power supply. The best way to fix it is by
replacing ALL of the capacitors in the power supply with high
temperature, low ESR caps. I prefer Panasonic FM and FC series, but
other manufacturers also have excellent parts. Digikey is a good
source if you are in the USA.
Opening the case varies by model. Usually you have to remove the
stand, remove any screws holding the back on, then CAREFULLY pry the
two parts apart. I prefer to start at the botton. The tool of choice
varies depending on who you talk to. Some prefer a putty knife,
others a credit card, a guitar pick, or even a thin bladed
screwdriver.
PlainBill |
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| Michael A. Terrell... |
| Posted: Fri Oct 16, 2009 2:08 pm |
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Guest
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PlainBill47 at (no spam) yahoo.com wrote:
[quote:708bcca8f6]
On Wed, 14 Oct 2009 09:11:06 -0400, Al Moodie <nospam at (no spam) nospam.com
wrote:
Hi,
Samsung 931B LCD Monitor
Monitor and computer are switched off overnight.
In the morning I switch on the monitor and computer
The monitor switch button glows blue
Display flickers on and off maybe 5 or six times then dies and monitor
switch light dies also
I turn the switch off then on again, and experience the same result
After I have gone through this procedure maybe 6 or 7 times the
display eventually stays on
No problems with display until the next morning when I have to repeat
the whole process again to get the display running.
Is this repairable. How do I open the case?
Al Moodie
Yes, it's repairable. These symptoms are typicaly caused by bad
capacitors in the power supply. The best way to fix it is by
replacing ALL of the capacitors in the power supply with high
temperature, low ESR caps. I prefer Panasonic FM and FC series, but
other manufacturers also have excellent parts. Digikey is a good
source if you are in the USA.
Opening the case varies by model. Usually you have to remove the
stand, remove any screws holding the back on, then CAREFULLY pry the
two parts apart. I prefer to start at the botton. The tool of choice
varies depending on who you talk to. Some prefer a putty knife,
others a credit card, a guitar pick, or even a thin bladed
screwdriver.
[/quote:708bcca8f6]
Sometimes a thumbnail is the best tool, becsue you can feel the
latches as you slide it along the seam. :)
--
The movie 'Deliverance' isn't a documentary! |
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| Bob Larter... |
| Posted: Sat Oct 17, 2009 9:00 am |
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Guest
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Michael A. Terrell wrote:
[quote:3b751558bd]PlainBill47 at (no spam) yahoo.com wrote:
On Wed, 14 Oct 2009 09:11:06 -0400, Al Moodie <nospam at (no spam) nospam.com
wrote:
Hi,
Samsung 931B LCD Monitor
Monitor and computer are switched off overnight.
In the morning I switch on the monitor and computer
The monitor switch button glows blue
Display flickers on and off maybe 5 or six times then dies and monitor
switch light dies also
I turn the switch off then on again, and experience the same result
After I have gone through this procedure maybe 6 or 7 times the
display eventually stays on
No problems with display until the next morning when I have to repeat
the whole process again to get the display running.
Is this repairable. How do I open the case?
Al Moodie
Yes, it's repairable. These symptoms are typicaly caused by bad
capacitors in the power supply. The best way to fix it is by
replacing ALL of the capacitors in the power supply with high
temperature, low ESR caps. I prefer Panasonic FM and FC series, but
other manufacturers also have excellent parts. Digikey is a good
source if you are in the USA.
Opening the case varies by model. Usually you have to remove the
stand, remove any screws holding the back on, then CAREFULLY pry the
two parts apart. I prefer to start at the botton. The tool of choice
varies depending on who you talk to. Some prefer a putty knife,
others a credit card, a guitar pick, or even a thin bladed
screwdriver.
Sometimes a thumbnail is the best tool, becsue you can feel the
latches as you slide it along the seam. 
[/quote:3b751558bd]
I used to use a blank PC card slot cover, with the pointy end filed down
a little.
--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^--------------------------------------------------------------- |
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| Michael A. Terrell... |
| Posted: Sat Oct 17, 2009 4:23 pm |
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Guest
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Bob Larter wrote:
[quote:391c1ac8ef]
Michael A. Terrell wrote:
Sometimes a thumbnail is the best tool, because you can feel the
latches as you slide it along the seam. :)
I used to use a blank PC card slot cover, with the pointy end filed down
a little.
[/quote:391c1ac8ef]
If you can use your thumbnail, you don't have to worry about
scratching the case. :)
--
The movie 'Deliverance' isn't a documentary! |
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| Al Moodie... |
| Posted: Thu Nov 05, 2009 8:00 am |
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Guest
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Hi,
Not exactly a repair but I've found that if I turn the monitor switch
on first thing in the morning, then go do something else for 10
minutes, when I come back there is no display, but then if I turn the
switch off and on again the display stabilizes after a few flickers.
Al Moodie. |
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