Monitor

[Capt K Ripendran]

I have a HP Pavilion 6511 preloaded with Windows 98 SE. The 14" Monitor is a
HP Pavilion M50 CRT model No D5258A.

I am unable to adjust using the front buttons as they are all JAMMED.

Is there anyway, I could have them FREED?

Thanking you
Capt K Ripendran

 

[thanatoid]

Re: Monitor

"Capt K Ripendran" <ripendran@dataone.in> wrote in
news:Ojlay7QwHHA.3684@TK2MSFTNGP02.phx.gbl:

> I have a HP Pavilion 6511 preloaded with Windows 98 SE. The
> 14" Monitor is a HP Pavilion M50 CRT model No D5258A.
>
> I am unable to adjust using the front buttons as they are
> all JAMMED.
>
> Is there anyway, I could have them FREED?
>
> Thanking you
> Capt K Ripendran

Go to a PROFESSIONAL electronics supply store (the kind no one
knows about and you have to look for) and ask for a spray
"contact cleaner" (Miller-Stephenson is a good brand, there are
others equally good). It will cost you 10 or 15 bucks but will
last a long time and has endless uses. An adjustable-force spray
nozzle is nice.

Put the straw into the nozzle and spray the hell out of the
buttons - with the monitor unplugged. Put a paper towel over
what you are doing or it will get all over everything (even with
nozzle set to "low") - although it dries with "no residue",
still... Push the buttons fast and as many times as you can
immediately after spraying. Don't be afraid to press hard.
Repeat if necessary.

It will work better if you can manage to take the cover off
the monitor and get at the buttons "from behind". But that's a
little tricky and potentially dangerous - you might as well have
a repair shop do the whole job. Shouldn't cost much.

If the buttons won't budge no matter what, you WILL have to get
the thing open (see above warning) and see what the problem is -
it IS possible to replace the switches, you can get almost any
switch (the button is just a piece of plastic in front of the
switch itself) very cheaply from places like www.mouser.com (but
then you have to solder them in place).

If you don't care about the smell etc, WD-40 would probably work
equally well. Some people claim it corrodes or melts certain
materials, but I have used it for over 30 years with excellent
results every time.

--
Any mental activity is easy if it need not be subjected to
reality.

 

[glee]

Re: Monitor

This appears to be your monitor:
http://h10032.www1.hp.com/ctg/Manual/bph07336.pdf

We have one just like it at work....sorry but I can't add anything to what thanatoid
has already posted.

Franc Zabkar is very knowledgable about monitors; perhaps he will reply with some
further thoughts.
--
Glen Ventura, MS MVP Shell/User, A+
http://dts-l.org/
http://dts-l.org/goodpost.htm


"Capt K Ripendran" <ripendran@dataone.in> wrote in message
news:Ojlay7QwHHA.3684@TK2MSFTNGP02.phx.gbl...
>I have a HP Pavilion 6511 preloaded with Windows 98 SE. The 14" Monitor is a HP
>Pavilion M50 CRT model No D5258A.
>
> I am unable to adjust using the front buttons as they are all JAMMED.
>
> Is there anyway, I could have them FREED?
>
> Thanking you
> Capt K Ripendran
>

 

[Franc Zabkar]

Re: Monitor

On 08 Jul 2007 03:57:39 GMT, thanatoid <waiting@the.exit.invalid> put
finger to keyboard and composed:

>If you don't care about the smell etc, WD-40 would probably work
>equally well. Some people claim it corrodes or melts certain
>materials, but I have used it for over 30 years with excellent
>results every time.

All I can say is that my personal experience is the exact opposite of
yours.

If you read through some of the discussions (and flame wars) at
sci.electronics.repair, you will find that, although a few people
swear by WD40, most people, including its manufacturer, do not
recommend using it for anything other than its stated purpose.

Here are a few threads on the subject.

Fixing flaky buttons:
http://tinyurl.com/34pqwx

Safe to use WD40 as switch or potentiometer cleaner?
http://tinyurl.com/2khrqu

And this is my own experience:

WD40 - how to clean up the mess?
http://tinyurl.com/39dws5

I'm not surprised that Wikipedia dedicates an entire article to this
product:
http://en.wikipedia.org/wiki/Wd40

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

 

[thanatoid]

Re: Monitor

Franc Zabkar <fzabkar@iinternode.on.net> wrote in
news:n39593diutqp9nubn524pdd32aakckacql@4ax.com:

<SNIP>

> If you read through some of the discussions (and flame
> wars) at sci.electronics.repair, you will find that,
> although a few people swear by WD40, most people, including
> its manufacturer, do not recommend using it for anything
> other than its stated purpose.

Are you saying that rubbing it on your forearms to reduce
arthritic pain (which I read about in the National Enquirer many
years ago) DOES NOT WORK????!!!!

I know, it's one of those endless subjects. I should have
probably not mentioned the product in the first place. Like it
is better not to mention yEnc in some image groups.

<SNIP>

--
Any mental activity is easy if it need not be subjected to
reality.

 

[thanatoid]

Re: Monitor

Franc Zabkar <fzabkar@iinternode.on.net> wrote in
news:n39593diutqp9nubn524pdd32aakckacql@4ax.com:

Actually, when I am faced with similar problems, I open the
thing up (remote controls require this quite often, unbelievable
what you find inside), take it all apart, and just wash all the
parts with soap and warm water and reassemble when completely
dry. But it didn't sound like the OP should be opening the
monitor. WWOTS, I wonder WHAT the hell happened to make the
buttons totally stuck? If they were (old-style) keyboard keys,
then a spilled milkshake or something could be responsible, but
buttons on a vertical surface?

Of course, help groups and eternal gratitude Usenet-style being
what they are, we'll never know.

BTW, I once spilled a whole just-opened can of Coke (WITH sugar
and caffeine) onto/into an electronically-controlled (AOT
mechanical which many other brands were) Moviola 16mm flatbed
editing machine. Nothing happened. I cleaned it up of course,
but there were NO ill effects. Good thing, I certainly was not
about to open THAT thing up.

Also, just read the contents of your links and found them very
entertaining and slightly informative (I didn't know about it
dissolving capacitors, but have read before that it may
disintegrate certain very rare plastics or plastic-like
materials).

Then again I would never advise anyone to spray it onto a
circuit board, let alone liberally into the VCR tape cavity (I
could not BELIEVE that part!) We were just talking about simple
switches, and it was an alternate suggestion.

[And I usually (foolish, I know) assume that most people are not
complete idiots. (2 days ago a guy in a supermarket pointed to
plain white milk and chocolate- and strawberry-flavored milk
right next to it and asked me if I knew what the difference
was... And he was NOT interested in what artificial coloring was
used... He just apparently didn't know the difference between
white and chocolate or strawberry.)]

Still, BION, I *HAVE* sprayed WD-40 (very carefully, of course)
into a few volume controls with excellent and years-lasting
results.

Of course, when I DO have a choice between something like
Miller-Stephenson and WD-40, I use the former.

And the best thing for cleaning gunk was always Freon. (In spite
of what everyone is told, still happily manufactured in the USA
and exported to and sold over the counter (as refrigerant, not
cleaning spray) all over the third world - or at least the part
of it I am familiar with.)


--
Any mental activity is easy if it need not be subjected to a WD-
40 bath.

 

[Franc Zabkar]

Re: Monitor

On Sun, 8 Jul 2007 08:50:24 +0530, "Capt K Ripendran"
<ripendran@dataone.in> put finger to keyboard and composed:

>I have a HP Pavilion 6511 preloaded with Windows 98 SE. The 14" Monitor is a
>HP Pavilion M50 CRT model No D5258A.
>
>I am unable to adjust using the front buttons as they are all JAMMED.
>
>Is there anyway, I could have them FREED?
>
>Thanking you
>Capt K Ripendran

You might try asking the techs at sci.electronics.repair.

Otherwise you will need to explain yourself a bit better. By "all
jammed", if you mean mechanically jammed, ie no tactile response, then
I would suspect that some fixture has come adrift inside the monitor.
If you mean electrically jammed, then I suspect that one button is
stuck on and is hanging up the microprocessor that scans the switch
matrix.

Here are some photos of a pushbutton actuator assembly out of an old
TV:
http://www.users.on.net/~fzabkar/PushButton/

Each lever bears against a miniature button switch on a PCB. Sometimes
the plastic levers break. They can sometimes be repaired by cutting a
straight section of wire from the end of a spring and soldering it
across the break. Your monitor may or may not have a similar
arrangement.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

 

[Capt K Ripendran]

Re: Monitor

Thank you ALL for the input. Regret my belated response!

That is a good question Franc Zabkar. It seems to be "electrically jammed,
with one button being stuck and hanging up the microprocessor that scans the
switch matrix". Glen Ventura has given a picture of the monitor in his post.

All I can say is that nothing has been spilt on the vertical surface. I had
cleaned the inside of the monitor with a blower! Perhaps, some dust may have
clogged the button/s?!

In the absence of a "contact cleaner", can I try Thanatoid's soap & warm
water method? Are the inside of the buttons accessible for such a cleaning?

Thanking you
Capt K Ripendran


"Franc Zabkar" <fzabkar@iinternode.on.net> wrote in message
news:kh8693p6kelmelf2up1lc8nlckio0qqpo4@4ax.com...
> On Sun, 8 Jul 2007 08:50:24 +0530, "Capt K Ripendran"
> <ripendran@dataone.in> put finger to keyboard and composed:
>
> >I have a HP Pavilion 6511 preloaded with Windows 98 SE. The 14" Monitor
is a
> >HP Pavilion M50 CRT model No D5258A.
> >
> >I am unable to adjust using the front buttons as they are all JAMMED.
> >
> >Is there anyway, I could have them FREED?
> >
> >Thanking you
> >Capt K Ripendran
>
> You might try asking the techs at sci.electronics.repair.
>
> Otherwise you will need to explain yourself a bit better. By "all
> jammed", if you mean mechanically jammed, ie no tactile response, then
> I would suspect that some fixture has come adrift inside the monitor.
> If you mean electrically jammed, then I suspect that one button is
> stuck on and is hanging up the microprocessor that scans the switch
> matrix.
>
> Here are some photos of a pushbutton actuator assembly out of an old
> TV:
> http://www.users.on.net/~fzabkar/PushButton/
>
> Each lever bears against a miniature button switch on a PCB. Sometimes
> the plastic levers break. They can sometimes be repaired by cutting a
> straight section of wire from the end of a spring and soldering it
> across the break. Your monitor may or may not have a similar
> arrangement.
>
> - Franc Zabkar
> --
> Please remove one 'i' from my address when replying by email.

 

[Franc Zabkar]

Re: Monitor

On Wed, 1 Aug 2007 09:44:04 +0530, "Capt K Ripendran"
<ripendran@dataone.in> put finger to keyboard and composed:

>Thank you ALL for the input. Regret my belated response!
>
>That is a good question Franc Zabkar. It seems to be "electrically jammed,
>with one button being stuck and hanging up the microprocessor that scans the
>switch matrix". Glen Ventura has given a picture of the monitor in his post.
>
>All I can say is that nothing has been spilt on the vertical surface. I had
>cleaned the inside of the monitor with a blower! Perhaps, some dust may have
>clogged the button/s?!
>
>In the absence of a "contact cleaner", can I try Thanatoid's soap & warm
>water method? Are the inside of the buttons accessible for such a cleaning?
>
>Thanking you
>Capt K Ripendran


So you have a physical problem with *one* button that is making all
the other buttons look bad?

If so, then I'd lay the monitor down on its face on a towel or soft
cloth, remove the back, and use my common sense. Either the plastic
button is physically jammed, or the switch behind it is permanently
closed. Check the switch for "clickiness" or measure its resistance
with a multimeter.

BTW, I'm assuming that you're not talking about the on/off switch.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.