Toshiba TV29C90 problem; Image fades to black...

Thomas' Calculus, Early Trascendentals 10th ed Instructors Solutions

could you send me this solution??

i really need it
thank you

herman0112@gmail.com

 

[Arfa Daily]

"Christophe Siquet" <csiquet@hotmail.com> wrote in message
news:4729f7ed$0$1802$a729d347@news.telepac.pt...

Hello,

I acquired a second hand graphic card (Abit Siluro GF4 Ti4600) and,
unfortunately, it has a problem
It seems that there is a bad connection somewhere on the card that makes
my screen look like the file attached to this message with random
flickering pixels.
When Windows starts, I'm in safe VGA mode and it seems that this awesome
AGP4x card is reduced to nothing.
However, if I pause the booting, press on the card here or there to stop
the flickering and reboot, everything is fine for a time (until the
connection is bad again I believe).
I have been using the VGA output and I wanted to try the DVI one just to
see that the problem is (or not) there but I haven't done it yet.

Is there anyone familiar with this kind of problem and could tell me where
to look or what to do?

Thank you.

I don't know that you will be able to get to the bottom of that problem.

Multilayer boards like those found in PCs, which have pressure-sensitve
intermittent problems, are often suffering from either bad thru' plated
holes, or badly flowed solder under BGA chips. You might be able to get
closer to the problem by careful probing with something like a ball point
pen, but failing that turning up anything easily spot-able or fixable,
you're probably going to be on a loser. What is much more interesting, is
that your attached picture has gotten through. I wasn't aware that this
group was set up to accept picture attachments. I'm sure that people have
tried before, but always finish up having to post pictures and
illustrations, on third party websites. Am I wrong on this, or has something
changed recently ?

Arfa

 

[Meat Plow]

On Thu, 01 Nov 2007 18:22:50 +0000, Arfa Daily wrote:

"Christophe Siquet" <csiquet@hotmail.com> wrote in message
news:4729f7ed$0$1802$a729d347@news.telepac.pt...
Hello,

I acquired a second hand graphic card (Abit Siluro GF4 Ti4600) and,
unfortunately, it has a problem
It seems that there is a bad connection somewhere on the card that makes
my screen look like the file attached to this message with random
flickering pixels.
When Windows starts, I'm in safe VGA mode and it seems that this awesome
AGP4x card is reduced to nothing.
However, if I pause the booting, press on the card here or there to stop
the flickering and reboot, everything is fine for a time (until the
connection is bad again I believe).
I have been using the VGA output and I wanted to try the DVI one just to
see that the problem is (or not) there but I haven't done it yet.

Is there anyone familiar with this kind of problem and could tell me where
to look or what to do?

Thank you.

I don't know that you will be able to get to the bottom of that problem.
Multilayer boards like those found in PCs, which have pressure-sensitve
intermittent problems, are often suffering from either bad thru' plated
holes, or badly flowed solder under BGA chips. You might be able to get
closer to the problem by careful probing with something like a ball point
pen, but failing that turning up anything easily spot-able or fixable,
you're probably going to be on a loser. What is much more interesting, is
that your attached picture has gotten through. I wasn't aware that this
group was set up to accept picture attachments. I'm sure that people have
tried before, but always finish up having to post pictures and
illustrations, on third party websites. Am I wrong on this, or has something
changed recently ?

If OP's the server accepts the post it will be sent out the backbone. It's
up to each receiving server's filter rules then to reject or accept the
post. Those that offer free/cheap text reading never accept posts with
attachments in text only groups.

As far as the video card problem goes, having 4 or 5 layers and the
associated interconnections prohibits this kind of servicing unless it's
blatantly obvious.

 

[Jerry G.]

Without the scanner connected to the computer and seeing the drivers
and software, it will not properly respond. You will have to install
the software and connect the scanner to properly test it.

Make sure the power supply you are using with it is properly rated, or
the the scanner may not work properly, or be damaged.


Jerry G.
======



On Oct 31, 1:04 pm, Peabody <waybackNO784SPA...@yahoo.com> wrote:

I inherited one of these from a friend, but it has no power supply,
no CD-ROM, just the scanner. I rigged up a 12V power supply for it,
and a couple lights come on, but it's not clear the thing is still
alive. Before installing the 60mb of software I found at HP, I'd
like to make sure the scanner isn't obviously DOA.

Without connecting it to the computer, when I just power up the
scanner, I get two LEDs - the Power Save LED on the left, and the
Color indicator on the right. There's nothing in the little LCD
window. Pushing the Power Save toggle button has no effect - the
LED stays on.. The same is true with the Color/B&W toggle button.
No other buttons have any effect.

Is this normal for a powered-up but unconnected 4470C? Is there any
kind of stand-alone powerup self test I can make it do?

Thanks for any help.

 

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send me bp

 

[Erica Eshoo]

On Sun, 04 Nov 2007 08:43:26 -0800, bluerhinoceros wrote:

Here is the freeware/demoware that PC World suggests at
http://www.pcworld.com/video/catid,1610-page,1/video.html
How to Resurrect a Crashed Hard Drive - PC World Video
Electrical recovery for not spinning drives
- Connect to a high wattage power supply

I don't understand this one.
the video implies that the power supply "pushes"
the current rather than allowing the device to draw it.

I agree with you - this is a wierd suggestion by PC World.
But, I can tell you watched the video because that's exactly what it says.

PC World seems to imply that a larger capacity power supply INITIAL
current/voltage (they call it wattage) surge into the reluctant disk drive
could JOLT the dead disk drive into cooperating - sort of like a Taser for
reticent hard disks.

http://www.pcworld.com/video/catid,1610-page,1/video.html
Does anyone else know more about this PC World suggestion to resurrect my
dead but spinning hard drive - is it science or is it voodoo?

 

[Erica Eshoo]

On Sun, 04 Nov 2007 06:11:08 -0500, Lee wrote:

I thought you just needed 25 character string, on the CD or the
holigraphic label on the laptop/PC case.
It is normally asked for whem one does a complete initial install, or
first start of Laptop
It also asks if you change motherboard, hard drive or network card.

My kid's laptop didn't come with a CD for Windows.
It just came with Windows XP on it.Then the hard disk drive crashed.

When I put a spare hard drive I had lying around in, up came this message
about Windows Activation being needed before I could log in. OK. Fine.

But, the Windows Activation window just came up blue and blank with no
buttons, no action, no words, no nuthin'. I waited an hour and still
nothing. I plugged into a live ethernet, and did a hardware reboot, and
still nothing when it came up the same way.

What's wrong with Windows Activation?

 

[Erica Eshoo]

On Sun, 4 Nov 2007 09:28:42 -0800, Eric Gisin wrote:

The heads will not load unless spindle is spinning.
Therefore, you cannot have clicking without spinning.
PC World is full of shit.
http://www.pcworld.com/video/catid,1610-page,1/video.html
How to Resurrect a Crashed Hard Drive - PC World Video
PC World says the freezer trick will only work for a clicking but not
spinning hard disk drive.

Interesting!

So, you're saying that, since I clearly hear a sequence of initial loud
clicks (about a score of them in about as many seconds) in the naked laptop
hard disk drive hooked up to the USB port via the IDE-to-USB adapter ...
then my drive is spinning for sure because it's clicking?

I had already realized it was spinning because when I pressed on the top of
the hard disk drive, I could hear a whirr as I made something touch
something else.

I've already put a spare hard disk in the kid's laptop - but now I have an
activation problem. I can't get past the activation screen which just
hangs. I'm sure the hard disk has a valid WinXP but obviously for another
laptop (not the one I put it in) - so I'm not surprised the Winxp OS balked
.... but shouldnt' Windows XP give me the opportunity to enter whatever
information it needs?

How do I enter whatever information it needs if it just comes up with a
blank Windows Activation box which hangs for hours with no way to enter
anything.

Why is the world punishing me! Was I a bad girl or something!

 

[Baron]

Erica Eshoo wrote:

On Sun, 04 Nov 2007 08:43:26 -0800, bluerhinoceros wrote:

Here is the freeware/demoware that PC World suggests at
http://www.pcworld.com/video/catid,1610-page,1/video.html
How to Resurrect a Crashed Hard Drive - PC World Video
Electrical recovery for not spinning drives
- Connect to a high wattage power supply

I don't understand this one.
the video implies that the power supply "pushes"
the current rather than allowing the device to draw it.

I agree with you - this is a wierd suggestion by PC World.
But, I can tell you watched the video because that's exactly what it
says.

PC World seems to imply that a larger capacity power supply INITIAL
current/voltage (they call it wattage) surge into the reluctant disk
drive could JOLT the dead disk drive into cooperating - sort of like a
Taser for reticent hard disks.

http://www.pcworld.com/video/catid,1610-page,1/video.html
Does anyone else know more about this PC World suggestion to resurrect
my dead but spinning hard drive - is it science or is it voodoo?

Urban myth!

--
Best Regards:
Baron.

 

[Baron]

Erica Eshoo wrote:

On Sun, 4 Nov 2007 09:28:42 -0800, Eric Gisin wrote:
The heads will not load unless spindle is spinning.
Therefore, you cannot have clicking without spinning.
PC World is full of shit.
http://www.pcworld.com/video/catid,1610-page,1/video.html
How to Resurrect a Crashed Hard Drive - PC World Video
PC World says the freezer trick will only work for a clicking but
not spinning hard disk drive.

Interesting!

So, you're saying that, since I clearly hear a sequence of initial
loud clicks (about a score of them in about as many seconds) in the
naked laptop hard disk drive hooked up to the USB port via the
IDE-to-USB adapter ... then my drive is spinning for sure because it's
clicking?

I had already realized it was spinning because when I pressed on the
top of the hard disk drive, I could hear a whirr as I made something
touch something else.

I've already put a spare hard disk in the kid's laptop - but now I
have an activation problem. I can't get past the activation screen
which just hangs. I'm sure the hard disk has a valid WinXP but
obviously for another laptop (not the one I put it in) - so I'm not
surprised the Winxp OS balked ... but shouldnt' Windows XP give me the
opportunity to enter whatever information it needs?

How do I enter whatever information it needs if it just comes up with
a blank Windows Activation box which hangs for hours with no way to
enter anything.

Why is the world punishing me! Was I a bad girl or something!

The copy of wins on the drive doesn't like the changed hardware that it
sees when it trys to boot. Re-install time.........;-(

--
Best Regards:
Baron.

 

[Rod Speed]

Erica Eshoo <evesunflor@sbcglobal.net> wrote:

On Sun, 4 Nov 2007 09:28:42 -0800, Eric Gisin wrote:
The heads will not load unless spindle is spinning.
Therefore, you cannot have clicking without spinning.
PC World is full of shit.
http://www.pcworld.com/video/catid,1610-page,1/video.html
How to Resurrect a Crashed Hard Drive - PC World Video
PC World says the freezer trick will only work for a clicking but
not spinning hard disk drive.

Interesting!

So, you're saying that, since I clearly hear a sequence of initial
loud clicks (about a score of them in about as many seconds) in the
naked laptop hard disk drive hooked up to the USB port via the
IDE-to-USB adapter ... then my drive is spinning for sure because
it's clicking?

I had already realized it was spinning because when I pressed on the
top of the hard disk drive, I could hear a whirr as I made something
touch something else.

I've already put a spare hard disk in the kid's laptop - but now I
have an activation problem. I can't get past the activation screen
which just hangs. I'm sure the hard disk has a valid WinXP but
obviously for another laptop (not the one I put it in) - so I'm not
surprised the Winxp OS balked ... but shouldnt' Windows XP give me
the opportunity to enter whatever information it needs?

How do I enter whatever information it needs if it just comes up with
a blank Windows Activation box which hangs for hours with no way to
enter anything.

Why is the world punishing me! Was I a bad girl or something!

Yep, it was that furious drunken grave dancing that you were warned about.

You wouldnt listen...

 

[Rod Speed]

Erica Eshoo <evesunflor@sbcglobal.net> wrote:

On Sun, 04 Nov 2007 08:43:26 -0800, bluerhinoceros wrote:

Here is the freeware/demoware that PC World suggests at
http://www.pcworld.com/video/catid,1610-page,1/video.html
How to Resurrect a Crashed Hard Drive - PC World Video
Electrical recovery for not spinning drives
- Connect to a high wattage power supply

I don't understand this one.
the video implies that the power supply "pushes"
the current rather than allowing the device to draw it.

I agree with you - this is a wierd suggestion by PC World.
But, I can tell you watched the video because that's exactly what it
says.

PC World seems to imply that a larger capacity power supply INITIAL
current/voltage (they call it wattage) surge into the reluctant disk
drive could JOLT the dead disk drive into cooperating - sort of like
a Taser for reticent hard disks.

http://www.pcworld.com/video/catid,1610-page,1/video.html
Does anyone else know more about this PC World suggestion
to resurrect my dead but spinning hard drive - is it science

Its always science. Tho rather mangled in the case of that article.

or is it voodoo?

Hard drives are immune to that.

 

[Erica Eshoo]

On Mon, 5 Nov 2007 06:12:24 +1100, Rod Speed wrote:

but the video implies that the power supply "pushes" the current
Just a clumsy description.

I think I get what Rod Speed is saying.
When I start my blender, the lights dim for a second in my California
kitchen. Then everything is fine.

I think what Rod Speed is saying is, if the hard disk drive motor is
drawing too much current for the original power supply to handle, then
adding a larger capacity (more current) power supply, will allow it to draw
more current than the original power supply could handle.

That, in an emergency situation such as mine, might be the way to free a
"stuck" drive.

As noted, my drive isn't stuck - it's just clicking and spinning until the
clicking gives up ... so I think I'll give up on the larger power supply.
Plus, I'm using the Vantec IDE-to-USB adapter which comes with its own
power supply.

Funny thing, the hard drives I tested STILL WORK on the Vantec IDE-to-USB
adapter even without plugging in the external power supply. I guess they
get power from the USB - but I'll use the external power supply also to
power the naked laptop hard disk drive.

The good thing is we're learning - the bad thing is that we probably can't
use any freeware on earth to resurrect this drive ... or can we?

 

[Erica Eshoo]

On Sun, 04 Nov 2007 20:18:40 GMT, Franklin wrote:

http://web.ukonline.co.uk/morgan.tate/

Interesting article.
It's an IBM laptop so it has a Hitachi 2.5" hard disk drive in it, not an
IBM desktop hard drive.
But, in the end, if I don't resurrect the disk by less drastic means, it
will be time to go in for the kill and rip the innards out and put them in
another drive. But that's for later.

For now, I found the IBM Thinkpad recovery disks and have re-instaleld the
operating system - having given up on the buggy Windows Activation (it
should at least have given me the chance to type SOMETHING in - and not
just hang like that).

The good news is the computer is back up - the bad news is I have to
install all the programs all over again, like WinXP SP2 and all the
updates. For example, I have to dig up how to load Wireless Zero
Configuration stuff so that WPA2-Personal works again (it's not even an
option in SP2 - I remember digging that one up on google so I'll dig it
up).

If you know of better freeware that can diagnose this hard drive, let me
know.

 

[Don Kirkman]

It seems to me I heard somewhere that Erica Eshoo wrote in article
<lVnXi.138$TR5.95@nlpi061.nbdc.sbc.com>:

On Sun, 04 Nov 2007 08:43:26 -0800, bluerhinoceros wrote:

Here is the freeware/demoware that PC World suggests at
http://www.pcworld.com/video/catid,1610-page,1/video.html
How to Resurrect a Crashed Hard Drive - PC World Video
Electrical recovery for not spinning drives
- Connect to a high wattage power supply

I don't understand this one.
the video implies that the power supply "pushes"
the current rather than allowing the device to draw it.

I agree with you - this is a wierd suggestion by PC World.
But, I can tell you watched the video because that's exactly what it says.

PC World seems to imply that a larger capacity power supply INITIAL
current/voltage (they call it wattage) surge into the reluctant disk drive
could JOLT the dead disk drive into cooperating - sort of like a Taser for
reticent hard disks.

Wattage, as everybody here seems to agree, is the actual power consumed
by a device; the wattage rating on a power supply is the highest power
it's capable of or designed to supply. Amperage is only drawn to the
level required by a device; if a device is not defective it will only
draw up to its rated amperage and the supply has to be able to meet that
demand. Voltage higher than the designed operating voltage of a device
may damage or ruin the device. ISTM PC World must be outsourcing its
technical writers these days.

 

[Rod Speed]

Erica Eshoo <evesunflor@sbcglobal.net> wrote:

On Mon, 5 Nov 2007 06:12:24 +1100, Rod Speed wrote:
but the video implies that the power supply "pushes" the current
Just a clumsy description.

I think I get what Rod Speed is saying.
When I start my blender, the lights dim for a second in my California
kitchen. Then everything is fine.

I think what Rod Speed is saying is, if the hard disk drive motor is
drawing too much current for the original power supply to handle, then
adding a larger capacity (more current) power supply, will allow it
to draw more current than the original power supply could handle.

That, in an emergency situation such as mine, might be the way to
free a "stuck" drive.

As noted, my drive isn't stuck - it's just clicking and spinning
until the clicking gives up ... so I think I'll give up on the larger
power supply. Plus, I'm using the Vantec IDE-to-USB adapter which
comes with its own power supply.

Funny thing, the hard drives I tested STILL WORK on the Vantec
IDE-to-USB adapter even without plugging in the external power
supply. I guess they get power from the USB - but I'll use the
external power supply also to power the naked laptop hard disk drive.

The good thing is we're learning - the bad thing is that we probably
can't use any freeware on earth to resurrect this drive ... or can we?

Nope, its got a hardware problem, thats why it isnt seen by the OS.

 

[James Sweet]

"Erica Eshoo" <evesunflor@sbcglobal.net> wrote in message
news:GOpXi.16533$lD6.4715@newssvr27.news.prodigy.net...

On Mon, 5 Nov 2007 06:12:24 +1100, Rod Speed wrote:
but the video implies that the power supply "pushes" the current
Just a clumsy description.

I think I get what Rod Speed is saying.
When I start my blender, the lights dim for a second in my California
kitchen. Then everything is fine.

I think what Rod Speed is saying is, if the hard disk drive motor is
drawing too much current for the original power supply to handle, then
adding a larger capacity (more current) power supply, will allow it to
draw
more current than the original power supply could handle.

That, in an emergency situation such as mine, might be the way to free a
"stuck" drive.

As noted, my drive isn't stuck - it's just clicking and spinning until the
clicking gives up ... so I think I'll give up on the larger power supply.
Plus, I'm using the Vantec IDE-to-USB adapter which comes with its own
power supply.

Funny thing, the hard drives I tested STILL WORK on the Vantec IDE-to-USB
adapter even without plugging in the external power supply. I guess they
get power from the USB - but I'll use the external power supply also to
power the naked laptop hard disk drive.

The good thing is we're learning - the bad thing is that we probably can't
use any freeware on earth to resurrect this drive ... or can we?

That's BS, even the smallest PC power supply can produce enough current to
vaporize the traces right off the circuit board in the hard drive. Sometimes
when semiconductors get marginal, increasing the voltage slightly will allow
them to work, but a higher wattage power supply won't necessarily (and
shouldn't actually) produce any higher voltage, but variation from one to
another may be enough to make a difference in some extremely rare cases.

If the drive is not spinning, the motor control IC is probably bad.

 

[Rod Speed]

James Sweet <jamessweet@hotmail.com> wrote

Erica Eshoo <evesunflor@sbcglobal.net> wrote
Rod Speed wrote

but the video implies that the power supply "pushes" the current

Just a clumsy description.

I think I get what Rod Speed is saying.
When I start my blender, the lights dim for a second in my California kitchen. Then everything is fine.

I think what Rod Speed is saying is, if the hard disk drive motor is
drawing too much current for the original power supply to handle,
then adding a larger capacity (more current) power supply, will allow it to draw more current than the original power
supply could handle.

That, in an emergency situation such as mine, might be the way to
free a "stuck" drive.

As noted, my drive isn't stuck - it's just clicking and spinning
until the clicking gives up ... so I think I'll give up on the
larger power supply. Plus, I'm using the Vantec IDE-to-USB adapter
which comes with its own power supply.

Funny thing, the hard drives I tested STILL WORK on the Vantec
IDE-to-USB adapter even without plugging in the external power
supply. I guess they get power from the USB - but I'll use the
external power supply also to power the naked laptop hard disk drive.

The good thing is we're learning - the bad thing is that we probably
can't use any freeware on earth to resurrect this drive ... or can we?

That's BS,

What's bullshit ?

even the smallest PC power supply can produce enough current to vaporize the traces right off the circuit board in the
hard drive.

Pity about the short circuit current limit that all power supplys have.

Sometimes when semiconductors get marginal, increasing the voltage slightly will allow them to work,

The problem aint with the semiconductors.

but a higher wattage power supply won't necessarily (and shouldn't actually) produce any higher voltage,

Thats wrong too when the power supply is marginal and
cant supply the full rated voltage to all the rails and the hard
drive rotation motor when the heads are stuck to the platters.

but variation from one to another may be enough to make a difference in some extremely rare cases.

Nothing extremely rare about modern systems which
have enough of a load on the 12V rail that sees that
sag when its also trying to spin up the hard drive.

If the drive is not spinning, the motor control IC is probably bad.

Or the heads are stuck to the platters, stiction.

 

[Jumpster Jiver]

I had already realized it was spinning because when I pressed on the top of
the hard disk drive, I could hear a whirr as I made something touch
something else.

Most laptop hard drives have a label that says DO NOT PRESS HERE!

A hard drive depends on a 100% dust free interior to work correctly.
By causing the cover to rub on the spindle that holds the disc in place,
even for a moment, you have likely ground off a few tiny metal particles.
These particles will probably end up between the heads and the disc.
This will scratch the disc and damage the heads.
That hard drive is no longer reliable.
If you get the system up and runnig you should retrieve all the data you
can off that drive then destroy it (to prevent someone else from
stealing your information.)

 

[Arno Wagner]

In comp.sys.ibm.pc.hardware.storage Erica Eshoo <evesunflor@sbcglobal.net> wrote:

On Sun, 04 Nov 2007 08:43:26 -0800, bluerhinoceros wrote:

Here is the freeware/demoware that PC World suggests at
http://www.pcworld.com/video/catid,1610-page,1/video.html
How to Resurrect a Crashed Hard Drive - PC World Video
Electrical recovery for not spinning drives
- Connect to a high wattage power supply

I don't understand this one.
the video implies that the power supply "pushes"
the current rather than allowing the device to draw it.

I agree with you - this is a wierd suggestion by PC World.
But, I can tell you watched the video because that's exactly what it says.

This sounds pretty bad, because it is complete nonsense. "Pushing"
the current would imply a current source. PC PSUs are voltage sources,
i.e. the connected device decides how much current it draws.

PC World seems to imply that a larger capacity power supply INITIAL
current/voltage (they call it wattage) surge into the reluctant disk drive
could JOLT the dead disk drive into cooperating - sort of like a Taser for
reticent hard disks.

Nonsense. Modern drives do not start up as soon as power is applied.
There is at least s slight delay until the voltages have stabilized.
It is also possible not so auto-spin, i.e. the drive starts up when it
gets a reset signal or a start unit command.

http://www.pcworld.com/video/catid,1610-page,1/video.html
Does anyone else know more about this PC World suggestion to resurrect my
dead but spinning hard drive - is it science or is it voodoo?

It is voodoo. Might have worked with historic drives > 20 years ago and
a marginal PSU. Does not work with todays HDD motor controllers.

Arno