ViewSonic monitor "blinks"

This is a 3 year old G810, out of warranty.

When it is connected to any computer, it "blinks" - meaning the screen goes
on and off. It began as a once-per-minute thing and is now on/off, on/off,
on/off. It also makes a clicking noise at the same time.

Troubleshooting done:
1. Same symptoms when connected to any computer
2. When plugged into just a power outlet (not into a computer), the monitor
seems fine (the power light is a constant amber, no clicking noise).

Anyone with experience with this type of problem?

Is it possible the connector cable is bad, or is it likely an internal
problem?

This has been a great monitor and is pretty critical to my work... any and
all suggestions are welcome!

TIA!

Mike

Michael Kemp wrote:
This is a 3 year old G810, out of warranty.

When it is connected to any computer, it "blinks" - meaning the
screen goes on and off. It began as a once-per-minute thing and is
now on/off, on/off, on/off. It also makes a clicking noise at the
same time.

Troubleshooting done:
1. Same symptoms when connected to any computer
2. When plugged into just a power outlet (not into a computer), the
monitor seems fine (the power light is a constant amber, no clicking
noise).

Anyone with experience with this type of problem?

Is it possible the connector cable is bad, or is it likely an internal
problem?

This has been a great monitor and is pretty critical to my work...
any and all suggestions are welcome!

TIA!

Mike

The crackling is probably the static buildup and drain when powered on
and off.

The power supply external outlet should only be used with very low-power
monitors. Yours probably doesn't qualify. Plug it into the wall, UPS,
power strip or control center, or something else that can provide the
current draw required for your monitor.


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Anyone with experience with this type of problem?

Is it possible the connector cable is bad, or is it likely an internal
problem?

It sounds like an internal problem. Probebly FBT (Fly Back Transformer)
related. Check the monitor for bad solderjoints. If there aren't any bad
joints than you will have to buy a new one. Repair will cost to much.

Succes
Chris

I'll have a look inside later today, thanks.

Found a useful resource (I looked at TV repair resources, too, since it's a
CRT) at
http://www.repairfaq.org/sam/tvfaq.htm

Mike

"Christiaan van Bladel" wrote in message
...



Anyone with experience with this type of problem?

Is it possible the connector cable is bad, or is it likely an internal
problem?

It sounds like an internal problem. Probebly FBT (Fly Back Transformer)
related. Check the monitor for bad solderjoints. If there aren't any bad
joints than you will have to buy a new one. Repair will cost to much.

Succes
Chris

Thank you for your thoughts!
The sound is not crackling (I know and recognize crackling), but a definite
click.
Not sure what you mean by "power supply external outlet," but it has been
plugged into UPS, wall outlet and power bar. Electrical power supply is not
the problem. The symptoms only happen when the monitor is connected to a
computer, any computer.

Thanks again,

Mike

"*Vanguard*" wrote in message
news:fAuwb.223573$ao4.806375@attbi_s51...
Michael Kemp wrote:
This is a 3 year old G810, out of warranty.

When it is connected to any computer, it "blinks" - meaning the
screen goes on and off. It began as a once-per-minute thing and is
now on/off, on/off, on/off. It also makes a clicking noise at the
same time.

Troubleshooting done:
1. Same symptoms when connected to any computer
2. When plugged into just a power outlet (not into a computer), the
monitor seems fine (the power light is a constant amber, no clicking
noise).

Anyone with experience with this type of problem?

Is it possible the connector cable is bad, or is it likely an internal
problem?

This has been a great monitor and is pretty critical to my work...
any and all suggestions are welcome!

TIA!

Mike

The crackling is probably the static buildup and drain when powered on
and off.

The power supply external outlet should only be used with very low-power
monitors. Yours probably doesn't qualify. Plug it into the wall, UPS,
power strip or control center, or something else that can provide the
current draw required for your monitor.


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Michael Kemp wrote:

Not sure what you mean by "power supply external outlet,"

The outlet on the back of the power supply used to make external power
connections, like to a monitor. Not the outlet used for connecting the
power cord to the power supply. The other outlet into which an external
powered device is connected, like a monitor. It can be a standard
3-slot grounded outlet or a recessed outlet requiring a special adapter
power cord.

Electrical power
supply is not the problem. The symptoms only happen when the monitor
is connected to a computer, any computer.

Electrical power could be a problem if the power supply is restricting
how much current can flow out its power outlet. Same can happen with a
UPS. If the UPS has multiple outlets, each is rated as to its max
current draw.

Monitor works fine on a wall outlet. Monitor doesn't work when
connected to power supply's external outlet. The problem is not the
monitor as your testing shows it is when the power supply is inline with
the monitor's power. That's why my guess is that not enough current is
getting delivered when using the power supply's external outlet.

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I see that my original post was not clear enough.
The monitor has always been plugged into a wall outlet. I only moved the
power cord connections around as part of troubleshooting.
The monitor behaves fine when plugged into any power supply and NOT
connected to a computer.
The monitor experiences difficulties when plugged into any power supply and
the SVGA connector is plugged in, to any computer.


"*Vanguard*" wrote in message
news:mXNwb.106420$Dw6.512673@attbi_s02...
Michael Kemp wrote:

Not sure what you mean by "power supply external outlet,"

The outlet on the back of the power supply used to make external power
connections, like to a monitor. Not the outlet used for connecting the
power cord to the power supply. The other outlet into which an external
powered device is connected, like a monitor. It can be a standard
3-slot grounded outlet or a recessed outlet requiring a special adapter
power cord.

Electrical power
supply is not the problem. The symptoms only happen when the monitor
is connected to a computer, any computer.

Electrical power could be a problem if the power supply is restricting
how much current can flow out its power outlet. Same can happen with a
UPS. If the UPS has multiple outlets, each is rated as to its max
current draw.

Monitor works fine on a wall outlet. Monitor doesn't work when
connected to power supply's external outlet. The problem is not the
monitor as your testing shows it is when the power supply is inline with
the monitor's power. That's why my guess is that not enough current is
getting delivered when using the power supply's external outlet.

--
__________________________________________________ __________
*** Post replies to newsgroup. E-mail is not accepted. ***
__________________________________________________ __________