something about monitors, help ?

kelvincsteoh

Member
Jul 9, 2000
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Hi guys, I have a 5 year old Sony Multiscan 17sf monitor.
Recently, it keeps blipping like every 5 or 10 mins. What is
the cause of it ? Is it a symptom of old age? I am using a
Geforce 2 GTS Pro 64mb (DDR I think) video card. I use my PC mainly for
3D application and of coz 3D gamez.. ehehe..

One more thing that have been on the edge of my mind a long time ago.
I don't use CPU fan and therefore I leave my casing open for ventilation.
The only fans that are running is my 1.4 Athlon fan and the Geforce fan.
Is this advisable. That is the safe region in terms of CPU heat ? The reason I
ask this is I want to set CPU temperature warning in the BIOS of my motherboard.
I am using EPOX 8KHA mobo and 512 Apacer 2100 DDR.

Any comments and help is greatly appreciated.

:) :) :)
 

kelvincsteoh

Member
Jul 9, 2000
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Um.. sorry it's more like flickering. Used the wrong word. Eheheh...
What is PSU ? I don't get it.
Btw.. just got a chasis fan and PCI slot fan. Hope that helps and I'm
definitely closing my chasis.
 

Anubis

No Lifer
Aug 31, 2001
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tbqhwy.com
well first thing put a fan on you CPU. THAT WILL HELP!!!! az PSU is a power supply unit and it should have a fan and if it dosent thats really strange.
 

kelvincsteoh

Member
Jul 9, 2000
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ahaa.. thanks.. been too long away from the techicalities... kinda embarassing when I want to ask some questions.
thanks for the comments.

btw, how do I add a link to my system rig on the bottom of each post like u guys do ?
I already have my system rig form filled out. Thanks.

Cheers.
 

Bozz

Senior member
Jun 27, 2001
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That fault sounds like one of four hundred things some of which being-

Dirt inside the focus spark gap inside the CRT socket causing the 7000 volt line to arc to ground

Faulty picture tube causing the final grid (26kv) line to arc through the focus spark gap

Faulty flyback transformer allowing either the 26kv winding to arc through to the G3 (focus) resistor network which will arc through the spark gap.

Faulty horizontal output drive circuit. You need a CRO that can measure 1kv and monitor the collector of the horizontal output transistor and notice when the blip happens. If there is no ringing on the waveform you can safely be certain the flyback transformer is not faulty and the fault lies elsewhere.

Faulty horizontal drive circuits, inductors can often go intermittent at the connections where the ferrite winds to the pin that goes through the circuit board.

Faulty DC-DC converter circuit causing the protection to kick in momentarily.

Faulty switchmode power supply causing the protection to kick in momentarily

Faulty protection circuit causing intermittent protection related faults

------

Try the monitor on another computer and if it still does this then send it away for repair unless you fully understand what I have written above.

Cheers
 

kelvincsteoh

Member
Jul 9, 2000
65
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whew... what's all that ? hahaha, thanks for your lenghty and informative respond. I guess it's too Arabic to my
understanding and I'll clean up the dust and hairball in my chasis. Darn.. never thought that owning a cat could create
such problemo. If that doesn't work, it's off to the tech guy to fix it up. Or are there any manuals about my monitor that
shows how to dissemble and stuffs ? It's SOny Multiscan 17sf. Mucho GRACIASS