Re: Asus GT220 1GB graphic card problem
After run fine for 1 month, today I face this again. Last time once I face this then rebboot second time, it will work, now second time also cannot work. Don't know eaut until it warm abit can work or not? Anything I can do to prelong its life? I don't device to reflow it
gerbercage
Member
Last Activity: 05-04-2019, 08:28 PM
Joined: 10-18-2018
Location: PG
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Re: Asus GT220 1GB graphic card problem
After 3 days of this pattern, Friday, Saturday and Sunday all ok. No more this pattern. All switch on first time got display. (I not done anything on that period at all)
So strange.Leave a comment:
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Re: Asus GT220 1GB graphic card problem
Yesterday, same thing happen. The pattern now will be, when I switch on, it will 1 long beep 2 short beep so I switch off then after 10 second, I switch on again, it work.
This already happen in these 2 days. (All will beep in first time switch on but will work on second time)Leave a comment:
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Re: Asus GT220 1GB graphic card problem
Yah I do that before and test in 2 PC. Sometime ok, sometime cannot but even cannot work, it just sound 1 time then still let the PC to continue boot into windows, just I can't see anything only. Suppose it should keep repeat on the beep then stuck at there and should not able to continue load, don't know why it got problem and still can go....Leave a comment:
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Asus GT220 1GB graphic card problem
Recently when I start my PC, the bios will come out 1 long beep then follow by 2 short beep which is "Indicates a video error has occurred and the BIOS cannot initialize the video screen to display any additional information."
Normally it will keep repeat this 1 long 2 short beep and will not proceed to load OS at all and stuck at there but for my case, it will just simply sound 1 time of 1 long 2 short beep then it pass and start process to load the windows but my monitor don't have display. The indicator at monitor light will keep blinking. I had test the graphic card... -
Re: viewsonic va2231wm cannot power on
ok thanks, I will try to find those.
Most of the site got delivery charge and due to I only want to buy 3 of these components so the delivery cost more than these 3 components. I may try to find some other that got free delivery....Leave a comment:
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Re: viewsonic va2231wm cannot power on
After this several week and go to a few shop. I can't find out these components.
The resistor 0.43ohm, none of the shop that I visit got it. The nearest value that they got are 0.4 and 0.47ohm. (Can I use it? should use 0.4 or 0.47?) How do I know what is the watt for that resistor?
For the Capacitor C808 is R 101K 1KV, one shop got it but label as "100" only, they don't even know whether is 1KV or what. (Can I use this one even without knowing whether is 1KV or not?)
For Q804, the mosfet 09N65GX, I...Leave a comment:
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Re: > Possible to repair/replace SMD capacitor in VGA?
Thanks to both of you. I will try to get that first. For reflow, I think I have to check from website first because I not very know about it and don't know whether I got tools to do it or not....Leave a comment:
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Re: viewsonic va2231wm cannot power on
I go a few shops already but can't find these part.
The Q804 is 09N65GX, it is very hard to find it. I even search in internet(digikey/mouser)
If I cannot find exactly the same, what should I find to replace it? I search in internet I think something like FMA09N65GX TO-220F?
Can you tell me what should I find for replacement? I can't even find this datasheet for it.
Then for resistor 0.43ohm, the shop ask me how many watt? how can I find out?
C808 is R 101K 1KV, one...Leave a comment:
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Re: > Possible to repair/replace SMD capacitor in VGA?
I measure it. It is 1.24mm x 2.1mm so it is 0408?
Someone say x7r with 10uf, 0.1uf and 0.01uf.
I don't know whether is 10uf, 0.1uf or 0.01uf so I go with 10uf right? then with 25V?...Leave a comment:
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Re: viewsonic va2231wm cannot power on
If I able to get all these 3 and replace it, do I need to connect all to test? or I just connect power to power board then power on and see all ok or not before connect all power board to main board to test?...Leave a comment:
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> Possible to repair/replace SMD capacitor in VGA?
I got VGA card one day when boot, nothing show out.
Later I found out 1 SMD capacitor spoil as show in photo. (Label C834)
I check other SMD at near, none of them got any label nor value show out so is that possible for me to repair/replace this with other SMD capacitor that look similar? (same length,same height, something like that)
Quite waste if 1 card just throw out like that with just 1 SMD down.
I think C843 and C841 should be exactly same with C834.
Any opinion/suggestion? Anyway to know the value? or simply get something near to that?... -
Re: viewsonic va2231wm cannot power on
Sorry for long delay.
Recently got something to do so I late reply.
I had remove the Q804 out and check it and it still D and S short.
C808 open/OL. (I think is bad, I dunno I check the capacitor correctly or not)
R815 open.
The Q804 is 09N65GX, I dunno whether I can find a replacement or not.
If I cannot find exactly the same, what should I find to replace it? I search in internet I think something like FMA09N65GX TO-220F? Dunno can find or not.
For C808,...Leave a comment:
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Re: viewsonic va2231wm cannot power on
do I need to solder out all of these to check again?...Leave a comment:
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Re: viewsonic va2231wm cannot power on
thanks.
ok here is the result.
zd801 637
d802 473
d803 539
zd803 472
d806 399
d804 399
d808 104
d807 102
d809 103
For Q804, the component is 09N65GX FET.
When I check D and S short, check other(G-D,G-S) no short.
C808 short
R815 nearly 0.6M Ω (is not0.43Ω)so is open right?
dunno how to check CN803 and hard to see the thing inside there.
Any suggestion?...Last edited by gerbercage; 10-25-2018, 02:53 AM.Leave a comment:
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Re: viewsonic va2231wm cannot power on
But second time my when I put correct fuse which is T3.15A, it not blow even got 2 pop sound out when switch wall power. I check the fuse, it still ok so I cannot do like other people which is connect the power to this power supply board only then check the voltage come and out?...Leave a comment:
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Re: viewsonic va2231wm cannot power on
so if when I put fuse (T3.15AL 250VAC) and it not blow, will this still consider dead short?
Anyway I had follow your instruction to check that bridge rectifier first.
I am newbie for this things so I will write out more clearly so that you can see whether I done it correctly or not.
First I check AC legs at there. (Which is middle of 2 legs in these 4 legs) I set diode at meter, it show 1(so it is "open" right? when I touch 2 probes together it will show number 002 plus buzz sound)
Then...Leave a comment:
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Re: viewsonic va2231wm cannot power on
1 more thing, early thread I forget to mention when that time got 2 pop sound which when power on from wall it pop then I off the power it pop again, that one, after that I check the fuse (T3.15AL 250VAC) it not blow, it still ok.Leave a comment:
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viewsonic va2231wm cannot power on
Last Saturday, I power on my PC and monitor(buy at year 2010) at afternoon about 3.00pm. Then at midnight (12.00am) because I want continue download file, so I keep the PC running and set "power plan" in windows 7 to turn off display after 1 min not activate. (This is what I do normally for so many year and all the time it work well.
I think about 3.00am midnight, suddenly I hear some "pop" sound but because I still sleeping, I though some other sound rather than this so I not wakeup for it.
Next day I only found out the monitor death already which no... -
Re: New Members - please post your introductions here
Hi, I am new here.
Hope can learn something and also find a way to fix my VGA board.Leave a comment:
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