Re: Asus VW221 (model VW221d)
well whadiya know. I replaced the battery and the results were the same.
So i got another multimeter (another mastech) and the results are now different
multimeter's set to 2k.
q802
G1-->S1 - 1.609
G1-->D1 - 1.094
S1-->D1 - 0.267
G2-->S2 - 1.612
G2-->D2 - 1.093
S2-->D2 - 0.267
q803
G1-->S1 - 1.609
G1-->D1 - 1.093
S1-->D1 - 0.267
G2-->S2 - 1.612
G2-->D2 - 1.093...
bocca
Senior Member
Last Activity: 02-20-2015, 10:50 AM
Joined: 03-15-2012
Location: Belgrade
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Re: Asus VW221 (model VW221d)
Battery is new.
Yes, resistance is zero on all other settingsLeave a comment:
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Re: Asus VW221 (model VW221d)
Mosfet Q803:
Red probe on S1 Black on G1 - 1.303
Black on S1 Red on G1 - .663
Black on G1 Red on D1 - 1.880 after some time. Looks like mosfet is charging up.
Black on D1 Red on G1 - .958 (meter beeps for continuity for a second and then stops and gives measurement. edit: beep happens only the first time. every other measurement gives no continuity)
Black on S1 Red on D1 - Meter beeps for continuity for a brief moment and then it goest to infinite resistance
Black on D1 Red on S1 - Meter...Leave a comment:
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Re: Asus VW221 (model VW221d)
With my multimeter (Mastech MS8200G) set to 2k the inverter transformer readings are:
T802 - .813
T801 - .838
As for the mosfet readings, my multimeter is set to continuity test, or 2 ohms. That is the only setting that gives any reading.
[B]Mosfet Q802:[/B]
Red probe on S1 Black on G1 - 1.305
Black on S1 Red on G1 - .664
Black on G1 Red on D1 - 1.879 after some time. Looks like mosfet is charging up.
Black on D1 Red on G1 - .961 (meter beeps for...Leave a comment:
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Re: Asus VW221 (model VW221d)
Dammit, now it's so obvious. Well, excuse my ignorance.
"NIKOS P5506HVG" both of themLeave a comment:
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Re: Asus VW221 (model VW221d)
Here's trafos.
Now, if I'm not mistaken, I see four mosfets here. One on the top side, a three on the bottom side. Which ones are you interested in?...Leave a comment:
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Re: Asus VW221 (model VW221d)
And one correction. Picture appears for about half a second. I was mistaken at firstLeave a comment:
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Re: Asus VW221 (model VW221d)
16.13 V on both fusesLeave a comment:
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Re: Asus VW221 (model VW221d)
I meant fuses, sorry. They are not blownLeave a comment:
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Re: Asus VW221 (model VW221d)
they're up and runningLeave a comment:
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Asus VW221 (model VW221d)
Hi guys
So I have this Asus VW221. Its problem is, the backlight's not working at all. No seconds to black. It's all black right away. There's a picture on the screen, all OK as it should be, just no backlight.
I opened it up, and there are no bulged caps, visually, nothing out of the ordinary. Little did I find about this screen and this problem, but some are talking about trafo(s).
Here are the photos, and I hope someone will be able to help
...
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Corsair CMPSU-400CX blowing it's fuse
Hi all!
I have this PSU on my desk. I used it as a reference PSU, for testing when doing servicing and all. One day there was a distinguishable soft bang inside, and although i suspected the fuse, proof came when i opened the unit.
fuse was indeed blown. Inside was glass 7A 250v fuse. As i have about a dozen laying around I trien with another one. Plugged in the PSU, took my faithful [URL="http://i.imgur.com/paFCh.jpg"]Antec PSU tester[/URL], and
there it was again. Fuse blown.
I tested all the diodes, no caps are bulged (Su
scon caps... -
Re: LG flatron L1718S - shaky picture when not in native resolution
Well, you're obviously a very stand up guy, and well worth your reputation here
@mockingbird: I'm still stuck on 30w. I'm saving up for a good quality Ersa iron
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Re: LG flatron L1718S - shaky picture when not in native resolution
problem is fixed and display is working perfectly.
retiredcaps, I salute you!
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Re: LG flatron L1718S - shaky picture when not in native resolution
The letter arrived!
4 voltage regulators inside. Tomorrow I'll solder it on, and finally the problem will be fixed!Leave a comment:
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Re: Genius SP-HF1250X - 2.0 speakers
will be done tonight people. Once again, you have big thank you for your patience!
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Re: Philips 170s - white screen
errr, what's t-con?Leave a comment:
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Re: Genius SP-HF1250X - 2.0 speakers
OK, so here's the datasheet:
[url]http://html.alldatasheet.com/html-pdf/168905/HTC/LM4558/53/1/LM4558.html[/url]
What should I measure? And should i do it with the speakers powered on?Re: Genius SP-HF1250X - 2.0 speakers...rs powered on?Re: Genius SP-HF1250X - 2.0 speakers
OK, so here's the datasheet:Leave a comment:
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Re: Genius SP-HF1250X - 2.0 speakers
Hi ben7.
OK, i plugged it in again, and watched the speaker cone. It doesn't suck in, nor does it push out. It starts vibrating immideately, first small vibrations, for a second, and then with, i guess, full power.
Measured what you told me. Upper black contact measures 0.48, and lower is at zero. Multimeteris set to 20V
edit: that was with the speakers turned off. When I turned them on, voltage on the upper is about 9.27 (it's variable, but around that value), and on the lower is constant -0.7. Multimeter...Last edited by bocca; 07-05-2012, 06:02 AM.Leave a comment:
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Re: Philips 170s - white screen
Thanks! I will begin my search for the fuse today, but i think i saw them in one store some time ago, so I'll check there first thing today.Leave a comment:
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