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Post by scruffy1 on Oct 18, 2021 6:04:19 GMT -5
hi y'all
it's a dell 22" st2210b, old but looks brand new
screen will turn on with power, and display whatever via the dvi for several seconds but as soon as it warms up > black screen
cycling the power will get a few seconds more, but once it;s warm > black; lasts a little longer when turned on from cold
i presume something has blown, and am too lazy to try and fix it, but am i missing a simple remedy ?
the panel is nice, but i guess it's effectively junk (which given its age is not completely unexpected)
time to toss it ?
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Post by georgekokovinis on Oct 18, 2021 6:19:49 GMT -5
Unfortunately yes  |
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Post by george on Oct 18, 2021 13:05:26 GMT -5
Depending on how many hours it has been powered on, likely caused by tired capacitors on the monitor decoding PCB. Before you toss it, have a look if the caps look Ok.
I fixed one 19" 16:9 Viewsonic monitor by replacing a couple of bulging capacitors, think there was a yt clip or image collection for this repair.
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Post by Bones on Oct 18, 2021 17:15:41 GMT -5
Seems to me to be something that's had it's solder to loosen over time - Maybe baking the board will fix it?
I dunno.
However since it works at first could be a weak solder connection showing itself as being present, then as the component gets warm the connection "Breaks" and there you go.
At this point you've nothing to loose by trying vs the cost of a new one.
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Post by georgekokovinis on Oct 18, 2021 17:30:03 GMT -5
80$.
The cost of a brand new 22" Samsung 1080P monitor with 5 years warranty.
Come on guys. Not even worth trying.
It is not a rare board that you cant find.
It is an old monitor that is half dead - end of life.
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Post by Bones on Oct 19, 2021 1:56:01 GMT -5
Understand - I made a suggestion to maybe fix it for basically no cost vs $80.
It's up to Scruff what he wants to do but I know in my case I'd have to try it at least.
I don't have the $$ to simply toss and replace it without trying something if possible, whether it's old or whatever and that's how I've learned to be and I act accordingly.
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Post by scruffy1 on Oct 19, 2021 6:47:02 GMT -5
soldering is easy opening the fucker is a major mystery... but it's a nice monitor that cosmetically is like a new piece of kit
it's an extra - there's already a dell u2410 just sitting around (and 4 other smaller monitors too); my u2515h is my usual interface
but i hate throwing out gear that either works, or can be recycled and handed on to someone who can use it
hell, my inherited from the daughter nexus 5 phone (only recently upgraded to a jailbroken oneplus 5t - new old stock) has been great since i soldered on a new omrom on/off switch - the common failure point on an otherwise great phone; the nexus was an update on the sony xperia xp that i replaced the motherboard in when she gave me that one prior to the nexus
all of 'em running current, or close to current android (as lineage os, after jailbreaking them)
my music streamer upstairs is an ancient asus tf300t transformer pad (on android 7.1, despite officially redundant at android 4.4 i think) that can happily do the home music and video collection, plus stream netflix and spotify and catch up tv, despite nearing a decade old - buying something "new" is not my thing unless i have a real need or compulsion - hence the ryzen
even the canon scanner that was "obsolete" with the launch of windows 7 is still perfectly useful under win10, even though i had to trick every upgrade of windoze into accepting a driver for a newer model
throwing stuff out goes against my instincts
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Post by Vinster on Oct 19, 2021 9:55:30 GMT -5
replacing the CAP can lead to other items... I had an LG monitor with the near same affliction... the +15v rail had a bad wobble. I replaced the caps, fixed the +15v rail (it was purdy), then one of the IC's popped once I tied it all back together.. the whole thing degrades, fixing the power supply and having it work is a lottery.. might go with a new bang, or last another 5+ years.
I'd replace the caps before buying a board. $5 of parts...
the unit snaps together, you'll break a bunch of them to open it. nothing black electrical tape won't fix on re-assembly.
Vin
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Post by george on Oct 19, 2021 11:07:25 GMT -5
I think it was on the power circuitry PCB that failed caps were on our Viewsonic.
That monitor had been plugged in the wall socket 24/7 for five years, and began showing exact same symptoms.
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Post by ShrimpBrime on Oct 19, 2021 17:25:30 GMT -5
I pick up 50" TVs at thrift stores. Dirt cheap. Great stuff. Like 20 bucks most of the time. Last one, a Samsung. Really decent shape. Snagged that right up. Walmart for 300 bucks new would be the next cheapest thing I guess.
Never can seem to find decent gaming monitors around my area, so I just get whatever. TV, monitor... not picky cause I'm cheap like that lol. Drives my wife nuts. Bring home 7$ PC to rip the ram and cpu out of it. I'm not allowed to do that really. So I gotta sneak a lot of shit in haha.
Can't do 22" monitors any more though. When I see smaller monitors it feels really weird to work with them.
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Post by eidairman1 on Oct 19, 2021 23:54:35 GMT -5
I may have to do that on my 2002 NEC Multisync LCD 1700V, (Its on a DP to VGA adapter by Startec, or rainbow effect from too fast a start (os restart fixes it), but sometimes it will light then go black and unplugging brick then replugging it fixes it (unsure if it's the brick,the power board or back light) Depending on how many hours it has been powered on, likely caused by tired capacitors on the monitor decoding PCB. Before you toss it, have a look if the caps look Ok.
I fixed one 19" 16:9 Viewsonic monitor by replacing a couple of bulging capacitors, think there was a yt clip or image collection for this repair.
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