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Hey, congrats!<BR>
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Really nice to meet you on Monday. <BR>
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Please feel welcome to come back whenever you like.<BR>
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Mitch.<BR>
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Date: Wed, 4 May 2011 00:18:02 -0700<BR>From: mike@mindmech.com<BR>To: rbelknap@gmail.com<BR>CC: noisebridge-discuss@lists.noisebridge.net<BR>Subject: Re: [Noisebridge-discuss] how does one debug an lcd screen?<BR><BR>Hey thanks again to everyone who helped me<BR>out on Monday. I replaced 3 bust-ass capacitors<BR>with some scavenged from a motherboard, and<BR>everything works now!<BR><BR>I even have a few screws left over from taking<BR>apart the monitor! Definitely alot easier than I thought<BR>it would be.<BR><BR> mike<BR><BR><BR><BR>
<DIV class=ecxgmail_quote>On Sun, May 1, 2011 at 11:14 AM, Mike Schachter <SPAN dir=ltr><<A href="mailto:mike@mindmech.com">mike@mindmech.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE style="PADDING-LEFT: 1ex" class=ecxgmail_quote>Thanks everyone! I'll bring it in Monday then, any help<BR>towards figuring out what's wrong would be great!<BR><FONT color=#888888><BR> mike</FONT>
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<DIV class=ecxgmail_quote>On Sun, May 1, 2011 at 1:34 AM, Robert Belknap <SPAN dir=ltr><<A href="mailto:rbelknap@gmail.com">rbelknap@gmail.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE style="PADDING-LEFT: 1ex" class=ecxgmail_quote>Oooh, count me in on that vacation thing!
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<DIV>Having recently done a monitor repair myself, (though I'm even less of an expert than Zach...) what you're describing sounds like 1 or more bad capacitors. Looking at the third picture, I'd say that the cap on the top right looks damaged. It's had to tell from the angle, but the bottom 2 on the right in that same photo might need to go as well. (They won't necessarily look all exploded if they've failed. If you see any kind of bulging, that's a sign that the capacitor needs to be replaced.)</DIV>
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<DIV>Oh yeah, and the CapXOn brand is the same as what I had to replace in my ViewSonic. If you want to make sure, (and want the soldering practice ;-) (parenthetical smilies look weird) ) you could go ahead and replace them all. I sourced replacements for all but the big 400v one on my board from mouser, and they ran me less than $10, iirc. (The big cap was expensive, and mine looked okay - so I left it.)</DIV>
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<DIV>Looks like the board has lots of room to work on, and your parts don't look as covered in foam as mine were. :-)</DIV>
<DIV><BR clear=all><FONT color=#888888>-Robert</FONT>
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<DIV class=ecxgmail_quote>On Sat, Apr 30, 2011 at 19:33, Zach . <SPAN dir=ltr><<A href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</A>></SPAN> wrote:<BR>
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<TD vAlign=top>vaction? where? I wanna go :)<BR><BR>thanks for the introduction brian. Ive fixed a few LCDs at NB and while Im definitely not an expert at it I feel like I do have the hang of it and could probably point you in the right direction. For starters, the cap in the far bottom left looks bad. <BR><BR>Bring it by on Monday and I can probably take a look at it. I might even be over there tonight. I don't offer free repairs but I like to teach and impart what I've learned. So if you want to learn how to fix I'd be glad to help.<BR>best,<BR>zach<BR><BR>--- On <B>Sun, 5/1/11, Brian Morris <I><<A href="mailto:cymraegish@gmail.com">cymraegish@gmail.com</A>></I></B> wrote:<BR>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><BR>From: Brian Morris <<A href="mailto:cymraegish@gmail.com">cymraegish@gmail.com</A>><BR>Subject: Re: [Noisebridge-discuss] how does one debug an lcd screen?<BR>To: <A href="mailto:noisebridge-discuss@lists.noisebridge.net">noisebridge-discuss@lists.noisebridge.net</A><BR>Date: Sunday, May 1, 2011, 1:11 AM
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<DIV>Zach is the monitor wizard who fixed a bunch of them recently.<BR>I think he is away on vacation, but you could ask him for help.<BR><BR>Brian<BR><BR><BR>
<DIV>On Sat, Apr 30, 2011 at 2:49 PM, Mike Schachter <SPAN dir=ltr><<A href="http://mc/compose?to=mike@mindmech.com" rel=nofollow target=_blank>mike@mindmech.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE style="PADDING-LEFT: 1ex">I'm working under the assumption that the power supply<BR>is busted, so I took the thing apart and pulled out the<BR>board where the power plug goes. This is what it looks<BR>like:<BR><BR><A href="http://imgur.com/a/pbpea#2spwh" rel=nofollow target=_blank>http://imgur.com/a/pbpea#2spwh</A><BR><BR>I'm not quite sure how to proceed. There's a bunch of<BR>capacitors everywhere. To my inexperienced eye, nothing<BR>looks all that exploded... Should I just take a voltmeter<BR>and measure the resistance of each end of the capacitors?<BR><BR>If one of the capacitors was messed up, would the resistance<BR>be infinite? I'm kind of at a loss because none of this involves<BR>probability distributions, calculus or computing derivatives. The<BR>board doesn't have any equations on it!?! Maybe I could bring<BR>it into circuit hacking Monday?<BR><FONT color=#888888><BR> mike<BR></FONT>
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<DIV><BR><BR>On Fri, Apr 29, 2011 at 8:53 PM, Mike Schachter <<A href="http://mc/compose?to=mike@mindmech.com" rel=nofollow target=_blank>mike@mindmech.com</A>> wrote:<BR>> Hi there,<BR>><BR>> So, I'm not the most knowledgeable person on earth when<BR>> it comes to electronics... I took an electronics class once,<BR>> and passed it...<BR>><BR>> I have an LCD screen, a Westinghouse. Kind of like a TV<BR>> or something. From years ago. It failed on me - it sorta<BR>> powers on, but nothing shows up on the monitor.<BR>><BR>> Sometimes the ON light just flashes, gradually fading softly<BR>> into the quiet night. It makes me kind of sad. Sometimes I<BR>> wonder if I can bury it in an LCD screen cemetery; would it<BR>> come back to life, only to eviscerate it's hapless owner? My<BR>> final screams should rightfully go unanswered, having toyed<BR>> with things that unknowing humans should not. I'd like to<BR>> avoid that. At least for now.<BR>><BR>> So... does anyone know how to debug problems with LCD screens?<BR>><BR>> mike<BR>><BR>_______________________________________________<BR>Noisebridge-discuss mailing list<BR><A href="http://mc/compose?to=Noisebridge-discuss@lists.noisebridge.net" rel=nofollow target=_blank>Noisebridge-discuss@lists.noisebridge.net</A><BR><A href="https://www.noisebridge.net/mailman/listinfo/noisebridge-discuss" rel=nofollow target=_blank>https://www.noisebridge.net/mailman/listinfo/noisebridge-discuss</A><BR></DIV></DIV></BLOCKQUOTE></DIV><BR></DIV><BR></DIV></DIV>-----Inline Attachment Follows-----
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