Techsurvivors

Archives => 2006 => Topic started by: Gregg on September 07, 2006, 08:44:36 PM

Title: The Fuzzy in the Dell
Post by: Gregg on September 07, 2006, 08:44:36 PM
Suddenly, just yesterday, my monitor went all fuzzy. I've messed with the monitor's menus to make things a little less fuzzy, and I've poked around in the Monitor control panel. That ain't cuttin' it. I don't know if there are other things to try. TechTool Pro can test monitor function, but I don't think it will "repair" problems.

If it's time for another new monitor, I don't know the terminology well enough to order a new one that will be compatible with my beige G3. I do know that I don't have a USB port, if that's important.
Title: The Fuzzy in the Dell
Post by: gunug on September 07, 2006, 09:04:47 PM
There is undoubtedly an adapter available somewhere near where you live that will convert MAC G3 video to SVGA.  They are pretty much the same thing with a different pin out.  If you can't find one let me know (private message if you want) and I can probably dig one up.  If focus changes drastically overnight its a sign that something is probably failing in the alignment circuitry of the CRT.  There is probably a focus adjustment inside the case and if you're brave enough and careful enough you can adjust it once you open the case!  If you don't feel like doing it any "real" television repair guy could do it.  I generally drill a hole in the case if I've bothered to open it; that way I can adjust it again later without taking it apart again!

This is a picture of two flyback transformers with focus and level adjustments on the side (the nubs on the sides are plastic screws or adjustments and generally are labeled on the side as focus and level).  Once you're to the point you can see these you need to use a plastic (non-conductive) screwdriver to make your adjustments!

Title: The Fuzzy in the Dell
Post by: Paddy on September 07, 2006, 10:09:08 PM
Gregg, there are lots of good used CRTs around, since everybody and their donkey is opting for flat panel LCDs.

Local is probably the best bet, since CRT monitors are heavy and expensive to ship.

Craigslist?

http://milwaukee.craigslist.org/sys/202041127.html

I've also bought a few monitors off eBay with good success; one that was shipped from CA and the other I picked up from the seller in Boston.
Title: The Fuzzy in the Dell
Post by: sandbox on September 07, 2006, 11:29:36 PM
places like BestBuy/Walmart will have inexpencive monitors.
http://www.walmart.com/catalog/product.do?product_id=5056743
with speakers.
Item Description
   
A reliable 17" monitor that gets the job done right. This Compaq monitor delivers the best in image quality, and boasts an attractive design in a flat-screen format.

    * Tube Type: Color, flat-faced, shadow-mask, multi-frequency CRT
    * Picture Tube Size: 17.0 inches (43.2 cm)
    * Viewable Area (Diagonal): 16-inch (40.6 cm)
    * Trio Dot Pitch: 0.25 to 0.28 mm
    * Maximum Resolution: 1280 x 1024 @ 60 Hz
    * Recommended: 1024 x 768 @ 85 Hz this is important
    * Preset Graphic Modes:1280 x 1024 @ 60 Hz, 1024 x 768 @ 85 Hz and 75 Hz, 800 x 600 @ 85 Hz and 75 Hz,720 x 400 @ 70 Hz, 640 x 480 @ 85 Hz, 75 Hz and 60 Hz
    * Horizontal Frequency: 30 to 70 kHz
    * Vertical Frequency: 50 to 160 Hz
    * Anti-Glare/Anti-Static: Yes good
    * Signal Cable Length Input Voltage: 100 to 240V AC, 50 3Hz and 60 3Hz
    * Built-in Power Supply: Yes. Universal
    * Maximum Power Rating: 75 Watts
    * Energy Mode: < 4 watts
    * Tilt Range: 5 down; 15 up
    * Swivel Range: 45 left; 45 right a plus
    * Monitor Color: Carbonite black & silver
    * Speakers Type: USB powered speakers a plus



amazon has a good new/used selelction.
http://www.amazon.com/s/ref=nb_ss_pc/104-7...o.y=8&Go=Go

The adaptor your using with your Dell now will work on any CRT monitor.
Title: The Fuzzy in the Dell
Post by: jepinto on September 08, 2006, 05:16:36 AM
Do you have a way to test the monitor, on another computer?  After spending a lot of money for a flat 17  CRT..... I wanted the same look on/with the Cube.... I found my problem was the video card, not the monitor.

Having said that, my symptoms were banding and fuzziness.  The last monitor that went just fuzzy was the monitor, on a friend's 4 year old Dell.
Title: The Fuzzy in the Dell
Post by: Gregg on September 08, 2006, 07:40:15 AM
Thanks for all the excellent advice.
I think the video card (ATI) is fine. I have a VCR connected to the computer, and the TV signal, coming through the ATI card, is still sharp.

I might try to have someone else adjust the focus, if that can reasonably be expected to extend the life of the monitor. I just don't want to spend money on it if it is ready for the junk pile.

I suppose I could remove the adapter that plugs into the monitor and take that with me to BestBuy or WalMart to make sure I get a CRT monitor that I can plug in. Good idea! Thanks. You're welcome.

What an inspiring site this is! smile.gif
Title: The Fuzzy in the Dell
Post by: Gregg on September 08, 2006, 12:15:41 PM
Get this: the tech I talked to, without me telling him what computer I have, asked if the monitor was an Apple? Reason: Apple monitors can be adjusted internally. But, Dell's or anybody else's monitors are limited to the external controls. Figures.
Title: The Fuzzy in the Dell
Post by: gunug on September 08, 2006, 02:17:20 PM
Gregg - I think this guy is blowing smoke in your eyes (he's not a friend or a relative or something is he?) ; I have 5 brands of monitor at home and a iMAC DV/400 and I've adjusted video on "all" of them.  I will admit none of them is a Dell but I have been inside Dell monitors and the don't recall anything all that different inside.  Was this guy a computer technician or a TV guy?  A lot of computer techs don't do the insides of monitors (probably a survival mechanism smile.gif  ) but I don't imagine an experienced television guy would see anything all that strange in a CRT computer monitor (well there is a digital controller board but he doesn't need to go near that).  I guess I should keep my mouth shut because most people are concerned about the high voltage.
Title: The Fuzzy in the Dell
Post by: Xairbusdriver on September 08, 2006, 06:49:19 PM
QUOTE
I guess I should keep my mouth shut because most people are concerned about the high voltage.
Only ones not concerned are no longer with us...eek2.gif

But I agree with your expectations of what's inside the "Dell" monitor. Since I don't think "Dell" makes any of the parts for its merchandise, I'd expect their monitors to be exactly like most of them ( unless they were able to cut a deal for cheaper parts that others would demand ). As far as I know, every CRT monitor must have these controls because they must each be set at the factory. CRTs are not like digital hardware, the CRT itself is always slightly different than the next, so they must all be 'tweaked' a little before they leave the building. Why it would suddenly become 'fuzzy' makes me suspect that a cap or resistor some where in the circuit may have failed. You may be able to compensate for that with the adjustment pot, but there are limits to how much and how fine the adjustment can be. But it is certainly worth checking with a knowledgeable tech/serviceman; shouldn't take but a second, once the case is removed.

BTW, getting a flat screen CRT monitor/TV will be quite a bit heavier than the old kind ( a 17 incher should still be 'luggable', of course ). The front 'flat screen' is probably three times as thick as the old rounded kind. That is because the glass must be strong enough to withstand the pressure by shear strength instead of the added benefit of the old curved glass ( remember, there is a fairly healthy vacuum inside that CRT ). It's actually one of the reasons that chicken ( and most other ) eggs are not square, the curved shape helps make the rather thin shell possible ( even though there is usually not a vacuum in there ). eek2.gif The other major reason for rounded eggs is so they'll fit in those egg cartons...harhar.gif
Title: The Fuzzy in the Dell
Post by: Gregg on September 09, 2006, 10:58:10 AM
The place I called is where my old Mac TV was repaired, including adjusting the image on the screen internally. I guess I could call a TV repair shop. But, guess what's faster.... buying a new monitor.

Jim, did you ever try to break a chicken's egg by applying pressure along the long axis? Can't be done. If you slip and apply the pressure in another direction, you'll have messy hands.
Title: The Fuzzy in the Dell
Post by: Gary S on September 09, 2006, 11:09:48 AM
Gregg,

QUOTE
There is probably a focus adjustment inside the case and if you're brave enough and careful enough you can adjust it once you open the case! If you don't feel like doing it any "real" television repair guy could do it.


Those adjustment pots are usually on the left side of the case- as your facing the monitor.

Take a flashlight and look through the air vents near the lower left side and see if you can see them.

I adjusted mine and got a very clear picture on my Viewsonic.
Title: The Fuzzy in the Dell
Post by: krissel on September 09, 2006, 12:10:07 PM
Here's another Craig's listing...

http://milwaukee.craigslist.org/sys/204960579.html
Title: The Fuzzy in the Dell
Post by: gunug on September 09, 2006, 08:01:08 PM
I think I'm going to have dreams (nightmares) about square eggs with vacuum inside of them; they could suck you in when you crack them open!   tongue.gif
Title: The Fuzzy in the Dell
Post by: Xairbusdriver on September 09, 2006, 08:47:20 PM
Don't worry, gunug, if you see an egg big enough to suck you in, you better start looking out for whatever layed it! eek2.gif harhar.gif
Title: The Fuzzy in the Dell
Post by: Gregg on September 09, 2006, 10:24:44 PM
I'm not usually one for taking things apart and fixing them. But, I might have a look. And just how do you make the adjustment? If I see something with a flashlight, I sitll have to get the case off I suppose. Not my idea of having fun.

But, asuming I get that far, do you fire it up and adjust away, or do you have to turn 'em one at a time and then fire it up? - a trial and error method

I'm also not one for buying used equipment, cars, etc. If I end up buying a monitor, it will be new.
Title: The Fuzzy in the Dell
Post by: Paddy on September 09, 2006, 11:17:59 PM
Gregg, the only problem with trying to buy a new CRT monitor these days is that the selection is somewhat limited.

If you want new, there's a very highly rated 22" Viewsonic on eBay right now - NIB. With shipping, it's about $118 at the moment - 2 days to go.  smile.gif Others to consider - Mitsubishi Diamond Pro 2070 and LaCie Electron Blue (my monitor is a 22" Electron Blue and it's wonderful)

Viewsonic P220f
Title: The Fuzzy in the Dell
Post by: gunug on September 10, 2006, 12:14:02 AM
Gregg - Unless you're unusually lucky I don't think it's too likely to have vent holes lined up so you can see and actuate the internal focus control.  The other two things I can say about this is you should have the plastic screwdriver and occasionally they've put some fingernail polish type stuff onto the control to keep it from shaking out of alignment position.  If you have this gunk on it I've used a insulated pair of needlenose pliers to turn it "ever-so-gently" and break the stuff loose.  Then you can switch to the plastic screwdriver (or "diddle-stick" is another name for it) and adjust it.  There is a Test Pattern on some of the websites and on the older Service Source disks (I"ve seen it downloadable but I can't remember where).  This serves much like the test patterns on old televisions that allowed people to change settings with a stable, non-changing screen.  

This webpage is all about the safe way to make adjustments:

http://www.repairfaq.org/REPAIR/F_monfaq3.html#MONFAQ_012


On the subject of electronic adjustment and repair (standing on my soapbox): about the time I was in my mid 20's I had never been inside of a computer let alone a monitor.  I was living in the same town as my grandfather and he had never had anything (car, aircraft, radio, television) that he hadn't taken apart.  He taught me respect for things inside the radio and television because there are high voltages inside.  But once I'd started doing things in there I was hooked; everytime I could actually fix a thing, actually make it better, I felt wonderful.  A honest feeling of power and accomplishment.  I don't think everyone is like me to the degree that you would take up my way of making a living; but I do think everyone is capable of learning how to fix "something" and feeling that feeling.  (I trip as I climb down from the soapbox).  Say goodnight John!
Title: The Fuzzy in the Dell
Post by: Gregg on September 10, 2006, 03:59:49 PM
Yeah, John, I know. With encouragement from various members here, I have done some things inside my G3, including replacing a hard drive, a zip drive(which I've come to believe was unnecessary) and adding memory. It does give one a sense of satisfaction, but it does not remove the fear factor -for me anyway. I might check your link. Thanks for providing it.

Paddy, eBay is another thing I don't do. I know, I'm a fuddy duddy. My first 17" monitor was a Mitsu Diamond Pro. It worked well for several years, then got "the shakes". This Dell was a no cost replacement. Never used, it was sitting in a box at work. There might be more, but since I am in the process of changing jobs, I'm not asking again. I got about 1 year out of it. I posted here about hooking it up because somthing I read mentioned drivers - not needed with a Mac, I learned.

A local electronics chain has a storewide sale starting on Thursday. If I haven't found a place to fix this thing, or gotten up the nerve to try to open it up, I'll get the best thing they have on the shelf. I want it to last for two years, at which time I'll replace everything - unless something else goes bad on me sooner.
Title: The Fuzzy in the Dell
Post by: gunug on September 11, 2006, 01:06:41 PM
I have used eBay twice and been entirely burned one time and slightly smoked the other.  Not interested in make eBay a habit; I like kicking the tires on things I buy too much!
Title: The Fuzzy in the Dell
Post by: Gary S on September 11, 2006, 01:18:57 PM
Gunug is right. They put some stuff on the controls to hold them in that OEM position. It's not hard but it's a very easy adjustment for a TV repair person.
Title: The Fuzzy in the Dell
Post by: Gregg on September 11, 2006, 08:24:50 PM
Well, all I can see through the holes in the case is relatively flat - no knobs, fittings, wires, screws - nothing. So it doesn't matter. I'm not taking the case off of it.

Now, a tech at Best Buy (scrapping the bottom of the barrel, I know) said switch out the cable and see if that helps. Well, I looked at the back of the monitor, and I'm not sure the cable plugs in or if it is hard wired. I guess I could ask the IT guy at work.
Title: The Fuzzy in the Dell
Post by: Xairbusdriver on September 11, 2006, 10:19:49 PM
QUOTE
I might check your link.
Please, do NOT open the case until AFTER reading that info. It can be done safely, but it is not for beginners or those prone to be sloppy in their habits. I suspect the 'pots' are there, somewhere, probably next to each other, but possibly not where we think they should be. So, it's safer to let a repairman test his skills and leave the driving to them. I most stick to fixing mechanical things that only need parts replacements. I still remember connecting 220 volts to the wiring my Dad and I had installed in a garage/office we'd built. Fortunately only a very nice tube radio went up in smoke! oops.gif WOW.gif blush-anim-cl.gif Of course, I was grounded for several weeks!
Title: The Fuzzy in the Dell
Post by: Gregg on September 12, 2006, 07:30:18 AM
Jim, I guess you responded before reading the post directly above....
Title: The Fuzzy in the Dell
Post by: gunug on September 12, 2006, 08:05:18 AM
I don't think I've ever seen a focus problem caused by the cable; most monitors I've seen lately (that is the cheap one's I'm likely to be around) have a cable that is molded into the back of the case (that is locked into the back with soft plastic) and of course is fastened into a connector and usually screwed in somewhere for security.

I feel like I'm trying to talk you into doing something you don't want to do and that is "really" what I don't want to do!  Leave it alone and buy another one.  I'm sure that if my father were still alive (and he wasn't a technical sort although he was a meteorologist and a real user of technology) I could have personally showed him how to do this and would've felt he was safe.  But you and I are not in the same location and that could be the key here.  The link I sent you is great but there are no illustrations which I feel is key to understanding what to do.  I think I'm going to look for a (probably DVD based) video on this subject that I can recommend.

I'm going to try to limit myself on this subject from now on; if anyone thinks I'm getting too pushy then tell me!   nono.gif
Title: The Fuzzy in the Dell
Post by: Xairbusdriver on September 12, 2006, 09:32:37 AM
I did read that post, but I also read that you were going to take it to the IT tech at work. That suggested to me that you were still considering doing something inside the box yourself. While it is easy, I'm sure gunug would feel better if you read up on the safety steps, even if you decide to simply buy a new one. It was something I did not want to assume you would do.

Nor do I think he is being 'pushy' and I know he is also concerned about your health! That's why he gave you that link. It's important to know what you're doing around high voltages. It's somewhat similar to flying, you usually only get to make one major mistake! oops.gif
Title: The Fuzzy in the Dell
Post by: Gregg on September 12, 2006, 12:22:31 PM
No, Jim, I said I was going to ask the IT guy at work, and that was in reference to whether the cable was a plug in or hard wired. So, it's for sure: I am NOT going in there. A new monitor is the answer.
Title: The Fuzzy in the Dell
Post by: Gregg on September 15, 2006, 08:33:15 PM
Here's lookin' at my new HP mx705 monitor drink.gif

Less than $100 U.S. before sales tax. thumbup.gif

The image is much clearer. blink.gif

Not a big deal, but... cheer2.gif

(see, you don't need that candle to start a fire)
Title: The Fuzzy in the Dell
Post by: gunug on September 15, 2006, 09:26:40 PM
Good News, Good News!