Question about Compaq P110 21" CRT Monitor

2 Answers

A really loud cracking noise, akin to a 'zap', and the screen distorts

Compaq 21" CRT Monitor, Model P110 This has only happened twice so far, but each time it scared me senseless. My monitor will work fine, sometimes for hours, sometimes for days, and randomly, the screen will distort, and there will be a relatively loud cracking noise, similar to a 'zap'. Then it all goes back to normal. Afraid that the matter will simply blow to bits, having my face bet he victim, I asked a few people about what precautions I should take to see that my nose doesn't get split in two by shards. One claimed that the absolute worst possible scenario was that it would set on fire. One told me it cannot blow up, unless you hit the CRT tube itself. Is there anything I should do about this? Is this normal? Will I have my facial features carved into a totemic ornament? Etc etc. ANY help would be grandly appreciated.

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  • CommonOddity Aug 17, 2007

    Oh, forgot to mention, I sincerely doubt it's 'degaussing'. It usually would not randomly degauss, I realize, and also it is a much more violent process than anything as simple as getting refreshed.

  • CommonOddity Aug 18, 2007

    Hmmm. I'm not sure if it's properly earthed off. I see that the ground on the plug is still intact, and I figured (Without knowing much, unfortunately), that it's fine. Is there anything I could do to check this?

    Once again, thank you for the help. It's incredibly appreciated.

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This may be happening because the tube was not fully clean when sealed and some particles left inside are finding homes next to high voltage. or the power supply is beginning to fail and arcing internally where it finds shortcut electric paths inside capacitors or coils or it...whatever the problem... keep in mind the tube is under vacuum, so it may implode but not explode. However, an implosion, severe enough, can be dangerous as one of Newtons laws may kick in, something about momentum transfer blah blah blah. Inside a business office, this monitor would be replaced by the geek squad to prevent employee lawsuits. oh, to answer the question: NO, this is not normal. replace it. crt monitors are quite cheap right now. faces and vocal cords are quite expensive.

Posted on Aug 18, 2007

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In that case is it possible its simply static building in the monitor? It it properly earthed off?

Posted on Aug 18, 2007

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I have maximam Monitor


Open this website
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then choose your make and model for a manual.

Dec 18, 2017 | Compaq P110 21" CRT Monitor

1 Answer

My Compaq P110 monitor's VGA input does not working


posted 2 times, please erase one, thanks.
P110.

its a tuby 4:3 monitor, useless for wide video. plays.
1600 x 1200 at 85 Hz
do not exceed this, or boom. 1920x1080 will fail.
no resolution stated by you. and matters big time on all old monitors. (old = poor resolution only)

redux for less....words...
does it fail on all PCs connected, sure
does it fails set to lowest Resolution and 60hz?
RGB BNC only proves the analog side works.
not the digital side.

The VGA needs sync
if the PC is working (is it? on other monitors set to below reso.?)
then the 2 sync lines are active
at 1600 x 1200 , max (cant exeed this, ever)

then if that is true then the OSD buttons now work
do they? this is next.

does the On screen menu button work?
if not? it's a digital failure.....
or power to that section dead. or weak.

only googling finds schematics this old.
sorry.
nobody fixes these now, for good reasons.
labor costs on it would exceed a new LCD. fast.
we call this throwing good money after bad.

Sep 15, 2017 | Compaq P110 21" CRT Monitor

1 Answer

Compaq 21'' monitor power supply led is not working


I didnt know they still made cathode ray tubes. Id suggest you junk that thing and get a decent LCD screen.
It is beyond the scope of this website, and possibly your skills as an electronic technician to go through complete troubleshooting scenario.

Mar 09, 2010 | Compaq Refurbished PE1140 21 SVGA COLOR...

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Pop - bang noise then went dead after a period of time


You've blown a capacitor and probably the horizontal output circuity. It's time to get a new LCD monitor.

May 30, 2009 | Sony GDM F520 21" CRT Monitor

1 Answer

Problems controling brightness of monitor


well its not first hand ever.
its a vacuum tube CRT relic, why own such a thing>
the monitor old and weak, ask all such monitors are.

why pop for this. and end using junk like this again.
good luck with the VIRUS magnet XP,
you dont need a driver for any monitor
$30 wopping bucks, the price of freakn, potted plant.
why deal in 50lbs of glass and VACUUM??????


why walk past this deal. and walmart
https://www.walmart.com/search/?cat_id=0&facet=condition%3ARefurbished&query=computer+monitor&sort=price_low#searchProductResult

Jun 12, 2017 | Compaq P110 21" CRT Monitor

1 Answer

My screen doesent fit and it is hourglass shaped it is driving me nuts


The problem is called "pincushion distortion" and happens because of the way CRT monitors work. There is circuitry in the monitor to correct the display, but it's not working in your monitor. Often this is because of bad solder connections to transistors in the circuit (they get pretty hot sometimes and can cause the connections to degrade). It can also be due to failure of those parts.

If you are comfortable working with electronic soldering and want to try your own repair, open the monitor and examine the board for bad connections. Repair any that are grainy or obviously cracked. Typically the parts that need resoldering are mounted on metal heatsinks so you have a place to start looking.

I don't recommend paying a shop to repair this. New 17-inch LCD monitors are so inexpensive today that it's better just to replace the CRT one.

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1 Answer

Compaq P110 21" CRT Monitor that is blurry in the middle of the screen and clear and crisp on the edge


As a result of aging monitor alignments drift, giving rise a a myriad of odd symptoms. Open the monitor up (of course it's got to be off), locate the scanning coils on the neck of the tube. Right there on are disk-shaped permanent alignment magnets. The scanning coils are electromagnets that produce the raster (scanning pattern), while the low-strenght permanent magnets allow the alignment to be varied ever so finely. Chances are that this alignment has drifted. Reconnect and turn on the monitor and with something being displayed, turn the disks one-by-one, observing the effect on the screen (a large mirror in front of the monitor would help much). Note that normally the disks are secured at the factory using hot glue. You may want to warm up the glue before starting the re-adjustment to make it easier to turn the disks. I am quite certain that this will solve your problem.

Jan 11, 2008 | Compaq P110 21" CRT Monitor

1 Answer

Red colour missing


- A bended color pin at the VGA connector. (If pin one is bend then there would be no red color)

- A defective VGA signal cable. If the internal wires were broken then there would be missing colors. You can check if the signal cable is good or bad by doing a continuity test using a multimeter.

- Dry joints in the CRT board such as in the CRT socket pins, video pre amp and driver IC and even at the connector pins. In fact this problem contributed about 80% of Monitor color problems. Applying fresh solder would usually solve the color problem.

- A defective IC either in the Video Pre-amp or Video Driver IC.

- Faulty components in the CRT board. It could be a shorted driver transistor or even electrolytic capacitors that the ESR reading had shot up!

- A bad CRT socket. Sometimes decayed glue could cause the internal pins rusted and thus affecting the colors. Replacing only the CRT socket would definitely solve the problem.

- A weak or a defective picture tube (CRT tube). Yes, I do came across one of the electron gun (most probably the cathode materials had used up) in the tube faulty caused a missing color in the screen. There’s no way to repair this type of problem-the only way is to replace the CRT tube.

- In the newer type of Monitor, color setting is save in the EEPROM IC . Thus, if the EEprom data is corrupted, you would also get a missing color! The only way to repair it is to reprogram the IC or use a soft jig to tune it back the color setting.



Article Source: http://EzineArticles.com/?expert=Jestine_Yong

Dec 05, 2007 | Compaq P110 21" CRT Monitor

2 Answers

Blank screen, clicking sound


It happened that to me last year. After 2 weeks of cracking sound symptoms, my monitor begun to blackout - no video signal but the indicator light is still available. I checked it inside using my tester, one of its transistor was burned-out. I tried to replace it and its working up to now. Possible cause of this is probably overuse of monitor without proper ventilation & cooling causing electronic components to overheat. Since I will not be able to actually check your monitor, the best solution for this is bring your monitor to a qualified TV/CRT technician in your area for proper diagnosis. He's the right expert and the second opinion to that kind of problem.

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