Question about Apex Digital PF2720 27" TV

1 Answer

Picture scrolls on all inputs except Componenet

My TV was in storage for about three months. When I put it in my apartment in October 2005, a problem had appeared: when the picture was intense -- for example, a bright solid color like white or orange -- the screen would "scroll." At first, it was annoying, but tolerable. Eventually, however, the picture started to scroll all the time. This happens both on Composite and TV Tuner input. However, it is completely fine on Component input. I'm not able to test S-Video because it looks like one of the pin holes on the input connector was damaged at some point. At first, I thought the problem might have something to do with NTSC decoding, but I realized that the component inputs are NTSC encoded as well, so that's out. I've worked as a computer technician, so I'm fully capable of making any repairs to this set that are needed, but I don't have experience with TVs, so I don't know how to troubleshoot. I've thought about de-soldering the S-Video connector, in case that whatever damage is there is affecting the picture. However, since it's only one pin, I can't fathom how any damage would cause a short or anything that would disrupt the picture. Since this was a progressive-decay problem -- i.e. it started with the bright picture and then eventually started happening all the time -- I'm a little stumped as far as troubleshooting goes. Perhaps a capacitor slowly died on me? I don't see anything exploded or badly soldered inside. Any ideas?

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,476 Answers

It certainly sounds like a defective capacitor. Was the storage area hot? Electrolytics can dry out and change value over time or flat out short out. They don't cost that much and it sounds like you know what you're doing around TVs. I would start in the vertical circuit and replace all electrolytics. Also look closely at all connections with magnification and solder anything which looks suspicious. If you have a scope and know how to use it a check of various waveforms should identify the culprit. Good luck and remember safety.

Posted on Jul 18, 2006

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Sony rear projection tv kp-51ws500 no picture. Standby light blinking red 5 times. TV has sound but no picture. Before the picture went out TV was turning green then red and had curved lines going...


Blinking 5 times is a sign of at least one of the three video tubes overcurrenting, which will eventually shut off the image. It happened with me but with my red tube over-illuminating. The solution is to reduce the drive intensity on the offending tube. Remove the front speaker grill. Behind it you will find a panal with 6 pots, these are drive (brightness) and focus for each of the 3 colors. My fix was to turn down the red intensity to zero and (after a restart) bring it up slightly till the image was acceptable, colorwise. I did have to adjust all 3 intensities to get a decient color balance along with the focus's on all three tubes (the drive intensity adjustments will knock the focus out as you go). I used the auto-adjust patterns to focus on, and you may want to use a stationary image, such as a paused DVD scene or a video game, to focus on. I still haven't found a way to clear the error code, but I learned to ignore it. The result isn't perfect, but it's very acceptable and it'll do for awhile (and it didn't cost anything!). Good Luck.

Dec 11, 2010 | Sony KP-57WS500 57" Rear Projection...

1 Answer

HAVE A JVC AV-56WP30 REAR PROJECTION TV THAT THE PICTURE APPEARS IN A BOWED SHAPE. THIS TV WAS JUST REPAIRED FOR THIS PROBLEM ONE WEEK AGO AND IN 100 MILE DRIVE TO PUT IN APARTMENT IT IS AGAIN NOT WORKING....


The convergence is dead,Must replaced Convergence ICs and resistors.Tell the shop to repair it again.They probally didn't replaced the ICs or resistors.This problems can't come back about a week,at 6 months i can understand.

Jan 11, 2010 | Televison & Video

1 Answer

Odd picture....


Yes, your convergence is off. There is a function in the menu for adjusting these propoerties. It is supposed to be done monthly but rarley is. If it is ten years old or more, the cooling fluid in the projection tubes can get low, causing fish bowl effect. Not a cheap job and time intense. Try adjusting the convergence first. It gives you three screens to aling each color then save. Good luck!

Jul 25, 2009 | Televison & Video

1 Answer

Colored wavy lines on screen


This is a Logic board problem, not so easy to replace in Hitachi but well worth the repair if I had your zip code I could recommend a person or three. But the problem is a problem in the logic board and will beed replacement, Thanks for using Fixya.com

May 14, 2009 | Hitachi P42H401 42 in. Plasma HDTV

1 Answer

Picture is blurry


remove front panel and check the 6 control knobs adjust the intensity of each color as well as the focus of the picture with those colors.be sure to mark the knobs so you can return them to there original position if the set shuts off. Good luck

Jan 28, 2009 | Hitachi 51F500 51" Rear Projection...

1 Answer

Samsung SlimFit 30" high pitch whining noise


I have had the same high pitch tone problem for several months after about 20 minutes of use. It is so bad it's rendered the TV almost unwatchable. I contacted a repair place from Samsung's website. I was told that is likely the flyback transformer. I don't know what it is, but it sounds cool like a flux capacitator. I was told it would be about $100 to fix. However, I have had very little luck getting the repair shop to order the part and do the work.

Sep 04, 2008 | Samsung TXR3079 TV

1 Answer

Intense white & coloured horizontal line on black background on startup


I wouldn't attempt as the capacitors on a tv store around 25000 volts this is more than enough to kill you and they keep there charge even when the tv is off. Either take it to a repair shop or put that money towards buying a new tv - Do not even attempt to open the tv. (It sounds like maybe a tube has gone or the electromagnet that makes the beam move vertically is gone.

Sep 03, 2008 | Televison & Video

1 Answer

NO VIDEO


I have a Samsung 50" plasma, that has been blacking out over the last 6 months. A 9/2005 set. Now its practically unwatchable as it happens 3 times in an hour. Its not heat related - I have a high volume 9" fan activated on TV power on. Turning the set offf/on usually makes it come back for a now short while. Considering to go put it in the back of my pickup and park it in front of Best Buy and discourage Samsung purchases. This is the 2nd Samsung TV I've purchased (the other a 32" tube) I gave to my folks a couple years ago and its gone bad as well. Samsung product may look good, but their video engineers are not.

Jan 19, 2008 | Samsung HP-R5052 50 in. Plasma HDTV

2 Answers

Daylight savings time adjustment


Go to:
http://www.emersonelectronics.ca/emerson/en/product/details/VLJT600
or
http://www.emersonelectronics.ca/emerson/en/category/list/694

The solution appears to be common for all recent Emerson SmartSet(tm) radios (BTW it's not the clock fault, it's the law).

Remarkably Emerson foresaw this, so here we go.

Short version (may require three hands :-) )

DST start:
Press and hold MONTH/DATE and ALARM 1 buttons for at least 3 seconds until the display changes to something like "4 F" (Fourth month, First week) alternating with something like "4. 1" (April 1st, for 2007) or "4. 6" (April 6th, for 2008). While holding down the MONTH/DATE and ALARM 1 buttons, now press the DOWN or "-" Set button (3 times) until "3F2" shows (Third month, second week) alternating with something like "3.11) (March 11th, for 2007) or "3. 9" (March 9th, for 2008). Let go of all buttons and we are now half done.

DST end:
Press and hold MONTH/DATE and ALARM 2 buttons for at least 3 seconds until the display changes to something like "10 L" (Tenth month, Last week) alternating with something like "10.28" (October 28th, for 2007) or "10.26" (October 26th, for 2008). While holding down the MONTH/DATE and ALARM 2 buttons, now press the UP or "+" Set button (1 time) until "11 F" shows (Eleventh month, first week) alternating with something like "11. 4" (November 4th, for 2007) or "11. 2" (November 2nd, for 2008). Let go of all buttons and we are now done.


This should remain until either the lithium battery fails or Congress undoes its work.


BTW the Emerson addendum has a history error. The time change in the first Sunday in April and the last Sunday in October did not start in 1966, but in 1987. Before that starting in 1966 the standard was set at the last Sunday in April and the last Sunday in October. Except for 1974, when it was January 6th, 1974 (DST start) and October 27th, 1974 (DST end) and in 1975 when it was February 23rd, 1975 (DST start) and October 26th, 1975 (DST end). Before 1966, state and local governments had many different rules. Source: http://webexhibits.org/daylightsaving/e.html

Oct 28, 2007 | Emerson CKS3029 Clock Radio

Not finding what you are looking for?
Apex Digital PF2720 27" TV Logo

101 people viewed this question

Ask a Question

Usually answered in minutes!

Top Apex Digital Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75169 Answers

Jaime Hernandez

Level 3 Expert

2335 Answers

robert landry

Level 2 Expert

96 Answers

Are you an Apex Digital Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...