Question about RCA P56950 56" Rear Projection Television

3 Answers

P56938 Convergence Problem

I have a P56938 with a PTK195S1P chassis. I have done a lot of reading of other posts and have a couple of questions. When i look in the back of my set I only see one fuse (back center) and not 3 as i have read. Is this the correct fuse to check to see if its blown (which it has not BTW). Also right infront of you is a circuit board which is mounted up on the right facing back which contains a single IC on it. I am getting bowing of my picture and also the menu is missing the adjustment sections. Is the board that i am seeing the one that i should change or just change the IC. Also how can i tell if its the board or the amp that has gone. I have taken photographs if it will help in anyway
Thanks in advance

Posted by on

  • Coops599 Jun 26, 2008

    I recieved email saying that I had a solution from Jaile867 and from VOTIT and also a comment. All I see is the solution from VOTIT. How do i see the other solution and comments please.

  • Coops599 Jun 27, 2008

    I got an email saying i had a solution from JASON867 as well. Where do i see that solution

×

3 Answers

  • 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.

  • RCA Master
  • 6,487 Answers

Check this link it may help you with your problem:
http://www.freelists.org/archives/techassist/04-2003/msg01338.html

Hope that helps........

Posted on Jun 27, 2008

  • 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
  • 2,071 Answers

The convergence section is using a STK IC ,if you find ic screw in a heat sink that ic has mark stk ,the problem of convergence is the STK and resstor change value this is to be checked, these resistor is associated to the pins of stk and reheating all joints of parts there this necessary to this kind of problem .. find a tv technician to do works for you ... in order to avoid high voltage shock..

http://www.repairfaq.org/sam/tvfaq.htm#tvtvrep

http://home.earthlink.net/~olegfilipov/ConvergenceFix.htm

Posted on Jun 26, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 2,267 Answers

I've found some this i nfo that could help you troubleshoot your TV.
Your problem is likely to be in the convergence board power supply
p/n 250868. May not be supplying the - and + 15 volt supply, abd the +45
volt and - 45 volts account shorted diode cr19710. p/n 164590. also replace
cr19709 the one next to it same part #. Also if stk730-130 is bad it can
cause this problem. Also check r 19703 (750k 1/2watt) may be open,
q19700(bc457)or nte123a could have base emitter open.

Posted on Jun 26, 2008

×

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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

What is the part number for the convergence fuse?


I not only answer about 300 questions each week here I read answers other experts have posted in the past---here is one that should help you a lot:

http://www.fixya.com/support/r5119668-fix_convergence_problems_rca_chassis

SD TECH

Apr 24, 2012 | RCA HD52W59 HDTV Projection Television

1 Answer

Do I need to remove the entire Sub Deflection Board in order to replace the convergence ICs STK392-040


There are only two ways to do it.

You can try to unbolt the entire chassis and tilt it up so you can get at them OR-

you can unbolt the board(not every wire or plug needs to be undone for this) so you can tilt the board up and get at the chips.

These except for a few models are not the most easy sets to do this repair on.

Are the chips on the middle of the chassis? If so it is either get the entire chassis up or unbolt the board enough to get it up--a lot of work to get the board completely out of the set.

Some of the nicer versions of these sets had the chips on a small board above the main chassis--easy to get out and work on---if they are down on the main chassis--mark every plug you remove etc and you should be able to get the board up without taking all the plugs out.

Let me know if you have questions--I am here to help and have a lot of experience with these and other sets with convergence problems.

If this information has helped you rate this solution as I do this here for free.

SD TECH

Dec 24, 2009 | Samsung PCL541R 54" Rear Projection...

1 Answer

3D Convergence problem


STK 730-020 you should have on 1 on small board if this is the chassis am thinking it is Medium size IC Black with these numbers on it.

Feb 15, 2009 | RCA P46924 46" Rear Projection Television

1 Answer

43UWX10B problem with green


if you have a 2 IC convergence chassis they dont control the green , However if you have the 3 IC chassis the green is controlleed by the third IC these are usually STK4275 or simallar single amp ICs. Which type chassis does your hitachi have? Its possibly related to the digital convergence board if all resistor near the ICs are good. Do you have the service manual? I can post a link where you can get the full service manual if you need one

Mar 29, 2008 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Convergence problem on RCA HDTV


What is the model and chassis number for your set? Te chassis number is most important to diagnose a RCA set. Please post the chassis number located on the rear panel of the set.

Feb 23, 2008 | Televison & Video

1 Answer

Parts identification


I can help you with this,i will get back to you later today its 3am here and i dont have my breif case with me i just order a FBT for a RCA PTK195 .ThankYou for using FixYa. Have a Nice Day.

Feb 10, 2008 | Televison & Video

1 Answer

Rca projection tv serv#p56938yx mod#p56938 serial#c135c50tx chassis#ptk195s16p cant id


Here are some numbers to call for Flyback Replacement
Electronica 1-800-772-5578
Asti 1-800-221-1828
you will need RCA chassis# PTK195s16p - flyback number1541938b.
ThankYou for using FixYa. Have a Nice Day.

Feb 07, 2008 | Televison & Video

1 Answer

My toshiba 42h81


Your convergence amplifiers have failed. There are lots of posts on this site for this problem. Take a look at this link:

http://www.fixya.com/support/t261950-43h71

There are a couple of links on this post that you will find helpful if you want to repair this yourself.

If you have more questions just ask.

Dec 28, 2007 | Toshiba 42H81 42" Rear Projection...

Not finding what you are looking for?
RCA P56950 56" Rear Projection Television Logo

95 people viewed this question

Ask a Question

Usually answered in minutes!

Top RCA Televison & Video Experts

The Knight
The Knight

Level 3 Expert

69654 Answers

matt martin
matt martin

Level 3 Expert

1198 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a RCA Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...