JVC AV-56WP30 56" Rear Projection Television Logo

Related Topics:

Question about JVC AV-56WP30 56" Rear Projection Television

1 Answer

PICTURE TURNED ON SET TODAY, AND THERE IS A BLUE LINE ABOUT 12 INCHES FROM TOP OF SCREEN. WITHIN IN THE BLUE LINE THERE IS DOUBLE PRINTS FROM WHAT SHOULD BE AT THE TOP OF SCREEN, ALONG WITH DOUBLE LETTERING WHEN PULLING UP THE GUIDE, AT THE TOP OF SCREEN THE COLORING IS YELLOW AND BLUE

Posted by MITZI DUNCAN on

1 Answer

Anonymous

  • 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
  • 3,130 Answers

Sounds like there is a problem in the convergence circuit. There should be an on board cross hatch and controls to adjust the lines to a white line. If these control wont adjust then the power ICs in the convergence circuit are most likly bad. if you know how to solder and know how to replace electronic parts then get a service manual find the part #s and order the parts . If you dont know how I can teach you here sorry. But I will tell you that a repair like this will run about 300 to 400 bucks to repair. Good Luck

Posted on Jun 04, 2006

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Tv had thin black line when turned on today whole screen scrambled

need to access the ez menu to reset the parameters u will need a tech to fo this
0helpful
1answer
0helpful
1answer

Red line across top/blue line across bottom of screen

Adjust your convergence. Under menu I think its the last choice at the bottom of settings or picture menu
0helpful
1answer

No vertical deflection, only a thin horizontal line.

Hi and welcome to FixYa,

A few ideas you may want to consider/explore;
  • While it is true that capacitors do dry out, the values that you posted (22uF & 32uF) are relatively low for the pump/boost capacitor which is responsible for the "top of the picture was a couple of inches short". Normally this should be around 100uF connected between pin8 & pin 12 of LA7836;
  • agree that the Vertical IC LA7836 is busted hence the single line;
  • in most vertical designs, there would be a diode from pin7 that goes to pin12 that needs looking into for a leak;
  • pin7 is the Vert B+ ~ 24VDC while pin1 is secondary B+ 9 ~ 12 VDC. In some designs to accomplish this, there is a dropping resistor from pin 7 to pin 1 and sometimes a zener diode from pin1 to GND parallel with a filter capacitor;
  • pin11 is the vertical output that goes to the yoke. From the yoke some design uses another capacitor (about 1000uF) before going to the ground through a low resistor (~ 1 ohm);
  • above mentioned parts need to be checked out of ciruit preferable and special attention to possible leaks of the diode when testing in reverse bias mode.
Good luck and thank you for using FixYa.
1helpful
1answer

Toshiba TP50G50 Theaterview picture is double with red color only

Your alignment is off. Go to the set up menu then convergence. hit right and you will be in the convergence menu. select the color that is not in alignment. The green line does not move. if blue and green are lined up the line will be cyan. if red and green are lined up the line will be yellow. when all three are lined up the color will be light. Best of luck!
0helpful
1answer

Picture within a picture on screen

Click here to find info the user's guide and how to turn close caption OFF. Download all the files and and you should find the info on page #19 but you will need to have the TV remote control or if your TV has a menu/set up button on the front panel, you can try to get to close caption using the channel up/down and volume up/down.
Good Luck.
0helpful
1answer

Mitsubishi VS-60111 picture distorted

how do I manually switch my t.v. from 480i to 1080i on dtv with remote.
0helpful
1answer

My Hitachi 65SWX20B Model, made in 02, just developed Picture disturbance

Can you post a picture of the set. This might be a convergence problem. seeing the set will confirm this.

Thank you,
shuttle83
0helpful
2answers

I have 47 inch with double color in picture, reds and green

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

convergence amp ic bad
0helpful
1answer

Toshiba 36A40 36" TV / Chassis No: TAC 0011

Bad capacitor in vertical circuit + possible vertical output IC
damage.If you can identify part locations and solder.....?
Not finding what you are looking for?

73 views

Ask a Question

Usually answered in minutes!

Top JVC Televison & Video Experts

Jaime Hernandez

Level 3 Expert

2351 Answers

matt martin
matt martin

Level 3 Expert

1259 Answers

 Grubhead
Grubhead

Level 3 Expert

5754 Answers

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

Answer questions

Manuals & User Guides

Loading...