Question about Mitsubishi VS-60603 60" Rear Projection Television

1 Answer

Having problem with red signal

The red in the picture is gone. I can adjust the screen controls inside the front of the cabinet and get the picture to turn red in color. Any help would be appreciated.

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  • Ryan Montgomery Oct 08, 2006

    Thanks for the help. I have an Electrical Engineering background and the service manual for the set. I will poke around on the driver card first and see what I find. I just needed a little help figuring out where to start. I do have one other question if you don't mind me asking. Can I swap the Red CRT driver board with the Green board to make sure that is the problem circuit? Is it okay to turn the TV on without a CRT board installed on the Green CRT if I use it on the red? Thanks so much for the help!

  • Ryan Montgomery Oct 09, 2006

    Switched it to Green CRT and problem followed. Seems like signal path is dead. Going to go through the PCB-CRT(R) schematic. I can't see anything physically wrong, but will start checking values of components. Thanks again for the assistance. Will keep updating my progress just in case anyone else runs into this problem.

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If you can get the red to come up by turning up the red screen control, then your problem is in the red crt drive circuit. It could be a bad connection on the red crt board or CRT socket. A defective video drive transistor or associated componets on the CRT drive board processor/video jungle IC. A schematic and a multimeter should point you in the right direction. if you have no TV repair experience, I would advise for you to call in a pro to assist you in this repair, as there are no user serviceable parts inside this set. Good Luck

Posted on Oct 08, 2006

  • Larry  Dillon
    Larry Dillon Oct 09, 2006

    Yes you can swap out the crt driver board to check it. Switch it with the green one and thats is the middle crt, to see if the other crt acts up. If it does not then of course most likly the CRT is bad.

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1 Answer

Picture is rolling


In the old days there was a control at the back of every tv labelled "vertical hold" that needed adjustment when the picture rolled. As tv sets became better that control was at first moved inside the cabinet and then finally deleted.

The vertical hold controlled the amount of synchronising signal (that is extracted from the signal received from the antenna) reached the frame oscillator. Today's electronics are so stable the vertical and horizontal synchronisation is automatic so while sometimes a rolling picture can be caused by a bad signal it almost invariably caused by an internal electronic fault needing the attention of an engineer.

Oct 19, 2017 | Televison & Video

1 Answer

My big screen panasonic tv has a double fuzzy picture what am I supposse to doto fix it


Adjust the convergence or reset it to factory default. Use only the remote when adjusting convergence. The front controls have no effect.
  1. Press action button to enter MENU.
  2. Navigate to SETUP.
  3. Scroll down to CONVERGE.
  4. Press VOL > to select.
  5. Press CH buttons to navigate up or down.
  6. Choose CONVERGENCE ADJ or RESET TO DEFAULT.
  7. Press VOL > to select.
  8. If CONVERGENCE ADJ is selected the align Green to Center screen will be displayed.
  9. Use the navigation buttons on the remote control to align the horizontal and vertical green lines on screen, with the cabinet reference marks on top center and left
    center of cabinet.
  10. Press ACTION button to display red center correction screen.
  11. Use the navigation buttons on the remote control to align the red cross with the white cross pattern at the center of the screen. To prevent picture tube damage do not leave test pattern on for an extended period of time.
  12. Press “0” on the remote control keypad to display the BLUE center correction screen, repeat procedure for adjusting blue. If needed press “0” again to return to RED correction screen. An adjusted cross pattern appears white with a minimum of color protrusion.
NINE POINT CONVERGENCE CORRECTION
Remote Control must be in TV mode.
  1. Press ACTION button to display red correction screen.
  2. Press the 1 through 9 keypad buttons on the remote control to select the desired convergence position.
  3. Use the navigation buttons to align the RED cross with the white cross pattern.
  4. Press “0” on the remote control keypad to display the BLUE correction screen, then repeat procedure.
  5. To exit press ACTION button repeatedly, then press CH up.


Nov 07, 2009 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Color lines out of focus


Best Solution posted on Apr 12, 2008 Asker's Rating 3%20stars_w.png
dc2eb76.jpg MikeNJ1964
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You have a completely different problem. The screen voltage for the blue picture tube is slightly too high on your set. This will put fine lines in the background of the picture, called retrace lines. This is very common and easy to correct. Remove the front speaker cover and the access panel behind it. Look inside and you will see a black box with six controls, each control having a little white glue on it. This is the Focus/Screen block. Three controls are labeled Focus and three are labeled Screen. The screen control in the center is for green but I am not sure if the screen control on the left or right is for blue for your model. With the TV on, set it to VIDEO 1 but do not connect anything to the VIDEO 1 jacks. This will produce a pure dark picture, showing any faint lines in the background. Choose one of the screen controls and increase (turn clockwise) it slightly. If the blue lines do not get brighter it means you are turning the red screen control, so put it back where it was and choose the other screen control. When you find the blue screen control, decrease (turn counter-clockwise) it until just when the blue lines are gone. If you want you can check that the red and green screen controls are set to just below the point where their faint lines are visible. When done, replace the panels and your picture will be back to perfect.
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MikeNJ1964 was exactly right! I have a Sony KP-65WV600 that had horizontal green lines that showed when the picture was darker. I had to remove 3 screws on the right and left side of the tv holding in the speakers...carefully pop out the middle panel from the clips holding it in....remove 4 screws from the cardboard in the middle and remove the cardboard. I then saw the six screws. The adjustment screws were the three below. I turned the middle screw until the lines dissapeared. I tried the left screw and blue lines appeared which I then adjusted away.
THANKS a bunch. SAVED me money!!!

May 15, 2009 | Sony KP-65WV600 65" Rear Projection...

1 Answer

The screen turn completly red after about 20 min being on


Usually that is a sign that your red picture tube is ailing. However there is a chance that it can be adjusted out, at least buy you time worst case.There is a voltage control in the front of the TV, you have to remove the bottom front half of tv to get to it. Some Sony's have 2 screws hiding at the bottom of set in front hidden behind 2 plastic covers,others just have screws along the backside.Be careful there are wires to front panel attached so remove slowly and leave wires on just move it out of your way..Once you remove that there is a small access panel to take off. You will see the voltage control (small plastic square with 6 knobs) The top knobs are focus controls for each tube the bottoms are for voltage adjust. The far right knobs are for red.So you can turn the red voltage control SLOWLY to the left,this will reduce voltage.Reduce until you see the red lines disappear. If you go too far one way or the other with the voltage control the tv will shut down and you'll waste time readjusting and turning set on until it stays on. If you can't adjust it enough to get all the red out without shuting down tv tube is in too bad of shape.

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1 Answer

Screen is too dark


with a flashlight at the back of the set often times there is an adjustment you can make WITHOUT having to open the set!!!

look for a little hole in the back of the plastic cabinet labeled SCREEN then with a flat screwdriver holding only the plastic handle, insert it into the hole and SLOWLY rotate until the screen brightens up until it is watchable.

This is compensating for age in the picture tube. you may get a few day or a few more years! of a much better picture.

If you start seeing some thin lines on the screen then back off you have gone too far. Do this adjustment with the brightness and contrast controls on the menu turned up all the way.

it is also safe to play with the focus adjustment right next to the screen if thing seem a little blurry. you will need two people one to watch from a distance for best picture.

Feb 10, 2009 | GE 31GT660 TV

1 Answer

Greenish tint to picture


there may be a green tube issue or there could be a screen voltage or screen control adjustment issue. There is a control block with six adjustment screw inside the front panel in front of tv. WARNING high voltage exsit in this set and adjusting these controls really should only be done by a tech,....So be careful

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2 Answers

Curved blue lines on screen.


You have a completely different problem. The screen voltage for the blue picture tube is slightly too high on your set. This will put fine lines in the background of the picture, called retrace lines. This is very common and easy to correct. Remove the front speaker cover and the access panel behind it. Look inside and you will see a black box with six controls, each control having a little white glue on it. This is the Focus/Screen block. Three controls are labeled Focus and three are labeled Screen. The screen control in the center is for green but I am not sure if the screen control on the left or right is for blue for your model. With the TV on, set it to VIDEO 1 but do not connect anything to the VIDEO 1 jacks. This will produce a pure dark picture, showing any faint lines in the background. Choose one of the screen controls and increase (turn clockwise) it slightly. If the blue lines do not get brighter it means you are turning the red screen control, so put it back where it was and choose the other screen control. When you find the blue screen control, decrease (turn counter-clockwise) it until just when the blue lines are gone. If you want you can check that the red and green screen controls are set to just below the point where their faint lines are visible. When done, replace the panels and your picture will be back to perfect.

Apr 11, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Thin red horizontal lines across screen


replace the focus block or try to adjust the screen control on the focus block for red only. this will affect the white balance of the set so adjust it carefully. the focus block is located on the front inside the set. remove the speaker cover then the 4 screws on the front plate. the focus block is 3" x 2" black box with 6 adjustment posts three for focus and three for screen. adjust only the affected screen (R).

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3 Answers

Sony kp-51hw40


Yes you have bad green and red crt but with an adjustment you can still use it. remove the front panel and you'll see the focus pack (it;s a black piece with 6 rotating knobs on it. Adjust clock otherwise the red and green screen (the bottom line knobs) till the lines has gone. The better way to check it is to adujt in video input with no signal, just black screen.

Nov 06, 2007 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Kp-46wt510 rear projector


Have you tried adjusting the red screen control located inside the front of the set? Usually behind the speaker grill. It is part of whatis called the control focus/screen block. There are 6 controls on this assembly. Be extremely careful high voltage is present. If you turn the red screen control and no red is seen onthe red gun , there are two possibilities. A) bad picture tube B)open filament connection on crt board. Scrivitron

Jun 04, 2007 | Sony KV-27V22 TV

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