Question about Recoton Advent Advent Q2035A 20" TV

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Screen is red

I have a crt tv from advent and the picture is barely visible because the screen is red with horizontal lines through it.

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Jmeek: unfortunately there's not much you can do about this one. it's either the red gun in the crt has shorted, because of impurity build-up, or the driver for the red gun is shorted. either way it's repair or throw away time. tv repair shops used to carry a picture tube reconditioner that would zap the color guns in the crt to burn-off the shorts. it's doubtful they would have a socket that would fit your crt, but they might. they could possibly find a replacement for the driver if it's defective. but given the low cost of lcd's, that's i would be going. be sure to recycle the monitor correctly. please don't just toss it in a dumpster. there are computer part recycler's thru-out most of the US.

peace-out

Posted on Jan 10, 2009

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Hi, I had a problem with my Sony CRT television.


The faint background lines are vertical flyback lines. Start your diagnosis by turning the brightness and contrast controls to minimum and view the screen in a darkened room. If you can now see a raster with horizontal lines visible then it is likely that the tubes A1 screen voltage is excessive. The screen voltage is usually within the range of 400v to 600v. Adjustment for this is often part of the flyback transformer. Check all high value resistors
in the screen and focus circuitry. Some of these reistors may be
built into the flyback transformer. As the picture gets brighter the beam current increases, this will eventually cause the X ray protection circuits to trigger shuting off the set. A fault in the video drive circuits to the cathodes of the tube will cause similar symptoms but usualy results in a predominance of one colour, ie
bright red, blue or green raster with flyback lines.

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Horizontal bowed lines


Since when you experience the problem? what is the first initial problem before you got that one now?

Thanks
pincer

Mar 20, 2008 | Mitsubishi WS-55807 TV

Tip

How to set convergence on Projection TV ' s


I have given an general explanation on most projection TV ' s

  1. Enter the menu on your TV. Use the remote control and bring up the menu.
  2. Choose "Convergence." This may be under "Picture Settings," "Function" or "Advanced Options."
  3. Select a color. You will have red, green and blue to choose from. Do each one, starting with red.
  4. Press "Enter." A crosshair pattern will appear on your screen.
  5. Adjust vertically. If there is a horizontal red line visible, press the up or down arrow keys (or channel up or down) to adjust the convergence until the line is superimposed on the horizontal-center line of the white crosshair.
  6. Adjust horizontally. If there is a vertical red line visible, press left or right (or volume up or down) to adjust horizontally. Do this until the line is superimposed on the vertical line of the white crosshair.
  7. Save settings. It is important to save your settings when you are done, instead of simply exiting the menu.
  8. Repeat these steps for all colors.

on Mar 18, 2010 | Televison & Video

1 Answer

36' toshiba with red screen and glowing horizontal lines.


Bad connections on red drive transistor on crt module. Resolder all connections on crt pcb.

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Advent 32" tv flat screen


It's likely one of two things. There are drive transistors on the CRT board which control the output to the guns, the one that controls the red gun may be open, also check this board for burned resistors. It could also be a bad picture tube although this is less likely. If it is the tube, replacements if available are fairly expensive.

Oct 17, 2008 | Recoton Advent Advent Q2035A 20" TV

1 Answer

My screen have some red lines


I will assume from you description that this is a rear projection crt(picture tube) tv. if this is true I have good news/bad news.
faint red horizontal bowed lines in the picture indicate the screen(G2) voltage for the red tube is too high.Slight lowering of the G2 adjustment will eliminate these lines. I stress SLIGHT because too much adjustment will mess up the gray scale .
The bad news the red crt made be bad. if the adjustment works but in the future the problem reappears then suspect the red crt.red crt replacement is probably not economical to repair.

Jun 09, 2008 | Mitsubishi WD-52525 52" Rear Projection...

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you have defective horizontal linearity! replace the capacitor at the hot side mostly 160uf 180V or 160uf 160V.

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Hello, please check the 10uf/200V capacitor around flyback transformer. Best regards, Arpi

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Turned on TV and all that shows up on the screen is horizontal colored lines

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