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.

Oct 20, 2013 | Sony KP-53HS10 TV

4 Answers

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.

Nov 25, 2011 | Televison & Video

1 Answer

Advent TS2766A tv has no picture and a horizontal blue line across the screen


Hello
Only one line across the screen is due to total vertical sweep failure. In all CRT tvs have both vertical and horizontal sweeps to spread the picture to the entire screen. If vertical sweep failure occurs, you will see a horizontal line across the screen, and if horizontal sweep failure happens, you will see a vertical line in the middle of the screen or no lines or a dead tv.
In your TV, now the sound will be ok, I thinks so, and posts this solution.

You just open your tv, and locate the vertical output section in the circuit board. It is very easy to findout. Just see the four wires goes from the deflection yoke [the coil fitted at the neck of the picture tube], there will be four of them, out of which two of them will be thick, usually red and blue coloured, and another two of them will be thin. You just follow the two thin wires, which in turn goes to a plug in adaptor and to the circuit board. Just put the circuit board upside down and follow the two tracks undeneath, which will guide you to the vertical output section.
There you can see an IC screwed onto a metal heatsink. That is the vertical output IC. Just check keenly for any loose solderings on the legs of that Ic. It may happen because, this Ic will heat up when the set works. Prolonged times of heating and cooling may make loose solderings or bad solderings. It is very difficult to locate the exact loose point because some of them may have micro type loose contacts, that can't be detected with naked eye.
You just resolder all the legs of that Ic, by applying a little more solder, without shor circuiting the terminals. Chek whether you have rectified the problem or not. If not check the main supply point leg voltage. If there is no voltage follow the track and find out the fault. If there is voltage, check the voltage at the output pin of that Ic. It must be somewhat half to that of its supply voltage. If main voltage is there, and there is no voltage on the output pin, or that voltage is equal to that of supply voltage, the vertical output IC is defective. Resolder it out from the board and go for a same type and number. Replacing it will solve your problem. There is an other rare chance to get the vertical windings in the deflection yoke to open. Bu it isvery rare, out of 1/1000 of it may happen. It can be checked by continuity measuring of that coins winding ends.
You just go with confidence. Take every precautions we take before working with an electrical equipment. Proceed. You can and you will. Take care. OK.

Nov 18, 2010 | Recoton Advent Advent TS2066A TV

1 Answer

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...

1 Answer

The screen picture bulges inwardly on the right and the left


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

Oct 02, 2007 | Recoton Advent Advent Q2035A 20" TV

1 Answer

Screen went full bright one day.


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

Jul 17, 2007 | JVC AV-27230 27" TV

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