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Philips colored tv model no. 21pt2252/68r

Raster and osd is ok but if you put an antenna or video signal on av jacks all you can see are diagonal or out of sync signal

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H osuleter 1mnit off

Posted on Apr 17, 2011


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Posted on Jan 02, 2017


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My tv jvc av 27530 has ablue screen and un able to operate by remote or manually so could you help me please?

many of the late model tvs with a crt (picture tube) would go to a blue screen when there is not signal from the cable or antenna so you don't get the irritating white noise and black and white dots running all over the screen, (called the raster), so probably you aren't getting a signal to the tuner. check your connection from the cable/antenna.

Sep 25, 2014 | JVC AV-27530 27" TV

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Raster is ok but signal comes either RF or AV,there are horizontal and vertical lines in front of picture

Video processor section IC has damaged. If you wish to get more information, check this link. Pull up older posts there.

Mar 20, 2013 | Televison & Video

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KP-61HS30 has sound but no video

1) the problem you have is lack of raster , the problem in tv has 4 phase 1) raster 2) picture 3) synch 4) sound.
2) test the power supply , check the horizontal output +125vdc ,vertical output from +80vdc, +al other circuit +12vdc, if there are missing fix it, see the diagram attached.
3) TEST the signal from tuner,i-f, detector, AGC

Jul 12, 2012 | Televison & Video

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Sony KV- 20FV12 get no signal on screen. Same cable outlet works on other TV as a test. Cable ON in menu. Auto Set search produces search but still no signal.


If auto search is going on smoothly, and there is no stations on air is memorized, and display no signal, there are tow possibilities. The first one is antenna is not connected properly. Check the antenna connection for firm. The second one is tuner fault. If the tuner inside the tV is faulty, or it does not gets proper voltage to work, this type of fault land display will see on screen. Check if proper voltages are comming to the tuner section in circuit board. If voltages are ok, and still there is no signal display, just check it with external video input. That is, connect it to any dvd or cd with AV connector, and set the TV to AV mode and play a disc. If there is picture, the video side of your TV is OK. If not, Video-chroma-RF jungle IC is faulty, and not the tuner. OK.

Feb 03, 2011 | Sony KV-20FV12 20" TV

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CAN I connect 2 one converter box and how.

If you're using a box that has an RF (antenna) output on channel 3 or 4 to the TV, you can insert a splitter and feed two sets. A splitter looks like this:


It takes the signal in on the single connector side, and splits it between the two output jacks on the other side. You can find splitters at TV retailers, Radio Shack, and even at Home Depot or similar stores in the electrical section. Run a cable from each of the output jacks to the antenna connectors on the two TV sets. Each TV will need to be tuned to the converter box output channel, and both sets will get the same program (whatever channel you have selected on the converter).

If the converter box has audio and video output jacks and the nearest set has an AV input, you can connect that set with the same kind of cable you use to hook up a DVD player (RCA plugs on the ends) and select the AV input to see the converter box signal. You would run a cable from the RF output connector of the converter to the second set's antenna jack. Then you wouldn't need the splitter, and the set using the AV inputs would get better quality picture and sound. Again, each set will get the same program as determined by the converter.

Hope this is what you need to get going. Thanks for using Fixya!

Dec 17, 2010 | RCA Analog (RCA) to Digital (VGA)...

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Lg 37le2r will only show black and white picture. Checked antenna ok.

I've encountered that experience before it needs some technical knowledge because the raster for rgb on your lcd is going bad and the video signal out put cable is mis aligned get someone to re align the raster and your video signal output cable

Jan 09, 2010 | LG 37LE2R 37 in. LCD TV

1 Answer

Have inherited RCA television with AV input on back, but remote and using buttons on TV allow only channels 4 and 7 to be be seen. How do you make televsion recognize AV input from back? RCA model F20600...

Bring up your video menu, make sure the cable/antenna mode is set correctly. Also do channel search/ auto program. If your AV is operating a DVD player etc., there should be a button to switch from TV to AV. If you are trying to input Cable/Antenna to AV jack you may have it plugged into wrong jack, it should go into 'antenna/cable in' jack. Hope this helps.

Nov 08, 2009 | Televison & Video

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Yamaha RX-V730 OSD problem

I assume you have a component connected source coming into the Yamaha to give it sync and you are component connected out to the monitor. If you have no input you won't have osd on component only without a signal to sync lock.

It is always possible that the 730 doesn't actually have component overlay for osd, just its a 2in 1 out switched affair. Hence the manual says you also need the composite/ Svid as well...They certainly don't use both at the same time. Newer units have full up + down video conversion but at this age it won't have.

Oct 31, 2009 | Yamaha RX-V730 Receiver

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No video, appears to be no video sync, diagonal rows of dots. Not an HDMI TV, switch is in TV position, cable checked ok by using a new cable, same problem

Sounds like you have an incorrect output signal from the Xbox or a fried chipset in the Xbox. Test the Xbox on another TV or monitor, test another video source on that same connection, if both of those fail, replace the Xbox. Hope it helps!

May 14, 2009 | Microsoft Xbox 360 Console

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