Question about RCA D52W19 52" Rear Projection Television

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Tuner problems The picture on channels 2 thru 7 are poor and are somewhat snowy. On all these channels, there are vertical lines traveling across the screen.(like AC lines) Channel 3 and 4 are the worst. All the other upper channels have a flawless picture. To rule out cable problems, I put another TV next to it. No snow or lines on any of the channels. Does it sound like the tuner is "going south"? Are refurbished tuners available? Thanks in advance for your advice.

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Re: Tuner problems

It sound like the tuner to me here is rca part# for the tuner 264658 abour $70.00. good luck

Posted on Jan 12, 2007

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2 Answers

Sony rear projector TV problem, KP-61v35

This is a problem with the vertical circuit. This can be as simple as poor connections at the vertical IC or a defective IC. If you can solder, you should be able to fix this yourself. Let me know if you wish to attempt the repair and I will supply additional details and instructions.


Feb 26, 2009 | Sony KP-61V35 61 in. Rear Projection...

4 Answers

No picture

I can suggest unplugging the TV and leaving it off over night. This will do a power reset and may correct the problem. If not the only way to determine the problem with the TV is testing the circuits. For a simple repair you can expect to pay in the ballpark of $100 for the repair.

Hope that helps.....

Aug 29, 2008 | Mitsubishi VS-50605 50" Rear Projection...

1 Answer

Picture is not clear, alittle snowy

the first thing u need to do if the picture is snowy and u have cable is u can call them out to check out the cable line if u dont what to to that if u have another tv set u could hook up in the same spot as your other tv that is snowy and see if the other tv is doing the same thing if it is u know it is your antenna systems and not your tv, now if it is your tv it will have a bad tuner in the set but if u have a vcr u could hook the vcr thru the video inputs that is on your tv and then switch your tv to video source and use your vcr as a tunner thru your video input on the tv and u dont have to speen any money on a repair and it will work just like your tv tuner does.

Oct 12, 2008 | Projection Televisions

1 Answer

Snowy picture

Usually a snowy picture means that you have a bad ground connection. You should see that some channels are beter than others. Verify that the cable connection is good. Try a different cable if you can. If that has no effect, than we need to start looking at the tuner itself. If you can change channels but just have a poor picture, chances are that a resolder of the tuner section will resolve the problem.

Keep us posted.

Jul 29, 2008 | Mitsubishi VS-50605 50" Rear Projection...

1 Answer

Snowy picture

.u need to replace the tuner of ur tv set...its a technical work better call service technician

Jun 28, 2008 | Samsung HL-R4266W 42" HDTV-Ready...

1 Answer

No picture

Sound like you lost Vertical Deflection.  Youshould not have a line across the screen because this could destroy the threeCRT Red, Green, and Blue (Picture tubes) if left on to long. There is a protection circuit built in to protect your CRT’s.    Check on the PCB-SIGNALboard (Tuner located on this board) transistors Q-206 Collector should be around 1 Volt Base and Emitter 0V. If the voltage atthis point is greater then 5 Volts the Vertical output IC-401 (Mounted on heat sink 7 pin inline IC) is bad, Part # LA7845.  Pin Voltages should be PIN 1= 0V, 2= 34V, 3= 32V, 4= 3V, 5= 3V, 6= 33v, 7= -6V.  Data sheet located at

Jun 22, 2008 | Mitsubishi VS-6043 60" Rear Projection...

2 Answers

Mitsubishi WD-62825 vertical lines, blue snow, picture jumping

sounds like dm module

Dec 28, 2007 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Picture quality

Which channels? Tuners are divided into bandwidths-----
2-6 is V low, 7-13 is V high and so on.If say, 2-6 acts up, but
7 thru 13 never does,then the tuner is bad.
This solution assumes that video inputs were ok......T.

Oct 24, 2007 | Toshiba 53AX61 53" Rear Projection...

1 Answer


Ther is a test you could do is you had the proper equipment, and that would be to inject a know good RF signal into the tunner F connector and chech tha point where the RF/IF is converted to audio and video, to determine if the proble is a bad tuner or not. The equipment is a VA62A Universal Video Analyzer. Its a great piece of equipment for this type of work. another thing you can do is get an RF Modulator from Radio shack and input a video and audio signal in to it and set it to channel 3 and connect the F connector to the TVs F connector. The set the TV to channel 3 you should see the picture and hear sound in channel 3. The VA62A is best because you can set it to emulate all of your channels from 1-87 standard TV and Cable TV. In any event a test needs to be run to see if the tunner is at fault.

Aug 23, 2007 | RCA D52W20 52" Rear Projection HDTV-Ready...

2 Answers

Picture is snowy on every channel. I hooked up my playstation and set it to the correct channel but the screen display is the same. I tried using the menu and the menu comes up just fine. The menu goes on...

If one tv looks good and another one dosent look good or operate correctly then we know for sure that the problem is not the antenna. Now the menu comes up ok because the menu is injected after the tuner into the video curcuit from a osd or microprocessor. sounds like you could have a defective tuner or antenna block assy.

Mar 27, 2006 | Toshiba 42H83 42" Rear Projection...

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