Question about RCA HD52W140 52" Rear Projection Television

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How do you check the tubes

Everything works fine but no colour just blue, is there a fuse or board I should check if they are not working where should I start

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Try and see if you can put the crt circuit on another tube, if not then try replacing the crt circuit first. possible there is fluid on the crt circuit causing problems.

Posted on Apr 08, 2008

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See if there is any liquid on the boards, then i would tap with a plastic device on the board see if there is a loose connection

Posted on Feb 04, 2008

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1 Answer

Can dust build up on a picture tube's circuit board cause them to overheat and shut the tv down.


dust will not cause an issue like this in this type of set--RCA? it means a short of some type exists and the set shuts down or blanks the tubes--all you have described as far as appearance is normal.

RCA sets like this can be difficult to repair and also if you Google the model number you will see they have a lot of "problems".

Apr 23, 2012 | Projection Televisions

1 Answer

I have a KP-51HW40. Everything works fine but the screen stays blue. What could the problem be?


if blue picture tube is blooming with retrace lines? it's because it developed internal short. you might try to turn down screen on blue picture tube. always mark with fingernail polish so you can return to starting position. J.D.W.

Jun 24, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Sony KP-51WS510 51 in. Rear Projection Keeps blinking 5 times. The red and green projectors are working fine, but the blue is not working. Sears service replaced the power supply, and the first board, then...


You may want to recheck your connections coming off the blue tube to the board. Also check the IC links/Pico fuses on the power board. I have a repair manual for this Tv if you need it. shanesebay304@yahoo.com

Dec 10, 2009 | Sony KP-51WS510 51" Rear Projection...

1 Answer

Problem with a colour display on Hisense tv


If your picures are all purple it means that the green colour is missing. TV colour is made up by mixing Red, Green & Blue. Removing Green leaving Red & Blue makes purple. Study the green colour circuit for a fault and confirm that the green gun inside the tube is working.

Aug 31, 2009 | Hitachi 60SBX78B 60" Rear Projection...

2 Answers

GVA TV


I have a GVA TV problem with his remote First four minutes it work properly then stop working. Batteries replaced many times still same problem. Give the solution.

Jan 12, 2009 | Projection Televisions

3 Answers

Colour problem with rearview projection tvred


you will need to change out the convergence board if the blue and green wont align its time for a new board

Aug 21, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Our picture is green


This is not a user serviceable problem. Apparently the red and blue screen colour tubes/guns are inactive. Possible open green screen control. Also, if CRT type, the tube may be failing

Apr 14, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

2 Answers

Picture all blue in cloour


this an indication that one of the tubes may be out. red or green

Feb 04, 2008 | RCA HD52W140 52" Rear Projection...

1 Answer

Blue Tint


Most likely cause would be a loose solder connection that expands as the set warms up until it no longer makes a connection. You may get the blue to come and go by hitting the side of the cabinet after the set is warmed up awhile. (don't hurt your hand doing this, and don't keep doing it to "fix" the set. The connection will have to be located and repaired). Otherwise, there could be a component going bad, including the blue picture tube.

Nov 21, 2006 | Samsung HCN473W 47" Rear Projection...

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