Question about RCA D52W20 52" Rear Projection HDTV-Ready Television
1)when picture isnt on but television is, it has 3 color lines on dark screen: blue, green & red that curve at top of screen going horizontal in a curve. 2) when picture is on, it is not focused but is viewed like when you are looking at a 3D movie but without the glasses on. Please help, thanks for your assitance. Same exact problem as charliensd. When I turn the TV on, before the picture comes on, three curved lines appear at the top of the screen, then when the picture turns on, it looks like a 3D movie without the 3D glasses. What is going on?
Yes it is convergence problem.. IC804 controls red convergence. But in time IC805 will also fail as well. Replace them both with STK392-110. Also, check for cold solder joints in the vicinity of these ICs. You need to replace following ICs, may be 2 pieces in your tv for convergence problem. IC, STK392-110T
First, take a look at the following web site information. Unfortunately, some RCA sets have manual convergence boards - which means you can do nothing but replace it and adjust the manual controls on the board itself.But some of the newer ones (Maybe yours) can be accessed through the service mode. So, give it a try. I have also copied the part of the web site that gives the entry code to get into the service mode:
5.4 GE / RCA / PROSCAN
Read the _ SERVICE MODE WARNING _ before proceeding.
To enter service mode, push and hold the [Menu] button on the set. While holding, push and release the [Power] button, then the [Vol +] button.
You will now have some information on the screen: "P0 V0"
To actually be able to change these values, you must push [Vol +] on the remote so the information reads V76. Then pushing on the Channel +/- will change the "P" value.
P1 - 3 are error codes. If there is a problem with the set that can be self-diagnosed, the "V" will report the code. These codes are available in the RCA repair manual.
P4 - 7 control the horizontal size, shift, vertical size and shift.
You may also find a summary leaflet for the service tech clipped somewhere inside the chassis. The procedures for getting into the service mode, as well as the service items of interest will be there.
If you're attempting to adjust color or geometry errors, you'll need the Video Essentials DVD, Laser Disc or some other source of test material.
Have any other queries, Please let me know..
Posted on Oct 12, 2008
You can also try a hard reset: Unplug TV from AC mains and remove all cables from TV. Wait about 30 minutes and replug to AC power and redo the cabling. Switch on the TV and see if it works..
If it fails then switch the tv for 1 hour and follow these steps..
Press OK to begin auto convergence.
2. When the auto convergence is complete, the Red center convergence menu
appears. The cross in the middle of the screen should be yellow. If it is not,
use the arrow buttons to move the red cross to overlap the green cross.
Press OK when adjustments are complete.
3. The Blue center convergence menu appears with a cyan cross in the middle
of the screen. If it is not, use the arrow buttons to move the blue cross
to overlap the green cross. Press OK (the TV tunes to the last selected/
available channel in the channel list).
Posted on Oct 12, 2008
Your convergence settings are moved and they need to be adjusted and if you adjust and still have the problem then its the problem of convergence STK ICS and they need to be replaced.
for adjusting the convergence please click this link this will help you how to adjust the red, blue and green settings in your tv.
for replacing the convergence STKics just click this link
feel free for further assistance.
Posted on Oct 12, 2008
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Posted on Jan 02, 2017
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