Below are two of the most common problems encountered with projection TV sets.
Problem #1 - CONVERGENCE PROBLEM
Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.
This is a very common failure on Projection TV sets and a fairly simple DIY fix.
Common Symptoms include....
Here are some photos of convergence problems.
Here is a quick test....
Using your original remote go-to the settings menu then goto the convergence section.
Try to adjust the red and then the blue convergence.
You should be able to move RED and BLUE in all directions - up, down, left, and right.
If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.
Note: If you TV has as flash focus or magic focus button onlyes it bows at the top with coloured lines. i dont - 47a7bc4.pnging the button. If it fails to fix the convergence your need to fix it. See below for a solution
CONVERGENCE SOLUTION
You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you know what you are doing. If you have never done this before we would advise calling a shop or if you want to do it yourself get a complete kit with instructions and support from TvRepairKits.com
Their kits include a step by step instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.
Problem #2 CRT Fluid is Cloudy
Projection tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around video.
Pic of a set thayes it bows at the top with coloured lines. i dont - 7c190d8.jpg fluid changed. Notice how dull the colors are and how white the screen looks. The screen may also look red, orange, dull, etc.
BEFOREyes it bows at the top with coloured lines. i dont - a798d23.jpg>
Set after fluid change. Notice how bright the colors are now. Everthing looks crisp and sharp again.
AFTER
Solution #2 - CRT FLUID FIX
What you will need to do is replace the coolant and clean the crt. You can get a repair kit from TvRepairKits.com . It includes replacement coolant,step by step instructions, support, etc.
SOURCE: D52W26 Convergence board
Yes the D52W20 and the D52w26 are both ITC222 chassis they are exactly the same
SOURCE: Convergence
No menu option is a clue to your problem. No menu option for convergence is due to the Micro not seeing a active convergence module in the unit. This is a post check, when the unit is turned on, and on some units, only done at AC power up.
With that in mind, you need to check your (PW=power) pcb for the conv module. This is easy to find, but on most RCA is located on the plastic panel that is in front of the CRTs. On this model, you should see PW conv PCB on left and Conv PCB on right. Top left corner is a plug with two wires, BP611, (i think) which should have like 300v DC. If you dont have the B+ go to the Primary power supply. More then likely you will have it.
If your 300v is there, order the PW conv module. NOTE: most of these modules are rebuild only and cost about 70.00 to rebuild at PTS. Other wise, you can trouble shoot at board level.
ONLY WORK ON THIS IS YOU HAVE CAN SAFELY USE A METER, AND HAVE SOME ELECTRONICAL SKILLS. NOT FOR BEGGINERS!
Scott
JTV repair.
SOURCE: Autoconvergence option is GONE!
i see this so often i have wrote a tip and tricks instructions. see fl231 problem under tips and ticks in my profile. if u can solder it a simple inexpensive repair
SOURCE: Divergence not working on RCA HDTV monitor 52" D52W26
sound like the common fl231 fuse problem. consult the fl231 problem article under the tips and tricks section. this is probaly the simplest most inpensive repair on this set
SOURCE: 3d rainbow pictures..with colorful waves..and no convergence menu to fix it.
You will need to replace the FL231, DL231 and CL230 you can get the parts with free instructions with pictures at the following link. The parts are all listed under the RCA parts category total cost is about 11.00 http://servicemanuals.vstore.ca/
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