IF I UNPLUG TV FOR A LITTLE WHILE IT COMES BACK ON AND AFTER SHORT PERIOD WAVEY LINES COME BACK AND EVENTUALLY SCREAN GOES BLACK AGAIN
Hi!
That's a clear indication that you have a bad power supply in your TV.
If
you know how to DiY...I suggest you open your TV. Locate the power
supply section, it is where the end of the power plug is connected.
Replace all blown or bulge or leaked capacitors with same value. That
will fix your TV problem.
The hardest part is to disassembling your TV cover, cause you will need to pry off the snap in lock at the edge of your TV.
Power supply board should look like this. Examine the capacitors in the board
After repHITACHI PROJECTION TV HAS WAVEY LINES ON IT THEN S - caps%281%29%281%29.jpgs...it should work again.
Things you will need.
1. A plastic flat end screw or any object with flat ends....to fry off the cover
2. Soldering iron.
3. Soldering lead
4. Soldering pump.
5. Flat and Philip Screw
6. Replacement capacitors (of same value with the blown one) that you can buy to any electronics store.
Hope it helps
SOURCE: horizontal wavey lines in projection TV picture
what brand? could be a ground problem or bad crt
SOURCE: 2002 projection Hitachi TV color problem
This model uses two of the STK-392-110 CHIPS for convergence---two versions of this set---one has as you look from the back of the set a circuit board on the far right that has the chips and other parts.
I am going to attach 3 photos of this board--the first two show the board from either side and the third one shows the protection resistors--if you look close at that picture you will see two resistors burnt in the middle.
The other version of this set does not have a removable board like the one in the picture--entire chassis has to come up and replacement is done that way.
If you have the first one like in the photos--3 screws and a number of plugs and it comes right out--three of the plugs for that board are identical and you need to mark them carefully if you remove the board.
The two chips on the far right side (photo attached) can be purchased on EBAY for about 12 dollars--total parts cost if you can solder should be under 30 dollars.
I can tell you the seller there and if you decide to do it you can upgrade the parts by using stk-392-150 chips---same part but longer lasting.
If you want to do it let me know and I will give you a list of what you need---if you have the removable board it is a pretty easy set to fix.
SEE ATTACHED PHOTOS and if you have questions let me know.
If this information has helped you rate this solution as I do this here for free.
SD TECH
SOURCE: Phillips 60" projection screen tv. Wavey lines at
Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.
The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs.
You can find more details and solutions here on Fixya at the following link below. Or click HERE
http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
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