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To enter into the convergence service of your sony, follow the steps below;
Press "Menu" on the remote control. Use the up- or down-arrow button to move the cursor to "Setup" and then press "Return."
Use the up or down arrow to move the cursor to "Convergence" and press
"Return." This will bring up the convergence-adjustment screen.
Press the up or down arrow to move the cursor to the line you want to
adjust (either vertical or horizontal for red and blue) and press
Press the up or down arrow again to move that line until it converges with the center green line and press "Return."
Repeat to adjust the other lines until all three lines converge and are seen as a white cross.
Press "Menu" to exit the convergence menu and return to the original screen.
You can as well follow these steps;
Press the "Power" button to turn your TV on.
Wait at least 30 minutes before you adjust the convergence in your
television. This allows your TV ample time to warm up before you make
Turn your TV to a cable channel or to an antenna channel with a picture
that you can see. A music channel with a static shot of music notes
isn't the kind of picture you need. Instead, look for a picture like
what you would see on a movie, sitcom or drama.
Press the "Flash Focus" button located in the front panel on your TV.
You may need to open a hidden compartment on the front of your TV to
access this button. The convergence will repair itself automatically
after you hit this button. It may take several minutes.
Any of the two processes are detailed steps on how to enter your convergence service.
You would have to go into the service menu to do fine convergence adjustments - The best way to approach this is to get a service manual - available online $ at servicemanuals.net - Also double check all the 3.9 ohm resistors near the convergence IC's
Replace the convergence IC's - P/N STK192-110 with part STK192-150 or 180. Then you can go back in and make the detailed convergence settings and get your picture back in alignement. Also check the flame-resistant resistors around the ICs to make sure that none of them have opened up.
The colors weren't lining up correctly on my HC-P4752W which is only about 30 months old. I did a little bit of research and got ahold of the people at http://servicemanuals.vstore.ca/ They recommended replacing the IC's as well as the IC resistors. I purchased the replacement parts from their site and made the repairs myself. I should mention that I didn't have any previous soldering experience. The repair was easy and a complete success. You may find replacement parts elsewhere for slightly cheaper but what you won't find is the prompt and detailed customer service that they provide. They gave me there # and said to call if I had any questions before or during repair. I took advantage of their services and got answers every time I called.
It sounds like a convergence issue and possibly the amps themselves going out.. Cycling the unit off/on has me suspecting convergence amps first and possibly poor solder connections in the vert or convergence circuit.
However, it could be one other thing, Vertical misadjusted. There is a methid for checking that in the service menu and I'll get to that in a second.
The symptoms correcting themselves when you cycle on/off is very significant. I would first check for poor solder connections on the vert IC, and conv. amps. Then test the convergence amps themselves.
If all else fails check the vertical adjustment. To adjust vertical enter service alignment mode by using 06-25-96 status, after
entering service alignment mode it will be necessary to use the A/V button to get back to A/V4. When in the service alignment mode cursor down to GDE SAM. Cursor right and then cursor down to Geometry. Cursor right and then cursor down to VER. AMPL. then while watching the DVD in A/V4 cursor right or left to adjust the vertical amplitude until the white lines just disappear. Turn the set off to save the change.
NOTE: Convergence may need to be touched up slightly after this adjustment has been made.
Footnote: mnyce, this is one repair that I would not attempt unless you are fairly skilled at trace testing and knowing what to look for in a given circuit. As always, there are voltages in these areas that could harm you or further damage the unit. I would suggest contacting an honest qualified repair facility and explain your problem to them. Most will have no problem telling you exactly what I have here..