Can't get red, blue, and green to align in setup menu. Screen has pincushion from top and bottom and also seems to be a triple image. Sounds like either need to replace stk-392-040's or sub assembly board or both. Would like to narrow down exactly what i need to order and any recommendations of where to get parts would be appreciated as well
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Normally on the RCA rear projection TV's you would bring up your menu and choose the Setup menu, then press OK on the remote. That menu would then have Convergence as a choice. Once that was chosen the next menu would give you the choice of either letting the TV run it's own Autoconvergence program, or you would select either Red or Blue convergence.
Choosing Red Convergence would bring up a Yellow cross-hair in the middle of the screen. If the Convergence was not correct you would see separate Green and Red cross-hairs. Once they were perfectly aligned you would again see one Yellow cross-hair.
Choosing Blue Convergence would bring up a Blue cross-hair in the center of the screen. If the alignment was out you would see 2 Blue cross-hairs. Using the Up and Down and Left and Right cursor keys you would adjust the alignment until a single solid Blue cross-hair was in the center of the screen.
Here's all I find regarding bad convergence from the techrepairCD: RCA ~ITC222 D52W20~Convergence bad~~~ITC222~Replace leaky DL032 on deflection board~~~~~~
RCA~D52W20Y ATC221~Convergence goes out/bowed after on for a few minutes~~~ATC221~Problem may be on the deflection board. Was unable to pinpoint where in this case.~~~~~~
RCA~D52W20BYX1 ITC222~Convergence way off after replacing small signal board~EEPROMS were transferred over to new board~~~IK210 was defective..transfer the new EEPROM back over.~Remember on these sets*when replacing the SSB* if there is a small P on corner of screen*hold volume on remote for 8 seconds after it reaches minimum.~~~~~
RCA~D52W20BYX1 ITC222~Can not align blue convergence* bottom really bowed* possibly either color after replacing SSB.(Or no auto convergence.~(Service menu: turn power off for 30 seconds* press vol dn and ch dn* simultaneously for 8 seconds* set turns on with service menu options)~~ITC222~In service menu* select convergence. If sensor calibration was performed when convergence was too far off* it will not alighn.~Get crosshatch with straight lines* perform sensor calibration* then attempt convergence alignment again. Be sure to store settings* then do sensor calibration again.~You must get a green flash of the screen after sensor cal and a check in the box. RED flash indicated convergence settings are too far off~~~~
RCA~D52W20BYX1 ITC222~no convergence correction~~~ITC222~LP650 (259271) DP670 (259246) & RP632 (259564) 4.7 3W on convergence power supply board~~~~~~
Image at top and bottom edge very distorted.
Reheat all the surface mount solder points on the Small Signal Board. Then realign the set including convergence menu. To enter service mode: power off the set for 10 sec, then hold down Vol- and Ch- buttons for 10 sec. See this link: Alignment Procedure (pdf)
Also download the Alignment procedure pdf file. Hope this will help you. Please let me know if the information was of any help to you or you need further assistance.
It is called Convergence. You have three CRTs. Red, blue, Green. When they are not aligned, you will see the individual colors. See if you can do some alignment in the users menu. Look for Converge or Convergence in the menu. Either under video or setup.
Each color (red,green & blue) has an amplifier IC (STK-).
When there is a convergence issue,the first step is change both
IC's for reliability. Then check for open fuses devices,usually
pico fuses.Then re-check convergence alignment.......T.
The set has 3 IC's(one for each color)strictly dedicated for the aligment of each color,if one them does not align is because is going bad or is already bad becuase picture can not be adjusted,the IC's can be identify because they are mounted on a heat sink and have the markings STK--- ---,they are all the same and need to be replaced with an exact replacement.If you are familiar with tv service you can replace them,sometimes the new ones need to be aligned from the service menu,you will need the service manual,soldering and unsoldering will be involved,If you are not too familiar be safe and seek the assistance of a servicer.