Question about Akai PT4799HD Rear Projection Television

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"check factor data" using self focus

Check factory data message appears when the self focus feature is used. i had blue lines earlier, so entered mute 183, everything looked fine, so did not do any changes, did a self focus in this mode, process is done, then screen goes white.  upon exit, problem is gone, picture looks great, but check factory data message when self focus attempted. i can with out the self focus feature, but am wondering if this is an indication the ic convergence board needs to be replaced,  i tried to reset by unplugging the tv without success. is there another way to reset?

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Re: "check factor data" using self focus


Not at all familiar with your tv but this sort of message comes up if you have altered eeprom settings while in engineers mode.
To put it right you will need the work shop manual to know how to reset the settings.

Maybe A tech on these forums can help you out.


Posted on Jan 08, 2008

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Convergence settings

Key Functions
7,8,9 = select R, G or B
+100,0,PRE-CH = mute R, G or B
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2 = restore factory
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U/D/L/R = move cursor
SELF FOCUS = saves the convergence adjustment - do before exiting

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