I have a Samsung hcm422w. The blue gun is clearly not converging. Autofocus feature works fine on red gun, but doesn't do anything with blue. When I try manual convergence on blue, can't seem to get images to move.
I have the HCM422W same thing happened. I order a new convergence moduel from www.partstore.com . The part number is BP94-00155A, this comes complete, new board IC, resistors only $75.00. This worked for me.
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as i see in your comment.. you have defective convergence correction
amplifier ICs. the RED GREEN and BLUE (RGB) is amplified by the STK
ICs. your RED convergence is not working good in the STK ICs! Replace
the STK ICs a new one to get back the normal colors. Thanks...
Just to clarify, it sounds like what you are saying is that the image
appears to duplicate in either red or blue along the edges of the image
(especially white lettering and probably increasing along the boarder
of the TV). This is resolved by converging your TV. Convergence will
drift normally on large screen projection TV's over time or through
moving them. The Hitachi 57f500a has a feature called "Magic Focus" (pg
36 in your manual) which will auto converge the image. If the auto
converge feature doesn't work, on page 37 in your manual, it explains
how to converge manually. If you do not have the manual, I have the
image of the pages below. If for some reason this doesn't work, please
provide additional info and detailed prior to rating the help.
Perfect focus in these sets are dependant on factory or service mode calabration. once the unit is calabrated then those setings are stored to be the basis for perfect focus. The fact that you can manual converge the set is a good thing. probaly nothing phycially wrong with your set. However. what is needed is to get a qualified tech to look at your set and to calabrate the convergence.
you must enter the service mode and align your convergence and save it to the epromm also activate the auto focus to activate the sensors , power on /mute-1-8-2- / press enter to save and before you exit activate the focus key on the remote ,very inportant to do the last step./g