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Answer
Red swish through screen shortly after startup
Problem for Projection Televisions
Generic problem for all Projection Televisions
Samsung 52" rear Projection TV Con...
The Tv is about 5 years old and has developed red drooping lines at times with red lettering.. presume this is a red convergence problem, but I am no expert
If the convergence is controlled by a chip (IC) I am experinced enough to change out the chip whether the chip is a push in or soldered on the main board as long as it does not require test equipment following installation. I do not have a schematic but hopefully there might be one inside the back cover. If this is possible where can I buy the IC from !! not being in the trade
Can anyone help, comments. Thank you
If the convergence is controlled by a chip (IC) I am experinced enough to change out the chip whether the chip is a push in or soldered on the main board as long as it does not require test equipment following installation. I do not have a schematic but hopefully there might be one inside the back cover. If this is possible where can I buy the IC from !! not being in the trade
Can anyone help, comments. Thank you
Comments:
Jan 01, 2008
- In the end I had to get a TV repair man in !!cost me $400.00
He replaced both IC's unfortunaly to no avail had to wait another week while he contacted Samsung and waited on some other parts which I think was a resistor kit ( the resistors thru the normal heat generated had lost their values, I think)
He also cleaned the guns and some other adjustments, picture is fine now
Jan 01, 2008
- I had to get a TV repair man in !!! cost me $400.00He changed out both IC's to no avail !! Had to wait another week while he contacted Samsung and ordered new parts resistor kit
Apparently some resistors had lost their values ( heat problem)
He cleaned the guns and did some other minor adjustments all is fine now picture is great
Clarification Request
Posted by gilmo123 on Aug 17, 2008
I am unable to align the red convergence on my Samsung HCM4215W rear projection HDTV. The factory "perfect picture" has displayed "no sensor data" since the set was repaired in 2004. The set had worked fine for the past 4 years after that repair and just failed suddenly after we returned from a 2 week vacation.
Same Problem
Mar 29, 2009
- same red lines. cant find anyway to fix it and dont have $400- GuestOct 05, 2008
- red curved line at top of screen- samsung rear projection-wont let me do auto focus on main menu?- GuestMar 12, 2008
- I have replaced the 2 driver chips and the resistor associated,I have installed a fan to keep the chips cool, adjusted the convergence,worked great for 2 weeks,now when I turn on the TV,1 line about a foot from the topdroops down,the screen flutters,I turn off and on again,it stops fluttering,but the droop is still there,20 minutes later the droop is gone and stay's off
all night,the next day it's the same process,concern how long this will continue,before something major goes,HITACHI NO HELP AT ALL- PASQ
Jan 01, 2008
- I'm having the same problem on my 52" Samsung rear projection. It is also about 5 yrs old. Does anybody know about how much that costs to have fixed-ballpark figure?- GuestBest Solution
posted on Nov 23, 2007
Replace both STK392-040 convergence IC's with OEM or better
quality = I use Panasonic with great success. They are soldered
in and requires at least PCB removal or perhaps entire chassis.
Please post response if you need more help...................T
quality = I use Panasonic with great success. They are soldered
in and requires at least PCB removal or perhaps entire chassis.
Please post response if you need more help...................T
Yes
No
Solution #2
posted on Sep 12, 2007
Hi.
Depending on how bad the red convergence gone out you may not need any spare parts.
You did not say that you have entered the normal menu & adjusted the convergence.
If you havent adjusted the convergence which you should do a couple of times a year go in to the normal menu go to convergence & set it up.
If it wont set up then you do have a problem & will need new ICs fitted.
Depending on how bad the red convergence gone out you may not need any spare parts.
You did not say that you have entered the normal menu & adjusted the convergence.
If you havent adjusted the convergence which you should do a couple of times a year go in to the normal menu go to convergence & set it up.
If it wont set up then you do have a problem & will need new ICs fitted.
Yes
No
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