Question about Samsung PCH521R 52" Rear Projection Television
There is no other adjustments than convergence. It is used to rectify the spreading of colours and not for pincushion. If you see pincusion effect with1080i only, it should be its internal card problem. Normally this type of fault occurs to video card, and should be replaced as card basis. No repairable parts inside it or cannot be repaire by normal soldering methods. As far as all other resolutions are OK, fault occurs only for this resolution indicates and confirms it. If so, the work should be done by a well experience service personal, as it is a very very skilled work, and after it, the technician have to enter its servcie mode and have to make several adjustments; all of them are critical. He should gave a good qquality pattern genereator also, besideds all other service tools.
If you are aware in electronics and have experience, you can do this. Without these, never attempt to rectify this fault by yoursef. It will go worse. OK.
Posted on Mar 23, 2011
The pincushion can be adjusted from the service menu , but this is a general setting, it will apply on all inputs. If you have problem just on the DTV then the deflection circuits are not strong enough to apply the correction when high frequency is used - you will have to check them and identify and replace the aged components.
Where are they and how to test them can be found in the service manual, which you can get from here
Posted on Mar 15, 2011
Your unit is capable of receiving DTV 480p and 1080i format and will automatically configured by the system when switching to DTV mode. Make sure that the cable connected to y,Pb, and Pr video output of set-top box are properly attached to your unit. Double check the connections and your cable wires. There is no such pincushion adjustment in your set-up menu.
Hope I helped you.
Have a nice day!
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Posted on Mar 15, 2011
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Posted on Jan 02, 2017
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