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tompeters
Joined: 31 Mar 2009
Posts: 9
Location: ohio
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 Posted: Tue Mar 01, 2011 12:53 pm Post subject: kp-41t65 Video shadow |
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got this for free and have a shadow problem. tried to adj. convergence.should all the lines be able to be adj into the same cross?blue and green will move and line up but red does not move at all, is there more i need to know about adjusting these lines? thanks, tom
kp-41t65 chassis ra 2a |
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kuhurdler
Joined: 28 Dec 2006
Posts: 2879
Location: Overland Park, KS
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| Posted: Tue Mar 01, 2011 3:25 pm Post subject: |
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| That's a convergence problem. You'll have to replace the convergence ICs |
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murfy888
Joined: 02 Mar 2011
Posts: 6
Location: philippines
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| Posted: Wed Mar 02, 2011 1:03 am Post subject: |
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| It is indeed a convergence problem and should be replaced. Just a reminder don't do it if you are not sure you can do it. Call a service technician instead. |
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tompeters
Joined: 31 Mar 2009
Posts: 9
Location: ohio
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| Posted: Fri Mar 04, 2011 5:52 pm Post subject: kp41t65 |
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| looks like someone replaced the ic before.both of them ,it looks like they replaced some resistors as well, is there a schematic to tell me what they should have been originaly, they are not easily read. the numbers next to these are r 963 r962 r957 r958 r998 r961 they are discolored so i cant make out their colors. i ordered the ic from mcm, should be here by mon. kp41t65 ra 2a. also is there a way to identify cheap ic these have no name just the number. thanks for any reply tom |
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JTS1957
Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away
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tompeters
Joined: 31 Mar 2009
Posts: 9
Location: ohio
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| Posted: Sun Mar 13, 2011 4:58 pm Post subject: kp-41t65 |
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| finally got the parts ,soldered them in. now i cant get the blue to move. any suggestions thanks tom |
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kuhurdler
Joined: 28 Dec 2006
Posts: 2879
Location: Overland Park, KS
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| Posted: Sun Mar 13, 2011 8:30 pm Post subject: |
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| double check for solder splashes around the chip. |
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tompeters
Joined: 31 Mar 2009
Posts: 9
Location: ohio
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| Posted: Mon Mar 14, 2011 11:56 am Post subject: kp-41t65 |
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| checked my solder job, resoldered 1 spot . now i can move the blue but not all the way . also the screen looks curved top and bottom, still have shadow. any adjustments elsewhere? |
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JTS1957
Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away
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| Posted: Mon Mar 14, 2011 11:58 am Post subject: |
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| Bias resistor(s)? |
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tompeters
Joined: 31 Mar 2009
Posts: 9
Location: ohio
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| Posted: Wed Mar 16, 2011 8:31 am Post subject: kp-41t65 |
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| well, i dont understand bias resistor,or how to identify one. could you elaborate for me? |
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