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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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TV BRAND: TOSHIBA
TV MODEL: 43H71 TV TYPE: 43'' REAR VIEW PROJECTION The problem occurred after I wiped the tv screen with a 3M micro-fiber electronics cleaning cloth with a screen cleaning solution (not water) after I turned off the dvd player (attached to the components input of TV). After I turned the TV back on, the screen started to show the reds off focus and skewed on top and bottom of screen, and especially on the corners. I tried using the digital auto focus button and it showed the 'auto focus error' message. I also tried the manual 9 convergence feature, but I couldn't move the red cross-hair downward on the corners (1,3,7,9) to converge with the blue and green. I can only move it horizontally. When I called Toshiba, they told me to try unplugging the TV from the outlet for 30 minutes to reset the controls, which I tried and it didn't work. The problem seemed to affect only the red and not the blue and green. I also tried the convergence adjustment in the service mode, but some of the red lines on top and bottom are skewed and cannot be moved or re-aligned. Does this sounds like a convergence problem or parts problem? I had this TV only 2 years but the warranty already expired. If I were to have this service by an in-home service tech, how much would this type of repair costs. Any help on his matter would be appreciated. |
#2
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Probably coincidence only, nothing to do with the screen cleaning process.
Will need to have the convergence output circuitry repaired, replacing the STK output devices, maybe a few other components. Then a touchup of the dynamic registration. May consider contacting a local servicer to quote you the repair costs. "Ken" wrote in message m... TV BRAND: TOSHIBA TV MODEL: 43H71 TV TYPE: 43'' REAR VIEW PROJECTION The problem occurred after I wiped the tv screen with a 3M micro-fiber electronics cleaning cloth with a screen cleaning solution (not water) after I turned off the dvd player (attached to the components input of TV). After I turned the TV back on, the screen started to show the reds off focus and skewed on top and bottom of screen, and especially on the corners. I tried using the digital auto focus button and it showed the 'auto focus error' message. I also tried the manual 9 convergence feature, but I couldn't move the red cross-hair downward on the corners (1,3,7,9) to converge with the blue and green. I can only move it horizontally. When I called Toshiba, they told me to try unplugging the TV from the outlet for 30 minutes to reset the controls, which I tried and it didn't work. The problem seemed to affect only the red and not the blue and green. I also tried the convergence adjustment in the service mode, but some of the red lines on top and bottom are skewed and cannot be moved or re-aligned. Does this sounds like a convergence problem or parts problem? I had this TV only 2 years but the warranty already expired. If I were to have this service by an in-home service tech, how much would this type of repair costs. Any help on his matter would be appreciated. |
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