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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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#1
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Firtsly many thanks to all of those who participated in this thread.
Originally the picture on this TV was wavy and distorted. I replaced a few marginal electrolityc capacitors and the picture looked almost normal but was always grainy on all channels. After checking I/Cs etc. I decided to remove the tuner (big ****ty job) and checked for opens etc. I did find a connection which looked as if it had a bad contact and resoldered it back properly. Tuner put back and TV turned on and to my disbelief the picture on all channels was still grainy. I was furious and in anger I started to fiddle with any internal controls I could put my finger to. Offcourse nothing improved except that I messed up the colours etc. So the TV had its backpanel replaced and put on the floor for disposal or eventually parts.(at least to get back all those caps I had replaced). Later on that day I thought I will try the "one in a million" possibility; I took the TV inside the house and connected to the house antenna. I spent the next couple of hours contemplating how I was going to take this F... thing apart again to fix up the messed up colours caused by me in anger; why? because the picture on all channels was no longer grainy. Note: in my garage I use a different antenna which has been always been okai but for some reason it did not please this HDTV television. The TV is now fully functional. Cheers AL |
#2
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![]() "alitonto" wrote in message ups.com... Firtsly many thanks to all of those who participated in this thread. Originally the picture on this TV was wavy and distorted. I replaced a few marginal electrolityc capacitors and the picture looked almost normal but was always grainy on all channels. After checking I/Cs etc. I decided to remove the tuner (big ****ty job) and checked for opens etc. I did find a connection which looked as if it had a bad contact and resoldered it back properly. Tuner put back and TV turned on and to my disbelief the picture on all channels was still grainy. I was furious and in anger I started to fiddle with any internal controls I could put my finger to. Offcourse nothing improved except that I messed up the colours etc. So the TV had its backpanel replaced and put on the floor for disposal or eventually parts.(at least to get back all those caps I had replaced). Later on that day I thought I will try the "one in a million" possibility; I took the TV inside the house and connected to the house antenna. I spent the next couple of hours contemplating how I was going to take this F... thing apart again to fix up the messed up colours caused by me in anger; why? because the picture on all channels was no longer grainy. Note: in my garage I use a different antenna which has been always been okai but for some reason it did not please this HDTV television. The TV is now fully functional. Cheers AL AGC overload? Mark Z. |
#3
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![]() "Mark D. Zacharias" wrote Later on that day I thought I will try the "one in a million" possibility; I took the TV inside the house and connected to the house antenna. I spent the next couple of hours contemplating how I was going to take this F... thing apart again to fix up the messed up colours caused by me in anger; why? because the picture on all channels was no longer grainy. Note: in my garage I use a different antenna which has been always been okai but for some reason it did not please this HDTV television. The TV is now fully functional. Cheers AL AGC overload? Mark Z. **** Bog ignorance overload!! Brian Goldsmith. |
#4
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Old Saying !!!
Its easier to take the Water to the Horse than take the Horse to Water. "Brian Goldsmith" wrote in message ... "Mark D. Zacharias" wrote Later on that day I thought I will try the "one in a million" possibility; I took the TV inside the house and connected to the house antenna. I spent the next couple of hours contemplating how I was going to take this F... thing apart again to fix up the messed up colours caused by me in anger; why? because the picture on all channels was no longer grainy. Note: in my garage I use a different antenna which has been always been okai but for some reason it did not please this HDTV television. The TV is now fully functional. Cheers AL AGC overload? Mark Z. **** Bog ignorance overload!! Brian Goldsmith. |
#5
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"alitonto" wrote in message
ups.com... Firtsly many thanks to all of those who participated in this thread. Originally the picture on this TV was wavy and distorted. I replaced a few marginal electrolityc capacitors and the picture looked almost normal but was always grainy on all channels. After checking I/Cs etc. I decided to remove the tuner (big ****ty job) and checked for opens etc. I did find a connection which looked as if it had a bad contact and resoldered it back properly. Tuner put back and TV turned on and to my disbelief the picture on all channels was still grainy. I was furious and in anger I started to fiddle with any internal controls I could put my finger to. Offcourse nothing improved except that I messed up the colours etc. That didn't fix it? How surprising?! So the TV had its backpanel replaced and put on the floor for disposal or eventually parts.(at least to get back all those caps I had replaced). Later on that day I thought I will try the "one in a million" possibility; I took the TV inside the house and connected to the house antenna. I spent the next couple of hours contemplating how I was going to take this F... thing apart again to fix up the messed up colours caused by me in anger; why? because the picture on all channels was no longer grainy. Note: in my garage I use a different antenna which has been always been okai but for some reason it did not please this HDTV television. The TV is now fully functional. Cheers AL I seem to recall people saying crap antenna some time back. Ken |
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