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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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Intermittent static when viewing cable, cable ready problem?
I have an intermittent static problem on one tv in my house. When
watching cable short and annoying blasts of video and audio static occur repeatedly until I give trying to watch. Or ometimes it only happens once a day and will be days before it happens again. Two diffent cable tech say it is the tv. The other tv in the house does not have this problem. I finally switched our second tv with the one that has the problem and the static has not happened since. The tv with the problem is a 31" Toshiba. When playing dvd's (using either the svid or composite video input) the image is perfect the static never intrudes. If the problem was in that line (wiring or connections) then I believe the problem would occur on whatever tv was in use in that room. I am left to believe that the problem must be in the cable ready portion of the tv. Anyone know any common problems or thing I should check on the cable ready board?? I can check and replace electronics, I work on pinball machines. But I have schematics and know the common pinball aliments. Thanks, Dug |
#2
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Intermittent static when viewing cable, cable ready problem?
rhino:
Frankly.... if the diagnosis points to the tuner module in the television, then it would be easier and cheaper for you to just use a VCR to do the tuning. Any VCR built in the last 10-13 years will be able to tune all of the cable tv channels... and if you use a STEREO HI FI VCR and feed the television via the composite video/stereo audio jacks into the A/V input of the television the result will be very good. electricitym |
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Intermittent static when viewing cable, cable ready problem?
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Intermittent static when viewing cable, cable ready problem?
Thanks for the quick responses.
I don't know if tuning with in VCR would help, I have digital cable and am only tuning in one channel. I also removed the digital box and experienced the problem intermittently as well. |
#5
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Intermittent static when viewing cable, cable ready problem?
wrote in message oups.com... Thanks for the quick responses. I don't know if tuning with in VCR would help, I have digital cable and am only tuning in one channel. I also removed the digital box and experienced the problem intermittently as well. If that is the case, you may also lose some digital channels if you use the VCR instead. Depends also on the bale company and what signals you get. |
#6
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Intermittent static when viewing cable, cable ready problem?
rhino:
You can tune the "one channel" with the VCR's tuner.... just like you did with the television's tuner. If the problem still persists then your wiring is suspect. Try what I suggested before you so readily discount it as a valid solution. Post the results electricitym |
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Intermittent static when viewing cable, cable ready problem?
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#8
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Intermittent static when viewing cable, cable ready problem?
Joseph:
yes... it has other inputs and the VCR method will work fine. excerpt from OP: "The tv with the problem is a 31" Toshiba. When playing dvd's (using either the svid or composite video input) the image is perfect the static never intrudes." electricitym |
#9
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Intermittent static when viewing cable, cable ready problem?
wrote in message oups.com... I have an intermittent static problem on one tv in my house. When watching cable short and annoying blasts of video and audio static occur repeatedly until I give trying to watch. Or ometimes it only happens once a day and will be days before it happens again. Two diffent cable tech say it is the tv. The other tv in the house does not have this problem. I finally switched our second tv with the one that has the problem and the static has not happened since. The tv with the problem is a 31" Toshiba. When playing dvd's (using either the svid or composite video input) the image is perfect the static never intrudes. If the problem was in that line (wiring or connections) then I believe the problem would occur on whatever tv was in use in that room. I am left to believe that the problem must be in the cable ready portion of the tv. Anyone know any common problems or thing I should check on the cable ready board?? I can check and replace electronics, I work on pinball machines. But I have schematics and know the common pinball aliments. Thanks, Dug My guess would be connections as others have posted. Whether at the splitter or in the set. Try testing the set at a neighbors house. If it is the set and you want to try your hand at fixing it then get a bright light and a magnifying glass and look for cracks or dark spots in the solder connections at the tuner. Usually it will be a part that runs warm and is moving back and forth when the set is on or off or maybe a single sided board without enough solder. Just heat up the connection and run some solder into any connection that looks suspicious. Also check for discolored connections. They could be the cause too but no guarantee. Please make sure to unplug the TV not just turn it off just to be safe... Another idea would be to post this on sci.electronics.repair and make sure to leave the full model number...There are some excellent techs over there and you might just have a well known bug with an easy fix.....good luck... |
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Intermittent static when viewing cable, cable ready problem?
"Ross Mac" wrote in message . .. wrote in message oups.com... I have an intermittent static problem on one tv in my house. When watching cable short and annoying blasts of video and audio static occur repeatedly until I give trying to watch. Or ometimes it only happens once a day and will be days before it happens again. Two diffent cable tech say it is the tv. The other tv in the house does not have this problem. I finally switched our second tv with the one that has the problem and the static has not happened since. The tv with the problem is a 31" Toshiba. When playing dvd's (using either the svid or composite video input) the image is perfect the static never intrudes. If the problem was in that line (wiring or connections) then I believe the problem would occur on whatever tv was in use in that room. I am left to believe that the problem must be in the cable ready portion of the tv. Anyone know any common problems or thing I should check on the cable ready board?? I can check and replace electronics, I work on pinball machines. But I have schematics and know the common pinball aliments. Thanks, Dug My guess would be connections as others have posted. Whether at the splitter or in the set. Try testing the set at a neighbors house. If it is the set and you want to try your hand at fixing it then get a bright light and a magnifying glass and look for cracks or dark spots in the solder connections at the tuner. Usually it will be a part that runs warm and is moving back and forth when the set is on or off or maybe a single sided board without enough solder. Just heat up the connection and run some solder into any connection that looks suspicious. Also check for discolored connections. They could be the cause too but no guarantee. Please make sure to unplug the TV not just turn it off just to be safe... Another idea would be to post this on sci.electronics.repair and make sure to leave the full model number...There are some excellent techs over there and you might just have a well known bug with an easy fix.....good luck... Woops...you already posted it there...my mistake... |
#11
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Intermittent static when viewing cable, cable ready problem?
"Ross Mac" wrote in
: wrote in message oups.com... I have an intermittent static problem on one tv in my house. When watching cable short and annoying blasts of video and audio static occur repeatedly until I give trying to watch. Or ometimes it only happens once a day and will be days before it happens again. Two diffent cable tech say it is the tv. The other tv in the house does not have this problem. I finally switched our second tv with the one that has the problem and the static has not happened since. The tv with the problem is a 31" Toshiba. When playing dvd's (using either the svid or composite video input) the image is perfect the static never intrudes. If the problem was in that line (wiring or connections) then I believe the problem would occur on whatever tv was in use in that room. I am left to believe that the problem must be in the cable ready portion of the tv. Anyone know any common problems or thing I should check on the cable ready board?? I can check and replace electronics, I work on pinball machines. But I have schematics and know the common pinball aliments. Thanks, Dug My guess would be connections as others have posted. Whether at the splitter or in the set. Try testing the set at a neighbors house. If it is the set and you want to try your hand at fixing it then get a bright light and a magnifying glass and look for cracks or dark spots in the solder connections at the tuner. Usually it will be a part that runs warm and is moving back and forth when the set is on or off or maybe a single sided board without enough solder. Just heat up the connection and run some solder into any connection that looks suspicious. Also check for discolored connections. They could be the cause too but no guarantee. Please make sure to unplug the TV not just turn it off just to be safe... Another idea would be to post this on sci.electronics.repair and make sure to leave the full model number...There are some excellent techs over there and you might just have a well known bug with an easy fix.....good luck... Note that CRT TVs have large capacitors with large voltages that hold their charge for a long time. An unplugged TV is not necessarily safe... Gino -- Gene E. Bloch (Gino) letters617blochg3251 replace the numbers by "at" and "dotcom" |
#12
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Intermittent static when viewing cable, cable ready problem?
After you awapped tvs and the problem did not reoccur, did you go back
to the original location for each set, or did you leave them swapped? That is crucial to know before we make further prognoses. H. R. Hofmann |
#13
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Intermittent static when viewing cable, cable ready problem?
After you swapped tvs and the problem did not reoccur, did you go back
to the original location for each set, or did you leave them swapped? That is crucial to know before we make further prognoses. H. R. Hofmann |
#14
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Intermittent static when viewing cable, cable ready problem?
After you swapped tvs and the problem did not reoccur, did you go back
to the original location for each set, or did you leave them swapped? That is crucial to know before we make further prognoses. H. R. Hofmann |
#15
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Intermittent static when viewing cable, cable ready problem?
After you swapped tvs and the problem did not reoccur, did you go back
to the original location for each set, or did you leave them swapped? That is crucial to know before we make further prognoses. H. R. Hofmann |
#16
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Intermittent static when viewing cable, cable ready problem?
good suggestion
good suggestion good suggestion good suggestion |
#17
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Intermittent static when viewing cable, cable ready problem?
"Gene E. Bloch" wrote in message ... "Ross Mac" wrote in : wrote in message oups.com... I have an intermittent static problem on one tv in my house. When watching cable short and annoying blasts of video and audio static occur repeatedly until I give trying to watch. Or ometimes it only happens once a day and will be days before it happens again. Two diffent cable tech say it is the tv. The other tv in the house does not have this problem. I finally switched our second tv with the one that has the problem and the static has not happened since. The tv with the problem is a 31" Toshiba. When playing dvd's (using either the svid or composite video input) the image is perfect the static never intrudes. If the problem was in that line (wiring or connections) then I believe the problem would occur on whatever tv was in use in that room. I am left to believe that the problem must be in the cable ready portion of the tv. Anyone know any common problems or thing I should check on the cable ready board?? I can check and replace electronics, I work on pinball machines. But I have schematics and know the common pinball aliments. Thanks, Dug My guess would be connections as others have posted. Whether at the splitter or in the set. Try testing the set at a neighbors house. If it is the set and you want to try your hand at fixing it then get a bright light and a magnifying glass and look for cracks or dark spots in the solder connections at the tuner. Usually it will be a part that runs warm and is moving back and forth when the set is on or off or maybe a single sided board without enough solder. Just heat up the connection and run some solder into any connection that looks suspicious. Also check for discolored connections. They could be the cause too but no guarantee. Please make sure to unplug the TV not just turn it off just to be safe... Another idea would be to post this on sci.electronics.repair and make sure to leave the full model number...There are some excellent techs over there and you might just have a well known bug with an easy fix.....good luck... Note that CRT TVs have large capacitors with large voltages that hold their charge for a long time. An unplugged TV is not necessarily safe... Gino -- Gene E. Bloch (Gino) letters617blochg3251 replace the numbers by "at" and "dotcom" This is true and those experienced in the electronic field would know this....The OP indicated that he knew something about electrical repair so it was not mentioned.... |
#18
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Intermittent static when viewing cable, cable ready problem?
wrote in message ups.com... After you swapped tvs and the problem did not reoccur, did you go back to the original location for each set, or did you leave them swapped? That is crucial to know before we make further prognoses. H. R. Hofmann Is there an echo in here?? |
#19
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Intermittent static when viewing cable, cable ready problem?
On 10/11/2005, Ross Mac managed to type:
"Gene E. Bloch" wrote in message ... "Ross Mac" wrote in : wrote in message oups.com... I have an intermittent static problem on one tv in my house. When watching cable short and annoying blasts of video and audio static occur repeatedly until I give trying to watch. Or ometimes it only happens once a day and will be days before it happens again. Two diffent cable tech say it is the tv. The other tv in the house does not have this problem. I finally switched our second tv with the one that has the problem and the static has not happened since. The tv with the problem is a 31" Toshiba. When playing dvd's (using either the svid or composite video input) the image is perfect the static never intrudes. If the problem was in that line (wiring or connections) then I believe the problem would occur on whatever tv was in use in that room. I am left to believe that the problem must be in the cable ready portion of the tv. Anyone know any common problems or thing I should check on the cable ready board?? I can check and replace electronics, I work on pinball machines. But I have schematics and know the common pinball aliments. Thanks, Dug My guess would be connections as others have posted. Whether at the splitter or in the set. Try testing the set at a neighbors house. If it is the set and you want to try your hand at fixing it then get a bright light and a magnifying glass and look for cracks or dark spots in the solder connections at the tuner. Usually it will be a part that runs warm and is moving back and forth when the set is on or off or maybe a single sided board without enough solder. Just heat up the connection and run some solder into any connection that looks suspicious. Also check for discolored connections. They could be the cause too but no guarantee. Please make sure to unplug the TV not just turn it off just to be safe... Another idea would be to post this on sci.electronics.repair and make sure to leave the full model number...There are some excellent techs over there and you might just have a well known bug with an easy fix.....good luck... Note that CRT TVs have large capacitors with large voltages that hold their charge for a long time. An unplugged TV is not necessarily safe... Gino -- Gene E. Bloch (Gino) letters617blochg3251 replace the numbers by "at" and "dotcom" This is true and those experienced in the electronic field would know this....The OP indicated that he knew something about electrical repair so it was not mentioned.... The OP might not be the only one reading this thread, so I felt it wouldn't hurt to mention it. I have had a couple of nasty shocks from unplugged TVs, but I did survive - perhaps Gino -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") |
#20
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Intermittent static when viewing cable, cable ready problem?
"Gene E. Bloch" wrote in message ... On 10/11/2005, Ross Mac managed to type: "Gene E. Bloch" wrote in message ... "Ross Mac" wrote in : wrote in message oups.com... I have an intermittent static problem on one tv in my house. When watching cable short and annoying blasts of video and audio static occur repeatedly until I give trying to watch. Or ometimes it only happens once a day and will be days before it happens again. Two diffent cable tech say it is the tv. The other tv in the house does not have this problem. I finally switched our second tv with the one that has the problem and the static has not happened since. The tv with the problem is a 31" Toshiba. When playing dvd's (using either the svid or composite video input) the image is perfect the static never intrudes. If the problem was in that line (wiring or connections) then I believe the problem would occur on whatever tv was in use in that room. I am left to believe that the problem must be in the cable ready portion of the tv. Anyone know any common problems or thing I should check on the cable ready board?? I can check and replace electronics, I work on pinball machines. But I have schematics and know the common pinball aliments. Thanks, Dug My guess would be connections as others have posted. Whether at the splitter or in the set. Try testing the set at a neighbors house. If it is the set and you want to try your hand at fixing it then get a bright light and a magnifying glass and look for cracks or dark spots in the solder connections at the tuner. Usually it will be a part that runs warm and is moving back and forth when the set is on or off or maybe a single sided board without enough solder. Just heat up the connection and run some solder into any connection that looks suspicious. Also check for discolored connections. They could be the cause too but no guarantee. Please make sure to unplug the TV not just turn it off just to be safe... Another idea would be to post this on sci.electronics.repair and make sure to leave the full model number...There are some excellent techs over there and you might just have a well known bug with an easy fix.....good luck... Note that CRT TVs have large capacitors with large voltages that hold their charge for a long time. An unplugged TV is not necessarily safe... Gino -- Gene E. Bloch (Gino) letters617blochg3251 replace the numbers by "at" and "dotcom" This is true and those experienced in the electronic field would know this....The OP indicated that he knew something about electrical repair so it was not mentioned.... The OP might not be the only one reading this thread, so I felt it wouldn't hurt to mention it. I have had a couple of nasty shocks from unplugged TVs, but I did survive - perhaps Gino -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") Damm that hurts doesn't it!.... |
#21
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Intermittent static when viewing cable, cable ready problem?
I swapped in a different tv. I did not carry the 31" downstairs. The
new set did not have any static at any time. I tried what electricitym man suggested: reconnecting the old tv and using the vcr tuner. And experienced 2+ days of no static whatsoever. But the static has returned. To be very clear the connection is wall-digital box-vcr (vcr on, vcr on vcr not tv, set to channel 4)-tv channel 4. And I am using coaxial cable all the way trough. I believe electricitym had intended that I use the composite output from the vcr and bypass the tv's coax/tuner completely. I will do that as a last resort but the tv is a bit older and only has coax and s-video/composite inputs. I will next try to open the unit and inspect grounds and soder joints. I won't be able to get to it until sunday, thanks to everyone for their input. DC wrote: After you swapped tvs and the problem did not reoccur, did you go back to the original location for each set, or did you leave them swapped? That is crucial to know before we make further prognoses. H. R. Hofmann |
#22
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Intermittent static when viewing cable, cable ready problem?
if you know what the tuner looks like, and you are not an expert,
don't open the tuner...just squeeze the cover of the tuner a few times and see if that fixes the problem for a few weeks,,, if it does then you know you need to get a tech to open the tuner and clean the ground contacts to the cover... Mark |
#23
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Intermittent static when viewing cable, cable ready problem?
On 10/13/2005, Ross Mac managed to type:
"Gene E. Bloch" wrote in message ... On 10/11/2005, Ross Mac managed to type: "Gene E. Bloch" wrote in message ... "Ross Mac" wrote in : wrote in message oups.com... I have an intermittent static problem on one tv in my house. When watching cable short and annoying blasts of video and audio static occur repeatedly until I give trying to watch. Or ometimes it only happens once a day and will be days before it happens again. Two diffent cable tech say it is the tv. The other tv in the house does not have this problem. I finally switched our second tv with the one that has the problem and the static has not happened since. The tv with the problem is a 31" Toshiba. When playing dvd's (using either the svid or composite video input) the image is perfect the static never intrudes. If the problem was in that line (wiring or connections) then I believe the problem would occur on whatever tv was in use in that room. I am left to believe that the problem must be in the cable ready portion of the tv. Anyone know any common problems or thing I should check on the cable ready board?? I can check and replace electronics, I work on pinball machines. But I have schematics and know the common pinball aliments. Thanks, Dug My guess would be connections as others have posted. Whether at the splitter or in the set. Try testing the set at a neighbors house. If it is the set and you want to try your hand at fixing it then get a bright light and a magnifying glass and look for cracks or dark spots in the solder connections at the tuner. Usually it will be a part that runs warm and is moving back and forth when the set is on or off or maybe a single sided board without enough solder. Just heat up the connection and run some solder into any connection that looks suspicious. Also check for discolored connections. They could be the cause too but no guarantee. Please make sure to unplug the TV not just turn it off just to be safe... Another idea would be to post this on sci.electronics.repair and make sure to leave the full model number...There are some excellent techs over there and you might just have a well known bug with an easy fix.....good luck... Note that CRT TVs have large capacitors with large voltages that hold their charge for a long time. An unplugged TV is not necessarily safe... Gino -- Gene E. Bloch (Gino) letters617blochg3251 replace the numbers by "at" and "dotcom" This is true and those experienced in the electronic field would know this....The OP indicated that he knew something about electrical repair so it was not mentioned.... The OP might not be the only one reading this thread, so I felt it wouldn't hurt to mention it. I have had a couple of nasty shocks from unplugged TVs, but I did survive - perhaps Gino -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") Damm that hurts doesn't it!.... It is definitely not fun. I've also gotten too close to spark plug wires. That should be avoided too. I guess if I had continued to make a habit of it, my nickname would be Sparky instead of Gino :-) Sp...I mean Gino -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") |
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