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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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I just had a serviceman look at my TV. He informed me (and showed be
fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
#2
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Mark Pfeifer:
5 years seems a little too soon to be replacing your big screen Mitz. I would suggest that your obtain another repair cost estimate.... with an specific estimated repair cost dollar amount so you can make an intelligent repair decision. You can't do this on the phone either...... a real tech needs to actually look at the television and do some preliminary troubleshooting and visual inspection in order to come up with a half-way accurate repair cost estimate. -- Best Regards, Daniel Sofie Electronics Supply & Repair - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
#3
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Mark Pfeifer:
5 years seems a little too soon to be replacing your big screen Mitz. I would suggest that your obtain another repair cost estimate.... with an specific estimated repair cost dollar amount so you can make an intelligent repair decision. You can't do this on the phone either...... a real tech needs to actually look at the television and do some preliminary troubleshooting and visual inspection in order to come up with a half-way accurate repair cost estimate. -- Best Regards, Daniel Sofie Electronics Supply & Repair - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
#4
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Well he showed you the Fluids...!!!
Call another Guy in so he can tell you the same thing. kip -- "Watch the return E-Mail addy its false" "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
#5
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Probably Identical to the one I looked at last month. I have repaired these
without replacing the tubes, but it's still an expensive repair, since the tubes must be removed from the set and disassembled (which Mitsubishi does not recommend, but hey, only other fix is replace the tubes, with no guarantee THEY won't leak in a few years). |
#6
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Probably Identical to the one I looked at last month. I have repaired these
without replacing the tubes, but it's still an expensive repair, since the tubes must be removed from the set and disassembled (which Mitsubishi does not recommend, but hey, only other fix is replace the tubes, with no guarantee THEY won't leak in a few years). |
#7
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"john" wrote in message ...
Well he showed you the Fluids...!!! Call another Guy in so he can tell you the same thing. kip -- "Watch the return E-Mail addy its false" "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark I would be very curious where there are fluids in a picture tube. Last time I checked, they were under a vacuum. If there is leakage of fluid, is it from around the safety glass on the front of the tube?? otherwise, someone has spilled coke or a bloody mary into the set. |
#8
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The three tubes are Liquid cooled in there own chambers.
kip -- "Watch the return E-Mail addy its false" "H. R. Bob Hofmann" wrote in message om... "john" wrote in message ... Well he showed you the Fluids...!!! Call another Guy in so he can tell you the same thing. kip -- "Watch the return E-Mail addy its false" "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark I would be very curious where there are fluids in a picture tube. Last time I checked, they were under a vacuum. If there is leakage of fluid, is it from around the safety glass on the front of the tube?? otherwise, someone has spilled coke or a bloody mary into the set. |
#9
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The three tubes are Liquid cooled in there own chambers.
kip -- "Watch the return E-Mail addy its false" "H. R. Bob Hofmann" wrote in message om... "john" wrote in message ... Well he showed you the Fluids...!!! Call another Guy in so he can tell you the same thing. kip -- "Watch the return E-Mail addy its false" "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark I would be very curious where there are fluids in a picture tube. Last time I checked, they were under a vacuum. If there is leakage of fluid, is it from around the safety glass on the front of the tube?? otherwise, someone has spilled coke or a bloody mary into the set. |
#11
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#12
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![]() I would be very curious where there are fluids in a picture tube. Last time I checked, they were under a vacuum. If there is leakage of fluid, is it from around the safety glass on the front of the tube?? otherwise, someone has spilled coke or a bloody mary into the set. It's a front- or rear-projection TV. While the CRTs are under vacuum and don't contain fluid themselves, a projection TV uses 3 CRTs (one each of red, green, blue) and a set of lenses to converge them into a single image. Between the tubes and the lenses there will be a gel or fluid to provide optical coupling between the two as well as cooling (since these run much brighter and hotter than standard TV CRTs). |
#13
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![]() I would be very curious where there are fluids in a picture tube. Last time I checked, they were under a vacuum. If there is leakage of fluid, is it from around the safety glass on the front of the tube?? otherwise, someone has spilled coke or a bloody mary into the set. It's a front- or rear-projection TV. While the CRTs are under vacuum and don't contain fluid themselves, a projection TV uses 3 CRTs (one each of red, green, blue) and a set of lenses to converge them into a single image. Between the tubes and the lenses there will be a gel or fluid to provide optical coupling between the two as well as cooling (since these run much brighter and hotter than standard TV CRTs). |
#14
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Obviously this message board is WAY over your head
I would be very curious where there are fluids in a picture tube. Last time I checked, they were under a vacuum. If there is leakage of fluid, is it from around the safety glass on the front of the tube?? otherwise, someone has spilled coke or a bloody mary into the set. |
#15
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without the fluid, it will go into phosphor melt, or possibly melt the glass
and its gone then. "Curmudgeon" wrote in message . .. Obviously this message board is WAY over your head I would be very curious where there are fluids in a picture tube. Last time I checked, they were under a vacuum. If there is leakage of fluid, is it from around the safety glass on the front of the tube?? otherwise, someone has spilled coke or a bloody mary into the set. |
#16
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without the fluid, it will go into phosphor melt, or possibly melt the glass
and its gone then. "Curmudgeon" wrote in message . .. Obviously this message board is WAY over your head I would be very curious where there are fluids in a picture tube. Last time I checked, they were under a vacuum. If there is leakage of fluid, is it from around the safety glass on the front of the tube?? otherwise, someone has spilled coke or a bloody mary into the set. |
#17
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Obviously this message board is WAY over your head
I would be very curious where there are fluids in a picture tube. Last time I checked, they were under a vacuum. If there is leakage of fluid, is it from around the safety glass on the front of the tube?? otherwise, someone has spilled coke or a bloody mary into the set. |
#18
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"john" wrote in message ...
Well he showed you the Fluids...!!! Call another Guy in so he can tell you the same thing. kip -- "Watch the return E-Mail addy its false" "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark I would be very curious where there are fluids in a picture tube. Last time I checked, they were under a vacuum. If there is leakage of fluid, is it from around the safety glass on the front of the tube?? otherwise, someone has spilled coke or a bloody mary into the set. |
#19
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Well he showed you the Fluids...!!!
Call another Guy in so he can tell you the same thing. kip -- "Watch the return E-Mail addy its false" "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
#20
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Had the set been moved recently? This is not an uncommon scenario when the
set is jarred in transit. We reseal the tubes rather than replacing. The boards are often not repairable, depending on the damage. Sometimes they are repairable. Leonard Caillouet "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
#21
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Everyone - Thanks for your responses.
Yes, about a 1 1/2 months ago I moved, so the TV was moved as well. I imagine that is what caused any sort of problem. From what they told me and wrote down - "Leaky CRT" - leaking picture tubes that require to be replaced, the video board cleaned and the picture re-aligned. Total cost $1211. Also, the person turned something which made the screen light up again - except only in one color with some lines. That is how he was narrowing it down to the video board shutting down to "protect" the tubes. Not sure just trying to relay what he said. May not have been related but when he did clear off some of the fluid, the screen did try to comeback on. Any more thoughts on what to do? still call in someone else to check it out? Thanks, Mark "Leonard G. Caillouet" wrote in message .. . Had the set been moved recently? This is not an uncommon scenario when the set is jarred in transit. We reseal the tubes rather than replacing. The boards are often not repairable, depending on the damage. Sometimes they are repairable. Leonard Caillouet "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
#22
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Call Mitsubishi Customer Relations at 949-830-8364. They might give you
some relief. If not, find a servicer who has done these before and re-seals the tubes and refills them. The board may need to be replaced, the tubes do not, unless Mits wants to buy them. I have more confidence in the ones I re-seal with RTV than new ones. Leonard Caillouet "Mark Pfeifer" wrote in message om... Everyone - Thanks for your responses. Yes, about a 1 1/2 months ago I moved, so the TV was moved as well. I imagine that is what caused any sort of problem. From what they told me and wrote down - "Leaky CRT" - leaking picture tubes that require to be replaced, the video board cleaned and the picture re-aligned. Total cost $1211. Also, the person turned something which made the screen light up again - except only in one color with some lines. That is how he was narrowing it down to the video board shutting down to "protect" the tubes. Not sure just trying to relay what he said. May not have been related but when he did clear off some of the fluid, the screen did try to comeback on. Any more thoughts on what to do? still call in someone else to check it out? Thanks, Mark "Leonard G. Caillouet" wrote in message .. . Had the set been moved recently? This is not an uncommon scenario when the set is jarred in transit. We reseal the tubes rather than replacing. The boards are often not repairable, depending on the damage. Sometimes they are repairable. Leonard Caillouet "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
#23
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"Leonard G. Caillouet" wrote in message ...
Call Mitsubishi Customer Relations at 949-830-8364. They might give you some relief. If not, find a servicer who has done these before and re-seals the tubes and refills them. The board may need to be replaced, the tubes do not, unless Mits wants to buy them. I have more confidence in the ones I re-seal with RTV than new ones. Leonard Caillouet Thanks! I did call and they said to fax in the issue with the service report and proof of purchase/serial number. Once they get that, they stated to give them 2 days for a response. We'll see what happens. As luck would have it, my brother's 50" had the same issue (same model year) and Mitsubishi paid the service company. We'll see if they are generous again. Mark |
#24
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![]() -- " We'll see what happens. As luck would have it, my brother's 50" had the same issue (same model year) and Mitsubishi paid the service So why ask here ?? dah kip company. We'll see if they are generous again. Mark |
#25
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![]() -- " We'll see what happens. As luck would have it, my brother's 50" had the same issue (same model year) and Mitsubishi paid the service So why ask here ?? dah kip company. We'll see if they are generous again. Mark |
#26
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"Leonard G. Caillouet" wrote in message ...
Call Mitsubishi Customer Relations at 949-830-8364. They might give you some relief. If not, find a servicer who has done these before and re-seals the tubes and refills them. The board may need to be replaced, the tubes do not, unless Mits wants to buy them. I have more confidence in the ones I re-seal with RTV than new ones. Leonard Caillouet Thanks! I did call and they said to fax in the issue with the service report and proof of purchase/serial number. Once they get that, they stated to give them 2 days for a response. We'll see what happens. As luck would have it, my brother's 50" had the same issue (same model year) and Mitsubishi paid the service company. We'll see if they are generous again. Mark |
#27
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Call Mitsubishi Customer Relations at 949-830-8364. They might give you
some relief. If not, find a servicer who has done these before and re-seals the tubes and refills them. The board may need to be replaced, the tubes do not, unless Mits wants to buy them. I have more confidence in the ones I re-seal with RTV than new ones. Leonard Caillouet "Mark Pfeifer" wrote in message om... Everyone - Thanks for your responses. Yes, about a 1 1/2 months ago I moved, so the TV was moved as well. I imagine that is what caused any sort of problem. From what they told me and wrote down - "Leaky CRT" - leaking picture tubes that require to be replaced, the video board cleaned and the picture re-aligned. Total cost $1211. Also, the person turned something which made the screen light up again - except only in one color with some lines. That is how he was narrowing it down to the video board shutting down to "protect" the tubes. Not sure just trying to relay what he said. May not have been related but when he did clear off some of the fluid, the screen did try to comeback on. Any more thoughts on what to do? still call in someone else to check it out? Thanks, Mark "Leonard G. Caillouet" wrote in message .. . Had the set been moved recently? This is not an uncommon scenario when the set is jarred in transit. We reseal the tubes rather than replacing. The boards are often not repairable, depending on the damage. Sometimes they are repairable. Leonard Caillouet "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
#28
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Everyone - Thanks for your responses.
Yes, about a 1 1/2 months ago I moved, so the TV was moved as well. I imagine that is what caused any sort of problem. From what they told me and wrote down - "Leaky CRT" - leaking picture tubes that require to be replaced, the video board cleaned and the picture re-aligned. Total cost $1211. Also, the person turned something which made the screen light up again - except only in one color with some lines. That is how he was narrowing it down to the video board shutting down to "protect" the tubes. Not sure just trying to relay what he said. May not have been related but when he did clear off some of the fluid, the screen did try to comeback on. Any more thoughts on what to do? still call in someone else to check it out? Thanks, Mark "Leonard G. Caillouet" wrote in message .. . Had the set been moved recently? This is not an uncommon scenario when the set is jarred in transit. We reseal the tubes rather than replacing. The boards are often not repairable, depending on the damage. Sometimes they are repairable. Leonard Caillouet "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
#29
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Had the set been moved recently? This is not an uncommon scenario when the
set is jarred in transit. We reseal the tubes rather than replacing. The boards are often not repairable, depending on the damage. Sometimes they are repairable. Leonard Caillouet "Mark Pfeifer" wrote in message om... I just had a serviceman look at my TV. He informed me (and showed be fluids) on the video board that he said was caused by the seals going bad on the picture tube. He said the tubes would have to be replaced and I was probably looking at a lot of money. Said I was looking at buying a new one instead. I have a 55" Mitsubishi purchased in 1998. What do people think? The screen would go black after a short time period when the tv warmed up. He said the tubes heated up, fluid leaked on the video board and was shorting out the video signal. Any thoughts? Thanks, Mark |
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