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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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Sony CRT TV Problem
My TV was dropped a very small distance and ever since the picture has
a kind of smearing on certain colours. Also the Standby light now flashes a special pattern as if to tell me something is wrong. It was a high end Sony, about 11 years ago. Everything was perfect until it got a drop a few months ago. Any idea what the problem is? |
#2
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Sony CRT TV Problem
This might be a good time to take advantage of your homeowners policy.
32andtwentyseven wrote: My TV was dropped a very small distance and ever since the picture has a kind of smearing on certain colours. Also the Standby light now flashes a special pattern as if to tell me something is wrong. It was a high end Sony, about 11 years ago. Everything was perfect until it got a drop a few months ago. Any idea what the problem is? This might be a good time to take advantage of your homeowners policy. -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P |
#3
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Sony CRT TV Problem
"32andtwentyseven" wrote in message ups.com... My TV was dropped a very small distance and ever since the picture has a kind of smearing on certain colours. Also the Standby light now flashes a special pattern as if to tell me something is wrong. It was a high end Sony, about 11 years ago. Everything was perfect until it got a drop a few months ago. Any idea what the problem is? 11 year old tv ??????????? You have had your moneys worth. Buy another. Regards |
#4
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Sony CRT TV Problem
On 8 Jul, 07:27, "Terry" wrote:
"32andtwentyseven" wrote in message ups.com... My TV was dropped a very small distance and ever since the picture has a kind of smearing on certain colours. Also the Standby light now flashes a special pattern as if to tell me something is wrong. It was a high end Sony, about 11 years ago. Everything was perfect until it got a drop a few months ago. Any idea what the problem is? 11 year old tv ??????????? You have had your moneys worth. Buy another. But I really love this TV |
#5
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Sony CRT TV Problem
In article .com,
32andtwentyseven wrote: On 8 Jul, 07:27, "Terry" wrote: "32andtwentyseven" wrote in message ups.com... My TV was dropped a very small distance and ever since the picture has a kind of smearing on certain colours. Also the Standby light now flashes a special pattern as if to tell me something is wrong. It was a high end Sony, about 11 years ago. Everything was perfect until it got a drop a few months ago. Any idea what the problem is? 11 year old tv ??????????? You have had your moneys worth. Buy another. But I really love this TV then take it to a repair shop. i don't subscribe to the "throw it away and buy new" philosophy that's so rampant these days. |
#6
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Sony CRT TV Problem
On 8 Jul, 02:41, 32andtwentyseven wrote:
My TV was dropped a very small distance and ever since the picture has a kind of smearing on certain colours. Also the Standby light now flashes a special pattern as if to tell me something is wrong. It was a high end Sony, about 11 years ago. Everything was perfect until it got a drop a few months ago. Any idea what the problem is? if its the shadowmask then a hard thump in the opposite direction can sometimes fix it. Its a bit kill or cure though. NT |
#7
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Sony CRT TV Problem
"32andtwentyseven" wrote in message ups.com... My TV was dropped a very small distance and ever since the picture has a kind of smearing on certain colours. Also the Standby light now flashes a special pattern as if to tell me something is wrong. It was a high end Sony, about 11 years ago. Everything was perfect until it got a drop a few months ago. Any idea what the problem is? Well some have responded about the shadow mask, but in this case I don't think this is your problem. If the LED is blinking, I suspect a crack in the circuit board near a heavy component, it's pretty common with a dropped set and can cause smearing or other problems. Now if you have a blob of incorrect color somewhere, it's probably the aperature grill in the tube shifted. Those old Sonys are nice sets though, if there's no splotches of color on the screen it's worth getting fixed, I have one that's several years older and it still looks fantastic. |
#8
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Sony CRT TV Problem
Highly probable the smearing on certain colours, particularly red, may be
due to the fact the CRT after 11 years is loosing emission. Adjust the picture so the smearing is evident, then lower the contrast and brightness to see if the smear tends to diminish as the settings are lowered. If they do, then it is time for another CRT (at least), and as posted after 11 years off the thing for new technology. The other thing is maybe the registration (Convergence) has changed but a drop normally will not do that. The suspect is one, the aperture grid assembly, AKA Shadow mask, has become dislodged: or two, the flippin thing is just getting worn out. "James Sweet" wrote in message news:z30ki.4597$qu4.2791@trndny06... "32andtwentyseven" wrote in message ups.com... My TV was dropped a very small distance and ever since the picture has a kind of smearing on certain colours. Also the Standby light now flashes a special pattern as if to tell me something is wrong. It was a high end Sony, about 11 years ago. Everything was perfect until it got a drop a few months ago. Any idea what the problem is? Well some have responded about the shadow mask, but in this case I don't think this is your problem. If the LED is blinking, I suspect a crack in the circuit board near a heavy component, it's pretty common with a dropped set and can cause smearing or other problems. Now if you have a blob of incorrect color somewhere, it's probably the aperature grill in the tube shifted. Those old Sonys are nice sets though, if there's no splotches of color on the screen it's worth getting fixed, I have one that's several years older and it still looks fantastic. |
#9
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Sony CRT TV Problem
On 8 Jul, 12:10, "Art" wrote:
Highly probable the smearing on certain colours, particularly red, may be due to the fact the CRT after 11 years is loosing emission. The set isn't loosing anything with time as far as I can see. Really, the picture was 100% perfect before it fell on its front. Adjust the picture so the smearing is evident, then lower the contrast and brightness to see if the smear tends to diminish as the settings are lowered. Ok I have done that. Yeah, the smear does reduce as the settings are lowered. But then so does the rest of the picture. |
#10
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Sony CRT TV Problem
Smear going away with diminished contrast and brightness tells the
experienced technician that the emission of the picture tube (CRT) has diminished to the point that it can now longer produce a quality picture. Find out what the CRT will cost to be replaced then decide if the 11 year old set is worth it or if you may be wiser to invest in something newer, love the old relic or not!! "32andtwentyseven" wrote in message oups.com... On 8 Jul, 12:10, "Art" wrote: Highly probable the smearing on certain colours, particularly red, may be due to the fact the CRT after 11 years is loosing emission. The set isn't loosing anything with time as far as I can see. Really, the picture was 100% perfect before it fell on its front. Adjust the picture so the smearing is evident, then lower the contrast and brightness to see if the smear tends to diminish as the settings are lowered. Ok I have done that. Yeah, the smear does reduce as the settings are lowered. But then so does the rest of the picture. |
#11
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Sony CRT TV Problem
"Art" wrote in message . .. Smear going away with diminished contrast and brightness tells the experienced technician that the emission of the picture tube (CRT) has diminished to the point that it can now longer produce a quality picture. Find out what the CRT will cost to be replaced then decide if the 11 year old set is worth it or if you may be wiser to invest in something newer, love the old relic or not!! No way, yes those symptoms are characteristic of a worn CRT but he stated clearly that the problem occurred suddenly. Weak CRTs wear out over a long period of time, they don't go from bright and beautiful to smeared and dim in a day. There are many other problems that can mimic a worn CRT, since the set took a whack I'd bet money it's nothing but a fracture in one of the boards. If only I had a dollar for every TV I've fixed that someone had diagnosed as a bad tube that was actually something else. |
#12
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Sony CRT TV Problem
On 8 Jul, 08:08, "James Sweet" wrote:
"32andtwentyseven" wrote in message ups.com... My TV was dropped a very small distance and ever since the picture has a kind of smearing on certain colours. Also the Standby light now flashes a special pattern as if to tell me something is wrong. It was a high end Sony, about 11 years ago. Everything was perfect until it got a drop a few months ago. Any idea what the problem is? Well some have responded about the shadow mask, but in this case I don't think this is your problem. If the LED is blinking, I suspect a crack in the circuit board near a heavy component, it's pretty common with a dropped set and can cause smearing or other problems. Now if you have a blob of incorrect color somewhere, it's probably the aperature grill in the tube shifted. Those old Sonys are nice sets though, if there's no splotches of color on the screen it's worth getting fixed, I have one that's several years older and it still looks fantastic. Thanks. Do you have any idea who I should take it to to have it fixed and how much it should roughly cost? The other problem that is has and the real reason that it needs to be fixed is that it causes interference to my digital box so it doesn't work correctly when near the TV. I should have put this my my original post really. |
#13
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Sony CRT TV Problem
Thanks. Do you have any idea who I should take it to to have it fixed and how much it should roughly cost? The other problem that is has and the real reason that it needs to be fixed is that it causes interference to my digital box so it doesn't work correctly when near the TV. I should have put this my my original post really. I don't even have any idea where you're located, and since I repair my own stuff I don't know of any shops in my area anyway but you should be able to find something in the phone book. Repair cost is likely to be $150-$200 depending on what they have to do. |
#14
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Sony CRT TV Problem
On 9 Jul, 00:53, "James Sweet" wrote:
Thanks. Do you have any idea who I should take it to to have it fixed and how much it should roughly cost? The other problem that is has and the real reason that it needs to be fixed is that it causes interference to my digital box so it doesn't work correctly when near the TV. I should have put this my my original post really. I don't even have any idea where you're located, and since I repair my own stuff I don't know of any shops in my area anyway but you should be able to find something in the phone book. Repair cost is likely to be $150-$200 depending on what they have to do. OK new TV it is then! |
#15
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Sony CRT TV Problem
"32andtwentyseven" wrote in message oups.com... On 9 Jul, 00:53, "James Sweet" wrote: Thanks. Do you have any idea who I should take it to to have it fixed and how much it should roughly cost? The other problem that is has and the real reason that it needs to be fixed is that it causes interference to my digital box so it doesn't work correctly when near the TV. I should have put this my my original post really. I don't even have any idea where you're located, and since I repair my own stuff I don't know of any shops in my area anyway but you should be able to find something in the phone book. Repair cost is likely to be $150-$200 depending on what they have to do. OK new TV it is then! Your choice, but keep in mind you'll have to spend a lot more than $150 to get a TV as well made as your Sony. |
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