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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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Disposable Televisions
Have a six month old tv that has gotten too "green." Anyone know where
I might find a representative schematic of a modern CRT circuit so that I could ponder the addition of a bias pot to the green channel? Thanks. |
#2
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Disposable Televisions
Does your TV have a Make and Model ??
wrote in message ups.com... Have a six month old tv that has gotten too "green." Anyone know where I might find a representative schematic of a modern CRT circuit so that I could ponder the addition of a bias pot to the green channel? Thanks. |
#3
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Disposable Televisions
Warranty repair. Do not open up the tv and void your warranty.
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#4
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Disposable Televisions
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#5
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Disposable Televisions
The brand is ``disposable`` i know the ones :-)
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#6
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Disposable Televisions
wrote in message oups.com... Tom MacIntyre wrote: On 6 Dec 2005 13:33:47 -0800, wrote: Have a six month old tv that has gotten too "green." Anyone know where I might find a representative schematic of a modern CRT circuit so that I could ponder the addition of a bias pot to the green channel? Thanks. Make? Model? Chassis #? Tom RCA 14F512T It's a little $100 set so the parts warranty is irrelevant. If a $3 pot will save it from the dumpster that would still be a good thing. Thanks. Good luck. I've found at the end of the day you have to sus out things for your selve as a lot of the people on this newsgroup are pig headed ****sters. |
#7
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Disposable Televisions
If the TV came with a one year warranty, I'd at least submit a claim. Many
manufacturers junk stuff under warranty and replace it with new units. Usually I try to buy most cheap electronics at either Sam's Club or Costco. Prices are usually the lowest found in retail and their return policies are unlimited unless it's computer or food items. wrote in message oups.com... It's a little $100 set so the parts warranty is irrelevant. If a $3 pot will save it from the dumpster that would still be a good thing. Thanks. |
#9
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Disposable Televisions
wrote: Tom MacIntyre wrote: On 6 Dec 2005 13:33:47 -0800, wrote: Have a six month old tv that has gotten too "green." Anyone know where I might find a representative schematic of a modern CRT circuit so that I could ponder the addition of a bias pot to the green channel? Thanks. Make? Model? Chassis #? Tom RCA 14F512T It's a little $100 set so the parts warranty is irrelevant. If a $3 pot will save it from the dumpster that would still be a good thing. Thanks. As Andy Cuffe wrote in a previous message, you could try going into the service menu of the set to try to see if the green color can be adjusted there. At this website they describe how to get into the service menu of an RCA TV (may or may not work for your model): http://www.artofhacking.com/files/TVMODES.TXT Just be aware that you might screw up the TV more than it already is by changing any of the settings there, so before changing anything write down what the value is, so you can change it back if it doesn't work. |
#10
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Disposable Televisions
Mikey wrote:
wrote: Tom MacIntyre wrote: On 6 Dec 2005 wrote: Have a six month old tv that has gotten too "green." Anyone know where I might find a representative schematic of a modern CRT circuit so that I could ponder the addition of a bias pot to the green channel? Thanks. Make? Model? Chassis #? Tom RCA 14F512T It's a little $100 set so the parts warranty is irrelevant. If a $3 pot will save it from the dumpster that would still be a good thing. Thanks. As Andy Cuffe wrote in a previous message, you could try going into the service menu of the set to try to see if the green color can be adjusted there. At this website they describe how to get into the service menu of an RCA TV (may or may not work for your model): http://www.artofhacking.com/files/TVMODES.TXT Just be aware that you might screw up the TV more than it already is by changing any of the settings there, so before changing anything write down what the value is, so you can change it back if it doesn't work. That is very interesting. Thanks. So far I haven't gotten into service mode but maybe if I try enough key combinations... I might find it... |
#11
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Disposable Televisions
On Wed, 7 Dec 2005 00:02:45 -0000, "David Sewell"
wrote: wrote in message roups.com... Tom MacIntyre wrote: On 6 Dec 2005 13:33:47 -0800, wrote: Have a six month old tv that has gotten too "green." Anyone know where I might find a representative schematic of a modern CRT circuit so that I could ponder the addition of a bias pot to the green channel? Thanks. Make? Model? Chassis #? Tom RCA 14F512T It's a little $100 set so the parts warranty is irrelevant. If a $3 pot will save it from the dumpster that would still be a good thing. Thanks. Good luck. I've found at the end of the day you have to sus out things for your selve as a lot of the people on this newsgroup are pig headed ****sters. No...a lot of people here recognize the potential danger of giving out information that will endanger a person or his/her equipment. Like it or not, believe it or not, that is the simple fact. Tom |
#12
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Disposable Televisions
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#13
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Disposable Televisions
On 7 Dec 2005 08:58:24 -0800, wrote:
Mikey wrote: wrote: Tom MacIntyre wrote: On 6 Dec 2005 wrote: Have a six month old tv that has gotten too "green." Anyone know where I might find a representative schematic of a modern CRT circuit so that I could ponder the addition of a bias pot to the green channel? Thanks. Make? Model? Chassis #? Tom RCA 14F512T It's a little $100 set so the parts warranty is irrelevant. If a $3 pot will save it from the dumpster that would still be a good thing. Thanks. As Andy Cuffe wrote in a previous message, you could try going into the service menu of the set to try to see if the green color can be adjusted there. At this website they describe how to get into the service menu of an RCA TV (may or may not work for your model): http://www.artofhacking.com/files/TVMODES.TXT Just be aware that you might screw up the TV more than it already is by changing any of the settings there, so before changing anything write down what the value is, so you can change it back if it doesn't work. That is very interesting. Thanks. So far I haven't gotten into service mode but maybe if I try enough key combinations... I might find it... According to another thread, someone else's kids managed to accomplish it... You also have to be concerned if it is the low or high green that is the problem, or both. If you can somehow get a gray scale pattern into the set, you'll be able to see this. Tom |
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