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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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OK, I have 2 Toshiba 9" TV/DVDs. One (brand new, ebay, $20)had a gassed
CRT, so I took the tube out of the other one (ebay, $1, scratched up case) which worked perfectly. The first one works fine with the replaced tube. Now 1 1/2 years later, I buy a "new" CRT, (ebay) same part#, to get the second one up and running. After installing the tube, just a bright dot in the center of the screen on power-up. All the connections went normally. Is this indicative of a defective tube? The set worked fine before removing the old CRT. JR -- -------------------------------------------------------------- Home Page: http://www.seanet.com/~jasonrnorth |
#2
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Never mind. The deflection coils weren't on the replacement CRT.....
JR JR North wrote: OK, I have 2 Toshiba 9" TV/DVDs. One (brand new, ebay, $20)had a gassed CRT, so I took the tube out of the other one (ebay, $1, scratched up case) which worked perfectly. The first one works fine with the replaced tube. Now 1 1/2 years later, I buy a "new" CRT, (ebay) same part#, to get the second one up and running. After installing the tube, just a bright dot in the center of the screen on power-up. All the connections went normally. Is this indicative of a defective tube? The set worked fine before removing the old CRT. JR -- -------------------------------------------------------------- Home Page: http://www.seanet.com/~jasonrnorth |
#3
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Anyone have a set of coils for a A22JWG098X?
JR JR North wrote: Never mind. The deflection coils weren't on the replacement CRT..... JR JR North wrote: OK, I have 2 Toshiba 9" TV/DVDs. One (brand new, ebay, $20)had a gassed CRT, so I took the tube out of the other one (ebay, $1, scratched up case) which worked perfectly. The first one works fine with the replaced tube. Now 1 1/2 years later, I buy a "new" CRT, (ebay) same part#, to get the second one up and running. After installing the tube, just a bright dot in the center of the screen on power-up. All the connections went normally. Is this indicative of a defective tube? The set worked fine before removing the old CRT. JR -- -------------------------------------------------------------- Home Page: http://www.seanet.com/~jasonrnorth I |
#4
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On Feb 13, 9:48*pm, JR North wrote:
Never mind. The deflection coils weren't on the replacement CRT..... JR JR North wrote: OK, I have 2 Toshiba 9" TV/DVDs. One (brand new, ebay, $20)had a gassed CRT, so I took the tube out of the other one (ebay, $1, scratched up case) which worked perfectly. The first one works fine with the replaced tube. Now 1 1/2 years later, I buy a "new" CRT, (ebay) same part#, to get the second one up and running. After installing the tube, just a bright dot in the center of the screen on power-up. *All the connections went normally. Is this indicative of a defective tube? The set worked fine before removing the old CRT. JR -- -------------------------------------------------------------- * * * * Home Page:http://www.seanet.com/~jasonrnorth That was almost too obvious. |
#6
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![]() "JR North" wrote in message .. . Never mind. The deflection coils weren't on the replacement CRT..... JR How did you miss that? Normally the yoke is swapped over from the bad tube to the new one. |
#7
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![]() "James Sweet" wrote in message news:[email protected] "JR North" wrote in message .. . Never mind. The deflection coils weren't on the replacement CRT..... JR How did you miss that? Normally the yoke is swapped over from the bad tube to the new one. Guess he pitched the bad tube with the yoke. |
#8
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![]() "JR North" wrote in message .. . Never mind. The deflection coils weren't on the replacement CRT..... JR That'd do it ... !! :-) Arfa |
#9
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"Michael Kennedy" wrote in
: ..... Guess he pitched the bad tube with the yoke. Sounds eggzactly like the yoke was on him. -- bz please pardon my infinite ignorance, the set-of-things-I-do-not-know is an infinite set. remove ch100-5 to avoid spam trap |
#10
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Well, it was a year and a half later, and I'm not a TV tech. I knew
immediately on power up it was a deflection problem, but too groggy to figure it out until after posting. And yup...pitched the old tube with the yoke on. My thinking at the time was I would just get another $1 beater that some kid stuck a PBJ into the DVD drawer, and would get another CRT out of the deal. But never ran into another deal like that. I didn't know new tubes did not come with the yoke. I have this mental image of seeing the old tube arc into the recycle bin....groan. Still need help finding a yoke...gave y'all a good laugh, how about a bone here? JR JR North wrote: OK, I have 2 Toshiba 9" TV/DVDs. One (brand new, ebay, $20)had a gassed CRT, so I took the tube out of the other one (ebay, $1, scratched up case) which worked perfectly. The first one works fine with the replaced tube. Now 1 1/2 years later, I buy a "new" CRT, (ebay) same part#, to get the second one up and running. After installing the tube, just a bright dot in the center of the screen on power-up. All the connections went normally. Is this indicative of a defective tube? The set worked fine before removing the old CRT. JR -- -------------------------------------------------------------- Home Page: http://www.seanet.com/~jasonrnorth |
#11
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![]() "JR North" wrote in message .. . Well, it was a year and a half later, and I'm not a TV tech. I knew immediately on power up it was a deflection problem, but too groggy to figure it out until after posting. And yup...pitched the old tube with the yoke on. My thinking at the time was I would just get another $1 beater that some kid stuck a PBJ into the DVD drawer, and would get another CRT out of the deal. But never ran into another deal like that. I didn't know new tubes did not come with the yoke. I have this mental image of seeing the old tube arc into the recycle bin....groan. Still need help finding a yoke...gave y'all a good laugh, how about a bone here? JR Good luck. It's unlikely that the yoke is available anymore, and it's a critical component specific to the chassis it's designed to work with. Best bet is to find another identical unit with another problem and salvage the yoke. Some tubes have bonded yokes, the rest will not include a yoke. |
#12
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I swapped in a yoke/ring set from a '94 Magnavox 9" TV (took the better
part of an hour to remove them). Same connections/wire color, but the chassis didn't like it. Wouldn't power on with the yoke connected. I successfully re-installed them in the Mag-works fine. JR James Sweet wrote: "JR North" wrote in message .. . Well, it was a year and a half later, and I'm not a TV tech. I knew immediately on power up it was a deflection problem, but too groggy to figure it out until after posting. And yup...pitched the old tube with the yoke on. My thinking at the time was I would just get another $1 beater that some kid stuck a PBJ into the DVD drawer, and would get another CRT out of the deal. But never ran into another deal like that. I didn't know new tubes did not come with the yoke. I have this mental image of seeing the old tube arc into the recycle bin....groan. Still need help finding a yoke...gave y'all a good laugh, how about a bone here? JR Good luck. It's unlikely that the yoke is available anymore, and it's a critical component specific to the chassis it's designed to work with. Best bet is to find another identical unit with another problem and salvage the yoke. Some tubes have bonded yokes, the rest will not include a yoke. -- -------------------------------------------------------------- Home Page: http://www.seanet.com/~jasonrnorth |
#13
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![]() "JR North" wrote in message .. . I swapped in a yoke/ring set from a '94 Magnavox 9" TV (took the better part of an hour to remove them). Same connections/wire color, but the chassis didn't like it. Wouldn't power on with the yoke connected. I successfully re-installed them in the Mag-works fine. JR As James said, they tend to be chassis-specific, and it's unlikely that a 'transplant' from a different one will be successful in terms of geometry etc, even if you persuade the set to start up after fitting them ... Arfa |
#14
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![]() Arfa Daily wrote: "JR North" wrote in message .. . I swapped in a yoke/ring set from a '94 Magnavox 9" TV (took the better part of an hour to remove them). Same connections/wire color, but the chassis didn't like it. Wouldn't power on with the yoke connected. I successfully re-installed them in the Mag-works fine. JR As James said, they tend to be chassis-specific, and it's unlikely that a 'transplant' from a different one will be successful in terms of geometry etc, even if you persuade the set to start up after fitting them ... Arfa Sounds like its time for Ebay #4........... ![]() Bob |
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