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.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 399
Default Prob with CRT Replacement

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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 399
Default Prob with CRT Replacement

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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 399
Default Prob with CRT Replacement

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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 3,236
Default Prob with CRT Replacement

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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 1,572
Default Prob with CRT Replacement


"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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 52
Default Prob with CRT Replacement


"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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 6,772
Default Prob with CRT Replacement


"JR North" wrote in message
.. .
Never mind. The deflection coils weren't on the replacement CRT.....
JR


That'd do it ... !! :-)

Arfa


  #9   Report Post  
Posted to sci.electronics.repair
bz bz is offline
external usenet poster
 
Posts: 66
Default Prob with CRT Replacement

"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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 399
Default Prob with CRT Replacement

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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 1,572
Default Prob with CRT Replacement


"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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 399
Default Prob with CRT Replacement

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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 6,772
Default Prob with CRT Replacement


"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   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 175
Default Prob with CRT Replacement



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
Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Faucet prob Frank[_5_] Home Repair 2 October 17th 07 10:28 PM
5en aoc prob yhan Electronics Repair 0 January 20th 06 12:50 AM
aoc monitor prob yhan Electronics Repair 2 January 17th 06 09:41 AM
help! LPG gas oven prob Huj UK diy 8 November 19th 05 03:40 PM
Extractor fan prob Anteateruk UK diy 15 December 4th 03 04:21 PM


All times are GMT +1. The time now is 11:53 AM.

Powered by vBulletin® Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.
Copyright 2004-2023 DIYbanter.
The comments are property of their posters.
 

About Us

"It's about DIY & home improvement"