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terminator
User
Aug 28, 2007, 9:14 PM
Post #2 of 5
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Re: [Jedibuckeye] Apex Problem
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Can't Post
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try resoldering any suspicious solder joints
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Jedibuckeye
New User
Aug 29, 2007, 1:41 AM
Post #3 of 5
(977 views)
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No nothings lose or broken.
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terminator
User
Aug 29, 2007, 1:52 AM
Post #4 of 5
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Re: [Jedibuckeye] Apex Problem
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that can only mean your tube is going out. the tvs now in days are not well built like they used to be. i had the same problem with one of my older tvs it was a 1983 rca colortrak it did the same thing your tv did
(This post was edited by terminator on Aug 29, 2007, 1:53 AM)
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rrobor
Veteran
Aug 29, 2007, 9:51 AM
Post #5 of 5
(966 views)
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Re: [Jedibuckeye] Apex Problem
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If its bright blue with retrace lines you could have two faults. one your blue video output transistor is failing and the voltage to the cathode is going low or 2 you have a heater cathode short which drops the cathode voltage. If you have a volt meter try reading cathode voltages, They are usually marked R,G and B on the tube base, they should be roughly the same normally around 160V. Blue should read low. If it does, switch off, slip the tube base off the tube then try again. If blue is now correct its the tube and it can be fixed. If not its the blue output , have a good look at what that is, if transistors, exchange them and see if thefault moves etc.
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