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Author Topic: WG U5000 Still Dull  (Read 1606 times)

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ToplessZ

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WG U5000 Still Dull
« on: April 23, 2008, 05:05:56 pm »
Rick heres the part numbers you needed..
Tube  R-A63ADG25X
Yoke 9A3002-1


Im still having trouble with my U5000, Ive capped it, and replaced resistor 811.  The picture is just dull...  Any suggestions...
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SirPeale

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Re: WG U5000 Still Dull
« Reply #1 on: April 23, 2008, 05:43:28 pm »
Hook it to a rejuvinator and test its output.
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Ken Layton

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Re: WG U5000 Still Dull
« Reply #2 on: April 23, 2008, 06:08:42 pm »
Test the tube on a rejuvenator. Is the tube a Zenith? If so throw it in the garbage.
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qrz

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Re: WG U5000 Still Dull
« Reply #3 on: April 23, 2008, 08:14:11 pm »
i assume u changed c805,808 (2.2uF@200v) on the main pcb .
checked and/or replaced caps on the neck board . q501,502 can fail ( low gain )
the cathode emissions would have been my 1st test......

the biggest issue on Zenith crt's is intermittent hk shorts . 
so what ,  just isolate the filaments and use it till it dies ........
there are far too many mfgr's producing junk these days .  :angry:
 pick a product , ANY product and one can find a person that will swear by it, and another that will swear AT it ...


qrz
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ToplessZ

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Re: WG U5000 Still Dull
« Reply #4 on: April 24, 2008, 07:59:21 am »
havent changed Q501, 502.  Ill start looking to order those....

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