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fistral
Joined: 18 Mar 2006
Posts: 3
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 Posted: Sat Mar 18, 2006 11:05 pm Post subject: 11AK19 PRO |
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Hi
I have a Black Diamond BD2851s (Vestel 11AK19 Pro I think) 4:3 28" Tube
The original fault was intermittent narrow picture with sides bowed in caused by a dry joint at C630. After resoldering however the picture was too wide.
So I bought and fitted the Phoenix Modkit 52 E-W repair kit. The repair kit contained several values different to the originals but then it is supposed to be an upgrade.
R629 replacement was value 2R7 1/4W which I believe is correct for a 28" 4:3 screen.
Instead of Q603 original PHF9NQ20T or as the Drawing BUK444-200 the supplied transistor was an IRF630 which doesnt have an isolated case. Fortunately I noticed and fitted an insulator but I wasn't very pleased.
Fitting all this didn't make any difference, the picture is still too wide. I have tried the set up menu but the E-W and width adjustments have no effect. I'm thinking of changing Q603 for an IRF40f which seems to be a better substitute but don't think it will make a difference.
I'm worried that the E-W O/P of IC401 TDA884x Video processor could be damaged.
Any advice would be greatly appreciated. |
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fistral
Joined: 18 Mar 2006
Posts: 3
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| Posted: Thu Mar 30, 2006 5:37 pm Post subject: |
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Come on guys 56 views and no replys! 
Somebody must have an opinion - please  |
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keithw
Joined: 30 Mar 2006
Posts: 4
Location: Crete, Greece
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| Posted: Thu Mar 30, 2006 9:25 pm Post subject: |
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Usual causes are
Q603, I'll check equivalents tomorrow at work
C630
L604
Dry joints on C613, L602, remove and clean legs
EEPROM
IC401
Hope this helps
Keith |
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keithw
Joined: 30 Mar 2006
Posts: 4
Location: Crete, Greece
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| Posted: Thu Mar 30, 2006 10:10 pm Post subject: |
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| Forgot to say R629 should be 2.7ohm for 90 degree crt, 27 ohm for 110 degree crt, |
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fistral
Joined: 18 Mar 2006
Posts: 3
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| Posted: Sat Apr 01, 2006 7:01 pm Post subject: Thanks |
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Thanks very much for replying  . One thing I'm not sure of is how do you tell if the tube is 110 or 90 degree? It is 28".  |
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Guest
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| Posted: Tue Jan 30, 2007 1:56 pm Post subject: Re: 11AK19 PRO |
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| fistral wrote: | Hi
I have a Black Diamond BD2851s (Vestel 11AK19 Pro I think) 4:3 28" Tube
The original fault was intermittent narrow picture with sides bowed in caused by a dry joint at C630. After resoldering however the picture was too wide.
So I bought and fitted the Phoenix Modkit 52 E-W repair kit. The repair kit contained several values different to the originals but then it is supposed to be an upgrade.
R629 replacement was value 2R7 1/4W which I believe is correct for a 28" 4:3 screen.
Instead of Q603 original PHF9NQ20T or as the Drawing BUK444-200 the supplied transistor was an IRF630 which doesnt have an isolated case. Fortunately I noticed and fitted an insulator but I wasn't very pleased.
Fitting all this didn't make any difference, the picture is still too wide. I have tried the set up menu but the E-W and width adjustments have no effect. I'm thinking of changing Q603 for an IRF40f which seems to be a better substitute but don't think it will make a difference.
I'm worried that the E-W O/P of IC401 TDA884x Video processor could be damaged.
L 604 DEFECT.
Any advice would be greatly appreciated. | |
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svr
Joined: 04 Apr 2007
Posts: 5
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| Posted: Wed Apr 04, 2007 1:58 pm Post subject: |
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| replaced horizantal out put transistor-------new one use bu508af |
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svr
Joined: 04 Apr 2007
Posts: 5
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| Posted: Wed Apr 04, 2007 2:08 pm Post subject: |
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hello fistral
please geave me black diamond bd2851 ftb (or) fbt no------ |
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