RCA-D52W23 Blue CRT Cuts Out: Page 2


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RCA-D52W23 Blue CRT Cuts Out

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Ron.M
Veteran

Dec 13, 2009, 3:41 AM

Post #26 of 31 (1133 views)
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Re: [brrazap] RCA-D52W23 Blue CRT Cuts Out [In reply to]	Can't Post

brrazap;...

Quote

How sure can we be that the problem is only with the crt board? I ask because getting a replacement board wouldn't be out of the question.

Well , let's put it this way...
It's either the board ( I really suspect the IC on that board is the problem.) or what drives it....
Why don't you try & change the IC first...
2 reasons;
#1=It will be cheaper & easier to do....
#2=It should be easier to find the IC online rather than the CRT board...

IF you decide to go the IC route:...
You will need "solder wick" & the number that's on the top of the IC....
Give me (post) the # here & I'll see where you can get it & how much it'll cost....OK.... Wink

...

Do not remove the IC until I give you info on how to do it...
They go in only one way...

Later....Ron.M.... Cool

....
Veteran & Retired TV technician

brrazap
New User

Dec 13, 2009, 4:26 AM

Post #27 of 31 (1130 views)
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Re: [Ron.M] RCA-D52W23 Blue CRT Cuts Out [In reply to]	Can't Post

In Reply To

brrazap;...

Quote

How sure can we be that the problem is only with the crt board? I ask because getting a replacement board wouldn't be out of the question.

...

Do not remove the IC until I give you info on how to do it...
They go in only one way...

Later....Ron.M.... Cool

....

Shouldn't pose a problem removing the IC and putting a new one in. I've done something like that a couple times. Pointers are always welcome though. Ahhh, a desoldering braid? I have a desoldering iron, not the best but it does the job. Would typical 60/40 solder be ok for this? Of course, there would be a honking big resistor right in front of it blocking the screws that attach it to the heatsink. (I have plenty of thermal paste on hand as well!:-)

Here's the part #

Philips TDA6120Q (Video Output Amplifier)

I was a little shocked at how easy it was to find the datasheet for the TDA6120Q. Very informative, some of it I understand, some I don't. It does have a fairly good description of soldering methods. I should be able to find this part locally for $2-$3.

(This post was edited by brrazap on Dec 13, 2009, 3:00 PM)

Ron.M
Veteran

Dec 13, 2009, 6:59 PM

Post #28 of 31 (1117 views)
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Re: [brrazap] RCA-D52W23 Blue CRT Cuts Out [In reply to]	Can't Post

brrazap;....

A little suggestion about posting....
No need to click on ""[In reply to] ""....
That copies the whole post into the reply....Not needed....
If you need to refer to the post you are replying to , click on "Reply" instead & just scroll down below the "reply box" (the one you type your reply in) & the post is there for reference....

Back to your TV:

Quote

Ahhh, a desoldering braid?

Get the type that has resin embedded....Not all of them do & it makes for a lousy job removing the old solder if it does not have the resin embedded in the braid...
I reccommend the following;==>

21-320 - Chem-Wik Lite - .1'' x 5.5' Blue Desoldering Braid
As the standard desoldering braid for service and repair, Chem-Wik� Desoldering Braid ensures fast and safe desoldering. The ultra-pure, oxygen free copper braid qu...
Mfr Name: Chemtronics
Mfr Number: 10-5L
Available here;==>
http://www.mcmelectronics.com/search.aspx?K=wick

Scroll down to #21-320...

Price;==> $2.99 + s&h

Quote

Would typical 60/40 solder be ok for this?

Yes , perfect !!!

Quote

Philips TDA6120Q (Video Output Amplifier) .....I should be able to find this part locally for $2-$3.

Maybe , maybe not....Here is a supplier;==>

TDA6120Q - Philips IC 13-pin ZIP MOS Video Output Amplifier *SS
PHILIPS IC 13-PIN ZIP MOS VIDEO OUTPUT AMPLIFIER *SS

Mfr Name: Distributed By MCM

Available here;==>
http://www.mcmelectronics.com/search.aspx?K=TDA6120Q

Price;==>..$5.46 +s&h

That's the same company that has the solder wick...
So if you need the solder wick & can't find it &/or the IC locally you can
order it or both from them & save some cash....
I've done bussiness with MCM in the past & I reccommend them highly....
They are reputable & trustworthy....

Good Luck.....

Later....Ron.M.... Cool

....
Veteran & Retired TV technician

(This post was edited by Ron.M on Dec 13, 2009, 7:03 PM)

brrazap
New User

Dec 13, 2009, 8:06 PM

Post #29 of 31 (1110 views)
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Re: [Ron.M] RCA-D52W23 Blue CRT Cuts Out [In reply to]	Can't Post

I either click on 'Quote' or 'Reply', whichever I feel works the best. :-) I never really did care much for web based posting & threading. (SIGH) I really miss newsgroups at times. :-)

The area I live in, Boston-Metrowest, is plentiful with tv repair shops and electronics parts stores. Not counting all the Radio Shacks. I already found a place in my local area that has the IC part in stock for $3.75. If need be, I can get a crt board for $35. I think I'll pick up some of the same type of desoldering braid you mentioned while I'm at it. The desoldering iron I have is somewhat of a pain to use, and the datasheet was specific about the amount of time vs temperature for manual soldering.

It'll be a couple days or so before I'm able to take care of this. In the meantime, Thank You for all your help! I'll post the results when I get some. :-)

brrazap
New User

Dec 16, 2009, 3:25 AM

Post #30 of 31 (1098 views)
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Re: [Ron.M] RCA-D52W23 Blue CRT Cuts Out [In reply to]	Can't Post

Hey Ron -

Got the IC, took the old one out and put the new one in with no problems. I cleaned the dust out of everything beforehand, with all the panels off the mirror, lenses, and back of the screen got a bit dusty. Plugged everything back in, fired her up, and it's been four hours and the blue crt is working just fine. Tweaked the picture settings a little, and the picture is fantastic.

Thanks! Smile

Ron.M
Veteran

Dec 16, 2009, 4:07 AM

Post #31 of 31 (1094 views)
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Re: [brrazap] RCA-D52W23 Blue CRT Cuts Out [In reply to]	Can't Post

brrazap;.....

You are most Welcome , my pleasure !!!

Quote

it's been four hours and the blue crt is working just fine. Tweaked the picture settings a little, and the picture is fantastic.

It'll be awhile before I do any of this;==>

To be sure ,I'd try it for a day or so....

This is for you;==>

Nice work....

brrazap:
To you & your loved ones;==>
Merry Christmas , Happy Holidays....

Later....Ron.M....

.....
Veteran & Retired TV technician

(This post was edited by Ron.M on Dec 16, 2009, 4:10 AM)

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