[TechAssist] Re: rca p60152 ptk169ptc conv problem
- From: Jorge Camboni <geo@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 02 May 2002 00:01:52 -0500
At 07:57 p.m. 01/05/02 -0400, "Jerry" <geiting@xxxxxxxxxx> wrote:
What Jerry says it's pure common sense, I just would like to add
something from my own experience: if convergence is not steady,
I mean if one or two colours are kind of "jumping" DO CHECK
THE HV SPLITTER FOR LOOSE CABLES. It not only happened to me
in a couple of CTC169s, but also in a couple of Toshibas, and it is
verryy misleading at the beginning....
good luck, gentlemen
Jorge Camboni, GY Electronics, Dallas, TX
>
>What Larry said is a good possibility. But if it is a convergence problem
>(which only happen rarely on these), you can still pull the light box to
>find it. After seeing it in the home and noting the symptoms so you will
>know what to look for, it the shop, put it on it's side and direct it to a
>wall to see the picture. A few convergence problems I have found in the
>past on these are leaky or shorted convergence output transistors, bad plug
>and socket connections on the front convergence generator board, static
>discharge to the convergence generator board caused by dirty or missing
>"shield" that is used on some models to insulate the board from high voltage
>discharge. This I have seen several times, and RCA has a bulletin out about
>this. Hope this helps.
>
>Jerry Eiting geiting@xxxxxxxxxx
>Christians Electronic Service
>Piqua, Ohio
>
>
>----- Original Message -----
>From: "Larry E." <videotech@xxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Wednesday, May 01, 2002 1:29 PM
>Subject: [TechAssist] Re: rca p60152 ptk169ptc conv problem
>
>
>|
>| Charles, I`ll bet it`s not convergence even though it may look off, I
>| had a 169PGB 3 months ago and it looked
>| like bad convergence but turned out to be C4402 and Cr4402 located
>| directly in front of the HOtransistor
>| hth,
>| Larry E.
>| American TV & Electronics
>| repair1 wrote:
>|
>| >This set is in customer's home(upstairs of course) from what customer
>| >describes conv is off on sides about a third of way in on each side,
>cust
>| >says crosshatch looks perfect. First of all, this hard to believe but I
>have
>| >never had a single conv failure in the couple of hundred I have repaired,
>| >secondly I am hesitant about just pulling light box, because I would not
>be
>| >able to see most conv problems with my setup at shop, any help would be
>| >greatly appreciated.
>| >
>| >charlers betzler
>| >Best Electronics
>| >repair1@xxxxxxxxxxxxx
>| >
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