[TechAssist] Re: Fixed!! Re: 2nd tryRCA HD65W40 ATC311A2 hv leak at focus/screen control
- From: "Dan Williams" <wizhd@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 24 Jan 2006 08:35:55 -0600
OK techs, here is the "skinny" on this. A tech was at this project before me
and had the focus/screen control from flyback reversed for one, causing too
much voltage on focus to pic tubes. Thus the hv leaking as stated prev. Also
a capacitor (marked .101 12k) was inline with the focus line from flyback
transformer.
Called RCA TECH-ASSIST and they say no components inline with focus nor
screen lines to focus/screen control assy, which I was pretty sure of
anyways, but now CONFIRMED.
Maybe someone on the assy line screwed up?? Did this speed up the failure of
the hv splitter and resistors??
Anywho, unit has ran good for a full day.
Fun, Fun Fun!!!!!!
Dan W
Wizard Electronics
wizhd@xxxxxxxxxxxxxxxx
----- Original Message -----
From: "Dan Williams" <wizhd@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, January 23, 2006 2:47 PM
Subject: [TechAssist] Re: 2nd tryRCA HD65W40 ATC311A2 hv leak at
focus/screen control
> O.K. I'll answer this question. NO says RCA TECH ASSIST
> I will bypass it and let u guys know how it goes!!
>
>
> Wizard Electronics
> wizhd@xxxxxxxxxxxxxxxx
> ----- Original Message -----
> From: "Dan Williams" <wizhd@xxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, January 23, 2006 11:19 AM
> Subject: [TechAssist] Re: 2nd tryRCA HD65W40 ATC311A2 hv leak at
> focus/screen control
>
>
>> Anyone seen a projo with a capacitor inline with screen control from
>> flyback
>> to screen/focus control assy ?????????
>> It is a ceramic cap inline, not filter.
>>
>> I am about to bypass since I've never seen one used in this manner, but
>> don't want more problems.
>>
>> Dan W
>> Wizard Electronics
>> wizhd@xxxxxxxxxxxxxxxx
>> ----- Original Message -----
>> From: "Dan Williams" <wizhd@xxxxxxxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Saturday, January 21, 2006 1:21 PM
>> Subject: [TechAssist] RCA HD65W40 ATC311A2 hv leak at focus/screen
>> control
>>
>>
>>> RCA HD65W40 ATC311A2
>>> We found resistors R14705, R14719, R14718 open. Replaced resistors and
>>> hv
>>> splitter # 258512
>>> Now have hv leaking somewhere around focus/screen control assy.
>>>
>>> The screen lead from flyback has a capacitor in line to the "f/s"
>>> control.
>>> IS THIS NORMAL?
>>>
>>> Another tech has been here before me so I don't know if this is normal.
>>>
>>> Any help appreciated.
>>>
>>> Wizard Electronics
>>> wizhd@xxxxxxxxxxxxxxxx
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