[TechAssist] Re: RCA CTC203 F2PIP Module Failures
- From: "John Myers" <myers_tv@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 9 Aug 2004 21:19:55 -0400
Jeff,
I just did one that had a bad 3.3V regulator, but I've also done a couple
that had a leaky chip cap. There are several of them hanging off the 3.3V
line, and I don't recall if one stands out as a troublesome one.
John Myers
Myers TV Service Since 1984
Alliance, OH
ph 330-821-6545
myers_tv@xxxxxxxxxxxxx
www.alliancetvrepair.com
----- Original Message -----
From: "Shoreline Electronics" <jstielau@xxxxxxxx>
To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
Sent: Monday, August 09, 2004 12:43 PM
Subject: [TechAssist] RCA CTC203 F2PIP Module Failures
>
>
> Make : RCA
> Model : F32665
> Chassis : CTC203CH3
>
> Problem : Shuts down on power up.
>
> Traced problem to the F2PIP module.
>
> IC U18101 ( LM317T) in the 3.3V regulator circuit is only putting out 1.2V
> on pin 2
>
> Tried a new IC , no change. Something seems to be loading down the 3.3V
> line..........although resistance reading to ground is not low at all ,
> almost 1 meg.
>
> By cutting a few supply feed traces I can get the 3.3V line to come up.
>
> I did pull the main PIP processor IC and still have the low voltage.
>
> Has anyone seen a common fault on these F2PIP board?
>
>
> These boards appear to be on back order for the time being
>
> =================================
> Jeff Stielau
> Shoreline Electronics Repair
> 344 East Main Street
> Clinton,CT 06413
> (860)399-1861
> (860)664-3535 FAX
> jstielau@xxxxxxxx
> =================================
>
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