[TechAssist] Re: RCA F32632SB, CTC187CN3 dead.STL730 shorted,other,nowblows C4107
- From: Philip Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 25 Aug 2003 14:03:47 -0400
Polarity?
You mean those + and - things on the round thing with the two leads?
I thought they were automatic.
;-)
Yeah, I checked the polarity but that would not be the first time.Phone
rings...you know,
Phil
George wrote:
>
> Did you put it in with proper polarity?
>
> George
> Afana Electronics
> Moreno Valley, CA
>
> ----- Original Message -----
> From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, August 25, 2003 8:51 AM
> Subject: [TechAssist] RCA F32632SB, CTC187CN3 dead.STL730 shorted,other,now
> blows C4107
>
> > Came in dead. Measured short across HOT collector. I do a "kit" with
> > these when STK or HOT shows short.
> > Ordered and installed:
> > HOT Q4401 223942
> > C4402 206008
> > CR4402 242907
> > CR4403 243636
> > U4101 STK730-150, used OEM 223948
> > Fly T4401 223952
> > After installing above,I noted:
> > Orig. HOT was OK. (short was measured across it in circuit),
> > and I also did find a diode CR4106 shorted, so replaced that,too.
> > NOW:
> > Plugged set in,heard a raspy buzz from the SMPS. Located ,replaced
> > C4127 (10MFD/63V,low value, read 7mfd) in smps area.
> > Now rasp gone,but plugged in and "Hisssssss-POW!" the 100MFD/250 cap
> > (C4107, or 107K) blew apart! Checked diode going to it, OK.New. Replaced
> > with another cap,gets hot in seconds,would blow.
> > Originally this cap was OK in the set. I cannot figure if I injected
> > something,or what. Is the SMPS runnung away?
> > Need input here.
> > I suspect the orig. failed parts were the CR106 I found shorted and the
> > STK in the smps.
> > Why is this big 100MFD C4107 cap blowing???
> > Help.
> > Phil Bader
> > --
> > Philip Bader
> > Jan Phyl TV Inc. (estab. 1976)
> > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > Fax (863) 299-8821
> > email: tjanphyl@xxxxxxxxxxxxxxx
> > For Professional Technicians Only
> >
> >
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--
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
For Professional Technicians Only
*****************************************************************************
Classifieds! Buy or Sell!
http://sell.tech-assist.org
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.htm
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