[TechAssist] Re: RCA F31672ET - CTC187CJ - Squeals on plug-in
- From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 7 May 2004 11:55:08 +0100
SMPS is working just fine, +B is 145VDC in standby. Replaced HOT, turned
TV "ON" and heard two snaps then the HOT blew again. Could this snapping
sound be an arcing flyback? Problem is test this problem, I really can't
adjust the +B because it's a SMPS. If I could limit the +B I could then
monitor the current, shutting down the +B before the HOT blows. Is there
any other way to check if the flyback is bad, I don't have REAL flyback
ringer, just my oscillator and scope.
David Lessard
Alexandria Electronics
mr_fixit@xxxxxxxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of tvservice
Sent: Friday, May 07, 2004 2:54 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: RCA F31672ET - CTC187CJ - Squeals on plug-in
CR4106 #243636 diode
U4101 STK730-030 #223948 reg ic
Should I also come over and take the back off for you?
:>) he he
hth
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, May 06, 2004 1:08 PM
Subject: [TechAssist] RCA F31672ET - CTC187CJ - Squeals on plug-in
> This TV squeals upon plug-in. I know there's a short somewhere causing
> the chopper PS to squeal, question is where? Does anyone know what the
> common causes for this problem are? I don't have the TV on the bench
yet
> and I'm asking this question in advance.
>
>
> Thanks in advance.
>
>
>
> David Lessard
>
> Alexandria Electronics
>
> 50 Harrison Street
>
> P.O. Box 1366
>
> Alexandria, Ontario.
>
> Canada
>
> K0C-1A0
>
> mr_fixit@xxxxxxxxxxxx
>
>
>
>
>
>
>
------------------------------------------------------------------------
--
---
> Lost Password:
> http://www.tech-assist.org and select "Login Problems?".
> Email Archives:
> //www.freelists.org/archives/techassist/
------------------------------------------------------------------------
-----
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
