GVC M1566P monitor pulsing power supply.

Article View: sci.electronics.repair

Article #1069

Back to sci.electronics.repair Previous Next

#1069

From: Alan Liefting
Date: Mon, 18 Mar 2002 21:16

15 lines
1636 bytes

Hello All,

I have the above monitor which is pulsing.  The power supply is coming
up and shutting down a couple of times per second.  It is definitely a
power supply fault.  Voltage control is done on primary.  Disconnected
optocoupler which is for power supply standby.  Still no difference. 
Replaced control capacitor.  No difference.  Replaced opto and UC3842
control ic.  Still no difference.  Replaced a capacitor in an obscure
bit of circuitry and came right.  Monitor then failed on test!

FCC ID DK4M1566

HELP??!!

Alan Liefting

Technical Details

Message-ID: <3C965925.4A3EA9E4@ihug.co.nz>

Path:

arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!nntp-relay.ihug.net!lust.ihug.co.nz!ihug.co.nz!not-for-mail

Show Full Headers

Complete Article Headers

X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 1131b0,99e02760a0c0ab1c,start
X-Google-Attributes: gid1131b0,public
X-Google-Thread: 103407,99e02760a0c0ab1c,start
X-Google-Attributes: gid103407,public
X-Google-ArrivalTime: 2002-03-18 13:14:45 PST
Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!nntp-relay.ihug.net!lust.ihug.co.nz!ihug.co.nz!not-for-mail
From: Alan Liefting <aliefting@ihug.co.nz>
Newsgroups: sci.electronics.repair,aus.electronics
Subject: GVC M1566P monitor pulsing power supply.
Date: Tue, 19 Mar 2002 09:16:21 +1200
Organization: ihug ( New Zealand )
Lines: 15
Message-ID: <3C965925.4A3EA9E4@ihug.co.nz>
NNTP-Posting-Host: 203-173-246-137.nzwide.ihug.co.nz
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Trace: lust.ihug.co.nz 1016486084 26861 203.173.246.137 (18 Mar 2002 21:14:44 GMT)
X-Complaints-To: abuse@ihug.co.nz
NNTP-Posting-Date: Mon, 18 Mar 2002 21:14:44 +0000 (UTC)
X-Mailer: Mozilla 4.73 [en] (Win98; I)
X-Accept-Language: en