Path: utzoo!attcan!uunet!bu.edu!att!iuvax!daemon
From: commgrp@silver.ucs.indiana.edu (BACS Data Communications Group)
Newsgroups: sci.electronics
Subject: Re: IBM EGA monitor failure
Message-ID: <65477@iuvax.cs.indiana.edu>
Date: 18 Oct 90 14:51:33 GMT
Sender: daemon@iuvax.cs.indiana.edu
Lines: 26

sher@bbn.com (Lawrence D. Sher) writes:

>I have an IBM "Enhanced Color Display" EGA monitor, type 5154.  It 
>has a hardware failure.  When I last investigated getting it 
>repaired, all avenues seemed to lead to a fixed fee of ~$370.  I am 
>seeking advice about whether to trash it, try fixing it myself, or 
>pay...

Use a magnifying glass to inspect the flyback transformer's solder 
connections.  They sometimes break.

Inspect the power supply.  It unbolts and unplugs from the monitor, 
then you must drill out three pop-rivets.

Look for heat-damaged components in the power supply and elsewhere 
(burned resistors, discolored/bulged/leaking capacitors, oxidized 
solder joints.

There are two small electrolytic capacitors in the IBM EGA monitor 
power-supply which commonly fail:  They are side by side, under a 
large rectangular ceramic resistor which stands above the circuit 
board.

--

Frank Reid     W9MKV     reid@ucs.indiana.edu