Re: Apple 14" composite monitor on IIGS?

[Stephen Shaw <stephen@apple2.org.invalid.za>]

On 15 May 2002 19:00:39 GMT, ground.ecn AppleII Librarian wrote:

> In article <20020515122647.21834.00013237@mb-ch.aol.com>,
> Michael J. Mahon <mjmahon@aol.com> wrote:
>>SLICK underscore(_) RCBD at HOTMAIL, a dot(.) COM asked:
>>
>>>My IIGS monitor is at death's door, knocking loudly. It works fine for
>>>about 5 or 10 minutes, sometimes even 15, then it sudeenly cuts out, as if
>>>it were unplugged or turned off. I then need to press the power button to
>>>turn it off and wait. After about an hour or so it will work again.
>>
>><snip>
>>
>>Almost certainly, the problem with your monitor is an intermittent open
>>in the PC board, triggered by temperature rise.  This is easily fixed, once
>>found, by resoldering the connection or bridging the break.  Finding it can
>>be tricky if the crack or bad connection is not readily visible.
>>
>
> The most likely culprit is a broken solder connection on the flyback
> transformer to the motherboard.  Reheat each joint with a soldering pencil
> and try the monitor again.  I think <:-)> the flyback transformer is a big
> heavy thing near the bottom back.  Never done this fix before.
>
>   --Steve

Yes the flyback is located thereabouts. BE CAREFUL of touching the high voltage
wire coming out of and going to the top of the
back of the screen it carries about 25000 volts and sometimes does not lose its
charge. It may not be fatal but will still
give you a nasty bite.


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