Fri, 26 Apr 2002 22:03:38 -0700

On 27/4/02 3:31 am, "Robert Newman" <> wrote:

 

 

>>> Hi:

>>>

>>> I was just given an Apple ColorSync 17 inch monitor. I used it for about 3

>>> days, and suddenly the screen just goes black. The green LED goes out also.

>>> You can turn it off, and then back on and it works for a few more minutes.

>>> This is one beautiful monitor, and I would like to fix it. Does anyone have

>>> a link for the service manual, or have any suggestions as to what the

>>> problem may be. I am back to using an excellent Apple 15 inch, but it just

>>> doesn't compare to that beautiful 17". By the way, it seems that I find

>>> more dead 17" monitors, that 14" or 15". Is it because of the power demands

>>> because of the large screen?

>>>

>>> TIA,

>>> Robert Newman

 

Apples ColorSync monitors perform well, but were one of the most unreliable

products they made. Their warranty was extended, but this option has now

long expired. Even though they are getting on a bit now, I still repair

quite a few.

 

The most common problems relate to poor soldering, the worst areas being the

power supply filter inductors, horizontal yoke connector, flyback

transformer B+ pins and generally all around the horizontal deflection area.

There are also a multitude of known hardware problems varying from high ESR

capacitors, leaky transistors to defective SMD components within the video

board. If you want to tackle the repair yourself I'd recommend you only try

resoldering the board. You won't find any of this listed in the Apple

'service manual' as the Apple service method is to board swap. It will

advise you how to pull it apart.

 

Steve Bell

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