[rescue] Rescued iMacs looking for input on repair

[Thomas Gallaway]

Andrew Weiss wrote:

> On May 5, 2004, at 10:52 AM, Thomas Gallaway wrote:
>
>> Andrew Weiss wrote:
>>
>>> On May 5, 2004, at 10:21 AM, Thomas Gallaway wrote:
>>>
>>>>>
>>>> I read that the 333 actually do not have the flyback issue. They  
>>>> have  other parts. Also I can see
>>>> the tube power kinda up (short flicker in the corners while the  
>>>> short  period of it turning on).
>>>> _______________________________________________
>>>> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
>>>>
>>>>
>>>
>>> All iMacs from that period have a flyback issue.
>>>
>>> 233, 333, and 400 DV, DV+, DV SE.  It's the most common 
>>> age-related   failure mode for an all-in-one unit.  Even eMacs have 
>>> this issue over   time.
>>>
>>> I've replaced over 80 of these boards from several quite disparate   
>>> models and revisions.
>>>
>>> Andrew
>>
>>
>> So could I take the flyback out of the one that has the weird CRT  
>> issues and put it onto the other one.
>>
>> The one with the issue is a slot mounted. The one with the tube 
>> issue  is a tray mounted one.
>>
>> -- Thomas
>> _______________________________________________
>> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
>>
>>
>
> Absolutely not.  The boards are an entirely different shape.  Even  
> within models, you have to replace like for like because of tube used  
> (LG, or whatever) and different revisions.
>
> Unless you're talking about re-working the board on a sub-component  
> level... then you'd be on your own.
>
> Andrew
>
I just found this about the flyback issue:
http://www.macopz.com/columns/imacrepair/disassembly.html

An rather scary instruction on how to replace the flyback transformer.