This book DI1802 one computer, the overall appearance is very much like IMAC so we collectively referred to as the cottage apple

Take a look at the back photos.

Look inside the machine, remove the LCD screen appearance

Come up with the motherboard, so dirty, it is estimated that there is no pressure on the demolition of the demolition of the dust it

Then in relation to the maintenance of the motherboard, boot does not show, to the exclusion of the LCD screen and the screen line narrowing the scope of maintenance fault must be on the motherboard, one by one test point detection, finally found no memory supply, replacement of the PWM chip, the motherboard repair

See not, good big on it, the first time the maintenance can be connected to the external display of the whole machine.