Re: Help diagnosing problem.

From: James MacPhail <gg__at_email.domain.hidden>
Date: Sat, 03 May 2008 18:05:21 -0700

>> the power button shuts the computer off
>> so the cpu board must be working now, it also now attempts to read a
>> disk when it is inserted and then ejects it (I guess it must do that
>> when it can not read it) and the 3 beeps (two high one low) are
>> followed by three more but are all the same tone.

This means that:

- the self test passed
- your memory is good (probably), so you should see an image
- you need a keyboard and mouse

So, you need to address the no-video issue.

Did you try the white contrast/brightness knobs sticking out of the back of the Power Supply? If misadjusted, the screen will be black.

Can you see the CRT filament light up?

I suppose some voltage measurements on the video board come next....


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. Received on 2015-07-15 16:43:14

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