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f205v
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Reged: 09/21/03
Posts: 193
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Re: Naomi board layout in C file
03/15/11 11:37 PM


Soory, a small mistake from my side.
I was referring to the cartridge connector close to the BIOS eprom.

If you want to take good PCB pictures go for this:
"The first step is to take pictures of the PCB; prepare a place that will become your "studio", I like very much to take pictures of PCBs while they are vertically laying against a wall, some other prefer to take pictures with the PCB flat on the ground. In both cases use a monocolour, flat, opaque, neutral background; avoid plain white, it will reverberate back to the camera; avoid multicolours tiles, they usually shine and tend to alterate camera contrast; eventually you can use for your background a brown paper of the kind used to wrap up delivery parcells. If you take pictures of a vertical PCB use a tripod, even a very small one to hold the camera; if you do not have a tripod, put the camera at the same heigh of the PCB, possibly resting over some books with a rigid cover; do not hold the camera in your hands because it's much more easy to "move" the picture. If you take picures of an horizontal PCB use a tripod again, of the kind with the tilting head to hold the camera horizontal as well; if you do not have a tripod hold the camera in your hands, tray to stay over the PCB with your legs slightly open, and hold your breath while taking the picture; if possible try to lay against a wall, this will help you to remain steady. The lighting of your "studio" is very important: the best possible source of light is the sun, but it's not always available, therefore a very good alternative is a couple of halogen lamps of about 300-500W, illuminating the PCB from a few meters away. The very important thing is to avoid direct lighting of the PCB, but to illuminate it with light reflecting out of the walls and ceiling, resembling as much as possible the natural ambient light. NEVER use the flashlight incorporated into your camera, because it will reflect back from the PCB and "blind" the picture. A good thing is to clean the PCB from dust before taking pictures; if the PCB is very dirt, at least clean the surface of the ICs with a soft slightly humid cloth, so that markings and labels are clearly visible. Remember to take pictures of both sides of the PCB (components and solder), if the PCB consists of different boards packed one over the other, separate them and take pictures individually."


Ciao
f205v







Entire thread
Subject Posted by Posted on
* Naomi board layout in C file Naoki 03/14/11 07:10 PM
. * Re: Naomi board layout in C file f205v  03/15/11 06:00 PM
. * Re: Naomi board layout in C file Naoki  03/15/11 06:33 PM
. * Re: Naomi board layout in C file apeman  03/18/11 08:06 PM
. * Re: Naomi board layout in C file Naoki  03/18/11 08:32 PM
. * Re: Naomi board layout in C file StilettoAdministrator  03/18/11 08:47 PM
. * Re: Naomi board layout in C file Naoki  03/19/11 12:21 AM
. * Re: Naomi board layout in C file f205v  03/15/11 11:37 PM
. * Re: Naomi board layout in C file R. Belmont  03/18/11 05:10 PM
. * Re: Naomi board layout in C file rtw  03/19/11 10:45 PM
. * Re: Naomi board layout in C file TheGuru  03/20/11 04:35 AM
. * Re: Naomi board layout in C file Naoki  03/18/11 08:33 PM

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