RGH Resistance across Demon's NAND quick solder points?

G

gamehawk55

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Mar 21, 2006
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Canada
www.chaotic-consoles.com
Just had a quick question about the row of NAND quick solder points on the demon.

What should the resistance across all the points between D0-D7 be? I'm getting about 9.95K ohms when I check points D1-D7 and all in between but getting 9.35K ohms between D0 and all other points. Is this normal? Or should it be 9.95K ohms as well? Or are my resistances supposed to be even higher on those points? I thought I read somewhere that somebody was getting 20K ohms across those points?

I only ask because I've been having some weird intermittent issues with reading/writing the nands, and other odd "no power" issues.

For example. I had just finished putting the console back together after having a problem with reading/writing (Manufacturer code AF not found). I had touched up the quick solder points, verified continuity with my multimeter, put it all back together. I booted up again fine, then I verified reading/writing again. Turned the console off, then it wouldn't turn back on again. Opened it AGAIN, and somehow magically D0 and D1 were now bridged:crazy:. Anyways after touching it up again it's now working but wanted to verify whether or not my resistance values are correct for those points.
 
Martin C

Martin C

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Jan 10, 2004
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lol, no they didn't - if contacts could magically bridge we'd have millions of consumer units playing up. It's possible you had residue on the board. Get a toothbrush and some IPA/MEK and clean up the points after soldering. Use some paper towel to absorb the surface liquid then either air dry or blast with a hair-dryer for 30-60 secs to remove any moisture.

Each of those points are connected to a 10k resistor, so around 10k is fine. resistors can have 5% variance so +/- 500 Ohms is fine.
 
Martin C

Martin C

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Jan 10, 2004
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appokruznz1028 said:
can someone please tell me how to test all of the points with a multimeter ?
Click to expand...
This is one of those 'if you need to be told how to test for continuity, you shouldn't be installing it' answers.

DemoNs are for professional installation. Anyone who knows what they're doing will know how to do this. If you don't, I suggest giving it to someone who does.

If you need help, start a new thread.
 
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