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Help please! Screen flickers but no video or sound
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Senior Member
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22. February 2006 @ 14:06 |
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you don't need to be on 2 Meg Ω setting you need to be on a 0-10 Ω type setting. at the higher settings your meter is applying more voltage to the circuit in an attempt to read through the higher resistance implemented in the circuit.
your looking for a short, a short is 0 Ω and with the meter set to read 2 meg it can read the internal resistance of the chip, it's a semi-conductor material and will therefore give resistance readings across different legs, applying to much voltage can reverse bias or over current circuits internal of the chip and destroy them.
I'd only suggest removing the chip if you KNOW your able to put it back on properly. if you found it difficult in the least kind of way to solder to the bios legs then reattaching the chip is going to prove even more difficult to you as it will require soldering of each and every leg on the chip, without bridging any of them.
kc
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yipee73
Newbie
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22. February 2006 @ 14:20 |
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The range for my multimeter includes: 200,2K,20K,200K,2M. I should set it to 200 right? Since that is the lowest and I should be getting a reading from any pair of pins right?
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Senior Member
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22. February 2006 @ 14:23 |
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yes use 200, and your looking for shorts, you may get readings from some pins as they do have chip internal resistance, but no shorts from one pin to the adjacent.
kc
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dg0896
Suspended permanently
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22. February 2006 @ 14:27 |
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Nice false info KC
If you have any questions that have not been awnsered send me a private message ASAP.
Newbies guide to backing up and playing ps2 DVD games:
http://forums.afterdawn.com/thread_view.cfm/299140
visit i_suck's ps2 website http://ps2burns.host.sk
Before posting search for awnsers throughout the sight.
Understatement: All information given by me is true to the best of my knowledge. The 100% accuracy of the information I give cannot be guaranteed.
DG0896
Proud Senior Member
Afterdawn.com |
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yipee73
Newbie
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22. February 2006 @ 14:29 |
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Thanks for all the valuable info. I'll open it up and check it again tonight and report back as soon as I'm done.
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ddp
Moderator
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22. February 2006 @ 16:04 |
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go with KC36330's info as i've done board work for celestica on sun microsystems & cisco systems's boards.
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yipee73
Newbie
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23. February 2006 @ 07:36 |
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Okay.. Still no video.. I check every single pins and no bridges. I also don't smell anything buring on the board so I don't think the BIOS chip is fried. Any other suggestions other than buying a new one? :(
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Senior Member
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23. February 2006 @ 10:12 |
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a burnt chip isn't always detectable by smell. the small voltages that can destroy internal components don't always produce enough current to cause sever burning damage. send it to a modder and have them take a look at it or try to find you another mobo or lastly get a new console.
kc
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yipee73
Newbie
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23. February 2006 @ 10:15 |
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I guess I'm running out of options. Thanks for all your inputs.
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Senior Member
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23. February 2006 @ 10:19 |
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no problem, PM me if you'd like to send it to me to have a look at it.
kc
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