Question about IBM Lenovo ThinkPad T400 Notebook

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The circled z appears next to the battery led and machine won't turn on

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Posted on Nov 15, 2012

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1 Answer

I have an hp dv6700 laptop that won't charge or turn on. Battery is dead and charger works. I replaced the power socket but it still won't turn on, the led does come on ,on the power socket. W


Better feast your eyes on this. The HP Pavilion dv6700 series of Notebook PC's, is also part of the Pavilion dv6000 series,

http://mayohardware.blogspot.com/2010/04/important-parts-on-dv6000-and-dv9000.html

1) http://www.mouser.com/Search/Refine.aspx?Keyword=FDS6679

$1.01 USD

2) http://www.mouser.com/ProductDetail/Diodes-Inc/ZXMP3F35N8TA/?qs=%2fha2pyFadujguNNSgppBRqXbOxXLwzGsCXiUkbNNDYUNuErUD%252bBaRQ%3d%3d

Cross reference match for AO4407.
74 Cents USD.

3) And/Or it can also be a ceramic capacitor. Those are the white rectangular smaller objects, that have a dark wide band across the middle of them.

Looking at the second photo that shows the AO4407 Power MOSFET, circled in Yellow, look to the right of the yellow circled AO4407.
See that rectangular object with the wide dark band?
There is one above it, and one above that. Now you can see the others also. There are also smaller versions in that area too.

Regards,
joecoolvette


A) http://en.wikipedia.org/wiki/MOSFET

B) http://en.wikipedia.org/wiki/Power_MOSFET

C) https://docs.google.com/viewer?a=v&q=cache:oER5NNz8cwcJ:www.fairchildsemi.com/ds/FD/FDS6675BZ.pdf+Fairchild+FDS6675BZ&hl=en&pid=bl&srcid=ADGEEShOhWPjm_M-ROHme4iEMrztCTOd-28jNiy1hVLQQh_VOyv8zcXEVDB_iTQA6MuZO88UmRkDgjyW9j4CP2aIJ-4DS-h6JNM3lvxldeApQeecmz_DADCw1s7tmNLxfPknqX14SZP6&sig=AHIEtbS_rYUAeo_8rB9YHkW05ZjLqeH4Jg

D) http://www.youtube.com/watch?v=ihoX7x0RBz8

E) http://www.youtube.com/watch?v=5uiroWBkdFY&feature=related




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1 Answer

Where doe's power led,power sw,hdd led on my e-machine


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Look for an area on the mother motherboard with two rows of six to eight pins. Next to them you should labels such as PWR_SW (power switch), RST_SW (reset switch), HDD_LED, PWR_LED, etc. You won't mess anything up connecting something to the wrong pins, but it isn't that hard to figure out as the wires are usually labeled in the same manner as the pins. So HDD_LED would plug into the HDD_LED pins, PWR_SW to PWR_SW, etc.

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