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I disassembled the laptop's screen to check it's flat cable and flat cable connector (part number: 6017B0147801), but saw no visible damage. So it has to be checked by replacement?
I tried to reinstall the Windows OS, but the laptop switched off after 2 miniutes, but it doesn't switch off in...
Actually it's the start of third pass. When the pass meter in the first pass reached 100%, the writing "Pass complete, no errors, press Esc to exit" appeared in the center below, and the pass meter started counting from 0% again. On the start of third pass i switched of the laptop.
I don't...
Thank you all for reasonable suggestions. I used memtest86 to check the memory and the results are on the photo:
So if the screen's flat cable is demaged is it possible to have a norman operation in "safe mode" and in "normal mode" switch offs (like when a desktop computer is unplugged from...
Hello,
Could anyone give an advise about this laptop? (model# PSAG0U-02900L)
Recently it repeatedly switches off, as if electricity "disappears". And sometimes its display looks like in the photo I've attached. Strange, but in "safe mode" it seems doesn't switch off. In Febuary this year its...
If you want to get 300mV from -1.2V, then what is the reason for using 10uF capacitance in parallel with the 42.2k resistor? Try to remove that capacitor, and check the circuit for oscillations.
Re: 3GPP
All the specifications from 3GPP are available for free download on the site:
www.3GPP.org
The official ETSI versions of 3GPP documents can be obtained from:
h**p://pda.etsi.org/pda
Hope this helps.
Re: career plans
The both fields are great. The better for you is the one that you like more, feel
more inclined, confident (based on previous experience or hobby) to work in
(perhaps for the whole life?).
Good luck in your choice!
Re: GSM question
To avoid the concentration of signaling messages from all over a big country in
a single spot, a big PLMN, say 25 million subscribers, may have several HLRs,
so that each HLR has to maintain the data of about 1–4 million subscribers,
depending on the preferences of the network...
Could someone tell what values of frequency “reuse pattern“ are used
in modern, operational GSM900 networks with “3 sector” BTS stations?
Thanks in advance.
dc-restoration circuit design
If you can find the book "Electronic Principles" (even earlier editions) by Albert P. Malvino then, I think, it's a good resource to start.
transistor basics
When Vds > Vgs − Vt the voltage Vds − (Vgs − Vt) across the pinched-off region(saturated part of the channel) creates a
strong electric field, which efficiently transports the electrical charges (electrons or holes) from the strongly inverted region
(nonsaturated part of the...
Re: gprs vs gsm
GPRS is the enhancement of GSM for packet data transfer. Compared to GSM
with circuit switched connections and fixed data transfer rates, GPRS offers
flexibility: high data transfer rates if there are few users and low rates if there are
many users. And in addition billing in...
Here you'll find a good description of Gaussian or Normal distribution:
h**p://en.wikipedia.org/wiki/Normal_distribution
Other way of writing the formula:
According to that description your suggestion k=0.5*rand(1.5) is not right.
If you change the standard deviation...
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