Question about Acer TravelMate 630XCi (91.43U01.BA5) PC Notebook

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Can not come on

Dc power on

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Remove battery, try again with just AC no battery installed. also try with no battery, hold down power button while plugging in.

Posted on Oct 03, 2007

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Posted on Jan 02, 2017

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2 Answers

Does Huawei S6720 Switch has 600W DC power supply?


In fact, Huawei S6720 Switch has with 600W AC power supply, 350W DC power supply.
qq??20170907163228-2unbjz2gdcyqx1b141tbj330-2-0.png You can check in http://itprice.com/

qq??20170907163228-2unbjz2gdcyqx1b141tbj330-2-2.png

Jun 28, 2017 | Huawei Computers & Internet

1 Answer

Can AC and DC Power Modules Be Used in the Same Switch?


Fixed Switches Product Series Model AC and DC Power Module Mixing S3700/S5700/S6700 S3700-26C-HI Supported S5710-28C-EI Supported S5710-52C-EI Supported S5700-28C-HI Supported S5700-28C-HI-24S Supported S5700-EI (non-PoE) Supported in V200R005 S5700-SI (non-PoE) Supported in V200R005 S6700 Supported in V200R005 S5710-HI AC and DC power modules cannot be used together, but 350 W and 1150 W AC power modules can be used in one switch. S5720-HI Supported Modular Switches · When a switch does not use a PoE power module:
AC and DC power modules cannot be used together in the same type of power slots. Power modules with different power values cannot be used together either.
·
· When a switch uses a PoE power module:
Version PoE Power Module System Power Module V200R005C00 and earlier versions AC AC DC power module not supported - V200R006C00 and later versions AC AC DC DC AC DC ·
AC and DC power modules cannot be installed in the slots of the same type (system or PoE) in the same switch, and the power modules of different power values cannot be used in the same switch.
·


S5720 Switch Thunder link com

Oct 27, 2016 | AC Cars & Trucks

1 Answer

Label parts motherboard


1) AC adapter (Charger) checks to be good?

2) DC Power Jack checks to be good?
(DC_IN.
The jack on the laptop that the AC adapter plugs into)

3) Then the problem is more than likely the Power MOSFET's on the motherboard.
May also include electronic components, that support the P.MOSFET's, too.

Multi-Layer Ceramic Capacitors (MLCC), that are SMD/SMT, just like the Power MOSFET's.
(Surface Mount Device/Surface Mount Technology)

Using the HP Pavilion dv6000, and Pavilion dv9000, series of Notebook PC's for an example,

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

For these laptops the Fairchild Semiconductor Industries - FDS6679 - Power MOSFET is used, and the Alpha & Omega Semiconductor LTD - AO4407 - Power MOSFET, is used.

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

http://www.mouser.com/ProductDetail/Fairchild-Semiconductor/FDS6679AZ/?qs=sGAEpiMZZMshyDBzk1%2fWi1qxDdW%2fXBi2qgMuZEfLVO4%3d

http://www.mouser.com/Search/Refine.aspx?Keyword=AO4407

http://www.mouser.com/ProductDetail/Diodes-Inc/DMP3020LSS-13/?qs=%2fha2pyFadujguNNSgppBRqXbOxXLwzGsZm9SWxz1EqWpzoSJOpHpWA%3d%3d

Where the DC Power Jack is soldered to the motherboard, is the DC - DC circuit on the motherboard.
If the laptop uses a DC Power Harness, the DC to DC circuit is where the DC Power Harness plugs into the motherboard.

[Some models of laptops have a DC Power Jack, that has a small harness of wires coming off of it.
These wires end in a small male plug connector. The male plug connector plugs into the motherboard.
DC Power Harness ]

http://www.youtube.com/watch?v=3NN7UGWYmBY

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

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

Regards,
joecoolvette

May 16, 2013 | IBM ThinkPad Computers & Internet

1 Answer

Dc plug laptop


DC Power Jack

DC_IN

If the DC Power Jack is connected to wires, and the wires end in a male plug, the DC Power Jack is now called a DC Power Harness.

What about it? Need to replace it?

Post the laptop manufacturer name, and model number.
The model number can be found on the Bottom of the laptop.

Post back in a Comment.

Regards,
joecoolvette

Mar 07, 2013 | Computers & Internet

3 Answers

Hi when plug in my ac adapter into lenovo x61 the tablet will not turn on i try it on other computer and it will on what happen?


LOL, sounds like your tablet has seen it's better days. See why HP got out of the Tablet business? They are nothing but trouble.

Apr 08, 2012 | Lenovo Tablets & eReaders

1 Answer

My Q430's power connection is loose and not changing battery. Do I have to swap out motherboard?


The DC Power Jack is the jack you plug the AC adapter (Charger) into. (DC_IN)
The DC Power Jack for the Samsung Q430 series of Notebook PC's, consists of a;
1) DC Power Jack, which is connected to two wires.
2) The wires end in a small male plug connector.
It is now a DC Power Harness,
http://www.laptopjacks.com/part/Samsung-Q430-DC-Power-Jack-J-SM371300C1.html
FOLLOWING Anti-Static Procedures, the laptop is disassembled far enough to unplug the DC Power Harness, and plug a new one in.
Regards,
joecoolvette

Sep 10, 2011 | Samsung Q430 Laptop

1 Answer

Gateway kav60 not charging. i have to wiggle the cord and sometimes it refuses to charge.


I guess you've got a broken laptop power dc jack or power cable.


Symptoms of a broken Laptop DC power jack:


- The laptop only operates when you hold the DC power plug in a certain direction (DC jack is broken or loose).
- The laptop only runs on battery power (no power is getting through the DC jack).
- The laptop gets no power at all.
- The laptop will not charge the battery.
- The laptop switches from AC power to battery power intermittently due to a loose or broken power jack.
- The laptop suddenly shuts off.
- The DC jack may feel loose.
- Sparks come out of the back of the laptop when you insert the power plug into the DC jack.

Apr 21, 2011 | Lifetime Gateway KAV60 Replacement Laptop...

4 Answers

Hello my laptop t41 power is not even flash but the adapter is working,am technician and i have troubleshoot allot.


I concur with what Diegotech stated.

To iterate further;

1) The DC Power Jack (DC IN), may have cracked solder joint/s on the motherboard connector, (Female), where the DC Power Jack plugs in.

Resolder

2) The DC Power Jack may be broken.
Center Pin mount, and/or body of DC Power Jack, and/or Outer Shell mount.

Replace DC Power Jack.

3) Wires from the DC Power jack plug to the female connector on the motherboard, may be bad.

Replace DC Power Jack.

Two examples, of a place to buy an IBM ThinkPad T41 DC Power Jack,

1) http://www.buy.com/prod/dc-power-jack-connector-socket-for-ibm-thinkpad-t40-t41-t42-r50-r51-r52/q/sellerid/23962916/loc/101/215782035.html

2) http://www.machinaelectronics.com/store/buypart/IBM_Thinkpad_T41/DC-P001

Past this point it's a bad DC sensor on the motherboard.

Replace motherboard.

IBM ThinkPad T41 Service Manual, (Free),

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-ibmlenovo

On this page go down to the 8th line.
The one that starts with > ThinkPad T20.

Go across, and click on > T41

Takes approximately 2 seconds to see the first page, and additional time to fully download.

Page 142 for 14.1 inch LCD screen
Page 151 for 15 inch LCD screen

(PDF file page number box at top)

Dec 01, 2010 | IBM ThinkPad T41 Notebook

2 Answers

Where i can buy, power socket for my amilo pro v2010?


Just one example,

http://www.laptopjacks.com/view_part/For-Fujitsu-Amilo-Pro-V2010-DC-Power-Jack-FJ41420.html

The power socket in the laptop that the AC adapter (Charger) plugs into is a DC Power Jack.

Type Amilio Pro V2010 DC Power Jack in your browser search bar, press the Enter key.

To add:

http://www.laptoprepair101.com/laptop/2007/12/06/dc-power-jack-repair-guide/

Nov 07, 2010 | Fujitsu Siemens AMILO Pro V2010 Notebook

1 Answer

Wont recognise battery


Those may have 1 or 2 different problems. Cold Solder joint on Mobo. Bad DC Power Jack. 1: if it is the Cold Solder, you can reflow the solder and be done with it. 2: if it is the DC power jack, It should be replaced. For simplicity lets call them DC(A) and DC(B) There are 3 connections to it. Gnd, DC (A), and DC (B). When the powersupply is plugged in, contacts (A) touch to send +DC to the laptop. (B) is open. When the laptop is using battery power, contacts (B) touch to send power from the battery through the system. Over a period of time (inserting and removing the DC Power Cord), the contacts become fatigued, or oxidized and the DC(B) never closes - so it won't work from DC Battery. RATE ME - if it helps

Nov 26, 2006 | Compaq Refurbished Notebooks: Armada M700...

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