Question about Buffalo Technology AirStation G54 WHR-HP-G54 Wireless Router (DHWHRHPG54)

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Motherboard Schematic Help! I blew up the momboard in my router. It appears to be the diode next to the power socket (Yeah, I know that sounds crazy). Does anyone know what the value of that diode is? Is there a fuse on the momboard? Could someone send me a schematic? Thanks.

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  • MrImp Nov 29, 2008

    erm... I think i have the same problem - my router was working but now it no longer works (gets no power). any suggestions? i have no idea about circuits and diodes either.



1 Answer

Happened to me, just put a straithrough wire or bridge it and dont plug your modems power supply in next time =!

Posted on Aug 28, 2008


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017


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Free schematic diagram

You may not be able to get a schematic. You need to be able to troubleshoot electronics without a schematic. Check where the AC cord connects to the circuit board. In general there should be a fuse and a transient suppressor. Next will be the transformer if there is one or rectifier diodes. These usually fail in a lightning strike. There is also the probability of other component failures, but you won'y know that until you repair these components.

Sep 01, 2014 | Sound Around Pyle Home PTCDS2UI AM/FM...

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Im a technician so i had cum accros a tricky fault,i have a sinotech for the first tym it blewed psu,i found the fault and tv start bt it played 4 2 days,after that it blewed a resistor next to FBT,and a...

I don't know this for sure but you blew the main power fuse. Hopefully that's all you did. I believe you might have melted the main power board take it out if you can and look at it.

Nov 19, 2017 | Televison & Video

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Does anyone know where to get the schematic for the dv6550us motherboard?

The closest I come to an HP Pavilion dv6550us, on HP Support, or on the internet is;

Pavilion dv6550tx
Next inline is Pavilion dv6560us,
then Pavilion dv6450us

Not available to the public.

Do have a Block Diagram,

Models that use an AMD processor,

1) Socket S1 processor socket,

2) Motherboard chipset is an Nvidia MCP51M
Which is the mobile version of Nvidia GeForce Go 6100, or Go 6150;
and Nvidia nForce 430,

Graphics chipset,

Conexant CX20549-12 audio chipset
Realtek RTL8101C Ethernet chipset

Models that use an Intel processor,

Uses the Socket P processor socket,

Both use the Fairchild Semiconductor Industries - FDS6679 - Power MOSFET, and Alpha & Omega Semiconductor LTD - AO4407 - Power MOSFET, in the DC - DC circuit; as far as I know.

Both are Obsolete, but there are cross match examples out there.
(FDS6679AZ for FDS6679, for one)

Indicates HP Pavilion dv9000 series, and AMD; but also matches up to the Pavilion dv6500 series,

Scroll down. (Zoom In icon { + } at TOP to increase view size,
Zoom Out icon { - } to decrease view size )

Asking for a Schematic, do I assume you are attempting
Board Level Component replacement?

What SMD/SMT IC component are you trying to replace?
(Surface Mount Device/Surface Mount Technology. Integrated Circuit)

Motherboard chipset info, and processor socket info, for processor upgrade.
Same thing for Ram Memory upgrade.
It does use DDR2 Sdram (SO-DIMM), and at 667MegaHertz, to my knowledge.

What usually goes bad on the HP Pavilion dv2000 series, Pavilion dv6000 series, and Pavilion dv9000 series of Notebook PC's?

The cooling for the graphics chipset is inadequate, therefore the graphics chipset overheats, and partially melts the Solder Joints in the BGA surface mount.

Resulting in no graphics.

Power MOSFET's in DC - DC circuit go bad.
Continued in Comment

Apr 07, 2013 | HP Pavilion Computers & Internet

2 Answers

Is there a fuse inside superstar 360

  • Hi, I can help.

  • No fuses in the literal sense. There are two capacitors and a diode to check. all are available at Radio Shack as labeled on the schematic. The schematic is a cut away of the board where the power cord is inserted into the radio.


  • If any of them blew it will interrupt your circuit.

  • If you have any comments please feel free to leave them here.
  • hope this helps and thank you for suing FixYa.
Regards, Tony

Sep 13, 2011 | Superstar SS-121 120-Channels Base CB...

3 Answers

I have a laptop motherboard (da0at3mb8f0) which will not power on. I see a small charred area on the motherboard right on the power input circuit. I want to replace these diodes/resistors but I cant tell...

Even if you would find the parts, it's impossible to repair it - the multilayer board on which they are soldered is shorted and that cannot be fixed.

Mar 23, 2010 | Computers & Internet

1 Answer

As soon as i turn my amp on it starts getting extremelly hot and there is a hum comming from the speaker but no sound from plugged in instruments. I think a diode or resistor went bad. Can anybody help me....

yeah its cooking. there should be four diodes grouped together on the power supply 1n4003 or something like that. maybe the fatter electrolytics are going bad too. you can order parts from the diodes are 6 cents each and the caps are under a buck each. if you cant find the extact match for the caps get the next voltage rating higher, dont go lower in voltage

Mar 16, 2010 | Washburn Amplifiers: 25 WATT Guitar...

1 Answer

Burnt out 3 diodes..what are they?

look man that molex connector is providing the mass of the power that board uses w/o that i would think it'd be hard to fry anything unless the board was already screwed :( i think replacing them only to watch it happen again would be no fun :(

Mar 31, 2008 | ATI RADEON X1650 Graphic Card

1 Answer

Won't power up CPU fan


It sounds like you have a short somewhere in the motherboard and should have it replaced. The website for this product can be found here.

Also, I found a technical guide for you which may help.

Please let me know if this helps. Good luck!

Feb 29, 2008 | Intel D875PBZ Motherboard

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