Question about Panasonic AC Adapter and Battery Charger (VWAD21PPK)

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500m 6.5VDC AC ADAPTOR

DEAD 3015 TRANSISTOR SHORT/BROKEN

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1 Answer

Amp turns on but puts out no sound except for faint noise which dies out after a few seconds.


It sounds like a defective/incorrect AC-to-DC adapter may have caused your problem. These adapter come with different output voltages, AC or DC output and different amperage ratings. AC-to-DC adapters list the polarity of the DC voltage as it relates to the DC power plug and you must match both the devices voltage and power requirements. As for the amp...not working on batteries either, I would suspect output transistors or IC.

May 23, 2014 | Marshall Amplification Marshall MG2FX...

1 Answer

WONT POWER UP


First you shoult remove the battery (it could be short circuited) then try powering up, if it's not working check the AC adaptor with a multimeter to verify voltage (compare with what it is ritten on the AC adaptor) last thing you should remove everything you can (RAM, HARD DRIVE, NIC's, CD ROM, etc...) than try powering up again if it power's up than put back ONE DEVICE/MODULE AT A TIME TO TARGET THE FAULTY DEVICE. if nothing worked i'm sorry it's dead.

Good luck!

Jan 04, 2011 | Toshiba Satellite M65-S821 Notebook

1 Answer

Laptop doesn't turn on ...


remove ur battery change ur adapter
if not work there is short inside ur laptop
it is recomended to consult ur technician

Jan 27, 2010 | Acer Aspire 5610-4648 Notebook

1 Answer

Dead ac/dc adapter


if you have mulitey meter test for voltage at end of adaptor the other way is cut out broken part of wire and reconect ( they usely brake at the ends of wire

Nov 08, 2009 | Protron PLTV-32 Television

1 Answer

Dell Inspiron 500m canĀ“t start


Appears to be a dead/dying power adapter.

Require 2nd opinion on this one before making a decision though.

Apr 12, 2009 | Dell Inspiron 500m Notebook

1 Answer

Won't turn on.


yes the lap top can boot up with the ac adaptor without battery .but if there is a problem in its RAM  the memory chip.it will still power on with adaptor but will not go further then that.or the other problem can be its main board getting short in between.get the laptop checked at proper professional repair center before further use as because if you just try to turn it on several times the internal components which are short will get heated and will short many other small components and the reparing cost will get increased.

Feb 28, 2009 | Gateway M305CRV Notebook

1 Answer

I have a compaq presario V5204NR


Try starting it with just the adaptor or just the battery.
If the adaptor is broken it might not properly power-up, same goes for the battery. You'll need to exclude these two first.

If it starts with just the adaptor: dead battery.
If it starts with just the battery: defective adaptor (broken connections, insufficient power etc.)

In both cases you should probably call upon your warranty. That is, it that is still applicable.

If both situations don't work, let me know and we'll think further.

Greetings,

DarkNeogen.

Jun 20, 2008 | Compaq Presario Notebook

1 Answer

Compaq Presario 700 won't power on


These are prone to broken power jacks that short out components on the mainboard. My shop saaw a lot of these come in dead like this and sometimes we could get them going again with a lot of mainboard work, but it seems they keep breaking.

I would save your money for another laptop considering the lousy reliability record these models have.

Dec 22, 2007 | Compaq Presario 700 470024-192 Notebook

1 Answer

No power


Measuring the voltage outputs without applying a load doesn?t eliminate the adaptor as the problem. You also have to know how may amps it can supply as well. To answer you specific question common problems are defective battery, A/C power supply and my favorite?s defective power connector or circuitry inside. When you plug in the A/C power adaptor do any of the LEDs light, up? Does anything happen? Also try removing the battery, plugging in the A/C adaptor and try powering up. If this doesn?t work please supply answers to the above questions plus any other pertinent information you may have. As always please don?t forget to rate the posting but please wait till after we?ve finished.

Jan 16, 2007 | Dell Inspiron 500m Notebook

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