Question about Videoseven V7 L19PS 19" LCD Monitor

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Power pack is bad

Power pack is bad

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Hello,

We carry the power adapters for that model in our web store, here is the link http://www.ccl-la.com/catalog/index.php?cPath=25 Your model takes the 5amp adapter.

Buddy
Corporate Computer
www.ccl-la.com

Posted on May 01, 2010

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Posted on Jan 02, 2017

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I have a compaq nx7400 and the battery won't charge new battery and new charger.all it says is charging any ideas how to fix this


good day!
did you give it 24hrs to finish a charge?
the PC has a charging chip inside.
new battery from whom>?
the line pack is not a charger its line power pack,
it converts 120vac (or 240 outside usa) to 19vdc.(Or your spec)
the 19vdc runs the PC perfectly with no battery installed DOES IT>
that is the first test. the power pack must be the the correct pack
for:
voltage
current (never lower spec)
and watts.
if not the correct power pack it will now work correctly
the watts can be higher no problem,

if it runs ok on line power no battery
then we try the battery. (give it 24hrs for stubborn old batteries)
if the power pack is ok, it will charge, (spec pack as HP tells you)
if the battery is bad it will not.
if the charger chip in the PC is bad (MOBO BAD) then it will not

testing takes, skills and tools, one tool is a voltmeter
lacking that tool, one can only guess.
what not get your PC repaired by a TECH.???????

here is your HP page, its non trivial, no>?
see that they have 5 power packs used
that is BECAUSE they HAVE many power levels of CPU/GPU
faster rated CPU'GPU need more power.

https://support.hp.com/us-en/product/hp-compaq-nx7400-notebook-pc/1847094/how-to

you never once said
it runs perfectly on AC power only
not once
nor it does not overheat. nor if the fan works and vents all are free of lent.

Mar 29, 2017 | Compaq Computers & Internet

1 Answer

It dosen't works it make a sound like(tic tic tic about 5 second and will shut down)


HDD , if the power is good, is it? full spec voltage.
most FAST 1tb drives need a power pack,
has a 7 year warranty their home page states, so why not use that.
no HDD should make load noises, only ear close whiling sound.
soft ear close tics very very quiet is normal, load , NEVER.
if it makes noise say at arms distances that is bad.
2 causes:
1: the power pack is not plugged in, or missing or wrong pack used? (never run HDD with missing pack or wrong one.
2: drive bad. (bad drives click, when bad)
it can be the drive bad, or the power regulator toasted.

7 years. is a very long time. read the rules on your warr, card.

do not ever block the cooling slots of any HDD, case. ever.
or it will overheat, all fast drives can overheat, easy.
make sure that dont happen.

Oct 02, 2013 | Verbatim Sns1tb Store n Save 1 Terabyte...

1 Answer

My wd hardrive wont power on


look at power pack and look for the polarity diagram. get a multimeter and test the power that the pack is providing and make sure it is outputting what the pack says it is supposed to. if the pack is not at correct voltage, then this is most likely your problem. find another pack (MAKE SURE VOLTAGE AND POLARITY ARE SAME!!!! if voltage is correct but polarity is backwards, cut cord and swap wires before post to change it, or find another pack.) If the power pack checks out, then you need to open the WD case up and inside you will find a standard desktop 3.5" hard drive. most likely sata. remove from case and install it in a desktop computer and see if it will power and mount. if it will then the circuitry in the WD case is bad. If hard drive will not mount or show up then the hard drive is bad. If The WD case is the problem check circuitry for bad caps, transistors and voltage regulators. replace as needed. or just keep the hard drive in your pc as a permanent upgrade.

Sep 18, 2012 | Western Digital My Book Essential 1TB...

1 Answer

Timer dose not work


If the clock motor has gone bad, then buy cheap plug-in timer, set power pack to override, and plug power pack into cheap timer.
Open following link for troubleshoot walk-through:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

Jul 17, 2011 | Malibu Intermatic Inc. ML300RTW 300-Watt...

1 Answer

I have the 300 watt xformer. Lights worked fine for quite a while...now the lights come on and go instantly off, agai and again almost 'flickering" I am positive I have less than 300 watts on the...


Use manual override and see if lights work correctly.
Check that bulbs are each working. If one bulb is burned out, then others will burn out, and the load change can cause power pack to stop functioning.
Always unplug power pack when working on lights.

Power packs do not have repair parts anywhere on the internet that I know.
I checked Intermatic, Malibulights, ebay, amazon, and listened to fixya customers.
Occasionally folks take power pack apart, but nobody reports being able to repair the transformer or timer.

Once power pack goes bad, then it needs to be replaced. Bad news because they're expensive.

'Harry' wrote to fixya with some information.
His timer stopped working so he bought cheap plug-in timer, set power pack to override, and then plugged power pack into cheap timer.
Harry also said his power pack has 5 year warranty and he was negotiating with Malibulights.com for replacement. No word how that came out.

Best I found are tips for next power pack that might save money:
The reason I add tips now, before your power pack needs replacement is some fella wrote fixya.
He bought 500 Watt power pack to replace 300 Watt > thinking bigger was better.
Power pack burned out. Here's why:
a) Match wattage of bulbs with wattage of power pack
Lets say you have fifteen 20 watt bulbs = 300 watts, so install 300Watt power pack
b) Installing a 500W power pack on 300W of bulbs will burn out bulbs and power pack.
c) Replace bulbs as soon as they burn out or other bulbs will burn out and power pack will burn out.
d) When working on bulbs, unplug power pack or it may burn out.
http://www.malibulights.com/guides_support/low_voltage_planning_guide/select_your_power_pack

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 04, 2011 | Malibu Intermatic Inc. ML121RT Low...

1 Answer

Hums but no power to lights


If I understand correctly, you have a Malibu power pack and can not manually turn lights on-off but timer is humming so the timer has power.
1) That eliminates electric circuit as suspect.

2) Try to spark a wire across terminals and see timer has power on terminals.
3) Check that your bulbs are good, because they can all burn out in a hurry if a couple of them suddenly go bad.

4) I have not found repairs and parts for power packs.
After hours of reading manuals, searching Malibu, Intermatic, ebay etc I found nothing.
There are folks who write fixya how they took apart their power pack, but nobody reported fixing a power pack once it goes bad.

5) Best I found are tips for next power pack that might save money:
The reason I add these tips now, is some fella wrote-in to fixya.
He bought 500 Watt power pack to replace 300 Watt > thinking bigger was better.
Power pack burned out. Here's why:
a) Match wattage of bulbs with wattage of power pack
-15 each X 20 watt bulbs = 300 watts, so install 300Watt power pack
b) Installing a 500W power pack on 300W of bulbs will burn out bulbs and power pack.
c) Replace bulbs as soon as they burn out or other bulbs will burn out and power pack will burn out.
d) When working on bulbs, unplug power pack or it may burn out.
http://www.malibulights.com/guides_support/low_voltage_planning_guide/select_your_power_pack

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Jan 07, 2011 | Malibu ML600TW - Low Voltage Power Pack -...

1 Answer

Power outage caused by bad weather. Afterwards, DVD will not come on...no electrical power seems to be incoming. Help?


Hello,

Due to the power outrage caused by the bad weather. The voltage that got into the player was so high that it affected the power pack of the player.

To fix this, you have to get the appropriate screwdriver and unscrew the cover of the player, you will see a board that is attached to the cable that is plugged to the power source.

Get a meter reader, test the components of the power pack and you will notice the part that is burnt.

Replace the power pack with a new power pack and the player will be in good condition again.

Take care.

Jun 14, 2010 | Protron PD-DVR100 DVD Recorder

1 Answer

Where is the reset breaker located on the ml121rt? Lights have been tested and work with an alternate transformer but noting using terminals a & b on the ml121rt.


ML121 does not have reset.
If transformer does not produce 12 volts across terminals A and B, then power pack has gone bad.

If override still works, then might be easiest to buy cheap plug-in timer, set power pack to override, and then plug power pack into cheap timer.

With receipt, power pack might still be under warranty.

Open following link for power pack resources, and links:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

Jun 05, 2010 | Intermatic Malibu 121W Power Pack...

1 Answer

Where can i purchase replacement timers for malibu 300watt power pack trans former. have 14 in yard three have bad timers.


The clock motor has gotten weak and now it is overheating and will not recover.
There are no replacement clock motors.
To buy more time with old power pack, purchase cheap plug-in timer, set power pack to override, and then plug power pack into cheap timer.

For more information on power packs showing replacement trippers, useful links and tips
http://www.fixya.com/support/r8391011-power_pack_not_working

May 23, 2010 | Intermatic Malibu 300W Power Pack...

1 Answer

Power pack creates 'hummmm' in wireless headphones.


I don't think the 12V power pack is the problem. Generally there would be a regulator on the plug pack input to the transmitter (as power packs are notoriously bad at voltage regulation).

My guess is it an 'earth leak' between the TV and the transmitter via the audio lead. Does the powerpack have a earth pin. If so, are you able to plug it into an non-earthed power outlet.

If this isn't possible try removing the ground connection from the audio lead.

It could also be a bad audio lead.

Is the TV mono and the transmitter stereo or visa versa? You may need a mono to stereo lead.

Hopefully something in here will help.



Mar 17, 2009 | Electronics - Others

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