Question about JVC RV-B90 Boombox

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NB 90 will not power on after turning off unless i unplug it.

I bought my nb 90 off ebay and it seemed to work great until i turned it off. The stand by light stays on; however it will not power on again until i unplug the unit. This even happens if i try to turn it on with the remote. Could this possibly be caused by a fuse shortage of some fashion?

Posted by Anonymous on

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Yes a little groove under to big batteries. AA i think

Posted on Dec 12, 2012

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Posted on Jan 02, 2017

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SOURCE: Power On Issue

Me too. Do anyone know where the backup-batteries is placed in the boombox?

Posted on Nov 08, 2009

avpowerstn
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SOURCE: JVC boombox RV-NB 1 stopped working

Its the fuse (1.25A 250V slow blow) remove 12 allen screws on side panels, six each side (the very top and bottom allens are
for comestics) remove the woofer screws (just the two of the four)
that are facing the front panel.remove the 12 screws in the rear panel. 6 along the top, 4 along the bottom, 2 in the middle.
go to Radio Shack, Get a 2A 250V slow blow fuse (they dont have a 1.25A) Part# 270-1064 (4-pk about $3.00) reinstall & ROCK !!!!

Posted on Nov 08, 2009

  • 517 Answers

SOURCE: Sometimes when I plug my

Good day!!!!


That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

Posted on Sep 15, 2011

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1 Answer

I just purchased a toshiba mini notebook NB 505 it has about 5 hrs. of time on it. Went to turn it on the other night and when it starts up the screen was lite up but nothing else. I can not shut down...


It happens when the NB was not properly shutdown, NB was turned off due to battery drained and left idle or worst there is a problem with the mother board. You may try this; Turn OFF the laptop, remove the power sources (ac adapter and battery). Without power sources, hold power button 10 secs. Put back the power sources, and power ON the NB. If the laptop will not boot by doing this, take it back from the reseller for replacement.

Mar 23, 2011 | Computers & Internet

1 Answer

Brand new computer-keyboard does not work


Hello,


You may try this; Turn OFF the laptop, remove the power sources (ac adapter and battery). Without power sources, hold power button 10 secs. Put back the power sources, and power ON the NB.

Have nice day :)

Mar 13, 2011 | ASUS 90-A4C1K1000 Keyboard

1 Answer

Keypad hang


Turn OFF the NB, unplug the ac adapter and remove the battery.
Without the battery and ac adapter, hold the power button for 10 secs.
Put the power sources back and turn ON.
Check if the keypad is still not responding.

Feb 27, 2011 | Computers & Internet

1 Answer

My keyboard can't use after charging


1.Turn OFF the laptop, unplug the AC adapter and remove the battery.
2. Without the battery and AC adapter, hold the power button 10 secs.
3. Put the power sources back and turn ON the NB.
4. Test if the keyboard is already working.

Feb 27, 2011 | Toshiba Tecra TE2300 Notebook

1 Answer

What exactly does the anl nb/anl button do on my cobra 29 wx nw st


ANL stands for "Automatic Noise Limiter" and NB stands for "Noise Blanker".

The ANL gets rid of a lot of interference noise caused by mechanical noise from motors and other electronic components in a car.

It also gets rid of noise from other sources of interference.

The NB is for extreme cases of noise, but can slightly lessen your receive sensitivity.


Basically both functions help decrease interference noise.

Nov 24, 2010 | Cobra 29 WX NW ST 40-Channels Base CB...

2 Answers

My Acer Extensa 5420-5687 laptop did not boot already..if i turn on the power button it will turn on but after a few seconds it will turn off automatically. What is the problem of that? I hope that i can...


First thing is make sure the Notebook is not Overheating if, the NB is hot turn it off until the unit is back to normal room temperature and the check if the fan of the NB is functioning and make sure your using it on a flat surface and if the NB is overheating or the fan is not working then BIOS update will help resolving the issue

if the issue is not due to overheating or above steps does not help to resolve the issue then Boot the NB to BIOS then check if the NB turn off Automatically in BIOS screen as well then if it does then its a Hardware issue you should contact the manufacturer

Note: while doing the above steps make sure the ac Adapter is connected to the NB

Aug 23, 2010 | Acer Extensa 5420-5687 Notebook

2 Answers

My hp pavillion was no power, please give an advise.


There could be a problem with the battery. A fast check to determine whether you have a problem with the power adapter, power cord or the laptop's battery is to turn off the laptop, remove the battery, connect the power adapter, turn on the laptop & see if it works.
If the laptop works directly from the power adapter with the battery removed, then the power adapter is good. In this case we can suspect that the battery is defective & needs to be replaced.
To verify this, unplug your laptop & try to run it on battery only. Watch out how long it will stay on (if at all). If it didn't work on battery alone, or worked but for a very short time, then your battery is defective.

Apr 19, 2010 | HP Pavilion dv1000 Notebook

2 Answers

When i turn on my Toshiba NB 200 the no Display


If you have another display, plug it into the laptop, enable "external display" and check if the computer is working fine. If so, The inverter from the laptop needs to be replaced.

Aug 30, 2009 | Toshiba Satellite A205-S4617 Notebook

3 Answers

Fit my Canon NB-4L Battery


Canon nb-4l battery pack canon 100 percent compatible with you canon nb-4l camera battery. I bought two canon nb-4l battery from http://www.camera-battery.co.uk/canon/nb-4l.htm two weeks ago, I felt very surprised, because it fits nearly as good as the original battery.
702706b.jpg

Feb 06, 2009 | Canon Cameras

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