Question about Philips AJ3010 Clock Radio

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I accidentally plug-in the 100V line to 220 volts and was damaged

I began to troubleshoot it and i found out that all Voltage regulators are ok and diodes are also Ok, I would like to ask a schematic diagram for me to easily check the circuit

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6ya6ya
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SOURCE: directv h20 receiver has low volyage to the lnb.

Check inside the receiver for a defective LM317 IC or a TIP42C transistor, but before that you should check for proper voltage from the power supply to that IC.
LM317/TIP42C control the switching of voltages that power up the LNB, you should be getting 14 volts for vertical channels and 18 volts for horizontal.
Good Luck.

Posted on Mar 08, 2008

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srinivasb81
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SOURCE: Will not turn on

Hai,
This is because of Bridge problem in power section in the player, thats why its not turn on,
There is diode issue in the power section its called bridge rectifier, so please check with this.


Posted on Mar 20, 2009

SOURCE: accedentaly plugged in 220 volts

POP goes the power supply board, wow !!!

Posted on Jun 03, 2012

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How to test the electrical system of the generator for free


Ez test to determine if stator wiring is ok. This test works on generators that have two sets of 115v plugs and 220v plug. Use a 12v, 1amp ac power supply ( smaller ac power supply should work ok ). With generator not running, apply 12v to one of the 115v outlet plugs. Now verify 12v output voltage with meter at another 115v outlet on generator. Also verify that there is about twice the voltage at the 220 v outlet plug (should be about 20v - 24v) . If the adjoining 115 v outlet plug has no output or very little voltage or if the 220 volt plug has no output, most likely stator is damaged or breaker is off. If the stator is shorted voltage reading will be very low and power supply will heat up. If stator is open, there will be no voltage at second 115v plug or 220 v plug. If voltage is ok at the other outlet plugs as per test above then most likely problem is with voltage regulator, or brushes not making contact or armature winding open or just needs to be energized. Unplug the 12v power supply after test to prevent it from overheating. Most generators have two 115v windings that together power the 220v plug. When you energize one of the windings with the 12v power supply, the second 115v winding will be energized also and give you a voltage reading about equal to 12v. You will not damage the generator with this small voltage being input thru the plug. Good luck

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1 Answer

Hor to fix 100v refrigerator accidentally plugged to 220v outlet


You need to replace the new voltage regulator b'cause the preveous one is burnt as you plugged the higher voltage

Aug 17, 2012 | Sanyo Refrigerators

1 Answer

The generator produce onely 73 volts ac on the 120 volts plug and 146 volts ac on the 220 volts plug . what could be causing this problem


Check all wiring and fuses associated with you voltage regulator if they check ok, find a way to adjust your voltage regulator replace it. Make sure the unit is running at 3600 rpm as well and making 60 hz.

Jul 10, 2011 | Coleman Powermate Premium Plus 6250W...

1 Answer

I bought a Line6 M13 stompbox in the US and brought it across to South Africa. When i plugged it in using a Line6 PX-2 power adapter and an international converter....the pedal worked fine but started to...


The PX-2 should work fine as long as you are on 120 or 110 volt service. If you have 220 volt power, you have done damage... likely to the PX-2 and probably to the power input circuits of the M13.
If you are on 220, then you need to use a TRANSFORMER type voltage reducer before going to the PX-2. If you are on 220, then replace the PX-2 and take the M13 in for service replacement of parts where the power comes in and is regulated.

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1 Answer

My Panasonic S35 DVD player was plugged in to 220 volts instead of 110 volts. The problem is just after replacing two (2) capacitors, diode, and fuse. the unit was accidentally plugged in again to 220...


If the unit is designed to operate at 110V AC, then plugging it into 220V or more without the appropriate multi-current (240-110V) transformer and relative voltage switching circuitry to the PSU (to accommodate the higher current load) is very dangerous. Because of the excess voltage applied, the DVD player's power supply cannot handle this, is basically destroyed, and therefore it would be uneconomical/expensive to repair; although due to the possible extent of the over-voltage damage, I doubt it would be repairable.

To put it bluntly, the whole unit would be a write-off, as the damage to the power supply may have also compromised many of the components on the motherboard. It wouldn't be cost-effective to replace every single part in the circuit. You most likely will need to buy a new player (or find a similar used working one which is not damaged for a cheaper price if that's what you want) and if you do, check to make sure it is a mulit-system/multi-voltage model (can operate between 110V and 240V AC, and is capable of doing so SAFELY) to prevent a disaster like this from happening in the future.

The risks of electrical incidents like this are far too great to even contemplate. One can be lucky sometimes.

Mar 06, 2011 | Panasonic DVD-S35 DVD Player

1 Answer

I cant plug my 120v input vamp2 power adapter into a 110v output voltage regulator its dont works


I don't understand why you are plugging this into a 110 volt regulator.. If by chance you are trying to run this from 220 volt power, you DO NOT use a regulator or a converter intended to run hair driers and appliances. You need to use a step-down transformer from 220 to 110 or 240 to 120.
The V\Amp2 is a switching regulator and it will NOT like to be run from another switching regulator such as found in those cheap appliance type convertors.

Here is the type you need: http://www.world-import.com/tc-100a.htm

Jan 07, 2011 | Behringer VAmp 2 Power Supply

1 Answer

My window air conditioner will not start. First time installed this season.


Make sure you have the correct line voltage at the plug.Some are 110 volt, some are 220 volt.

Here is the kicker...220 volt can be plugged into 110 volt plug at the wall with no damage.110 volt cannot be plugged into a 220volt socket at the wall without sustaining damage.

You can find out the required operating voltage of the a/c by reading the nameplate data printed on the a/c specs somewhere on the machine(not the housing}.

The plug end from the a/c should clue you into the proper machine voltage if you purchased a brand made in the USA.If it came from some third world country like Bangladesh, for example, the cheap bastards probably didn't wire the pigtail in at time of manufacture cause they are cheap ********.

You get what you pay for these days.

Call an electrician to chech it out.Don't be like the Bangladeshians!

Aug 02, 2009 | Haier Heating & Cooling

1 Answer

Accidentally conected it to 220 volt outlet


Hi, damage should be limited to low voltage power supply, I would definitely have a tech take a look at it, video-tek

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Accindentally pluged it to 220 volts instead of 110 volts


hello , i suggets you replace the power supply with a 110 v input boerd .
or do this if the damage is big replace the all sytem with a new one then get a voltage step down ie 220 to 110.

thank you

May 06, 2009 | Yamaha DVR-S120 DVD Player

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The power supply of my pioner dvd was burn


Hi

check all semiconductor in the power board and look for a shorted and open parts! then replaced the defective parts.

Thanks!

Dec 05, 2008 | Televison & Video

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