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Re: A/c adapter dead
Hey, If you have tried changing the fuse on the plug and still have no joy, you can buy a replacement as long as the voltage, amps, and connection is the same you wont have any problems...
All the best
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Most common problems with modern LCD computer monitors and LCD,LED tvs are it power supply boards have dead and dying capacitors components parts on the power supply boards.That the board u alway check it first and throughtly for dying and dead capacitors components parts.That the board where the tvs or monitors A/C power cord plug in it.U have all the basic tools also u can do soldering works and understanding basic electronic components.U should by replacing these dying and dead capacitors components with no problems at all.But when u are replacing all these dying and dead capacitors components parts that are bulging up and busting out of it normal cylinders bodies.Replacing these new capacitors components parts alway up the voltages higher in these new capacitors components parts like 5 or 10 voltages higher will stably the power supply board alot better and don't put out to much heat for the capacitors chemicals make up to handle.If u can not do basic soldering works and have all the tools or understanding basic electronic components theories.Tries websites like Ebay.com,Shopjimmy.com to buy a whole new refurbish power supply board for the replacement.
The laptop shuts off when AC power adapter is plugged in. The laptop
works fine on battery power but as soon as you connect it to AC adapter,
the laptop turns off. Possible cause:
1. Power adapter failure.
2. Motherboard failure. Possible troubleshooting steps and repair solution:
First of all, test the power adapter. Make sure the adapter outputs
correct voltage. It's possible that the output voltage is not correct
and the laptop shuts down to prevent the damage. Test your laptop with
another known good power adapter.
If the problem still exists, even after replacing the adapter, most
likely it's the motherboard failure. Replace the motherboard.
Whenyou connect the power adapter into the laptop, does the power LED light up? Ifnot then -
The battery adapter or the adapter's power lead or the laptop's powersocket could be faulty.
Check power adapter's DCplug that connects into the laptop power socket with a multi-meter, the voltageshould be slightly higher than the voltage that is printed on the label on thebottom of the adapter. If the voltage is zero or way below the voltage that isprinted on the label then the power adapter is faulty and needs to be replaced.
If the adapter is OK thenconnect it to the laptop and power it up, then look at the power/batterycharging LED light and wriggle the power plug in the laptop's powersocket. If the power/battery LED light flashes and in a certain position thisLED light stays firm, then the power socket is either faulty or it has a drysolder joint where it is connected to the motherboard.
This can be repaired but itrequires the laptop to be completely dismantled to get at this power socket andrepair. If you cannot DIY then I suggest you get a quote first.
You can find a replacement power adapter from your local electronics store, just bring the dead one with you so you can match up the correct voltage requirements and the bullet connector for the right size. If not try ebay, you will probably find a replacement on that site
The specs for this monitor is a 60 Watt, 12 Volt, 5 Amp power adapter. The voltage must be the same. You can always get an adapter with a higher Amperage rating, but never get one with less, as this can overheat the adapter and damage it. I was not able to locate specs on whether the voltage to the monitor is DC or AC... most are DC. If this is the case, the observe the polarity at the monitor. Power adapters have a positive and a negative... center and outer contact, Make sure that the power adapter matches that of the monitor, else it will not work.
Your description is the external power supply/adapter for a Mag Innovision LT776s 17 in. Flat Panel LCD Monitor. One may be purchased here. Aftermarket/replacements may be found here, here or here. Pls verify that the plug matches the jack and the polarity is correct. Additionally, if it would be a replacement, pls check the voltage and current rating.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.
Check TRC heater voltage (6,3 V., pins 3-4 of TRC socket counting counterclockwise) when picture goes off; if there's no voltage but it appears when picture comes back, look for bad solder joints tracing the circuit backwards to the power supply. Usually, the 6,3 V. tension comes from a single diode-electrolitic cap circuit at the secondary of the power supply transformer.or check this Pin assignment for a monochrome 9-pin D connector are: 1, 2: Ground 3, 4, 5: not connected 6: intensity control (contrast) 7: video signal input 8: horizontal sync. 9: vertical sync. Video monochrome cards usable are:MDA (monochrome display adapter) HGA (Hercules graphics adapter) -Some CGA (Color graphics adapter) and EGA (enhanced graphics adapter) cards that have a switch mono-color can also be used.
if the monitor green led is blinking continuosly
the follow the steps
remove the cable of the monitor which is connected to the CPU and watch the monitor it should show a message ( no input signal or cable disconnected, that means your monitor is OK the problem is with your CPU . try this and let me know
Try another power adaptor.
Check the delivered voltage and go get a universal power adaptor that has a switched for varios voltages and a number of connectors.
Simply match connector to the voltage switch.