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Sony mex bt3000p sub outputs dead?


You can double check by measuring the voltage on the outputs playing a 60Hz test tone at full volume. You should get around 7-10 volts AC. I have a 60Hz tone .Mp3 link on my site - http://sparky3489.webs.com/settinggainampclass.htm

Apr 25, 2014 | Sony Car Audio & Video

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Konzert 502


Change pre drivers and drivers also change outputs emitter resistors, 0.33, 0.22, or 0.47 ect

Jul 01, 2013 | Audio Players & Recorders

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What is rating of Spin 50 Power Module. Lost mine


Should it be a power supply that outputs AC and converts to DC inside the speaker case, or is it a wall adapter the outputs DC straight to the built in amplifier?
Some speakers have the voltage and polarity for the plug on the back of the speaker where the power lead plugs in. As they are only small speakers of probably a couple of watts it may only need about 2 Amps or less. Higher current is fine as the amp will only use what it needs to work correctly but I would'nt go below 2 Amps.

May 06, 2012 | Labtec Spin 50 Computer Speakers

1 Answer

Why is my Samsung HL55687 turning off on its own.


Hello
Power supply regulator board of your TV has some fault with it. It may either outputs less or over voltage from it to the entire circuit baord to which it has been supplied with. if this happens, the voltage seneor circuit built around the main system control section microcmputer of your TV will sense this situation, and apply a stop signal to the power regulator borad which in turn stops secondary power from it. This process will repeat after some time of instantaneously. The power regulator board should be trouble shooted. It is better to replace it as a card basis, rather than making 'surgery' to it. OK.

Aug 03, 2011 | Samsung Televison & Video

1 Answer

My toshiba laptop wouldn't work well when connected to power source but will function well am using the battery


Laptop shuts off when AC adapter plugged in
Problem description: 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 adpater. Make sure the apdapter outputs correct voltage. It's possible that the outup voltage is not correct and the laptop shuts down to prevent the damge. Test your laptop with anohter known good power adapter.
If the problem still exists, even after replacing the adapter, most likley it's the motherboard failure. Replace the motherboard

Jun 20, 2011 | Toshiba Computers & Internet

1 Answer

My copier is having a system error E-805


E805 0000 Fan failure
only one in this copier>
The fan is faulty. -
Check the fan connector.
- Replace the fan.
- Replace the DC controller PCB.


Switching between full-speed rotation and half-speed rotation is controlled as described below.
1) Full-speed control
When the CPU on the DC controller outputs a fan full speed signal (FAN_FULL), the fan drive voltage switching circuit supplies a +24 V fan drive voltage to turn
the heat exhaust fan at the full speed.
2) Half-speed control
When the CPU on the engine controller outputs a fan half speed signal (FAN_HALF), the fan drive voltage switching circuit supplies a +16 V fan drive voltage to
turn the heat exhaust fan at the half speed.

E805-0000 (Main body fan error)
When the cooling fan of the main body starts, the fan lock detection signal (FAN_LOCK) has been held at the "H" level for longer than the prescribed time.

also check your low-voltage power supply

In case of a problem or clarification or my solution was insufficient, don't hesitate to post me a reply.

If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

May 31, 2011 | Canon iR 2016i Black and White Copier

1 Answer

I I HAVE A philips 42pf5320/10 IT TURNS ON GREEN LIGHT IS ON BUT THERE IS NO BACK LIGHT, NO ONSCREEN DISPLAY, NO PICTURE.


Hi.

If your TV is LCD this are the procedure/steps to fix your problem.

Half picture on top of the screen, and the bottom half is black it means the back-light of your TV on the bottom is not working.


This are the step on how to find the trouble of your TV:

First, you have to remove the back cover of your TV to see the internal parts inside.

Secondly,after you open the back cover and the internal parts will reveal.Try to find where is the power supply board.It is usually connected to the power cord and it have a AC input that connects directly in you outlet.
It look like this:
nineng_4.jpg
This image is not exactly looks like your power supply because you don't indicate the brand name and model # of your TV.

Thirdly,plug-in the power cord then power it ON and be careful,check the output voltage of the power supply using a multimeter (range in DC) ,if it is have a 24vdc for the supply of inverter board.It is the board that gives a high voltage to the back-light of LCD TV.

Fourthly,if the power supply got the reading of 24vdc it means the power supply is good.Then try to check the input voltage of the inverter if it is have 24vdc.

The inverter looks like this:
nineng_5.jpg
This image is not exactly looks like your inverter board because you don't indicate the brand name and model # of your TV.

Fifthly, if the inverter have a input voltage please check the output voltage of it.It should have 500vdc so be careful to perform the voltage data in that point because it has a high voltage or hot area.

NOTE: if you don't have voltage reading on the input of the inverter board (24vdc) and the power supply an output of 24vdc,please check the wire that connect to each other.

Sixthly, If the inverter board have a reading of 500vdc on all outputs connectors (it is usually have 4 to 6 outputs).Your back-light lamp at the bottom are busted replaced it.
Or if your inverter board doesn't have a output voltage replace it.

You can buy the parts here:
Just click this direct link. http://www.electronica-usa.com/Merchant2/merchant.mvc?Screen=SFNT&Store_Code=EU

Or here:http://www.shopjimmy.com/

And also to eBay.com at your search engine.

Reminders:
If you don't have any basic knowledge about the electronics and testing equipment please don't attempt to do this steps.Its better to send it to the qualified technician or on the authorized service center of your TV.

If this solution will help you to fix your problem,please don't forget to vote and rate my answer.Thank you and good luck

May 08, 2011 | Televison & Video

1 Answer

Half picture on top of the screen, and the bottom half is black


Hi.

If your TV is LCD this are the procedure/steps to fix your problem.

Half picture on top of the screen, and the bottom half is black it means the back-light of your TV on the bottom is not working.


This are the step on how to find the trouble of your TV:

First, you have to remove the back cover of your TV to see the internal parts inside.

Secondly,after you open the back cover and the internal parts will reveal.Try to find where is the power supply board.It is usually connected to the power cord and it have a AC input that connects directly in you outlet.
It look like this:
nineng_4.jpg
This image is not exactly looks like your power supply because you don't indicate the brand name and model # of your TV.

Thirdly,plug-in the power cord then power it ON and be careful,check the output voltage of the power supply using a multimeter (range in DC) ,if it is have a 24vdc for the supply of inverter board.It is the board that gives a high voltage to the back-light of LCD TV.

Fourthly,if the power supply got the reading of 24vdc it means the power supply is good.Then try to check the input voltage of the inverter if it is have 24vdc.

The inverter looks like this:
nineng_5.jpg
This image is not exactly looks like your inverter board because you don't indicate the brand name and model # of your TV.

Fifthly, if the inverter have a input voltage please check the output voltage of it.It should have 500vdc so be careful to perform the voltage data in that point because it has a high voltage or hot area.

NOTE: if you don't have voltage reading on the input of the inverter board (24vdc) and the power supply an output of 24vdc,please check the wire that connect to each other.

Sixthly, If the inverter board have a reading of 500vdc on all outputs connectors (it is usually have 4 to 6 outputs).Your back-light lamp at the bottom are busted replaced it.
Or if your inverter board doesn't have a output voltage replace it.

You can buy the parts here:
Just click this direct link. http://www.electronica-usa.com/Merchant2/merchant.mvc?Screen=SFNT&Store_Code=EU

Or here:http://www.shopjimmy.com/

And also to eBay.com at your search engine.

Reminders:
If you don't have any basic knowledge about the electronics and testing equipment please don't attempt to do this steps.Its better to send it to the qualified technician or on the authorized service center of your TV.

I hope this solution will helpful.Thank you and good luck.

May 01, 2011 | Televison & Video

1 Answer

Error code sc490 on aficio sp c410dn


SC490 High Voltage Power High voltage output error Error signal is detected for 10 times consecutively. One of the DC bias outputs for each PCU is shorted or one of the transfer belt bias outputs for [Y], [M] and [C]. • Power leaking • Defective connection • Disconnected cable • Defective PCU • Defective High Voltage Power 1 1. Replace the High Voltage Power 1. 2. Reset the cables and components. 3. Replace the PCU.

Feb 11, 2010 | Ricoh Aficio SP C410DN Laser Printer

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