Dc voltage - Computers & Internet

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Posted on Apr 29, 2013

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
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Goodluck!

Posted on Jan 02, 2017

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How to measure the voltage on TV

Voltage measured on DC scale, black cable multitester / avometer put on a negative path or can be slipped on the silver wire in the tube that is not disposable wrapping.

Next, measure the voltages are available:
• For 180v voltage can be measured on the positive pin elco (10uf/250v) in PCB RGB tube.stick pin red wire multitester

• Voltage 110v for TVs 14 "-21" and 130v for 25 "-29" in the B + FlyBack Transformer (FBT), find the path there is elco 100uf/160volt. measure on a positive foot elco.
• For 12volt voltage, please measure at the foot of the right edge of IC 7812.

1. For voltage 5V, please measure the right foot of IC 7805.
2. For voltage 33v, please search at the foot of VT in tuner.
3. To measure 90v-300v, scale use DCV 250.
4. To measure the 12v-40v, use a scale of 50 DCV
5. To measure the voltage of 1V-9v, 10 DCV-scale use.
6. How to measure the voltage on the yoke and in plyback is;
• From the yoke horizontal = Fcc 110v DC, 1000 V. AC voltage can be removed with a red plug in output and in use as dB meter.
• From the yoke pertikal 24 DC current model, except for disposable coupling C = 1 / 2 Fcc. While it could be IC 120V AC (with dB meter)
• At Fcc FBT kolector; 110v DC, AC voltage = 1000 V..
• At Fcc FBT filement / heater = 5V-5, 5V AC.
• In the FBT 20-32k anode voltage V measured with 40kv HV probe is added to the multitester 1000 V. DC.
• Voltage others depending on model and type of TV. 180v out there (for RGB) directly from the regulators, transformers, Video Amp taken from FBT.
• There are 24V and 46v vertical FBT, also 12-18V depending on brand and type.
• Voltage 600 V DC and focus around the screen 400v DC.

Thus tip n trick from me (AGUS YUSTIARA ), hopefully useful.

on Aug 16, 2010 | Televison & Video

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Jun 24, 2013 - If the device has a DC input of +12V / 5.4A, get an adapter that has a DC output of +12V / 5.4A. If you have a universal adapter, make sure it has the proper current rating ... Ideally, you'll have the same voltage, current and polarity on your ......or hdmi on my laptop .can you say what's the reason for the same.

How to select an AC to DC power adapter - ApogeeKits

An explanation of regulated versus un-regulated AC to DC voltage power adapters. ...voltage output power adapters and how to use this information to select the right one... Some (more expensive) DC voltage output power adapters have voltage ... Care should be take to ensure that the maximum input voltage of the load ...

AC/DC Power adapter ' Laptop Parts 101

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Dec 26, 2008 - It's very important to use the right adapter for your laptop. ... Polarityon the new adapter's plug must be the same as on the original ... AC/DC power adapter voltage and amperage ..... I have purchased an non-hp dc-dc convertor (150W), 12Vinput, 19V output. .... So the cable component has to be replace.

Determining Proper A/C Polarity - Galen Carol Audio

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Jan 10, 2016 | Computers & Internet

Wht kind of current comes out?

The computer's switch mode power supply produces DC (direct current) electricity.

Nov 05, 2012 | Computers & Internet

Ignition system wiring, voltage, regulator how to repair

Hello, again, again Bridget. First I sent you explanation of the ignition system and I gave you my best guess---ignition module on your 1994 Plymouth with V6 3.4 L engine.

As far as voltage regulation goes there isn't any external devise to do this. This voltage voltage regulation take place inside the alternator after the three phase AC voltage is turn into none regulated DC voltage. Now this DC voltage goes thru a voltage regulator that built into the alternator where the output DC voltage is 13.8 to 14.1 DC Volts. Now, the alternator is regulated for current by the it wire windings in the alternator. Larger the copper wire the more current the alternator will produce. GB.....stewbison

Oct 17, 2011 | 1994 Plymouth Voyager

Yukon 2.5 x50 nvrs tactical night vision rifle scope, works fine but making a strange processing noise when on?

Hello, don't worry about it. It is HV to the image intensifier tube. The battery voltage goes through control circuit then to ccfl inverter (here is were dc voltage is switch on and off and switch dc voltage is step up by toroid coil that has two input and only two out puts). By impulsing the coil with two different switch dc voltage on the input this make the current lag the two different phase voltage by 90 degrees. Here is where the strange noise is coming from. The toroid coil is encased in iron case and if half of this iron case is loose, it makes case vibrate so the noise.

Now, the voltage come out of the toroid coil is switching dc (one could call it AC because that what AC voltage is, it switch between positive to negative) this voltage is about 300 to 900 switching DC voltage. This voltage will be applied to a 1/2 wave voltage multiplier (this voltage multiplier with have anywhere four four stages to 10 stages depend on what the input voltage to multiplier is.

Low the voltage out of the ccfl inverter the more stages the multiplier will have.

Now, the voltage multiplier will double the voltage per stage to need image intensifier tube voltage of 12000 to 45000 volts---DC switching or AC what ever one wants to call it. This voltage will bit you but it doesn't have a lot current associated with it, the current would be in the 10 to 15 ua (micro-amps) 1/10X6 amps.

Now, you know. GB...stewbison

Sep 24, 2011 | Yukon Optics

What voltage and polarity do the ACS-5 speakers require?

Computers always use DC voltage. Computer speakers receive DC voltage from the computer.
DC voltage has a Positive and Negative polarity.

In the power jack of the speaker, the Center pin is the Positive connection. The outer shell is the Negative connection.

Center hole of the DC adapter plug - Positive.
Outer shell of the DC adapter plug - Negative

Voltage 5 Volts DC.

In case you need it,

http://support.dell.com/support/edocs/dta/acs5/

Nov 29, 2010 | Computers & Internet

What is the proper DC power supply voltage for an

Power supply details are as follows:
Input voltage/frequency 100 Vac, 50/60 Hz (Japan)
120 Vac, 60 Hz (North America)
230 Vac, 50 Hz (Europe)
Output voltage/watt 12 V DC, 15 watt maximum

Mar 12, 2010 | Visioneer OneTouch 8100 Flatbed Scanner

Converting ac to dc voltage

You need to transform the voltage to a level that you require, then 'rectify' your voltage to DC, with a bridge rectifier. There are many different types of rectifiers for different uses. Look on the web for electronics, bridge rectifiers.

Jul 10, 2009 | Dryers

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