Question about Televison & Video

1 Answer

What should the transformer secondary output voltage be. where do i get a new transformer as mins open circuit

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,368 Answers

That is a great question however without make and model it cannot be answered.

Posted on Dec 06, 2014

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

UndefinedI've checked a Panasonic crt color tv model TC-21fj20p, and I find a hard way to discover the cause of the problem until now.. The set has a good primary voltage supply. No problem with the IC...


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Any short circuit at the horizontal output section circuit will shut down all the secondary SMPS voltages, as there is short circuit protection circuit to all Sony TVs.

Oct 28, 2014 | Televison & Video

1 Answer

Schematic malibu 8100-9120-01


http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

I don't think they post schematic for the transformer
But generally, the primary coil receives 120Volt AC input from household electrical outlet
And the secondary coil produces 12Volt AC output for the low voltage lights.
The 'coil' is a coil of insulated wire wrapped around a metal core. Two coils set side by side create a transformer... when primary is energized, the secondary responds to the magnetic field caused by primary core... resulting in a current that flows on the secondary coil.
Output voltage on secondary coil is determined by the number of wraps and diameter of wire.

Some transformers offer a choice of secondary output... Kichler for example... you can select 12-13-14-15 Volt AC output
This is achieved by the way the secondary coil is wrapped.... for less voltage a wire is tapped at one point on the coil... for more voltage, a wire is tapped at another point on coil. This gives the user several wire choices to connect the lights.

Gene

May 09, 2014 | Intermatic Malibu 300W Power Pack...

1 Answer

Cambridge A5 amplifier replacement transformer


Take the details to JAYCAR or some other electronic shop and see if it is possible to get a new one.

May 05, 2014 | Cars & Trucks

1 Answer

How to identify the matching transformer terminal by means of terminal resistance? and which terminals is for input or output?


Doing a resistance test on a transformer will not give the information you require as you will read very little, if any resistance. What you need to do is an impedance check and that gets involved. If it is a normally wound transformer, not an auto transformer, you can isolate which is the primary and the secondary windings. Unless the transformer is a multi voltage input unit, the primary side will have continuity through only two terminals. The secondary could be more than two if it is a multi output voltage one. If the transformer is a step down, the primary windings will be the thinner wired windings and vice-versa. To actually test the transformer, get hold of a transformer with about a 20 vac output and try it across the two terminals you have identified as the primary windings, you should ge a proportional voltage of the actual output. eg. with 20 vac input and a 2 vac reading at the secondary, the actual output would be 11 vac if your mains voltage is 110 volts. Take care that you are using the transformer at the voltage it is designed for, otherwise it will overheat and burn out.

May 11, 2011 | Kitchen Ranges

1 Answer

My 36xbr800 blinks six times then pauses then blinks six times, this is repeated......


Check the voltage input to horizontal output transformer [LOT]. Check the voltage at the collector point of the line drive transistor. If the line drive transformer primary gets open this type of fault mau occur. Also check the frequency ant the collector point of line drive transistor and the base point of line output transistor. It should be aroung 15625 Hz.
Check and replace the horizontal output transistor if needy. Replacing it is better. The horizontal output is not working or a short in secondary power supply of SMPS or lot secondary, is your problem

Oct 14, 2010 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

1 Answer

Hi i m sanjay i m having sony colour television kv-2782me7 i found some problem in power supply section i m geting low voltages frm secondary output i want 135 ,25 ,8 , and -33dc voltages bt i m geting...


there is a possibility of a shorted turn of the flyback transformer. To test. short B-E together on the horizontal output transistor and connect 60W globe across C-E. measure voltage across lamp - if it comes up to 135v then you have a short either in the horizontal circuit or secondary circuit off the flyback transformer or even the transformer itself.

Aug 10, 2010 | Televison & Video

1 Answer

What are the secondary voltages off the transformer supposed to be?


The secondary voltages of a transformer are stepped down voltages. For example a transformer might be stepping 120 volts AC down to 25 volts AC in the secondary. Which then would be rectified by a bridge rectifier in the power supply and converted to DC Voltage which would be used to bias transistors or tubes and other electronic components. The amount of voltage that is output for use is determined and calculated by the engineers designing the amplifier or pre-amp.

Aug 26, 2009 | Audio Players & Recorders

1 Answer

I have a Pioneer SA_410 Amplifier. Has open circuit mains transformer. Could you advise what its AC secondary output voltage & current are? Regards


I have replaced many thermal fuses in power transformers. Is the primary open?? If so, cut the copper shield on the primary side of the transformer with a pair of cutters and peel back the paper insulation to reveal the thermal fuse. Replace it and everythings OK!! If the secondary is bad there's no hope, of course. Anyway, in the meantime I will research your question and post again very soon. I have several old pioneer schematics and know where to find what I need.

Oct 04, 2008 | Pioneer Audio Players & Recorders

2 Answers

Pyramid 14G power supply


Hi.
It very unlikely the voltage went down. I think you should re measure what the voltage should be yes it 13 volt is after the bridge you wil get this with dual 6.5 volt ac from the transformer, they don't change voltage unless you have a short at the output, and if you did you will blow the transformer, is your reading from 2 wires or is it three wires, output, the center to the end should be 6.5 and end to end maybe 13.8.
I would need to see the schematic to know what voltage you should be getting.
I wouldn't look on a bat transformer but ether, bad bridge or wireing.

I hope this help's

What About Bob

Feb 10, 2008 | Audio Players & Recorders

3 Answers

Amp power


Make shure with an ohm meter that the primary and secondary windings have very little resistance on the main trasformer,then check voltage in trasformer and out from transformer...BIGRED

Sep 02, 2007 | Audio Players & Recorders

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

38 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75157 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Cindy Wells

Level 3 Expert

5339 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...