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Transformer power supply defective device. What voltage does it have in the secondary?

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6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: MS9700 secondary voltage

I am working on the same situation. DId you first check to see if it isn't the fuse that has blown? Radio Shack has a 4 pack of 2 amp fuses for $2.49 which I think will work. Their catalog number is 270-1064. These as 5x20mm in size (the 1-1/4 x 1/4 inch is way to large) and they are slow blow - designed for this type of household equipment to protect from short circuits and power surges. If you are lucky maybe it is just the fuse. Since I can find no other information about this unit - especially the transformer - I'd check eBay for a working one. If you can get it cheal and it works test the power output with a VoltOhmMeter (VOM) and once armed with the info you can let me know too what the output is . You can then get a new transformer - have 2 working units - can keep or sell one to recoupe your eBay purchase. Just a thought. Hope it is only the fuse.

Posted on Dec 08, 2005

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SOURCE: power supply (transformer)

You should have just one supply voltage on an AM type dishwasher. Find the data plate in one of these places - frame behind RH door, on the control box, under the front cover. The required voltage and phase (1 or 3) will be listed there.

What is the problem with the unit?

Posted on May 25, 2008

SOURCE: Kenwood RXD 501

Do you already check the thermal fuse on the primary side of the transformer

Posted on Oct 01, 2008

  • 441 Answers

SOURCE: power supply problem.no secondary output voltage

I would stick to replacing the whole power supply rather than bits and pieces.

http://store.richspsxparts.com/pl2posubov4.html

The website above sells PS2 power supplies.

If you want to try and replace bits and pieces, you can probably find individual components at Radio Shack... but you would have to be good at troubleshooting and soldering.

Posted on Oct 20, 2009

j2easy
  • 152 Answers

SOURCE: Pioneer SX-203 power transformer ATS1526 secondary voltage???

just a question.1st.. if you don't know what you should have... then what are you going to do... if it's lower or higher ... seems like you should have a print before you go looking...go check at the off and on switch for the standby .. 9v more or less to trip the relay to turn the sys. on... now get a print...or go backwards to the transformer to see if it's blown. or something in between is open

Posted on Dec 11, 2009

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Model "KOT-152UW" The


well inside the unit check for any burn fuses on the power supply area, and into the control board. fuse basically the one will tripped if power surged occurred..

Jun 27, 2008 | Microwave Ovens

1 Answer

I need to know the secondary output voltage of power transformer.


If the primary of the transformer has failed it doesn't follow that the main power supply parts are also faulty. However since the transformer is a safety part you need to replace it with the same thing.

However it seems from this website that transformers are not expensive compared to a new deck, so a look around here might solve the problem.

Mar 10, 2014 | Numark ttUSB Turntable

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Power supply output for Yamaha p4500 secondary output for the power supply so that i could check the voltage


Hi Joel, although we've sourced detailed schematic for this P4500 amplifier, there are no many voltage details on it for manufactures sake. Anyway, mine findings are. Secondary winding on main transformer should supply no less than 2 x 75 volts which makes after rectifying and filtration no less than 2 x 90 volts on capacitors with amplifier without input signal. Also transformer has to be very "hard" , otherwise amp will start clipping before reaching stated wattage on output.

Oct 17, 2011 | Yamaha P4500 Power Amplifier 2-Channel

1 Answer

My transformer is burned.Now I need to know what the secundairy voltages are


Transformers USUALLY don't get burned as they are usually protected by a fuse. This one supposedly uses a 3 amp fuse which should have protected it from getting burned. If you can find a schematic or if you can find the specs on the output amp power supplies we can probably calculate the voltage of secondary. We know only that it is supposedly 120 Watts and uses an 8 ohm speaker. The RMS voltage should be about square-root 120*8 = sqrt 960 = 31V*1.4 = approx 44 volts peak... so you will need to get about +/-45 volts out of the supply for headroom... which will need approximately 34 volts AC given diode drop and droop of filter caps. These are really rough educated calculations from the tiny bit of info we have.
Finding a transformer to replace this matching these requirements will be near impossible without getting device from the original manufacturer OR having your rewound.
I would first verify the transformer is bad (only plausible cause is somebody over-fused it or a winding shorted)... Remove all the secondary loads. Put a 3 amp fuse in AND put a 60 Watt light bulb in series with teh power cord to act as a limiting device to test the transformer... Note that transformers DO have a bit of odor as they are usually impregnated with a varnish...

Jan 11, 2011 | Hartke Kickback 12 Bass Amp Warehouse...

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 is the secondary voltage of power transformer


The schematics do not show the actual voltage.

From the design, the phantom power secpndary should be around 35 to 45 volts AC.

The 16 volt supplies would require a secondary winding that will be around 26 to 32 volts center tapped.

Transformers are quite reliable and unless a voltage is missing, the transformer is likely OK.

The most suspect items are the electrolytic filter caps if the voltage is not the design 16 plus and minus values.

Jun 16, 2010 | Mackie 1202vlz3 12 Channel Mixer

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

Kenwood RXD 501


Do you already check the thermal fuse on the primary side of the transformer

Oct 01, 2008 | Audio Players & Recorders

1 Answer

My Pioneer Receiver Shuts Power OFF within 10 seconds I put it on.


Hi Sharad! Do this maybe of help. Turn the power off. Wait about 10 seconds, then power up again. Get close to the reciever and listen for a click-not from the speakers,from the recievers itself.If you hear a click, you can assume that the power supply is ok for that circuit.This does'nt eliminate the power supply problem but it will do for now.You would have to check both the positive and negative voltages from the power supply to see if both are present or if one or both are missing. This would be dc voltages and the positive voltage must be equal to the negative voltage ,if one is higher than the other, the regulator transistors in the power supply maybe defective. The transformer can be checked for AC voltage before the power supply.You know that the secondary is good because the dial lights. For this kind of problems you better change the regulator transistors with desame number.

Jun 14, 2008 | Pioneer Audio Players & Recorders

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I'm hoping to get some clarification as to whether the below is correct or whether I have been taken for a ride. My LG was picked up by a repair service because it started displaying horizonal lines with the picture hazily in the background. I undertook some research and learned that in most cases of the boards needed replacing and it wasn't a panel issue (usually panel issues are associated with vertical lines). After having my TV for 5 days the repair service advised that it required a new power board and a small repair required on another board. They repaired the small repair and I was going to purchase a new power board however the TV has been returned to me dead. It now doesn't even turn on. The power/channel/indicator lights at the bottom flash on then switch off automatically. After getting consumer affairs involved, I finally received a call from the sub contractor and aside from a number of different excuses given based on my questioning of each explanation, all were contrary to the initial diagnosis discussed with me in early June. I documented the conversation which I summarise as follows: - he contacted numerous times however I never received any voicemail. I asked why - after "numerous phone calls" he didn't send a txt msg to which he replied that he's not allowed to send messages. - he initially alleged that the power board was repaired and video board needed replacing which I was quoted for. I corrected him advising that I was told and quoted for a new power board ($530) and the video board was to be repaired. He then changed his story agreeing with me and alleged that found and apparently quoted me $445 for a generic power board but I declined....Just to clarify, I never received this 2nd quote which is evidenced within the emails and messages I sent after receiving no response over a number of weeks. - he continued to claim that the TV now has panel problems and is now not repairable. - I recited the discussion the owner had with me which was consistent with the information when he provided me with the original quote of $530. He then altered his story replying that "this is a rare case... The owner doesn't know what he's saying". - When I challenged why I was quoted for a power board when he is now claiming there are panel issues, his response was that a new power board was to test if the panel was cracked!! - I replied saying that the TV was delivered to them with horizontal lines and even after testing should've been returned with horizonal lines however is now dead. - his excuse changed again advising that during testing he short circuited the TV and replacing the power board would continue to short circuit the video board..When I again questioned WHY then was i quoted for a new power board (as per the owners conversation with me) he returned back to stating that it was a rare case! - I told him about the screws missing in the back panel to which he commented that "they" wouldn't have put them back in because "they" assumed I would just dispose of the TV. What I find interesting is that this was his understanding whilst I was led to believe the TV was repaired (pending a new power board). It now makes sense as to why the driver who delivered the TV literally dropped it off and ran advising that he didn't know anything. I never received a service report and asked for it again however am yet to see it. Based on this information, can anybody shed light on what they've done to the TV? Prior to them taking the TV the horizontal lines were consistent with had a faint picture in the background and didn't alter at all. They're claiming that they did nothing and the TV - claiming that the reason why the panel doesn't turn on is because it was kept on while they were testing.

Sep 25, 2017 | LG Televison & Video

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