20 Most Recent Kenwood (PD56-10AD) Power Supply Questions & Answers

Make sure you have SOME load on the supply.A supply of this capabilty will often have SOME leakage current so a small load might be required.

This is a wide range supply and MAY have a switching pre-regulator followed by a pass regulator. It may be this pass regulator has shorted the transistor.

If the minimumj load doesn't pull it down, service is required and schematic will be imperative.

I could not find it free(the manual) but if you want to buy one ($23) it is available here. Hope this helps.

http://www.manuals-in-pdf.com/advanced_search_result.php?keywords=Kenwood+PD56-6D+service++manual&forward=plist

For resistors details, see page 10 of service manual ManualsLib - Makes it easy to find manuals online!

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How this unit accesses the Internet is via a smart phone you provide that is in Portable Wi-Fi HotSpot Mode. After setting your phone up to serve as a HotSpot, do setup the Kenwood dnn990hd wifi's wifi as you would a smart phone's wireless connection. If you need more instructions on how to the above, please provide the make and model of your smartphone, as the navigation to the settings have changed from version to version in Android and other OS's are just plain different altogether!~

The Possible Causes of the errors are:- Wiring Mistake or Wiring Problem Bad Sensor or not work properly Bad PCB Board on your ac The PCB computer board that controls a mini split is having a problem seeing the correct voltage from the sensors it uses. The wiring and many sensors need to be checked to see if they are malfunctioning. Indoor room temperature sensor. To troubleshoot a unit the location of the many sensors will need to be known. This information can be found in the manual for the unit and depending on the manufacturer may be available from their website. It is also possible that the PCB board has gone bad. If after testing all the sensors and wiring and they show good this usually points to a bad PCB board. Another thing that can cause problems is a unit wired wrong or wiring that has a short or open. Most often these errors require a technician and will be outside the average home DIY job. http://www.hvachowto.com/2017/06/15/e4-e5-e6-f1-f2-f3-error-codes-on-a-mini-split

Try these steps...click the link

http://www.tech-faq.com/how-to-reset-a-kenwood-security-code.html

Go to the link and call them. Rubber drive belts at Ken Electronics Wholesale Retail Electronic Parts...

https://www.hifiengine.com/manual_library/kenwood/m-a300.shtml You need to make an account for their website, but they have a detailed service manual. Probably the internal fuse is blown.

First thing to do is check the unit with an external meter to see if the internal ones are accurate.