Philips 32pfl3505d/f7 tv wont turn on. The answer given says to snip one end of diode 621 but there is no d621 in the place marked. What else can I do?

not an expert on this but be careful of power boards as the source voltage rating. If you purchased say an USA it would be 120V and if your power is 240 V then power board replacement will blow up.
check the voltages coming out of the power circuit board to the various tv . Check you tube as there are some good videos on what sort of voltages come out of the power board. One of my previous postings yesterday has a video you tube link that explains voltages on a different model tv.

Contact the authorized service center for Philips. Never switch On this TV; until it have been checked by the experts at Philips.


Electro help

If the display panel has failed, it will be best to buy a new TV, rather than trying to make it repaired.

You have a shorted Diode in the power supply board.The power supply board has a 110 volt AC cord attached to it. Locate diode D621. It will be near the red, black and white wires attached to the inverter board. Snip this diode on one end and lift it just to clear the board. You may cut the other end and remove (don't have to). Do not try to tear the diode out or you will destroy the board. The TV will operate fine without this diode. Replace your ac fuse (4 AMP, GMA fast blow fuse ). You just repaired your TV. Thanks for asking, Matt of Martins TV.

I assume you are referring to the ac fuse, it is located on the power supply board. Just follow the ac power cord and it should lead you to it. If your set doesn't have a built in power cord, the fuse will be next to the power cord connector.

The video IF section and Tuner section should be troubleshooted. It is a very skilled work. Contact any experienced service technician.

What is status of Led lights on front of set?

Had the the same issue. I was able to repair it by replacing a diode and updating the firmware.

Good day!!!!


That problem is cause of shorted bridge diode or power mosfet..

just see the picture below to see the image of bridge diode and power mosfet..



If you don't have a tools or you have no electronic background you only have to is order the new power supply board..

I hope this solution will be helpful..Thanks for using fixya....

Head back to the store and ask the retailer to demonstrate on a display set to establish whether this is normal or not. If it's not and the set is brand new, I would be looking to have it replaced.