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Hello and sorry you're having problems. Tim is no longer with the site- but I will be glad to help you.
First, the issue you're having is loss of audio processing in the Mainboard- which is what extracts audio from the AV and HDMI sources and then sends the sound to the internal amplifier. The fact that headphones don't work either, means that the fault is in the line level stage. The fix for this is to replace the Mainboard in the set. However the model number you posted is not valid and does not show up in any searches. Can you please double check the model number and postback?
Thanks, ***** ***** different than the model number you posted- you added a "6" after the 9704- which is why I couldn't find it. Looking at that model now.
Initial question you posted this:
46PFL97064H/12 Note the absence of the "6" in the ACTUAL model number.
Okay, now that Mainboard is not available anywhere in the US, and in fact, there was only one supplier I could find it at, which is at the link below. If you're looking to repair the TV yourself, this is the board that you need to replace:
There are no US domestic sources for that board I'm afraid. Alternatively, if you're not looking to repair the set yourself, then you could contact a local shop at the link below and see if they have any pull in trying to source the Mainboard (part number 310432859522 PHILIPS).
If you need further assistance let me know. Please do not forget to click the 5 STAR RATING, at the top of the page for my efforts. It is my livelihood and you can follow up at any time if needed.
Do you need further assistance with this?If not, could you please click the 5 STAR RATING, at the top of the page for my efforts? It is my livelihood and you can follow up at any time if needed.
Okay, that's no problem- thanks for the reply.