Question about Sony Televison & Video
Your remote control's internal button contacts on the circuit board may just need cleaning. If there is some residue, or debris, or oxidation inside on the surface of the circuit board it may be interfering with the correct operation of only a few buttons in particular.
It does not sound like a battery connection issue or a bad transmitter since most of the other buttons work fine.
You can try unscrewing, and disassembling the remote control in order to access the contact pads on the circuit board.
First check if there are any screws holding the remote control halves together. Be sure to open up and look inside the battery compartment as well. Once all the holding screws are removed, then gently pry the two halves of the remote control apart.
Use a cloth or a paper towel and some Isopropyl alcohol to clean off the surface of the circuit board and the underside of the button pads. Now check the circuit board for any signs of excessive wear, cracks, or oxidation on the copper contacts. You can use a pencil eraser to gently polish the copper contact pads on the circuit board if necessary. Once the unit is cleaned, just reassemble it and replace the screws and then try it out.
If you did see any significant damage inside or cracks in the circuit board, then you are probably going to have to eventually replace the remote. A wide variety of universal remotes to suit your needs and budget are available at any decent electronics store.
Please comment back here to this page if you have any questions, or just require further general assistance and I will respond as soon as I see it.
Thank you very much and good luck.
Posted on Apr 04, 2011
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Posted on Jan 02, 2017
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