Did you read the above posts??? Can't get any more clear than that. Look at the pics, locate that screw. Remove that cover. Use your vacuum if you have a hose attachment, and a can of compressed air. Hold the vacuum hose right over that area and use the compressed air to break the dust blobs loose.
60" Panasonic Plasma ~ BenQ HT1075 / 92" Screen~Onkyo TX-NR3008(Pre/Pro)
Earthquake Cinenova Grande Amplifier ~ Oppo BDP-103 ~ Xbox One & PS4
Musical Fidelity Tri-Vista Tube DAC ~ Monster Cable Signature Series HTPS7000
Energy Veritas V2.3i (mains)~Veritas V2.4i (Front Wides)~Veritas V2.2i (center)
Energy Veritas V2.1 & CAT Tiburons(Surr)~Subs: 2 FTW-21's~Fp10000q clone/2x4dsp