The 990 remote's power button at the top is a power OFF button. Turn on is from one of the source buttons at the bottom. Such as DVD, or Video 1 thru 5, and so forth.
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Main HT <> 976 <> 7200 <> Ultra-X12 <> sapphire ST2 mkII RF/LF <> sapphire SC center
sapphire ST2 mkII SBR/SBL <> sapphire SS SR/SL <> Verizon/DVR <> Vizio M70Q7 <> Oppo UDP-203 <> Amazon 4k Fire TV