Is there a internal cooling fan in my 861v4? It seems to be extremely hot on sides. Just recently noticed enough to inquire.Runs hot even in standby but really gets my attention when in use. I have owned this unit 8 yrs. Would appreciate any input.. Thanks

M861v4, CECTLX-1 Transport, Legacy Audio Whispers, Legacy Marquis center, Legacy Studios[4], LFExtreme sub-mod, Bryston 7BST's[3] Legacy HC amp's[2] Pioneer Pro1130HD Plasma, Oppo BDP83SE, Toshiba HD-AX2.