Walker Edison Furniture W70C25SDES 70 Wood TV Console w/ Sliding Doors - Manual (Page 13)

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Secure top panel (1) to panels (3,6) using cam locks (D). Tighten cam locks (D) with a screwdriver.
Secure top panel (1) to panels (4,5) using cam locks (D). Tighten cam locks (D) with a screwdriver.