
Installation Guide
Monoprice 3 Way Adjustable Flat Panel Wall Mount
Model: MCD-403B (PID# 3006/3323)
VESA 50/75/100mm
Max Weight: 22lbs/10kg
Package Contents:
Please review before starting to make sure no parts are missing. If any parts are missing, please
contact us to have replacement parts sent to you.
A
B
C
D
E
LG Retention Bolt
H
X 1
Sm Retention Bolt
X 1
I
Retention Nut
X 1
J
F
6x60mm
Lag Bolt x 3
Concrete Anchor
X 3
G
X 4
“C” Bra ket c
X 1
N
Arm Assembly
X 1
Retention Knob
K
X 1
M4x10mm
X 4
L
M5x10mm
M
Fore Arm Shell L/R
X 2
Display Mounting Plate
X 1
Wall Plate Shell L/R
X 2
X 2
Short Arm Shell L/R
Introduction:
Thanks for purchasing the Monoprice PLB-133 adjustable flat panel display wall mount. The PLB133 is designed to be attractive, durable, easy to install and provide you with years of reliable service.
The mount can be installed on to solid concrete or wood studs. Please review this entire manual
before you begin. If you are not comfortable doing the installation yourself, please consult the advice
of a professional installer.

Installation:
Step One:
Concrete:
1a. If you are installing on to concrete or solid brick, you will need to use the included concrete
anchors (part B). Use a level to positions the wall plate of the arm assembly (part J) at the place on
the wall you want to install the mount and make sure the plate is vertically straight. Holding the wall
plate to the wall, use a pencil to mark the 3 points the mount will attach to the wall. Drill 10 mm pilot
holes approximately 60mm deep. Insert the anchors into each of the holes. Line up the wall plate
with the pilot holes and attach the bracket to the wall with the lag bolts (part A).
Wood Studs:
1b. If you are installing on to a wood stud wall, you will need to use a stud finder to locate the location
of a stud in the wall. Mark your stud. Use a level to positions the wall plate of the arm assembly (part
J) along the stud and make sure the plate is vertically straight. Holding the wall plate to the wall, use
a pencil to mark the 3 points the mount will attach to the wall. Mount directly over a stud. Never
mount directly to unsupported drywall. Drill 3 mm pilot holes approximately 60mm deep into the stud.
Line up the wall plate with the pilot holes and attach the bracket to the wall with the lag bolts (part A).
Figure 1a
Figure 1b

Step Two:
Assemble the display mounting plate assembly. Connect the display plate
(part K) to the “C” bracket (part I) and insert the small retaining bolt (part D)
through the front of the mounting plate, into the hole in the “C” bracket and
secure it with the retaining knob (part F).
Step Three:
After having prepped your flat panel display by removing any table top
stands as instructed in the manual for your display, attach the display
mounting plate assembly from step 2 to the back of your display.
Make sure it is in the correct orientation. The square shaped hole on
the “C” bracket should be on the top. Use four of the machine screws
included with the mount (Part G or H) or included with your display to
attach the plate to the back of the display. If none of the included
screws fit, contact the manufacturer of your display to find out the
appropriate size needed and purchase them at a local hardware store.
Step Four:
Have some one assist you by lifting the display with the attached
display plate assembly up to the extension arm on the wall plate
assembly from step one. Attach the “C” bracket to the end of the
arm and fasten it with the large retention bold (part C). Lock the
bolt in place with the nut (part E). When fastening the nut, so not
apply more than 17.6 lbs of tork.
Step Five:
Snap the outer plastic shells onto the wall plate and arm frame and you’re done (parts L, M & N).
Figure 2
Figure 3
Figure 4
Congratulations! You’re Done.
Figure 5