QMP1MB - TV Stand Chief - Free user manual and instructions
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| Product Type | Mobile TV Stand |
| Brand | Chief |
| Model | QMP1MB |
| Maximum Weight Capacity | 150 lbs (68.04 kg) |
| Height Adjustment | Yes, via knob and inner column |
| Wheels / Casters | Yes, with brakes on back wheels |
| Cable Management | Yes, front flap and openings with snap-on covers |
| Legs Included | 2 legs (A) and (B) |
| Upright Included | 1 upright (E) |
| Cross Bracket Included | 1 cross bracket (F) |
| End Caps Included | 2 end caps (D) |
| Hardware | Button head cap screws, washers, hex nuts |
| Tools Required | Phillips screwdriver, open-ended wrench, hex-key, security wrench |
| Material | Steel |
| Installation Type | Freestanding on floor |
| Use | For AV equipment and accessories |
| Safety Features | Wheel brakes, stability warnings |
| Maintenance | Check and tighten caster hex nuts occasionally |
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USER MANUAL QMP1MB Chief
INSTALLATION INSTRUCTIONS

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Technical line drawing of a vertical support structure with two horizontal legs and wheels (no text or symbols)Mobile Base Music Stand
DISCLAIMER
Milestone AV Technologies and its affiliated corporations and subsidiaries (collectively, "Milestone"), intend to make this manual accurate and complete. However, Milestone makes no claim that the information contained herein covers all details, conditions or variations, nor does it provide for every possible contingency in connection with the installation or use of this product. The information contained in this document is subject to change without notice or obligation of any kind. Milestone makes no representation of warranty, expressed or implied, regarding the information contained herein. Milestone assumes no responsibility for accuracy, completeness or sufficiency of the information contained in this document.
Chief® is a registered trademark of Milestone AV Technologies. All rights reserved.

IMPORTANT WARNINGS AND TIONS!

WARNING: A WARNING alerts you to the possibility of serious injury or death if you do not follow the instructions.

CAUTION: A CAUTION alerts you to the possibility of damage or destruction of equipment if you do not follow the corresponding instructions.

WARNING: Failure to read, thoroughly understand, and follow all instructions can result in serious personal injury, damage to equipment, or voiding of factory warranty! It is the installer's responsibility to make sure all components are properly assembled and installed using the instructions provided.

WARNING: Failure to provide adequate structural strength for this component can result in serious personal injury or damage to equipment! It is the installer's responsibility to make sure the structure to which this component is attached can support five times the combined weight of all equipment. Reinforce the structure as required before installing the component.

WARNING: Exceeding the weight capacity can result in serious personal injury or damage to equipment! It is the installer's responsibility to make sure the combined weight of all components on the stand does not exceed 150 lbs (68.04 kg).
DIMENSIONS
![[941] 37 1/8" [816] 32 1/8" [729] 28 3/4" [191] 7 1/2"](/content/2026/05/1142444/images/77c94a360093a09dbbb5771fabf7f094593013aa2d35ae5af557dd9b902ba7ba.jpg)
![[1300] 51 1/4" 7"](/content/2026/05/1142444/images/b3879b2a93d90ba202bc43bbec5bb967a5bba9206cd5284e42b952561e3927c1.jpg)
![[1905] [39] 75" 1 1/2" [65] 2 1/2" [1115] 43 7/8" [855] 33 5/8" [398] 15 5/8" [626] 24 5/8"](/content/2026/05/1142444/images/8a50abbdb91036baa49cd526cc21f8665b4e1eb249d802497efb777f06f8be24.jpg)

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Technical line drawing of a mechanical support structure with vertical and horizontal components (no text or symbols)DIMENSIONS: [MILLIMETERS] INCHES
LEGEND
![]() | Tighten Fastener | ![]() | Pencil Mark |
| Apretar elemento de fijación | Marcar con lápiz | ||
| Befestigungsteil festziehen | Stiftmarkierung | ||
| Apertar fixador | Marcar com lápis | ||
| Serrare il fissaggio | Segno a matita | ||
| Bevestiging vastdraaien | Potloodmerkteken | ||
| Serrez les fixations | Marquage au crayon | ||
![]() | Loosen Fastener | ![]() | Drill Hole |
| Aflojar elemento de fijación | Perforar | ||
| Befestigungsteil lösen | Bohrloch | ||
| Desapertar fixador | Fazer furo | ||
| Allentare il fissaggio | Praticare un foro | ||
| Bevestiging losdraaien | Gat boren | ||
| Desserrez les fixations | Percez un trou | ||
![]() | Phillips Screwdriver | ![]() | Adjust |
| Destornillador Phillips | Ajustar | ||
| Kreuzschlitzschraubendreher | Einstellen | ||
| Chave de fendas Phillips | Ajustar | ||
| Cacciavite a stella | Regolare | ||
| Kruiskopschroevendraaier | Afstellen | ||
| Tournevis à pointe cruciforme | Ajuster | ||
![]() | Open-Ended Wrench | ![]() | Remove |
| Llave de boca | Quitar | ||
| Gabelschlüssel | Entfernen | ||
| Chave de bocas | Remover | ||
| Chiave a punte aperte | Rimuovere | ||
| Steeksleutel | Verwijderen | ||
| Clé à fourche | Retirez | ||
![]() | By Hand | ![]() | Optional |
| A mano | Opcional | ||
| Von Hand | Optional | ||
| Com a mão | Opcional | ||
| A mano | Opzionale | ||
| Met de hand | Optie | ||
| À la main | En option | ||
![]() | Hex-Head Wrench | ![]() | Security Wrench |
| Llave de cabeza hexagonal | Llave de seguridad | ||
| Sechskantschlüssel | Sicherheitsschlüssel | ||
| Chave de cabeça sextavada | Chave de segurança | ||
| Chiave esagonale | Chiave di sicurezza | ||
| Zeskantsleutel | Veiligheidssleutel | ||
| Clé à tête hexagonale | Clé de sécurité |
TOOLS REQUIRED FOR INSTALLATION

PARTS
![A (1) [Left leg] B (1) [Right leg] C (4) [Snap-on cover] D (2) [End cap] E (1) [Upright] F (1) [Cross bracket] G (1) 3/16" [Drill bit] H (1) 3/16" J (4) 5/16-18 x 3/4" K (4) 5/16-18 x 2-3/4" L (4) 5/16-18 x 4-1/4" M (4) 5/16"](/content/2026/05/1142444/images/24b71125a37318a3b4cc018509ac79f53f855f205eb17e66fb560367f9b0c9f1.jpg)
ASSEMBLY

CAUTION: Attachment holes may be damaged if a power drill is used to insert button head cap screws. Screws should first be inserted and turned BY HAND with the hex key or with a handheld screwdriver BEFORE using the hex head drill bit (G) and power drill to complete the attachment.
- Assemble two legs (A) and (B) to the stand cross bracket (F) using two 5/16-18 x 4-1/4" button head cap screws (L) through one end cap (D) per leg. (See Figure 1)

Figure 1

CAUTION: INNER COLUMN IS SHIPPED DISENGAGED and may pinch hands! Hold both inner column and outer upright while removing from box.
IMPORTANT ! : Press cable tie tab to loosen and remove cable tie from around knob post. (See Figure 2)
NOTE: Disengage knob on upright BEFORE attaching base to the upright.
- Lift up slightly on the inner column of upright and hold firmly toward top of upright. (See Figure 2)
- Pull out knob on the upright and turn 90° in either direction to disengage the locking mechanism. (See Figure 2)
- Raise the inner column and turn the knob 90° in either direction to engage the knob and lock the column in place. (See Figure 2)

Figure 2
NOTE: Insert and turn screws in order shown (1, 2, 3, 4). (See Figure 3)

Figure 3
- Attach upright (E) to leg assembly using four 5/16-18 x 2-3/4" button head cap screws (K) and four 5/16" washers (M). (See Figure 3) and (See Figure 4)

Figure 4
Attaching Accessories to Mobile Stand

WARNING: EXCEEDING MAXIMUM WEIGHT CAPACITY MAY LEAD TO SERIOUS PERSONAL INJURY OR DAMAGE TO EQUIPMENT! It is the installer's responsibility to ensure the total amount of weight placed on the stand does not exceed 150 lbs (68.04 kg).

CAUTION: Before attaching accessories to stand set the brakes on the back wheels by pressing down on the tab. (See Figure 5)
- Attach accessory and component(s) to stand following instructions included with the accessory.

Figure 5
Adjusting Stand Height

CAUTION: ALWAYS remove components attached to accessories BEFORE adjusting the height of stand.
- Firmly grasp top of inner column. (See Figure 6)
IMPORTANT ! : Firmly grasp at the top of the inner column when adjusting stand height. (See Figure 6)

Figure 6
-
Adjust the stand to the desired height by slightly lifting the accessory, pulling out knob on the center post and turning 90° in either direction to disengage the locking mechanism. (See Figure 7)
-
Raise or lower the upright, then turn the knob 90° either direction to engage the knob and lock the stand at desired height. (See Figure 7)

Figure 7
IMPORTANT ! : Set the height of the stand so the accessories do NOT rest on the upper part of the outer column. (See Figure 7) Always set the height so the knob is engaged in a hole in the inner column.
Cable Management
-
Signal cables can be run down the front flap of the upright and out the front of the upright at any of the openings. (See Figure 8)
-
Any accessory power cords can be run through the front and down through the upright to exit out the back. (See Figure 8)
-
Install the snap-on covers (C) to any opening that is not being used. (See Figure 8)
-
To remove the snap-on covers, grip the sides of the cover in the middle and pull off. They can also be removed by inserting a flat-blade screwdriver into the bottom slot and rotating the screwdriver.

Figure 8
Stand Use and Maintenance

CAUTION: This stand is intended for use only with the products and maximum weight indicated (150 lbs [68.04 kg]). Use with other products or products heavier than the maximum weight indicated may result in instability causing possible injury.

WARNING: STAND CAN TIP OVER RESULTING IN RISK OF INJURY. Move stand slowly. Apply moving force on narrow dimension. Never apply force at top - always push near middle. Push, don't pull.

Figure 9
- Always place stand on level surface.
- Always lock the wheels when the stand is not moving.
- Check and tighten the hex nuts on the casters occasionally. (See Figure 10) These should be checked especially after use on uneven ground.

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Technical line drawing of a mechanical component with a 4x4 ratio indicator (no text or symbols present)Figure 10











