Information
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Customer Name
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Job Number
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QC Performed by
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Location
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Room
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Conducted on
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Add signature
Section 01 - Initial Checks
Section 01 - Physical Environment
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1. Verify physical inventory of all equipment to be assigned to this project via BOM, change orders, proposal, and drawings.
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2. Do you have the red-lined drawings (if not, do not proceed)?
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3. Do you have draft QRG’s with you to review?
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4. Do you have a technician with you to perform corrective actions?
Section 02 – Audio System
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1. Ambient noise within acceptable limits (preferably 45 dB SPL A weighted slow or less)? Note measurement.
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2. Playback Sources - Signal paths traced and highlighted on drawings?
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3. Interface Sources - Signal paths traced and highlighted on drawings?
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4. Are all sources subjectively at the same level? (if not, tweak them at the switcher or mixer, as appropriate)
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5. If you are verifying stereo sources, are you receiving both channels through the audio system?
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6. Wired microphone
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a. Phantom power set?
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b. Signal path verified?
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c. High pass filter enabled?
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7. Wireless microphone
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a. Channel and frequency set per location (city/zip Code NOT at factory default)?
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b. Antennas or transceivers properly installed and NOT located in metal rack enclosures
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c. No dropouts
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d. High pass filter enabled
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e. All transmitters/receivers labeled (P-Touch) for identification and match the control systems names
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f. All transmitters have batteries
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8. Gain Structure Settings
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a. Mic inputs-audio quality intelligible and clean? No feedback in voice-lift systems
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b. Line inputs-audio quality clean? No hums, buzzes or distortion on inputs
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c. Telco inputs/outputs-clean and intelligible
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d. Codec inputs/outputs-clean and intelligible
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e. Volume levels controlled correctly? PRE matrix mixer, not overall room level control if there is voice -lift in the room
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f. Maximum volume set up
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g. Audio test call successful
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h. Video test call successful
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i. Audio quality is subjectively good on all sources
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j. Audio functions correctly after re-boot
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k. Audio system (ATC and voice-lift) can be used without powering on the video system
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9. Speaker Checks
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a. All speakers functional
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b. All speakers in phase
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c. All speakers tapped correctly (level is the same)
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d. Grills and covers fully installed and logo badges all facing the same direction or removed
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e. No loose or rattling grills or hardware
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10. Equalization.
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a. System/s are equalized for the room or manufacturer recommended tunings applied in DSP (peaks minimized)
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b. Subwoofer, crossover point and EQ set up for best integration with mains
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c. When you are done, do a subjective evaluation of sound quality. If you feel the <br>system is lacking in any way, record notes below.
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11. Firmware
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a. Ensure that the firmware of all audio DSP equipment is current and is recorded on the IP form and note below.
Section 03 – Video System
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a. All video paths tested with generator or actual source and highlighted on drawings?
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b. Are all sources/scalers are set to the native resolution of the displays or EDID preferred
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c. Ensure that EDID information is defined for digital video systems and that all displays are capable of the common resolution identified in the EDID
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d. Verify that copy protected (HDCP) content shows up on all displays
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e. If you are dealing with a video wall, ensure that each required resolution is recalled and displayed correctly and that the color balance and alignment is set
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f. Communicate with the end user about any special resolution requirements or unusual computer sources and test these
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g. If you are using twisted pair, verify that peaking and skew are set correctly for each feed at the twisted pair receiver and/or switcher end
Section 04 – Control System: System capabilities and functionality should always be measured by the Programming Scope of Work provided.
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1. IP Configuration
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a. Programming SOW provided?
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b. Setup IP addressing scheme as identified on the drawings, in the IP form provided to you, or as directed by the customer. Add this information to the IP form which is located in the job book.
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C. Verify that the code is already loaded. If not, load it now.
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2. Visual Inspection
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a. Does the touch panel layout appear professional or are there fuzzy graphics, <br>misspelling or cartoonish aspects to the design?
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b. Customer logo is displayed on the front page and is it the correct logo
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c. The layout appears easy-to-understand for a non-engineer
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d. The buttons large enough for a finger to press
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e. Verify the Service page is included on the touch panel and displays the correct job number
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3. Functional Test (this assumes the system was tested in the shop prior to arriving on site –
if not, complete the Rack Commissioning) -
a. Shut down works correctly
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b. Power up works correctly
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c. All sources are routable
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d. Does each source function as expected from the touch panel (no remotes)
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e. Are startup volume states correct? For example; Playback 50%, Speech Reinforcement 90% and teleconference receive 50%.
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f. Receive audio feeds from codecs and phone hybrids controlled by a common volume control that appears on the appropriate page and you don’t have to hunt for it
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g. Receive audio feeds from codecs and phone hybrids controlled by volume control that is SEPARATE from the program audio volume control
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h. Privacy mute is provided on the appropriate page with feedback on the panel AND on microphone (LEDs) if provided
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i. Privacy mute also mutes voice-lift microphones to the far-end simultaneously with any ceiling or table microphones
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j. Mute and volume states are TRUE AT STARTUP
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k. Control system operates as defined in the Programming Scope of Work
Section 05 – Video Teleconference Test
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1. Noise cancellation is set up
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2. Automixing/Gating is enabled
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3. Echo canceller in the codec is disabled if there is an external echo canceller in the system
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4. AGC/levelers are enabled for mics if appropriate (not recommended for Shure MXA-910 microphones)
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5. Add AGC/leveling to incoming VTC level and re-test.
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6. Ensure codec is set to the correct display mode – either dual screen or single screen.
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7. Self-view works and you can position the camera? (left/right/up/down/zoom-in/zoom-out are not swapped)
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8. Pan and tilt speeds are usable when zoomed in on a subject
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9. Codec has all option keys installed as specified on the BOM and any change orders in the job book
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10. Codec output resolution matches the displays
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11. Content sharing is set to “standards compatible” or H.239?
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7. Use the touch panel to dial a video test call.
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a. Video quality is acceptable
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b. Audio input/output quality and levels are acceptable
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c. Echo and noise cancellation are working properly; remember, if you hear echo on your end, it is the OTHER end causing it.
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d. Route content source; audio and video work at the far-end
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e. If there is a recording device, initiate a recording and verify that it works
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f. Perform a phone add; does it work?
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g. Hang up the test call and have the far end call you. Can you accept a received call?
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h. Subjectively, how is the call quality? Make notes.
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10. Firmware
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a. Verify the firmware of all video devices (codecs, Crestron DM etc.) is current and is recorded on the IP form and note below.
Section 06 – Audio Conference Test
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1. Telco/VoIP audio inputs/outputs are OK
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2. Noise cancellation set is up
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3. Automixing/Gating is enabled?
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4. Echo canceller is referenced properly
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5. AGC/Levelers enabled for mics if appropriate (not recommended for Shure MXA-910 microphones)
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6. Add AGC/leveling to incoming telco level and re-test
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7. Customer’s bridging service accepts dial-in credentials; verify that your password is taken consistently by making three test calls.
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8. Bridged call with three participants, levels acceptable; note any call quality differences on bridge calls vs point to point calls
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9. Echo and noise cancellation are working properly; remember, if you hear echo on your end, it is the OTHER end causing it.
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10. Have the far end call you, can you answer the call?
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11. Can you switch to VTC mode without the call hanging up?
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12. Audio input/output quality and levels are acceptable
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13. If you made ANY level changes in this test, did you go back and re-test VTC plus phone add?
Section 07 – Display Wall System
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1. Base structure is plumb and level, and is securely anchored to the floor and/or <br>surrounding load-bearing structure according to provided drawings.
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2. Each display is set to its native resolution (1:1) and is receiving a signal at that resolution such that the image fills the screen to the edges.
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3. Images tightly aligned using cross-hatch or grid test pattern, with no more than +/- 1 pixel deviation at any junction and edge loss of less than 1 pixel across the entire wall.
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Note to Project Manager: Follow up on the work to be done, and oversee that it is completed within a reasonable time frame.
