Crestron QM-FTDC, Operation And Installation Manual, Page: 55 / 64

Crestron QM-FTDC FlipTop Data Center
QM-FTDC Troubleshooting (continued)
TROUBLE POSSIBLE
CAUSE(S) CORRECTIVE ACTION
Incorrect cable
connections. Verify 15-pin output cable
connection. Verify QM input cable
connections. Video from
RGB source is
garbled or no
output.
Signal skew due to cable
length or unequal pair
length. Verify maximum QM cable length
and compensation for skew.
Poor RGB or
video image
quality. Incorrect peak and/or boost
setting. Adjust SystemBuilder peak or boost
controls until image quality is
improved.
Hum on audio
and/or mic. Grounding problem. Refer to ground wire connection
instructions on page 22.
Intermittent or
no audio/mic
output. Incorrect peak setting. Adjust SystemBuilder peak control
until audio is restored.
Microphone requires
phantom power or cannot
use phantom power. Enable or disable phantom power
as necessary using controls
created in the SystemBuilder
project.
Incorrect gain, gating
level, attack time or decay
time settings. Adjust gain, gating level, attack
time, or decay time settings as
required.
Microphone
does not
produce
sound.
Incorrect volume and/or
mixer settings on
QM-RMCRX. Adjust volume and/or mixer
settings on QM-RMCRX-BA as
required.
Incorrect peak setting.
Adjust QM-RMCRX-BA peak
control until audio is restored. For
more information refer to the latest
version of the QM-RMCRX-BA
Operations Guide (Doc. 6332).
Poor cable connection. Verify all cable connections.
Intermittent
microphone
output.
Gating setting too high. Adjust gating level.
Microphone
produces
harsh,
distorted
sound. Input gain is set too high. Lower microphone input gain.
Buttons do
not function
when
pressed. Net ID incorrect or does
not match SIMPL
Windows program. InToolbox, check Functions |
CresnetID to verify Net ID. Verify
SIMPL Windows program ID.
Button press
yields
incorrect
result. Incorrect programming. Verify SIMPL Windows program.
Button LED
does not
illuminate. Feedback signal names
incorrect in SIMPL
Windows. Verify SIMPL Windows feedback
signal names.
Operations & Installation Guide – DOC. 6312A FlipTop Data Center: QM-FTDC
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