Instruction Manual

P2 analog OPERATION MANUAL
16
TROUBLESHOOTING
T
Symptom
No signal output. Main power switch
is on, but no LED’s are illuminated.
Solution
 Check AC power source and cord.
 Check fuses (pull fuse drawer under power
cord inlet)
No signal output. Main power switch
is on and some LED’s are
illuminated.
 Check status of phantom power.
 Check continuity of mic and electric
instrument cables.
 Check continuity of output cables.
Output signal is distorted. Outputs
are connected for balanced
operation.
 Make sure gain is adjusted so that the OL
indicator does not activate during the audio
program.
 Make sure the high output capability of this
unit is not overloading the device or
monitoring system to which it is connected -
set GAIN selector to match capability of
device or monitoring system, then adjust gain
control according to indications on the Level
Indicator LED’s.
 Check continuity of output cable.
 Make sure outputs are not connected to a
load impedance of less than 600 ohms.
Output signal is distorted. Outputs
are connected for unbalanced
operation.
 Make sure the minus (-) output signal pins are
connected to the shield and not left
unconnected. See “Output Cable Connection”
section.
 Check troubleshooting tips for balanced
operation (above).
Hum can be heard in the audio
program.
 Disconnect grounding LINK.
 Check continuity of output cables (particularly
shields).
 Disconnect shields on one end of output
cables. Connect grounding LINK.
Channel 1 signal can be heard in
Channel 2 output - and vice versa.
 Check status of M-S selector. It should be
OFF for individual channel mode and ON for
Mid-Side mode.
Channel 2 seems to have no output
when used with Channel 1 as a
stereo pair
 Check status of M-S selector. It should be
OFF for individual channel mode and ON for
Mid-Side mode.