Sony MHC-V7D Operating Instructions - Page 46

Additional Information Troubleshooting Should you encounter a problem with your system, find your problem in the troubleshooting checklist below and take the corrective action. If the problem persists, consult your nearest Sony dealer. Note that if the service personnel changes some parts during repair, these parts may be retained. If "PROTECTX" (X is a number) appears in the display panel Immediately unplug the AC power cord (mains lead), and check the following items.  Is anything blocking the ventilation holes of the unit?  Is the USB port short-circuited? After checking the above items and fixing any problems, plug in the AC power cord (mains lead) again and turn on the system. If the issue persists, consult your nearest Sony dealer. General The power does not turn on.  Check that the AC power cord (mains lead) is connected securely. The system has entered standby mode.  This is not a malfunction. The system enters standby mode automatically in about 15 minutes when there is no operation or audio signal output (page 45). 46GB The clock or timer setting is canceled.  The AC power cord (mains lead) is disconnected or a power failure occurred. Set the clock (page 17) and timer (page 43) again. There is no sound.  Adjust the volume.  Check the connection of the optional equipment, if any (page 15).  Turn on the connected equipment.  There is no audio output during Recording Timer.  Unplug the AC power cord (mains lead), then plug in the AC power cord (mains lead) again and turn on the system. There is no microphone sound.  Adjust the microphone volume.  Make sure the microphone is connected to the MIC 1 or MIC 2 jack on the unit correctly.  Make sure the microphone is turned on. There is severe hum or noise.  Move the system away from sources of noise.  Connect the system to a different wall outlet.  Install a noise filter (commercially available) to the AC power cord (mains lead).  Turn off surrounding electrical equipment.  You can hear a noise from cooling fans when the system is in standby mode or playback at low volume. This is not a malfunction. The timer does not function.  Check the timer setting and set the correct time (page 43).  Cancel the Sleep Timer function (page 44). The remote control does not function.  Remove the obstacles between the remote control and the unit.