Sony MHC-V21 Operating Instructions - Page 46
Disc player, CHILD LOCK appears when
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•• Check the connection of the optional equipment, if any (page 15). •• Turn on the connected equipment. •• 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 level. •• Make sure the microphone is connected to the MIC1 or MIC2/ GUITAR 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 (not supplied) to the AC power cord (mains lead). •• Turn off surrounding electrical equipment. •• The noise generated by the cooling fans of the system may be heard when the system is turned on. This is not a malfunction. •• Move the unit away from the neon signs or fluorescent light. The remote control does not function. •• Remove the obstacles between the remote control and the unit. •• Move the remote control closer to the unit. •• Point the remote control at the unit's sensor. •• Replace the batteries (R03/size AAA). •• Move the unit away from the fluorescent light. 46US There is acoustic feedback. •• Reduce the volume. •• Move the microphone and guitar away from the system or change the direction of the microphone. "CHILD LOCK" appears when you press any button on the unit. •• Set the Child Lock function to off (page 44). A clicking sound is heard when the system is turned on. •• This is the operating sound and it occurs when the system is turned on or off, for example. This is not a malfunction. The sound loses stereo effect during playback. •• Turn off the Vocal Fader (page 41). •• Make sure the system is connected properly. Disc player The disc tray does not open and "LOCKED" appears on the display. •• Consult your nearest Sony dealer or local authorized Sony service facility. The disc tray does not close. •• Load the disc correctly. The disc does not eject. •• You cannot eject the disc during Synchronized Transfer or REC1 Transfer. Press to cancel the transfer, then press on the unit to eject the disc. •• Consult your nearest Sony dealer. Playback does not start. •• Wipe the disc clean (page 52). •• Reload the disc. •• Load the disc that this system can play back (page 8).
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