Troubleshooting - Zoom F4 Operation Manual

Troubleshooting

If you think that the F is operating strangely, check the following items first.
Recording/playback trouble
◆ There is no sound or output is very quiet
· Check the connections to your monitoring system and its volume
setting.
· Confirm that the volume of the F is not too low.
◆ Sound from connected equipment or inputs cannot be
heard or is very quiet
· If you are using a mic capsule, confirm that it is oriented correctly.
· Check the input level settings. (→ P .27)
· If a CD player or other device is connected to an input jack, raise the
output level of that device.
· Check the input signal monitoring settings. (→ P .27)
· Check the phantom power and plug-in power settings. (→ P .80, P .83)
· Check the headphones, MAIN OUT 1/2 and SUB OUT 1/2 routing
settings. (→ P .90)
◆ Recording is not possible
· Confirm that the track keys are lit red.
· Confirm that the SD card has open space. (→ P .141)
· Confirm that an SD card is loaded properly in a card slot.
· If "Card Protected!" appears on the display, the SD card write-protec-
tion is enabled. Slide the lock switch on the SD card to disable
write-protection.
◆ The recorded sound cannot be heard or is very quiet
· Confirm that the volume levels of the tracks are not too low. (→ P .50)
· Confirm that the track keys are lit green during playback.
Other trouble
◆ Computer does not recognize it even though it is connected to the
USB port.
· Confirm that the operating system is compatible. (→ P .119)
· The operation mode must be set on the F to allow the computer
to recognize the F. (→ P .119)
◆ Battery operation time is short
Making the following settings could increase the battery operation time.
· Set the power supply used correctly. (→ P .20)
· Turn unnecessary tracks off. (→ P .25)
· Turn unnecessary outputs off. (→ P .94)
· Set the phantom power voltage to 24V. (→ P .80)
· Disable phantom power during playback. (→ P .82)
· Turn timecode off if not using it. (→ P .105)
· Reduce the LED brightness.(→ P .138)
· Turn the display backlight off. (→ P .136)
· Reduce the sampling rate used to record files. (→ P .30)
· Due to their characteristics, using nickel metal hydride batteries (espe-
cially high-capacity ones) or lithium batteries should enable longer use
than alkaline batteries when power consumption is high.
F
Multi Track Field Recorder
149