Yamaha MD4S User Manual

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Troubleshooting
101
—Owner’s Manual
Do I have to sacrifice one track to record timecode?
No. The MD4S generates MTC (MIDI Timecode) or MIDI Clock from the disc’s internal sync 
signals. So even in a synchronized MIDI system, all eight tracks are available for sound record-
ing.
How many songs can I store on an MD DATA disc?
Up to 254.
Do I have to clean the MD4S heads?
No.
Troubleshooting
If you’re having difficulty operating the MD4S or if it doesn’t seem to work as expected, look 
up the symptoms in the following table and follow the advice provided.
Symptom
Advice
The MD4S cannot be turned 
on!
Make sure the power cord is connected to a suitable AC wall outlet 
and plugged into the AC IN connector at the rear of the MD4S.
Make sure that the MD4S POWER switch is set to the ON position.
If you still cannot turn on your MD4S, contact your Yamaha dealer.
Cannot listen to a connected 
music source!
Make sure that the MONITOR LEVEL control is raised, and that the 
FLIP switches and MONITOR SELECT switches are set appropriately. 
If the FLIP switch is in the “MIC/LINE (
)” position, raise the fader 
of the corresponding input channel and the STEREO fader, and turn 
on the MONITOR SELECT STEREO switch. If the FLIP switch is in the 
“PB (
)” position, raise the CUE LEVEL control of the correspond-
ing input channel and the STEREO fader, and  turn on the MONI-
TOR SELECT CUE switch.
Cannot record four tracks!
Are you using a MiniDisc? Please use MD DATA discs.
Make sure that the 4TR recording mode is selected.
Cannot record!
Make sure the disc’s write protect tab is set to unprotect.
Make sure that the x1/2 Play function is not on.
Press a REC SELECT button, or the BUS button + REC SELECT button, 
and make sure that the track is ready to record.
Make sure that the signal that you wish to record has been selected 
as the recording source for the appropriate track. Use the CUE LEVEL 
control to check whether the signal is actually being sent to the 
track.
Cannot rehearse!
You cannot rehearse the first recording on a blank disc or blank area. 
Record something first, then use the Rehearse function.
The level meters do not indi-
cate signal levels!
Press a REC SELECT button, or the BUS button + REC SELECT button, 
and make sure that the desired track is ready to record. Next, press 
the REC button or the REHE button, and make sure that the MD4S is 
in record-pause or rehearsal-pause mode.
Cannot use the Auto Punch 
In/Out function!
Make sure that the track you wish to record has been selected.
Make sure that the auto punch-in/out points have been specified. If 
they have been specified, the IN and OUT point indicators will be lit.
Make sure that the auto punch-out point has not been set at a loca-
tion that is earlier than the auto punch-in point.