Yamaha 01x Service Manual page 82

O1X
(5) Check point when judged as NG
None
4.26 mLAN PATCH connection ......
(1) Outline
The DSP patch required for the MLN2 circuit board operation
check work is provided. The LCD appears as shown below and
the patch can be varied by turning [KNOB-1].
32:mLAN PATCH
AD18->ML18 ML14->DA14
(2) Execution method in the normal state
The signal to be output to DA14 (DA12, DA34) can be varied
by turning [KNOB-1]. It is possible to make following settings.
The PC is always used as the clock maser. However, 48K/96K
PLL is selected by turning [KNOB-5]. When 48PLL is selected,
the word clock does not lock at 88.2K/96K and when 96KPKLL
is selected it does not lock at 44.1K/48K.
"OFF": MLAN1-16 output is muted.
"AD18->ML18": AD1-8 is output to MLAN1-8.
MLAN9-16 is muted.
"AD18->ML916": AD1-8 is output to MLAN9-16.
MLAN1-8 is muted.
The signal to be output to DA1-4 and D.OUT can be varied by
turning [KNOB-3]. It is possible to make following settings.
"OFF": DA1-4 is muted and Digital OUT is also
muted.
"ML14->DA14": MLAN1-4 input is output to DA1-4.
MLAN1,2 input is output to Digital
OUT.
"ML58->DA14": MLAN5-8 input is output to DA1-4.
MLAN5,6 input is output to Digital
OUT.
"ML912->DA14": MLAN9-12 input is output to DA1-4.
MLAN9,10 input is output to Digital
OUT.
"ML1316->DA14": MLAN13-16 input is output to DA1-4.
MLAN13,14 input is output to Digital
OUT.
"ML1718->DA14": MLAN17-18 input is output to DA1-4.
MLAN17,18 input is output to Digital
OUT.
The PLL to be used is selected by turning [KNOB-5].
"48KPLL": PLL (DIR2) for 44.1K/48K is used.
"96KPLL": PLL for 88.2K/96K is used.
82
(32) mLAN PATCH
48KPLL EXIT
To terminate the operation, press [KNOB-8].
(3) Execution method in the faulty state
None
(4) Item description and error message
None
(5) Check point when judged as NG
None
4.27 MIDI-B loop-back check ......
(1) Outline
The loop-back check of the MIDI-B port is executed. Using the
MIDI cable, connect IN and OUT of the MIDI-B connector on
the rear panel in advance.
33:MIDI-B
RELEASE CABLE
(2) Execution method in the normal state
The loop-back check of the MIDI-B is executed and when the
data is transmitted and received properly, the message as shown
below is displayed.
Disconnect the MIDI cable and press [KNOB-8].
33:MIDI-B
TEST OK
(3) Execution method in the faulty state
If an error has occurred, the message as shown below appears.
Press [KNOB-8], and the screen returns to the execution select
screen. Also, an error code is output to MIDI-B OUT.
33:MIDI-B
ERROR:xxxxxx
(4) Item description and error message
1: MIDI-B
Error message: ERROR: MIDI-B
The MIDI-B failed to transmit or receive the data.
2: SIGNAL Short
Error message: ERROR : SHORT
There is an internal short between MIDI-B IN and MIDI-
B OUT.
(5) Check point when judged as NG
None
(33) MIDI-B
ENTER
EXIT
EXIT