Yamaha AW2816, Service Manual

Page: 68 / 120

AW2816
68
4-15 Digital I/O Function Test (16 DIGITAL I/O)
“=== DIGITAL I/O ===” is displayed on the LCD.
(1) Test Content
1) Checks whether the digital I/O (SPDIF format) signal
can be sent and received correctly.
2) Checks the digital audio signals.
(2) Judgment
1) If all the test results are “OK”
Press the
ENTER
key. The test menu will reappear with
displayed to the left of the test item (DIGITAL I/O),
and the cursor advances to the next test in the menu.
2) If the following NG messages appear:
•
STATUS
→
Problem with DIGITAL AUDIO signal’s
status bit
•
EMPHASIS
→
Problem with DIGITAL AUDIO signal’s
emphasis information Problem with
DIREMP signal of DIR2 (IC408)
•
DIR LOCK
→
Problem with /RES-DIT signal of DIT (IC409)
Problem with LOCK signal of DIR (IC408)
Problem with DIGITAL AUDIO signal
•
DIR SPDWCK
→
Problem with 128FS signal of DIT
(IC409)
Problem with SPDWCK signal of DIR
(IC408)
Problem with DIGITAL AUDIO signal
Press the CANCEL key. The test menu will reappear with
NG displayed to the left of the test item (DIGITAL I/
O). The cursor does not advance.
4-16 Fader Test (17 FADER)
“=== FADER ===” is displayed on the LCD.
(1) Test Content
1) Checks the fader operation.
(2) Judgment
1) The following instructions will appear on the LCD.
--- SLOW MODE ---
PUSH [SONG ] [FILE ] [SETUP] [UTILITY]
[CD ] [QUICK REC] key [MIDI ] [PATCH] key
Press the
QUICK
REC
key, and check that positional
variation between adjacent faders is within 2.5mm,
and that the largest positional variation among the
nine faders is within 5.0mm.
Press the SONG key, and check that all the faders
move to the
∞
position.
Press the
FILE
key, and check that all the faders
move to the +6 (0) position.
Press the
CD
PLAY
key, and check that all the faders
move near to the 7.5 (25) position.
Press the
QUICK
REC
key, and check that all the faders
move near to the 0 (10) position.
Press the
SETUP
key, and check that all the faders
move slowly to the
∞
position.
Press the
UTILITY
key, and check that all the faders
move slowly to the +6 (0) position.
Press the MIDI key, and check that all the faders
move slowly to the 7.5 (25) position.
Press the
PATCH
key, and check that all the faders
move slowly to the 0 (10) position.
(Values in parentheses are for stereo faders.)
2) If all the faders have moved correctly:
Press the
ENTER
key. The test menu will reappear
with displayed to the left of the test item
(FADER), and the cursor advances to the next test
in the menu.
3) If there was an error in fader movement:
Press the CANCEL key. The test menu will reappear
with NG displayed to the left of the test item (FADER).
The cursor does not advance.
4-17 SDRAM (DRC) Function Test (19 SDRAM)
“===
SDRAM (DRC)
===” is displayed on the LCD.
(1) Test Content
1) Checks DRC connections.
(2) Judgment
1) If all the connections are OK:
The following messages will appear.
DRC - SDRM ...OK
IDE - DRC - SDRM ...OK
SCSI - DRC - SDRM ...OK
Press the
ENTER
key. The test menu will reappear
with displayed to the left of the test item (IDE).
2) If some connections are NG:
DRC - SDRM (check CPU -> DRC -> SDRAM)
→
Connection problem between REC
CPU - DRC - SDRM
IDE - DRC - SDRM (check IDE -> DRC -> SDRAM)
→
Connection problem between internal
HDD - DRC - SDRM
SCSI - DRC - SDRM (check SCSI -> DRC -> SDRAM)
→
Connection problem between external
HDD - DRC - SDRM
Press the CANCEL key. The test menu will reappear
with NG displayed to the left of the test item (IDE).