Panel Led Test W; Haad Da Reg Test; Analog In/Out Test - Yamaha DME24N Service Manual

1-23. PANEL LED Test w

Content: Perform tests limited to LED-scan lines for
LEDs and 7-seg LEDs on the panel. An LED on each
LED-scan line is randomly selected, lighting on in the
order of Line 0, 1 . . . and 5.
LCD Screen
∗∗∗
23. PANEL LED-2
EXIT: [ENTER]
Fig. 44. PANEL LED Test Screen w
q The following LEDs light on one by one according
to the model.
● DME24
EXT. CLOCK (Line 0) → NETWORK (Line 1) →
SIGNAL IN (1) (Line 2) → PEAK OUT (4) (Line 4)
→ SIGNAL-OUT (8) (Line 5) → 7-seg (a) (Line 3)
→ 7-seg (c) (Line 4) → 7-seg (f) (Line 5) → 7-seg
(dp) (Line 3) → 7-seg (dp) (Line 5)
● DME64
EXT.CLOCK (Line 0) → NETWORK (Line 1) → 7-
seg (a) (Line 3)→7-seg (c) (Line 4)→7-seg (f) (Line
5) → 7-seg (dp) (Line 3) → 7-seg (dp) (Line 5)
1
4
Fig. 45. 7 Lighting Sequence of Seg-LEDs
w LEDs that can light with more than one colors light
in the order of "green" → "red" → "orange" (with no
orange when two-colored).
e When all LEDs have lighted on, all of them brink
five times in one second interval, and then all light
on, which makes the completion of the test.
(All light on to confirm the LEDs' brightness.)
∗∗∗
3
2
5

1-24. HAAD DA REG Test

Content: Check HAAD and DA registers of DME24N.
Executing Screen
∗∗∗
24. HAAD DA
OK !
NG: CARD NAME ERROR !
EXIT: [ENTER]
Fig. 46. HAAD DA REG Test Screen (2)
Message
· When the name (DME24N_HA-AD) is wrong:
· When information on card condition fails to be
obtained:
NG: CARD CONDITION READ ERROR!

1-25. ANALOG IN/OUT Test

Content: Output signals input in HAAD to DA, and
check the output signals.
Details of Setting Values
The number of items examined varies according to
exam categories.
q Total Test
The tests will be performed with the following 9 setting
values.
Test No WORDCLOCK
1 INT 96k
2 INT 96k
3 INT 96k
4 INT 96k
5 INT 96k
6 INT 96k
7 INT 48k
8 EXT (BNC) (96k+6%)
9 EXT (BNC) (44.1k-10%)
DME24N/DME64N
Indicated in case of O.K.
∗∗∗
Indicated in case of NG.
NG: CARD NAME ERROR!
Fs PHANTOM HA-GAIN
OFF 10dBu
OFF -60dBu
OFF -17dBu
OFF -37dBu
OFF -46dBu
ON 10dBu
OFF 10dBu
OFF 10dBu
OFF 10dBu
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