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Yamaha Portable Grand DGX-530 Manual page 27

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TEST No.
LCD Display
33
033 Pitch Bend Chk
37
037 MIDI Chk
41
041 Rom Chk2
42
042 Ram Chk2
45
045 Flash Rom Chk2
47
047 Factory set
48
048 Test Exit
--
--
* Note: As for the test no.41 - 45, it takes time. If you want to skip them, press the [+/YES] button several times to go to the test
no.47 (Factory Set).
Test Descriptions, Judgment Criteria
Checks the pitch bend wheel.
(First, it checks if the center position of the wheel is correct or not.)
Check that the C3 note is output when rotating the [PITCH BEND] wheel to minimum and the C4
note is output when rotating it to maximum.
(OK:"Pitch Bend OK", NG:"Pitch Bend NG", If the center position of the wheel
is not correct:"Pitch Bend C NG")
Checks MIDI and USB.
Connect the PC with a USB-MIDI driver installed and the [USB TO HOST] terminal using a
USB cable, and execute the test.
(As for the PC, install a USB-MIDI driver in the PC and finish the THROUGH setup, in
advance.)
Check that the C4 note is output and the LCD displays "MIDI OK".
Checks the ROM that is connected to the CPU.
The test result appears on the LCD. Check that the LCD displays "Rom OK".
I
t t
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s e
a
o b
t u
0 2
e s
o c
d n
. s
Check the RAM that is connected to the CPU.
The test results appear on the LCD. Check that the LCD displays "Ram OK".
I
t t
k a
s e
b a
u o
5 t
e s
o c
d n
. s
Checks the flash ROM that is connected to CPU bus.
The check result appears on the LCD. Check that the LCD displays "Flash Ram OK".
It takes about 60 seconds.
All backup domains are initialized and it changes into a factory-shipments state when executing
this test.
Exit from the test program after executing this test.
Noise Check (in the normal mode)
Connect the level meter (with a JIS-C filter) to the [PHONES/OUTPUT] jack. (33 ohm load)
Set the [MASTER VOLUME] at maximum and check that the noise level is within the range
below.
PHONES L/R : less than -74.0 dBu
DGX-530/YPG-535
(OK:"MIDI OK", NG:"MIDI NG")
(
O
K
" :
R
o
m
O
K
, "
(
O
K
" :
R
a
m
O
K
, "
(OK:"Flash Rom OK", NG:"Flash Rom NG")
N
G
" :
R
o
m
N
G
) "
N
G
" :
R
a
m
N
G
) "
27
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