42
DGX-630/YPG-635
TEST
LCD Display
Test Descriptions, Judging Criteria
No.
44
044 Rom Chk2
Checks the ROM that is connected to the CPU bus.
The test result appears on the LCD. Make sure that “Rom OK” is displayed on the LCD.
It takes about 3 seconds.
(OK:”Rom OK”, NG:”Rom NG”)
45
045 Ram Chk2
Check the RAM that is connected to the CPU bus.
The test result appears on the LCD. Make sure that “Ram OK” is displayed on the LCD.
(OK:”Ram OK”, NG:”Ram NG”)
46
046 Flash RomChk2
Checks the flash ROM that is connected to CPU bus.
The test result appears on the LCD. Make sure that “Flash Ram OK” is displayed on the LCD.
It takes about 30 seconds.
(OK:”Flash Rom OK”, NG:”Flash Rom NG”)
47
047 Wave RomChk2
Checks the wave ROM that is connected to CPU bus.
The test result appears on the LCD. Make sure that “Wave Rom OK” is displayed on the LCD.
It takes about 40 seconds.
(OK:”Wave Rom OK”, NG:”Wave Rom NG”)
49
049 Factory Set
All backup domains are initialized and it changes into a factory-shipments state when executing
this test. It takes about 2 seconds.
50
050 Test Exit
Execute this to leave the test mode and change to the play mode.
--
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Noise Level Check (in the normal mode)
Connect the level meter(with a JIS-C filter) to the [PHONES/OUTPUT] jack. (33
Ω
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
