21
PSR-E223/YPT-220
TEST PROGRAM
1 Preparations
1) Use an AC adaptor PA-3C or PA-130.
2) Measuring device: Frequency counter, which can detect thousandth value or more, Level meter (with JIS-C
fi
lter), Oscilloscope
Note: Use a stereo plug and connect a load resistor of 33
Ω
to the [PHONES/OUTPUT] jack for measurement unless
otherwise speci
fi
ed. Input impedance of the measuring device should be 1 M
Ω
or more.
3) Jig: Foot switch (FC-4 or FC-5), MIDI cable
4)
Controller
settings
MASTER
VOLUME
:
MAX
PEDAL
:
OFF
REVERB
:
OFF
Others
: Initial setting when the power is turned on
2
Starting up the Test Program
While holding down the keys [C#2], [F2] and [G#2] simultaneously, press the [STANDBY / ON] switch.
F2
C#2
G#2
3 Test
procedure
1) When the test program is started, “
TEST
” will be displayed on the LCD.
2) Press the [–] or [+] button of the number buttons to select a test program item.
3) Press the [START/STOP] button to execute the test.
If the result is OK or test item is completed,
press the [START/STOP] button again to return to the item selection display.
Press the [–] or [+] button of the number buttons to select the next test item.
A cursor (“_”) is shown below the
fi
rst character of the item for which the test results are OK.
If the result is NG,
press the lowest key (white key C1) to return to the item selection display.
4
Test Program List
(dBu=dBm)
TEST No
LCD display
Test descriptions, judging conditions, etc.
1
001: Version
Displays version of the ROM.
“
∗∗∗
Prog
” is displayed on the LCD.
∗∗∗
: Version
2
002: Rom Chk1
Checks the ROM connected to the CPU bus.
Make sure that “
Rom OK
” is displayed on the LCD.
11
011: TG1 Chk
Plays each key automatically in the order of scale (auto-scaling). (32 notes from C2 to G4 will be played.)
Make sure that there is no abnormal sounds or noise. When the auto-scaling is
fi
nished, “
TG1 End
”
will be shown. Press a key to play a sound. (Single note, the key pressed
fi
rst will be played)
13
013: Pit Chk
Checks pitch accuracy.
Connect the frequency counter to the [PHONES/OUTPUT] jack. (Either L or R)
Make sure that the correct signal is output. (440.14 Hz ± 0.22 Hz)
14
014: Output R
Connect the level meter (with JIS-C
fi
lter) to the L/R of the [PHONES/OUTPUT] jack.
(33
Ω
load)
Set the [MASTER VOLUME] to the maximum level and check the output level.
· PHONES L: –45.0 dBu or less
· PHONES R: –1.0 dBu ± 2 dB
15
015: Output L
Connect the level meter (with JIS-C
fi
lter) to the L/R of the [PHONES/OUTPUT] jack.
(33
Ω
load)
Set the [MASTER VOLUME] to the maximum level and check the output level.
· PHONES L: –1.0 dBu ± 2 dB
· PHONES R: –45.0 dBu or less
