18
PSR-E303/YPT-300
TEST PROGRAM
Test No.
LCD display
Test descriptions, judging conditions, etc.
4
Test program list
1
001 : Version
Displays version of the ROM.
“
[
∗∗∗
]
Prog
” is displayed on the LCD.
[
∗∗∗
]
: Version
2
002 : Rom Chk1
ROM connected to the bus of the CPU is checked.
Make sure that “
Rom OK
” is displayed on the LCD.
3
003 : Ram Chk1
RAM connected to the bus of the CPU is checked.
Make sure that “
Ram OK
” is displayed on the LCD.
4
006 : FRomChk1
FROM connected to the bus of the CPU is checked.
Make sure that “
FRom OK
” is displayed on the LCD.
5
011 : TG1 Chk
Plays each key automatically in the order of scale (auto-scaling). (32 notes from C2 to G4
will be played.) Check that there is no abnormal sounds or noise. When the auto-scaling
is finished, “
TG1 End
” will be shown. Press a key to play a sound. (Single note, the key
pressed first will be played)
6
013 : Pit Chk
Connect the frequency counter to the [PHONES/OUTPUT] terminal. (Either L or R)
Checks pitch. (440.14Hz
±
0.22Hz)
Check that the correct signal is output.
7
014 : Output R
Connect the level meter (with JIS-C filter) to the L/R terminals of the [PHONES/OUTPUT].
(33
Ω
of load)
Set the [MASTER VOLUME] to the maximum level and check the output level.
• PHONES L: –45.0dBu or less
• PHONES R: –1.5dBu
±
2dB
8
015 : Output L
Connect the level meter (with JIS-C filter) to the L/R terminals of the [PHONES/OUTPUT].
(33
Ω
of load)
Set the [MASTER VOLUME] to the maximum level and check the output level.
• PHONES L: –1.5dBu
±
2dB
• PHONES R: –45.0dBu or less
1
Preparation
1) Use an AC adaptor PA-3C or PA-32.
2) Measuring device: Frequency counter, which can detect thousandth digit, Level meter (with JIS-C filter)
Note: Connect a load resistor of 33
Ω
to the terminal [PHONES/OUTPUT]. Input impedance of the measuring device
should be 1M
Ω
or more.
3) Jig: Foot switch (FC-4 or FC-5), MIDI cable
2
Start-up the Test Program
Holding down the keys [C2#], [F2], [G2#] simultaneously, press the [STANDBY / ON] switch.
∗
If the test number 47 “Factory Set” is executed, the data already set will be lost.
TEST
F2
C2#
G2#
STANDBY/ON
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 first character of the item for which the test results are OK.
If the results are NG, press the lowest key in the keyboard (white key C1) to return to the item selection display.
(dBu=dBm)
