Yamaha PSR-E443 Service Manual page 32

PSR-E443
TEST
LCD display
No.
PD1 Chk
35
035
PB Chk
39
039
MIDI Chk
41
041
Conn Chk
42
042
Strg Chk
43
043
Adpt Chk
44
044
Rom Chk2
55
055
Ram Chk2
56
056
FRomChk2
57
057
Factory
60
060
TestExit
61
061
32
Test descriptions, judging conditions, etc.
Before power switch ON, Connect a footswitch (FC-4 or FC-5) to the [SUSTAIN] jack.
Check that "PD1 On" is shown on the LCD and C3 sound is played when the [START/STOP]
button is pressed with the pedal released.
Check that "PD1 Off" is shown on the LCD and C4 sound is played when the pedal is depressed.
When the pedal is released again, confi rm that "PD1 OK" is shown on the LCD and the sound
will be stopped.
Execute the steps below.
1) Press the [START/STOP] button. "PB UP" is shown on the LCD.
2) Check that "PB DW" is shown on the LCD and G3 sound is played when the [PITCH BEND]
wheel is rotated upward to the maximum position.
3) Check that "PB C" is shown on the LCD and C3 sound is played when the [PITCH BEND]
wheel is rotated downward to the minimum position.
4) Release the [PITCH BEND] wheel to return to the default center position automatically.
Confi rm that "PB OK" is shown on the LCD and C4 sound is played.
5) Press the [START/STOP] button to stop the sound.
Connect a PC which has installed the USB-MIDI driver and main unit [USB] terminal with a USB
cable. Set the through mode on PC and execute the test. Confirm that the C4 note is output and "MIDI
OK" is shown on the LCD.
Checks the [USB TO DEVICE] and [USB TO HOST] terminals. (Loop check)
1) Press the [START/STOP] button. "Conn C1" is shown on the LCD.
2) Plug a USB cable into the USB [TO HOST] terminal, then into USB [TO DEVICE] terminal.
3) Confi rm that "Conn C2" is shown on the LCD, remove the USB cable, then insert a USB fl ash
memory to the USB [TO DEVICE] terminal to trigger the C4 sound.
4) Confi rm that "Conn OK" is shown on the LCD, press the [START/STOP] button to stop the sound.
Checks the a USB storage device. (Storage check)
1) Connect the USB fl ash memory (formatted via this instrument) to the USB [TO DEVICE]
terminal.
2) Press the [START/STOP] button to execute the test.
3) Confi rm that "Strg OK" is shown on the LCD.
In case of NG, the following message is shown.
"Strg NG": Failure in reading/writing
"Strg no": No media
"Strg Prt": Protected media
Before this test, insert the prescribed batteries.
1) Press the [START/STOP] button. "Adpt Out" is shown on the LCD.
2) Check that "Adpt In" is shown on the LCD when the AC adapter is disconnected from DC IN
jack.
3) Connect the AC adapter into DC IN jack.
Confi rm that "Adpt OK" is shown on the LCD and C4 sound is played.
Checks the ROM connected to the CPU bus.
Confi rm that "Rom OK" is shown on the LCD.
It will take about 25 seconds for the check.
Checks the RAM connected to the CPU bus.
Confi rm that "Ram OK" is shown on the LCD.
Checks the FROM connected to the CPU bus.
Confi rm that "FRom OK" is shown on the LCD.
It will take about 100 seconds for the check.
Initializes the entire backup area to reset to the factory default.
"Fact --" is shown on the LCD during the factory set.
"Fact End" is shown on the LCD when the factory set is fi nished.
Do not turn off the power during this process.
This will leave the test program, reset the system and change to the play mode.
Do not turn off the power until the main screen is shown.