Yamaha CLP-150 Service Manual page 40

CLP-150/CLP-150M/CLP-150C
No. LCD
27 027: Song Balance Chk
29 029: Midi Chk
30 030: To Host Chk
31 031: USB Chk
32 032: Keyboard Type Chk
37 037: Main Rom Chk2
38 038: Main Ram Chk2
39 039: Flash Rom Chk2
40 040: WaveRom Chk2
41 041: EffectRam Chk2
42 042: Factory Set
43 043: Test Exit
* 0 dBm = 0.775 V
40
Function and judgment criteria
Checks the song balance.
When the [SONG BALANCE] control is set to the "SONG" position, the C3 note is output and
"SONG BAL MIN" is displayed on the LCD display, when it is set to the "KEYBOARD" position,
the G3 note is output and "SONG BAL MAX" is displayed and when it is set back to the "CENTER"
position, the C4 note is output and the check result is displayed on the LCD display. Check that
"SONG BAL OK" is displayed.
After connecting the [MIDI in] jack and the [MIDI OUT] jack with a MIDI cable, execute the test.
(Keep the [HOST SELECT] switch at the MIDI position. )
Then the C4 tone is output and the check result is displayed on the LCD display. Check that "Midi
Chk OK" is displayed.
Short-circuit between pins 3 and 5, pins 6 and 8 of the [TO HOST] terminal and execute the test.
Change the [HOST SELECT] switch position according to the LCD indication and check that the
following tone is output at each postiion. (C3 at USB, C4 at PC and C5 at MAC). For the check
result, check that "To Host Chk OK" is displayed on the LCD display.
Checks the USB jack.
Connect the [USB] jack and the personal computer with a USB cable and set the [HOST SELECT]
switch to the USB position. When the test is executed, "USB Chk In" is displayed on the LCD
display. When the cable is disconnected, "USB Chk Out" is displayed on the LCD display. For the
check result, check that the C4 tone is output and "USB Chk OK" is displayed. (Set to the Thru On
position on the computer side.)
Checks the keyboard type.
When the test is executed, the C4 tone is output and check result is displayed on the LCD display.
Check that "Keyboard Type Chk OK" is displayed.
Checks all the ROMs that are connected to the CPU bus.
For the check result, check that "Main Rom Chk2 OK" is displayed on the LCD display.
Checks all the RAMs that are connected to the CPU bus.
For the check result, check that "Main Ram Chk2 OK" is displayed on the LCD display.
Checks all the flash memories that are connected to the CPU bus.
For the check result, check that "Flash Chk2 OK" is displayed on the LCD display. It takes about 50
seconds.
Checks the WAVE ROMs.
For the check result, check that "Wave Rom Chk2 OK" is displayed on the LCD display. It takes
about 30 seconds.
Checks the Effect ROMs.
For the check result, check that "Effect Ram Chk2 OK" is displayed on the LCD display. It takes
about 10 seconds.
When this test is executed, the factory preset data will be set in the Flash ROMs when the power is
turned on the next time. Check that "Factory Set OK" is displayed on the LCD display. It takes about
20 seconds.
When the test is executed, the test program will exit and the play mode will be set.