Yamaha Clavinova CLP-920, Руководство по обслуживанию

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CLP-920/CLP-930
15 T15: Output L Check output level (1 kHz) .
AUX OUT L / L + R: - 12 dBm +/- 2 db
AUX OUT R: Less than - 60 dBm
PHONES L: - 15 dBm +/- 2 db, PHONES R: Less than - 50 dBm
16 T16: EQ Low For factory test use only.
17 T17: EQ Mid For factory test use only.
18 T18: EQ High For factory test use only.
19 T19: D / A Noise Checks D / A converter noise.
Play a note and check that there is no noise during the PIANO 1 release time.
(Damper pedal is ON)
20 T20: SW, LED Check Checks switchs and LEDs on the pedal.
Play the switch which is displayed on theLED. (The order is shown in the Table 1. )
A pre-assigned note is output when the switches pressed. (With some switches, the
corresponding LED will light up. )
21 T21: All Panel LED On Check that all panel LEDs are lit.
31 T31: Soft Pedal Check Check that C4 is output when pushing the pedal and C3 is output when releasing the
pedal, and that the LED displays “OK”.
32 T32: Soste. Pedal Check Check that C4 is output when pushing the pedal and C3 is output when releasing the
pedal, and that the LED displays “OK”.
33 T33: Damper Pedal Check Check that C4 is output when pushing the pedal and C3 is output when releasing the
pedal, and that the LED displays “OK”.
37 T37: MIDI Check After connecting the MIDI IN and MIDI OUT, execute the test . The test result appears
on tne LED display.
38 T38: To Host Check Connect pin to pin 2, pin 3 to pin 5, and pin 6 to pin 8 on the TO HOST terminal, and
execute the test.
Check that the following notes are output when changing the HOST SELECT switch
position according to the LED indication, and that the LED displays “OK”.
Mac position: C5, PC - 2 position: C4, PC - 1 position: C3
41 T41: ROM Check 2 For factory test use only.
42 T42: RAM Check 2 For factory test use only.
43 T43: Wave ROM Check 2 For factory test use only.
46 T46: Back Up Check 2 For factory test use only.
47 T47: Factory Set All RAMs are initialized and set to the factory preset data when executing this test.
48 T48: Test Mode Exit Exit from the test program when executing this test.
Notes: 0 dBm = 0.775 V