Yamaha PF-1000 Service Manual page 48

PF-1000
No. LCD
12 012: TG 1 Check
13 013: TG 2 Check
15 015: Pitch Check
16 016: Output R Check
17 017: Output L Check
18 018: EQ Low Check
19 019: EQ Mid Check
20 020: EQ High Check
22 022: D/A Noise Check
23 023: SW, LED Check
24 024: All Panel LED On Check
25 025: Red LED On Check
26 026: Green LED On Check
28 028: All LCD On Check
29 029: All LCD Off Check
31 031: LCD Brightness Check
32 032: Soft Pedal Check
33 033: Sostenuto Pedal Check
48
Test Function and Judgment criteria
Checks the Sound Source 1 (Autoscale) (XG)
Sequentially outputs the sine wave starting from the low keys (from C2 to G4) by switching the
channel of the sound source.
Check the sound by hearing that there is not noise or abnormal sound.
Checks the Sound Source 2 (Autoscale) (Natural Voice 1)
Sequentially outputs the sine wave starting from the low keys (from C2 to G4) by switching the
channel of the sound source.
Check the sound by hearing that there is not noise or abnormal sound.
Pitch check: Connect the frequency counter to the [PHONES] jack (33 ohm load).
Outputs the sine wave at 440 +/-0.2 Hz. (PAN = Center)
Connect the level meter (with a JIS-C filter) to each terminal (PHONES, AUX OUT L/L+R, R, AUX
OUT (LEVEL FIXED) L, R).
Set the [MASTER VOLUME] at MAX and check the R channel output level. (1 kHz sine wave,
PAN=R) (PHONES L, R: 33 ohm load AUX OUT L/L+R, R: 10 kohm load AUX OUT (LEVEL
FIXED) L, R: 10 kohm load)
PHONES L: less than -32.5 dBm
AUX OUT L/L+R: less than -39.0 dBm
AUX OUT (LEVEL FIXED) L: less than -40.5 dBm
Connect the level meter (with a JIS-C filter) to each terminal (PHONES, AUX OUT L/L+R, R, AUX
OUT (LEVEL FIXED) L, R).
Set the [MASTER VOLUME] at MAX and check the L channel output level. (1 kHz sine wave,
PAN=L) (PHONES L, R: 33 ohm load AUX OUT L/L+R, R: 10 kohm load AUX OUT (LEVEL
FIXED) L, R: 10 kohm load)
PHONES L: +7.5 dBm +/-2 dB
AUX OUT L/L+R: +11.0 dBm +/-2 dB
AUX OUT (LEVEL FIXED) L: +9.5 dBm +/-2 dB
Check the EQ-Low frequency.
Outputs the sine wave at about 65.4 Hz (C1). (PAN=Center)
Check the EQ-Mid frequency.
Outputs the sine wave at about 523 Hz (C4). (PAN=Center)
Check the EQ-High frequency.
Outputs the sine wave at about 4186 Hz (C7). (PAN=Center)
There must not be no noise generating by bit lack at the time of the pronunciation by the keyboard.
Check the switches on the panel and LED.
Press the switches on the LCD as instructed. A pre-assigned note is output when the switch is pressed.
(See 53-page table 1). When the switch with LED is pressed, that LED will light up. As the check
result appears on the LCD when all the switches are pressed as instructed. Check that OK is displayed.
For the dial check, confirm that the turning the data dial clockwise will increase the numerical value
from 50 to 100 and turning it counterclockwise will reduce it from 100 to 0.
Check that all panel LEDs are on. The 2-colors LED light up in orange.
Check that all red LEDs are on. The 2-colors LED light up in red.
Check that all green LEDs are on. The 2-colors LED light up in green.
Check that all LCD dots are on.
Check that all LCD dots are off.
Press the [1] to [4] switches of [ONE TOUCH SETTING] in order. The brightness of the LCD grows
lighter every time a switch is pressed.
Check that the C3 note is output when pressing the soft pedal, and that the C4 note is output when
releasing. For the check result, check that "Soft Test OK" is displayed on the LCD display.
Check that the C3 note is output when pressing the sostenuto pedal, and that the C4 note is output
when releasing. For the check result, check that "Sostenute Test OK" is displayed on the LCD display.
PHONES R: +7.5 dBm +/-2 dB
AUX OUT R: +11.0 dBm +/-2 dB
AUX OUT (LEVEL FIXED) R: +9.5 dBm +/-2 dB
PHONES R: less than -32.5 dBm
AUX OUT R: less than -39.0 dBm
AUX OUT (LEVEL FIXED) R: less than -40.5 dBm
Measured value: +9.0 dBm +/-2 dB
Measured value: - 0.5 dBm +/-2 dB
Measured value: +4.0 dBm +/-2 dB
Measurement terminal
MA60-CN6
1 pin : L ch
3 pin : R ch
2, 4 pin : GND