Inspection - Yamaha CS1D Service Manual

(4) Noise level EIN (1 and 2) (4) Noise level EIN (1 and 2) (4) Noise level EIN (1 and 2) (4) Noise level EIN (1 and 2)
Conditions: Input terminal shorted with 150 Ω. Conditions: Input terminal shorted with 150 Ω. Conditions: Input terminal shorted with 150 Ω. Conditions: Input terminal shorted with 150 Ω.
Tolerance range Tolerance range Tolerance range Tolerance range
-72 dB max. -72 dB max. -72 dB max. -72 dB max.
However, if the noise level is not in the above tolerance range, this condition must be met: However, if the noise level is not in the above tolerance range, this condition must be met: However, if the noise level is not in the above tolerance range, this condition must be met: However, if the noise level is not in the above tolerance range, this condition must be met:
(5) Level differences between 1 and 2 (5) Level differences between 1 and 2 (5) Level differences between 1 and 2 (5) Level differences between 1 and 2
The difference in gain measured in (1) must be within the following range. The difference in gain measured in (1) must be within the following range. The difference in gain measured in (1) must be within the following range. The difference in gain measured in (1) must be within the following range.
Tolerance range Tolerance range Tolerance range Tolerance range
1 dB max. 1 dB max. 1 dB max. 1 dB max.
B. TALKBACK LEVEL MAX. 10 dB On B. TALKBACK LEVEL MAX. 10 dB On B. TALKBACK LEVEL MAX. 10 dB On B. TALKBACK LEVEL MAX. 10 dB On
(1) Gain (1 and 2) (1) Gain (1 and 2) (1) Gain (1 and 2) (1) Gain (1 and 2)
Input frequency Input frequency Input frequency Input frequency
1 kHz 1 kHz 1 kHz 1 kHz
(2) Distortion ratio (1 and 2) (2) Distortion ratio (1 and 2) (2) Distortion ratio (1 and 2) (2) Distortion ratio (1 and 2)
Input frequency Input frequency Input frequency Input frequency
1 kHz 1 kHz 1 kHz 1 kHz
(3) Noise level (1 and 2) (3) Noise level (1 and 2) (3) Noise level (1 and 2) (3) Noise level (1 and 2)
Conditions: Input terminal shorted with 150 Ω. Conditions: Input terminal shorted with 150 Ω. Conditions: Input terminal shorted with 150 Ω. Conditions: Input terminal shorted with 150 Ω.
Tolerance range Tolerance range Tolerance range Tolerance range
-81 dB max. -81 dB max. -81 dB max. -81 dB max.
(4) Crosstalk between 1 and 2 (4) Crosstalk between 1 and 2 (4) Crosstalk between 1 and 2 (4) Crosstalk between 1 and 2
Conditions: Input signal to 1 side and short 2 side with 150 Ω. Conditions: Input signal to 1 side and short 2 side with 150 Ω. Conditions: Input signal to 1 side and short 2 side with 150 Ω. Conditions: Input signal to 1 side and short 2 side with 150 Ω.
Input frequency Input frequency Input frequency Input frequency
1 kHz 1 kHz 1 kHz 1 kHz
The same must be true for the 2 side too. The same must be true for the 2 side too. The same must be true for the 2 side too. The same must be true for the 2 side too.
C. Phantom (1 and 2) C. Phantom (1 and 2) C. Phantom (1 and 2) C. Phantom (1 and 2)
Short XLR Pin 2 and Pin 3 and connection 10 kΩ load between Pins 2 and 1. The voltage when the phantom is on must be as Short XLR Pin 2 and Pin 3 and connection 10 kΩ load between Pins 2 and 1. The voltage when the phantom is on must be as Short XLR Pin 2 and Pin 3 and connection 10 kΩ load between Pins 2 and 1. The voltage when the phantom is on must be as Short XLR Pin 2 and Pin 3 and connection 10 kΩ load between Pins 2 and 1. The voltage when the phantom is on must be as
follows. follows. follows. follows.
Tolerance range Tolerance range Tolerance range Tolerance range
DC34 to 38 V DC34 to 38 V DC34 to 38 V DC34 to 38 V
When the phantom is switched off, the discharge must start immediately. When the phantom is switched off, the discharge must start immediately. When the phantom is switched off, the discharge must start immediately. When the phantom is switched off, the discharge must start immediately.
3-7. 3-7. 3-7. 3-7. Jitter Measurement Jitter Measurement Jitter Measurement Jitter Measurement
· Connect the STEREO OUT DIGITAL A terminal to DSA1. · Connect the STEREO OUT DIGITAL A terminal to DSA1. · Connect the STEREO OUT DIGITAL A terminal to DSA1. · Connect the STEREO OUT DIGITAL A terminal to DSA1.
· Set the Fs to 48 kHz and 44.1 kHz with the test program and measure the jitter at DSA1. · Set the Fs to 48 kHz and 44.1 kHz with the test program and measure the jitter at DSA1. · Set the Fs to 48 kHz and 44.1 kHz with the test program and measure the jitter at DSA1. · Set the Fs to 48 kHz and 44.1 kHz with the test program and measure the jitter at DSA1.
48 kHz 48 kHz 48 kHz 48 kHz
44.1 kHz 44.1 kHz 44.1 kHz 44.1 kHz
48 kHz 48 kHz 48 kHz 48 kHz
44.1 kHz 44.1 kHz 44.1 kHz 44.1 kHz
3-8. 3-8. 3-8. 3-8. Ramp Voltage Measurement Ramp Voltage Measurement Ramp Voltage Measurement Ramp Voltage Measurement
· Measure the voltage between Pin 3 and Pin 4 at four locations on the rear panel. · Measure the voltage between Pin 3 and Pin 4 at four locations on the rear panel. · Measure the voltage between Pin 3 and Pin 4 at four locations on the rear panel. · Measure the voltage between Pin 3 and Pin 4 at four locations on the rear panel.
· Measure the voltage when the RAMP DIMMER control is MAX and MIN. · Measure the voltage when the RAMP DIMMER control is MAX and MIN. · Measure the voltage when the RAMP DIMMER control is MAX and MIN. · Measure the voltage when the RAMP DIMMER control is MAX and MIN.
MAX MAX MAX MAX
MIN MIN MIN MIN
3-9. 3-9. 3-9. 3-9. Fan Operation Check Fan Operation Check Fan Operation Check Fan Operation Check
· Check that the fan rotates while the power is on. · Check that the fan rotates while the power is on. · Check that the fan rotates while the power is on. · Check that the fan rotates while the power is on.
· Listen to the noise from the fan to verify that the FAN switch changes the rotation rate. · Listen to the noise from the fan to verify that the FAN switch changes the rotation rate. · Listen to the noise from the fan to verify that the FAN switch changes the rotation rate. · Listen to the noise from the fan to verify that the FAN switch changes the rotation rate.
FAN switch high: FAN switch high: FAN switch high: FAN switch high:
FAN switch low: FAN switch low: FAN switch low: FAN switch low:
Input level Input level Input level Input level Rated output level Rated output level Rated output level Rated output level
10 dBu 10 dBu 10 dBu 10 dBu
Output level Output level Output level Output level Tolerance range Tolerance range Tolerance range Tolerance range
+10 dBu +10 dBu +10 dBu +10 dBu 0.02 % max. 0.02 % max. 0.02 % max. 0.02 % max.
Output level (L) Output level (L) Output level (L) Output level (L) Tolerance range (R) Tolerance range (R) Tolerance range (R) Tolerance range (R)
20 dBu 20 dBu 20 dBu 20 dBu -60 dBu max. -60 dBu max. -60 dBu max. -60 dBu max.
Tolerance range Tolerance range Tolerance range Tolerance range
6 nsec max. 6 nsec max. 6 nsec max. 6 nsec max.
WORD CLOCK IN WORD CLOCK IN WORD CLOCK IN WORD CLOCK IN
5 nsec max. 5 nsec max. 5 nsec max. 5 nsec max.
6 nsec max. 6 nsec max. 6 nsec max. 6 nsec max.
2TRACK IN DIGITAL 3 2TRACK IN DIGITAL 3 2TRACK IN DIGITAL 3 2TRACK IN DIGITAL 3
6 nsec max. 6 nsec max. 6 nsec max. 6 nsec max.
Tolerance range Tolerance range Tolerance range Tolerance range
11.5 +/- 1 V 11.5 +/- 1 V 11.5 +/- 1 V 11.5 +/- 1 V
2.5 +/- 1 V 2.5 +/- 1 V 2.5 +/- 1 V 2.5 +/- 1 V
Fast Fast Fast Fast
Slow Slow Slow Slow
Tolerance range Tolerance range Tolerance range Tolerance range
+10 dBu +10 dBu +10 dBu +10 dBu +10 +/- 2.0 dBu +10 +/- 2.0 dBu +10 +/- 2.0 dBu +10 +/- 2.0 dBu
Note)If it fails a normal inspection, re-inspect after
30 minutes of edging. It passes if it is within
the permissible range.
Measurement value - (gain at 1 kHz)= -126 Measurement value - (gain at 1 kHz)= -126 Measurement value - (gain at 1 kHz)= -126 Measurement value - (gain at 1 kHz)= -126
CS1D CS1D CS1D CS1D
101 101 101 101