Sony HVR-Z5C Service Manual page 290

10. INPUT1 MIC WIND Filter Check
Mode
Signal
Measurement Point
Measuring Instrument
Specified value
(INPUT1 WIND OFF)
Specified value
(INPUT1 WIND ON)
Specified value
(INPUT1 WIND ON
/OFF difference)
Note 1: 0 dBu = 0.775 Vrms/balance
Note 2: 0 dBs = 0.775 Vrms
Switch setting
1) INPUT SELECT (CH1) switch ................................. INPUT1
2) INPUT SELECT (CH2) switch ................................. INPUT2
3) INPUT1 switch ................................................................ MIC
Checking method:
1) Set the INPUT1 WIND (AUDIO SET menu: XLR SET) to
"OFF".
2) Input 100 Hz, –50 dBu signal in the XLR terminal (INPUT1).
3) Check that the 100 Hz signal level is the specified value.
4) Set the INPUT1 WIND (AUDIO SET menu: XLR SET) to
"ON".
5) Check that the 100 Hz signal level is the specified value.
6) Check the level difference between INPUT1 WIND ON and
OFF is satisfied the specified value.
7) Set the INPUT1 WIND (AUDIO SET menu: XLR SET) to
"OFF".
HVR-Z5C/Z5E/Z5J/Z5N/Z5P/Z5U
CAMERA mode
100 Hz, –50 dBu signal:
XLR terminal (INPUT1)
Audio L terminal of A/V Remote
connector
Audio level meter, Oscilloscope
–13 dBs ± 2 dB
–23 dBs ± 5 dB
–10 dB ± 3 dB
11. INPUT2 MIC WIND Filter Check
Mode
Signal
Measurement Point
Measuring Instrument
Specified value
(INPUT2 WIND OFF)
Specified value
(INPUT2 WIND ON)
Specified value
(INPUT2 WIND ON
/OFF difference)
Note 1: 0 dBu = 0.775 Vrms/balance
Note 2: 0 dBs = 0.775 Vrms
Switch setting
1) INPUT SELECT (CH1) switch ................................. INPUT1
2) INPUT SELECT (CH2) switch ................................. INPUT2
3) INPUT2 switch ................................................................ MIC
Checking method:
1) Set the INPUT2 WIND (AUDIO SET menu: XLR SET) to
"OFF".
2) Input 100 Hz, –50 dBu signal in the XLR terminal (INPUT2).
3) Check that the 100 Hz signal level is the specified value.
4) Set the INPUT2 WIND (AUDIO SET menu: XLR SET) to
"ON".
5) Check that the 100 Hz signal level is the specified value.
6) Check the level difference between INPUT2 WIND ON and
OFF is satisfied the specified value.
7) Set the INPUT2 WIND (AUDIO SET menu: XLR SET) to
"OFF".
12. Microphone Power Supply Check
Mode
Signal
Measurement Point
Measuring Instrument
Specified value
Checking method:
1) Connect the + probe of digital voltmeter to the pin 2 on the
INPUT1.
2) Check that the DC voltage (A) satisfies the specified value.
3) Connect the + probe of digital voltmeter to the pin 3 on the
INPUT1.
4) Check that the DC voltage (A) satisfies the specified value.
5) Set the +48V switch (INPUT1) to "MIC+48 V".
6) Connect the + probe of digital voltmeter to the pin 2 on the
INPUT1.
7) Check that the DC voltage (B) satisfies the specified value.
8) Connect the + probe of digital voltmeter to the pin 3 on the
INPUT1.
9) Check that the DC voltage (B) satisfies the specified value.
10) Set the +48V switch (INPUT1) to "LINE".
11) For the INPUT2, perform checking in the same manner.
6-114
CAMERA mode
100 Hz, –50 dBu signal:
XLR terminal (INPUT2)
Audio R terminal of A/V Remote
connector
Audio level meter, Oscilloscope
–13 dBs ± 2 dB
–23 dBs ± 5 dB
–10 dB ± 3 dB
CAMERA mode
No signal
XLR terminal (INPUT1, INPUT2)
+ probe: pin 2, 3
– probe: pin 1
Digital voltmeter
A = 1 V or less
B = 46.0 ± 3.0 V