Sony DSR-PD198P, Service Manual

Page: 290 / 458

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HVR-Z5C/Z5E/Z5J/Z5N/Z5P/Z5U
11. INPUT2 MIC WIND Filter Check
Mode CAMERA mode
Signal 100 Hz, –50 dBu signal:
XLR terminal (INPUT2)
Measurement Point Audio R terminal of A/V Remote
connector
Measuring Instrument Audio level meter, Oscilloscope
Specified value –13 dBs
±
2 dB
(INPUT2 WIND OFF)
Specified value –23 dBs
±
5 dB
(INPUT2 WIND ON)
Specified value –10 dB
±
3 dB
(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 CAMERA mode
Signal No signal
Measurement Point XLR terminal (INPUT1, INPUT2)
+ probe: pin
2
,
3
– probe: pin
1
Measuring Instrument Digital voltmeter
Specified value A = 1 V or less
B = 46.0
±
3.0 V
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.
10. INPUT1 MIC WIND Filter Check
Mode CAMERA mode
Signal 100 Hz, –50 dBu signal:
XLR terminal (INPUT1)
Measurement Point Audio L terminal of A/V Remote
connector
Measuring Instrument Audio level meter, Oscilloscope
Specified value –13 dBs
±
2 dB
(INPUT1 WIND OFF)
Specified value –23 dBs
±
5 dB
(INPUT1 WIND ON)
Specified value –10 dB
±
3 dB
(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”.