Sony HVR-S270J Service Manual page 353

11. INPUT1 MIC ATT Check
Mode
Signal
Measurement Point
Measuring Instrument
Specified value
(INPUT1 TRIM:
–12 dB)
Note 1: 0 dBu = 0.775 Vrms/balance
Note 2: 0 dBs = 0.775 Vrms
Menu setting
1) HDV 2CH/4CH (AUDIO SET menu) ............................. 4CH
Switch setting
1) INPUT1 switch ................................................................ MIC
2) CH1 switch .................................................................... MAN
3) AUDIO MONITOR switch .......................................... CH1/2
Checking method:
1) Input 1 kHz, –48 dBu signal in the XLR terminal (AUDIO
INPUT1 (L)).
2) Set the INPUT1 TRIM (AUDIO SET menu: XLR SET) to "–
12dB".
3) Set the REC-LEVEL VOL CH1 to the position adjusted in "7.
INPUT1 MIC Check".
4) Check that the 1 kHz signal level is the specified value.
5) Set the INPUT1 TRIM (AUDIO SET menu: XLR SET) to
"0dB".
HVR-S270J/S270U/S270N/S270E/S270P/S270C
CAMERA mode
1 kHz, –48 dBu signal:
XLR terminal (AUDIO INPUT1 (L))
Audio L terminal of AUDIO OUT
jack (CH1)
Audio level meter, Oscilloscope
–24 dBs to –20 dBs
12. INPUT2 MIC ATTCheck
Mode
Signal
Measurement Point
Measuring Instrument
Specified value
(INPUT2 TRIM:
–12 dB)
Note 1: 0 dBu = 0.775 Vrms/balance
Note 2: 0 dBs = 0.775 Vrms
Menu setting
1) HDV 2CH/4CH (AUDIO SET menu) ............................. 4CH
Switch setting
1) INPUT2 switch ................................................................ MIC
2) CH2 switch .................................................................... MAN
3) AUDIO MONITOR switch .......................................... CH1/2
Checking method:
1) Input 1 kHz, –48 dBu signal in the XLR terminal (AUDIO
INPUT2 (R)).
2) Set the INPUT2 TRIM (AUDIO SET menu: XLR SET) to "–
12dB".
3) Set the REC-LEVEL VOL CH2 to the position adjusted in "8.
INPUT2 MIC Check".
4) Check that the 1 kHz signal level is the specified value.
5) Set the INPUT2 TRIM (AUDIO SET menu: XLR SET) to
"0dB".
6-119
CAMERA mode
1 kHz, –48 dBu signal:
XLR terminal (AUDIO INPUT2 (R))
Audio R terminal of AUDIO OUT
jack (CH2)
Audio level meter, Oscilloscope
–24 dBs to –20 dBs