Sony HVR-S270J Service Manual page 355

15. REC CH SELECT Check
Mode
Signal
Measurement Point
Measuring Instrument
Specified value
Note: 0 dBu = 0.775 Vrms/balance
Menu setting
1) HDV 2CH/4CH (AUDIO SET menu) ............................. 2CH
Switch setting
1) INPUT1 switch ................................................................ MIC
2) INPUT2 switch ................................................................ MIC
3) INPUT3 switch ................................................................ MIC
4) INPUT4 switch ................................................................ MIC
5) REC CH SELECT CH1 switch ............................. IN1 or IN3
6) REC CH SELECT CH2 switch ......... IN2 or IN1_IN3 or IN4
7) AUDIO MONITOR switch .......................................... CH1/2
8) CH1 switch (RECORDING LEVEL) .......................... AUTO
9) CH2 switch (RECORDING LEVEL) .......................... AUTO
HVR-S270J/S270U/S270N/S270E/S270P/S270C
CAMERA mode
1 kHz, –48 dBu signal:
XLR terminal (AUDIO INPUT1 (L))
2 kHz, –48 dBu signal:
XLR terminal (AUDIO INPUT2 (R))
3 kHz, –48 dBu signal:
XLR terminal (AUDIO INPUT3)
4 kHz, –48 dBu signal:
XLR terminal (AUDIO INPUT4)
Audio L and R terminal of AUDIO
OUT jack (CH1, CH2)
Oscilloscope
The REC CH SELECT switch must
operate normally.
Checking method:
1) Input 1 kHz, –48 dBu signal in the XLR terminal (AUDIO
INPUT1 (L)).
2) Input 2 kHz, –48 dBu signal in the XLR terminal (AUDIO
INPUT2 (R)).
3) Input 3 kHz, –48 dBu signal in the XLR terminal (AUDIO
INPUT3).
4) Input 4 kHz, –48 dBu signal in the XLR terminal (AUDIO
INPUT4).
5) Operate the REC CH SELECT switch to check the input op-
erations of (A) to (F) mentioned below.
Operation (A) Audio L (CH1): Outputs INPUT1 1 kHz
Audio R (CH2): Outputs INPUT2 2 kHz
Operation (B) Audio L (CH1): Outputs INPUT3 3 kHz
Audio R (CH2): Outputs INPUT4 4 kHz
Operation (C) Audio L (CH1): Outputs INPUT1 1 kHz
Audio R (CH2): Outputs INPUT1 1 kHz
Operation (D) Audio L (CH1): Outputs INPUT3 3 kHz
Audio R (CH2): Outputs INPUT3 3 kHz
Operation (E) Audio L (CH1): Outputs INPUT1 1 kHz
Audio R (CH2): Outputs INPUT4 4 kHz
Operation (F) Audio L (CH1): Outputs INPUT3 3 kHz
Audio R (CH2): Outputs INPUT2 2 kHz
Operation (A) REC CH SELECT CH1 switch...IN1
REC CH SELECT CH2 switch...IN2
Operation (B) REC CH SELECT CH1 switch...IN3
REC CH SELECT CH2 switch...IN4
Operation (C) REC CH SELECT CH1 switch...IN1
REC CH SELECT CH2 switch...IN1_IN3
Operation (D) REC CH SELECT CH1 switch...IN3
REC CH SELECT CH2 switch...IN1_IN3
Operation (E) REC CH SELECT CH1 switch...IN1
REC CH SELECT CH2 switch...IN4
Operation (F) REC CH SELECT CH1 switch...IN3
REC CH SELECT CH2 switch...IN2
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