E-E Auto Maximum Input Check - Sony DSR-45 Service Manual

DSR-45/45P

10. E-E AUTO Maximum Input Check

Mode
Signal
Measurement Point
Measuring instrument
Specified Value
Note 1: 0 dBu = 0.775 Vrms/balance
Note 2: 0 dBs = 0.775 Vrms
Switch setting
INPUT LEVEL select switch .......................... –10
Menu setting (AUDIO SET menu)
AUDIO MODE ................................................ FS32K
Checking method:
1) Enter 1 kHz, +18 dBs signal to the AUDIO IN terminal (CH-1).
2) Check that the output of AUDIO OUT terminal (CH-1) satis-
fies the specified value.
3) Using an oscilloscope, measure the output waveform at the 2
pin and 3 pin of the AUDIO OUT terminal (CH-1).
4) Check at this time that no clip is found in the output wave-
form.
5) For the CH-2 to 4, make a checking in the same manner.
STOP
Audio: 1 kHz, +18 dBs signal
AUDIO IN terminal (CH-1 to 4)
AUDIO OUT terminal (CH-1 to 4)
Audio level meter
Oscilloscope
+18 to +22 dBu
5-96