Sony EVO-720P - Page 264

6. Overall distortion check
Mode Selfrecording and playback |
Signal 400 Hz, —10 dBs
Checking recorder side:
Pin © of CN003 on
MA-22 board
Checking player side:
Pin ® of CNO10 on
Measurement Point
MA-22 board
Measuring Instrument } Distortion meter
Specified Value Less than 0.8% *!
Note: When checking the player side, use a tape
recorded on the recorder side.
Checking method :
1) Record the signal,
2) Playback the recorded section.
8) Confirm that the distortion rate is less than
0,896 1,
*1 Value furing using a 30 kHz LPF,
7, Qverali noise level check
Self-recording and playback
Nonsignal i ,
i nsert shorting plugs into
Signal the AUDIO IN’ terminals
and R.)
Checking recorder side :
Pin @ of CNO03 on
MA-22 board
Checking player side :
Pin © of CNO10 on
Measurement Point
MA-22 board
Measuring Instrument | Audio level meter
Specified Value Less than —70 dBs *?
Note; When checking the player side, use a tape
recorded on the recorder side,
Checking method :
1) Record the signal.
2) Playback the recorded section.
3) Confirm that noise level is less than.—70 dBs +2,
2 Value during using an IHF-A listening
sensitivity correction filter.
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