Audio System Adjustments; Digital8 Playback Level Check - Sony DCR-TRV140 Service Manual

3-5.

AUDIO SYSTEM ADJUSTMENTS

[Connecting the measuring instruments for the audio]
Connect the audio system measuring instruments in addition to
the video system measuring instruments as shown in Fig. 5-3-14.
In Playback
Main unit
A/V OUT
Audio (L)
jack
Audio (R)
Video
Fig. 5-3-10
Audio level meter
47 k Ω
47 k Ω: 1-249-437-11
TV monitor
DCR-TRV140/TRV140E/TRV140M

1. Digital8 Playback Level Check

Mode
Signal
Measurement Point
Measuring Instrument
Specified Value
Checking Method:
1) Check that the playback signal level is the specified value.
5-49
VTR playback
Digital8 alignment tape:
For audio operation check
(WR5-3ND (NTSC))
(WR5-3CD (PAL))
Audio left or right terminal of A/V
OUT jack
Audio level meter and frequency
counter
32 kHz mode: 1 kHz, + 3.0 ± 2.0 dBs
48 kHz mode: 1 kHz, + 3.0 ± 2.0 dBs
44.1 kHz mode:
The 7.35 kHz signal level during EMP
OFF is +2.0 ± 2.0 dBs.
The 7.35 kHz signal level during EMP
ON is –6 ± 2 dB from the signal level
during EMP OFF.