6-62
HVR-M25J/M25U/M25N/M25E/M25P/M25C
5.
E-E Noise Level Check
Mode
E-E
Signal
Audio: No signal
Nothing is connected to the
AUDIO IN terminal (CH-1, 2)
Measurement Point
AUDIO OUT terminal (CH-1, 2)
Measuring instrument
Audio noise meter
(A-weight filter ON)
Specified Value
–80 dBs or less
Note:
0 dBs = 0.775 Vrms
Switch setting
1) AUDIO MODE (AUDIO SET menu) ........................ FS48K
2) AUDIO INPUT LEVEL switch ...................................... –10
3) AUDIO REC LEVEL control knob
........... The position at –10 dB Check of E-E Level Check
Checking method:
1) Connect the audio noise meter to the AUDIO OUT terminal
(CH-1), and turn on the A-weight filter.
2) Measure the noise level at this time to check that it satisfies
the specified value.
3) For the CH-2, make a checking in the same manner.
6.
Distortion Check
Mode
E-E
Signal
Audio: 1 kHz, +8 dBs signal (NTSC)
1 kHz, +6 dBs signal (PAL)
AUDIO IN terminal (CH-1, 2)
Measurement Point
AUDIO OUT terminal (CH-1, 2)
Measuring instrument
Audio distortion meter
Specified Value
–80 dB or less (THD)
Note:
0 dBs = 0.775 Vrms
Switch setting
1) AUDIO MODE (AUDIO SET menu) ........................ FS48K
2) AUDIO INPUT LEVEL switch ...................................... –10
3) AUDIO REC LEVEL control knob
........... The position at –10 dB Check of E-E Level Check
Checking method:
1) Enter 1 kHz, +8 dBs (NTSC) or +6 dBs (PAL) signal to the
AUDIO IN terminal (CH-1).
2) Measure the distortion of the AUDIO OUT terminal (CH-1) at
this time to check that it satisfies the specified value.
3) For the CH-2, make a checking in the same manner.
