Sony HVR-M10C, Service Manual

Page: 225 / 329

6-73
HVR-M10C/M10E/M10J/M10N/M10P/M10U
1. Playback Level Check
Mode Playback
Signal Alignment tape:
For audio operation check
(XH5-3 (NTSC))
(XH5-3P (PAL))
Measurement Point AUDIO OUT left or right jack
Measuring Instrument Audio level meter and frequency
counter
Specified Value 32 kHz mode: 1 kHz, +8.2
±
2.0dBs
48 kHz mode: 1 kHz, +8.2
±
2.0dBs
44.1 kHz mode:
The 7.35kHz signal level during EMP
OFF is +8.2
±
2.0dBs.
The 7.35kHz signal level during EMP
ON is 0
±
2.2dBs.
Checking Method
1)
Check that the playback signal level is the specified value.
2. Overall Level Characteristics Check
Mode Recording and playback
Signal 1kHz, -6dBs signal:
AUDIO IN left and right jacks
Measurement Point AUDIO OUT left or right jack
Measuring Instrument Audio level meter
Specified Value -4.0
±
3.0dBs
Switch setting:
INPUT SELEST ............................................ S VIDEO or VIDEO
AUDIO LEVEL AUTO/MANUAL .............................. MANUAL
VCR HDV/DV (IN/OUT REC menu) ...................................... DV
AUDIO MODE (AUDIO SET menu) ................................. FS48K
Checking Method
1)
Input the 1kHz, -6dBs signal in the AUDIO IN left and right
jacks.
2) Push STATUS CHECK button and display the audio level
indicator.
3) Turn the AUDIO REC LEVEL CH1 knob from “0” position,
little by little, until the CH1 level indicator indicates “-12dB”.
4) Turn the AUDIO REC LEVEL CH2 knob from “0” position,
little by little, until the CH2 level indicator indicates “-12dB”.
5) Record the signal.
6) Playback the recorded section.
7) Check that the 1kHz signal level is the specified value.
3. E-E Audio Level Check
Mode VTR stop (E-E)
Signal 70Hz, -6dBs signal:
1kHz, -6dBs signal:
20kHz, -6dBs signal:
AUDIO IN left and right jacks
Measurement Point AUDIO OUT left or right jack
Measuring Instrument Audio level meter, digital volt meter
Specified Value -4.0
±
3.0dBs
Switch setting:
INPUT SELEST ............................................ S VIDEO or VIDEO
AUDIO LEVEL AUTO/MANUAL .............................. MANUAL
VCR HDV/DV (IN/OUT REC menu) ...................................... DV
AUDIO MODE (AUDIO SET menu) ................................. FS48K
AUDIO REC LEVEL
..... Position set by “2. Overall Level Characteristics Check”.
Checking Method
1)
Input the 70Hz, -6dBs signal in the AUDIO IN left and right
jacks.
2) Check that the 70Hz signal level is the specified value.
3) Input the 1kHz, -6dBs signal in the AUDIO IN left and right
jacks.
4) Check that the 1kHz signal level is the specified value.
5) Input the 20kHz, -6dBs signal in the AUDIO IN left and right
jacks.
6) Check that the 20kHz signal level is the specified value.