1. Playback Level Check4. Overall Noise Level Check
ModeVTR playbackModeVTR recording and playback
SignalAudio operation check tapeSignalNo signal: Insert a shorting plug in the
For audio operation checkAUDIO VIDEO jack
(XH5-3 (NTSC))Measurement PointAudio left or right terminal of AUDIO
(XH5-3P (PAL))VIDEO jack
Measurement PointAudio left or right terminal of AUDIOMeasuring Instrument Audio level meter
VIDEO jack
Specified ValueBelow -45dBs
Measuring Instrument Audio level meter and frequency( IHF-A filter ON , 20kHz LPF ON )
counter
Specified Value32kHz mode : 1kHz, +3.0 ? 2.0dBsChecking Method:
48kHz mode : 1kHz, +3.0 ? 2.0dBs1) Insert a shorting plug in the AUDIO VIDEO jack.
44.1kHz mode :2) Record in the PLAY/EDIT mode.
The 7.35kHz signal level during3) Playback the recorded section.
EMP OFF is +2.0 ? 2.0dBs.4) Check that the distortion is the specified value.
The 7.35kHz signal level during
EMP ON is -6 ? 2 dB from the5. Overall Separation Check
signal level during EMP OFF.ModeVTR recording and playback
Checking Method:Signal400Hz, -7.5dBs signal: AUDIO
VIDEO jack <right>[left]
1) Check that the playback signal level is the specified value.(Connect the AUDIO VIDEO jack
2. Overall Level Characteristics Check<left>[right] to GND )
Measurement PointAudio <left>[right] terminal of
ModeVTR recording and playback
AUDIO VIDEO jack
Signal400Hz, -7.5dBs signal: AUDIOMeasuring Instrument Audio level meter
VIDEO jack left and right
Specified ValueBelow -40dBs
Measurement PointAudio left or right terminal of AUDIO( IHF-A filter ON)
VIDEO jack
< >: Left channel check
Measuring Instrument Audio level meter[ ]: Left channel check
Specified Value? 3.0dBs-7.5
Checking Method:
Checking Method:1) Input the 400Hz, -7.5dBs signal in the <right>[left] terminal
1) Input the 400Hz, -7.5dBs signal in the AUDIO VIDEO jacof the k.AUDIO VIDEO jack only.
2) Record in the PLAY/EDIT mode.2) Record in the PLAY/EDIT mode.
3) Playback the recorded section.3) Playback the recorded section.
4) Check that the 400Hz signal level is the specif4) ied vCheck that the signal lealue.vel of the audio <left>[right] terminal
is the specified value.
3. Overall Distortion Check
ModeVTR recording and playback
Signal400Hz, -7.5dBs signal: AUDIO
VIDEO jack left and right
Measurement PointAudio left or right terminal of AUDIO
VIDEO jack
Measuring Instrument Audio distortion meter
Specified ValueBelow 0.4%
(200Hz to 6kHz BPF ON)
Checking Method:
1) Input the 400Hz, -7.5dBs signal in the AUDIO VIDEO jack.
2) Record in the PLAY/EDIT mode.
3) Playback the recorded section.
4) Check that the distortion is the specified value.
DCR-PC53E/PC55/PC55E
6-48 |
ACEC
