5-25
GV-D1000/D1000E
4. Overall Noise Level Check
Mode
Recording and playback
Signal
No signal: Audio terminal left and
right of AUDIO/VIDEO INPUT jack
Measurement Point
AUDIO OUT jack LEFT or RIGHT
Measuring Instrument
Audio level meter
Specified Value
Below –45dBs
(IHF-A filter ON, 20kHz LPF ON)
Checking Method:
1)
Connect the audio terminal left of AUDIO/VIDEO INPUT jack
and its ground terminal with a jumper wire.
2)
Connect the audio terminal right of AUDIO/VIDEO INPUT
jack and its ground terminal with a jumper wire.
3)
Record the signal.
4)
Playback the recorded section.
5)
Check that the noise level is the specified value.
6)
Remove the jumper wires.
5. Overall Separation Check
Mode
Recording and playback
Signal
No signal: Audio terminal <left> [right]
of AUDIO/VIDEO INPUT jack
400Hz, –7.5dBs signal: Audio terminal
<right> [left] of AUDIO/VIDEO
INPUT jack
Measurement Point
AUDIO OUT jack <LEFT> [RIGHT]
Measuring Instrument
Audio level meter
Specified Value
Below –40dBs
< >: Left channel check
[ ]: Right channel check
Checking Method:
1)
Connect the audio terminal <left> [right] of AUDIO/VIDEO
INPUT jack and its ground terminal with a jumper wire.
2)
Input the 400Hz, –7.5dBs signal in the audio terminal <right>
[left] of AUDIO/VIDEO INPUT jack.
3)
Record the signal.
4)
Playback the recorded section.
5)
Check that the signal level of the AUDIO OUT <LEFT>
[RIGHT] jack is the specified value.
6)
Remove the jumper wires.
Summary of Contents for GV-D1000E - Digital Video Cassette Recorder
Page 55: ...Schematic diagram of the MS 95 board are not shown Pages from 4 43 to 4 52 are not shown ...
Page 66: ...Printed wiring board of the MS 95 board are not shown Pages from 4 71 to 4 72 are not shown ...
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Page 74: ...Mounted parts location of the MS 95 board is not shown Page 4 80 is not shown ...
Page 75: ...5 1 GV D1000 D1000E SECTION 5 ADJUSTMENTS COVER COVER ...