Read Sony DCR-HC47E / DCR-HC48 / DCR-HC48E (serv.man4) Service Manual online
6-60
DCR-HC47E/HC48/HC48E_ADJ
5.
Overall Separation Check
Mode
Recording (CAMERA-TAPE) and
playback (PLAY/EDIT mode)
playback (PLAY/EDIT mode)
Signal
400 Hz,
−7.5 dBs signal:
Audio <right> [left] terminal of A/V
OUT jack
No signal:
Audio <left> [right] terminal of A/V
OUT jack
OUT jack
No signal:
Audio <left> [right] terminal of A/V
OUT jack
Measurement Point
Audio <left> [right] terminal of A/V
OUT jack
OUT jack
Measuring Instrument
Audio level meter
Specified Value
Below
−40 dBs
< > : Left channel check
[ ] : Right channel check
[ ] : Right channel check
Checking Method:
1) Select page: 7, address: 01, and set data: 94
2) Select page: 7, address: 04, and set data: 0E.
3) Select page: 7, address: 00, set data: 01, and press the PAUSE
1) Select page: 7, address: 01, and set data: 94
2) Select page: 7, address: 04, and set data: 0E.
3) Select page: 7, address: 00, set data: 01, and press the PAUSE
(Write) button.
4) Select page: 7, address: 02, and check that the changes to “01”.
5) Input the 400 Hz,
5) Input the 400 Hz,
−7.5 dBs signal in the audio <right> [left]
terminal of A/V OUT jack.
Connect the audio <left> [right] terminal of A/V OUT jack to
GND using a jumper wire.
Connect the audio <left> [right] terminal of A/V OUT jack to
GND using a jumper wire.
6) Record the signal.
7) Remove the input signal, and remove the jumper wire.
8) Playback the recorded section.
9) Check that the signal level of the audio <left> [right] terminal
7) Remove the input signal, and remove the jumper wire.
8) Playback the recorded section.
9) Check that the signal level of the audio <left> [right] terminal
is the specified value.
10) Select page: 7, address: 01, and set data: 94.
11) Select page: 7, address: 04, and set data: FF.
12) Select page: 7, address: 00, set data: 01, and press the PAUSE
11) Select page: 7, address: 04, and set data: FF.
12) Select page: 7, address: 00, set data: 01, and press the PAUSE
(Write) button.
13) Select page: 7, address: 02, and check that the change to “01”.
3.
Overall Distortion Check
Mode
Recording (CAMERA-TAPE) and
playback (PLAY/EDIT mode)
playback (PLAY/EDIT mode)
Signal
400 Hz, –7.5 dBs signal:
Audio left and right terminal of A/V
OUT jack
Audio left and right terminal of A/V
OUT jack
Measurement Point
Audio left or right terminal of A/V
OUT jack
OUT jack
Measuring Instrument
Audio distortion meter
Specified Value
Below 0.4%
(200 Hz to 6 kHz BPF ON)
(200 Hz to 6 kHz BPF ON)
Checking Method:
1) Select page: 7, address: 01, and set data: 94
2) Select page: 7, address: 04, and set data: 0E.
3) Select page: 7, address: 00, set data: 01, and press the PAUSE
1) Select page: 7, address: 01, and set data: 94
2) Select page: 7, address: 04, and set data: 0E.
3) Select page: 7, address: 00, set data: 01, and press the PAUSE
(Write) button.
4) Select page: 7, address: 02, and check that the changes to “01”.
5) Input the 400 Hz, –7.5 dBs signal in the audio left and right
5) Input the 400 Hz, –7.5 dBs signal in the audio left and right
terminal of A/V OUT jack.
6) Record the signal.
7) Remove the input signal.
8) Playback the recorded section.
9) Check that the distortion is the specified value.
10) Select page: 7, address: 01, and set data: 94.
11) Select page: 7, address: 04, and set data: FF.
12) Select page: 7, address: 00, set data: 01, and press the PAUSE
7) Remove the input signal.
8) Playback the recorded section.
9) Check that the distortion is the specified value.
10) Select page: 7, address: 01, and set data: 94.
11) Select page: 7, address: 04, and set data: FF.
12) Select page: 7, address: 00, set data: 01, and press the PAUSE
(Write) button.
13) Select page: 7, address: 02, and check that the change to “01”.
4.
Overall Noise Level Check
Mode
Recording (CAMERA-TAPE) and
playback (PLAY/EDIT mode)
playback (PLAY/EDIT mode)
Signal
No signal:
Audio left and right terminal of A/V
OUT jack
Audio left and right terminal of A/V
OUT jack
Measurement Point
Audio left or right terminal of A/V
OUT jack
OUT jack
Measuring Instrument
Audio level meter
Specified Value
Below
−45 dBs
(IHF-A filter ON, 20 kHz LPF ON)
Checking Method:
1) Select page: 7, address: 01, and set data: 94.
2) Select page: 7, address: 04, and set data: 0E.
3) Select page: 7, address: 00, set data: 01, and press the PAUSE
1) Select page: 7, address: 01, and set data: 94.
2) Select page: 7, address: 04, and set data: 0E.
3) Select page: 7, address: 00, set data: 01, and press the PAUSE
(Write) button.
4) Select page: 7, address: 02, and check that the change to “01”.
5) Connect the audio left terminal of A/V OUT jack to GND us-
5) Connect the audio left terminal of A/V OUT jack to GND us-
ing a jumper wire.
Connect the audio right terminal of A/V OUT jack to GND
using a jumper wire.
Connect the audio right terminal of A/V OUT jack to GND
using a jumper wire.
6) Record the signal.
7) Remove the jumper wires.
8) Playback the recorded section.
9) Check that the noise level is the specified value.
10) Select page: 7, address: 01, and set data: 94.
11) Select page: 7, address: 04, and set data: FF.
12) Select page: 7, address: 00, set data: 01, and press the PAUSE
7) Remove the jumper wires.
8) Playback the recorded section.
9) Check that the noise level is the specified value.
10) Select page: 7, address: 01, and set data: 94.
11) Select page: 7, address: 04, and set data: FF.
12) Select page: 7, address: 00, set data: 01, and press the PAUSE
(Write) button.
13) Select page: 7, address: 02, and check that the change to “01”.
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