Sony DCR-HC94E / DCR-HC96 / DCR-HC96E (serv.man4) Service Manual ▷ View online
6-59
DCR-HC94E/HC96/HC96E_ADJ
3-5.
AUDIO SYSTEM ADJUSTMENTS
(DCR-HC94E)
(DCR-HC94E)
[Connecting the measuring instruments for the audio]
Connect the audio system measuring instruments in addition to
the video system measuring instruments as shown in Fig. 6-3-8.
Connect the audio system measuring instruments in addition to
the video system measuring instruments as shown in Fig. 6-3-8.
Fig. 6-3-8
1.
Playback Level Check
Mode
Playback (PLAY/EDIT mode)
Signal
Alignment tape:
For audio operation check
(XH5-3P)
(XH5-3P)
Measurement Point
Audio left or right terminal of A/V
OUT jack
OUT jack
Measuring Instrument
Audio level meter and frequency
counter
counter
Specified Value
32 kHz mode: 1 kHz, + 3.0
± 2.0 dBs
48 kHz mode: 1 kHz, + 3.0
± 2.0 dBs
44.1 kHz mode:
The 7.35 kHz signal level during EMP
OFF is +2.0
The 7.35 kHz signal level during EMP
OFF is +2.0
± 2.0 dBs.
The 7.35 kHz signal level during EMP
ON is
ON is
−6 ± 2 dB from the signal level
during EMP OFF.
Checking Method:
1) Check that the playback signal level is the specified value.
1) Check that the playback signal level is the specified value.
2.
Overall Level Characteristics 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
OUT jack
Measurement Point
Audio left or right terminal of A/V
OUT jack
OUT jack
Measuring Instrument
Audio level meter
Specified Value
–7.5
± 3.0 dBs
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 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 400 Hz signal level is the specified value.
10) Select page: 7, address: 01, and set data: 94.
11) Select page: 7, address: 04, and set data: 0F
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 400 Hz signal level is the specified value.
10) Select page: 7, address: 01, and set data: 94.
11) Select page: 7, address: 04, and set data: 0F
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 changes to “01”.
Audio
Video
oscillator
Pattern generator
Video output
(75
(75
Ω)
Attenuator
600
Ω
600
Ω (270 Ω (1-249-410-11) +330 Ω (1-249-411-11))
Main unit
Main unit
47 k
Ω
47 k
Ω: 1-249-437-11
Audio level meter or
distortion meter
TV monitor
A/V OUT
jack
A/V OUT
jack
L
R
Video
Audio (L)
Audio (R)
In Recording (CAMERA-TAPE mode)
In Playback (PLAY/EDIT mode)
6-60
DCR-HC94E/HC96/HC96E_ADJ
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: 0F
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: 0F
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 changes 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 teminal of A/V
OUT jack
Audio left and right teminal 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 changes 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 teminal of A/V OUT jack to GND
using a jumper wire.
Connect the audio right teminal 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: 0F
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: 0F
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 changes to “01”.
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: 0F
12) Select page: 7, address: 00, set data: 01, and press the PAUSE
11) Select page: 7, address: 04, and set data: 0F
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 changes to “01”.
6-61
DCR-HC94E/HC96/HC96E_ADJ
3-6.
AUDIO SYSTEM ADJUSTMENTS
(Expect DCR-HC94E)
(Expect DCR-HC94E)
[Connecting the measuring instruments for the audio]
Connect the audio system measuring instruments in addition to
the video system measuring instruments as shown in Fig. 6-3-9.
Connect the audio system measuring instruments in addition to
the video system measuring instruments as shown in Fig. 6-3-9.
Fig. 6-3-9
How to enter the recording:
1) Slide the POWER switch down repeatedly to PLAY/EDIT
1) Slide the POWER switch down repeatedly to PLAY/EDIT
mode.
2) Touch the LCD screen [P-MENU]
t [REC CTRL].
Audio
oscillator
Attenuator
600
Ω
600
Ω (270 Ω (1-249-410-11) +330 Ω (1-249-411-11))
Main unit
Main unit
47 k
Ω
47 k
Ω: 1-249-437-11
Audio level meter or
distortion meter
TV monitor
A/V jack
A/V jack
L
R
Video
Audio (L)
Audio (R)
In Recording (PLAY/EDIT mode)
In Playback (PLAY/EDIT mode)
1.
Playback Level Check
Mode
Playback (PLAY/EDIT mode)
Signal
Alignment tape:
For audio operation check
(XH5-3 (NTSC))
(XH5-3P (PAL)))
(XH5-3 (NTSC))
(XH5-3P (PAL)))
Measurement Point
Audio left or right terminal of A/V
jack
jack
Measuring Instrument
Audio level meter and frequency
counter
counter
Specified Value
32 kHz mode: 1 kHz, +3.0
± 2.0 dBs
48 kHz mode: 1 kHz, +3.0
± 2.0 dBs
44.1 kHz mode:
The 7.35 kHz signal level during EMP
OFF is +2.0
The 7.35 kHz signal level during EMP
OFF is +2.0
± 2.0 dBs.
The 7.35 kHz signal level during EMP
ON is
ON is
−6 ± 2 dB from the signal level
during EMP OFF.
Note: NTSC model: DCR-HC96
PAL model: DCR-HC96E
Checking Method:
1) Check that the playback signal level is the specified value.
1) Check that the playback signal level is the specified value.
2.
Overall Level Characteristics Check
Mode
Recording and playback (PLAY/
EDIT mode)
EDIT mode)
Signal
400 Hz,
−7.5 dBs signal:
Audio left and right terminal of A/V
jack
jack
Measurement Point
Audio left or right terminal of A/V
jack
jack
Measuring Instrument
Audio level meter
Specified Value
–7.5
± 3.0 dBs
Checking Method:
1) Input the 400 Hz, –7.5 dBs signal in the audio left and right
1) Input the 400 Hz, –7.5 dBs signal in the audio left and right
terminal of A/V jack.
2) Record the signal.
3) Remove the input signal.
4) Playback the recorded section.
5) Check that the 400 Hz signal level is the specified value.
3) Remove the input signal.
4) Playback the recorded section.
5) Check that the 400 Hz signal level is the specified value.
6-62
DCR-HC94E/HC96/HC96E_ADJ
5.
Overall Separation Check
Mode
Recording and playback (PLAY/
EDIT mode)
EDIT mode)
Signal
400 Hz,
−7.5 dBs signal:
Audio <right> [left] terminal of A/V
jack
No signal:
Audio <left> [right] terminal of A/V
jack
jack
No signal:
Audio <left> [right] terminal of A/V
jack
Measurement Point
Audio <left> [right] terminal of A/V
jack
jack
Measuring Instrument
Audio level meter
Specified Value
Below
−40 dBs
< > : Left channel check
[ ] : Right channel check
[ ] : Right channel check
Checking Method:
1) Input the 400 Hz,
1) Input the 400 Hz,
−7.5 dBs signal in the audio <right> [left]
terminal of A/V jack.
Connect the audio <left> [right] terminal of A/V jack to GND
using a jumper wire.
Connect the audio <left> [right] terminal of A/V jack to GND
using a jumper wire.
2) Record the signal.
3) Remove the input signal, and remove the jumper wire.
4) Playback the recorded section.
5) Check that the signal level of the audio <left> [right] terminal
3) Remove the input signal, and remove the jumper wire.
4) Playback the recorded section.
5) Check that the signal level of the audio <left> [right] terminal
is the specified value.
3.
Overall Distortion Check
Mode
Recording and playback (PLAY/
EDIT mode)
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
jack
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) Input the 400 Hz, –7.5 dBs signal in the audio left and right
1) Input the 400 Hz, –7.5 dBs signal in the audio left and right
terminal of A/V jack.
2) Record the signal.
3) Remove the input signal.
4) Playback the recorded section.
5) Check that the distortion is the specified value.
3) Remove the input signal.
4) Playback the recorded section.
5) Check that the distortion is the specified value.
4.
Overall Noise Level Check
Mode
Recording and playback (PLAY/
EDIT mode)
EDIT mode)
Signal
No signal:
Audio left and right teminal of A/V
jack
Audio left and right teminal of A/V
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) Connect the audio left terminal of A/V jack to GND using a
1) Connect the audio left terminal of A/V jack to GND using a
jumper wire.
Connect the audio right teminal of A/V jack to GND using a
jumper wire.
Connect the audio right teminal of A/V jack to GND using a
jumper wire.
2) Record the signal.
3) Remove the jumper wires.
4) Playback the recorded section.
5) Check that the noise level is the specified value.
3) Remove the jumper wires.
4) Playback the recorded section.
5) Check that the noise level is the specified value.
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