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6-46

DCR-DVD305

Click the 

[AUDIO SYSTEM ADJUSTMENT]

 button on the Mein

Menu screen, and the “AUDIO SYSTEM ADJUSTMENT” screen
in Fig. 6-1-15 will appear.

1

[To Menu]

 button

The Main Menu screen comes back.

2

[Preparation]

 button

Notes for adjustment or jigs used are displayed.

3

[Start]

 button

“Audio Adjustment” starts.

4

[Release Data Setting]

 button

The data setting at the adjustment is cancelled.
During the data setting, the button color changes from “white”
to “red”.
When the data setting is cancelled, the button color returns to
“white”. (Use this button when an error occurred in the audio
adjustment. If the adjustment completed successfully, the data
setting is automatically cancelled and the button color returns
to “white”.)

The adjustment items of audio system adjustment are as listed in
Table 6-1-5. The Automatic Adjustment Program executes the ad-
justment items if the AUDIO Adjustment Start button is clicked.

Accessory 4ch Microphone
Sensitivity Adj. 

0B

0C to 0F

AUDIO
Adjustment

4

3

2

1

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DCR-DVD305

Perform “AUDIO Adjustment” without inserting disc.

[Automatic Adjustment Program execution items and
sequence]
1. Data Setting during AUDIO Adj.
2. Accessory 4ch microphone Adj.
3. Release of Data Setting during Audio Adj.

[Preparation]
Prepare an amplifier built-in speaker for PC and arrange it above
the accessory 4ch microphone of the camcoder.

•

Adjust the speaker position so that it is within 

±

3 cm from the

center of camcoder accessory 4ch microphone at the height of
40 cm.

•

The diaphragm of speaker position should face face down to-
ward the accessory 4ch microphone.

•

The speaker may be held by hand if it is hard to secure.

[Adjusting method]
1) Play back the adjustment sound source file on the PC.
2) Set the speaker volume so that the adjustment signal sound is

heard to the extent of the loudness of talking voices.

3) Click the 

[Start]

 button of the AUDIO Adjustment.

4) The Automatic Adjustment Program executes “1. Data Setting

during Audio Adj.”.

5) If “1. Data Setting during Audio Adj.” completed successfully,

and the items “2. Accessory 4ch microphone Adj.” and “3. Re-
lease of Data Setting during Audio Adj.” will be executed.

6) Upon successful completion of all items of the AUDIO Ad-

justment, the following message is displayed. Click the 

[OK]

button.

In case of adjustment NG, reduce or increase the speaker volume,
and then retry adjustment.
If the Adjustment Program displays a message “Volume too loud”
or “Volume too low”, adjust the speaker volume following the
message.

Amplifier built-in 
speaker for PC

PC

Accessory 
4ch microphone

about 40 cm

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DCR-DVD305

REC MODE (Menu setting) ............................................... LP

Type of disc to use
DVD-RW (VF format)

Connect the audio system measuring instruments in addition to
the video system measuring instruments as shown in Fig. 6-1-17.

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 OUT

 jack

A/V OUT

jack

L

R

Video

Audio (L)

Audio (R)

Mode

Recording (MOVIE mode) and
playback (PLAY/EDIT mode)

Signal

400 Hz, 

−

7.5 dBs signal:

Audio left and right terminal of A/V
OUT jack

Measurement Point

Audio left or right terminal of A/V
OUT jack

Measuring Instrument

Audio level meter

Specified Value

–7.5 

±

 1.0 dBs

Checking Method:
1) Select page: 3, address: E2, set data: 08, and press the PAUSE

button.

2) Input the 400 Hz, –7.5 dBs signal in the audio left and right

terminal of A/V OUT jack.

3) Record the signal.
4) Remove the input signal.
5) Playback the recorded section.
6) Check that the 400 Hz signal level is the specified value.
7) Select page: 3, address: E2, set data: 00, and press the PAUSE

button.

Mode

Recording (MOVIE mode) and
playback (PLAY/EDIT mode)

Signal

400 Hz, –7.5 dBs signal:
Audio left and right terminal of A/V
OUT jack

Measurement Point

Audio left or right terminal of A/V
OUT jack

Measuring Instrument

Audio distortion meter

Specified Value

Below 0.4%
(200 Hz to 6 kHz BPF ON)

Checking Method:
1) Select page: 3, address: E2, set data: 08, and press the PAUSE

button.

2) Input the 400 Hz, –7.5 dBs signal in the audio left and right

terminal of A/V OUT jack.

3) Record the signal.
4) Remove the input signal.
5) Playback the recorded section.
6) Check that the distortion is the specified value.
7) Select page: 3, address: E2, set data: 00, and press the PAUSE

button.

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DCR-DVD305

Mode

Recording (MOVIE mode) and
playback (PLAY/EDIT mode)

Signal

No signal:
Audio left and right teminal of A/V
OUT jack

Measurement Point

Audio left or right terminal of A/V
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: 3, address: E2, set data: 08, and press the PAUSE

button.

2) 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.

3) Record the signal.
4) Playback the recorded section.
5) Remove the jumper wires.
6) Check that the noise level is the specified value.
7) Select page: 3, address: E2, set data: 00, and press the PAUSE

button.