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6-46

DCR-TRV380/TRV480/TRV480E

Before performing the video system adjustments, check that the
data of page: 0, address: 10 is “00”.
If not, select  page: 0, address: 10, and set data “00”.
Video system adjustments must be performed in the following or-
der.

Adjusting Procedure:
1. 27 MHz origin oscillation adjustment
2. Composite video out level adjustment
3. Hi8/Standard8 Y/C output level setting (Note)
4. Hi8/Standard8 AFC f

0

 adjustment (Note)

DCR-TRV480/TRV480E only

Set the frequency of the clock for synchronization.
If deviated, the synchronization will be disrupted and the color
will become inconsistent.

Mode

CAMERA

Subject

Arbitrary

Measurement Point

Pin <z.,  of IC2201

Measuring Instrument

Frequency counter

Adjustment Page

F

Adjustment Address

10

Specified value

f = 13500000 

± 68 Hz

Check that the data of page: 0, address: 10 is “00”.

Order Page Address Data

Procedure

1

0

01

01

2

F

10

Change the data and set the
frequency (f) to the specified
value.

3

F

10

Press PAUSE button.

4

0

01

00

IC2201

54

55

108

109

162

163

216

1

198

Measurement
Point

VC-345 BOARD (SIDE A)

6-47

DCR-TRV380/TRV480/TRV480E

Mode

CAMERA

Subject

Arbitrary

Measurement Point

Video terminal of A/V jack
(75 

Ω terminated)

Measuring Instrument

Oscilloscope

Adjustment Page

C

Adjustment Address

25, 26, 27

Specified value

Sync level:

A = 1 V 

± 20 mVp-p (NTSC)

A = 1 V 

± 20 mVp-p (PAL)

Cr level:

B = 714 

± 14 mVp-p (NTSC)

B = 700 

± 14 mVp-p (PAL)

Cr level:

C = 714 

± 14 mVp-p (NTSC)

C = 700 

± 14 mVp-p (PAL)

Burst level:

D = 286 

± 6 mVp-p (NTSC)

D = 300 

± 6 mVp-p (PAL)

Check that the data of page: 0, address: 10 is “00”.

NTSC model: DCR-TRV380/TRV480
PAL model: DCR-TRV480E

Order Page Address Data

Procedure

1

0

01

01

2

8

A0

Set the bit value of bit 3 to “1”,
and press PAUSE button.
(Note 3)

3

3

0C

02

Press PAUSE button.

4

C

25

Change the data and set the Y
signal level (A) to the
specified value.

5

C

25

Press PAUSE button.

6

C

26

Change the data and set the
Cr signal level (B) to the
specified value.

7

C

26

Press PAUSE button.

8

C

27

Change the data and set the
Cb signal level (C) to the
specified value.

9

C

27

Press PAUSE button.

10

Check the burst signal (D) to
the specified value.

11

8

A0

Set the bit value of bit 3 to “0”,
and press PAUSE button.
(Note 3)

12

3

0C

00

Press PAUSE button.

13

0

01

00

For the bit values, refer to  “6-4. SERVICE MODE”, “4-
3. 3. Bit Value Discrimination”.

H

A

B

0.28 

µ

sec (NTSC)

0.23 

µ

sec (PAL)

0.28 

µ

sec (NTSC)

0.23 

µ

sec (PAL)

C

D

6-48

DCR-TRV380/TRV480/TRV480E

Adjust the pull-in range of the clock generator (IC2201) for A/D
conversion during Hi8/Standard8 playback.

Mode

VTR stop (PLAY/EDIT mode)

Signal

No signal

Measurement Point

Displayed data of page: 3, address:
9D

Measuring Instrument

Adjusting remote commander

Adjustment Page

C

Adjustment Address

34

Specified value

The data of page: 3, address: 9D is
“7C” to ”84”.

Check that the data of page: 0, address: 10 is “00”.

Order Page Address Data

Procedure

1

0

01

01

2

C

34

30

Press PAUSE button.

3

A

10

02

Press PAUSE button.

4

3

0D

04

Press PAUSE button.

5

3

93

04

6

3

9E

01

7

Wait for 1.5 second.

8

3

01

82

Press PAUSE button. (Note 3)

9

3

02

Check the data changes to
“00”.

10

3

03

Check the data is “00”.

11

3

9D

Check that the data satisfied
the specified value.

12

3

0D

00

Press PAUSE button.

13

3

93

00

14

3

9E

00

15

A

10

00

Press PAUSE button.

16

0

01

00

For the bit value, refer to “6-4. SERVICE MODE”, “4-3.
3. Bit Value Discrimination”.

The adjustment data will be automatically input to page:
C, address: 34.

Set the Y/C signal output level during Hi8/Standard8 playback
mode.

Mode

VTR stop (PLAY/EDIT mode)

Signal

No signal

Adjustment Page

C

Adjustment Address

35, 36

Check that the data of page: 0, address: 10 is “00”.

Perform this adjustment when IC2201 or IC4502 is re-
placed.

Order Page Address Data

Procedure

1

0

01

01

2

A

10

02

Press PAUSE button.

3

3

9E

01

4

3

A4

Check the data.
When the data is “53”, proceed
to step 5.
When the data is “03”, proceed
to step 8.

5

C

35

Set the following data and
press PAUSE button.
69: NTSC model
65: PAL model

6

C

36

Set the following data and
press PAUSE button.
64: NTSC model
72: PAL model

7

Proceed to step 10.

8

C

35

A0

Press PAUSE button.

9

C

36

Set the following data and
press PAUSE button.
AA: NTSC model
B8: PAL model

10

3

9E

00

11

A

10

00

Press PAUSE button.

12

0

01

00

6-49

DCR-TRV380/TRV480/TRV480E

Sets the BPF passing frequency of IC5401 so that the AFM signal
can separate from the playback RF signal properly. If deviated.
the mono/stereo mode will be differentiated incorrectly, and noises
and distortions will increase during high volume playback.

Mode

Playback (PLAY/EDIT mode)

Signal

Hi8/Standard  alignment tape:

For BPF adjustment
(WR5-11NS (NTSC))
(WR5-11CS (PAL))

Measurement Point

Audio left or right terminal of A/V
jack

Measuring Instrument

Distortion meter

Adjustment Page

C

Adjustment Address

3A

Specified Value

The Main and Sub channel distortion
rate should be almost the same
(within 

± 1%) and minimum.

Check that the data of page: 0, address: 10 is “00”.

Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Set the MULTI sound switch (menu display) to “2”.
3) Select page: C, address: 3A, change the data and minimize the

distortion rate.

4) Press the PAUSE button of the adjustment remote commander.
5) Set the MULTI sound switch (menu display) to “1”.
6) Select page: C, address: 3A, change the data and minimize the

distortion rate.

7) Press the PAUSE button of the adjustment remote commander.
8) Repeat steps 2) to 7) and set the data of address: 3A so that the

distortions rates when the MULTI sound switch is set to “2”
and set to “1” respectively are almost the same and minimum.

9) Press the PAUSE button of the adjustment remote commander.
10) Select page: 0, address: 01, and set data: 00.
11) Set the MULTI sound switch to “STEREO”.

Before performing the audio system adjustments, check that the
data of page: 0, address: 10 is “00”.
If not, select  page: 0, address: 10, and set data “00”.

Connect the audio system measuring instruments in addition to
the video system measuring instruments as shown in Fig. 6-3-7.

1) Hi8/Standard8 AFM BPF f

0

 adjustment (Note)

2) Hi8/Standard8 AFM 1.5 MHz deviation adjustment (Note)
3) Hi8/Standard8 AFM 1.7 MHz deviation adjustment (Note)
4) Digital8 playback level check

DCR-TRV480/TRV480E only

Main unit

47 k 

Ω

47 k 

Ω

: 1-249-437-11

Audio level meter or

distortion meter

TV monitor

A/V jack

Video

Audio (L)

Audio (R)