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5-42

Before perform the servo and RF system adjustments, check that
the specified value of “27 MHz Origin Oscillation Adjustment” of
“VIDEO SYSTEM ADJUSTMENT” is satisfied.
And check that the data of page: 0, address: 10 is “00”. If not, set
data: 00 to this address.

Adjusting Procedure:
1.

REEL FG adjustment

2.

PLL f

0

 & LPF f

0

 adjustment

3.

Switching position adjustment

4.

AGC center level and APC & AEQ adjustment

5.

PLL f

0

 & LPF f

0

 fine adjustment

6.

Hi8/Standrd8 switching position adjustment

7.

Cap FG duty adjustment

Compensates the dispersion of the hall elements.

Measurement Point

Display data of page: 3, address: 03

Measuring Instrument

Adjustment remote commander

Adjustment Page

C

Adjustment Address

17, 2F

Specified Value

00 or 01 or 04 or 05

The data of page: 0, address: 10 must be “00”.

1

Close the cassette compartment
without inserting a cassette.

2

0

01

01

Set the data.

3

3

01

1C

Set the data, and press PAUSE
button.

4

3

02

Check that the data changes to
“00”,

5

3

03

Check that the data is “00” or “01”
or “04” or “05”. (Note)

6

0

01

00

Set the data.

If the data is other value, adjustment has errors. (Take an appropriate
remedial measures according to the errors referring to the following
table.)

Data

Contents of defect

02, 03, 06, 07

T reel is defective

08, 09, 0C, 0D

S reel is defective

0A, 0B, 0E, 0F

S reel and T reel are defective

Mode

VTR stop

Measurement Point

Display data of page: 3, address: 02, 03

Measuring Instrument

Adjustment remote commander

Adjustment Page

C

Adjustment Address

1F, 20, 22, 29

Specified Value

Data of page: 3, address: 02 is “00”.
Data of page: 3, address: 03 is “00”.

The data of page: 0, address: 10 must be “00”.

1

0

01

01

Set the data.

2

C

21

CA

Set the data, and press PAUSE
button.

3

3

01

00

Set the data, and press PAUSE
button.

4

3

01

30

Set the data, and press PAUSE
button.

5

3

02

Check that the data changes to
“00” with in 10 sec. (Note2)

6

3

03

Check that the data is “00”.
(Note2)

7

0

01

00

Set the data.

If it isn’t satisfied, select page: C, address: 21, set the following
data, and press the PAUSE button, and repeat steps 3 to 6.

Setting data

When the data of page: C, address: 21 is “CA”.

CE

When the data of page: C, address: 21 is “CE”.

C6

When the data of page: C, address: 21 is “C6”.

D2

When the data of page: C, address: 21 is “D2”

C2

There are errors when it isn’t satisfied even if the above treatment is
done.
If bit2, bit3, bit4, bit5 or bit 6 of the data of page: 3, address: 03 is
“1”, there are errors. For the error contents, see the following table.
(For the bit values, refer to “5-4. SERVICE MODE”, “4-3. 3. Bit
value discrimination”.)

Bit value of page: 3,

Error contents

address: 03 data

bit 2 = 1 or bit 3 = 1

PLL f

0

 fine adjustment is defective

bit 4 = 1 or bit 5 = 1

PLL f

0

 adjustment is defective

bit 6 = 1

LPF f

0

 adjustment is defective

5-43

To obtain normal playback waveform output during the Digital8
playback mode, adjust the switching position.

Mode

VTR playback

Signal

SW/OL reference tape (WR5-2D)

Measurement Point

Display data of page: 3, address: 03

Measuring Instrument

Adjustment remote commander

Adjustment Page

C

Adjustment Address

10, 11, 12, 13

Specified Value

00

The data of page: 0, address: 10 must be “00”.

1

Insert the SW/OL reference tape
and enter the VTR STOP mode.

2

0

01

01

Set the data.

3

C

10

EE

Set the data, and press PAUSE
button.

4

3

21

Check that the data is “02”.
(Note2)

5

3

01

0D

Set the data, and press PAUSE
button.

6

3

02

Check that the data changes to
“00” in the following order.
“0E”

→

“29”

→

“0E”

→

“20”

→

“00”

7

3

03

Check that the data is “00”.
(Note3)

8

C

10

Check that the data is other than
“EE”. (Note4)

9

0

01

00

Set the data.

If the data of page: 3, address: 21 is “72”, the tape top being played.
After playing the tape for 1 to 2 seconds, stop it, perform step 5
and higher.

If the data is other value, adjustment has errors. If bit 0 of the data
is “1”, the A channel is defective. If bit 1 is “1”, the B channel is
defective. Contents of the defect is written into page: C, addresses:
10 and 12. See the following table. (For the bit values, refer to “5-
4. SERVICE MODE”, “4-3. 3. Bit value discrimination”. ) If bit 3
of the data is “1”,the tape end being played, and adjustment has
errors.

If the data is “EE”, rewind the tape and repeat steps 1 to 7.

Data of page: C,

Contents of defect

address: 10

EE

Writing into EEPROM (IC4502) is
defective

E8

Adjustment data is out of range

E7

No data is returned from IC3301

Data of page: C,

Contents of defect

address: 12

E8

Adjustment data is out of range

E7

No data is returned from IC3301

The data of page: 0, address: 10 must be “00”.
Use a Hi8 MP tape.

Mode

Camera recording

Subject

Arbitrary

1

0

01

01

Set the data.

2

8

21

C8

Set the data.

3

Record the camera signal for three
minutes.

Mode

Playback

Signal

Recorded signal at “Preparations before
adjustments”

Measurement Point

Pin qh of CN1108 (RF MON) (Note 1)
Ext. trigger: Pin qd of CN1108 (RF
SWP)

Measuring Instrument

Oscilloscope

Adjustment Page

C

Adjustment Address

1E

Specified Value

The data of page: 3, address: 03 is “00”

Connect a 75

Ω

 resistor between Pin qh and Pin w; (GND) of

CN1108.
75

Ω

 resistor (Parts code: 1-247-804-11)

1

Playback the recorded signal at
“Preparations before adjustments”

2

0

01

01

Set the data.

3

<2>

<4D>

<40> Set the data. (Note2)

[7]

[62]

[01]

4

3

33

08

Set the data.

5

Confirm that the playback RF
signal is stable. (Fig. 5-3-4.)

6

3

01

23

Set the data, and press PAUSE
button.

7

3

02

Check that the data is “00”.

8

3

03

Check that the data is “00”.
(Note3)

9

Perform “APC & AEQ Adjustment”.

< >: DCR-TRV240, [  ]: DCR-TRV340

If the data of page: 3, address: 03 is other than “00”, adjustment
has errors.

5-44

Mode

Playback

Signal

Recorded signal at “Preparations
before adjustments”

Measurement Point

Pin qh of CN1108 (RF MON) (Note 1)
Ext. trigger: Pin qd of CN1108 (RF
SWP)

Measuring Instrument

Oscilloscope

Adjustment Page

C

Adjustment Address

18, 19, 1B, 1C, 21, 2C

Specified Value

The data of page: 3, address: 03 is “00”

Connect a 75

Ω

 resistor between Pin qh and Pin w; (GND) of

CN1108.
75

Ω

 resistor (Parts code: 1-247-804-11)

The  “AGC Center Level Adjustment” must have already been
completed before starting this adjustment.

1

0

01

01

Set the data.

2

C

18

20

Set the data, and press PAUSE
button.

3

C

19

20

Set the data, and press PAUSE
button.

4

C

1B

25

Set the data, and press PAUSE
button.

5

C

1C

25

Set the data, and press PAUSE
button.

6

C

21

CA

Set the data, and press PAUSE
button.

7

C

2C

03

Set the data, and press PAUSE
button.

8

Playback the recorded signal at
“Preparations before adjustments”

9

<2>

<4D>

<40> Set the data. (Note3)

[7]

[62]

[01]

10

3

33

08

Set the data.

11

Confirm that the playback RF
signal is stable. (Fig. 5-3-4.)

12

3

01

07

Set the data, and press PAUSE
button.

13

3

02

Check that the data changes from
“07” to “00” in about 20 seconds
after pressing PAUSE button.

14

3

03

Check that the data is “00”.
(Note4)

15

Perform “Processing after
Completing Adjustments”.

< >: DCR-TRV240, [  ]: DCR-TRV340

If the data is other than “00”, adjustment has errors.

1

0

01

01

Set the data.

2

<2>

<4D>

<00> Set the data. (Note)

[7]

[62]

[00]

3

3

33

00

Set the data.

4

8

21

00

Set the data, and press PAUSE
button.

5

0

01

00

Set the data.

< >: DCR-TRV240, [  ]: DCR-TRV340

Fig. 5-3-4.

qd

qh

5-45

Mode

VTR stop

Signal

Arbitrary

Measurement Point

Display data of page: 3, address: 02, 03

Measuring Instrument

Adjustment remote commander

Adjustment Page

C

Adjustment Address

1F, 20, 22, 29

Specified Value

Display data of page: 3, address: 02 is
“00”.
Display data of page: 3, address: 03 is
“00”.

The data of page: 0, address: 10 must be “00”.

1

0

01

01

Set the data.

2

3

01

30

Set the data, and press PAUSE
button.

3

3

02

Check that the data changes to
“00” with in 10 sec. (Note2)

4

3

03

Check that the data is “00”.
(Note3)

5

0

01

00

Set the data.

If it isn’t satisfied, there are errors.

If the data of page: 3, address: 03 is other than “00”, there are
errors. For the error contents, see the following table. (For the bit
values, refer to “5-4. SERVICE MODE”,  “4-3. 3. Bit value
discrimination”.)

If deviated in this case causes switching noise or jitter on the Hi8/
Standard8 mode played back screen.

Mode

Playback

Signal

Hi8/Standard8 alignment tape:
  For tracking adjustment (WR5-1NP)

Measurement Point

CH1: Pin 8 of CN1108 (RF SWP)
CH2: Pin 5 of CN1108 (PB RF)

Measuring Instrument

Oscilloscope

Adjustment Page

C

Adjustment Address

40, 41

Specified Value

t1 = 0 ± 10 

µ

sec

The data of page: 0, address: 10 must be “00”.

1

Set to the stop mode.

2

0

01

01

Set the data.

3

C

3E

40

Set the data, and press PAUSE
button.

4

<2>

<4D>

<80> Set the data. (Note2)

[7]

[62]

[02]

5

Set to the playback mode.

6

C

40

Change the data and minimize
“t1”. (Coarse adjustment)

7

C

40

Press PAUSE button

8

C

41

Change the data and adjust so that
the switching position (t1)
becomes the specified value. (Fine
adjustment)

9

C

41

Press PAUSE button

10

C

3E

00

Set the data, and press PAUSE
button.

11

<2>

<4D>

<00> Set the data. (Note2)

[7]

[62]

[00]

12

0

01

00

Set the data.

< >: DCR-TRV240, [  ]: DCR-TRV340

Fig. 5-3-5.

±

µ

Bit value of page: 3,

Error contents

address: 03

bit 2 = 1 or bit 3 = 1

PLL f

0

 fine adjustment is defective

bit 4 = 1 or bit 5 = 1

PLL f

0

 adjustment is defective

bit 6 = 1

LPF f

0

 adjustment is defective