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5-35

Set the PSIG signal level to an appropriate level.

Mode

VTR stop

Signal

No signal

Measurement Point

Pin 6 of CN3104 (PSIG)

Measuring Instrument

Oscilloscope

Adjustment Page

C

Adjustment Address

89

Specified Value

A = 5.00 ± 0.05V

1

0

01

01

Set the data.

2

C

89

Change the data and set the PSIG
signal level (A) to the specified
value.
(The data should be “00” to “7F”.)

3

C

89

Press PAUSE button.

4

0

01

00

Set the data.

Set the level of the VIDEO signal for driving the LCD to the specified
value. If deviated, the screen image will be blackish or saturated
(whitish).

Mode

VTR stop

Signal

No signal

Measurement Point

Pin 1 of CN3104 (VG)

Measuring Instrument

Oscilloscope

Adjustment Page

C

Adjustment Address

8C

Specified Value

A = 3.70 ± 0.05V

1

0

01

01

Set the data.

2

C

8C

Change the data and set the
voltage (A) between the 3 steps
peak and pedestal to the specified
value.
(The data should be “00” to “7F”.)

3

C

8C

Press PAUSE button.

4

0

01

00

Set the data.

5

Check that the specified value of
“Bright Adjustment” is satisfied.

Fig. 5-1-20.

Fig. 5-1-21.

5-36

Set the video signal center level of LCD panel to an appropriate
level.

Mode

VTR stop

Signal

No signal

Measurement Point

Pin 1 of CN3104 (VG)

Measuring Instrument

Digital voltmeter

Adjustment Page

C

Adjustment Address

8D

Specified Value

A = 7.00 ± 0.05Vdc

1

0

01

01

Set the data.

2

C

8D

Change the data and set the DC
voltage (A) to the specified value.
(The data should be “00” to “7F”.)

3

C

8D

Press PAUSE button.

4

0

01

00

Set the data.

Set the DC bias of the common electrode drive signal of LCD to the
specified value.
If deviated, the LCD display will move, producing flicker and
conspicuous vertical lines.

Mode

VTR stop

Signal

No signal

Measurement Point

Check on LCD display

Measuring Instrument

Adjustment Page

C

Adjustment Address

86

Specified Value

The brightness difference between the
section A and section B is minimum.

This adjustment should be carried out upon completion of the
following adjustments.
Bright adjustment, Black limit adjustment, Contrast adjustment,
Center level adjustment

1

0

01

01

Set the data.

2

C

86

Change the data so that the
brightness of the section A and
that of the section B is equal.
(The data should be “80” to “BF”.)

3

C

86

Subtract 1 from the data.

4

C

86

Press PAUSE button.

5

0

01

00

Set the data.

Fig. 5-1-22.

A

A

A

A

B

B

B

B

5-37

Correct the white balance.
If deviated, the reproduction of the LCD screen may degenerate.

Mode

VTR stop

Signal

No signal

Measurement Point

Check on LCD screen

Measuring Instrument

Adjustment Page

C

Adjustment Address

8A, 8B

Specified Value

The LCD screen should not be colored.

Check the white balance only when replacing the following parts.
If necessary, adjust them.
1. LCD panel
2. Light induction plate
3. IC3101

1

0

01

01

Set the data.

2

C

8A

85

Set the data, and press PAUSE
button.

3

C

8B

86

Set the data, and press PAUSE
button.

4

C

8B

Check that the LCD screen is not
colored. If not colored, proceed to
step 10.

5

C

8A

Change the data so that the LCD
screen is not colored.

6

C

8A

Press PAUSE button.

7

C

8B

Change the data so that the LCD
screen is not colored.

8

C

8B

Press PAUSE button.

9

C

8B

If the LCD screen is colored,
repeat steps 5 to 9.

10

0

01

00

Set the data.

5-38

For detail of mechanism section adjustments, checks, and
replacement of mechanism parts, refer to the separate volume
“MICRO MV MECHANICAL ADJUSTMENT MANUAL 1
 V Mechanism ”.

Connect the adjustment remote commander to A/V jack via the
multi-cable for service (J-6082-535- A).

1)

Connect the adjustment remote commander.

2)

Turn on the HOLD switch of the adjustment remote
commander.

3)

Close the cassette compartment without loading a cassette and
complete loading.

4)

Select page: 0, address: 01, and set data: 01.

5)

Select page: 9, address: 74, set data: 01, and press the PAUSE
button.

6)

Select page: 9, address: 81, set data: 01, and press the PAUSE
button.

7)

Select page: 9, address: C4, set data: 02, and press the PAUSE
button.

8)

Disconnect the power supply of the unit.
By carrying out the above procedure, the unit can be operated
without loading a cassette. Never do opening or closing of the
cassette compartment under this condition.
Be sure to carry out “Procedure checking operations” after
checking the operations.
Set the following data to page: D, address: 10, if the forced
power supply ON mode is to be used together.

Forced VTR power supply ON mode ............................. 02
Forced CAMERA power supply ON mode ................... 01

1)

Select page: 0, address: 01, and set data: 01.

2)

Select page: 9, address: 74, set data: 00, and press the PAUSE
button.

3)

Select page: 9, address: 81, set data: 00, and press the PAUSE
button.

4)

Select page: 9, address: C4, set data: 00, and press the PAUSE
button.

5)

Select page: 0, address: 01, and set data: 00.

6)

Disconnect the power supply of the unit.

1)

Clean the tape running side (tape guide, capstan shaft, pinch
roller, etc.).

2)

Connect an oscilloscope to CPC of VC-263 board.
Channel 1: VC-263 board, CPC Pin qk (Note)
External trigger: VC-263 board CPC Pin qf

Connect a 75

Ω

 resistor between Pins qk of CPC and ws (GND).

3)

Playback the alignment tape for tracking. (XH8-1)

4)

Connect the adjustment remote commander and turn the HOLD
switch to the ON position.

5)

Select page: 0, address: 01, and set data: 01.

6)

Select page: 9, address: BC, set data: 0D, and press the PAUSE
button.

7)

Select page: 9, address: 81, set data: 62, and press the PAUSE
button.

8)

Select page: 0, address: 01, and set data: 00.

9)

Select page: 3, address: 0A, set data: 40, and press the PAUSE
button.

10) Check that the data of page: 3, address: 0B changes from “40”

to “00”.

11) Rotate the HOLDOFF knob of the oscilloscope so that the

flattest waveform is displayed.

12) Check that the oscilloscope RF waveform is normal at the

entrance and exit.
If not normal, adjust according to the separate volume
“MICRO MV MECHANICAL ADJUSTMENT MANUAL 1
V Mechanism ”.

Fig. 5-2-1.

1)

Connect the adjustment remote commander and set the HOLD
switch to the ON position.

2)

Select page: 0, address: 01, and set data: 01.

3)

Select page: 9, address: BC, set data: 00, and press the PAUSE
button.

4)

Select page: 9, address: 81, set data: 22, and press the PAUSE
button.

5)

Select page: 0, address: 01, and set data: 00.

1

3

5

7

9

11

13

15

17

19

21

HI XRESET

PWE

HI RXD

MDO

MD2

SWP SO

PLLON DIA

XRESET SW

QTM1

CPC ENV OUT

REG GND

2

4

6

8

10

12

14

16

18

20

22

EVER 3V

HI TXD

HI TEST A

DIS HISIO

RAW PBH

SCK3

SWP

QTM2

RF MON OUT

D 2.8V

REG GND

5msec

CH1

Trigger