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5-26

Set the common electrode drive signal level of LCD to the specified
value.

Mode

VTR stop

Signal

No signal

Measurement Point

Pin 4 of CN5502 (PANEL COM)

Measuring Instrument

Oscilloscope

Adjustment Page

7

Adjustment Address

48

Specified Value

A = 6.20 ± 0.05V

1

0

01

01

Set the data.

2

7

48

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

3

7

48

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

7

Adjustment Address

45

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.

RGB AMP Adjustment
Contrast Adjustment
COM AMP Adjustment

1

0

01

01

Set the data.

2

7

45

Change the data so that the
brightness of the section A and
that of the section B is equal.

3

7

45

Subtract 8 from the data.

4

7

45

Press PAUSE button.

5

0

01

00

Set the data.

Fig. 5-1-18.

A

2H

Fig. 5-1-19.

A

A

A

A

B

B

B

B

5-27

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

7

Adjustment Address

49, 4A

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. IC5501

1

0

01

01

Set the data.

2

7

49

60

Set the data, and press PAUSE
button.

3

7

4A

65

Set the data, and press PAUSE
button.

4

7

49

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

5

7

49

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

6

7

49

Press PAUSE button.

7

7

4A

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

8

7

4A

Press PAUSE button.

9

7

4A

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

10

0

01

00

Set the data.

5-28

Mechanism Section adjustments, checks, and replacement of
mechanism parts, refer to the separate volume “8mm Video
Mechanism Adjustment Manual IX   M2000 Mechanism ”.

Connect the adjustment remote commander to CN713 of VC-272
board via CPC jig for SB (J-6082-539-A). To operate the adjustment
remote commander, connect the AC power adapter (8.4Vdc) to the
DC IN jack of CPC jig for SB, or connect the L series Info-LITHIUM
battery to the battery terminal of CPC jig for SB.

1)

Refer to “Section 2. DISASSEMBLY” and supply the power
with the cabinet assembly removed. (So that the mechanical
deck can be operated.)

2)

Connect the adjustment remote commander.

3)

Turn on the HOLD switch of the adjustment remote
commander.

4)

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

5)

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

6)

Select page: F, address: 20, set data: 01, and press the PAUSE
button of the adjustment remote commander.

7)

Select page: D, address: 10, set data: 10, and press the PAUSE
button of the adjustment remote commander.

8)

Disconnect the power supply of the unit.
By carrying out the above procedure, the unit can be operated
without loading a cassette.
Be sure to carry out “Processing after Operations” after
checking the operations.
Set the data of page: D, address: 10 to the following if the
sensor ineffective mode, forced VTR power supply On mode
or forced camera power supply ON mode are to be used
together.

Forced VTR power ON mode ........................................ 12
Forced camera power ON mode .................................... 11

1)

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

2)

Select page: F, address: 20, set data: 00, and press the PAUSE
button of the adjustment remote commander.

3)

Select page: D, address: 10, set data: 00, and press the PAUSE
button of the adjustment remote commander.

4)

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

5)

Disconnect the power supply of the unit.

1)

Clean the tape path face (tape guide, capstan shaft, pinch roller).

2)

Connect the adjustment remote commander.

3)

Turn on the HOLD switch of the adjustment remote
commander.

4)

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

5)

Select page: F, address: 20, set data: 08, and press the PAUSE
button of the adjustment remote commander.
(Be sure to perform “Processing after operation” after
completing adjustments.)

6)

Connect the oscilloscope to CPC jig for SB.

Channel 1: PB RF (Pin 9 of CN713)
External trigger: SWP (Pin 5 of CN713)

7)

Playback the alignment tape for tracking. (WR5-1CP)

8)

Check that the oscilloscope RF waveform is normal at the
entrance and exit.
If not normal, adjust according to the separate volume “8mm
Video Mechanical Adjustment Manual IX  M2000 Mechanism ”.

9)

Perform “Processing after operations”, after completing
adjustment.

Pin No. are those of CN713.

Table 5-2-1.

1)

Connect the adjustment remote commander, and turn on the
HOLD switch.

2)

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

3)

Select page: F, address: 20, set data: 00, and press the PAUSE
button of the adjustment remote commander.

4)

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

5)

Remove the power supply from the unit.

Fig. 5-2-1.

CH1

Entrance 
side

Exit side

Check this section

(Normal waveform)

CH2
(Trigger)

V

14

9

3

5

4

BL

EVF VG

PB RF (MON)

BPF MONI

TMS

TDI

SWP

CAP FG

15

6,8,10

7

2

EVF VCO

BL 4.75

GND

REC RF (RF IN)

TDO

TCK

IR VIDEO

5-29

Use the following measuring instruments for video section
adjustments.

1)

TV monitor

2)

Oscilloscope (dual-phenomenon, band width above 30 MHz
with delay mode) (Unless specified otherwise, use a 10 : 1
probe.)

3)

Frequency counter

4)

Pattern generator with video output terminal

5)

Digital voltmeter

6)

Audio generator

7)

Audio level meter

8)

Audio distortion meter

9)

Audio attenuator

10) Regulated power supply
11) PAL alignment tapes

• For tracking adjustment (WR5-1CP)

Parts code : 8-967-995-07

• For video frequency characteristics adjustment (WR5-7CE)

Parts code : 8-967-995-18

• For checking Standard 8 mode operations

For LP (WR5-4CL)

Parts code : 8-967-995-56

For SP (WR5-5CSP)

Parts code : 8-967-995-47

The following alignment tapes can also be used.

1)

WR5-3CL (8-967-995-36)

2)

WR5-4CSP (8-967-995-46)

• For checking Hi8 mode operations

For LP (WR5-8CLE)

Parts code : 8-967-995-57

For SP (WR5-8CSE)

Parts code : 8-967-995-48

• For BPF adjustment (WR5-11CS)

Parts code : 8-967-995-76

12) Adjustment remote commander (J-6082-053-B)
13) CPC jig for SB (J-6082-539-A)