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6-31

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

Taken an extreme care not to destroy the liquid crystal
display module by static electricity when replacing it.

Perform the following data setting before the viewfinder
system adjustments.
1) Select page: 3, address: C4, and set data: 67.
2) Select page: 3, address: C5, and set data: 01.
Reset the data after completing adjustment.
1) Select page: 3, address: C4, and set data: 00.
2) Select page: 3, address: C5, and set data: 00.

Most of the measuring points for adjusting the viewfinder system
are concentrated in CN1011 of the VC-305 board.
Connect the measuring instruments via I/F unit for LANC control
(J-6082-521-A) and CPC jig connector (J-6082-539-A).

The following table shows the pin No. and signal name of CN1011.

Pin No.

Signal Name

Pin No.

Signal Name

1

FRRV

9

RF MON

2

8 mm PB RF

10

REG GND

3

BPF MONI

11

N.C.

4

CAP FG

12

N.C.

5

RF SWP

13

XLANC POWER ON

6

REG GND

14

EVF VG

7

XLANC JACK IN

15

VCO

8

REG GND

16

LANC SIG

The following table lists the test point of I/F unit of for LANC
control.

Pin No.

Signal Name

Pin No.

Signal Name

BL

15

EVF VCO

14

EVF VG

BL 4.75

9

PB RF (MON)

3

BPF MONI

6, 8, 10

GND

TMS

7

REC RF (RF IN)

TDI

TDO

5

SWP

TCK

4

CAP FG

2

IR VIDEO

 Pin No. are those of CN1011.

CN1011

16

1

Conductor 
side

6-32

Set the VCO free-run frequency. If deviated, the EVF screen will
be blurred.

Mode

CAMERA

Subject

Not required

Measurement Point

EVF VCO (Pin qg of CN1011)

Measuring Instrument

Frequency counter

Adjustment Page

C

Adjustment Address

36, 37

Specified Value

f = 15734 

± 30 Hz

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

Order Page Address Data

Procedure

1

0

01

01

2

C

36

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

3

C

36

Press PAUSE button.

4

C

36

Read the data and this data is
named D

36

.

5

Convert D

36

 to decimal

notation, and obtain D

36

’.

(Note 2)

6

Calculate D

37

’ using

following equations.
(decimal calculation)
D

37

’ = D

36

’ + 19

7

Convert D

37

’ to a hexadeci-

mal number, and obtain D

37

.

(Note 2, 3)

8

C

37

D

37

Press PAUSE button.

9

0

01

00

Refer to table 6-4-1. “Hexadecimal-decimal conversion
table”

If D

37

’ > 255, then D

37

 = FF

6-33

Mode

CAMERA

Subject

Not required

Measurement Point

EVF VG (Pin qf of CN1011)

Measuring Instrument

Oscilloscope

Adjustment Page

C

Adjustment Address

39

Specified Value

A = 7.50 

± 0.10 Vp-p

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

Order Page Address Data

Procedure

1

0

01

01

2

C

39

Change the data and set the
voltage (A) to the specified
value.

3

C

39

Press PAUSE button.

4

0

01

00

Set the D Range of the RGB decoder for driving the LCD to the
specified value.
If deviated, the EVF screen image will be blackish or saturated
(whitish).

Do either of the automatic adjustment or manual adjust-
ment.

Mode

CAMERA

Subject

Not required

Adjustment Page

C

Adjustment Address

39

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

Switch setting:
1) PANEL OPEN/CLOSE ............................................... CLOSE

(LCD panel turns off)

Order Page Address Data

Procedure

1

0

01

01

2

3

01

50

Press PAUSE button. (Note 2)

3

3

02

Check the data changes to
“00”.

4

0

01

00

The adjustment data will be automatically input to page:
C, address: 39.

A: Between the reversed waveform pedestal

and non-reversed waveform pedestal

A

2H 

Pedestal

Pedestal

6-34

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

Do either of the automatic adjustment or manual adjust-
ment.

Mode

CAMERA

Subject

Not required

Adjustment Page

C

Adjustment Address

3E

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

Switch setting:
1) PANEL OPEN/CLOSE ............................................... CLOSE

(LCD panel turns off)

Order Page Address Data

Procedure

1

0

01

01

2

3

01

51

Press PAUSE button. (Note 2)

3

3

02

Check the data changes to
“00”.

4

0

01

00

 The adjustment data will be automatically input to page:

C, address: 3E.

Mode

CAMERA

Subject

Not required

Measurement Point

EVF VG (Pin qf of CN1011)

Measuring Instrument

Oscilloscope

Adjustment Page

C

Adjustment Address

3E

Specified Value

A = 2.55 

± 0.1 Vp-p

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

Order Page Address Data

Procedure

1

0

01

01

2

C

3E

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

3

C

3E

Press PAUSE button.

4

0

01

00

A

2H 

100 IRE

Pedestal

A: Between the pedestal (0 IRE) and 100 IRE