DOWNLOAD Sony DCR-TRV10 / DCR-TRV10E / DCR-TRV8 / DCR-TRV8E (serv.man2) Service Manual ↓ Size: 35.38 MB | Pages: 127 in PDF or view online for FREE

5-31

The back light (fluorescent tube) is driven by a high voltage AC
power supply. Therefore, do not touch the back light holder to
avoid electrical shock.

When replacing the LCD unit, be careful to prevent damages
caused by static electricity.

Set the LCD BRIGHT to the center.
Set the LCD COLOR (Menu display) to the center.

Most of the measuring points for adjusting the LCD system are
concentrated in CN2904 of the VC-217 board.
Connect the Measuring Instruments via the CPC-8 jig (J-6082-388-
A).
The following table shows the Pin No. and signal name of CN2904.

1

3

5

7

9

11

13

15

17

19

LANC SIG

EVF BL –

EVF VCO

PD VG

H START

PANEL COM

TCK

TDO

SWP

GND

2

4

6

8

10

12

14

16

18

20

EVF BL +

EVF VG

GND

PD VCO

XHD/PSIG

TMS

TDI

GND

RF IN/LANC JACK IN

RF MON

Table 5-1-8.

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

Mode

VTR stop

Signal

arbitrary

Measurement Point

Pin 9 of CN2904 (H START) on
VC-217 board

Measuring Instrument

Frequency counter

Adjustment Page

D

Adjustment Address

84

Specified Value

f = 15734 ± 30Hz (NTSC)
f = 15625 ± 30Hz (PAL)

Adjusting method:
1)

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

2)

Select page: 3, address: 0C, set data: 20, and press the PAUSE
button of the adjustment remote commander.

3)

Select page: 3, address: 22, set data: 03, and press the PAUSE
button of the adjustment remote commander.

4)

Select page: D, address: 84, change the data and set the
frequency (f) to the specified value.

5)

Press the PAUSE button of the adjustment remote commander.

6)

Select page: 3, address: 22, set data: 00, and press the PAUSE
button of the adjustment remote commander.

7)

Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.

8)

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

Fig. 5-1-17.

CN2904

1

2

19

20

Remove the CPC cover

5-32

Set the D range of the RGB decoder used to drive the LCD to the
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).

Mode

Camera

Subject

Arbitrary

Measurement Point

Pin 7 of CN2904 (PD VG) on
VC-217 board

Measuring Instrument

Oscilloscope

Adjustment Page

D

Adjustment Address

82

Specified Value

A = 3.45 ± 0.05V

Adjusting method:
1)

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

2)

Select page: 3, address: 0C, set data: 20, and press the PAUSE
button of the adjustment remote commander.

3)

Select page: 3, address: 22, set data: 02, and press the PAUSE
button of the adjustment remote commander.

4)

Select page: D, address: 82, change the data and set the voltage
(A) between the reversed waveform pedestal and non-reversed
waveform pedestal to the specified value.

5)

Press the PAUSE button of the adjustment remote commander.

6)

Select page: 3, address: 22, set data: 00, and press the PAUSE
button of the adjustment remote commander.

7)

Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.

8)

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

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

Camera

Subject

Arbitrary

Measurement Point

Pin 7 of CN2904 (PD VG) on
VC-217 board

Measuring Instrument

Oscilloscope

Adjustment Page

D

Adjustment Address

8A

Specified Value

A = 1.70 ± 0.05V

Adjusting method:
1)

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

2)

Select page: 3, address: 0C, set data: 20, and press the PAUSE
button of the adjustment remote commander.

3)

Select page: 3, address: 22, set data: 02, and press the PAUSE
button of the adjustment remote commander.

4)

Select page: 2, address: 0E, and set data: 40.

5)

Select page: D, address: 8A, change the data and set the voltage
(A) between the pedestal and GAMMA1 limiter level to the
specified value. (The data of address: 8A should be “1E” to
“A0”.)

6)

Press the PAUSE button of the adjustment remote commander.

7)

Select page: 2, address: 0E, and set data: 00.

8)

Select page: 3, address: 22, set data: 00, and press the PAUSE
button of the adjustment remote commander.

9)

Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.

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

Fig. 5-1-18.

Fig. 5-1-19.

Pedestal

A

2H

Pedestal 

Pedestal

A

2H

GAMMA 1 limiter lavel

5-33

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

Camera

Subject

Arbitrary

Measurement Point

Pin 7 of CN2904 (PD VG) on
VC-217 board

Measuring Instrument

Oscilloscope

Adjustment Page

D

Adjustment Address

8C

Specified Value

A = 2.95 ± 0.05V

Adjusting method:
1)

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

2)

Select page: 3, address: 0C, set data: 20, and press the PAUSE
button of the adjustment remote commander.

3)

Select page: 3, address: 22, set data: 02, and press the PAUSE
button of the adjustment remote commander.

4)

Select page: D, address: 8C, change the data and set the voltage
(A) between the 0 IRE (pedestal) and 100 IRE to the specified
value.

5)

Press the PAUSE button of the adjustment remote commander.

6)

Select page: 3, address: 22, set data: 00, and press the PAUSE
button of the adjustment remote commander.

7)

Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.

8)

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

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

Mode

Camera

Subject

Arbitrary

Measurement Point

Pin !¡ of CN2904 (PANEL COM) on
VC-217 board

Measuring Instrument

Oscilloscope

Adjustment Page

D

Adjustment Address

83

Specified Value

A = 6.50 ± 0.05V

Perform “Bright Adjustment” and “Contrast Adjustment” before this
adjustment.

Adjusting method:
1)

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

2)

Select page: 3, address: 0C, set data: 20, and press the PAUSE
button of the adjustment remote commander.

3)

Select page: 3, address: 22, set data: 02, and press the PAUSE
button of the adjustment remote commander.

4)

Select page: D, address: 83, change the data and set the PANEL
COM signal level (A) to the specified value.

5)

Press the PAUSE button of the adjustment remote commander.

6)

Select page: 3, address: 22, set data: 00, and press the PAUSE
button of the adjustment remote commander.

7)

Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.

8)

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

Fig. 5-1-20.

Fig. 5-1-21.

0 IRE

100 IRE

A

2H

A

2H

5-34

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

Camera

Subject

Arbitrary

Measurement Point

Check on LCD display

Measuring Instrument

Adjustment Page

D

Adjustment Address

85

Specified Value

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

Perform “Bright Adjustment” and “Contrast Adjustment” before
this adjustment.

Adjusting method:
1)

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

2)

Select page: 3, address: 0C, set data: 20, and press the PAUSE
button of the adjustment remote commander.

3)

Select page: 3, address: 22, set data: 0F, and press the PAUSE
button of the adjustment remote commander.

4)

Select page: 2, address: 0E, and set data: 20.

5)

Select page: D, address: 85, change the data so that the
brightness of the section A and that of the section B is equal.

6)

Press the PAUSE button of the adjustment remote commander.

7)

Select page: 2, address: 0E, and set data: 00.

8)

Select page: 3, address: 22, set data: 00, and press the PAUSE
button of the adjustment remote commander.

9)

Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.

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

Correct the white balance.
If deviated, the LCD screen color cannot be reproduced.

Mode

Camera

Subject

Arbitrary

Measurement Point

Check on LCD display

Measuring Instrument

Adjustment Page

D

Adjustment Address

80, 81

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. IC5502

Adjusting method:
1)

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

2)

Select page: 3, address: 0C, set data: 20, and press the PAUSE
button of the adjustment remote commander.

3)

Select page: 3, address: 22, set data: 0B, and press the PAUSE
button of the adjustment remote commander.

4)

Select page: D, address: 80 and 81, set the data to the initial
value.

Press the PAUSE button of the adjustment remote commander
each time to set the data.

5)

Check that the LCD screen is not colored. If colored, change
the data of page: D, address: 80 and 81 so that the LCD screen
is not colored.

To write in the non-volatile memory (EEPROM), press the
PAUSE button of the adjustment remote commander each time
to set the data.

6)

Select page: 3, address: 22, set data: 00, and press the PAUSE
button of the adjustment remote commander.

7)

Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.

8)

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

Fig. 5-1-22.

A

A

A

A

B

B

B

B

DCR-TRV10

DCR-TRV8

DCR-TRV10E

DCR-TRV8E

80

97

91

A6

C1

81

70

88

73

8E