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6-35

DCR-TRV270E/TRV280/TRV285E

Use the following measuring instruments for video section adjust-
ments.

Note: NTSC model: DCR-TRV280

PAL model: DCR-TRV270E/TRV285E

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) Digital voltmeter
5) Audio level meter
6) Regulated power supply
7) Digital8 alignment tapes

• SW/OL standard (WR5-2D)

Parts code: 8-967-993-22

• Audio operation check for NTSC (WR5-3ND)

Parts code: 8-967-993-32

• System operation check for NTSC (WR5-5ND)

Parts code: 8-967-993-42

• Audio operation check for PAL (WR5-3CD)

Parts code: 8-967-993-37

• System operation check for PAL (WR5-5CD)

Parts code: 8-967-993-47

8) Adjustment remote commander (J-6082-053-B)
9) CPC jig connector (J-6082-539-A)
10) I/F unit for LANC control (J-6082-521-A)

6-36

DCR-TRV270E/TRV280/TRV285E

This set is adjusted in two modes, VTR mode and CAMERA mode.

Some of the adjusting points of the video section are concentrated
at VC-344 board CN1011. 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

EEP SCK

9

RF MON

2

FRRV

10

REG GND

3

N. C.

11

LANC OUT

4

N. C.

12

LANC IN

5

RF SWP

13

XLANC POWER ON

6

REG GND

14

EEP SO

7

N. C.

15

EEP SI

8

REG GND

16

XCS EEP

Note: Use either the AC power adaptor or the InfoLITHIUM battery as the power supply of I/F unit for LANC control.

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

Note: Pin No. are those of CN1011.

3-1-4. Connecting the Equipment
Connect the measuring instruments as shown in Fig. 6-3-1 and
perform the adjustments.

CN1011

A/V OUT jack

16

1

Audio L (white)

Audio R (red)

Video (yellow)

TV monitor

AC IN

AC adaptor

AC adaptor

CPC lid

I/F unit for LANC control
(J-6082-521-A)

Conductor side

L serices Info
LITHIUM battery (7.2Vdc)

Adjustment
remote commander (RM-95)

CPC jig connector
(J-6082-539-A)

LANC jack

AC IN

Screw (M2)

6-37

DCR-TRV270E/TRV280/TRV285E

3-1-5. Alignment Tape
The following table lists alignment tapes which are available.
Use the tape specified in the signal column for each adjustment. If
the type of tape to be used for checking operations is not speci-
fied, use whichever type.

Name

Usage

SW/OL standard (WR5-2D) Switching position adjustment

Audio operation check
(WR5-3ND (NTSC),

Audio system adjustment

WR5-3CD (PAL))

System operation check
(WR5-5ND (NTSC),

Operation check

WR5-5CD (PAL))

6-38

DCR-TRV270E/TRV280/TRV285E

Fig. 6-3-2 Shows the color bar signals recorded on the alignment
tape.
Note: Measure using the VIDEO terminal (Terminated at 75 

Ω).

1 V

0.714 V

0.286 V

White (75%)

White (100%)

Y

ello

w

Cy

an

Green

Magenta

Red

Blue

Burst signal

0.286 V

Q

I

Horizontal sync signal

(75%)

White

Y

ello

w

Cy

an

Green

Magenta

Red

Blue

Q

I

White

(100%)

Black

1 V

0.7 V

0.3 V

White (100%)

Y

ello

w

Cy

an

Green

Magenta

Red

Blue

Burst signal

Horizontal sync signal

0.3 V

(100%)

Y

ello

w

Cy

an

Green

Magenta

Red

Blue

White

Blac

k

Color bar signal waveform

Color bar pattern

Color bar signal waveform

Color bar pattern

AV MINIJACK
Video signal: 1 Vp-p, 75 

Ω (ohms),

unbalanced, sync negative
Audio signal: 327 mV (at output impedance
more than 47 k

Ω (kilohms)), Output

impedance with less than 2.2 k

Ω (kilohms)