Sony STR-D760Z Service Manual Download

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SECTION 4

ELECTRICAL ADJUSTMENT

TUNER SECTION

No adjustment is needed due to a tuner unit (TU401).

OSD SECTION

OSD Width Adjustment

Note:

Perform “ALL CLEAR” before this adjustment.
(Refer to Servicing note on page 4)

Connection:

SET

Monitor

Procedure:
1. Press the POWER button and turn ON the power.
2. The OSD function frame will be displayed on the monitor. This

screen will disappear in a few seconds automatically when the
input of codes using the remote commander stops.
If it disappears during adjustments, move the cursor of the re-
mote commander supplied as an accessory. The screen will ap-
pear again.

3. While watching the monitor screen, adjust CT201 of the

S.VIDEO board so that the following adjustment standard is
satisfied.

OSD Color burst Adjustment

Connection:

MONITOR OUT

frequency counter

S.VIDEO board

JW232

Procedure:
1. Without anything connected to the external input terminal, press

the POWER button and turn ON the power.

2. Adjust CT202 of the S.VIDEO board so that the reading on the

frequency counter becomes 3.579545 MHz

10 MHz. (US,

CND, E, PX models) or 4.433619 MHz ± 10 MHz. (SP, MY,
AUS models)
• Abbreviation
CND : Canadian model
SP

: Singapore model

: Malaysia model

AUS : Australian model

OSD Picture Adjustment

Connection:

Connection 1:

MONITOR OUT

set

Vectorscope

Monitor

Connection 2:

Vectorscope

set

VTR etc.

Monitor

VIDEO 1 IN

MONITOR OUT

Procedure 1:
1. Without anything connected to the external input terminal (con-

nection 1), press the POWER button and turn ON the power.

2. Check that the OSD function frame screen is displayed on the

monitor. If no OSD function frame screen is displayed, move
the cursor button of the remote commander provided to display
the screen.

3. Observe the vectorscope, and adjust RV201 of the S. VIDEO

board so that the light dots converge in the BLUE area.

4. Connect a dynamic picture video device to the external input

terminal (VIDEO 1 IN jack) of this unit (Connection 2).

5. Press the VIDEO FUNCTION button and set the input source

to VIDEO 1.

6. Move the cursor of the remote commander provided, and dis-

play the OSD function frame.

7. Observe the vectorscope. Check that the light dots in the BLUE

range and the light dots adjusted at 3 are coinciding.

8. If they do not coincide, disconnect the external video device,

and adjust RV201 of the S. VIDEO board again.

9. If the light dots when an external video device is connected and

not connected coincide, it indicates the end of the adjustment.

Procedure 2: (When no vectorscope is used)

Connection:

VIDEO 1 IN

VTR etc.

set

Monitor

MONITOR OUT

1. Connect a dynamic picture video device to the VIDEO 1 IN

jack of the unit.

2. Press the VIDEO FUNCTION button, and set the input source

to VIDEO 1.

3. Move the cursor of the remote commander provided, and dis-

play the OSD function frame.

4. Take note of the blue and green screens at the bottom left of the

OSD function frame.

5. Disconnect the video device connected at 1.
6. Adjust RV201 of the S. VIDEO board so that the blue and green

parts at the bottom left of the OSD function frame to the same
color as the images checked at 4.

FUNCTION

SOUND

SETUP

INPUT

SUB

USER

™

(

)

Blue area

OSD function frame

Green area

Note)

Perform this adjustment when disconnecting the external video de-
vice. If the external video device is connected, there is no meaning
in performing this adjustment due to the use of the color burst of the
external device instead of the internal sync signal.

monitor screen

Adjustment Location

[S. VIDEO BOARD] (Component side)

JW232

OSD width

OSD picture

IC205

CT201

RV201

IC215

CT202

CNP202

OSD color burst

monitor screen

Adjustment standard:
Adjust so that the width B becomes one and a half times of width A.

1.5A = B

NOTE:
Extra margin is provided in this adjustment in consideration of the
deviation of the screen according to the type of monitor used.
Consequently, the user is able to adjust the position of the screen
freely. (For details, refer to “Adjustment of OSD Screen Position”
in 1. Servicing note. Refer to page 4.)

FUNCTION

SOUND

SETUP

INPUT

SUB

USER

™

(

)

OSD function frame