Sony STR-DH830, Service Manual

Page: 11 / 94

STR-DH730/DH830
11
SECTION 4
ELECTRICAL ADJUSTMENT
VIDEO CALIBRATION ADJUSTMENT
Adjustment to decide the standard of the video input signal.
Note: After replacing DIGITAL VIDEO board, or after “RESET” of the
special menu mode is executed, perform this adjustment.
1. Adjustment jig
The color pattern generator that can output 100% in NTSC/PAL/
HD color bar signal to the component and the composite at the
same time is necessary for the adjustment.
When there is no color pattern generator, it is possible to substitute
it by the Blu-ray Disc player that can output the component
terminal and the video terminal at the same time (Substitution
model name example: BDP-S350).
However, please do the following signal output con
fi rmation with
the oscilloscope beforehand when substituting it with the Blu-ray
Disc player.
2. Video calibration adjustment
2-1. Connection
color pattern
generator
or
Blu-ray
Disc player
set
HDMI TV
OUT
STANDBY-AVIDED board
COMPONENT
VIDEO
SAT/CATV (IN2)
COMPOSITE VIDEO
SAT/CATV VIDEO IN jack
2-2. Procedure for color pattern generator
1. It connects of step 2-1, and then turn on the main power.
2. “SAT/CATV” is selected by using [INPUT SELECTOR] dial.
3. Input NTSC color bars signal from the color pattern generator.
4. Press the [
?/1
] button to turn off the main power.
5. While pressing the [MOVIE] and [SPEAKERS] buttons, press
the [
?/1
] button to turn on the main power. When correctly
entering the test mode “FIN_ _ _” and “N-MWX_ _ _”
are displayed in 1 second interval (alternating display).
6. The NTSC signal adjustment is begun when press the cross
(center of cursor) button of remote commander, and the display
changes from “N-MWX_ _ _”
to “N-MWOCDV” little by little.
Finally, “FINN _ _”and “N-MWOCDV” are displayed in 1
second interval (alternating display).
7. Input PAL color bars signal from the color pattern generator.
8. Perform step 6 to 7 for the PAL signal adjustment.
9. Input HD color bars signal (720p or 1080i) from the color
pattern generator.
10. Perform step 6 to 7 for the HD signal adjustment.
11. Then turn off the main power.
2-3. Procedure for Blu-ray Disc player
1. It connects of step 2-1, and then turn on the main power of set
and Blu-ray Disc player.
2. “SAT/CATV” is selected by using [INPUT SELECTOR] dial.
3. Press the OPEN/CLOSE button of the Blu-ray Disc player, and
DVD test disc “HLX-504 (Part No. J-6090-088-A)” or “HLX-
513 (Part No. J-2501-305-A)” is insert. The disc playback
automatically becomes start “Main Menu” is display.
4. “1.Color Bar 100%” of “1.Video Signal” is reproduced, and
100% in the color bar is displayed in the TV monitor, playing
the Blu-ray Disc player is pause playback.
5. Press the [
?/1
] button to turn off the main power of the set.
6. While pressing the [MOVIE] and [SPEAKERS] buttons, press
the [
?/1
] button to turn on the main power of the set. When
correctly entering the test mode “FIN_ _ _” and “N-MWX_
_ _”are displayed in 1 second interval (alternating display).
7. The NTSC signal adjustment is begun when press the cross
(center of cursor) button of remote commander, and the display
changes from “N-MWX_ _ _”
to “N-MWOCDV” little by little.
Finally, “FINN _ _”and “N-MWOCDV” are displayed in 1
second interval (alternating display).
8. Press the OPEN/CLOSE button of the Blu-ray Disc player, and
change to DVD test disc “HLX-506 (Part No. J-6090-077-A)”
or “HLX-507 (Part No. J-6090-078-A)”. The disc playback
automatically becomes start “Main Menu” is display.
9. “1.Color Bar 100%” of “1.Video Signal” is reproduced, and
100% in the color bar is displayed in the TV monitor, playing
the Blu-ray Disc player is pause playback.
10. The PAL signal adjustment is begun when press the cross
(center of cursor) button of remote commander. Finally, “FINN
P _” and “P-MWOCDV” are displayed in 1 second interval
(alternating display).
11. Press the OPEN/CLOSE button of the Blu-ray Disc player, and
change to DVD test disc “HLX-104 (Part No. J-6090-199-A)”.
The disc playback automatically becomes start “Main Menu”
is display.
12. “59.94Hz, 1080i” → “1.Video Signal” → “1.Color Bar 100%”
is selected, and 100% in the color bar is displayed in the TV
monitor, playing the Blu-ray Disc player is pause playback.
13. The video output of the Blu-ray Disc player is switched 1080i
(The output from the component terminal of the Blu-ray Disc
player becomes 1080i output).
14. The HD signal adjustment is begun when press the cross
(center of cursor) button of remote commander. Finally, the
display returns to the display of “FINN P H”.
15. Then turn off the main power.