STR-DA90ESG - Sony Audio Service Manual (repair manual). Page 7

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SECTION  3
ELECTRICAL  ADJUSTMENTS
ON  SCREEN  SECTION
OSD  ADJUSTMENT
Setting:
Monitor TV
Vectroscope
VIDEO output terminal
SET
VIDEO 1 S terminal
S. VIDEO SG
Procedure:
1. Connect the frequency counter to R813.
2. Turn the POWER switch ON, press VIDEO 1 and set the func-
tion to VIDEO 1. (The input signal set to OFF.)
3. Turn the POWER switch OFF, keep the  BAND  ,  
  buttons
depressed at the same time and then turn the POWER switch
ON.
4. Check that the screen shown only the color bars, and then ad-
just CT802 so that the reading becomes 3.5796 MHz ± 10 kHz.
5. Adjust CT801 so that the right edge of the color bars on the
screen comes within the frame.
BLA
CK
RED
BLUE
D
ARK GRA
Y
GRA
Y
ORANGE
GREEN
WHITE
Center
a=b
(Picture of monitor screen)
a
b
6. The input signal set to ON.
BLA
CK
(THR
OUGH)
BLUE
D
ARK GRA
Y
GRA
Y
(THR
OUGH)
GREEN
WHITE
R813
CT802
IC814
RV801 CT801
CT803
IC805
Frequency counter
7. Turn the POWER switch OFF, keep the  BAND  ,  
  buttons
depressed at the same time and then turn the POWER switch
ON.
8. Adjust the picture frame as shown in (picture of monitor screen)
when using a color bar chart for adjustment with RV801.
INITIALIZATION  OF  THE  MICROCOMPUTER
KEEP the  DISPLAY  ,  OPEN/CLOSE  buttons depressed simul-
taneously and then turn the POWER switch ON.
Adjustment Location: VIDEO board (Component side)
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