Registration Adjustment - Sony VPH-G90U Service Manual

3-5. REGISTRATION ADJUSTMENT

3-5-1. INPUT MEMORY No. 0 Adjustment
1. Input the monoscope signal to VIDEO IN.
2. Press the BLKG key and move the top blanking outside
the effective screen with the ↑ key.
3. Press the POSITION (+) key and move the bottom
blanking outside the effective screen with the ↓ key.
4. Press the POSITION (+) key and move the left
blanking outside the effective screen with the ← key.
5. Press the POSITION (+) key and move the right
blanking outside the effective screen with the → key.
6. Press the MEMORY key.
7. Press the REGISTRATION CENT key and the ADJ G
key to set the GREEN adjustment mode.
8. Adjust the vertical and horizontal lines to the screen
center lines using the ↑, ↓, ← and → keys.
9. Press the REGISTRATION SIZE key to adjust the
outer circumference of the cross-hair to the position 60
± 20 mm inside the screen using the ↑, ↓, ← and →
keys.
10. Set the modes of LIN, SKEW, BOW, KEY, KEY
(TOP/BOTTOM/LEFT/RIGHT), PIN, PIN (TOP/
BOTTOM/LEFT/RIGHT) and ZONE, then adjust them
to the values within the specification using the arrow
keys (up to 21 blocks).
. . . . . For adjusting four corners, use KEY,
Note:
KEY (TOP/BOTTOM/LEFT/RIGHT),
PIN, PIN (TOP/BOTTOM/LEFT/
RIGHT). The adjusted value of
"POSITION No. 1" _ _ _ _ _ "POSITION No.
9" in ZONE adjustment should be "128
±
5."
. . . . . When the size is deviated during
adjustment, adjust it as required.
3-12
11. Press the MEMORY key.
12. Press the REGISTRATION CENT key and the ADJ R
key to set the RED adjustment mode, then adjust the
vertical and horizontal lines of RED to the GREEN
center lines using the ↑, ↓, ← and → keys.
13. Press the REGISTRATION SIZE key to adjust the
outer circumference of the cross-hair to the position 60
± 20 mm inside the screen using the ↑, ↓, ← and →
keys.
14. Set the modes of LIN, SKEW, BOW, KEY, KEY
(TOP/BOTTOM/LEFT/RIGHT), PIN, PIN (TOP/
BOTTOM/LEFT/RIGHT) and ZONE, then adjust them
to the values within the specification using the arrow
keys (up to 21 blocks).
. . . . . For adjusting four corners, use KEY,
Note:
KEY (TOP/BOTTOM/LEFT/RIGHT),
PIN, PIN (TOP/BOTTOM/LEFT/
RIGHT). The adjusted value of
"POSITION No. 6 to "POSITION No. 9"
in ZONE adjustment should be "128
. . . . . When the size is deviated during
adjustment, adjust it as required.
15. Press the MEMORY key.
16. Adjust BLUE in the same way.
17. Copy the adjusted data to INPUT MEMORY No. 1 and
INPUT MEMORY No. 2.
±
5."
VPH-G90E/G90U/G90M