Sony PVM-20M2U Service Manual page 29

8. Input a 625 monoscope signal.
9. In the same way as 5. shown above, adjust
IV-BLANKING<SO>I.
10. Adjust
I16:9BLANKINGSTART<SO>I
and
I16:9BLANKINGBND<SO>I,
in the same was as 6. and 7 ., so that the number of frames in the
vertical direction in the luminous section of the screen will be
11.2 and the BLK quantity at the top and bottom will be the
same.
5. Vertical deflection adjustment
l. Input a 525 monoscope signal.
2. CONT ... 80%
BRT ... 50%
3. Set the unit in the service mode.
4. Roughly adjust
INOR60V.SIZBI
so that the size will be 12 frames.
Adjust V.LIN with
IV.LINI.
Adjust CENT with
lv.CENTI.
V.CENT must be reviewed after adjustment ofV.LIN.
Adjust
I NOR 60 V.SIZBI
so that it will equal the standard value.
5. Set the unit in the 16:9 mode by the user controller SW.
6. Make the same adjustment with
116:9 NOR V.SIZB <60>1.
7. Set the unit in the NORMAL SCAN mode.
8. Input a 625 signal.
9. Adjust
INORSOV.SIZBI
so that the SIZE will equal the standard
value.
10. Set the unit in the 16:9 mode.
11. Adjust
116:9 NOR V.SIZB <SO>I
so that it will equal the standard
value.
Table 5-3 NORMAL V. SIZE standard
525 625
4:3 11.75±0.2 frames 11.2±0.2 frames
14" 154mm
-
16:9
20"
217mm
-
6. Horizontal deflection adjustment (Normal scan adjust-
ment)
l. Input a 525 monoscope signal.
2. CONT ... 80%
BRT ....
SO%
3. Set the unit in the service mode.
4. Rough adjustment of H. SIZE
Roughly adjust
I NOR H.SIZBI
so that H.SIZE will be 15.75 frames.
5.
Adjust the horizontal deflection by means of
!NOR PIN AMPI,
!NOR PIN PHASE I, !NOR u.PIN AMPI, ISEXYI, lv Bowl, lv ANGLI,
INORHSIZBI,ILPINAMPI,
and
ILVBowl.
(While correcting a distorted parallelogram and curvature with
V.ANGL and BOW, make adjustment so that the horizontal and
vertical lines of the screen will be straight.)
6. Set the unit in the 16:9 mode.
7. Make the same adjustment as 5. with
II6:0NORPINAMPI
and
116:9 NOR PIN PHASE!
-29-
Table 5-4 NORMAL H. SIZE standard
525
625
4:3 11.75±0.2 frames 15.0±0.2 frames
16:9
11.75±0.2 frames 15.0±0.2 frames
PIN.AMP
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~[ill]¢ [lJ]
Flg.5-5