PVM-1353MD/1453MD
2. H-BLK Ad)ustment
1. Input a 525 monoscope signal.
2. Set:
CONT······80%
BRT·········50%
3. Put the unit into service mode.
4. Observe the anode of D516 or TP300 with the oscilloscope
and adjust
I H-BLK j to obtain the waveform in Fig. 2.
., 1 ·11 _· '-"'·' ,s
Fig. 2
3. PICTURE PHASE Adjustment
1. Input a 525 monoscope signal.
2. Put the unit into under scan mode.
3. Set:
CONT······Min.
BRT·········Max.
4. Put the unit into service mode.
5. Use
jU!S H SIZE! to adjust the size of the monoscope white
frame to be about 1 cm to the inside of the limits of the
effective screen.
6. Tum RV501 (H-CENT) and adjust so that
B=B'.
7. Adjustj60 VIDEO PHASEjso that the signal region comes to
the center (A=A') of the deflection region. (Fig. 3)
Deflection region
Signal region
Effective screen
Fig. 3
8. Input a 625 monoscope signal.
A=A'
B=B'
9. Adjust I 50 VIDEO PHASE i in the same manner.
4. V•BLK Adjustment
1. Input a 525 monoscope signal.
2. Put the unit into under scan mode.
3. Set:
CONT······ Min.
BRT·········Max.
4. Put the unit into service mode.
5. Adjust! V BLK (60)
i so that before 0.5H of the white frame
on the top of the monoscope is barely unblocked .
6. End under scan mode and put the unit into Normal 16:9
mode.
7. Input a 625 monoscope signal.
8. Adjust IV BLK (50)
!in the same manner as in 5 above.
5. VERTICAL DEFLECTION SECTION
Adjustm.ent
Normal V. Size Standards
4:3
I 525
11.75 ± 0.2 frames
1. Input a 525 monoscope signal.
2. Set:
CONT···· .. 80%
BRT······ .. ·50%
3. Put the unit into service mode.
625
11.2 ± 0.2 frames
4. Roughly adjust 4 : 3 NOR
/~V---SI_Z_E-60~/ so that the size
becomes to 12 frames.
Adjust the vertical linearity with !V-LIN
~
Adjust the vertical centering with j""v=-=c~E-N-T-60-! . (Refer to
Note 1.)
Adjust 4: 3 NOR/V-SIZE
60j so that the size becomes to the
standard value.
5. Input a 625 monoscope signal.
6. Roughly adjust 4 : 3 NOR
~I V---SI_Z_E-50~! so that the size
becomes to 11 frames.
Adjust the vertical centering with / V-CENT 50
I . (Refer to
Note
1.)
Adjust 4 : 3 NOR! V-SIZE 50 j so that the size becomes to the
standard value.
Note 1:
Reconfirmation is necessaiy for V. CENT adjustment after V.
LIN adjusted.
-40-