Sony BVM-1916 Operation And Maintenance Manual page 121

Vertical Lineality Adjustment
1.
Input only the H line of cross-hatch signal.
2. Adjust V center with V.CENTER (RVIO) on the DA board.
3. Adjust the balance of V lineality with V.LB (RV9) on the DA board
as shown in Fig. 28-2.
4. Adjust the gain of V lineality_with Y.LG (RVS) on the DA board as
shown in Fig. 28-3,
5. Adjust the V.HEIGHT with V.H.N (RV3) on the DA board.
6. Mark tracking by repeating step 3. through 5.
RV9 ..... V LIN BALANCE
Counter-clockwise Clockwise
Fig. 28-2
RVS V LIN GAIN
Counter-clockwise Clockwise
Fig. 28-3
Side Pincushion Adjustment
l. Input only the V line of cross-hatch signal.
2. Minimize the Y.BOW distortion with Y.BOW (RY13) on the DA
board as shown in Fig. 28-7.
3. Minimize the Y.TILT distortion with Y.TILT (RY25) on the DA
board is shown in Fig. 28~7.
4. Minimize the side pincushion distortion with S.P.N (RYS) on the
DA board as shwon in Fig. 28-4.
5. Minimize the side pincushion tilt distortion with S.P.T (RV7) on the
DA board as shown in Fig. 28-5.
6. Set the SCAN selector to UNDER position.
7. Minimize the side pincushion distortion with S.P.U (RV6) on the
DA board as shown in Fig. 28-4.
RVS (S.P.N)
RV6 (S.P.U)
[W]
==>
[ill
¢=
[IB]
Fig. 28-4
RV7 (S.P. T)
Ii
I
\I
==>
[ill
¢=
[ill]
Fig. 28-5
4-77
RV25 (Y. TILT)
Fig. 28-6
RV13 (Y.BOW)
Fig. 28-7
Horizontal Lineality Adjustment
l. Input only the V line of cross-hatch signal.
2. Adjust the horizontal centering with H CENTER (RYI4) on the DA
board.
3. Adjust the balanceofH.lineality with H.L.B (RV22) on the DA board
as shown in Fig. 28-8.
4. Adjust the gain of H.lineality with H.L.G (RV21) on the _DA board as
shown in Fig. 28-9.
5. Adjust the H.W!DTH with H.W.N (RYl) on the DA board.
6. Mark tracking by repeating step 3. through 5.
7. Set the SCAN selector to UNDER position.
8. Adjust the H.WIDTH with H.W.U (RY2) on the DA board
RV28 (H.L.8)
Fig. 28-8
RV21 (H.L.G)
Fig. 28-9
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DA board
RV3 ""1
(V.H.N)
@J ~
RV1 ""1 ""1 RV2 ""1
(H.W.N)
~
@i (H.w.ui@i
( :.:~)
~ ~
RV6
(S.P.U)
RV?
(S.P.T)~
RV13
(Y.BOW)~
RV21
(H.L.G)~
RV22 ~
(H.L.B)
RV14
1(§1
(H.CENTER) ~
~
RV25
~(Y.TILT)
RVB
~(V.L.G)
""1
RV9
~
(V.L.B)
""1 RV10
~
(V.CENTER)
~~
~~
~~
4-78