[H Blanking Adjustment] - Sony BVM-D32E1WA Maintenance Manual

Deflection yoke
DY spacer
TLV
XBV
XCV
APH
Fig. 1-5
• Final check
After the adjustment is complete, confirm that the
landing error does not occur even the BVM monitor is
directed in all directions of east, west, north and south.
Return the LCC and DU to their ON positions.
16. LCC adjustment
(1) Adjust the landing at all four corners with LCC.
(White uniformity)
(2) Confirm that "LCC LT", "LCC LB" "LCC RT" and
"LCC RB" are all in the pre-set values (128).
(3) Check in which direction the CRT screen is directed.
Adjust the direction using "LCC DIR".
(4) Change the signal to the R then G the B. Check
landing at the corners when each single color is
displayed and at white screen. When the color purity
is poor at the any corners, adjust "LCC LT", "LCC
LB" "LCC RT" and "LCC RB" so that the landing at
all corners is optimum.
When the adjustment is complete, save the adjustment
data and fix the purity magnet with white paint.
Note: Use the Auto Setup Probe (BKM-14L) as
much as possible and perform the automatic
adjustment.
BVM-D32E1WA/D32E1WE/D32E1WU
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TLH
H.TRP
YCH
YBH
Neck assy
C board

[H Blanking Adjustment]

. . . . . Preparations
1. Connect a signal generator and connect the HD (1125)
cross-hatch signal to the input. Set the CRT screen to
all black display.
Note: The following adjustment menu is located inside the
E BOARD menu of the MAINTENANCE menu.
H BLK LEFT
H BLK RIGHT
H CENTER
H PHASE
H SIZE
• 1080/60i (33 kHz) 16:9 NORMAL mode horizontal
blanking adjustment
1. Select 1080 16:9 NORM of the SCREEN mode using the
INPUT CONFIGURATION menu of the SETUP menu.
2. Connect the MODE1 1080/60i (33 kHz) cross-hatch
signal to the input.
3. Adjust the H. BLK. LEFT data to the minimum (0).
Adjust the H. BLK. RIGHT data to the maximum (255).
4. Adjust BRIGHT to its maximum.
5. Reduce the H. SIZE so that the left-most end and the
right-most end of raster are visible without any
lacking.
6. Adjust the H. CENTER data so that the raster comes to
the center of the effective screen (A= B is obtained.)
(Fig. 1-6)
When this adjustment is complete, take note of the H.
CENTER adjustment data.
7. Adjust the H. SIZE so that the effective screen of the
raster is 10 mm smaller both in the right and the left.
8. Set BRIGHT to the normal position.
9. Adjust the H. PHASE data so that the signal comes to
the center of the raster (C=D is obtained.)
When this adjustment is complete, take note of the H.
CENTER adjustment data.
10. Adjust BRIGHT to its maximum.
11. Adjust the H. BLK. LEFT data so that the blanking is
position at 6 mm outside the left-most end of the cross-
hatch signal area. (Fig. 1-7.)
When this adjustment is complete, take note of the H.
BLK. LEFT adjustment data.
12. Adjust the H. BLK. RIGHT data so that the blanking is
position at 3 mm outside the right-most end of the
cross-hatch signal area. (Fig. 1-7.)
Effective screen area
Deflection area (Raster)
Signal area
A
C
Fig. 1-6
H CENTER
A = B
B
D
H PHASE
C = D
3-5