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4-3. ELECTRICAL ADJUSTMENTS
1.
E Board Adjustment
1-1. Adjust Preparation
Set as follows at the INPUT CONFIGURATION menu of the SETUP menu.
FORMAT .......................... COMPONENT YUV SMPTE/EBU N-10
SLOT NO ......................... 6
SYNC MODE .................. INT
Select E BOARD DATA LOAD from E BOARD menu of MAINTENANCE menu and execute.
• Connection
0
BKM-10R
Extension board/cable kit
(Part No: A-1394-806-A)
(Z board)
BVM-20F1 U/20F1 E
Fig. 1-1.
E board
. D
Oscilloscope
• Arrangement Diagram for Adjustment Parts
1-2. V OSC Adjustment
1. Connect an oscilloscope to Pin @ of IC2007 of the E board.
·n~
JJ
E Board (Component side)
Fig. 1-2.
4-16
2. Adjust the V OSC data so that the amplitude of the V
sawtooth wave becomes 4.0
±
0.2 Vp-p.
Note: The V OSC adjustment menu is under the E BOARD
menu of the MAINTENANCE menu.
4.0
±
0.2 Vp-p
Vlevel
Flg.1-3.
1-3. H OSC Adjustment
Note: The H OSC adjustment menu is under the E BOARD
menu of the MAINTENANCE menu.
• NTSC H OSC Adjustment
I. Connect the NTSC signal generator, and input the cross
hatch signal.
2. Set the SCREEN MODE as follows
at the INPUT
CONFIGURATION menu of the SETUP menu.
SCREEN MODE 4 : 3 NORM
3. Set the EXT SYNC mode. (Turn on the SHIFT button (
LED lights up in orange) and turn on the SYNC button
(LED lights up).)
4. Adjust the H OSC data so that the image becomes still or
flows slowly.
• PAL H OSC Adjustment
I. Connect the NTSC signal generator, and input the cross
hatch signal.
2. Set the SCREEN MODE of the INPUT CONFIGURATION
of the SETUP menu as follows.
SCREEN MODE 4 : 3 NORM
3. Set the EXT SYNC mode. (Turn on the SHIFT button (
LED lights up in orange) and turn on the SYNC button
(LED lights up).)
4. Adjust the H OSC data so that the image becomes still or
flows slowly.
• Adjust so that the image
becomes still or flows slowly.
Fig.1-4.
1-4. H Blanking Adjustment
Refer to 4-1. Basic Adjustment for CRT Replacement
[H
Blanking Adjustment] (Page 4-3).
1-5.
V Blanking Adjustment
Refer to 4-_1. Basic Adjustment for CRT Replacement
[V
Blanking Adjustment] (Page 4-5).
1-6.
Linearity Adjustment
Refer to 4-1. Basic Adjustment for CRT Replacement [Linearity
Adjustment] (Page 4-6).
1-7.
Convergence Adjustment Preparation
Refer to 4-1. Basic Adjustment for CRT Replacement [Focus
Adjustment], [Landing Adjustment],
[H
Blanking Adjustment].
1-8. Static Convergence Adjustment
• Horizontal Static Convergence
Adjust H ST A TIC CONY data so that red and green dots
match in the horizontal direction at the center of the screen.
Note : H ST A TIC CONY adjustment menu is under E BOARD
menu of MAINTENANCE menu. (See Fig. 1-14)
• Vertical Static Convergence
Adjust V STATIC CONY data so that red and green dots
match in the horizontal direction at the center of the screen.
Note : V ST A TIC CONV adjustment menu is under E BOARD
menu of MAINTENANCE menu. (See Fig. 1-14)
1-9. Convergence Adjustment 20-lnch Model
• Preparation
Refer to 4-1. Basic Adjustment for CRT Replacement [20-Inch
Model Convergence Adjustment] (Page 4-8).
• Vertical convergence adjustment
Adjust V CONY TOP data and V CONY BOT data so that a
vertical mis-convergence is minimized at the top and bottom
areas of the screen.
Note : V CONY TOP data and V CONY BOT data adjustment
menu is under E BOARD menu of MAINTENANCE
menu. (See Fig. 1-20)
• Horizontal convergence adjustment
Refer to 4-1. Basic Adjustment for CRT Replacement [20-lnch
Model Convergence Adjustment] (Page 4-9).
• 4 : 3 UNDER SCAN mode convergence adjustment
Refer to 4-1. Basic Adjustment for CRT Replacement [20-lnch
Model Convergence Adjustment] (Page 4-9) .
4-17
• 16:
9
NORMAL SCAN mode convergence adju1tment
Refer to 4-1. Basic Adjustment for CRT Replacernen
t
[20-Inch
Model Convergence Adjustment] (Page 4-9).
• 16: 9 UNDER SCAN mode convergence adjustment
Refer to 4-1. Basic Adjustment for CRT Replacement [20-Inch
Model Convergence Adjustment] (Page 4-9).
1-10.Convergence Adjustment of 14-inch Model
• Preparation
Refer to 4-1. Basic Adjustment for CRT Replacenent [14-Inch
Model Convergence Adjustment] (Page 4-10).
• Convergence adjustment
Adjust V CONY TOP data and V CONV BOT data so that a
vertical mis-convergence is minimized at the topan.d bottom
areas of the screen.
Note : V CONY TOP data and V CONY BOT dat. adjustment
menu is under E BOARD menu of MAll'ITE NANCE
menu. (See Fig. 1-22.)
• 4 : 3 UNDER SCAN mode convergence adjustmi
11
t
Refer to 4-1. Basic Adjustment for CRT Replacenent [14-Inch
Model Convergence Adjustment] (Page 4-10).
• 16:
9
NORMAL SCAN mode convergence adj~
1
m,ent
Refer to 4-1. Basic Adjustment for CRT Replace1ten~ [14-Inch
Model Convergence Adjustment] (Page 4-10).
• 16 : 9 UNDER SCAN mode convergence adjustn:enc
Refer to 4-1. Basic Adjustment for CRT Replaceri~nt [14-Inch
Model Convergence Adjustment) (Page 4-10).
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