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4-3. VA-158 Board Adjustment
4-3. VA-158 Board Adjustment
4-3-1. TEST SAW Level Adjustment
Equipment: Oscilloscope
Preparations
. Open the left side board.
. Extend the VA-158 board.
. Setting for MSU-700
TEST 1 button → ON
. Clear the reference file.
Set the setup menu as follows.
MENU: Maintenance
PAGE: Reference File
ITEM: 10 sec Clear → On
MENU: Paint
PAGE: Video Level
ITEM: White R/G/B
(Move the cursor to each item and press the MENU SEL
switch for ten seconds while "?" is blinking. Then,
message "REF Clear" will be displayed.)
4-4 (E)
Adjustment Procedures
1. MSU menu operation:
. PAINT button → ON (lit)
. Touch panel operation
(Page 1/3) → [White]
2. R-ch Adjustment
Test Point:
TP17/extension board
Adjustment Item: R
A = 400 ± 4 mVp-p
Specification:
3. G-ch Adjustment
Test Point:
TP11/extension board
Adjustment Item: G
A = 400 ± 4 mVp-p
Specification:
4. B-ch Adjustment
Test Point:
TP5/extension board
Adjustment Item: B
A = 400 ± 4 mVp-p
Specification:
Triming File Store
1. S1-5/IF-569 board → ON
2. AUTO button (Iris control block)/MSU-700
→ ON (lit)
3. MSU menu operation:
. PAINT button → ON (lit)
. Touch panel operation
(Page 1/3) → [White] → [Clear] → [|||White|||]
Message "Triming file stored" will be displayed
three seconds.
Resetting after Adjustment
. S1-5/IF-569 board → OFF
A
HDC-750A
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