Sharp 21V-R70M - Page 21

21-1
21-2
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
HISTORY
OF REVISION
SUB-PICTURE
V01 STEP RANGE 0-127
I
2
C BUS CONTROL
OPTION SET UP, BUS SET UP, SCREEN, WHITE BALANCE, SUB-BRIGHTNESS
WINDOW PATTERN
230V
CRT SCREEN DISPLAY.
1) LET THE GUN POINT AT WHITE POSITION (AS ATTACH DRAWING),
ADJUST V01 BUS DATA UNTIL BRIGHTNESS Y=150 cd/m2.
NOTE: ALLO WABLE D ATA FOR V01 IS >= 90, EVEN Y CAN'T MATCH
THE SPEC
[VOLTAGE CONFIRMATION]
BRIGHTNESS Y=150 cd/m2
SYMBOL REVISED CONTENT,
US14
WHITE
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
HISTORY
OF REVISION
1) GET IN Y-MUTE FUNCTION BY R/C.
2) ADJUST THE V02 BUS DATA TO GET A WAVEFORM AS BELOW.
3) DISABLE THE Y-MUTE
**PLS TAKE NOTE THAT SERVICE MODE DATA F61 NEED TO SET +8
SUB-TINT
V02 STEP RANGE 0-127
I
2
C CONTROL
OPTION SET UP, BUS SET UP, VCO ADJ, RF-AGC
US 10 CH HALF COLOR BAR PATTERN
230V
B-AMP TR BASE (TP853)
CONFIRM WITH OSCILLOSCOPE
[CONFIRMATION]
SYMBOL REVISED CONTENT,
B-AMP BASE (TP853)
MUST BE IN STEPPING
LEVEL
21V-R70M