Sharp 21V1-L, Service Manual

Page: 20 / 58

21V1-L
5 – 8
MODEL NAME
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
(AT SELF ADJUSTMENT MODE)
1)GO INTO SERVICE MODE,BY SELECTING THE SERVICE DATA
V14
2)PRESS THE R/C FOR AUTO PIF-VCO KEY, OSD APPEAR "OK" AT SCREEN
3)IF APPEAR "NG" PLS REPEAT STEP 2
(AT MANUAL ADJUSTMENT MODE)
ADJUST
1)GO INTO SERVICE MODE, BY SELECTING THE SERVICE DATA V14
PROCEDURE 2) ADJUST THE DATA UP/DOWN UNTIL IC801 PIN 7 VOLTAGE BECOME AS SPECIFIED BELOW
I2C CONTROL
OPTION SET UP, BUS SET UP
NO SIGNAL (RASTER) CONDITION
AC 220
21V1-L
PIF-VCO
V14 STEP RANGE 0 - 63
CONFIRMATION ON CRT DISPLAY(AUTO), IC801 PIN 7 VOLTAGE (MANUAL).
[CHECKING SPEC]
2.5 ± 0.5 V DC (CHECKING SPEC : 2.50 ± 1.5 V)