Sharp 21V-FW100S - Page 20

21V-FW100S
5 – 9
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL
PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
SYMBOL
HISTORY
OF REVISION
REVISED CONTENT .
MODEL NAME
RF-AGC
V08
STEP RANGE
0-127
21V-FW100S
I2C CONTROL
OPTION SET UP, BUS SET UP
US10CH HALF COLOR BAR
RF INPUT
FIELD STRENGTH
53dBµV
(FIX)
TUNER AGC TERMINAL (JA442 OR T P 201) OR CRT DISPLAY CONFIRMATION
(AT SELF ADJUSTMENT MODE)
1.GO TO SERVICE MODE
2.GO TO SERVICE DATA
V08
, PRESS R/C TO OPEARATE AUTO-AGC KEY AND CONFIRM THE
OK
DISPLAY ON THE SCREEN .
[VOLTAGE CONFIRMATION ]
MAX - 0.1V dc
2. CHANGE THE ANTENNA INPUT SIGNAL TO 63~67 dBuV, AND MAKE SURE THERE IS NO
NOISE.
3. CHANGE THE ANTENNA INPUT SIGNAL TO 90~95 dBuV TO BE SURE T H AT T H ERE IS NO
CROSS MODULATION BEAT.
3.IF APPEAR NG PLS REPEAT STEP 2 AGAIN.
(AT MANUAL ADJUSTMENT MODE)
1. ADJUST THE V08 BUS DATA UNTIL AGC TERMINAL VOLTAGE BECOME MAXIMUM,THEN DROP
0.1V BELOW MAXIMUM VOLTAGE.