Sharp LC-20AV1U Service Manual page 21

( on the service
ITEM
remote control )
C-DG ( C/D2 )
Vol down
C-DB ( C/D2 )
Vol down
7F
LANGUAGE
STEREOTYP
ACCESSCODE
BLACKLIGHT
HD
HRD
NCM
ASPECT
2. +B Adjustment
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dark and
the unit does not operate correctly.
Test point Adj. Point
TP401(B+)
VR601
TP300(GND)
M. EQ.
DC Voltmeter
Note: TP401, TP300(GND), VR601 --- Main CBA
1. Connect DC Volt Meter to TP401 and TP300(GND).
2. Adjust VR601 so that the voltage of TP401 becomes
+21.0±0.5V DC.
BUTTON
DATA
VALUE
5 127
6 131
FF
SPA/FRA
MTS
ON
Vol down ON
OFF
OFF
OFF
OFF
Mode Input
--- ---
Spec.
+21.0±0.5V DC.
3. Flicker Adjustment
Note: Use remote control unit
1. Enter the Service mode. (See page 5-1)
2. Press "2" button on the remote control unit.
The following screen appears.
3. If Flicker Adjustment is not fit, the screen become the
following.
FLASH
(Go and Off)
4. Press "CH o/p" buttons on the remote control unit
until flash stops.
4. TV Reset to Default
To reset software, press "5" button on the remote
control unit for at least 5 seconds after pressing
"FLASHBACK" button on the remote control unit.
5-2
L0370EA