Viewing Vcom Test Pattern - Sony KDL-22EX420 Service Manual

Service Adjustment

4-9. Viewing VCOM Test Pattern

4-9-1. Step 1
To access VCOM Step 1, please select Digital Service Mode first
a. Select 003 DIG SRV MODE category by pressing key 2 or 5 on remote _ _
commander.
b. Press key 0 on remote commander to go to TEST PATTERN Mode.
c. Press key Enter or 1 or 2 on remote commmander to go into Video TEST
PATTERN.
d. Press key 7 or 8 on remote commander to select the test pattern d Press ke 7 or 8 on remote commander to select the test pattern
e. Press key Enter or Select on remote commander twice to show the VCOM
TEST PATTERN.
DIGITAL (DIG_SRV_MODE)
TEST PATTERN TEST PATTERN
--> 1 Video
＊1 White
2 Ramp
3 R Raster
4 G Raster
5 B Raster
6 Color Bar 6 C l B
7 VCOM Pattern1
8 VCOM Pattern2
9 Oｆｆ
Please input a white level.
(00-10)
_ _
VCOM Test Pattern Step 1 menu sample
4-9-2. Step 2
To access VCOM Step 2, please select VPCService Mode first
a. Select 002 VCOM category by pressing key 2 or 5 on remote commander.
b. Select 000 ENABLE item by pressing key 1 or 4 on remote commander.
c. Change ENABLE from 0 to 1 to enable VCOM adjustment.
PQP
002 VCOM
000 ENABLE
VCOM Test Pattern Step 2 menu sample
g y y p g y
SERVICE
SERVICE
0
KDL- 22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
4-9-3. Step 3
To access VCOM Step 3, please select VPC Service Mode.
a. Select 002 VCOM category by pressing key 2 or 5 on remote commander. a Select 002 VCOM category by pressing key 2 or 5 on remote commander
b. Select 001 ADJUST item by pressing key 1 or 4 on remote commander.
c. Change data by pressing key 3 or 6 on remote commander.
d. Finish the adjustment when the picture seems OK.
PQP
002
001
VCOM Test Pattern Step 3 menu sample
4-9-4. Step 4 4-9-4 Step 4
To access VCOM Step 4, please select Digital Service .
a. Select 007 VCOM category by pressing key 2 or 5 on remote commander.
b. Change data from 1 to 0 by pressing key 3 or 6 on remote commander.
c. Confirm the final result of the VCOM adjustment .
d. If OK, Finish the VCOM adjustment. If NG, pressing key 3 or 6 to show
the OSD again and go back to VCOM adjustment STEP3
DIGITAL
010 VCOM
000 SRV OSD EN 000 SRV_OSD_EN
VCOM Test Pattern Step 4 menu sample
52
KDL- 22, 26 EX420, 32,40,46 EX520
SERVICE
VCOM
ADJUST 0
SERVICE
1 1
RM-GD020, CD013
RM-GD020