Viewing Vcom Test Pattern - Sony KDL-22CX520 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
e. Press key Enter or Select on remote commander twice to show the VCOM
TEST PATTERN.
DIGITAL (DIG_SRV_MODE)
TEST PATTERN
--> 1 Video
＊1 White
2 Ramp 2 Ramp
3 R Raster
4 G Raster
5 B Raster
6 Color Bar
7 VCOM Pattern1
8 VCOM Pattern2
9 Oｆｆ
Pl Please input a white level. i t hit l
(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
SERVICE
l
SERVICE
0
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.
b. Select 001 ADJUST item by pressing key 1 or 4 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
To access VCOM , Step 4, Please select Digital Service Mode
a. Select 007 VCOM category by pressing key 3 or 6 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 6 to show the OSD
again and go back to VCOM adjustment STEP3
DIGITAL
010
000 SRV_OSD_EN
VCOM Test Pattern Step 4 menu sample
–40–
KDL- 22, 32, 40, 46 CX520
KDL-32, 40, 46 CX523
SERVICE
VCOM
ADJUST 0
SERVICE
VCOM
1
RM-GD020, RM-CD013
RM-GD020