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4-3. PICTURE QUALITY ADJUSTMENTS
SUB COLOR ADJUSTMENT
1. Select Video.
2. Input a PAL color-bar.
3. Set to the following condition:
PICTURE 100%, BRIGHTNESS 50%, COLOR 50%
4. Connect an oscilloscope to pin 1 (B OUT) of CN305, A board.
5. Set to Service Mode and select SAJ 'SCL' with 1 and 4 of
the commander then adjust to VB2=VB3=VB4 with 3 and
6.
¡ - of the commander to write the data.
[MUTING]
6. Press
7. Adjust SAJ 'SCL' as step 3 to 5 when receiving NTSC color-
bar.
8. Select the 'Wide' mode, write the 'same data-3 steps' for both
PAL and NTSC input.
VB1 VB2
VB3 VB4
VB2 = VB3 = VB4
SUB HUE ADJUSTMENT
1. Select Video 1.
2. Input a NTSC 3.58 color-bar, video into Video 1.
3. Set the following condition:
PICTURE 100%, BRIGHTNESS 50%, COLOR 50%
4. Connect an oscilloscope to pin 1 (B OUT) of CN305, A board.
5. Select SAJ O1 "SHU" with 1 and 4 of the commander by
setting to Service Mode and adjust to VB1=VB2=VB3=VB4
with 3 and 6.
VB1 VB2
VB1 = VB2 = VB3 = VB4
¡ - of the commander to write the data.
[MUTING]
6. Press
7. Adjust SAJ O1 "SHU" as step 3 to 6 when receiving TV mode.
VB3 VB4
4-4. DEFLECTION ADJUSTMENT
NORMAL MODE (50Hz)
1.
Set to Service Mode.
Using the 1 and 4 button, select category GEO (Service
2.
Mode).
Raise/lower the data using the 3 and 6 buttons.
3.
Select and adjust the following items to obtain optimum
image.
Service Item
GEO : 00
HPS
01
HSZ
02
PAP
03
TLT
04
VPS
05
VSZ
06
SCO
07
VLN
08
BOW AFC BOW
09
AGL
0A
UPN
0B
LPN
NORMAL MODE (60Hz)
11. Input 525/60Hz signal.
12. Using the 1 and 4 buttons select category GEO (Service
Mode).
13. Select and adjust the following items to obtain obtimum image.
Raise/lower the data with the 3 and 6 buttons.
Service Item
GEO : 00
HPS
01
HSZ
02
PAP
03
TLT
04
VPS
05
VSZ
06
SCO
07
VLN
08
BOW AFC BOW
09
AGL
0A
UPN
0B
LPN
Note:
For Deflection Adjustment, set PICTURE MODE to "SOFT".
4-5. A BOARD ADJUSTMENT AFTER IC003
(MEMORY) REPLACEMENT
1.
Enter to Service Mode.
Press commander buttons 5 and - (Data Initialize), and
2.
2 and - (Data Copy) to initialize the data.
3.
Call each item number and check if the respective screen
shows the normal picture.
In cases where items are not well adjusted, rectify the fine
adjustment.
Write the data per each item number (
4.
Select item numbers "OPB00" (OP1), "OPB01" (OP2), "OPB
02" (OP3) and "OPB 03" (OP4) respectively set the bit per
model with command buttons 3 and 6.
Press commander buttons 8 and - (Test Normal) to return
5.
to the data that was set on the shipment from the factory.
(This will also cancel Service Mode.)
– 33 –
KV-XA21M93
H POSITION
H SIZE
PIN AMP
TILT
V POSITION
V SIZE
S CORRECTION
V LINEARITY
AFC ANGLE
UPPER CORNER PIN
LOWER CORNER PIN
H POSITION
H SIZE
PIN AMP
TILT
V POSITION
V SIZE
S CORRECTION
V LINEARITY
AFC ANGLE
UPPER CORNER PIN
LOWER CORNER PIN
[MUTING]
+-).
RM-952
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