Sony KV-XA25M50, Руководство по обслуживанию

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KV-XA25M50/XA25M80/XA29M50
RM-954
KV-XA29M80/XA29M90/XA29N90
RM-954 RM-914
– 80 –
5-3. 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 3 ‘SCL’ with
1
and
4
of the commander then adjust to VB2=VB3=VB4 with
3
and
6
.
6. Press
[MUTING]
→ -
of the commander to write the data.
7. Adjust SAJ 3 ‘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.
SUB HUE ADJUSTMENT
1. Select Video 1.
2. Input a NTSC 3.58 color-bar, into Video.
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 1 'SHU' with
1
and
4
of the commander by
setting to Service Mode and adjust to VB1=VB2=VB3=VB4
with
3
and
6
.
6. Press
[MUTING]
→
-
of the commander to write the data.
7. Adjust SAJ 1 'SHU' as step 3 to 6 when receiving TV mode.
5-4. DISPLAY POSITION ADJUSTMENT
PIP POSITION
(Not used for this model)
1. Input a PAL color-bar.
2. Press PIP button of the remote commander to set the PIP
picture.
3. Set to Service Mode.
4. Use
1
and
4
of the remote commander to select PIP 1
“PPH” and use
3
and
6
to set data “15”.
5. Select PIP 2 “PPV” to set data “2E”.
6. Press
[MUTING]
→
-
of the remote commander to write the
data.
7. Use the screen display menu changing the PIP position to
check the PIP position.
5-5. DEFLECTION ADJUSTMENT
NORMAL MODE (50Hz)
1. Set to Service Mode.
2. Using the
1
and
4
button, select category GEO
(Service Mode).
3. Raise/lower the data using the
3
and
6
buttons.
Select and adjust the following items to obtain optimum
image.
Service Item
GEO : 00 HPS H POSITION
01 HSZ H SIZE
02 PAP PIN AMP
03 TLT TILT
04 VPS V POSITION
05 VSZ V SIZE
06 SCO S CORRECTION
07 VLN V LINEARITY
08 BOW AFC BOW
09 AGL AFC ANGLE
0A UPN UPPER CORNER PIN
0B LPN LOWER CORNER PIN
WIDE MODE (50Hz)
4. Input PAL color bar.
5. Adjust condition change to WIDE MODE : ON.
6. Using the
1
and
3
button, select category GEO
(Service Mode).
7. Copy (item from normal mode (50Hz)) adjusted data for
the following item:
Service Item
GEO : 01 HSZ H POSITION
05 VSZ V POSITION
06 SCO S CORRECTION
07 VLN V LINEARITY
8. Raise/lower data using
3
and
6
buttons, select and
adjust the following items to obtain optimum image.
Service Item
GEO : 00 HPS H POSITION
02 PAP PIN AMP
03 TLT TILT
04 VPS V POSITION
08 BOW AFC BOW
09 AGL AFC ANGLE
0A UPN UPPER CORNER PIN
0B LPN LOWER CORNER PIN
9. After confirm WIDE MODE : ON – OFF.
10. Repeat same steps for NTSC input signal.
VB1
VB2
VB3
VB4
VB1 = VB2 = VB3 = VB4
The highest level of VB1,VB2,VB3,VB4 must be aligned
at the same line. Ideal difference level between VB2 and
VB3 should be within ± 110mV.
VB2 = VB3 = VB4 (Difference is within 70mV)
VB1
VB2 VB3
VB4
VB2 = VB3 = VB4