Sony KV-XA29K94, Руководство по обслуживанию

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KV-XA29K94/XA34K94
RM-962
5-3. PICTURE QUALITY ADJUSTMENTS
SUB COLOR ADJUSTMENT (KV-XA25/XA29)
1. Select Video.
2. Input a NTSC 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. Select the ‘Wide’ mode, write the ‘same data-3 steps’ for both
PAL and NTSC input.
SUB COLOR ADJUSTMENT (KV-XA34)
1. Select Video.
2. Input NTSC Color Bar
3. Set to following condition PICTURE 100%, BRIGHTNESS
50%, Color 50%.
4. Connect an oscilloscope to pin
1
(BOUT) of CN305, A
Board.
5. Set the service mode and select SAJ 3 ‘SCL’ with
1
and
4
of the commander then adjust the VB2=VB3=VB4
3
and
6
.
6. Press
[MUTING]
→ -
of the commander to write the data.
7. Add 6 steps and save the data.
8. Select "WIDE" mode, write the "SAME DATA" 3 steps.
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 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
.
5-4. DISPLAY POSITION ADJUSTMENT
PIP POSITION
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 (60Hz)
1. Input 525/60Hz, set to Service Mode.
2. Using the
1
and
4
buttons, select category GEO (Service
Mode).
3. Raise/lower the data using the
3
and
6
buttons.
Select and adjust the following items to obtain obtimum
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 (60Hz)
4. Input monoscope signal.
5. Adjust condition change to WIDE MODE: ON.
6. Using the
1
and
4
button select category GEO (Service
Mode).
7. Copy (item from normal mode (60Hz)) adjusted data for the
following items:
Service Item
GEO : 01 HSZ H POSITION
05 VSZ V POSITION
06 SCO S CORRECTION
07 VLN V LINEARITY
8. 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
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.
6. Press
[MUTING]
→
-
of the commander to write the data.
7. Adjust SAJ 1 "SHU" as step 3 to 6 when receiving TV mode.
VB1
VB2
VB3 VB4
VB1 = VB2 = VB3 = VB4
VB1
VB2 VB3
VB4
VB2 = VB3 = VB4
VB2 = VB3 = VB4 (Difference is within 70mV)
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.