Sony TRINITRON KV-AR29M90, Service Manual

Page: 26 / 103

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KV-AR29M90
RM-993
4-3. ADJUSTMENT FOR NON DIGITAL TEXTURE
ENHANCER (DTE) MODEL
(not used for this model)
SUB COLOR ADJUSTMENT
1. Select Video.
2. Input PAL 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. Input NTSC Color Bar to set and repeat items (3 to 7).
8. Select "WIDE" mode, write the "SAME DATA- 3 STEPS" for
both PAL and NTSC Color Bar input.
SUB COLOR ADJUSTMENT
1. Select Video.
2. Input PAL 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. Input NTSC Color Bar to TV set and repeat items 3 to 7.
9. Select "WIDE" mode, write the "SAME DATA- 3 STEPS" for
both PAL and NTSC Color Bar input.
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
.
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
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.
VB1
VB2 VB3
VB4
VB2 = VB3 = VB4
VB2 = VB3 = VB4 (Difference is within 70mV)
± 110mV
4-4. ADJUSTMENT FOR DIGITAL TEXTURE
ENHANCER (DTE) MODEL
Y LEVEL ADJUSTMENT
1. Select Video.
2. Input PAL Color Bar to TV set (white reference 100%).
3. Set the following condition:
DTE : ON
Picture Mode : Dynamic
4. Connect an oscilloscope to pin
1
(CV/Y in) of CN106, A
Board.
5. Set to Service Mode and YCT 08 ‘YOL’ with
1
and
4
of the
commander then adjust to VY within spec with
3
and
6
.
6. Then press
[MUTING]
→ -
to write the data.
7. Select RF.
8. Repeat item
2
to
4
.
9. Set to Service Mode and YCT 04 ‘SCT’ with 1 and 4 of the
commander then adjust to VY within spec with
3
to
6
.
10. Copy SCT data to NTSC (RF).
SUB COLOR (YCT) ADJUSTMENT
1. Select Video.
2. Input NTSC Color Bar.
3. Set the following condition:
DTE : ON
Picture Mode : Dynamic
NTSC 75% Color Bar
4. Connect an oscilloscope to pin
2
(B-Y in) of CN303, A Board.
5. Set to Service Mode and YCT 0A ‘COL’ with
1
and
4
of the
commander then adjust to VB within spec with
3
and
6
.
6. Then press
[MUTING]
→
-
to write the data.
7. Select RF.
8. Repeat item no
2
to
4
.
9. Set to Service Mode and YCT 03 ‘COL’ with
1
and
4
of the
commander then adjust the waveform within spec with
3
and
6
.
10. Then press
[MUTING]
→
-
to write the data.
11. Input PAL Color Bar (75%) and repeat item no 8 to 10.
SCT Setting (Video Mode) : 07h (NTSC & PAL)
SPEC: VY : 1.2 Vpp ± 0.05m Vpp
SPEC :
VIDEO : VB = 0.931 Vpp ± 50 mVpp
RF : VB = 0.931 Vpp ± 50 mVpp
VY
VB