Sony KV-AR25M86 Service Manual ▷ View online
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25
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KV
-AR25M86
-AR25M86
RM-993
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– 26 –
KV
-AR25M86
-AR25M86
RM-993
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9
NOTE
•
shaded items are fixed data.
• Standard data listed on the Adjustment Item Table are reference values, therefore it may be different for each model and for each mode.
• Note for Different Data Those are the standard data values written on the microprocessor. Therefore, the data values of the modes and stored respectively in the memory.
In case of a device replacement, adjustment by rewriting the data value is necessary for some items.
– 27 –
KV-AR25M86
RM-993
ITEM INFORMATION
No. OPB0 OP1
No. OPB0 OP1
Item
KV-AR25M86
M
1
D/K
1
I
1
B/G
1
AR34/29*
0
SECAM
1
XTAL 3.58
1
XTAL 4.43
1
AV Input
00 = no AV Input
01 = 1 AV Input
10 = 2 AV Input
11 = 3 AV Input
DVD Input
Effective only when "AV Input" is set to 3 AV Input
PIP 4
PIP 4
0 = disabled,
1 = enabled
No. OPB1 OP2
Item
KV-AR25M86
1
1
DVD Input
1
PIP 4
1
Thai Bil
0
HDEV
1
NICAM
1
AV Input
TOP
0
Initial Menu
Initial Menu Setup
0 = disabled,
1 = enabled
AP2
Auto Processor Selection
0 = AP, 1 = AP2.
Auto PIC
*3
Auto Picture Improvement
0 = off
PNC1/PNC2
1 = activate
PNC1/PNC2
A-TVsys
Auto TV System in Auto Program0 = disabled, 1 = enabled
US ST
*
USA Stereo
0 = disabled,
1 = enabled
DTE
DTE Model Selection
0 = Non DTE,
1 = DTE
Forced 50/60
Forced to 50/60 Hz during no signal condition 0=60Hz, 1=50Hz
Color SW
*2
Color Data Selection in Dynamic Mode
0 = 65 (No PIP), 1 = 57 (PIP)
Note:
*1
- For XA21/XH29 Models Only
*2
- For XA34/29/25 Models Only
*3
- For PNC3, the enables are from service item APG and APB.
No. OPB2 OP3
Item
KV-AR25M86
Colour SW*
2
1
Forced 50/60
0
DTE
1
US ST
0
A-TVsys
1
Auto PIC
1
AP2
1
Initial menu
1
APPLICABLE TO XS ONLY - Sub Language Selection (Bit 0 - Bit 2)
Korean Stereo*
Korean Stereo
0 = disabled,
1 = enabled
PNC2*
2
Enable switch of PNC2
0 = disable,
1 = enable
Video NTSC3.58*
Video Color System
0 = Multi System,
1 = Single System (NTSC3.58)
Wide
Enable wide mode
0 = disable,
1 = enable
Note : *APPLICABLE FOR NTSC MODELS ONLY
No. OPB3 *OP4
Item
KV-AR25M86
Thai/Korean
1
Arabic/C.Chinese
1
Chinese(multi mdl)
1
Video3
0
Vid NTSC3.58
0
Korean ST
0
PNC2
0
Wide
1
– 28 –
KV-AR25M86
RM-993
4-3. ADJUSTMENT FOR NON DIGITAL TEXTURE
ENHANCER (DTE) MODEL
(not used for this model)
SUB COLOR ADJUSTMENT (KV-AR25/AR29)
1. Select Video.
2. Input PAL Color Bar
3. Set to following condition PICTURE 100%, BRIGHTNESS
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
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
8. Select "WIDE" mode, write the "SAME DATA- 3 STEPS" for
both PAL and NTSC Color Bar input.
SUB COLOR ADJUSTMENT (KV-AR34)
1. Select Video.
2. Input PAL Color Bar
3. Set to following condition PICTURE 100%, BRIGHTNESS
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
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
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.
Caution : Offset steps of Sub Color data should be added only
Caution : Offset steps of Sub Color data should be added only
after Sub Hue adjustment is completed.
SUB HUE ADJUSTMENT
1. Select Video 1.
2. Input a NTSC 3.58 color-bar, video into Video 1.
3. Set the following condition:
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
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.
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.
the same line. Ideal difference level between VB2 and VB3
should be within ± 110mV.
VB1
VB2
VB3
VB4
VB2 = VB3 = VB4
VB2 = VB3 = VB4 (FOR PAL SUB COLOR ADJUSTMENT)
(Difference is within 70mV)
VB1 = VB4 (FOR NTSC SUB COLOR ADJUSTMENT)
(Difference is within 70mV)
(Difference is within 70mV)
VB1 = VB4 (FOR NTSC SUB COLOR ADJUSTMENT)
(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:
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
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:
2. Input NTSC Color Bar.
3. Set the following condition:
DTE
: ON
Picture Mode : Dynamic
NTSC 75% Color Bar
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
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
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.
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
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