Sony KV-AR25M80A Service Manual ▷ View online
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17
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KV
-AR25M80A
-AR25M80A
RM-952
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–
18
–
KV
-AR25M80A
-AR25M80A
RM-952
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.
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– 19 –
KV-AR25M80A
RM-952
ITEM INFORMATION
No. OPB0 OP1
No. OPB0 OP1
Item
KV-AR25M80A
M
1
D/K
1
I
1
B/G
1
2nd Lang
1
SECAM
1
XTAL 3.58
1
XTAL 4.43
1
AV Input
00 = no AV Input
01 = 1 AV Input
10 / 11 = 2 AV Input
DVD Input
Effective only when “AV Input” is set to 2 AV Input
Dis Fav.
Disable Favorite Channel (Only Effective For 21” & 14” Models Only)
No. OPB1 OP2
Item
KV-AR25M80A
0
1
DVD Input
1
Dis Fav.
0
Thai Bil.
0
HDEV
0
NICAM
0
AV Input
TOP
0
Pic Rot
*1
Picture Rotation Feature Switch
0 = disabled, 1 = enabled
2199 Curve
*1
2199 Volume Curve Selection
0 = Others, 1= 2199 Volume Curve.
Auto PIC
Auto Picture Improvement
0 = inactive, 1 = active
A-TVsys
Auto TV System in Auto Program0 = disabled, 1 = enabled
US ST
USA Stereo
0 = disabled,
1 = enabled
AV Mono
*1
AV Mono models, 0 = Stereo, 1 = Mono (No Balance & Surround selection).
11 Key
Front Key Selection
0 = 7 key model, 1 = 11 key model
Color SW
*2&*1
Color Data Selection in Dynamic Mode
0 = 65 (No PIP), 1 = 57 (PIP)
Note:
*1
- For XA21/XG25 Models Only
*2
- For XA34/29/25 Models Only
No. OPB2 OP3
Item
KV-AR25M80A
Colour SW
*
2&*1
1
11 Key
0
AV Mono
*1
0
US ST
0
A-TVsys
0
Auto PIC
1
2199 Curve
*1
0
Pic Rot
*1
1
AP_XG
*1
To select the XG AP (board B6) )
0: No;
1 = Yes
Note:
*1
- For XA-21 / XG25 Models Only
No. OPB3 *OP4
Item
KV-AR25M80A
(unused)
0
AP_XG
*1
1
Vid NTSC3.58
0
(unused)
0
NOTE:
When Bit 7, 6 & 5 = 000, Only PAL color system is selected.
When Bit 7 is selected, Auto, PAL & NTSC 4.43 Color system is enable
When Option is single color system, Color system cannot be changed & “AUTO” will not be displayed.
When Bit 7 is selected, Auto, PAL & NTSC 4.43 Color system is enable
When Option is single color system, Color system cannot be changed & “AUTO” will not be displayed.
(unused)
0
(unused)
0
(unused)
0
(unused)
0
– 20 –
KV-AR25M80A
RM-952
3-3. PICTURE QUALITY ADJUSTMENTS
SUB COLOR ADJUSTMENT SCL
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
the commander then adjust the VB2=VB3=VB4 3 and 6.
6. Add 6 steps and save the data.
7. Input NTSC Color Bar.
8. Repeat item 4 to 6.
9. Select "WIDE" mode, write the "SAME DATA- 3 STEPS" for
7. Input NTSC Color Bar.
8. Repeat item 4 to 6.
9. Select "WIDE" mode, write the "SAME DATA- 3 STEPS" for
both PAL and NTSC Color Bar input.
SUB HUE ADJUSTMENT (SHU)
1. Select Video.
2. Input NTSC3.58 Color Bar
3. Set to following condition PICTURE 100%, BRIGHTNESS
2. Input NTSC3.58 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 01 ‘SHU’ with 1 and 4
of the commander then adjust the VB1=VB2=VB3=VB4 3
and 6.
and 6.
6. Press
[MUTING]
→ - of the commander to write the data.
7. Adjust SAJ 01 "SHU" as step 2 to 5 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.
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)
(Difference is within 70mV)
3-4. DEFLECTION ADJUSTMENTS
NORMAL MODE (50Hz)
1. Set to Service Mode.
2. Using the 1 and 4 buttons select category GEO (Service
2. Using the 1 and 4 buttons select category GEO (Service
Mode).
3. 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
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 a PAL color-bar.
5.
Adjust condition change to WIDE MODE : ON.
6.
Using the 1 and 4 button, select category GEO
(Service Mode).
(Service Mode).
7.
Copy (item from normal mode (50Hz)) adjusted data for
the following item:
Service Item
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.
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.
110mV
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