Sony KV-XA25M93 Service Manual ▷ View online
–
37
–
KV
-XA25M93/XA29M80
-XA25M93/XA29M80
RM-954
Adjustment Item Table
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.
• The indication as "#" in OP2, OP3 and OP4 means that it would be referred Option Mode Data.
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-
– 38 –
KV-XA25M93/XA29M80
RM-954
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
APPLICABLE FOR XF-L (14" AND 21") MODELS ONLY
No. OPB3 *OP4
Item
KV-XA25M93
KV-XA29M80
Thai
1
1
Arabic
1
1
Chinese
1
1
Video3
0
0
Vid NTSC3.58
0
0
Korean ST
0
0
PNC2
1
1
Wide
1
1
ITEM INFORMATION
No. OPB0 OP1
No. OPB0 OP1
M
1
1
D/K
1
1
I
1
1
B/G
1
1
2nd. Lang
1
1
SECAM
1
1
XTAL 3.58
1
1
XTAL 4.43
1
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
Dis Fav.
Disable Favorite Channel (Effective For XF-L (21" & 14") Models Only)
Item
KV-XA25M93
KV-XA29M80
1
1
1
1
DVD Input
1
1
Dis Fav.
0
0
Thai Bil
0
0
HDEV
1
1
NICAM
1
0
TOP
0
1
AV Input
No. OPB1 OP2
PIC Rotate
*1
PIC Rotation Switch
0 = disabled,
1 = enabled
2199 Curve
*1
2199 volume Curve Selection
0 = Others,
1 = 2199 Volume Curve.
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
AV MONO
*1
AV Mono model
0 = Stereo,
1 = Mono
(No Balance & Surround selection)
(No Balance & Surround selection)
11 Key
Front Key Selection
0 = 7 key model, 1 = 11 key model
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 & APB
No. OPB2 OP3
Item
KV-XA25M93
KV-XA29M80
Colour SW*
2
1
1
11 KEY
0
0
AV Mono*
1
0
0
US ST
0
0
Auto TV sys
1
0
Auto PIC
1
1
2199 Curve*
1
0
0
PIC Rotate*
1
0
1
Item
KV-XA25M93
KV-XA29M80
– 39 –
KV-XA25M93/XA29M80
RM-954
5-3. PICTURE QUALITY ADJUSTMENTS
SUB COLOR ADJUSTMENT
1. Select Video.
2. Input a PAL color-bar.
3. Set to the following condition:
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
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.
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:
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
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.
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
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”
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
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).
Mode).
3.
Raise/lower the data using the 3 and 6 buttons.
Select and adjust the following items to obtain optimum
image.
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).
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.
VB1
VB2
VB3
VB4
VB1 = VB2 = VB3 = VB4
VB1
VB2
VB3
VB4
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.
at the same line. Ideal difference level between VB2 and
VB3 should be within ± 110mV.
VB2 = VB3 = VB4 (Difference is within 70mV)
– 40 –
KV-XA25M93/XA29M80
RM-954
NORMAL MODE (60Hz)
11. Input 525/60Hz signal.
12. Using the 1 and 4 buttons select category GEO (Service
12. Using the 1 and 4 buttons select category GEO (Service
Mode).
13. 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 (60Hz)
14. Input monoscope signal.
15. Adjust condition change to WIDE MODE: ON.
16. Using the 1 and 4 button select category GEO (Service
15. Adjust condition change to WIDE MODE: ON.
16. Using the 1 and 4 button select category GEO (Service
Mode).
17. Copy (item from NORMAL MODE (60Hz)) adjusted data for
the following items:
Service Item
GEO : 01
HSZ
H SIZE
05
VSZ
V SIZE
06
SCO
S CORRECTION
07
VLN
V LINEARITY
18. Raise/lower the data with 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
19. After confirm WIDE MODE : ON – OFF.
Note:
For Deflection Adjustment, set PICTURE MODE to "SOFT".
5-6. H-TRAPEZOID ADJUSTMENT
1.
Receive cross hatch/dot signal.
2.
Adjust RV1801 on C6 board to make H-Trapezoid distortion
best.
5-7. A BOARD ADJUSTMENT AFTER IC003
REPLACEMENT
1.
Enter to Service Mode.
2.
Press commander buttons 5 and - (Data Initialize), and
2 and - (Data Copy) to initialize the data.
3.
Call each item number and check if the respective screen
shows the normal picture.
In cases where items are not well adjusted, rectify the fine
adjustment.
Write the data per each item number (
[MUTING]
+-).
4.
Select item numbers “OPB00” (OP1), “OPB01” (OP2), "OPB
02" (OP3) and "OPB 03" (OP4) respectively set the bit per
model with command buttons 3 and 6.
model with command buttons 3 and 6.
5.
Press commander buttons 8 and - (Test Normal) to return
to the data that was set on the shipment from the factory.
(This will also cancel Service Mode.)
Click on the first or last page to see other KV-XA25M93 service manuals if exist.