Sony KV-XA29K90 Service Manual ▷ View online
– 37 –
KV-XA29K90
RM-914
5-3. PICTURE QUALITY ADJUSTMENTS
SUB COLOR ADJUSTMENT
1. Select Video.
2. Input a NTSC color-bar.
3. Set to the following condition:
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].
[3] and [6].
6. Press [MUTING]
n [0] of the commander to write the
data.
7. Select the ‘Wide’ mode, write the ‘same data-3 steps’ for
both PAL and NTSC input.
VB2 = VB3 = VB4 (Difference is within 70mV)
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
setting to Service Mode and adjust to
VB1=VB2=VB3=VB4 with [3] and [6].
VB1=VB2=VB3=VB4 with [3] and [6].
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.
6. Press [MUTING]
n [0] 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
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
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]
6. Press [MUTING]
n [0] 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. Select Video mode.
2. Using the [1] and [4] button, select category GEO
2. Using the [1] and [4] button, select category GEO
(Service Mode).
3. Raise/lower the data using the [3] and [6] buttons.
Select and adjust the following items to obtain optimum
image.
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 [4] button, select category GEO
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 (50Hz)) adjusted data for
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.
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.
10. Repeat same steps for NTSC input signal.
VB1
VB2
VB3
VB4
VB1 = VB2 = VB3 = VB4
VB1
VB2
VB3
VB4
VB2 = VB3 = VB4
– 38 –
KV-XA29K90
RM-914
NORMAL MODE (60Hz)
1. Set to Service Mode.
2. Using the [1] and [4] buttons select category GEO
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.
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)
4. Input monoscope signal.
5. Adjust condition change to WIDE MODE: ON.
6. Using the [1] and [4] button select category GEO
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 SIZE
05
VSZ
V SIZE
06
SCO
S CORRECTION
07
VLN
V LINEARITY
8. 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
9. After confirm WIDE MODE : ON – OFF.
Note:
For Deflection Adjustment, set PICTURE MODE to
"SOFT".
"SOFT".
5-6. H-TRAPEZOID ADJUSTMENT
1. Receive cross hatch/dot signal.
2. Adjust RV1801 on C6 board to make H-Trapezoid
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 [0] (Data Initialize), and
2. Press commander buttons [5] and [0] (Data Initialize), and
[2] and [0] (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] + [0]).
In cases where items are not well adjusted, rectify the fine
adjustment.
Write the data per each item number ([MUTING] + [0]).
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].
bit per model with command buttons [3] and [6].
5. Press commander buttons [8] and [0] (Test Normal) to
return to the data that was set on the shipment from the
factory.
(This will also cancel Service Mode.)
factory.
(This will also cancel Service Mode.)
– 39 –
KV-XA29K90
RM-914
5-8. PICTURE DISTORTION ADJUSTMENT
Item Number 00 – 0B
GEO 1
HSZ (H SIZE)
GEO 3
TLT (TRAPEZIUM)
GEO 0A UPN (UPPER CORNER PIN)
GEO 0B LPN (LOWER CORNER PIN)
GEO 5
VSZ (V SIZE)
GEO 0
HPS (H POSITION)
GEO 9
AGL (AFC.ANGLE)
GEO 8
BOW (AFC.BOW)
GEO 2
PAP (PIN AMP)
GEO 4
VPS (V POSITION)
GEO 7
VLN (V LINEARITY)
GEO 6
SCO (VERTICAL S-Correction)
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