Sony KF-60DX100K Service Manual ▷ View online
– 36 –
KF-60DX100K
RM-Y910K
3-2.
CHASSIS PICTURE QUALITY ADJUSTMENT
3-2-1. White Level Adjustment
1. Preparation
1) Before adjustment, set the following adjustment conditions
in each mode.
Note: After the adjustment in 3-2-1. White Level Adjustment, restore
original data in each mode.
Adjustment conditions
Category
Item
Data
P-BOOST1
0
BSET
0
MCP-ADJ1
2
GDRV
50
3
GCUT
40
VID ADJ
1
GAM
0
2
DCTN
0
3
DPIC
0
2) Connect an oscilloscope to the CN702 pin 3 (TP743) on the
BB board.
2. RF Input Adjustment
1) Enter the RF color bar (75%) signal, and set the PICTURE
MODE to “Vivid”.
2) Set the adjustment conditions in 1. Preparation, and further
set the following data.
Adjustment conditions
Category
Item
Data
2103-1
22
ATPD
0
23
DCTR
0
2103-2
22
ATPD
0
23
DCTR
0
3) Press the [TWIN] button on the remote commander to display
color bar on the left and right two screens.
4) Measure the waveform, and adjust so that a difference
between black level and white level is 1.2 Vp-p
±
1 STEP.
Adjustment positions
Category
tem
Left screen
2103-1
2
SCON
Right screen
2103-2
2
SCON
5) After the adjustment finished, return the data set in 2) to
original values, and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
3. Video Input Adjustment
1) Enter the Video STEP (100%) signal (including 0IRE and
100IRE), and set the PICTURE MODE to “Vivid”.
2) Set the adjustment conditions in 1. Preparation, and further
set the following data.
Adjustment conditions
Category
Item
Data
2103-1
22
ATPD
0
23
DCTR
0
2103-2
22
ATPD
0
23
DCTR
0
3) Press the [TWIN] button on the remote commander to display
the STEP signal on the left and right two screens.
4) Measure the waveform, and adjust so that a difference
between black level and white level is 1.5 Vp-p
±
1 STEP.
Adjustment positions
Category
tem
Left screen
2103-1
2
SCON
Right screen
2103-2
2
SCON
1.2 Vp-p
5) After the adjustment finished, return the data set in 2) to
original values, and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
1.5 Vp-p
– 37 –
KF-60DX100K
RM-Y910K
4. Component Input Adjustment
1) Enter the Component 480i STEP (100%) signal (including
0IRE and 100IRE), and set the PICTURE MODE to
“Vivid”.
2) Set the adjustment conditions in 1. Preparation.
3) Measure the waveform, and adjust so that a difference
between black level and white level is 1.5 Vp-p
±
1 STEP.
Adjustment position
Category
Item
2103-1
2
YLEV
4) After the adjustment finished, return the data set in 2) to
original values, and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
5) Change over the PICTURE MODE to “Mild”, and perform
the steps 2) to 4).
3-2-2. Sub Color/Sub Hue Adjustment
1. Preparation
1) Before adjustment, set the following adjustment conditions
in each mode.
Note: After the adjustment in 3-2-2. Sub Color/Sub Hue Adjustment,
restore original data in each mode.
Adjustment conditions
PICTURE MODE: Vivid
Category
Item
Data
MCP-ADJ1
2
GDRV
50
3
GCUT
40
VID ADJ
1
GAM
0
2
DCTN
0
3
DPIC
0
USER STD
2
UCOL
31
3
UHUE
31
9
UCOF
31
10
UHOF
31
2) Connect an oscilloscope to the CN702 pin 1 (TP744) on the
BB board.
1.5 Vp-p
2. RF Input Adjustment
1) Enter the RF color bar (75%) signal.
2) Set the adjustment conditions in 1. Preparation, and further
set the following data.
Adjustment conditions
Category
Item
Data
P-BOOST1
0
BSET
0
2103-1
22
ATPD
0
23
DCTR
0
2103-2
22
ATPD
0
23
DCTR
0
3) Press the [TWIN] button on the remote commander to display
color bar on the left and right two screens.
4) Measure the waveform, and repeat the SCOL and SHUE
adjustments so that VB1 = VB4, and VB2 = VB3.
Adjustment positions
Category
tem
Left screen
2103-1
3
SCOL
4
SHUE
Right screen
2103-2
3
SCOL
4
SHUE
5) After the adjustment finished, return the data set in 2) to
original values, and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
GND
VB1
VB2 VB3
VB4
– 38 –
KF-60DX100K
RM-Y910K
3. Video Input Adjustment
1) Enter the Video color bar (100%) signal.
2) Set the adjustment conditions in 1. Preparation, and further
set the following data.
Adjustment conditions
Category
Item
Data
P-BOOST1
0
BSET
0
2103-1
22
ATPD
0
23
DCTR
0
2103-2
22
ATPD
0
23
DCTR
0
3) Press the [TWIN] button on the remote commander to display
color bar on the left and right two screens.
4) Measure the waveform, and repeat the SCOL and SHUE
adjustments so that VB1 = VB4, and VB2 = VB3.
Adjustment positions
Category
tem
Left screen
2103-1
3
SCOL
4
SHUE
Right screen
2103-2
3
SCOL
4
SHUE
5) After the adjustment finished, return the data set in 2) to
original values, and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
GND
VB1
VB2 VB3
VB4
4. Component Input Adjustment
1) Enter the Component 480i color bar (100%) signal.
2) Set the adjustment conditions in 1. Preparation, and further
set the following data.
Adjustment conditions
Category
Item
Data
P-BOOST1
0
BSET
0
2103-1
22
ATPD
0
23
DCTR
0
3) Measure the waveform, and repeat the SCOL and SHUE
adjustments so that VB1 = VB4, and VB2 = VB3.
Adjustment position
Category
Item
MCP ADJ2
0
SCOL
1
SHUE
4) After the adjustment finished, return the data set in 2) to
original values, and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
5) Enter the Component 1080i color bar (100%) signal.
6) Set the adjustment conditions in 1. Preparation, and perform
adjustment in step 3).
7) After the adjustment finished, return the data set in 6) to
original values, and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
8) Enter the Component 480p signal. Set same values as those
adjusted in 6) and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
9) Enter the Component 720p signal. Set same values as those
adjusted in 6) and write the data by pressing the “[MUTE] +
[ENTER] buttons on the remote commander.
GND
VB1
VB2 VB3
VB4
– 39 –
KF-60DX100K
RM-Y910K
3-2-3.
Hi-Level/Cut-Off Adjustment
1) Enter the Video window signal, and set the PICTURE
MODE to “Vivid”.
2) Connect an oscilloscope to the CN702 on the BB board.
Measurement positions
R
pin 5 (TP742)
G
pin 3 (TP743)
B
pin 1 (TP744)
3) For each output waveform of R, G, and B, repeat respective
adjustment items so as to attain H/L = 3.74 V
±
1 STEP and
C/O = 2.24 V
±
1 STEP.
Adjustment position
Category
Item
MCP ADJ1
0
RDRV
1
RCUT
2
GDRV
3
GCUT
4
BDRV
5
BCUT
4) After the adjustment finished, write the data by pressing the
[MUTE] + [ENTER] buttons on the remote commander.
5) Change over the PICTURE MODE to “Mild”, and perform
the steps 3) and 4).
6) Enter the Component 480i window signal, and change over
the PICTURE MODE to “Vivid”.
7) Perform the steps 3) to 5).
8) Enter the Component 1080i window signal, and change over
the PICTURE MODE to “Vivid”.
9) Perform the steps 3) and 4).
10) Enter the Component 480p signal. Set same values as those
adjusted in 9) and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
11) Enter the Component 720p signal. Set same values as those
adjusted in 9) and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
GND
H/L
C/O
3-3. VERTICAL STRIPE ADJUSTMENT
1. Set the following adjustment conditions, and display the test
pattern.
Adjustment conditions
Category
Item
Data
D-GM TEST
2
G-LUT SW
0
D-GM TPN
0
T-PATN SW
1
1
T-SIG SEL
0
2
PATN DIR
1
3
SIG LV DIR
0
5
B-LV
15
6
G-LV
15
7
R-LV
15
2. Set the test pattern to red color, and adjust the EVEN VR so
as to minimize vertical stripes (difference in brightness of
vertical lines every two dots).
Category
Item
Data
D-GM TPN
8
T-PATN RGB
1 (R)
LCD-DR
2
R ODD VR
ADJ*
LCD-DR
3
R EVEN VR
ADJ
*
: Fundamentally, this item is adjusted with the EVEN VR only, but if
the adjustment range is not enough, the ODD VR may also be
adjusted.
Test pattern color combination
DATA=
1
2
3
4
5
6
7
R
a
–
a
–
a
–
a
G
–
a
a
–
–
a
a
B
–
–
–
a
a
a
a
3. Adjust the green in the same manner.
Category
Item
Data
D-GM TPN
8
T-PATN RGB
2 (G)
LCD-DR
7
G ODD VR
ADJ*
LCD-DR
8
G EVEN VR
ADJ
*
: Fundamentally, this item is adjusted with the EVEN VR only, but if
the adjustment range is not enough, the ODD VR may also be
adjusted.
• Screen Magnify
Should be minimize bright
difference every two dots.
difference every two dots.
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