Sony KV-29LS60B Service Manual ▷ View online
- 17 -
GREEN
BLUE
RED
(1) Screen centre convergence [Static convergence]
1.
Input a dot pattern signal from the pattern generator.
2.
Normalize the picture setting.
3.
[Moving vertically], adjust the V.STAT magnet so that the
vertical red, green and blue dots coincide at the centre of the
screen.
vertical red, green and blue dots coincide at the centre of the
screen.
3-2. Convergence
By opening or closing the V.STAT magnet, the red green and
blue dots move in the direction indicated below.
blue dots move in the direction indicated below.
Note:
Do not adjust the H.STAT by rotating the V.STAT
magnets as this can affect the focus setting.
magnets as this can affect the focus setting.
B
G
R
B
G
R
Fig.3-5
Purity magnets
Align pips on
each magnet
each magnet
Fig.3-4
Align both Purity
magnets to the vertical
position
magnets to the vertical
position
Purity control corrects
this area
this area
Disk magnets or
rotatable disk
magnets correct
these areas (a-d)
rotatable disk
magnets correct
these areas (a-d)
Deflection yoke positioning
corrects these areas
corrects these areas
a
c
d
b
Disk Magnets
Center dot
R
G
B
R
G
B
C Board
RV7375 (H STAT)
H STAT Convergence
(on mount side)
H STAT Convergence
(on mount side)
H STAT
convergence
control
V.STAT Vertical Static Magnet
Purity control magnets
- 18 -
4.
Correction for HMC [Horizontal mis-convergence] and VMC
[Vertical mis-convergence] by using the BMC [Hexapole]
magnet.
[Vertical mis-convergence] by using the BMC [Hexapole]
magnet.
a). HMC correction by BMC [Hexapole] magnet and movement of
the electron beam.
b). VMC correction by BMC [Hexapole] magnet and movement of
the electron beam.
Adjust the HAMP using HAMPL and HAMPR registers in the
Dynamic Convergence section of the service menu.
Dynamic Convergence section of the service menu.
HTIL correction can be performed by adding a THL correction
assembly to the Deflection yoke.
assembly to the Deflection yoke.
C < D
C = D
C > D
C = D
R
G
G
B
C
D
C
D
R
G
B
R
G
B
R
G
B
V M C c o r r e c t i o n ( A )
V M C c o r r e c t i o n ( B )
THL Correction assy
HAMP Adjustment
HTIL Adjustment
YCH Adjustment
H M C c o r r e c t i o n ( A )
H M C c o r r e c t i o n ( B )
A < B
A = B
R G
B
R G B
A > B
A = B
R
G B
R G B
TLV Adjustment
H-TRAP Adjustment
The H-TRAP should not be adjusted unless absolutely necessary as it
affects the TLV settings.
affects the TLV settings.
+
+
+
YCH VR
Deflection Yoke
+
+
+
TLV VR
Deflection Yoke
HTRAP VR
+
+
+
Deflection Yoke
- 19 -
3-3. Focus Adjustment
1.
Receive a television broadcast signal.
2.
Normalize the picture setting.
3.
Adjust the focus control located on the flyback transformer to
obtain the best focus at the centre of the screen.
Bring only the centre area of the screen into focus, the magenta-
ring appears on the screen. In this case, adjust the focus to
optimize the screen uniformly.
obtain the best focus at the centre of the screen.
Bring only the centre area of the screen into focus, the magenta-
ring appears on the screen. In this case, adjust the focus to
optimize the screen uniformly.
3-4. Screen (G2), White Balance
[Adjustment in the service mode using the remote
commander]
commander]
G2 adjustment
1.
Input a dot signal from the pattern generator.
2.
Set the Picture, Brightness and Colour to minimum.
3.
Apply 165V DC from an external power supply to the R, G
and B cathodes of the CRT.
and B cathodes of the CRT.
4.
Whilst watching the picture, adjust the G2 control [SCREEN]
located on the flyback transformer to the point just before the
flyback return lines disappear.
located on the flyback transformer to the point just before the
flyback return lines disappear.
Layout of each control
Note : If you are unable to adjust the corner convergence properly,
this can be corrected with the use of permalloy magnets.
1.
Input an all-white signal from the pattern generator.
2.
Program the Remote Commander for operation in Service Mode.
[ See Page 20 ].
[ See Page 20 ].
3.
Enter into the ‘Service Mode’ by pressing ‘VIDEO’ button twice
and ‘MENU’ on the Service Commander.
and ‘MENU’ on the Service Commander.
4.
Select ‘Service’ from the on screen menu display and press
‘Right Arrow’.
‘Right Arrow’.
5.
The ‘Service’ menu will appear on the screen.[See Page 21]
6.
Set the ‘Contrast’ to MAX.
7.
Set the ‘R-Drive’ to 50.
8.
Adjust the ‘G-Drive’ and the ‘B-Drive’ so that the white
balance becomes optimum.
balance becomes optimum.
9.
Press the ‘OK’ button to write the data for each item.
10. Set the ‘Contrast’ to MIN.
11. Set the ‘R-Cutoff’ to 29.
12. Adjust the ‘G-Cutoff’, and the ‘B-Cutoff’ with the left and
11. Set the ‘R-Cutoff’ to 29.
12. Adjust the ‘G-Cutoff’, and the ‘B-Cutoff’ with the left and
right buttons on the remote commander so that the white
balance becomes optimum.
balance becomes optimum.
13. Press the ‘OK’ button to write the data for each item.
White balance adjustment for TV mode
Y-splitting axis correction magnet
V STAT convergence magnet
BMC (Hexaploe) magnet
Purity magnet
a-d: screen-corner
convergence defect
convergence defect
a
b
c
d
a
b
d
Permalloy Assy
X-4387-214-1
X-4387-214-1
c
Install the permalloy assembly
for the area that needs correcting.
for the area that needs correcting.
Convergence adjustment with permalloy
Focus
Screen
- 20 -
4-1. Electrical Adjustments
Service adjustments to this model can be performed using the
supplied remote Commander RM-932.
supplied remote Commander RM-932.
SECTION 4 CIRCUIT ADJUSTMENTS
3.
Press 99999. All three LED’s should light.
The remote commander is now set to Service Mode.
The remote commander is now set to Service Mode.
4.
To return the remote commander to normal operation mode
repeat steps 1. and 2. then press 00000. All three LED’s
should light.
The remote commander is now set to normal mode.
repeat steps 1. and 2. then press 00000. All three LED’s
should light.
The remote commander is now set to normal mode.
Programming the Remote Commander for
Operation in Service Mode
Operation in Service Mode
Setting the TV into Service Mode
1.
Program the remote commander for operation in Service
Mode as described above.
Mode as described above.
2.
Turn on the TV main power switch.
3.
Press the video standby button
on the remote
commander twice.
‘TT ’ will appear in the upper right corner of the screen.
Other status information will also be displayed.
‘TT ’ will appear in the upper right corner of the screen.
Other status information will also be displayed.
4.
Press ‘MENU’ on the remote commander to obtain the
following menu on the screen.
5.
Move to the corresponding adjustment item using the
up or down arrow buttons on the Remote Commander.
up or down arrow buttons on the Remote Commander.
6.
Press the right arrow button to enter into the required menu item.
7.
Press the ‘Menu’ button on the Remote Commander to quit the
Service Mode when all adjustments have been completed.
Service Mode when all adjustments have been completed.
Note :
After carrying out the service adjustments, to prevent the
customer accessing the ‘Service Menu’ switch the TV set
OFF and then ON.
OFF and then ON.
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9
1
1.
Press the VCR/TV/DVD button until the
TV LED lights.
TV LED lights.
2.
Press and hold the yellow button for
approx. 5 seconds until the TV LED
flashes quickly.
approx. 5 seconds until the TV LED
flashes quickly.
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