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Purity Adjustment; White Balance Adjustment; Convergence Adjustment; Screen Voltage Adjustment - LG 29FS2RMB-TP Service Manual

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7-1. Purity adjustment

1) Degauss the CPT and CABINET enough.
2) Receive red RASTER signal.(PG50ch)
3) Remove fixing screw of DY and stick DY to opening part(CPT
FUNNEL part)
4) Make crossing adjustment to the Magnet of CPT and make
the R-land is placed on center correctly. At this moment, 4
pole and 6 pole magnet should be at the position of no
magnetic field.
5) Move DY and make whole screen to be equal red, and fix the
DY with fixing SCREW after checking color pollution in each
single color and white RASTER of green/blue/red.(At this
time, be careful about inclination and DY should be fixed
keeping horizontality.)
6) Check the receiver in direction of East, West, South, North.
Adjust with supporting MAGNET when adjustment is not
operated.

7-2. Convergence adjustment

This adjustment should be operated at the best condition of
FOCUS after finishing the PURITY adjustment.
1) BACK RASTER receives black CROSS HATCH signal.
2) Adjust Brightness so that there are 9-12 dots.
3) Widen two tabs of 4pole Magnet with equal angles and
accord red, blue vertical lines at the center of screen.
4) With keeping angle of "3. clause", rotate tab and accord
red/blue, green vertical lines at the center of screen.
5) Widen two tabs of 6pole Magnet with equal angles and
accord red, blue vertical lines at the center of screen.
6) With keeping angle of "5. clause", repeat the adjustment from
"3. clause" to "5. clause" keeping in mind the movement of
red, blue, green when the horizontal lines are twisted.
7) Move DY up, down, left, right and make the convergence to
be optimal condition and stick rubber wedge to CPT so that
the DY not to move.

8. Screen voltage Adjustment

8-1. Preliminary steps
1) Turn the power supply of the TV set on.
2) The set must be operated for about 15 minutes prior to the
adjustment.
8-2. Adjustment
1) Adjust in the condition of no RF signal or after recieving the
PAL-B/G 05ch(Digital pattern)
2) Press ADJ key on the Remote controller to make horizontal
line.
Turn the Screen Volume not to see one horizontal line and
turn oppositely until it starts to display.

9. White balance Adjustment

This adjustment should be performed after screen voltage
adjustment.
For manual adjustment, refer to the following procedure
9-1. Test equipment
1) Automatic White Balance Meter(Low/High Light Pattern)
- Automatic adjustment
2) White Balance Meter(CRT Color Analyzer, CA-100) : 1 set
3) Remote controller for adjustment
9-2. Preliminary steps
1) Tune the TV set to receive an 100% white pattern.
2) This adjustment should be performed after screen voltage
adjustment.
9-3. Adjustment
1) White Balance should be adjusted with White balance meter
and the remote controller.
2) Press the IN-START key to enter the adjustment mode,
search for RGB W-B mode with CH
VOL key.
3) Select the ajustment item with CH
4) Adjust the data with Press VOL
5) Adjustment procedure
a. Adjust the "CONTRAST" and "BRIGHT" so the bright level
to be 3.5 Ft_L.
b. Adjust "Y" value of High Light with GD(G-Drive) and adjust
"X" value with BD(B-Drive) and make color coordinates of
High Light which is specified in "clause f".
c. Adjust the "CONTRAST" and "BRIGHT" so the bright level
to be 4.5 Ft_L.
d. Adjust "Y" value of Low Light with GC(G-Cutoff) and
adjust "X" value with BC(B-Cutoff) and make color
coordinates of Low Light which is specified in "clause f".
e. Repeat a~d until the High/ Low color coordinates satisfies
the table of "claud f"
f. Check the adjusted color coordinates with white balance
meter.
Color Temperature.
13000K
MENU
RD(0~3F)
GD(0~3F)
RGB
BD(0~3F)
W-B
RC(0~3F)
GC(0~3F)
BC(0~3F)
D
E
,
, and select with
D
E
,
key.
F
G
,
key.
X coordinate
Y coordinate
266 ± 8
273 ± 8
29"
Remark
29
For High Light adjustment
28
2C
1F
For Low Light adjustment
22
B0

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