Deflection Adjustment - LG RT-44NZ21RB Service Manual

2. Adjustment
1) Operate adjustment about Red,Green,Blue centering
magnet.
2) SGS-THOMSON Convergence assy
Adjust until the center of blue signal is shifted up to 30mm
left from that of green signal and center of red signal is
shifted up to 30mm right from that of green signal with
turning the centering magnet.
3) After adjustment, re-adjust convergence data and exit the
adjusting mode.
a.Adjustment mode:Press the SVC key and then press the
/M key.
b.Data reset : Press 0 KEY and then OK key.
c.Adjustment mode cancellation : Press the /M key.
High Voltage Regulation Adjustment
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1. Test Equipment
Digital Multi-Meter(DMM)
2. Preparation for Adjustment.
Select picture mode to ÔDYNAMICÕ in no signal input.
3. Adjustment
1) Connect Ò+Ó terminal(Red) of DMM to the P416A of the
Deflection PCB, [+] and the Ò-Ó terminal(Black) to the
P416B,[-].
2) Adjust VR401 so that the voltage of multimeter to be below
voltage.
Model except for German model: 21.6 ! 0.1V.
German Model: 20.5!0.1V.
CUT-OFF Adjustment
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1.Preliminary steps
1) Adjustment must be operated in a dark room(simple dark
room).
2) Turn the screen volume to the left so that the screen voltage
to be MIN. (Entering the horizontal mode when the screen
voltage is high may occur the horizontal burning of PRT.)
2.Adjustment.
1) Press the ÒSVCÓkey and then press the
remote controller for adjustment to display horizontal line.
(Even though it enter into the Adjustment mode,the
horizontal line might not be seen according to the position of
Screen Volume.)
2) Adjust Screen Volume (R/G/B) in Focus Pack until brightness
of red/blue/green horizontal line is hardly seen.
(At the moment,brightness of red,blue or green horizontal
line should be equal to one another.)
3) Exit the adjustment mode by pressing the

Deflection Adjustment

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1. Preliminary steps
1) NTSC mode should be adjusted after adjusting PAL mode.
2) NTSC adjustment should be done in STANDARD mode of
picture after receiving 13CH signal or MULTI 48CH
signal,and PAL adjustment should be done in STANDARD
mode of picture after receiving EU05 CH.
3) Reset the data in convergence adjustment mode,quit the
mode.
4) Display only the Green raster using lens covers to block Red
and Blue.
2. PAL Mode Deflection adjustment
Do not adjust VS ,HS ,VL ,A-ANG ,A-BOW ,SC ,V-ASP
in PAL MODE. At SVC mode,press the YELLOW key get into
the deflection adjustment mode.
1) VS (Vertical Shift)
Adjust until the geometric vertical center line is accord with
the vertical center line of screen JIG in EU 05 CH by
pressing the VOLUME
2) VA (Vertical Amplitude)
Adjust until fifth vertical line from upper and lower center of
the screen is accord with the last point of the frame.
3) HS (Horizontal Shift)
Adjust until the geometric horizontal center line is accord with
the horizontal center line of screen JIG.
4) EW (East-west Width)
Adjust until the outermost left and right vertical line of the
screen is accord with the last point of the frame.
5) EP (East-west Parabola)
Adjust so that middle portion of the outermost left and right
vertical line looks like parallel with vertical lines of the PRT.
6) ET(East-west Trapezium)
Adjust to make the width of top horizontal line same with it of
the bottom horizontal line.
key. on the
7) A-ANG(AFC Angle)
Vertical slope adjustment
key.
8) A-BOW(AFC BOW)
Vertical get bending adjustment
9) U-C(Upper Corner Pincushion)
Upper part pin cushion adjustment
10) L-C(Lower Corner Pincushion)
Lower part pin cushion adjustment
11) U-VL(Upper Vertical Linearity)
Adjust vertical linearity of upper screen
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Adjustment Mode : Press the ÒSVCÓ key and then /M key.
Data reset : Press the Ò5Ó key and then OK key.
Adjustment mode cancellation :Press the /M key.
F G
,
Fifth Vertical Line
key .