LG RE-44NA13RB Service Manual page 14

Centering Magnet Adjustment
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1. Preliminary steps
1) Receive the EU 05 CH signal.(PR.1 : PAL B/G 175.25MHZ)
2) Press the keys of Remote Controller for adjustment to reset the
convergence.
a.Adjustment mode:Press the IN-START key.
b.Data reset : Press 0 KEY.
c.Adjustment mode cancellation : Press the ENTER key.
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 40mm
left from that of green signal and center of red signal is
shifted up to 40mm 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 IN_START key.
b.Data reset : Press 0 KEY.
c.Adjustment mode cancellation : Press the Enter key.
High Voltage Regulation Adjustment
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1. Test Equipment
Digital Multi-Meter(DMM)
2. Preparation for Adjustment.
Select picture mode to 'DYNAMIC' in no signal input.
3. Adjustment
1) Press the IN_START key and then press '1' key.(HV ADS)
2) Connect "+" terminal(Red) of DMM to the P415 of the
Deflection PCB, [+] and the "-"terminal(Black) to the P416,[-].
3) Adjust VR401 so that the voltage of multimeter to be below
voltage.
Voltage : 21.7 ! 0.1V.
4) Exit the adjustment mode by pressing the enter key
CUT-OFF Voltage Adjustment
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1. Preliminary steps
(1) Select INSTART key on the Remote Control and then select
"2 SCREEN ADJ" move the cursor or using the key No..
(2) Adjustment must be operated in a dark room (simple dark
room)
2 Pole Magnet
4 Pole Magnet
6 Pole Magnet
2. Adjustment
1) Test Equipment: Oscilloscope, 100:1 Probe
2) Connect oscilloscope to cathode of R, G, B(R926R/B/G:
SCREEN ADJ on the PCB) and GND.
3) Turning Screen Volume (R/G/B) in Focus Pack and adjust
R/G/B is 165V!0.5V.
4) After adjustment complete, exit the RASTER adjustment
mode using ENTER key and exit the SVC adjustment mode
using INSTART key.
Vertical period
0V
Deflection Adjustment
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1. Preliminary steps
1) NTSC mode should be adjusted after adjusting PAL mode.
2) PAL adjustment should be done in the EU CH05,and NTSC
adjustment should be done in the CH13 or Multi 48CH.
Note, RE/RL Model(without NTSC-M system) receive CH13
in the V-3 input.
3) Press the button of Remote Controller for adjustment to reset
the convergence
Adjustment Mode : Press the IN_START key
Data reset : Press the 0 key.
Saving and returning Adjustment mode : Press the ENTER
Key
Note. Refer adjustment items to Appendix1.
2. PAL Mode Deflection adjustment
Do not adjust H-POS,V-POS, V-LIN, S-COR, A-BOW, A-ANG,
UCPIN, LCPIN, V-ASP,V-SCR in PAL mode.
Select the below each mode using CH
F G
VOL , on the remote controller.
At SVC mode, press the '0' key get into the deflection
adjustment mode.
1) H-POS (Horizontal Position Adjustment)
Adjust so that the horizontal center line of screen is in accord
with the geometric horizontal center line of screen JIG.
2) V-POS (Vertical Position Adjustment)
Adjust so that the vertical center line of picture is in accord
with the vertical center line of the screen.
3) HSIZE (Horizontal SIZE Adjustment)
Adjust so that the outermost left and right vertical line of the
screen is accord with the last point of the frame
4) VSIZE (Vertical SIZE Adjustment)
Adjust until Sixth vertical center line from upper and lower
center of the picture is accord with the last point of the frame.
5) U-VL (Upper Vertical Linearity Adjustment)
Adjust the vertical interval of screen upper.
6) L-VL (Lower Vertical Linearity Adjustment)
Adjust the vertical interval of screen lower.
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165V±0.5V
D E
, and adjust using