Adjustment Instructions - LG RE-29FA31PX Service Manual

Safety Precautions
V
1. It is safe to adjust after using insulating transformer between
the power supply line and chassis input to prevent the risk of
electric shock and protect the instrument.
2. Never disconnect leads while the TV receiver is on.
3. Don't short any portion of circuits while power is on.
4. The adjustment must be done by the correct appliances.
5. Unless otherwise noted, set the line voltage to 230Vac!10%,
50Hz.
5. The adjustment of TVshould be performed after warming up
for 15 minutes.
Test Equipment required
V
1. RF signal generator (with pattern generator)
2. DC Power Supply
3. Multimeter (volt meter)
4. Oscilloscope
5. Color analyzer
Focus Adjustment
O
Test Point : Observing Display
Adjust : Focus control of FBT
1) Tune the TV set to receive a digital pattern.
2) Adjust the lower Focus volume of FBT for the best focus of
vertical line B.
3) Adjust the upper Focus volume of FBT for the best focus of
area A.
4) Repeat above step 2) and 3) for the best overall focus.
A
Screen Voltage Adjustment
O
1) Turn the TV set on.
2) This adjustment should be performed after warming up for
more than 15 minutes.
3) Enter the SVC mode by pressing the SVC button on remote
controller and by pressing the H-LINE button.
4)If "OK" appear more than 2 on the screen turning screen
volume,press the "OK" button.

ADJUSTMENT INSTRUCTIONS

Fig. 1
b
White Balance Adjustment
O
NOTE : This adjustment should be performed after screen
voltage adjustment.
1) Tune the TV set to receive an 100% white pattern.
2) Press Channel UP/DOWN button for desirous function
Adjustment.
3) Press Volume UP/DOWN button to adjust the data.
4) Adjust until "CONTRAST" and "BRIGHT" become 3.5 Ft_L
5) Enter the SVC mode by pressing the SVC button.
6) Adjust the Y value of High Light with R-DRIVE and adjust the
X value with B-DRIVE until they have the color coordinate of
High Light as below.
7) Adjust until "CONTRAST" and "BRIGHT" become 4.5 Ft_L
8) Enter the adjustment mode by pressing the SVC button.
9) Adjust the Y value of Low Light with R-CUTOFF and adjust
the X value with B-CUTOFF until they have the color
coordinate of Low Light as below.
10) Repeat adjusting until the color coordinate of High and Low
Light is satisfied.
11) Check the adjusted color coordinate with a white balance
meter.
Color Tem.
13000K
10000K
Menu
CR
CG
CB
WR
B
WG
WB
Deflection Data Adjustment
O
1) Deflection Data Adjustment should be performed with the
remote controller for handset.
2) Enter the SVC mode by pressing the SVC button.
3) Enter the Deflection Adjustment mode by pressing the
ADJUST button.
4) Press the Channel UP/DOWN button to select adjustment
items.
5) Press the Volume UP/DOWN button to adjust the data.
6) The TV set receives PAL-B/G Digital pattern.
VL (Vertical Linearity)
Adjust so that the boundary line between upper and lower half
is in accord with geometric horizontal center of the CPT.
- 9 -
X
Y
266 !8 273 !8
282 !8 288 !8
LG 29" FLAT LG 32" FLAT
0080
0080
0080
019B
019B
019B
Memo
NON EU
EU
MENO
Low Light Adj
Low Light Adj
Low Light Adj
High Light Adj
High Light Adj
High Light Adj