ELECTRICAL ADJUSTMENTS
D-1
1. ADJUSTMENT PROCEDURE
Read and perform these adjustments when repairing the
circuits or replacing electrical parts or PCB assemblies.
CAUTION
On-Screen Display Adjustment
1.
2.
Set the VOLUME to minimum.
Press the VOL. DOWN button on the set and the
channel button (9) on the remote control for more than
2 seconds to display adjustment mode on the screen as
shown in Fig. 2-1.
Fig. 2-1
3.
4.
5.
6.
Use the UP/DOWN button or Channel button (0-9) on
the remote control to select the options shown in
Fig. 2-2.
Press the ANALOG MENU button on the remote control
to end the adjustments.
To display the adjustment screen for TUNER, AV,
COMPONENT, HDMI and PC mode, press the INPUT
SELECT button on the remote control to set to the
TUNER, AV, HDMI and PC mode.
Press the VOL.DOWN button on the set and the
channel (9) on the remote control for more than 2
seconds.
FUNCTION
OSD H POSI
OSD V POSI
R DRIVE (N)
R CUT OFF (N)
G DRIVE (N)
G CUT OFF (N)
B DRIVE (N)
B CUT OFF (N)
R DRIVE (C)
R CUT OFF (C)
G DRIVE (C)
G CUT OFF (C)
B DRIVE (C)
B CUT OFF (C)
R DRIVE (W)
R CUT OFF (W)
G DRIVE (W)
G CUT OFF (W)
B DRIVE (W)
B CUT OFF (W)
H POSI
H POSI MAX
NO.
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
•
•
•
Use an isolation transformer when performing any
service on this chassis.
When removing a PCB or related component, after
unfastening or changing a wire, be sure to put the wire
back in its original position.
When you exchange IC and Transistor with a heat sink,
apply silicon grease on the contact section of the heat
sink. Before applying new silicon grease, remove all the
old silicon grease. (Old grease may cause damage to the
IC and Transistor).
2. BASIC ADJUSTMENTS
NO.
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
FUNCTION
H POSI MIN
V POSI
V POSI MAX
V POSI MIN
BACKLIGHT CENTER
BACKLIGHT MAX
BACKLIGHT MIN
BRIGHT CENTER
BRIGHT MAX
BRIGHT MIN
TINT CENTER
CONTRAST CENTER
CONTRAST MAX
CONTRAST MIN
CONTRAST 40
COLOR CENTER
COLOR MAX
COLOR MIN
TEXT H POIS
TEXT V POIS
FLICKER ADJ
Prepare the following measurement tools for electrical
adjustments.
1. Pattern Generator
Fig. 2-2
TUNER
01 OSD H POSI
16:9
21
2-1: WHITE BALANCE
1.
2.
3.
4.
5.
6.
7.
8.
Place the set in Aging Test for more than 15 minutes.
Receive the gray scale pattern from the Pattern
Generator.
Press the INPUT SELECT button on the remote control
to set to the AV mode.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of Fig. 2-1 and
press the channel button (03) on the remote control to
select "R DRIVE (N)".
Press the CH. UP/DOWN button on the remote control to
select the "R CUT OFF(N)", "G DRIVE(N)", "G CUT
OFF(N)", "B DRIVE(N)", "B CUT OFF(N)", "R DRIVE(C)",
"R CUT OFF(C)", "G DRIVE(C)", "G CUT OFF(C)", "B
DRIVE(C)", "B CUT OFF(C)", "R DRIVE(W)", "R CUT
OFF(W)", "G DRIVE(W)", "G CUT OFF(W)", "B
DRIVE(W)" or "B CUT OFF(W)".
Adjust the VOL. UP/DOWN button on the remote control
to whiten the R CUT OFF(N), G DRIVE(N), G CUT
OFF(N), B DRIVE(N), B CUT OFF(N), R DRIVE(C), R
CUT OFF(C)", G DRIVE(C), G CUT OFF(C), B
DRIVE(C), B CUT OFF(C), R DRIVE(W), R CUT
OFF(W), G DRIVE(W), G CUT OFF(W), B DRIVE(W)
and B CUT OFF(W) at each step tone sections equally.
Perform the above adjustments 6 and 7 until the white
color is achieved.
PAL
