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.
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 MENU button on the remote control to end
the adjustments.
To display the adjustment screen for TV, AV,
COMPONENT and HDMI mode, press the INPUT
SELECT button on the remote control.
Press the VOL.DOWN button on the set and the
channel (9) on the remote control for more than 2
seconds.
FUNCTION
H POSI OSD
V POSI OSD
R DRIVE (N)
R CUTOFF (N)
G DRIVE (N)
G CUTOFF (N)
B DRIVE (N)
B CUTOFF (N)
R DRIVE (C)
R CUTOFF (C)
G DRIVE (C)
G CUTOFF (C)
B DRIVE (C)
B CUTOFF (C)
R DRIVE (W)
R CUTOFF (W)
G DRIVE (W)
G CUTOFF (W)
B DRIVE (W)
B CUTOFF (W)
H POSI 50Hz
H POSI 60Hz
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
35
36
37
38
39
40
41
42
43
44
45
46
47
FUNCTION
V POSI 50Hz
V POSI 60Hz
BAK LIGHT CENT
BAK LIGHT MAX
BAK LIGHT MIN
BRIGHT CENT
BRIGHT MAX
BRIGHT MIN
TINT
CONTRAST CENTER
CONTRAST MAX
CONTRAST MIN
COLOR CENT
COLOR MAX
COLOR MIN
H POSI TEXT
V POSI TEXT
CONTRAST 35
BRIGHT (3F54)
CONTRAST (3F55)
SRCTOP
DFEA VIMGVT
Prepare the following measurement tools for electrical
adjustments.
1. Pattern Generator
Fig. 2-2
TV
01 H POSI OSD
AUTO
346
2-1: CONTRAST MAX
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
Receive the monoscope pattern. (VIDEO Input)
Press the INPUT SELECT button on the remote control
to set to the AV mode.
Press the PICTURE SIZE button on the remote control
to select the FULL screen 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 (36) on the remote control to
select "CONT MAX".
Check if the step No. CONT MAX is "131".
Receive a broadcast and check if the picture is normal.
Receive the monoscope pattern. (RF Input)
Press the INPUT SELECT button on the remote control
to set to the TV mode. Then perform the above
adjustments 3~5.
Check if the step No. CONT MAX is "179".
Playback the DVD(480i) disc. (COMPONENT Input)
Press the INPUT SELECT button on the remote control
to set to the COMPONENT mode. Then perform the
above adjustments 3~5.
Check if the step No. CONT MAX is "161".
Playback the DVD(480i) disc. (HDMI Input)
Press the INPUT SELECT button on the remote control
to set to the HDMI mode. Then perform the above
adjustments 3~5.
Check if the step No. CONT MAX is "164".
