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ELECTRICAL ADJUSTMENTS
D-1
23HLV84
Fig. 1-2
NO.
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
FUNCTION
GCUT W
BCUT W
DRI1 W
DRI2 W
MD6 W
DTHON W
DRREF W
RCUT2 W
GCUT2 W
BCUT2 W
GAINR W
GAING W
GAINB W
BRI CEN
BRI MAX
BRI MIN
CON CEN
CON MAX
CON MIN
COL CEN
COL MAX
COL MIN
TIN CEN
TIN MAX
TIN MIN
SHA CEN
SHA MAX
SHA MIN
NO
.
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
FUNCTION
RCUT M
GCUT M
BCUT M
DRI1 M
DRI2 M
MD6 M
DTHON M
DRREF M
RCUT2 M
GCUT2 M
BCUT2 M
GAINR M
GAING M
GAINB M
RCUT C
GCUT C
BCUT C
DRI1 C
DRI2 C
MD6 C
DTHON C
DRREF C
RCUT2 C
GCUT2 C
BCUT2 C
GAINR C
GAING C
GAINB C
RCUT W
1.
Read and perform these adjustments when repairing the
circuits or replacing electrical parts or PCB assemblies.
CAUTION
•
•
•
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 for a heat sink,
apply the 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).
BEFORE MAKING ELECTRICAL
ADJUSTMENTS
Prepare the following measurement tools for electrical
adjustments.
1. Oscilloscope
2. AC Voltmeter
3. Pattern Generator
4. Multi-Sound Signal Generator
On-Screen Display Adjustment
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 second
to appear the adjustment mode on the screen as shown
in Fig. 1-1.
1.
2.
Fig. 1-1
Use the Channel UP/DOWN button or Channel button
(1-0) on the remote control to select the options shown
in Fig. 1-2.
And, press the VOL. DOWN button on the set and the
Channel button (9) on the remote control for more than 2
second to appear the adjustment mode on the screen as
shown in Fig. 1-3.
Use the Channel UP/DOWN button or Channel button
(1-0) on the remote control to select the options shown
in Fig. 1-4.
Press the MENU button on the remote control to end the
adjustments.
To display the adjustment screen for AV, CS and HD-MI
mode, press the INPUT button on the remote control.
And, to display the adjustment screen for DVD mode,
press the TV/DVD 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 second.
3.
4.
5.
6.
7.
07 RCUT M
15
Function
Step No.
TV
480i
TH-3
Fig. 1-3
NO.
01
05
15
16
17
58
59
FUNCTION
OSD
G OFFSET
BACK LIGHT CENT
BACK LIGHT MAX
BACK LIGHT MIN
TEST STEREO
TEST AUDIO
Fig. 1-4
01 OSD H 9