ADJUSTMENT PROCEDURE
Read and perform these
adjustments when repairing the circuits or replacing electrical parts or PCB
assemblies.
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 (YG6260M) 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).
BASIC ADJUSTMENTS: ON-SCREEN DISPLAY ADJUSTMENTS
- 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.
- Use the Channel UP/DOWN button or Channel button (0-9) on the remote control to select the options.
- Press the MENU button on the remote control to end the adjustments.
- To display the adjustment screen for AV mode, press the 0/AV button on the remote control to set to the AV mode. Press the VOL.DOWN button on the set and the channel (9) on the remote control for more than 2 seconds.
ADJUSTMENT ITEMS
H POSI OSD
V POSI OSD
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 50Hz
H POSI 60Hz
V POSI 50Hz
V POSI 60Hz
BRIGHT CENT
BRIGHT MAX
BRIGHT MIN
TINT
SHARP CENTER
SHARP MAX
|
SHARP MIN
CONTRAST CENTER
CONTRAST MAX
CONTRAST MIN
COLOR CENT
COLOR MAX
COLOR MIN
H POSI TEXT
V POSI TEXT
NT COLOR CENT
NT COLOR MAX
NT COLOR MIN
RGB BRIGHT CENT
RGB BRIGHT MAX
RGB BRIGHT MIN
RGB CONTRAT CENT
RGB CONTRAT MAX
RGB CONTRAT MIN
RGB COLOR CENT
RGB COLOR MAX
RGB COLOR MIN
RGB SHARP CENT
RGB SHARP MAX
RGB SHARP MIN
RGB V POSI 50Hz
RGB V POSI 60Hz
RGB H POSI 50Hz
RGB H POSI 60Hz
INVERSION
|
CONT CENTER
- Receive the Window Pattern .(RF Input)
- Activate the adjustment mode display and press the channel button (35) on the remote control to select "CONTRAST CENTER".
- Check if the step No. CONT CENT is "140".
- Receive a broadcast and check if the picture is normal.
- Press the 0/AV button on the remote control to set to the AV/COMPOSITE mode. Then perform the above adjustments 1~3.
- Receive a broadcast and check if the picture is normal.
- Receive a RGB signal. (Ex. By the DVD PLAYER, it's the RGB mode setting.)
- Activate the adjustment mode display and press the channel button (49) on the remote control to select "RGB CONTRAST CENT".
- Check if the step No. CONT CENT is "90".
- Receive a broadcast and check if the picture is normal.
WHITE BALANCE
- Place the set in Aging Test for more than 15 minutes.
- Receive the gray scale pattern from the Pattern Generator.
- Press the 0/AV 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 and press the channel button (03) on the remote control to select “R DRIVE”.
- Press the CH. UP/DOWN button on the remote control to select the “R CUTOFF”, “G.DRIVE”, “G CUTOFF”, “B.DRIVE” and “B CUTOFF”.
- Adjust the VOL. UP/DOWN button on the remote control to whiten the R CUTOFF, G.DRIVE, G CUTOFF, B.DRIVE and B CUTOFF at each step tone sections equally.
- Perform the above adjustments 5 and 6 until the white color is looked like a white.
H-OSD POSITION
- Receive the monoscope pattern from the Pattern Generator.
- Using the remote control, set the brightness and contrast to normal position.
- Activate the adjustment mode display and press the channel button (01) on the remote control to select "H POSI OSD".
- Press the LEFT/RIGHT button on the remote control until the difference of A and B becomes minimum.
BRIGHT CENT
- Receive the monoscope pattern. (RF Input) Set the screen mode to FULL.
- Using the remote control, set the brightness and contrast to normal position.
- Activate the adjustment mode display and press the channel button (28) on the remote control to select "BRI CENT".
- Press the VOL. UP/DOWN button on the remote control until the white 5.4% is starting to be visible
- Receive the monoscope pattern.
- Press the 0/AV button on the remote control to set to the AV/COMPOSITE mode. Then perform the above adjustments 2~5.
- Receive the monoscope pattern. (RGB signal)
- Activate the adjustment mode display and press the channel button (48) on the remote control to select "RGB BRIGTH CENT".
- Press the VOL. UP/DOWN button on the remote control until the white 5.4% is starting to be visible.
Check if the fixed values of
each the adjustment items are set correctly referring below.(RF/AV/AV RGB)
No
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
|
Function
H POSI OSD
V POSI OSD
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)
|
RF
90
100
122
131
128
128
115
135
119
132
128
128
122
133
131
129
128
128
116
133
|
AV
90
100
122
131
128
128
115
135
119
132
128
128
122
133
131
129
128
128
116
133
|
AV RGB
90
100
121
129
128
128
122
129
120
129
128
128
127
127
131
126
128
128
122
128
|
21
22
23
24
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
H POSI 50Hz
H POSI 60Hz
V POSI 50Hz
V POSI 60Hz
BRIGHT CENT
BRIGHT MAX
BRIGHT MIN
TINT
SHARP CENTER
SHARP MAX
SHARP MIN
CONTRAST CENTER
CONTRAST MAX
CONTRAST MIN
COLOR CENT
COLOR MAX
COLOR MIN
H POSI TEXT
V POSI TEXT
NT COLOR CENT
NT COLOR MAX
NT COLOR MIN
|
332
302
38
35
135
150
70
128
55
180
00
140
180
60
55
120
00
180
87
55
120
00
|
332
302
38
35
135
150
70
128
55
180
00
140
180
60
55
120
00
180
87
55
120
00
|
332
302
38
35
135
150
70
128
55
180
00
140
180
60
55
120
00
180
87
55
120
00
|
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
RGB BRIGHT CENT
RGB BRIGHT MAX
RGB BRIGHT MIN
RGB CONTRAT CENT
RGB CONTRAT MAX
RGB CONTRAT MIN
RGB COLOR CENT
RGB COLOR MAX
RGB COLOR MIN
RGB SHARP CENT
RGB SHARP MAX
RGB SHARP MIN
RGB V POSI 50Hz
RGB V POSI 60Hz
RGB H POSI 50Hz
RGB H POSI 60Hz
|
136
150
70
90
130
60
105
155
00
65
180
00
36
35
329
302
|