Adjustment Instruction - LG RT-15LA60 Service Manual

1. Application Object
This instruction is for the application to the LCD TV.
2. Notes
(1) This set uses an adapter, so connect the adapter and the
set correctly before adjustment.
(2) The adjustment must be performed under the correct
sequence.
(3) The adjustment must be performed in the circumstance of
25!5cC of temperature and 65!10% of relative humidity, if
there is no specific designation.
(4) The input voltage of the receiver must keep 100~220V,
50/60Hz in adjusting.
(5) The set must be operated for 30 minutes preliminarily
before adjusting, if there is no specific designation.
[ ÔHeat RunÕ must be performed with the full white signal or TV
noise signal in the internal part of the set.
[ The time for ÔHeat RunÕ can be changed owing to production
plan.
3. PC Input Mode Adjustment
3-1. Required Test Equipment
(1) A pattern generator being in proportion to 801GF(or
VG819) ; Pattern of 16(11) tones
(2) A SVC remote controller
3-2. Preparation for Adjustment
(1) Perform ÔHeat RunÕ for more than 20 minutes in the white
pattern.
(2) Connect the signal from a pattern generator to the LCD
TVÕs PC Input Jack(D-Sub).
(3) Apply the gray signal of XGA(1024X768) 16 tones by
using 801GF or VG819.
(4) In SVC menu mode,press the INSTART key(or SVC key)
and adjust the Auto gay from 0 to 1 by using Vol(+) button.
4. Component input mode adjustment
4-1. Required Test Equipment
(1) A pattern generator being in proportion to MSPG925LTH
(or 801F,SETTOP box)
(2) Adjustment Remote controller (SVC Remocon)
4-2. Preparation for Adjustment
(1) Perfome ÔHeat-runÕ for more than 20 minutes in White
Pattern.
(2) Connect the signal from a pattern generator to the LCD
TVÕs component Input Jack.
4-3. YP P Adjustment
b r
(1) Apply the DTV 1080i,color bar pattern by using

ADJUSTMENT INSTRUCTION

- 9 -
MSPG925LTH. Or apply DTV 1080i color bar pattern of
Pattern generator.
(2) In SVC menu mode,operate YP
Volume + button.
5. Location adjustment of each mode
VGA- VGA-
VGA-
Mode
67 72
60
H_total 800 864 832
H_display 640 640 656
H_blanking 160 224 176
H-sync 96 64 40
H_polarity NEG NEG NEG
H_bp 48 96 120
H_fp 16 64 16
H-freq[kHz] 31.469 35.0 37.861
/Clk[MHz] 25.175 30.24 31.5
V_total 525 525 520
V-display 480 480 496
V_blanking 45 45 24
V-sync 2 3 3
V_polarity NEG NEG NEG
V_bp 33 39 20
V_fp 10 3 1
SVGA XGA-
SVGA
Mode
-85 60
-75
H_total 1056 1048 1344
H_display 800 800 1024
H_blanking 256 248 320
H-sync 80 64 136
H_polarity POS POS NEG
H_bp 160 152 136
H_fp 16 32 160
H-freq[kHz] 46.875 53.674 48.363
/Clk[MHz] 49.5 56.25 65.0
V_total 625 631 806
V-display 600 600 768
V_blanking 25 31 38
V-sync 3 3 6
V_polarity POS POS NEG
V_bp 21 27 29
V_fp 1 1 3
(1)Display the 19 Mode and check the screen.
P adjustment by using
b r
VGA- VGA- SVGA SVGA
75 85 -56 -60
840 832 1024 1056
640 640 800 800
200 192 224 256
64 56 72 128
NEG NEG POS POS
120 80 128 88
16 56 24 40
37.5 43.269 35.156 37.879
31.5 36.0 36.0 40.0
500 509 625 628
480 480 600 600
20 29 25 28
3 3 2 4
NEG NEG POS POS
16 25 22 23
1 1 1 1
* H[dot]/ V[line]
XGA- XGA- MAC- XGA-
70 75 75 85
1328 1312 1152 1376
1024 1024 832 1024
304 288 320 352
136 96 64 96
POS NEG POS
144 176 224 208
24 16 32 48
56.476 60.023 49.725 68.677
75.0 78.75 57.283 84.997
806 800 667 808
768 768 624 768
38 32 43 40
6 3 3 3
NEG POS NEG POS
29 28 39 36
3 1 1 1
SVGA
-72
1040
800
240
120
POS
64
56
48.077
50.0
666
600
66
6
POS
23
37