LG 22LH20R (CHASSIS:LP91A) Service Manual ▷ View online
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No
Specification
Remark
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel Clock(MHz)
1 640*
350
31.468
70.09
25.17 EGA
2 720*
400
31.469
70.09
28.32 DOS
3
640* 480
31.469
59.94
25.17
VESA( VGA)
4 800*
600
37.879
60.317
40
VESA(
SVGA)
5
1024* 768
48.363
60.004
65
VESA( XGA)
6
1280* 768
47.776
59.87
79.5
VESA( WXGA)
7
1360* 768
47.72
59.799
84.75
VESA( WXGA)
8
1280* 1024
63.668
59.895
109.00
XGA
Only FHD Model
9
1920* 1080
66.587
59.934
138.50
WUXGA(Reduced Blanking)
Only FHD Model
9. RGB
9.1 Analog PC, RGB- DTV –NOT SUPPORT
10. HDMI Input
10.1 PC –Spec. out but it can be shown the picture at only HDMI/ DVI IN 1 via DVI to HDMI Cable)
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
1
640 x 480
31.469
59.94
25.17
VESA( VGA)
2
800 x 600
37.879
60.317
40.00
VESA( SVGA)
3
1024 x 768
48.363
60.004
65.00
VESA( XGA)
4
1280 x 768
47.776
59.87
79.5
VESA( WXGA)
5
1360 x 768
47.72
59.799
84.62
VESA( WXGA)
6
1366 x 768
47.7
60.00
84.62
WXGA
7
1280 x 1024
63.595
60.00
108.875
SXGA
8
1920 x 1080
66.647
59.988
138.625
WUXGA
10.2 DTV Mode
No
Specification
Remark
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel Clock(MHz)
1
720 x 480
15.73
59.94
13.500
SDTV, DVD 480I(525I)
2
720 x 480
15.75
60.00
13.514
SDTV, DVD 480I(525I)
Spec. out
3
720 x 576
15.625
50.00
13.500
SDTV, DVD 576I(625I) 50Hz
but display.
4
720 x 480
31.47
59.94
27
SDTV 480P
5
720 x 480
31.5
60.00
27.027
SDTV 480P
6
720 x 576
31.25
50.00
27
SDTV 576P
7
1280 x 720
44.96
59.94
74.176
HDTV 720P
8
1280 x 720
45
60.00
74.25
HDTV 720P
9
1280 x 720
37.5
50.00
74.25
HDTV 720P
10
1920 x 1080
28.125
50.00
74.25
HDTV 1080I
11
1920 x 1080
33.72
59.94
74.176
HDTV 1080I
12
1920 x 1080
33.75
60.00
74.25
HDTV 1080I
13
1920 x 1080
56.25
50.00
148.5
HDTV 1080P
14
1920 x 1080
67.432
59.94
148.350
HDTV 1080P
15
1920 x 1080
67.5
60.00
148.5
HDTV 1080P
16
1920 x 1080
27
24.00
74.25
HDTV 1080P
17
1920 x 1080
33.75
30.00
74.25
HDTV 1080P
1) Gap between Front Frame /Back cover and Middle Cabinet
2) Gap between Front Frame /Middle Cabinet
2) Gap between Front Frame /Middle Cabinet
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Top View
Back Cover
Front Frame
Middle Cabinet
"b
"b
Gap b between Front Frame (Back cover) and Middle Cabinet
-> 0 † b † B (Side gap)
Gap a between Front Frame and Middle Cabine
-> 0 † a † A (Side gap)
"b
"a
Gap a between Front Frame and Middle Cabine
-> 0 † a † A (Left/ Right gap)
3) Gap between Back Cover and Side AV
Back View
Side View
Side AV
Back Cover
Gap f between Back Cover and Side AV
-> 0 † f † 1.0
Gap g between Back Cover and Side AV
-> 0 † g † 1.0
-> 0 † f † 1.0
Gap g between Back Cover and Side AV
-> 0 † g † 1.0
11. Mechical spec.
No Item
Min
Typ
Max
Unit
1.
C/ A + B/ C top gap
0.5
1
1.5
mm
2.
C/ A + B/ C side gap
0.5
1
1.5
mm
3.
C/ A + Deco Front gap( ONE SIDE).
0.8
1
1.2
mm
*Active area
1. Active area of LCD PANEL is in bezel of cabinet
2. Interval between active area and bezel
2. Interval between active area and bezel
|A-B|< 2.0 mm ,|C-D|< 2.0 mm
A:Interval between left of active area and bezel
B:Interval between right of active area and bezel
C:Interval between top of active area and bezel
D:Interval between bottom of active area and beze
A:Interval between left of active area and bezel
B:Interval between right of active area and bezel
C:Interval between top of active area and bezel
D:Interval between bottom of active area and beze
4)Gap between Back Cover and Side AV
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Side View
"h"
Control Braket
Back Cover
Gap h between Back Cover and Control Bracket
-> 0 † h † 0.8
-> 0 † h † 0.8
C
B
D
A
Active Area
Bezel
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ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LCD TV,
LP91A/B/C/D chassis.
LP91A/B/C/D chassis.
2. Specification
1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test instrument.
transformer will help protect test instrument.
2) Adjustment must be done in the correct order.
3) The adjustment must be performed in the circumstance of
3) The adjustment must be performed in the circumstance of
25 ±5 °C of temperature and 65±10% of relative humidity if
there is no specific designation.
there is no specific designation.
4) The input voltage of the receiver must keep 100~220V,
50/60Hz.
5) Before adjustment, execute Heat-Run for 5 minutes at RF
no signal.
3. Adjustment items
3.1. PCB assembly adjustment items
(1) Download the MSTAR main software
(IC800, Mstar ISP Utility)
1) Using D/L Jig
2) Using USB Memory Stick.
1) Using D/L Jig
2) Using USB Memory Stick.
(2) ADC Calibration – RGB / Component
(3) Input Tool-Option/Area option.
(4) Check SW Version.
(3) Input Tool-Option/Area option.
(4) Check SW Version.
4. PCB assembly adjustment method
4.1. Mstar Main S/W program download
4.1.1. Using D/L Jig
(1) Preliminary steps
1) Connect the download jig to D-sub(RGB) jack
(2) Download steps
1) Execute ‘ISP Tool’ program, the main window(Mstar ISP
utility Vx.x.x) will be opened
2) Click the “Connect” button and confirm “Dialog Box”
3) Click the “Config.” button and Change speed I2C Speed
setting : 350Khz~400Khz
4) Read and write bin file.
Click “(1)Read” tab, and then load download
file(XXXX.bin) by clicking “Read”.
file(XXXX.bin) by clicking “Read”.
- LH20/ LH30
1
Filexxx.bin
1
Filexxx.bin
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