LG 42LG70YR (CHASSIS:LP81D) Service Manual ▷ View online
- 9 -
9. HDMI Input (PC-Spec. out but display correctly 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
720x400
31.468
70.08
28.32
2
640x480
31.469
59.94
25.17
VESA(VGA)
3
800x600
37.879
60.31
40.00
VESA(SVGA)
4
1024x768
48.363
60.00
65.00
VESA(XGA)
5
1360x768
47.72
59.799
84.62
VESA(WXGA)
6
1280x1024
63.595
60.0
108.875
SXGA
7
1400x1050
65.160
60.0
122.50
SXGA
8
1600x1200
74.077
60.0
130.375
UXGA
9
1920x1080
66.647
59.988
138.625
WUXGA
10. HDMI input ( DTV )
No.
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel clock(MHz)
Proposed
Remark
1
720*480
31.47
59.94
27
SDTV 480P
Support(not spec)
2
720*480
31.5
60
27.027
SDTV 480P
support(not spec)
3
720*576
31.25
50
27
SDTV 576P
support(not spec)
4
1280*720
44.96
59.94
74.176
HDTV 720P
5
1280*720
45
60
74.25
HDTV 720P
6
1280*720
37.5
50
74.25
HDTV 720P
7
1920*1080
28.125
50
74.25
HDTV 1080I
8
1920*1080
33.72
59.94
74.176
HDTV 1080I
9
1920*1080
33.75
60
74.25
HDTV 1080I
10
1920*1080
56.25
50
148.5
HDTV 1080P
11
1920*1080
67.432
59.94
148.350
HDTV 1080P
12
1920*1080
67.5
60.00
148.5
HDTV 1080P
13
1920*1080
27
24
74.25
HDTV 1080P
14
1920*1080
33.75
30
74.25
HDTV 1080P
- 10 -
ADJUSTMENT INSTRUCTION
1. Application Range
These instructions are applied to all of the LCD TV, LP81D
Chassis.
Chassis.
2. Notice
2.1 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.
isolation transformer will help protect test instrument.
2.2 Adjustment must be done in the correct order.
2.3 The adjustment must be performed in the circumstance of
2.3 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.
2.4 The input voltage of the receiver must keep 100~220V,
50/60Hz.
2.5 Before adjustment, execute Heat-Run for 30 minutes at
RF no signal.
3. Adjustment items
3.1 PCB assembly adjustment items
Download the MSTAR main software (IC801, Mstar ISP
Utility)
Utility)
3.2 SET assembly adjustment items
DDC Data input.
Adjustment of White Balance.
Factoring Option Data input
Adjustment of White Balance.
Factoring Option Data input
4. PCB assembly adjustment method
(Using MSTAR Download program)
4.1 S/W program download
4.1.1 Preliminary steps
(1) Download method 1 (PCB Assy)
(2) Connect the download jig to D-sub jack
(1) Download method 1 (PCB Assy)
(2) Connect the download jig to D-sub jack
4.1.2 Download steps
(1) Execute ‘ISP Tool’ program in PC, then a main window
(1) Execute ‘ISP Tool’ program in PC, then a main window
will be opened
(2) Click the connect button and confirm "Dialog Box".
(3) Click the Config button and Change speed
E2PROM Device setting : over the 350Khz
(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".
(5).Click "Auto(2)" tab and set as below
(6).click "Run(3)".
(7).After downloading, check "OK(4)" message.
(6).click "Run(3)".
(7).After downloading, check "OK(4)" message.
# USB DOWNLOAD
1. Put the USB Stick to the USB socket
1. Put the USB Stick to the USB socket
2. Automatically detecting update file in USB Stick
3. Select "Start" Button and press "ok" button
3. Select "Start" Button and press "ok" button
Updating is staring.
- 11 -
Double click
4. Finishing the version updating, you have to put out USB stick
and "AC Power" off
5. After putting "AC Power" on and check updated version on
your TV
4.2 ADC Process
O Required Equipments
- Remote controller for adjustment
- MSPG-925F Pattern Generator
- Remote controller for adjustment
- MSPG-925F Pattern Generator
4.2.1 Method of Auto RGB Color Balance
- Convert to RGB PC in Input-source
- Input the PC 1024x768 @ 60Hz 1/2 Black & White
- Convert to RGB PC in Input-source
- Input the PC 1024x768 @ 60Hz 1/2 Black & White
Pattern(MSPG-925F model:60, pattern:54) into RGB
- Adjust by commanding AUTO_COLOR_ADJUST(0xF1)
0x00 0x02 instruction.
4.2.1.1 Confirmation
- We confirm whether “0xF1 (offset), 0xF2 (gain)” address of
- We confirm whether “0xF1 (offset), 0xF2 (gain)” address of
EEPROM “0xBC” is “0xAA” or not.
- If “0xF1”, “0xF2” address of EEPROM “0xBC” isn’t “0xAA”,
we adjust once more
- We can confirm the ADC values from “0x00~0x05"
addresses in a page “0xBC”
* Manual ADC process using Service Remocon. After enter
Service Mode by pushing “ADJ” key, execute "Auto-RGB"
by pushing “
by pushing “
G
” key at “Auto-RGB".
4.2.2 Component input ADC
4.2.2.1 Component Gain/Offset Adjustment7
- Convert to Component in Input-source
- Input the Component (Which has 720p@60Hz YPbPr signal
4.2.2.1 Component Gain/Offset Adjustment7
- Convert to Component in Input-source
- Input the Component (Which has 720p@60Hz YPbPr signal
: 100% Color Bar (MSPG-925F Model : 217 / Pattern: 65)
into Component.
into Component.
- Adjust by commanding AUTO_COLOR_ADJUST (0xF1)
0x00 0x02 instruction
4.2.2.2 Confirmation
- We confirm whether "0xF3 (offset), 0xF4 (gain)" address of
- We confirm whether "0xF3 (offset), 0xF4 (gain)" address of
EEPROM "0xBC" is "0xAA" or not.
- If "0xF3", "0xF4" address of EEPROM "0xBC" isn’t "0xAA",
we adjust once more
- We can confirm the ADC values from "0x06~0x0B"
addresses in a page "0xBC"
*Manual ADC process using Service Remocon. After enter
Service Mode by pushing "ADJ" key, execute "Auto-RGB"
by pushing "
by pushing "
G
" key at "Auto-RGB".
** After Tool Option/ Area Option
change, you have to AC power off
Before PCBA check, you have to change
the Tool option, Area option and have to
AC off/on (Plug out and in)
(In missing this process, set can operate
abnormally)
the Tool option, Area option and have to
AC off/on (Plug out and in)
(In missing this process, set can operate
abnormally)
- 12 -
Click on the first or last page to see other 42LG70YR (CHASSIS:LP81D) service manuals if exist.