LG 19LS4D (CHASSIS:LD83A) Service Manual ▷ View online
- 8 -
7. RGB Input (PC)
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remarks
1
720*400
31.468
70.08
28.321
For only DOS mode
2
640*480
31.469
59.94
25.17
VESA
Input 848*480 60Hz, 852*480 60Hz
37.684
75.00
31.50
-> 640*480 60Hz Display
3
800*600
37.879
60.31
40.00
VESA
46.875
75.00
49.50
4
832*624
49.725
74.55
57.283
Macintosh
5
1024*768
48.363
60.00
65.00
VESA(XGA)
56.470
70.00
75.00
60.123
75.029
78.75
6
1280*768
47.78
59.87
79.5
WXGA
7
1360*768
47.72
59.8
84.75
WXGA
8
1366*768
47.56
59.6
84.75
WXGA
9
1440*900
55.5
59.90
88.750
WXGA
19LS4D-ZD only
10
1400*1050
64.744
59.948
101.00
WSXGA
22LS4D-ZD only
11
1680*1050
65.16
59.94
147.00
WSXGA
22LS4D-ZD only
12
1280*1024
63.595
60.0
108.875
SXGA
13
1920*1080
66.647
59.988
138.625
WUXGA
FHD Model only
6. Component Video Input (Y, P
B
, P
R
)
No
Specification
Remark
Resolution
H-freq(kHz)
V-freq(Hz)
1
720*480
15.73
60.00
SDTV, DVD 480i
2
720*480
15.63
59.94
SDTV, DVD 480i
3
720*480
31.47
59.94
480p
4
720*480
31.50
60.00
480p
5
720*576
15.625
50.00
SDTV, DVD 625 Line
6
720*576
31.25
50.00
HDTV 576p
7
1280*720
45.00
50.00
HDTV 720p
8
1280*720
44.96
59.94
HDTV 720p
9
1280*720
45.00
60.00
HDTV 720p
10
1920*1080
31.25
50.00
HDTV 1080i
11
1920*1080
33.75
60.00
HDTV 1080i
12
1920*1080
33.72
59.94
HDTV 1080i
13
1920*1080
56.250
50
HDTV 1080p
14
1920*1080
67.5
60
HDTV 1080p
- 9 -
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
1
720*400
31.468
70.08
28.321
HDCP
2
640*480
31.469
59.94
25.17
VESA
HDCP
37.684
75.00
31.50
3
800*600
37.879
60.31
40.00
VESA
HDCP
46.875
75.00
49.50
4
832*624
49.725
74.55
57.283
Macintosh
HDCP
5
1024*768
48.363
60.00
65.00
VESA(XGA)
HDCP
56.470
70.00
75.00
60.123
75.029
78.75
6
1280*768
47.78
59.87
79.5
WXGA
HDCP
7
1360*768
47.72
59.8
84.75
WXGA
HDCP
8
1366*768
47.56
59.6
84.75
WXGA
HDCP
9
1440*900
55.5
59.90
88.750
WXGA
19LS4D-ZD only
10
1400*1050
64.744
59.948
101.00
WSXGA
22LS4D-ZD only
11
1680*1050
65.16
59.94
147.00
WSXGA
22LS4D-ZD only
12
1280*1024
63.595
60.0
108.875
SXGA
HDCP
13
1920*1080
66.647
59.988
138.625
WUXGA
FHD Model only
9. HDMI PC
8. HDMI DTV
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
1
720*480
15.734 / 15.6
59.94 / 60
27.00
SDTV 480I
2
720*480
31.469 / 31.5
59.94 / 60
27.00/27.03
SDTV 480P
3
720*576
15.625
50
27(54)
SDTV 576I
4
720*576
31.25
50
54
SDTV 576P
5
1280*720
37.500
50
74.25
HDTV 720P
6
1280*720
44.96 / 45
59.94 / 60
74.17/74.25
HDTV 720P
7
1920*1080
33.72 / 33.75
59.94 / 60
74.17/74.25
HDTV 1080I
8
1920*1080
28.125
50.00
74.25
HDTV 1080I
9
1920*1080
26.97 / 27
23.97 / 24
74.17/74.25
HDTV 1080P
10
1920*1080
33.716 / 33.75
29.976 / 30.00
74.25
HDTV 1080P
11
1920*1080
56.250
50
148.5
HDTV 1080P
12
1920*1080
67.43 / 67.5
59.94 / 60
148.35/148.50
HDTV 1080P
- 10 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LCD TV with
LD83A chassis.
LD83A chassis.
2. Designation
(1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan which can be changed only on agreeing.
plan which can be changed only on agreeing.
(2) Power Adjustment: Free Voltage
(3) Magnetic Field Condition: Nil.
(4) Input signal Unit: Product Specification Standard
(5) Reserve after operation: Above 5 Minutes (Heat Run)
(3) Magnetic Field Condition: Nil.
(4) Input signal Unit: Product Specification Standard
(5) Reserve after operation: Above 5 Minutes (Heat Run)
Temperature : at 25±5ºC
Relative humidity : 65±10%
Input voltage : 220V, 60Hz
Relative humidity : 65±10%
Input voltage : 220V, 60Hz
(6) Adjustment equipments: Color Analyzer (CA-210 or CA-
110), Pattern Generator (MSPG-925L or Equivalent), DDC
Adjustment Jig equipment, SVC remote controller
Adjustment Jig equipment, SVC remote controller
(7) Push the “IN STOP KEY” - For memory initialization
Case 1 : Software version up
1) After downloading S/W by USB, TV set will reboot
automatically
2) Push “In-stop” key
3) Push “Power on” key
4) Function inspection
5) After function inspection, Push “In-stop” key.
3) Push “Power on” key
4) Function inspection
5) After function inspection, Push “In-stop” key.
Case2 : Function check at the assembly line
1) When TV set is entering on the assembly line, Push
“In-stop” key at first.
2) Push “Power on” key for turning it on.
-> If you push “Power on” key, TV set will recover
channel information by itself.
3) After function inspection, Push “In-stop” key.
3. Main PCB check process
* APC - After Manual-Insult, executing APC
* Download
1) Execute ISP program “Mstar ISP Utility” and then click
“Config” tab.
2) Set as below, and then click “Auto Detect” and check “OK”
message. If display “Error”, Check connect computer, jig,
and set.
and set.
3) Click “Connect” tab. If display “Can’t”, Check connect
computer, jig, and set.
4) Click “Read” tab, and then load download file(XXXX.bin) by
clicking “Read”.
5) Click “Auto” tab and set as below
6) Click “Run”.
7) After downloading, check “OK” message.
6) Click “Run”.
7) After downloading, check “OK” message.
* USB DOWNLOAD
1) Put the USB Stick to the USB socket
2) Automatically detecting update file in USB Stick
2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is Low,
it didn’t work. But your downloaded version is High, USB
data is automatically detecting
data is automatically detecting
3) Show the message “Copying files from memory”
4) Updating is staring.
5) Updating Completed, The TV will restart automatically.
6) If your TV is turned on, check your updated version and
5) Updating Completed, The TV will restart automatically.
6) If your TV is turned on, check your updated version and
Tool option. (explain the Tool option, next stage)
* If downloading version is more high than your TV have,
TV can lost all channel data. In this case, you have to
channel recover. if all channel data is cleared, you didn’t
have a DTV/ATV test on production line.
channel recover. if all channel data is cleared, you didn’t
have a DTV/ATV test on production line.
(1)
(3)
(2)
OK
Please Check Speed :
To us speed between from 200 KHz
to 400 KHz
To us speed between from 200 KHz
to 400 KHz
(4)
filexxx.bin
(5)
(7) ........ OK
(6)
filexxx.bin
- 11 -
* After downloading, have to adjust TOOL OPTION again.
1) Push "IN-START" key in service remote controller
2) Select "Tool Option 1" and Push “OK” button
3) Punch in the number. (Each model has their number.)
3) Completed selecting Tool option
2) Select "Tool Option 1" and Push “OK” button
3) Punch in the number. (Each model has their number.)
3) Completed selecting Tool option
3.1. ADC Process
(1) PC input ADC
1) Auto RGB Gain/Offset Adjustment
- Convert to PC in Input-source
- Signal equipment displays
- Signal equipment displays
Output Voltage : 700 mVp-p
Impress Resolution XGA (1024 x 768 @ 60Hz)
Model : 60 in Pattern Generator
Pattern : 65 in Pattern Generator (MSPG-925 Series)
Impress Resolution XGA (1024 x 768 @ 60Hz)
Model : 60 in Pattern Generator
Pattern : 65 in Pattern Generator (MSPG-925 Series)
- Adjust by commanding AUTO_COLOR_ADJUST.
2) Confirmation
- We confirm whether “0xAA(RGB)” address of
EEPROM “0xA2” is “0xAA” or not.
- If “0xAA(RGB)” address of EEPROM “0xA2” isn’t
“0xAA”, we adjust once more
- We can confirm the ADC values from “0xA4~0xA9
(RGB)” addresses in a page “0xA2”
* Manual ADC process using Service Remote control.
After enter Service Mode by pushing “ADJ” key,
execute “ADC Adjust” by pushing “
execute “ADC Adjust” by pushing “
G
” key at “ADC
CALIBRATION: RGB-PC”.
(2) COMPONENT input ADC
1) Component Gain/Offset Adjustment
- Convert to Component in Input-source
- Signal equipment displays
- Signal equipment displays
Impress Resolution 480i
MODEL : 209 in Pattern Generator(480i Mode)
Pattern : 65 in Pattern Generator (MSPG-925 series)
MODEL : 209 in Pattern Generator(480i Mode)
Pattern : 65 in Pattern Generator (MSPG-925 series)
Impress Resolution 1080i
Model : 223 in Pattern Generator(1080i Mode)
Pattern: 65 in Pattern Generator(MSPG-925 series)
Model : 223 in Pattern Generator(1080i Mode)
Pattern: 65 in Pattern Generator(MSPG-925 series)
- Adjust by commanding AUTO_COLOR_ADJUST.
2) Confirmation
- We confirm whether “0xB3 (480i)/0xBC (1080i)”
address of EEPROM “0xA2” is “0xAA” or not.
- If “0xB3 (480i)/0xBC(1080i)” address of EEPROM
“0xA2” isn’t “0xAA”, we adjust once more.
- We can confirm the ADC values from “0xAD~0xB2
(480i)/0xB6~BB (1080i)” addresses in a page “0xA2”.
* Manual ADC process using Service Remote control.
After enter Service Mode by pushing “ADJ” key,
execute “ADC Adjust” by pushing “
execute “ADC Adjust” by pushing “
G
” key at “ADC
CALIBRATION : COMPONENT”.
Impress Resolution 480i
Impress Resolution 1080i
3.2. Function Check
(1) Check display and sound
- Check Input and Signal items. (cf. work instructions)
1) TV
2) AV (SCART1/SCART2/S-VHS/CVBS)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI
6) PC Audio In
* Display and Sound check is executed by Remote
2) AV (SCART1/SCART2/S-VHS/CVBS)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI
6) PC Audio In
* Display and Sound check is executed by Remote
controller.
<Fig. 1> Adjustment pattern(PC)
<Fig. 2> Adjustment pattern(COMPONENT)
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