LG 37LD650H (CHASSIS:LD03Z) Service Manual ▷ View online
- 5 -
5. Module optical specification
1) Standard Test Condition (The unit has been ‘ON’)
2) Stable for approximately 45 minutes in a dark environment at 25 ºC.
3) The values specified are at approximate distance 50 cm from the LCD surface.
4) Ta= 25 ºC ± 2 ºC, VLCD= 12.0 V, fV= 60 Hz, Dclk=74.25 MHz, VBR_A= 1.65 V, ExtVBR_B= 100%
2) Stable for approximately 45 minutes in a dark environment at 25 ºC.
3) The values specified are at approximate distance 50 cm from the LCD surface.
4) Ta= 25 ºC ± 2 ºC, VLCD= 12.0 V, fV= 60 Hz, Dclk=74.25 MHz, VBR_A= 1.65 V, ExtVBR_B= 100%
No.
Item Specification
Min.
Typ.
Max.
Remark
1.
Viewing Angle<CR>10>
Right/Left/Up/Down
89/89/89/89
CR > 10
2.
Luminance Luminance
(cd/m
2
)
360
450
Variation 1.3
MAX
/MIN
3.
Contrast Ratio
CR
4000
5000
All white/ All black
4.
CIE Color Coordinates
White
Wx
0.280
Wy 0.290
RED
Rx
0.640
Ry
Typ.
0.330
Typ.
Green Gx
-0.03
0.290
+0.03
Gy
0.600
Blue Bx
0.144
By
0.060
6. Component Video Input (Y, C
B
/P
B
, C
R
/P
R
)
No.
Specification
Remark
Resolution
H-freq(kHz)
V-freq(Hz)
1.
720x480 15.73
60.00
SDTV,DVD
480i
2.
720x480 15.63
59.94
SDTV,DVD
480i
3.
720x480
31.47
59.94 480p
4.
720x480
31.50
60.00 480p
5.
720x576
15.625
50.00
SDTV,DVD 625 Line
6.
720x576 31.25
50.00
HDTV
576p
7.
1280x720
45.00
50.00 HDTV
720p
8.
1280x720
44.96
59.94 HDTV
720p
9.
1280x720 45.00
60.00
HDTV
720p
10.
1920x1080 31.25
50.00
HDTV
1080i
11.
1920x1080
33.75
60.00 HDTV
1080i
12.
1920x1080 33.72
59.94
HDTV
1080i
13.
1920x1080 56.250
50
HDTV
1080p
14.
1920x1080
67.5 60 HDTV
1080p
- 6 -
No.
Specification
Proposed
Remarks
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel Clock(MHz)
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 60 Hz, 852*480 60 Hz
-> 640*480 60 Hz Display
3.
800*600
37.879
60.31
40.00 VESA
4.
1024*768 48.363 60.00
65.00 VESA(XGA)
5.
1280*768 47.78 59.87
79.5
WXGA
6.
1360*768 47.72
59.8
84.75
WXGA
7.
1280*1024 63.595 60.0
108.875
SXGA
FHD
model
8.
1920*1080 66.587
59.93
138.625 WUXGA
FHD
model
7. RGB (PC)
8. HDMI Input
(1) DTV Mode
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
3. 800*600
37.879
60.31
40.00
VESA
HDCP
4.
1024*768
48.363
60.00 65.00
VESA(XGA)
HDCP
5.
1280*768 47.78
59.87
79.5
WXGA HDCP
6.
1360*768 47.72 59.8 84.75
WXGA HDCP
7.
1280*1024 63.595
60.0 108.875 SXGA
HDCP/FHD
model
8.
1920*1080 67.5
60.00
138.625 WUXGA
HDCP/FHD
model
(2) PC Mode
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
1.
720*480
31.469 /31.5
59.94 /60
27.00/27.03
SDTV 480P
2.
720*576 31.25
50
54
SDTV
576P
3.
1280*720 37.500
50
74.25
HDTV
720P
4.
1280*720
44.96 /45
59.94 /60
74.17/74.25
HDTV 720P
5.
1920*1080
33.72 /33.75
59.94 /60
74.17/74.25
HDTV 1080I
6.
1920*1080 28.125 50.00
74.25
HDTV
1080I
7.
1920*1080
26.97 /27
23.97 /24
74.17/74.25
HDTV 1080P
8.
1920*1080
33.716 /33.75
29.976 /30.00
74.25
HDTV 1080P
9.
1920*1080 56.250 50
148.5
HDTV
1080P
10.
1920*1080
67.43 /67.5
59.94 /60
148.35/148.50
HDTV 1080P
- 7 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LCD TV with
LD03Z chassis.
LD03Z chassis.
2. Designation
(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 ºC ± 5 ºC of temperature and 65 % ±10 % of relative
humidity if there is no specific designation.
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep AC 100-240
V~ 50 / 60Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15.
15.
In case of keeping module is in the circumstance of 0 °C, it
should be placed in the circumstance of above 15 °C for 2
hours
should be placed in the circumstance of above 15 °C for 2
hours
In case of keeping module is in the circumstance of below -
20 °C, it should be placed in the circumstance of above 15
°C for 3 hours.
20 °C, it should be placed in the circumstance of above 15
°C for 3 hours.
[Caution]
When still image is displayed for a period of 20 minutes or
longer (especially where W/B scale is strong. Digital pattern
13ch and/or Cross hatch pattern 09ch), there can some
afterimage in the black level area.
When still image is displayed for a period of 20 minutes or
longer (especially where W/B scale is strong. Digital pattern
13ch and/or Cross hatch pattern 09ch), there can some
afterimage in the black level area.
3. Automatic Adjustment
3.1. ADC Adjustment
(1) Overview
ADC adjustment is needed to find the optimum black level
and gain in Analog-to-Digital device and to compensate
RGB deviation.
and gain in Analog-to-Digital device and to compensate
RGB deviation.
(2) Equipment & Condition
1) Jig (RS-232C protocol)
2) MSPG-925 Series Pattern Generator(MSPG-925FA,
2) MSPG-925 Series Pattern Generator(MSPG-925FA,
pattern - 65)
- Resolution : 480i Comp1
1080p Comp1
1080p RGB
1080p RGB
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7 ± 0.1 Vp-p
- Image
- Pattern level : 0.7 ± 0.1 Vp-p
- Image
(3) Adjustment
1) Adjustment method
- Using RS-232, adjust items in the other shown in
“3.1.(3).3)”
2) Adj. protocol
Ref.) ADC Adj. RS232C Protocol_Ver1.0
3) Adj. order
- aa 00 00 [Enter ADC adj. mode]
- xb 00 40 [Change input source to Component1(No action)]
- ad 00 10 [Adjust 480i Comp1]
- ad 00 10 [Adjust 1080p Comp1]
- xb 00 60 [Change input source to RGB(No action)]
- ad 00 10 [Adjust 1080p RGB]
- ad 00 90 End adj.
- xb 00 40 [Change input source to Component1(No action)]
- ad 00 10 [Adjust 480i Comp1]
- ad 00 10 [Adjust 1080p Comp1]
- xb 00 60 [Change input source to RGB(No action)]
- ad 00 10 [Adjust 1080p RGB]
- ad 00 90 End adj.
3.2. MAC Address
(1) Equipment & Condition
- Play file: Serial.exe
- MAC Address edit
- Input Start / End MAC address
- MAC Address edit
- Input Start / End MAC address
(2) Download method
1) Communication Prot connection
Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port
PCBA
PC(RS-232C)
RS-232C Po rt
Protocol
Command
Set ACK
Enter adj. mode
aa 00 00
a 00 OK00x
Source change
xb 00 40
b 00 OK40x (Adjust 480i, 1080p Comp1 )
xb 00 60
b 00 OK60x (Adjust 1920*1080 RGB)
Begin adj.
ad 00 10
Return adj. result
OKx (Case of Success)
NGx (Case of Fail)
Read adj. data
(main)
(main : component1 480i, RGB 1080p)
ad 00 20
000000000000000000000000007c007b006dx
(main)
(main : component1 1080p)
ad 00 30
000000070000000000000000007c00830077x
Confirm adj.
ad 00 99
NG 03 00x (Fail)
NG 03 01x (Fail)
NG 03 02x (Fail)
OK 03 03x (Success)
End adj.
aa 00 90
a 00 OK90x
- 8 -
2) MAC Address Download
- Com 1,2,3,4 and 115200(Baud rate)
- Port connection button click(1)
- Port connection button click(1)
- Load button click(2) for MAC Address write.
- Start MAC Address write button(3)
- Check the OK Or NG
- Start MAC Address write button(3)
- Check the OK Or NG
3.3. LAN
(1) Equipment & Condition
A
Each other connection to LAN Port of IP Hub and Jig
(2) LAN inspection solution
A
LAN Port connection with PCB
A
Network setting at MENU Mode of Installation Menu
- “In-start” key input -> “menu” key input -> Installation
Menu
- Network Setup -> Network Setting --> Press “Enter” ->
IP Auto Setting -> OK
A
setting automatic IP
A
Setting state confirmation
-> If automatic setting is finished, you confirm IP and
MAC Address.
3.4. LAN PORT INSPECTION(PING TEST)
Connect SET -> LAN port == PC -> LAN Port
(1) Equipment setting
1) Play the LAN Port Test PROGRAM.
2) Input IP set up for an inspection to Test
2) Input IP set up for an inspection to Test
Program.
*IP Number : 12.12.2.2
*IP Number : 12.12.2.2
(2) LAN PORT inspection (PING TEST)
1) Play the LAN Port Test Program.
2) Connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) Remove LAN CABLE
2) Connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) Remove LAN CABLE
3.5. Model name & serial number download
(1) Model name & Serial number D/L
A
Press “Power on” key of service remocon.(Baud rate :
115200 bps)
115200 bps)
A
Connect RS232 Signal Cable to RS-232 Jack.
A
Write Serial number by use RS-232.
A
Must check the serial number at Instart menu.
(2) Method & notice
A. Serial number D/L is using of scan equipment.
B. Setting of scan equipment operated by Manufacturing
B. Setting of scan equipment operated by Manufacturing
Technology Group.
C.Serial number D/L must be conformed when it is
produced in production line, because serial number D/L
is mandatory by D-book 4.0.
is mandatory by D-book 4.0.
* Manual Download (Model Name and Serial Number)
If the TV set is downloaded by OTA or service man,
sometimes model name or serial number is initialized.(Not
always)
There is impossible to download by bar code scan, so It
need Manual download.
a. Press the ‘instart’ key of ADJ remote control.
b. Go to the menu ‘5.Model Number D/L’ like below photo.
c. Input the Factory model name(ex 42LD450-ZA) or Serial
sometimes model name or serial number is initialized.(Not
always)
There is impossible to download by bar code scan, so It
need Manual download.
a. Press the ‘instart’ key of ADJ remote control.
b. Go to the menu ‘5.Model Number D/L’ like below photo.
c. Input the Factory model name(ex 42LD450-ZA) or Serial
number like photo.
d. Check the model name Instart menu ‡ Factory name
displayed (ex 42LE7500-ZA)
e. Check the Diagnostics (DTV country only) ‡ Buyer model
displayed (ex 42LE7500-ZA)
Commercial MENU
SET
PC
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