DOWNLOAD LG 42LX6500-UB (CHASSIS:LA02R) Service Manual ↓ Size: 7.65 MB | Pages: 105 in PDF or view online for FREE

- 9 -

No Resolution 

H-freq(kHz) V-freq.(kHz)  Pixel 

clock 

Proposed 

PC

DDC

1. 

640*350 

31.468 

70.09 

25.17   

EGA 

X  

2. 

720*400 

31.469 

70.08 

28.32   

DOS 

O 

3. 

640*480 

31.469 

59.94 

25.17   

VESA(VGA) 

O

4 .

800*600 

37.879 

60.31 

40.00   

VESA(SVGA) 

O 

5. 

1024*768 

48.363 

60.00 

65.00   

VESA(XGA) 

O 

6. 

1280*768 

47.776 

59.870 

79.50   

CVT(WXGA) 

X 

7. 1360*768 

47.712 

60.015 

85.50 

 

VESA(WXGA) 

X

8. 

1280*1024 

63.981 60.020 108.00 

 

 

VESA(SXGA)

O 

9. 

1920*1080 

67.5 

60 

148.5   

HDTV 1080P

O

DTV

1 

720*480 

31.5 

60 

27.027   

SDTV 480P 

2 

720*480 

31.47 

59.94 

27.00   

SDTV 480P 

3 

1280*720 

45.00 

60.00 

74.25   

HDTV 720P 

4 

1280*720 

44.96 

59.94 

74.176   

HDTV 720P 

5 

1920*1080 

33.75 

60.00 

74.25   

HDTV 1080I 

6 

1920*1080 

33.72 

59.94 

74.176   

HDTV 1080I 

7 

1920*1080 

67.500 

60 

148.50   

HDTV 1080P 

8 

1920*1080 

67.432 

59.939 

148.352   

HDTV 1080P 

9 

1920*1080 

27.000 

24.000 

74.25   

HDTV 1080P 

10 

1920*1080 

26.97 

23.976 

74.176   

HDTV 1080P 

11 

1920*1080 

33.75 

30.000 

74.25   

HDTV 1080P 

12 

1920*1080 

33.71

29.97 

74.176   

HDTV 1080P 

- 10 -

No Resolution 

H-freq(kHz) 

V-freq.(kHz) 

Pixel 

clock  Proposed 

Remark

1

1280x720

45.00

60.00

74.25

HDTV 720P

Side by Side

Top&Bottom

HDMI1.4 Frame Packing

2

1920x1080

33.75

60.00

74.25

HDTV 1080I

Side by Side

Top&Bottom

3

1920x1080

67.500

60

148.50

HDTV 1080P

Side by Side

Top&Bottom

Checkerboard

Single Frame Sequential

HDMI1.4 Frame Packing

4

1920x1080

27.00

24.000

74.25

HDTV 1080P

Side by Side

Top&Bottom

Checkerboard

HDMI1.4 Frame Packing

5

1920x1080

33.75

30.000

74.25

HDTV 1080P

Side by Side

Top&Bottom

Checkerboard

No Resolution 

H-freq(kHz) 

V-freq.(kHz) 

Pixel 

clock  Proposed 

Remark

5

1920x1080

33.75

30.000

74.25

HDTV 1080P

Side by Side

Top&Bottom

Checkerboard

No

1

Side by Side

Top&Bottom

Checkerboard

Single Frame Sequential

Frame Packing

- 11 -

This spec sheet is applied to LA02R Chassis applied LCD TV
all models manufactured in TV factory  

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.  

2.2   Adjustment must be done in the correct order.  
2.3  The adjustment must be performed in the

circumstance of  25±5°C of temperature and 65±10%
of relative humidity   

2.4   The input voltage of the receiver must keep

100~240V, 50/60Hz.  

2.5    The receiver must be operated for about 5 minutes

prior to the adjustment when module is in the
circumstance of over 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  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.  

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. 

• Adjust  480i Comp1  

Remark) Above adjustment items can be also performed in

Final Assembly if needed. Adjustment items in
both PCBA and final assembly stages can be
checked by using the INSTART Menu
1.ADJUST CHECK. 

Component 1080p and RGB-PC Adjust will be
calculated by 480i adjust value.

•EDID/DDC download
•White Balance adjustment 
•RS-232C functionality check 
•Factory Option setting per destination 
•Ship-out mode setting (In-Stop) 

• Ship-out mode 
• Tool option menu  
• USB Download(S/W Update, Option, Service only)  

(1) Overview

ADC adjustment is needed to find the optimum black level
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) 

- Resolution : 480i Comp1 (MSPG-925FA: model-209,

pattern-65)  

- Resolution : 1080p Comp1 (MSPG-925FA: model-225,

pattern-65) 

- Resolution : 1920x1080 RGB (MSPG-925FA: model-

225, pattern-65) 

- Pattern: Horizontal 100% Color Bar Pattern 
- Pattern level: 0.7±0.1 Vp-p 
- Image 

(3) Adjustment

1) Adjustment method

- Using RS-232, adjust items listed in 3.1 in the other

shown in “4.1.3.3”

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

(480i/1080p)] 

• ad 00 10  [Adjust 480i/1080p Comp1] 
• ad 00 10  [Adjust 1080p Comp1] 
• xb 00 60  [Change input source to RGB(1920x1080)] 
• ad 00 10  [Adjust 1920x1080 RGB] 
• ad 00 90  End adj. 

- 12 -

5.1.1 Communication Port connection 

1 Connect : PCBA Jig-> RS-232C Port== PC-> RS-232C

Port 

2 Mac Address Input

1) Equipment setting

- Play file : Serial.exe
- MAC Address edit

Srart / End MAC address input

- Communication port connection
- Com 1,2,3,4 and 115200(Baudrate)
- Port connection button click(1)

Load button click(2) for MAC Address write.

2) Start MAC Address write button(3) 
3)  Check the OK Or NG  

5.1.2 Download ESN Key
1. Input the ESN Key
• Download Model sending Key file
• input by 1 by SET so as not to be duplicated 

5.2.1 Equipment & Condition 

• Each other connection to LAN Port of IP Hub and Jig 

5.2.2 LAN inspection solution 
• LAN Port connection with PCB 
• Network setting at MENU Mode of TV 
• setting automatic IP 
• Setting state confirmation 

- If automatic setting is finished, you confirm IP and MAC

Address. 

5.2.3 ESN Key confirmation  

• confirm Key input Data at ESN MENU Mode 

PC(RS-232C)

RS-232C Port