DOWNLOAD LG 42LH40ED / 42LH45ED (CHASSIS:LJ92J) Service Manual ↓ Size: 5.93 MB | Pages: 76 in PDF or view online for FREE

Model
42LH40ED 42LH45ED (CHASSIS:LJ92J)
Pages
76
Size
5.93 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lh40ed-42lh45ed-chassis-lj92j.pdf
Date

LG 42LH40ED / 42LH45ED (CHASSIS:LJ92J) Service Manual ▷ View online

- 7 -
5. Chromiance & Luminance spec.
No 
Item 
Min 
Typ 
Max 
Unit 
Remark
 
Module
 cd/m 
LC420WUE-SBC1 
1. Max 
Luminance 
(Center 1-point / Full White 
Pattern) 
Set 
400 500 
400 500 
  cd/m 
 
2. 
3.
Luminance uniformity 
77 
 
 
Full white 
0.638
0.334
 
4. 
5.
RED 
 
0.290 
0.606
 
6. 
7.
GREEN 
 
0.144 
0.064
 
8. 
9.
BLUE 
 
0.279  
10. 
Colo
coordinate 
WHITE 
X
X
X
X
Typ. 
-0.03 
0.292 
Typ. 
+0.03
 
 
11.  Color coordinate uniformity 
 
 
 
 
N/A 
700:1 1000:1  
 
NORMAL 
 
 
 
 
 
Contrast ratio 
7000:1 10000:1  
 
DCR 
Cool
0.281 
0.274
0.276 
0.283 
0.278
0.285
 
Standard
0.291 
0.283
0.311
0.285 
0.293 
0.287
0.295
 
12. Color 
Temperature 
Warm
0.327 
0.313 
0.329 
0.315
0.331
 
<Test Condition> 
85% Full white pattern 
** The W/B Tolerance is 
–0.015 for Adjustment
Dynamic contrast : off 
Dynamic color : off 
OPC : off 
13.  Color Distortion, DG 
 
 
10.0 
 
14.  Color Distortion, DP 
 
 
10.0 
deg 
 
15.  Color S/N, AM/FM 
43.0 
 
 
dB 
 
16.  Color Killer Sensitivity 
-80 
 
 
dBm 
 
6. Component Input (Y, C
B
/P
B
, C
R
/P
R
)
No 
Resolution 
H-freq(kHz) 
V-freq.(kHz) 
Pixel clock 
Proposed 
1. 720*480 
15.73 
60 
13.5135 
 
SDTV 
,DVD 
480I 
2. 720*480 
15.73 
59.94 
13.5 
 
SDTV 
,DVD 
480I 
3. 720*480 
31.47 
60 
27.027 
 
SDTV 
480P 
4. 720*480 
31.47 
59.94 
27.0 
 
SDTV 
480P 
5. 1280*720 
45.00 
60.00 
74.25 
 
HDTV 
720P 
6. 1280*720 
44.96 
59.94 
74.176 
 
HDTV 
720P 
7. 1920*1080 
33.75 
60.00 
74.25 
 
HDTV 
1080I
8. 1920*1080 
33.72 
59.94 
74.176 
 
HDTV 
1080I
9. 1920*1080 
67.500 
60 
148.50 
 
HDTV 
1080P
10. 1920*1080 
67.432 
59.939 
148.352 
 
HDTV 
1080P
11. 1920*1080 
27.000 
24.000 
74.25 
 
HDTV 
1080P
12. 1920*1080 
26.97 
23.94 
74.176 
 
HDTV 
1080P
13. 1920*1080 
33.75 
30.000 
74.25 
 
HDTV 
1080P
14. 1920*1080 
33.71 
29.97 
74.176 
 
HDTV 
1080P 
15. 1920*1080 
56.25 
50.000 
148.5 
 
HDTV 
1080P 
16. 1920*1080 
28.125 
25.000 
74.25 
 
HDTV 
1080P 
- 8 -
7. RGB Input (PC)
No 
Resolution 
H-freq(kHz) 
V-freq.(Hz) 
Pixel clock(MHz)
Proposed 
 PC 
DDC
1. 640*350 
31.468 
70.09 
25.17 
EGA 
X
O
O
O
O
O
O
O
O
O
O
2. 720*400 
31.469 
70.08 
28.32 
DOS 
3. 640*480 
31.469 
59.94 
25.17 
VESA(VGA) 
4. 800*600 
35.156 
56.25 
36.00 
 
VESA(SVGA)
5. 800*600 
37.879 
60.31 
40.00 
VESA(SVGA)
6. 1024*768 
48.363 
60.00 
65.00 
VESA(XGA) 
7. 1280*768 
47.776 
59.870 
79.5 
CVT(WXGA) 
8. 1360*768 
47.712 
60.015 
85.50 
VESA 
(WXGA)
 
9. 1280*1024 
63.981 
60.020 
108.00 
VESA 
10. 1600*1200 
75.00 
60.00 
162 
VESA 
(UXGA) 
11 1920*1080 
67.5 
60 
148.5 
HDTV 
1080P 
** RGB PC Monitor Range Limits
- Min Vertical Freq - 56 Hz 
- Max Vertical Freq - 62 Hz 
- Min Horiz. Freq - 30 kHz 
- Max Horiz. Freq - 80 kHz 
- Pixel Clock  - 170 MHz 
8. HDMI Input (PC/DTV)
No 
Resolution  
H-freq(kHz) 
V-freq.(Hz) 
Pixel clock(MHz)
Proposed 
 PC 
DDC
1 640*350 
31.468 
70.09 
25.17 
EGA 
X
O
O
O
O
O
O
O
O
O
O
2 720*400 
31.469 
70.08 
28.32 
DOS 
3 640*480 
31.469 
59.94 
25.17 
VESA(VGA) 
4 800*600 
35.156 
56.25 
36.00 
VESA(SVGA) 
5 800*600 
37.879 
60.31 
40.00 
VESA(SVGA) 
6 1024*768 
48.363 
60.00 
65.00 
VESA(XGA) 
7 1280*768 
47.776 
59.870 
79.5 
CVT(WXGA) 
1360*768 
47.712 
60.015 
85.50 
VESA (WXGA)         
9 1280*1024 
63.981 
60.020 
108.00 
VESA 
(SXGA) 
10 1600*1200 
75.00 
60.00 
162 
VESA 
(UXGA) 
11 1920*1080 
66.587 
59.934 
138.5 
HDTV 
1080P 
 DTV 
1 720*480 
31.47 
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 
23.94 
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 
17. 1920*1080 
56.25 
50.000 
148.5 
HDTV 
1080P 
18. 1920*1080 
28.125 
25.000 
74.25 
HDTV 
1080P 
** HDMI  Monitor Range Limits
- Min Vertical Freq - 56 Hz  
- Max Vertical Freq - 62 Hz  
- Min Horiz. Freq - 30 kHz 
- Max Horiz. Freq - 80 kHz 
- Pixel Clock  - 170 MHz  
- 9 -
9. Consignment Setting (OUTGOING CONDITION)
10. Mechanical Specification 
No 
Item 
Condition 
1. Input 
Mode 
TV02CH 
2. Volume 
Level 
10 
3. Mute 
Off 
4. Aspect 
Ratio 
16:9 
5. System 
Color 
PAL-M 
6 Booster 
On 
Picture Mode 
Vivid 
Backlight
Contrast
Brightness
Sharpness
Color
70 
70 
100
100
50
 
Tint
Color Temperature 
Cool 
7. Picture 
Picture Reset 
 
Sound Mode 
Standard 
Auto Volume 
Off 
Clear Voice 
Off 
SRS TruSurround XT 
Off 
Balance
8. Audio 
TV Speaker 
On 
On 
Clock
Auto
9. Time 
Off Timer / On Timer 
Sleep Timer / Auto Sleep 
Off 
Language (Menu/Audio) 
Portugues 
SimpLink
Key Lock 
Off 
Off 
Caption
10. Option 
Set ID 
11.  Channel Memory 
RF : 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 
14, 30, 51, 63 
CATV : 15, 16, 17 
No. 
Item 
Con tent 
Unit 
Remark 
 
Width (W) 
Length (D)
Height (H)
mm
 
721.3
1036
296.2
1036
89.8
1330
228
mm
With Stand 
Before Packing 
655.4
mm
Without Stand 
1. 
Product 
Dim ension  
After Packing 
770
mm
With Stand 
19.5kg
With Stand 
Only SET 
17.7Kg
Without Stand
2. 
Product 
Weight 
With BOX 
24.0kg 
Kg 
Kg 
Kg 
With Stand 
40ft
40ft(H-CUBIC) 
Indi. Woo den  Indi.  Wooden 
3. 
Container 
Loading 
Quantity 
Individual or Palletizing
270 - 
270 - 
4. Stand 
Assy 
Swivel Degree
 Swivel Force
Swivel(+/- 20degree) 
1.5 Kgf(0.8Kgf ~ 2.5Kgf) 
5. Appearance General  
Refer to Standard of LG(56)G4-9002 
 
 
- 10 -
ADJUSTMENT INSTRUCTION
1. Application Range 
This specification sheet is applied all of the LJ91D, LJ92J
LCD TV models, which produced in manufacture department
or similar LG TV factory.
2. Notice
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) Adjustment must be done in the correct order. But it is
flexible when its factory local problem occurs. . 
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.  
4) The input voltage of the receiver must keep 100~220V,
50/60Hz. 
5) Before adjustment, execute Heat-Run for 5 minutes.  
• After Receive 100% Full white pattern (06CH) then process
Heat-run  
(or “8. Test pattern” condition of Ez-Adjust status) 
• How to make set white pattern   
1) Press Power ON button of Service Remocon  
2) Press ADJ button of Service remocon. Select “8. Test
pattern” and, after select “White” using navigation button,
and then you can see 100% Full White pattern.    
* In this status you can maintain Heat-Run useless any
pattern generator 
* Notice: if you maintain one picture over 20 minutes
(Especially sharp distinction black with white pattern –
13Ch, or Cross hatch pattern – 09Ch) then it can appear
image stick near black level.    
3. Adjustment Items  
3.1 PCB Assembly adjustment 
• CPLD DOWNLOAD
• Adjust 480i Comp1   
• Adjust 1080p Comp1/RGB  
- If it is necessary, it can adjustment at Manufacture Line  
- You can see set adjustment status at “1. ADJUST
CHECK” of the “In-start menu”   
3.2 Set Assembly Adjustment 
• EDID (The Extended Display Identification Data ) / DDC
(Display Data Channel) download  
• Color Temperature (White Balance) Adjustment 
• Make sure RS-232C control  
• Selection Factory output option 
4. PCB Assembly Adjustment 
4.1. CPLD DOWNLOAD : JTAG MODE 
4.2. << PRINT PORT >> PIN MAP  
Pin
JTAG Mode Signal Name
2
TCK
3
TMS
8
TDI
11
TDO
13
-
15
VCC
18 TO 25
GND
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