DOWNLOAD LG 47LH70YD (CHASSIS:LJ91D) Service Manual ↓ Size: 4.23 MB | Pages: 73 in PDF or view online for FREE

- 9 -

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 

0 

0 

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 

1 

11.  Channel Memory 

RF : 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 
14, 30, 51, 63 
CATV : 15, 16, 17 

1. 

Product 
Dim ension

No. 

47LH70YD-SE

Item 

Con tent 

Unit 

Remark 

 

Width (W) 

Length (D)

Height (H)

mm

 

824.4

1123.6

372.8

1123.6

40.9

1469

239

mm

With Stand 

W/O Stand 

W/O Stand 

W/O Stand 

W/O Packing

W/O Packing

With Packing

With Packing

765.7

mm

 

838

1239

232

838

mm

mm

With Stand 

26.4

With Stand 

22.8 

2. 

Product 
Weight 

27.4

23.8

Kg 

Kg 

W/O Stand 

Kg 

Kg 

With Stand 

- 10 -

This specification sheet is applied all of the LJ91D, LJ92J
LCD TV models, which produced in manufacture department
or similar LG TV factory.

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.    

• 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”   

• 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 

Pin

JTAG Mode Signal Name

2

TCK

3

TMS

8

TDI

11

TDO

13

-

15

VCC

18 TO 25

GND

- 11 -

- 12 -

Adjust 3 items at 3.1 PCB assembly adjustments “4.1.3

sequence” one after the order. 

O 

Adjustment protocol

See ADC Adjustment RS232C Protocol_Ver1.0

O 

Adjustment protocol

- Pattern Generator : (MSPG-925FA)
- Adjust 480i Comp1 (MSPG-925FA : model :209 , pattern

: 65)

- Adjust 1080p Comp1/RGB(MSPG-925FA:model : 225 ,

pattern : 65)

- Adjust RGB (MSPG-925FA:model :225 , Pattern :65) –

RGB-PC Mode 

* If you want more information then see the below Adjustment
method (Factory Adjustment)

O 

Adjustment sequence

- ad 00 00 : Enter the ADC Adjustment mode.
- xb 00 40: Change the mode to Component1 (No actions) 
- ad 00 10: Adjust 480i Comp
- ad 00 10: Adjust 1080p Comp 
- xb 00 60: Change to RGB-PC mode(No action) 
- ad 00 10: Adjust 1080p RGB
- ad 00 90: End of the adjustment

Order

Command

Set response

1. Inter the 

ad 00 00

d 00 OK00x

Adjustment mode

2. Change the 

kb 00 40

b 00 OK40x (Adjust 480i Comp1/1080p Comp1)

Source

kb 00 60  b 00 OK60x (Adjust 1080p RGB)

3.Start Adjustment ad 00 10

4.Return the 

OKx ( Success condition )

Response

NGx ( Failed condition )

5.Read (main)

(main : component1 480i, RGB 1080p)

Adjustment data

ad 00 20

000000000000000000000000007c007b006dx

(main)

(main : component1 1080p) 

ad 00 30

000000070000000000000000007c00830077x

6.Confirm 

ad 00 99

NG 03 00x (Failed condition)

Adjustment

NG 03 01x (Failed condition)

NG 03 02x (Failed condition)

OK 03 03x (Success condition)

7. End of Adjustment ad 00 90

d 00 OK90x