DOWNLOAD LG 52LB9RF1-TB (CHASSIS:LP7AA) Service Manual ↓ Size: 3.58 MB | Pages: 26 in PDF or view online for FREE

Model
52LB9RF1-TB (CHASSIS:LP7AA)
Pages
26
Size
3.58 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
52lb9rf1-tb-chassis-lp7aa.pdf
Date

LG 52LB9RF1-TB (CHASSIS:LP7AA) Service Manual ▷ View online

- 9 -
8. Chroma & Brightness(52" SHARP FHD_LK520D3LZ1)
No Parameter 
Symbol 
Value Unit
Remark
Min
Typ
Max 
1.
Contrast Ratio
CR
1000 
1500 
(*) Normal Mode 
- 100IRE Full white window pattern
2.
Surface Luminance, 
L
BL
360 
450 
Cd/m2 
(*) Normal Mode 
white
- 100IRE Full white window pattern
3.
Luminance Variation
5
WHITE
5P 1,25 
4.
Color Coordinates[CIE1931]
RED 
Rx 
Typ 
0.640  
Typ
- 100IRE Full white pattern 
Ry -0.03
0.330 
+0.03
GREEN Gx 
0.280
Gy 0.600 
BLUE Bx 
0.150
By 0.060
WHITE Wx 
0,272 
Wy
0,277  
5.
Viewing Angle (RC > 10 ) 
X axis righ.  
r 70
88  -
degree 
(4)=0°)
X axis left.   
l 70
88  -
(<|)=180°) 
X axis up  
u 70
88  -
arriba (o=90°) 
X axis down  
d 70
88  -
(o=270°) 
• Standard Test  Condition
1) Surrounding Brightness  Level : dark
2) Surrounding Temperature : 25±2°C
3) Warm-up Time : 30 Min
4) Input Signal : VESA XGA 60Hz
5) Contrast, Brightness : Max.
6) Clock/Clock Phase : Accurate adjustment
- 10 -
9. Component Video Input  (Y, P
B
, P
R
)
10.  RGB Input ( PC )
No 
Resolution 
H-freq (kHZ) 
V-freq (Hz) 
Pixel clock (MHz) 
Proposed
1.
720*400
31,469
70,08
28,32
DOS
2.
640*480
31,469
59,94
25,17
VESA(VGA)
3.
800*600
37,879
60,31
40,00
VESA(SVGA)
4.
1024*768
48,363
60,00
65,00
VESA(XGA)
5.
1360*768
47,720
59,799
84,75
VESA(WXGA)
6. 1280*1024
63.668
59.895
109.00
SXGA
7.
1400*1050
65.317
59.978
121.75
SXGA
8.
1600*1200
74.537
59.869
161.00
UXGA
9.
1920*1080
66.587
59.934
138.50
WUXGA(Reduced Blanking)
No 
Resolution 
H-freq (kHZ) 
V-freq (Hz) 
Pixel clock (MHz) 
Proposed
1.
720*400
31,469
70,08
28,32
DOS
2.
640*480
31,469
59,94
25,17
VESA(VGA)
3.
800*600
37,879
60,31
40,00
VESA(SVGA)
4.
1024*768
48,363
60,00
65,00
VESA(XGA)
5.
1360*768
47,720
59,799
84,75
VESA(WXGA)
6. 1280*1024
63.668
59.895
109.00
SXGA
7.
1400*1050
65.317
59.978
121.75
SXGA
8.
1600*1200
74.537
59.869
161.00
UXGA
9.
1920*1080
66.587
59.934
138.50
WUXGA(Reduced Blanking)
11. HDMI Input  ( PC )
No 
Resolution 
H-freq (kHZ) 
V-freq (Hz) 
Pixel clock (MHz) 
Proposed
1.
720*480
15,73
59,94
13,500
SDTV, DVD 480I(525I)
2.
720*480
15,75
60,00
13,514
SDTV, DVD 480I(525I)
3.
720*576
15,625
50,00
13,500
SDTV, DVD 576I(625I)
4.
720*480
31,47
59,94
27,000
SDTV480P
5.
720*480
31,50
60,00
27,027
SDTV480P
6.
720*576
31,25
50,00
27,000
SDTV 576P
7.
1280*720
44,96
59,94
74,176
HDTV 720P
8.
1280*720
45,00
60,00
74,250
HDTV 720P
9.
1280*720
37,50
50,00
74,25
HDTV 720P 
10.
1920*1080
33,75
60,00
74,250
HDTV 1080I
11.
1920*1080
67,5
60,00
148,5
HDTV 1080P
12.
1920*1080
28,125
50
74,25
HDTV 1080I 
13.
1920*1080
56,25
50
148,5
HDTV 1080P
12. HDMI input  ( DTV)
No 
Resolution 
H-freq (kHZ) 
V-freq (Hz) 
Pixel clock (MHz) 
Proposed
1.
720*480
31,47
59,94
27,000
SDTV 480P
2.
720*480
31,50
60,00
27,027
SDTV 480P
3.
720*576
31,25
50,00
27,000
SDTV 576P
4.
1280*720
44,96
59,94
74,176
HDTV 720P
5.
1280*720
45,00
60,00
74,250
HDTV 720P
6.
1280*720
37,50
50,00
74,25
HDTV 720P
7.
1920*1080
33,75
60,00
74,250
HDTV 1080I
8.
1920*1080
67,5
60,00
148,5
HDTV 1080P
9.
1920*1080
28,125
50
74,25
HDTV 1080I
10.
1920*1080
56,25
50
148,5
HDTV 1080P
- 11 -
ADJUSTMENT INSTRUCTION
1. Application Range 
This spec. sheet is applied to all of the LP7AA chassis(H4)
manufactured at LG TV Plant all over the world.   
2. Specification 
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 to protect test instruments. 
2.2 Adjustment must be done in the correct sequence. 
2.3 The adjustment must be performed at  25±5°C
temperature and 65±10%, relative humidity if there is no
specified designation.
2.4 The  input voltage of the receiver must be kept between
100~220V, 50/60Hz.
2.5 Before adjustment, execute Heat-Run for 30 minutes at
FULL WHITE MODE(power on key)
3.  Adjustment items 
3.1 PCB assembly adjustment items
• l Channel memory
- Download the channel data from BOM to EEPROM by
using LGIDS.
• l Option adjustment following BOM  
-  Tool Option1
-  Tool Option2
-  Area Option
(Fig. 1)
1) Push the ADJ key in the Adjust Remocon.
2) Input the Option Number that was specified in the BOM,
into the Shipping area
3) Select "Tool Option1/ Tool Option2/ Area Option" by using
/
°„/°Â(CH+/-) key , and press the number key(0~9)
consecutively
ex) If  the value of Tool Option1 is 7, input the data using
number key "7" (Fig. 1) 
3.2 SET assembly adjustment items
• Auto AV1 Color Balance
• Adjustment of White Balance
• Auto Component Color Balance adjustment
- standard equipment : MSPG925FA
• Auto RGB Color Balance adjustment
-standard equipment : MSPG925FA
4. EDID 
4.1 Caution
* Use the proper signal cable for EDID Downloa.
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
*Caution: - Never connect HDMI & DVI-D & DVI-A Cable at
the same time.
- Use the proper cables below for EDID Writing
- Write 8bit using DDC2B protocol to input
ANALOG,HDMI EDID. 
4.1.1 EDID Data
4.2 Data
4.2.1. 52LB9RF HDMI1
• BLOCK1 (128BYTE)
• BLOCK2 (128BYTE)
4.2.2. 52LB9RF HDMI2
• BLOCK1 (128BYTE)
• BLOCK2 (128BYTE)
No
Item
Condition
16 Data 
1 Manufacturer ID
GSM
1E6D
2 Version
Digital: 1
01
3 Revision
Digital: 3
03
=> Detail EDID Options are below (a, b, c, d, e).
a. Product ID
b. Serial No:  Controlled on production line
c. Month, Year: Controlled on production line:  
ex)  Montly: ‘03’  => ‘03’ 
Year:  ‘2005’ => ‘0F’
d. Model Name/Monitor Name 
e. Checksum: Changeable by total EDID data
5. ADC Calibration 
5.1 Adjustment of AV   
* Required Equipments 
• Remote controller for adjustment
• 802F Pattern Generator, Master (MSPG-925FA), etc
• MSPG-925FA Pattern Generator
(Which has Video Signal: 100% Color Bar Pattern
shown in Fig. 1) 
=> Model: 202 / Pattern: 65 (PAL : CH).
Model: 207 / Pattern : 65 (NTSC-J).
(Fig. 1)
5.1.1 Method of Auto AV Color Balance
1) Press the FRONT-AV KEY on R/C for converting input
mode.
2) Input the Video Signal: 100% Color Bar signal into
AV(MA/TA)
3) Set the PSM to Dynamic mode in the Picture menu
4) Press INSTART key on R/C for adjustment
5) Press the 
(Vol. +)  key to operate the set, then it
becomes automatically
6) Auto-RGB OK means the adjustment is completed
5.1.2 Requirement 
• This AV color balance adjustment should be performed
before White Balance Adjustment. 
- 12 -
Model Name Product ID 
Product ID
Dec.
Hex.
EDID Tabla 
52LB9RF
50059(A)
50059
C38B
8BC3
50060(D)
50060
C38C
8CC3
Model
LG TV 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
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