DOWNLOAD LG 32LD452B / 32LD452C (CHASSIS:LA01Z) Service Manual ↓ Size: 4.87 MB | Pages: 48 in PDF or view online for FREE

Model
32LD452B 32LD452C (CHASSIS:LA01Z)
Pages
48
Size
4.87 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32ld452b-32ld452c-chassis-la01z.pdf
Date
PREV: LG 32LD450C (CHASSIS:LC01B) Service Manual

LG 32LD452B / 32LD452C (CHASSIS:LA01Z) Service Manual ▷ View online

1. Application range
This spec sheet is applied all of the 37”, 42”, 47” LCD TV with
LA01Z chassis. 
2. Requirement for Test
Each part is tested as below without special appointment.
1) Temperature:  25±5ºC, (77°±9ºF), CST: 40±5°C 
2) Relative Humidity:  65±10%
3) Power Voltage : Standard input voltage(100-240V~, 50/60Hz)
* Standard Voltage of each product is marked by models
4) Specification and performance of each parts are followed
each drawing and specification by part number in
accordance with BOM.
5) The receiver must be operated for about 20 minutes prior to
the adjustment.
3. Test method
1) Performance: LGE TV test method followed 
2) Demanded other specification 
- Safety : UL, CSA, IEC specification 
- EMC: FCC, ICES, IEC specification 
Model
Market
Appliance
Safety : UL1492, CSA C22.2.No.1, 
42LD450C-UA 
EMC : FCC Class B, IEC Class B 
47LD450C-UA
- 6 -
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
4. General Specification(TV)
No
Item
Specification
Remark
1
Receivable System
1) ATSC / NTSC-M
2
Available Channel
VHF : 02 ~ 13
UHF : 14 ~ 69
DTV : 02 ~ 69
CATV : 01 ~ 135
CADTV : 01 ~ 135
3
Input Voltage
1) AC 100 ~ 240V 50/60Hz
4
Market
5
Screen Size
47 inch Wide
FHD  
47LD450C-UA /47LD452C-UA
42 inch Wide 
FHD  
42LD450C-UA /42LD452C-UA
37 inch Wide 
FHD  
37LD450C-UA /37LD452C-UA
6
Aspect Ratio
16:9
7
Tuning System
FS
8
LCD Module
LC470WUG-SCA1 
LGD  
47LD450C-UA /47LD452C-UA
LC420WUG-SCA1 LGD 
 
42LD450C-UA/42LD452C-UA
V420H2-L02 CMO 
 
T420HW06-V0 AUO 
 
T370HW03-VB AUO 
37LD450C-UA/37LD452C-UA
LC370WUG-SCA1 
LGD   
9
Operating Environment
Temp  : 0 ~ 40 deg
Humidity : ~ 80 %
10
Storage Environment
Temp  : -20 ~ 60 deg
Humidity : -85 %
- 7 -
6. Component Video 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 
31.50 
60 
27.027   
SDTV 
4. 
720*480 
31.47 
59.94 
27.0   
SDTV 
5. 
1280*720 
45.00 
60.00 
74.25   
HDTV 
6. 
1280*720 
44.96 
59.94 
74.176   
HDTV 
7. 
1920*1080 
33.75 
60.00 
74.25   
HDTV 
8. 
1920*1080 
33.72 
59.94 
74.176   
HDTV 
9. 
1920*1080 
67.500 
60 
148.50   
HDTV 
10. 
1920*1080 
67.432 
59.94 
148.352   
HDTV 
11. 
1920*1080 
27.000 
24.000 
74.25   
HDTV 
12. 
1920*1080 
26.97 
23.976 
74.176   
HDTV 
13. 
1920*1080 
33.75 
30.000 
74.25   
HDTV 
14. 
1920*1080 
33.71
29.97
74.176   
HDTV 
7. RGB Input (PC)
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 
59.87 
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. 
1600*1200 
75.00 
60.00 
162   
VESA(UXGA)
O
10. 
1920*1080 
66.587 
59.934 
148.5   
HDTV 1080P
O
- 8 -
8. HDMI input (PC/DTV)
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. 
1600*1200 
75.00 
60.00 
162   
VESA(UXGA)
O
10. 
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 
- 9 -
ADJUSTMENT INSTRUCTION
1. Application range 
This spec. sheet applies to LA01Z Chassis applied LCD TV all
models manufactured in TV factory 
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 protect test instrument.  
2.2   AdjThe 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.  
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. 
3. Adjustment items
3.1 Board Level Adjustment  
•Adjust 480i Comp1(ADC) 
•EDID/DDC download 
Above adjustment items can be also performed in Final
Assembly if needed. Both Board-level and Final assembly
adjustment items can be check using In-Star Menu 1.ADJUST
CHECK. Component 1080p and RGB-PC Adjust will be
calculated by 480i adjust value. 
3.2 Final assembly adjustment 
•White Balance adjustment 
•RS-232C functionality check 
•Factory Option setting per destination 
•Ship-out mode setting (In-Stop) 
3.3 Etc
•Ship-out mode 
•Service Option Default 
•USB Download(S/W Update, Option, Service only) 
•ISP Download (Optional) 
4. Automatic Adjustment
4.1. 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. 
(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 : 1024*768 RGB (Inner Pattern) 
- Pattern : Horizontal 100% Color Bar Pattern 
- Pattern level : 0.7±0.1 Vp-p
(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)]
- ad 00 10  [Adjust 480i Comp1]
- xb 00 60  [Change input source to RGB(1024*768)]
- ad 00 10  [Adjust 1024*768 RGB]
- ad 00 90  End adj.
Protocol
Command
Set ACK
Enter adj. mode
aa 00 00
a 00 OK00x
Source change
xb 00 40
b 00 OK40x (Adjust 480i Comp1 )
xb 00 60 
b 00 OK60x (Adjust 1024*768 RGB)
Begin adj.
ad 00 10
Return adj. result
OKx (Case of Success)
NGx (Case of Fail)
Read adj. data
(main)
(main)
ad 00 20 
000000000000000000000000007c007b006dx
(sub)
(Sub)
ad 00 21
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
Page of 48
Display

Click on the first or last page to see other 32LD452B / 32LD452C (CHASSIS:LA01Z) service manuals if exist.

RANDOM: