DOWNLOAD LG 55LM4610 / 55LM4650 (CHASSIS:LB21B) Service Manual ↓ Size: 5.03 MB | Pages: 44 in PDF or view online for FREE

Model
55LM4610 55LM4650 (CHASSIS:LB21B)
Pages
44
Size
5.03 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lm4610-55lm4650-chassis-lb21b.pdf
Date

LG 55LM4610 / 55LM4650 (CHASSIS:LB21B) Service Manual ▷ View online

- 7 -
5. Component Video Input (Y, P
B
, P
R
)
6. RGB (PC)
No.
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel clock(MHz)
Proposed
1
720*480i
15.73
59.94
13.500
SDTV, DVD 480I(525I)
2
720*480i
15.73
60.00
13.514
SDTV, DVD 480I(525I)
3
720*576i
15.625
50.00
13.500
SDTV, DVD 576I(625I) 50Hz
4
720*480p
31.47
59.94
27.000
SDTV 480P
5
720*480p
31.50
60.00
27.027
SDTV 480P
6
720*576p
31.25
50.00
27.000
SDTV 576P 50Hz
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 50Hz
10
1920*1080
28.125
50.00
74.250
HDTV 1080I 50Hz
11
1920*1080
33.72
59.94
74.176
HDTV 1080I
12
1920*1080
33.75
60.00
74.25
HDTV 1080I
13
1920*1080
26.97
23.976
63.296
HDTV 1080P
14
1920*1080
27.00
24.000
63.36
HDTV 1080P
15
1920*1080
33.71
29.97
79.120
HDTV 1080P
16
1920*1080
33.75
30.00
79.20
HDTV 1080P
17
1920*1080
56.25
50
148.5
HDTV 1080P
18
1920*1080
67.432
59.94
148.350
HDTV 1080P
19
1920*1080
67.5
60.00
148.5
HDTV 1080P
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remarks
1
640*350
31.468
70.09
25.17
EGA
2
720*400
31.469
70.09
28.32
DOS
3
640*480
31.469
3.
640*480
31.469
4
800*600
37.879
60.317
40
VESA(SVGA)
5
1024*768
48.363
60.004
65
VESA(XGA)
6
1360*768
47.712
60.015
84.75
VESA(WXGA)
7
1920*1080
66.587
59.934
138.50
WUXGA (Reduced Blanking)
Only FHD Model
- 8 -
7. HDMI Input
(1) DTV Mode
No.
Resolution
H-freq(kHz)
V-freq.(kHz)
Pixel 
clock(MHz)
Proposed
Remarks
1
720*480
15.73
59.94
13.500
SDTV, DVD 480I(525I)
Spec. out but display
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) 50Hz
4
720*480
31.47
59.94
27
SDTV 480P
5
720*480
31.5
60.00
27.027
SDTV 480P
6
720*576
31.25
50.00
27
SDTV 576P
7
1280*720
44.96
59.94
74.176
HDTV 720P
8
1280*720
45
60.00
74.25
HDTV 720P
9
1280*720
37.5
50.00
74.25
HDTV 720P
10
1920*1080
28.125
50.00
74.25
HDTV 1080I 
11
1920*1080
33.72
59.94
74.176
HDTV 1080I
12
1920*1080
33.75
60.00
74.25
HDTV 1080I
13
1920*1080
26.97
23.976
63.296
HDTV 1080P
14
1920*1080
27.00
24.000
63.36
HDTV 1080P
15
1920*1080
33.71
29.97
79.120
HDTV 1080P
16
1920*1080
33.75
30.00
79.20
HDTV 1080P
17
1920*1080
56.25
50.00
148.5
HDTV 1080P 
18
1920*1080
67.432
59.94
148.350
HDTV 1080P
19
1920*1080
67.5
60.00
148.5
HDTV 1080P
(2) PC Mode
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remarks
1
640*350
31.468
70.09
25.17
EGA
2
720*400
31.469
70.09
28.32
DOS
3
640*480
31.469
59.94
25.17
VESA(VGA)
4
800*600
37.879
60.317
40
VESA(SVGA)
5
1024*768
48.363
60.004
65
VESA(XGA)
6
1152*864
54.348
60.053
80.002
VESA(VGA)
7
1360*768
47.712
60.015
84.75
VESA(WXGA)
8
1280*1024
63.981
60.02
109.00
SXGA
Only FHD Model
(Support to HDMNI-PC)
9
1920*1080
67.5
60
158.40
WUXGA (Reduced Blanking)
Only FHD Model
- 9 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LED LCD TV 
with LB21B chassis.
2. Designation
(1)  The adjustment is according to the order which is designated 
and  which  must  be  followed,  according  to  the  plan  which 
can be changed only on agreeing.
(2) Power adjustment : Free Voltage.
(3) Magnetic Field Condition: Nil.
(4) Input signal Unit: Product Specification Standard.
(5) Reserve after operation : Above 5 Minutes (Heat Run)
  Temperature : at 25 °C ± 5 °C
  Relative humidity : 65 ± 10 %
  Input voltage : 220 V, 60 Hz
(6)  Adjustment equipments: Color Analyzer(CA-210 or CA-110), 
DDC Adjustment Jig, Service remote control.
(7) Push the "IN STOP" key - For memory initialization.
3. Main PCB check process
▪ APC - After Manual-Insert, executing APC
* Boot file Download
(1)  Execute  ISP  program  "Mstar  ISP  Utility"  and  then  click 
"Config" tab.
(2)  Set as below, and then click "Auto Detect" and check "OK" 
message.
If "Error" is displayed, check connection between computer, 
jig, and set.
(3)  Click  "Read"  tab,  and  then  load  download  file(XXXX.bin) 
by clicking "Read"
(4)  Click "Connect" tab. If "Can't" is displayed, check connection 
between computer, jig, and set.
(5) Click "Auto" tab and set as below.
(6) Click "Run".
(7) After downloading, check "OK" message.
* USB DOWNLOAD
(1) Put the USB Stick to the USB socket.
(2) Automatically detecting update file in USB Stick.
-  If your downloaded program version in USB Stick is Low, 
it didn't work. But your downloaded version is High, USB 
data is automatically detecting.
 
(1) 
 
filexxx.bin
(4) 
 
(5)
(6)
(7)...........OK
filexxx.bin
 
(2) 
 
(3) 
 
Please Check the Speed :
To use speed between
from 200KHz to 400KHz
Case1 : Software version up
1.  After downloading S/W by USB , TV set will reboot 
automatically.
2. Push “In-stop” key.
3. Push “Power on” key.
4. Function inspection
5. After function inspection, Push “In-stop” key.
Case2 : Function check at the assembly line
1.  When TV set is entering on the assembly line, Push 
“In-stop” key at first.
2. Push “Power on” key for turning it on.
→  If you push “Power on” key, TV set will recover 
channel information by itself.
3. After function inspection, Push “In-stop” key.
- 10 -
(3) Show the message "Copying files from memory".
(4) Updating is starting.
(5) Updating Completed, The TV will restart automatically.
(6)  If  your TV  is  turned  on,  check  your  updated  version  and 
Tool option. (explain the Tool option, next stage)
*  If downloading version is more high than your TV have, TV 
can lost all channel data. In this case, you have to channel 
recover. if all channel data is cleared, you didn’t have a DTV/
ATV test on production line.
* After downloading, have to adjust Tool Option again.
(1) Push "IN-START" key in service remote control.
(2) Select "Tool Option 1" and push "OK" key.
(3) Punch in the number. (Each model has their number)
3.1. ADC Process
(1) ADC
- Enter Service Mode by pushing "ADJ" key,
Calibration".
<Caution>  Using  "power  on"  key  of  the Adjustment  remote 
control, power on TV.
* ADC Calibration Protocol (RS232)
Adjust Sequence
▪ aa 00 00 [Enter Adjust Mode]
▪ xb 00 40 [Component1 Input (480i)]
▪ ad 00 10 [Adjust 480i Comp1]
▪ xb 00 60 [RGB Input (1024*768)]
▪ ad 00 10 [Adjust 1024*768 RGB]
▪ aa 00 90 End Adjust mode
* Required equipment : Adjustment remote control.
3.2. MAC Address 
3.2.1. Equipment & Condition
▪ Play file: Serial.exe
▪ MAC Address edit
▪ Input Start / End MAC address 
3.2.2. Download method
(1) Communication Prot connection
Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port
(2) MAC Address Download, Whidevine Download
▪ Com 1,2,3,4 and 115200(Baud rate)
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hkjGjˆ“‰™ˆ›–•
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NO
Item
CMD 1 CMD 2 Data 0
Enter
Adjust MODE
Adjust 
‘Mode In’
A
A
0
0
When transfer the  ‘Mode In’, 
Carry the command.
ADC adjust
ADC Adjust
A
D
1
0
Automatically adjustment
(The use of a internal pattern)
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