LG 55LV5400 (CHASSIS:LA12E) Service Manual ▷ View online
- 9 -
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. 1360*768
47.712
60.015
85.50
VESA(WXGA)
X
7.
1280*1024
63.981 60.020 108.00
VESA(SXGA)
O
8.
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
- 10 -
ADJUSTMENT INSTRUCTION
1. Application range
This spec sheet is applied to LA12E Chassis applied LCD TV
all models manufactured in TV factory
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.
isolation transformer will help protect test instrument.
2.2 Adjustment must be done in the correct order.
2.3 The adjustment must be performed in the
2.3 The adjustment must be performed in the
circumstance of 25±5°C of temperature and 65±10%
of relative humidity
of relative humidity
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.
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.
strong. Digital pattern 13ch and/or Cross hatch
pattern 09ch), there can some afterimage in the
black level area.
3. Adjustment items
3.1. Main PCBA check process
• ADC adjustment: Component 480i, 1080p / RGB-PC 1080p
• EDID downloads for HDMI and RGB-PC
• EDID downloads for HDMI and RGB-PC
Remark) Above adjustment items can be also performed in
Final Assembly if needed. Adjustment items in
both PCBA and final assembly stages can be
checked by using the INSTART Menu
1.ADJUST CHECK.
both PCBA and final assembly stages can be
checked by using the INSTART Menu
1.ADJUST CHECK.
3.2 Final assembly adjustment
•White Balance adjustment
•RS-232C functionality check
•Factory Option setting per destination
•Ship-out mode setting (In-Stop)
•GND and HI-POT test
•RS-232C functionality check
•Factory Option setting per destination
•Ship-out mode setting (In-Stop)
•GND and HI-POT test
3.3 Appendix
• Tool option menu, USB Download (S/W Update, Option and
Service only)
• Manual adjustment for ADC calibration and White balance.
• Shipment conditions, Channel pre-set
• Shipment conditions, Channel pre-set
4. MAIN PCBA Adjustments
4.1. MAC Address and ESN Key and
WIDEVINE Key download
4.1.1. Equipment & Condition
1) Play file: keydownload.exe .
4.1.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200(Baudrate)
2) Barcode: Com 1,2,3,4 and 9600(Baudrate)
2) Barcode: Com 1,2,3,4 and 9600(Baudrate)
4.1.3. Download process
1) Select the download items.
2) Mode check: Online Only
3) Check the test process
2) Mode check: Online Only
3) Check the test process
• US, Canada models: DETECT MAC_WRITE
WIDEVINE_WRITE
• Korea, Mexico models: DETECT MAC_WRITE
WIDEVINE_WRITE
4) Play: START
5) Check of result: Ready, Test, OK or NG
6) Printer Out (MAC Address Label)
5) Check of result: Ready, Test, OK or NG
6) Printer Out (MAC Address Label)
4.1.4. Communication Port connection
1) Connect: PCBA Jig RS-232C Port == PC RS-232C Port
4.1.5. Download
1) US, Canada, Mexico models (11Y LCD TV + MAC +
Widevine + ESN Key)
- 11 -
4.1.6. Inspection
• In INSTART menu, check these keys.
• In INSTART menu, check these keys.
4.2. LAN port Inspection (Ping Test)
4.2.1. Equipment setting
1) Play the LAN Port Test PROGRAM.
2) Input IP set up for an inspection to Test Program.
2) Input IP set up for an inspection to Test Program.
- IP number: 12.12.2.2
4.2.2. LAN PORT inspection (PING TEST)
1) Play the LAN Port Test Program.
2) connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) remove LAN CABLE
2) connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) remove LAN CABLE
4.3. EDID Download
4.3.1. Overview
It is a VESA regulation. A PC or a MNT will display an
optimal resolution through information sharing without any
necessity of user input. It is a realization of “Plug and Play”.
optimal resolution through information sharing without any
necessity of user input. It is a realization of “Plug and Play”.
4.3.2. Equipment
• Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
• Adjust by using remote controller.
4.3.3. Download method
1) Press Adj. key on the Adj. R/C,
2) Select EDID D/L menu.
3) By pressing Enter key, EDID download will begin
4) If Download is successful, OK is display, but If
2) Select EDID D/L menu.
3) By pressing Enter key, EDID download will begin
4) If Download is successful, OK is display, but If
Download is failure, NG is displayed.
5) If Download is failure, Re-try downloads.
Caution) When EDID Download, must remove RGB/HDMI
Cable.
# HDMI 1(C/S : 7FC9)
EDID Block 0, Bytes 0-127 [00H-7FH]
EDID Block 1, Bytes 128-255 [80H-FFH]
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C9
- 12 -
# HDMI 2(C/S : 7FB9)
EDID Block 0, Bytes 0-127 [00H-7FH]
EDID Block 1, Bytes 128-255 [80H-FFH]
# HDMI 3(C/S : 7FA9)
EDID Block 0, Bytes 0-127 [00H-7FH]
EDID Block 1, Bytes 128-255 [80H-FFH]
# HDMI 4(C/S : 7F99)
EDID Block 0, Bytes 0-127 [00H-7FH]
EDID Block 1, Bytes 128-255 [80H-FFH]
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