LG 47LH70YD (CHASSIS:LJ91D) Service Manual ▷ View online
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5. Factory Adjustment
5.1 Manual Adjust Component 480i/1080p
RGB 1080p
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Summary : Adjustment component 480i/1080i and RGB
1080p is Gain and Black levelsetting at Analog
to Digital converter, and compensate the RGB
deviation
to Digital converter, and compensate the RGB
deviation
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Using instrument
- Adjustment remocon, 801GF(802B, 802F, 802R) or
MSPG925FA pattern generator (It can output 480i/1080i
horizontal 100% color bar pattern signal, and its output
level must setting 0.7V±0.1V p-p correctly)
horizontal 100% color bar pattern signal, and its output
level must setting 0.7V±0.1V p-p correctly)
<Pic.4 Adjustment pattern : 480i / 1080p 60Hz Pattern >
* You must make it sure its resolution and pattern cause every
instrument can have different setting
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Adjustment method 480i Comp1, Adjust 1080p
Comp1/RGB (Factory adjustment)
Comp1/RGB (Factory adjustment)
• ADC 480i Component1 adjustment
- Check connection of Component1
- MSPG-925FA Ë Model: 209, Pattern 65
• Set Component 480i mode and 100% Horizontal Color
- Check connection of Component1
- MSPG-925FA Ë Model: 209, Pattern 65
• Set Component 480i mode and 100% Horizontal Color
Bar Pattern(HozTV31Bar), then set TV set to
Component1 mode and its screen to “NORMAL”
Component1 mode and its screen to “NORMAL”
• ADC 1080p Component1 / RGB adjustment
- Check connection both of Component1 and RGB
- MSPG-925FA Model: 225, Pattern 65
- MSPG-925FA Model: 225, Pattern 65
• Set Component 1080p mode and 100% Horizontal Color
Bar Pattern(HozTV31Bar), then set TV set to
Component1 mode and its screen to “NORMAL”
Component1 mode and its screen to “NORMAL”
• After get each the signal, wait more a second and enter
the “IN-START” with press IN-START key of Service
remocon. After then select “7. External ADC” with
navigator button and press “Enter”.
remocon. After then select “7. External ADC” with
navigator button and press “Enter”.
• After Then Press key of Service remocon “Right
Arrow(VOL+)”
• You can see “ADC Component1 Success”
• Component1 1080p, RGB 1080p Adjust is same
• Component1 1080p, RGB 1080p Adjust is same
method.
• Component 1080p Adjustment in Component1 input
mode
• RGB 1080p adjustment in RGB input mode
• If you success RGB 1080p Adjust. You can see “ADC
• If you success RGB 1080p Adjust. You can see “ADC
RGB-DTV Success”
5.2 EDID (The Extended Display
Identification Data) / DDC (Display Data
Channel) Download.
Channel) Download.
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Summary
• It is established in VESA, for communication between
PC and Monitor without order from user for building user
condition. It helps to make easily use realize “Plug and
Play” function.
condition. It helps to make easily use realize “Plug and
Play” function.
• For EDID data write, we use DDC2B protocol.
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Auto Download
• After enter Service Mode by pushing “ADJ” key,
• Enter EDID D/L mode.
• Enter “START” by pushing “OK” key.
• Enter EDID D/L mode.
• Enter “START” by pushing “OK” key.
Caution: - Never connect HDMI & D-sub Cable when the user
downloading .
- Use the proper cables below for EDID Writing.
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Manual Download
• Write HDMI EDID data
- Using instruments
=> Jig. (PC Serial to D-Sub connection) for PC, DDC
adjustment.
=> S/W for DDC recording (EDID data write and
read)
=> D-sub jack
=> Additional HDMI cable connection Jig.
=> Additional HDMI cable connection Jig.
- Preparing and setting.
=> Set instruments and Jig. Like pic.5), then turn on
PC and Jig.
=> Operate DDC write S/W (EDID write & read)
=> It will operate in the DOS mode.
=> It will operate in the DOS mode.
Pic.3) For write EDID data, setting Jig and another instruments.
• EDID data for LJ91D Chassis (Model name = LG TV)
- HDMI-1 EDID table (0x33, 0x2C)
- HDMI-1 EDID table (0x33, 0x2C)
- HDM2 EDID table (0x33, 0x1C)
- HDMI-3 EDID table (0x33, 0x0C)
- Analog (RGB) EDID table (0x9B, 0x25)
PC
Download jig
RGB cable
Main
B/D
Edid data and Model option download (RS232)
NO
Item
CMD 1
CMD 2
Data 0
Enter
download MODE
Download
Mode
In
A E
0
0
When transfer the ’Mode In’ ,
Carry the command.
Edid data and
Model option
Model option
download
Download
A E *Note1
*Note2
Automatically download
(The use of a internal Data)
Adjust
Mode
Out
A E
9
0
Adjustment
Confirmation
A E
9
9
To check Download
on Assembly line.
5.3 Adjustment Color Temperature(White
balance)
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Using Instruments
• Color Analyzer: CA-210 (CH 9)
- Using LCD color temperature, Color Analyzer (CA-210)
must use CH 9, which Matrix compensated (White, Red,
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one.
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one.
• Auto-adjustment Equipment (It needs when Auto-
adjustment – It is availed communicate with RS-232C :
Baud rate: 115200)
Baud rate: 115200)
• Video Signal Generator MSPG-925F 720p, 216Gray
(Model: 217, Pattern 78)
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Connection Diagram (Auto Adjustment)
• Using Inner Pattern
• Using HDMI input
<Pic.5 Connection Diagram for Adjustment White balance> .
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White Balance Adjustment
If you can’t adjust with inner pattern, then you can adjust
it using HDMI pattern. You can select option at "Ez-Adjust
Menu – 7. White Balance" there items "NONE, INNER,
HDMI". It is normally setting at inner basically. If you can’t
adjust using inner pattern you can select HDMI item, and
you can adjust.
it using HDMI pattern. You can select option at "Ez-Adjust
Menu – 7. White Balance" there items "NONE, INNER,
HDMI". It is normally setting at inner basically. If you can’t
adjust using inner pattern you can select HDMI item, and
you can adjust.
In manual Adjust case, if you press ADJ button of service
remocon, and enter "Ez-Adjust Menu – 7. White
Balance", then automatically inner pattern operates. (In
case of "Inner" originally "Inner" will be selected.
remocon, and enter "Ez-Adjust Menu – 7. White
Balance", then automatically inner pattern operates. (In
case of "Inner" originally "Inner" will be selected.
• Connect all cables and equipments like Pic.5)
• Set Baud Rate of RS-232C to 115200. It may set
• Set Baud Rate of RS-232C to 115200. It may set
115200 orignally.
• Connect RS-232C cable to set
• Connect HDMI cable to set
• Connect HDMI cable to set
¢ RS-232C Command (Commonly apply)
wb
00
00
White Balance adjustment start.
wb
00
10
Start of adjust gain (Inner white
pattern)
pattern)
wb
00
1f
End of gain adjust
wb
00
20
Start of offset adjust(Inner white
pattern)
pattern)
wb
00
2f
End of offset adjust
wb
00
ff
End of White Balance adjust(Inner
pattern disappeared)
pattern disappeared)
• "wb 00 00": Start Auto-adjustment of white balance.
• "wb 00 10": Start Gain Adjustment (Inner pattern)
• "jb 00 c0" :
• …
• "wb 00 1f": End of Adjustment
• "wb 00 10": Start Gain Adjustment (Inner pattern)
• "jb 00 c0" :
• …
• "wb 00 1f": End of Adjustment
* If it needs, offset adjustment (wb 00 20-start, wb 00
2f-end)
• "wb 00 ff": End of white balance adjustment (inner
pattern disappear)
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C A -100+
C O L O R
A N A L Y Z E R
T Y P E ; C A -100+
F u l l W h i t e P at t er n
R S-232C
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White Balance Adjustment (Manual adjustment)
• Test Equipment: CA-210
- Using LCD color temperature, Color Analyzer (CA-
210) must use CH 9, which Matrix compensated
(White, Red, Green, Blue compensation) with CS-
2100. See the Coordination bellowed one.
(White, Red, Green, Blue compensation) with CS-
2100. See the Coordination bellowed one.
• Manual adjustment sequence is like bellowed one.
- Turn to "Ez-Adjust" mode with press ADJ button of
service remocon.
- Select "10.Test Pattern" with CH+/- button and press
enter. Then set will go on Heat-run mode. Over 30
minutes set let on Heat-run mode.
minutes set let on Heat-run mode.
- Let CA-210 to zero calibration and must has gap more
10cm from center of LCD module when adjustment.
- Press "ADJ" button of service remocon and select
"7.White-Balance" in "Ez-Adjust" then press "
▶
"
button of navigation key.
(When press "
▶
" button then set will go to full white
mode)
- Adjust at three mode (Cool, Medium, Warm)
- If "cool" mode
- If "cool" mode
Let B-Gain to 192 and R, G, B-Cut to 64 and then
control R, G gain adjustment High Light adjustment.
control R, G gain adjustment High Light adjustment.
- If "Medium" and "Warm" mode
Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment.
control G, B gain adjustment High Light adjustment.
- All of the three mode
Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment.
control G, B gain adjustment High Light adjustment.
- With volume button (+/-) you can adjust.
- After all adjustment finished, with Enter (
- After all adjustment finished, with Enter (
■
key) turn
to Ez-Adjust mode. Then with ADJ button, exit from
adjustment mode
adjustment mode
Attachment: White Balance adjustment coordination and color
temperature.
temperature.
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Using CS-1000 Equipment.
- COOL : T=11000K,
△
uv=0.000, x=0.276 y=0.283
- MEDIUM : T=9300K,
△
uv=0.000, x=0.285 y=0.293
- WARM : T=6500K,
△
uv=0.000, x=0.313 y=0.329
5.4 EYE-Q Function check.
1) Turn on TV
2) Press EYE Key of Adj R/C
3) Cover the Eye Q II sensor on the front of the using your
2) Press EYE Key of Adj R/C
3) Cover the Eye Q II sensor on the front of the using your
hand and wait for 6 seconds
4) Confirm that R/G/B va;ie os ;pwer tjam 10 of the ‘Raw
Data (Sensor data, Back light)”. If after 6 seconds, R/G/B
value is not lower than 10, re[;ace EYE Q II sensor.
value is not lower than 10, re[;ace EYE Q II sensor.
5) Remove your hand from the EYE Q II sensor and wait for
6 sencond
6) Confirm that “OK” pop up.
If change is not seen, replace EYE Q II sensor
5.5 Test of RS-232C control
Press IN-Start button of service remocon then set the “4.Baud
rate” to 15200, Then check RS-232C control and
rate” to 15200, Then check RS-232C control and
5.6 Selection of Country option.
• Models: All models which use LA75A Chassis (See the first
page.)
• Press “In-Start” button of Service Remocon, then enter the
“Option” Menu with “PIP CH-“ Button
• Select one of these three (USA, CANADA, MEXICO)
defends on its market using “Vol. +/-“button.
* Caution : Don’t push The Instop Key ater completing the
function inspection.
6. GND and ESD Testing
6.1 Prepare GND and ESD Testing.
• Check the connection between set and power cord
6.2 Operate GND and ESD auto-test.
• Fully connected (Between set and power cord) set enter
the Auto-test sequence.
• Connect D-Jack AV jack test equipment.
• Turn on Auto-controller(GWS103-4)
• Start Auto GND test.
• If its result is NG, then notice with buzzer.
• If its result is OK, then automatically it turns to ESD Test.
• Operate ESD test
• If its result is NG, then notice with buzzer.
• If its result is OK, then process next steps. Notice it with
• Turn on Auto-controller(GWS103-4)
• Start Auto GND test.
• If its result is NG, then notice with buzzer.
• If its result is OK, then automatically it turns to ESD Test.
• Operate ESD test
• If its result is NG, then notice with buzzer.
• If its result is OK, then process next steps. Notice it with
Good lamp and STOPER Down.
6.3 Check Items.
• Test Voltage
- GND: 1.5KV/min at 100mA
- Signal: 3KV/min at 100mA
- Signal: 3KV/min at 100mA
• Test time: just 1 second.
• Test point
• Test point
- GND test: Test between Power cord GND and Signal
cable metal GND.
- ESD test: Test between Power cord GND and Live and
neutral.
• Leakage current: Set to 0.5mA(rms)
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