LG 47SL85-UA (CHASSIS:LA92M) Service Manual ▷ View online
•HDMI III [C/S: 1DAA]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version 3
Block Type: CEA EDID Timing Extension Version 3
•HDMI IV [C/S: 1D9A]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version 3
Block Type: CEA EDID Timing Extension Version 3
•RGB [C/S: 36FF]
EDID Block 0, Bytes 0-127 [00H-7FH]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
6. Final Assembly adjustment
6.1 White Balance adjstment
6.1.1 Overview
•W/B adj.: Objective & How-it-works
- Objective: To reduce each Panel’s W/B deviation
- How-it-works: When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range. In order to
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192, and the other two is lowered to find the
desired value.
- Objective: To reduce each Panel’s W/B deviation
- How-it-works: When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range. In order to
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192, and the other two is lowered to find the
desired value.
6.1.2 Equipment
1) Color Analyzer : CA-210 (NCG: CH 9 / WCG: CH12 /LED
Module:CH14)
2) Adjustment Computer (During auto adj., RS-232C protocol
is needed)
3) Adjustment R/C
4) Video Signal Generator MSPG-925F 720p/216Gray
(Model:217, Pattern:78)
-> Only when internal pattern is not available
Module:CH14)
2) Adjustment Computer (During auto adj., RS-232C protocol
is needed)
3) Adjustment R/C
4) Video Signal Generator MSPG-925F 720p/216Gray
(Model:217, Pattern:78)
-> Only when internal pattern is not available
• Color Analyzer Matrix should be calibrated using CS-1000
6.1.3 Equipment connection map
- 13 -
Color Analyzer
Computer
RS-232C
# Pattern Generator
* If TV internal pattern is used,not needed
Signal Source
Probe
RS-232C
RS-232C
- 14 -
6.1.4 Adj. Command (Protocol)
•Protocol
•Protocol
<Command Format>
- LEN: Number of Data Byte to be send
- CMD: Command
- VAL: FOS Data
- CS: Checksum of sent Data
- A: Acknowledge
- CMD: Command
- VAL: FOS Data
- CS: Checksum of sent Data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
•RS-232C Command used during auto-adj.
Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
jb 00 c0
...
...
wb 00 1f -> Gain adj. complete
*(wb 00 20(Start), wb 00 2f(End)) -> Off-set adj.
wb 00 ff -> End white balance auto-adj.
6.1.5 Adj. method
6.1.5.1 Auto adj. method
6.1.5.1 Auto adj. method
1) Set TV in adj. mode using POWER On Key
2) Zero calibrate probe then place it on the center of the
2) Zero calibrate probe then place it on the center of the
Display
3) Connect Cable(RS-232C)
4) Select mode in adj. Program and begin adj.
5) When adj. is complete (OK Sign), check adj. status per
4) Select mode in adj. Program and begin adj.
5) When adj. is complete (OK Sign), check adj. status per
mode (Warm, Medium, Cool)
6) Remove probe and RS-232C cable to complete adj.
• Adj. must begin w/ command “wb 00 00”, and end w/“wb 00
ff”and adj. offset if needed.
6.1.5.2 Manual adj. method
Dynamic contrast : off
Dynamic color : off
OPC : Off
Energy saving mode : Off
Dynamic color : off
OPC : Off
Energy saving mode : Off
1) Set TV Picture Mode to Standard and in Advanced Control,
set Dynamic Contrast and Color ‘Off’,OPC ‘OFF’.
2) Set TV in adj. mode using POWER On Key
3) Press ADJ key -> EZ adjust using adj. R/C
4) Using CH + / - KEY, select 10.TEST PATTERN then press
3) Press ADJ key -> EZ adjust using adj. R/C
4) Using CH + / - KEY, select 10.TEST PATTERN then press
Enter to place in HEAT RUN mode and wait for 30
minutes. Zero calibrate the probe of Color Analyzer, then
place it on the center of LCD module within 10 cm of the
surface.
minutes. Zero calibrate the probe of Color Analyzer, then
place it on the center of LCD module within 10 cm of the
surface.
5) Press ADJ key -> 6. White-Balance then press the cursor
to the right (KEY
)
(When
is pressed Full White internal pattern will be
displayed)
6) One of R Gain / G Gain / B Gain should be fixed at 192,
and the rest will be lowered to meet the desired value.
7) Adjustment is performed in COOL, MEDIUM, WARM 3
modes of color temperature
• If internal pattern is not available, use RF input(Full white
216 gray) In EZ Adjustment menu 6.White Balance, you can
select one of 2 options: Test pattern ON, Test pattern OFF.
Default is “ON” By selecting “OFF”, you can adjust using RF
signal.
select one of 2 options: Test pattern ON, Test pattern OFF.
Default is “ON” By selecting “OFF”, you can adjust using RF
signal.
• Adjustment condition and cautionary items
1) Lighting condition in surrounding area Surrounding lighting
should be lower than 10 lux.
Try to isolate adj. area into dark surrounding.
2) Probe location
- Color Analyzer (CA-210) probe should be within 10cm
and perpendicular of the module surface (80°~ 100°)
- In case of LCD, B/L on should be checked using no signal
or Full white Pattern
6.1.6 Reference
(White Balance adj. coordinate and color temperature)
• Luminance: Full white 216 Gray
• Standard color coordinate and temperature using CA-
210(CH 09)
Coordinate
Mode
x y
Temp uv
∆
Cool 0.269
0.273 11000K 0.0000
Medium 0.285 0.293
9300K
0.0000
Warm 0.313 0.329
6500K 0.0000
START 6E A 50 A
LEN A 03 A
CMD A 00 A
VAL A CS A
STOP
CMD
ID DATA
Explanation
wb
00
00
Begin White Balance adj.
wb
00
ff
End White Balance adj.
(internal pattern disappears)
Coordinate
Mode
x y
Temp uv
∆
Cool 0.269±0.002 0.273±0.002 11000K 0.0000
Medium 0.285±0.002 0.293±0.002
9300K
0.0000
Warm 0.313±0.002 0.329±0.002 6500K 0.0000
- 15 -
6.2 Option selection per country
6.2.1 Overview
America due to rating
• Applied model: LA92B Chassis applied None USA
Model(Canada, Mexico)
6.2.2 Method
1) Press ADJ key on the Adjustment R/C, then select Country
Group Menu
2) Depending on destination, select KR or US, then on the
lower option, select US, CA, MX. Selection is done using +,
- KEY
- KEY
6.3 EYE-Q function check
Step 1) Turn on TV
Step 2) Press EYE key of Adj. R/C
Step 3) Cover the Eye Q II sensor on the front of the using
Step 2) Press EYE key of Adj. R/C
Step 3) Cover the Eye Q II sensor on the front of the using
your hand and wait for 6 seconds
Step 4) Confirm that R/G/B value is lower than 10 of the “Raw
Data (R: G: B: )” .
If after 6 seconds, R/G/B value is not lower than 10,
replace Eye Q II sensor
replace Eye Q II sensor
Step 5) Remove your hand from the Eye Q II sensor and wait
for 6 seconds
Step 6) Confirm that “B. Light(xxx)” value increases from 0.
If change is not seen, replace Eye Q II sensor
< step 2> < step 3> < step 4>
< step 5> < step 6>
6.4 Ship-out (Default) mode check (Instop)
• After final inspection, press In-Stop key of the Adj. R/C and
check that the unit goes to Stand-by mode.
7.1 Method
- Check that Power Cord is fully inserted to the set
(If loose, re-insert)
- Unit w/ fully inserted power cord and A/V arrives to the auto-
check process.
- Connect D-terminal AV JACK TESTER
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST
- If NG, Buzzer will sound to inform the operator
- If OK, changeover to I/P check automatically
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST
- If NG, Buzzer will sound to inform the operator
- If OK, changeover to I/P check automatically
(Remove CORD,A/V from AV Jack Box)
- Perform I/P test
- If NG, Buzzer will sound to inform the operator
- If OK, Good lamp will lit up and the stopper will allow the
- If NG, Buzzer will sound to inform the operator
- If OK, Good lamp will lit up and the stopper will allow the
pallet to move on to next process.
7.2 Checkpoint
NEUTRAL
• LEAKAGE CURRENT: At 0.5mArms
Green Eye-Check
Sensor Data:
1
Backlight: 0
O.K
Green Eye-Check
Sensor Data: 215
Backli ght : 100
- 16 -
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
A2
LV1
A10
LV2
300
320
120
121
500
510
910
900
400
200
200N
200T
803
802
550
806
801
804
805
81
1
810
530
540
812
813
520
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