DOWNLOAD LG 55LX6500-TD (CHASSIS:LB03R) Service Manual ↓ Size: 11.31 MB | Pages: 110 in PDF or view online for FREE

Model
55LX6500-TD (CHASSIS:LB03R)
Pages
110
Size
11.31 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lx6500-td-chassis-lb03r.pdf
Date

LG 55LX6500-TD (CHASSIS:LB03R) Service Manual ▷ View online

- 13 -
4.3.5. Adj. method
(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
Display.
3) Connect Cable (RS-232C)
4) Select mode in adj. Program and begin adjustment.
5) When adj. is complete (OK Sing), check adj. status pre
mode. (Warm, Medium, Cool)
6) Remove probe and RS-232C cable to complete adj.
A
W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need.
(2) Manual adj. method
1) Set TV in Adj. mode using POWER ON
2) Zero Calibrate the probe of Color Analyzer, then place it
on the center of LCD module within 10cm of the surface.
3) Press ADJ key -> EZ adjust using adj. R/C -> 7. White-
Balance then press the cursor to the right (KEY 
G
).
(When KEY(
G
) is pressed 216 Gray internal pattern will
be displayed)
4) One of R Gain / G Gain / B Gain should be fixed at 192,
and the rest will be lowered to meet the desired value.
5) Adj. is performed in COOL, MEDIUM, WARM 3 modes
of color temperature.
A
If internal pattern is not available, use RF input. In EZ
Adj. menu 7.White Balance, you can select one of 2
Test-pattern: ON, OFF. Default is inner(ON). By
selecting OFF, you can adjust using RF signal in 216
Gray pattern.
A
Adj. condition and cautionary items
1) Lighting condition in surrounding area
Surrounding lighting should be lower 10 lux. Try to
isolate adj. area into dark surrounding.
2) Probe location
: Color Analyzer (CA-210) probe should be within 10
cm and perpendicular of the module surface (80° ~
100°)
3) Aging time
- After Aging Start, Keep the Power ON status during
5 Minutes.
- In case of LCD, Back-light on should be checked
using no signal or Full-white pattern.
4.3.6. Reference (White Balance Adj. coordinate
and color temperature)
A
Luminance : 216 Gray
A
Standard color coordinate and temperature using CS-1000
(over 26 inch)
A
Standard color coordinate and temperature using CA-210
(CH 14)
A
10 Point White Balance
A
Color coordinate Variation by Aging time.
4.4. 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
your hand and wait for 6 seconds
Step 4) Confirm that R/G/B value is lower than 10 of the “Raw
Data (Sensor data, Back light)”. If after 6 seconds,
R/G/B value is not lower than 10, 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 “ok” pop up. If change is not seen,
replace Eye Q II sensor.
Mode
Color Coordination
Temp
∆UV
x
y
COOL
0.269
0.273
13000 K
0.0000
MEDIUM
0.285
0.293
9300 K
0.0000
WARM
0.313
0.329
6500 K
0.0000
Mode
Color Coordination
Temp
∆UV
x
y
COOL
0.269 ± 0.002
0.273 ± 0.002 13000 K
0.0000
MEDIUM
0.285 ± 0.002
0.293 ± 0.002
9300 K
0.0000
WARM
0.313 ± 0.002
0.329 ± 0.002
6500 K
0.0000
Edge
Aging Time
Cool
Medium
Warm
LED
(Min.)
X
Y
X
Y
X
Y
269
273
285
293
313
329
1
0-2
280
291
296
311
319
340
2
3-5
278
288
294
308
317
338
3
6-9
276
285
292
305
315
335
4
10-15
274
282
290
302
313
332
5
20-35
273
279
289
299
312
329
6
36-49
270
276
287
296
310
326
7
50-79
269
273
286
293
308
323
8
Over 80
269
273
285
293
308
323
On / Off
On / Off
Pattern
Outer(default)
IRE
100
Luminance
130
Red(130.0 nit)
0
Green(130.0 nit)
0
Blue(130.0 nit)
0
- 14 -
4.5. Checking the function of Bluetooth
using adjusts Remote control
- Auto checking
• Auto checking is doing in “Power Only”.
• Checking the result of searched (check that is in list or not)
• Go out of checking mode pushing button “Exit”.
- Manual checking
• Push the button “Power Only” and “Exit”.
• Push the button hot key “Bluetooth”.
• Checking the result of searched (check that is in list or not)
• Go out of checking mode pushing button “Exit.
4.6. Check the function of Local Dimming
• Dimming checking is doing in “Power Only” using adjusts
Remote control.
• Push the button “Tilt”.
• Checking the function of Dimming refer to the picture at below.
• Push the button “Exit”.
* Edge LED models with local dimming
Press “TILT” key of the Adj. Remote control and check moving
patterns. The black bar patterns moves from left to right.
If local dimming function does not work. a whole screen
shows full white.
5.1. Method
- Check that Power Cord is fully inserted to the SET.
(If loose, re-insert)
- Unit fully inserted Power cord, Antenna cable and A/V
arrive to the auto-check process. 
- Connect D-terminal to 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.
(Remove CORD, A/V form 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
pallet to move on to next process.
5.2. Checkpoint
• TEST voltage
- GND: 1.5 KV / min at 100 mA
- SIGNAL: 3 KV / min at 100 mA
• TEST time: 1 second
• TEST POINT
- GND TEST = POWER CORD GND & SIGNAL CABLE
METAL GND
NEUTRAL
• LEAKAGE CURRENT: At 0.5 mArms
6. Audio
Measurement condition:
1. RF input: Mono, 1 KHz sine wave signal, 100 % Modulation
2. CVBS, Component: 1 KHz sine wave signal 0.4 Vrms
3. RGB PC: 1 KHz sine wave signal 0.7 Vrms
Local Dimming Demo (Edge LED Model)
Local Dimming Demo (IOP Model)
No.
Item
Min.
Typ.
Max.
Unit
1. 
Audio practical max
9.0
10.0
12.0
W
EQ Off
Output, L/R
AVL Off
(Distortion=10 %
8.5
8.9
9.8
Vrms
Clear Voice Off
max Output)
2. 
Speaker (8 Ω
10.0
15.0
W
EQ On
Impedance)
AVL On
Clear Voice On
- 15 -
7. USB S/W Download (option, Service only)
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
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” button.
3) Push in the number. (Each model has their number.)
8. 3D function test
(Pattern Generator MSPG-3233, HDMI mode No. 371, pattern
No. 81)
1) Please input 3D test pattern like below
2) Enter 3D mode, then select side by side
(If you don’t wear a 3D Glasses, you will see the picture
like below)
3) Put on the 3D Glasses, And block the right side of Glasses 
(LEFT:OPEN[TEST], RIGHT:CLOSED)
And check the middle sides of picture, RED -> normal,
others -> abnormal
4) Put on the 3D Glasses, And block the right side of Glasses 
(LEFT:CLOSED, RIGHT:OPEN[TEST])
And check the middle sides of picture, BLUE -> normal,
others -> abnormal
- 16 -
300
500
120
200
LV1
LV2
840
820
820
520
880
830
530
540
541
850
710
800
A13
A10
A21
A9
A5
A2
810
400
570
910
900
920
580
310
510
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.
IMPORTANT SAFETY NOTICE
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