DOWNLOAD LG 47LA6400 / 47LA640Y (CHASSIS:LB33B) Service Manual ↓ Size: 10.6 MB | Pages: 119 in PDF or view online for FREE

Model
47LA6400 47LA640Y (CHASSIS:LB33B)
Pages
119
Size
10.6 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
47la6400-47la640y-chassis-lb33b.pdf
Date

LG 47LA6400 / 47LA640Y (CHASSIS:LB33B) Service Manual ▷ View online

- 16 -
4.2.5. 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 to USB)
4) Select mode in adj. Program and begin adj.
5)  When adj. is complete (OK Sign), check adj. status pre 
mode. (Warm, Medium, Cool)
6) Remove probe and RS-232C cable to complete adj.
▪  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 adjustment. 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  10  cm  of  the 
surface.
3)  Press ADJ key → EZ adjust using adj. R/C → 7. White-
Balance then press the cursor to the right(key ►).
(When right key(►) is pressed 204 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)  Adjustment  is  performed  in  COOL,  MEDIUM,  WARM  3 
modes of color temperature.
 ▪  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 204 Gray pattern.
▪ Adjustment 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.
4.2.6.  Reference (White balance Adj. coordinate and 
color temperature)
▪ Luminance : 204 Gray
▪ Standard color coordinate and temperature using CS-1000
  (over 26 inch)
▪ Standard color coordinate and temperature using CA-210(CH 14)
4.2.7. LED White balance table
-  EDGE  LED  module  change  color  coordinate  because  of 
aging time.
-  Apply  under  the  color  coordinate  table,  for  compensated 
aging time.
* Normal Line
[LN5xxx, LA6xxx, LA7xxx, LA8xxx]
*Aging Chamber
[LN5xxx, LA6xxx, LA7xxx, LA8xxx]
 
Mode
Coordinate
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
Coordinate
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
6500K 0.0000 
NC4.0
Aging 
time
(Min)
Cool
Medium
Warm
X
y
x
y
x
y
271
270
285
293
313
329
1
0-2
281 
287 
295
310
320
342
2
3-5
280 
285 
294
308
319
340
3
6-9
278 
284 
292
307
317
339
4
10-19
276 
281 
290
304
315
336
5
20-35
275 
277 
289
300
314
332
6
36-49
274 
274 
288
297
313
329
7
50-79
273 
272 
287
295
312
327
8
80-119
272 
271 
286
294
311
326
9
Over 120
271 
270 
285
293
310
325
NC4.0
Aging 
time
(Min)
Cool
Medium
Warm
X
y
x
y
x
y
271
270
285
293
313
329
1
0-5
280 
285 
294
308
319
340
2
6-10
276 
280 
290 
303 
315 
335 
3
11-20
272 
275 
286 
298 
311 
330 
4
21-30
269 
272 
283 
295 
308 
327 
5
31-40
267 
268 
281 
291 
306 
323 
6
41-50
266 
265 
280 
288 
305 
320 
7
51-80
265 
263 
279 
286 
304 
318 
8
81-119
264 
261 
278 
284 
303 
316 
9
Over 120
264 
260 
278 
283 
303 
315 
- 17 -
4.3. Local Dimming Function Check
Step 1) Turn on TV.
Step 2)  At  the  Local  Dimming  mode,  module  Edge  Backlight 
moving right to left Back light of IOP module moving.
Step 3) Confirm the Local Dimming mode.
Step 4) Press "exit" key.
4.4. Magic Motion Remote control test
- Equipment :  RF  Remote  control  for  test,  IR-KEY-Code 
Remocon for test
-  You  must  confirm  the  battery  power  of  RF-Remote  control 
before test(recommend that change the battery per every lot) 
- Sequence (test)
  a)  If you select the ‘start key(Wheel  Key)’ on the controller, 
you can pairing with the TV SET.
  b)  You can check the cursor on the TV Screen, when select 
the ‘Wheel Key’ on the controller 
  c)  You  must  remove  the  pairing  with  the TV  Set  by  select 
‘Mute Key’ on the controller
4.5. 3D function test
(Pattern Generator MSHG-600, MSPG-6100[Support HDMI1.4])
* HDMI mode NO. 872 , pattern No.83
(1)  Please input 3D test pattern like below. 
(2) When 3D OSD appear automatically, then select OK key.
(3) Don't wear a 3D Glasses, check the picture like below.
4.6. Wi-Fi Test
Step 1) Turn on TV
Step 2) Select Network Connection option in Network Menu.
Step 3) Select Start Connection button in Network Connection.
Step 4)  If the system finds any AP like blow PIC, it is working 
well.
- 18 -
5. Tool Option selection
▪  Method : Press "ADJ" key on the Adjustment remote control, 
then select Tool option.
6. Ship-out mode check(In-stop)
▪  After final inspection, press "IN-STOP" key of the Adjustment 
remote  control  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  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.
7.2. 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
8. Audio
Measurement condition:
(1) RF input: Mono, 1 KHz sine wave signal, 100 % Modulation
(2) CVBS, Component: 1 KHz sine wave signal 0.5 Vrms
(3) RGB PC: 1 KHz sine wave signal 0.7 Vrms
9. USB S/W Download(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 
Lower, it didn’t work.
 But  your  downloaded  version  is  Higher,  USB  data  is 
automatically detecting (Download Version High & Power 
only mode, Set is automatically Download)
(3) Show the message “Do not unplug!”
(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)
No.
Item
Min
Typ
Max
Unit
Remark
1.
Audio practical 
max Output, L/R
(Distortion=10% 
max Output)
9
10
12
W
EQ Off
AVL Off
Clear Voice Off
8.10
10.8
Vrms
2.
Speaker (8Ω
Impedance)
9
10
12
W
- 19 -
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