DOWNLOAD LG 32LN549E / 32LP620H (CHASSIS:LB3AZ) Service Manual ↓ Size: 5.3 MB | Pages: 40 in PDF or view online for FREE

Name: LG 32LN549E / 32LP620H (CHASSIS:LB3AZ)
Brand: LG
SKU: 80110
Rating: 4 (1 reviews)

Model: 32LN549E 32LP620H (CHASSIS:LB3AZ)
Pages: 40
Size: 5.3 MB
Type: PDF
Document: Service Manual
Brand: LG
Device: TV / LCD
File: 32ln549e-32lp620h-chassis-lb3az.pdf
Date: 2018-11-20

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LG 32LN549E / 32LP620H (CHASSIS:LB3AZ) Service Manual ▷ View online

- 10 -
* 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)
3.1. ADC Process
(1) ADC
- Enter Service Mode by pushing "ADJ" key,
Calibration".
<Caution>  Using  "P-ONLY"  key  of  the Adjustment  remote 
control, power on TV.
If there is no Component Input, disappear “ADC Comp” message.
* ADC Calibration Protocol (RS232)
Adjust Sequence
▪ aa 00 00 [Enter Adjust Mode]
▪ xb 00 40 [Component1 Input (480i)]
▪ ad 00 10 [Adjust 480i Comp1]
▪ xb 00 60 [RGB Input (1024*768)]
▪ ad 00 10 [Adjust 1024*768 RGB]
▪ aa 00 90 End Adjust mode
* Required equipment : Adjustment remote control.
3.2. Function Check
3.2.1. Check display and sound 
■ Check Input and Signal items. (cf. work instructions) 
1. TV
2. AV
3. COMPONENT (480i)
4. RGB (PC : 1024 x 768 @ 60hz)
5. HDMI
6. PC Audio In 
* Display and Sound check is executed by Remote controller
Caution :  Not to push the INSTOP key after completion if the 
function inspection.
4. Total Assembly line process
4.1. Adjustment Preparation
▪ W/B Equipment condition
CA210
: CCFL/EEFL -> CH9, Test signal: Inner pattern(80IRE)
  LED -> CH14, Test signal: Inner pattern(80IRE)
▪  Above 5 minutes H/run in the inner pattern. (“power on” key 
of adjust remote control)
▪  Edge  LED  W/B Table  in  process  of  aging  time  (Only  LGD 
Edge LED Module except AUO, CMI, IPS Module) 
  CA210 : CH 14, Test signal : Inner pattern (80IRE)
Normal line
* Check the Table Data and the Spec after H/R
Aging chamber
* Check the Table Data and the Spec after H/R
NO
Item
CMD 1 CMD 2 Data 0
Enter Adjust 
MODE
Adjust 
‘Mode In’
A
A
0
0 When transfer the  ‘Mode In’, 
Carry the command.
ADC adjust ADC Adjust
A
D
1
0 Automatically adjustment
(The use of a internal pattern)
Mode
Temp
Coordinate spec
Cool
13,000 K
X=0.271 (±0.002)
Y=0.270 (±0.002)
<Test Signal>
Inner pattern
(204gray,
80IRE)
Medium
9,300 K
X=0.285 (±0.002)
Y=0.293 (±0.002)
Warm
6,500 K
X=0.310 (±0.002)
Y=0.325 (±0.002)
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 
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
8. ADC Calibration   
►
9. White Balance
10. 10 Point WB
11. Test Pattern
12. EDID D/L
13. Sub B/C
14. Ext. Input Adjust
ADC Calibration
ADC Comp 480i
ADC Comp 1080p
ADC RGB
Start
NG
NG
NG
Reset

- 11 -
*  Connecting picture of the measuring instrument
(On Automatic control)
Inside PATTERN is used when W/B is controlled. Connect to 
auto controller or push Adjustment R/C P-ONLY → Enter the 
mode of White-Balance, the pattern will come out.
* Auto-control interface and directions
(1)  Adjust in the place where the influx of light like floodlight 
around is blocked. (illumination is less than 10 lux).
(2)  Adhere closely the Color analyzer(CA210) to the module 
less than 10 cm distance, keep it with the surface of the 
Module and Color analyzer's prove vertically.(80° ~ 100°).
(3) Aging time
-  After aging start, keep the power on (no suspension of 
power supply) and heat-run over 5 minutes.
-  Using 'no signal' or 'POWER ONLY' or the others, check 
the back light on.
▪ Auto adjustment Map(using RS-232C to USB cable)
RS-232C COMMAND
[CMD  ID  DATA]
  Wb 
00  00 
White Balance Start
  Wb 
00  ff 
White Balance End
<Caution>
Color Temperature : COOL, Medium, Warm. 
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and 
adjust  other  two  lower  than  C0.(When  R/G/B  Gain  are  all 
C0, it is the FULL Dynamic Range of Module)
* Manual W/B process using adjust Remote control.
▪ After enter Service Mode by pushing "ADJ" key,
▪  Enter  White  Balance  by  pushing  "►"  key  at  "7.  White 
Balance". 
*  After you finished all adjustments, Press  "In-start" key and 
compare Tool option and Area option value with its BOM, if 
it  is  correctly  same  then  unplug  the AC  cable.  If  it  is  not 
same, then correct it same with BOM and unplug AC cable.
For correct it to the model's module from factory Jig model.
*  Push  the  "IN  STOP"  key  after  completing  the  function 
inspection.
4.2. DDC EDID Write (RGB 128Byte )
■ Connect D-sub Signal Cable to D-Sub Jack.
■  Write  EDID  DATA  to  EEPROM(24C02)  by  using  DDC2B 
protocol.
■ Check whether written EDID data is correct or not.
*  For Service main Assembly, EDID have to be downloaded to 
Insert Process in advance.
4.3. DDC EDID Write (HDMI 256Byte)
■ Connect HDMI Signal Cable to HDMI Jack.
■  Write  EDID  DATA  to  EEPROM(24C02)  by  using  DDC2B 
protocol.
■ Check whether written EDID data is correct or not.
*  For Service main Assembly, EDID have to be downloaded to 
Insert Process in advance.
4.4. EDID data
(1) All Data : HEXA Value
(2) Changeable Data :
    *: Serial No : Controlled / Data:01
    **: Month : Controlled / Data:00
    ***: Year : Controlled
    ****: Check sum
4.4.1. Auto Download
■ After enter Service Mode by pushing “ADJ” key,
■ Enter EDID D/L mode.
■ Enter “START” by pushing “OK” key. 
* Caution :  Never  connect  HDMI  &  D-sub  Cable  when  EDID 
downloaded.
Full White Pattern
CA-210
COLOR
ANALYZER
TYPE : CA-210
RS-232C Communication
RS-232C COMMAND
[CMD ID DATA]
MIN
CENTER
(DEFAULT)
MAX
Cool
Mid
Warm
Cool Mid Warm
R Gain jg
Ja
jd
00
172
192 192
192
G Gain jh
Jb
je
00
172
192 192
192
B Gain ji
Jc
jf
00
192
192 172
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
8. ADC Calibration
9. White Balance
10. 10 Point WB
11. Test Pattern
12 EDID D/L
13. Sub B/C
14. Ext. Input Adjust
Whit Balance
Color Temp. 
◄
 
►
R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Test-Pattern
Backlight
Reset 
      To Set
Cool
172
192
192
64
64
64
ON
100
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
8. ADC Calibration
9. White Balance
10. 10 Point WB
11. Test Pattern
12. EDID D/L 
 
►
13. Sub B/C
14. Ext. Input Adjust
EDID
  HDMI1 
NG
  HDMI2 
NG
  HDMI3 
NG
  RGB 
NG
Start
Reset
EDID
  HDMI1 
OK
  HDMI2 
OK
  HDMI3 
OK
  RGB 
OK
Start
Reset

- 12 -
* EDID data and Model option download (RS232)
4.4.2. Manual Download
<Caution>
(1) Use the proper signal cable for EDID Download
     - Analog EDID : Pin3 exists
     - Digital EDID : Pin3 exists
(2) Never connect HDMI & D-sub Cable at the same time.
(3) Use the proper cables below for EDID Writing.
(4)  Download HDMI1, HDMI2 separately because HDMI1 is 
different from HDMI2.
(1) FHD RGB EDID data
(2) FHD HDMI EDID data
(3) HD RGB EDID data
(4) HD HDMI EDID data
(5) Detail EDID Options are below
a. Product ID
b. Serial No: Controlled on production line.
c. Month, Year: Controlled on production line:
ex) Week : '01' -> '01'
Year : '2012' -> '16' fix
d. Model Name(Hex):
cf) TV set’s model name in EDID data is below. 
e. Checksum: Changeable by total EDID data.
NO
Item
CMD 1 CMD 2 Data 0
Enter download
MODE
Download
‘Mode In’
A
A
0
0 When transfer the ‘Mode 
In’, Carry the command.
EDID data and
Model option
download
Download
A
E
00 10
Automatically download
(The use of a internal 
data)
For Analog
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
No.
Item
Condition
Hex Data
1
Manufacturer ID
GSM
1E6D
2
Version
Digital : 1
01
3
Revision
Digital : 3
03
0
1
2
3
4
5
6
7
8
9
A B C D E
F
00 00 FF FF FF FF FF FF 00 1E 6D
a
b
10
c
01 03 68 10 09 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 81 80 61 40 45 40 31 40 01 01
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 A0 5A 00 00 00 1E 01 1D 00 72 51 D0 1E 20
50 6E 28 55 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20
d
70
d
00 e
80 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
90 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
A0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
B0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
C0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
D0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
E0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
F0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0
1
2
3
4
5
6
7
8
9
A B C D E
F
00 00 FF FF FF FF FF FF 00 1E 6D
a
b
10
c
01 03 80 10 09 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 71 4F 81 80 01 01 01 01 01 01
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 A0 5A 00 00 00 1E 1B 21 50 A0 51 00 1E 30
50 48 88 35 00 A0 5A 00 00 00 1C 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20
d
70
d
01 e
80 02 03 26 F1 4E 10 1F 84 13 05 14 03 02 12 20 21
90 22 15 01 26 15 07 50 09 57 07
f
A0
f
E3 05 03 01 01 1D 80 18 71 1C 16 20 58 2C
B0 25 00 A0 5A 00 00 00 9E 01 1D 00 72 51 D0 1E 20
C0 6E 28 55 00 A0 5A 00 00 00 1E 02 3A 80 18 71 38
D0 2D 40 58 2C 45 00 A0 5A 00 00 00 1E 01 1D 00 BC
E0 52 D0 1E 20 B8 28 55 40 A0 5A 00 00 00 1E 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e
MODEL NAME
HEX
EDID Table
DDC Function
HD/FHD Model
0001
01 00
Analog/Digital
Model name
MODEL NAME(HEX)
LG TV
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20  (LG TV)
EDID C/S data
FHD
HD
HDMI
RGB
HDMI
RGB
Check sum
(Hex)
Block 0
43
5C
A4
A5
Block 1
25 (HDMI1)
-
5B (HDMI1)
15 (HDMI2)
4B (HDMI2)
5 (HDMI3)
3B (HDMI3)

- 13 -
f. Vendor Specific(HDMI)
   - FHD
   - HD
4.5. Outgoing condition Configuration
■  When  pressing  IN-STOP  key  by  Service  remote  control, 
Red  LED  are  blinked  alternatively. And  then  automatically 
turn off. (Must not AC power OFF during blinking)
4.6. HI-POT Test
4.6.1. HI-POT auto-check preparation
- Check the POWER cable and SIGNAL cable insertion condition
4.6.2. HI-POT auto-check
(1)  Pallet moves in the station. (POWER CORD / AV CORD is 
tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
-  If Test is passed, GOOD Lamp on and move to next proc-
ess automatically.
4.6.3. Checkpoint
(1) Test voltage
- Touchable Metal : 3 KV / min at 100 mA
- SIGNAL : 3 KV / min at 100 mA
(2) TEST time: 1 second. (case : mass production )
(3) TEST POINT
- Touchable Metal => LIVE & NEUTRAL : Touchable Metal.
- SIGNAL => LIVE & NEUTRAL : SIGNAL.
5. Model name & Serial number D/L
▪ Press "Power on" key of service remote control.
(Baud rate : 115200 bps)
▪ Connect RS232 Signal Cable to RS-232 Jack.
▪ Write Serial number by use RS-232.
▪  Must check the serial number at the Diagnostics of SET UP 
menu. (Refer to below)
5.1. Signal Table
CMD : A0h
LENGTH : 85~94h (1~16 bytes)
ADH : EEPROM Sub Address high (00~1F)
ADL : EEPROM Sub Address low (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 +...+ Data_n
Delay : 20ms
5.2. Comand Set
* Description
FOS Default write : <7mode data> write
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0, 
Phase
Data write :  Model Name and Serial Number write in EEPROM,.
5.3. Method & notice
(1) Serial number D/L is using of scan equipment.
(2)  Setting  of  scan  equipment  operated  by  Manufacturing 
Technology Group.
(3)  Serial number D/L must be conformed when it is produced 
in production line, because serial number D/L is mandatory 
by D-book 4.0.
* Manual Download(Model Name and Serial Number)
If  the  TV  set  is  downloaded  by  OTA  or  Service  man, 
sometimes  model  name  or  serial  number  is  initialized.(Not 
always)
There  is  impossible  to  download  by  bar  code  scan,  so  It 
need Manual download.
1) Press the "Instart" key of Adjustment remote control.
2) Go to the menu "5.Model Number D/L" like below photo.
3)  Input  the  Factory  model  name  or  Serial  number  like 
photo.
Input
Model name(HEX)
HDMI1
67030C001000B82D
HDMI2
67030C002000B82D
HDMI3
67030C003000B82D
Input
Model name(HEX)
HDMI1
65030C001000011D
HDMI2
65030C002000011D
HDMI3
65030C003000011D
CMD
LENGTH
ADH
ADL
DATA_1
. . .
Data_n
CS
DELAY
Adjust mode
CMD(hex)
LENGTH(hex)
Description
EEPROM WRITE
A0h
84h+n
n-bytes Write (n = 1~16)

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