DOWNLOAD LG 32LS679C (CHASSIS:LD21B) Service Manual ↓ Size: 6.57 MB | Pages: 53 in PDF or view online for FREE

Model
32LS679C (CHASSIS:LD21B)
Pages
53
Size
6.57 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32ls679c-chassis-ld21b.pdf
Date

LG 32LS679C (CHASSIS:LD21B) Service Manual ▷ View online

- 11 -
3.1. ADC Process
(1) ADC
- Enter Service Mode by pushing "ADJ" key,
Calibration".
<Caution>  Using  "power  on"  key  of  the Adjustment  remote 
control, power on TV.
* 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)] (only LD21B)
▪ ad 00 10 [Adjust 1024*768 RGB] (only LD21B)
▪ aa 00 90 End Adjust mode
* Required equipment : Adjustment remote control.
3.2. EDID Download
▪ After enter Service Mode by pushing "ADJ" key.
▪ Enter EDID D/L menu.
▪ Enter "START" by pushing "OK" key.
<Caution>  Never connect HDMI && D-sub cable when EDID 
downloaded.
3.3. EDID data
(1) FHD RGB EDID data (RGB input : only LD21B support)
(2) FHD HDMI EDID data
(3) 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.
f. Vendor Specific(HDMI)
EZ ADJUST
0. Tool Option1
1. Tool Option2  
2. Tool Option3  
3. Tool Option4  
4. Tool Option 5 
5. Country Group
6. Area Option
 
7. ADC Calibration  
8. White Balance  
9. 10 Point WB  
10. Test Pattern 
11. EDID D/L  
12. Sub B/C  
13. Touch Sensitivity Setting
 
ADC Calibration
ADC Comp 480i
NG
ADC Comp 1080p
NG
ADC RGB
NG
Start
Reset
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)
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 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
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 66 21 50 B0 51 00 1B 30
50 40 70 36 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
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 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
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 66 21 50 B0 51 00 1B 30
50 40 70 36 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
01
e
80 02 03 22 F1 4E 10 9F 04 13 05 14 03 02 12 20 21
90 22 15 01 26 15 07 50 09 57 07
f
A0
f
01 1D 80 18 71 1C 16 20 58 2C 25 00 20 C2
B0 31 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55 00
C0 20 C2 31 00 00 1E 02 3A 80 18 71 38 2D 40 58 2C
D0 45 00 A0 5A 00 00 00 1E 01 1D 00 BC 52 D0 1E 20
E0 B8 28 55 40 C4 8E 21 00 00 1E 00 00 00 00 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e
EZ ADJUST
0. Tool Option1
1. Tool Option2  
2. Tool Option3  
3. Tool Option4  
4. Tool Option 5 
5. Country Group
6. Area Option
 
7
.
 
ADC Calibration
 
8. White Balance  
9. 10 Point WB  
10. Test Pattern 
11
. EDID D/L
 
12. Sub B/C  
13. Touch Sensitivity Setting
 
EDID D/L
HDMI1
HDMI2
NG
HDMI3
NG
RGB
NG
NG
Start
Reset
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(8 Bit)
HDMI
RGB
Check sum
(Hex)
Block 0
43
5C
Block 1
25 (HDMI1)
-
15 (HDMI2)
05 (HDMI3)
Input
Model name(HEX)
HDMI1
67030C001000801E
HDMI2
67030C002000801E
HDMI3
67030C003000801E
- 12 -
3.4 Function Check
- Check display and sound 
■ Check Input and Signal items.
1) TV
2) AV (SCART / CVBS)
3) COMPONENT (480i)
4)  RGB (PC : 1024 x 768 @ 60hz) (* RGB input : LD21B 
only support)
5) HDMI
6) PC Audio In (* except LD21A chassis model)
* Display and Sound check is executed by Remote control.
<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)
▪  If it is executed W/B adjustment in 2~3 minutes H/run, it is 
adjusted by Target data
▪  Edge LED W/B Table in process of time (LGD module & 65” 
AUO module)
*  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  POWER  ON  → 
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)
Mode
Temp
Coordinate spec
Target
Cool
13,000k X=0.269 (±0.002)
Y=0.273 (±0.002)
X=0.271
Y=0.276 <Test Signal>
Inner pattern
(204gray,
80IRE)
Medium
9,300k X=0.285 (±0.002)
Y=0.293 (±0.002)
X=0.287
Y=0.296
Warm
6,500k X=0.313 (±0.002)
Y=0.329 (±0.002)
X=0.315
Y=0.332
GP4
Aging 
time
(Min)
Cool
Medium
Warm
X
y
x
y
x
y
269
273
285
293
313
329
1
0-2
280
287
296
307
320
337
2
3-5
279
285
295
305
319
335
3
6-9
277
284
293
304
317
334
4
10-19
276
283
292
303
316
333
5
20-35
274
280
290
300
314
330
6
36-49
272
277
288
297
312
327
7
50-79
271
275
287
295
311
325
8
80-119
270
274
286
294
310
324
9
Over 120
269
273
285
293
309
323
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
- 13 -
* Manual W/B process using adjust Remote control.
▪ After enter Service Mode by pushing "ADJ" key,
▪  Enter  White  Balance  by  pushing  "►"  key  at  "8.  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. And  Mechanical  Power  Switch  must  be  set 
“ON”.
4.2. EYE-Q function check
(1) Turn on TV.
(2) Press EYE key of Adjustment remote control.
(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  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.
(5)  Remove your hand from the Eye Q II sensor and wait for 6 
seconds.
(6)  Confirm  that  "ok"  pop  up.  If  change  is  not  seen,  replace 
Eye Q II sensor.
4.3. Outgoing condition Configuration
■  When  pressing  IN-STOP  key  by  SVC  remocon,  Red  LED 
are blinked alternatively. And then automatically turn off.
(Must not AC power OFF during blinking)
5. HI-POT Test
5.1. HI-POT auto-check preparation
-  Check the POWER cable and SIGNAL cable insertion condition
5.2. 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.
5.3. Checkpoint
(1) Test voltage
- Touchable Metal : 3KV / min at 100mA
- SIGNAL : 3KV / min at 100mA
(2) TEST time: 1 second. (case : mass production )
(3) TEST POINT
- Touchable Metal => LIVE & NEUTRAL : Touchable Metal.
- SIGNAL => LIVE & NEUTRAL : SIGNAL.
6. Model name & Serial number D/L
▪ Press “Power on” key of service remote control.
(Baud rate : 115200 bps)
▪ Connect USB to RS232 Signal Cable to USB Jack.
▪ Write Serial number.
▪  Must  check  the  serial  number  at  the  Diagnostics  of  SET  UP 
menu.(Refer to below)
6.1. 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
6.2. 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,.
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. Area Option
7. ADC Calibration
8. White Balance    
         ►
9. 10 Point WB
10. Test Pattern
11. EDID D/L
12. Sub B/C
13. Touch Sensitivity Setting
White Balance
Color Temp.
R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Test-Pattern
Backlight
Reset
Cool
172
172
192
64
64
64
ON
100
To Set
 
 
 
 
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)
- 14 -
6.3. 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 "6.Model Number D/L" like below photo.
3) Input the Factory model name or Serial number like photo.
4)  Check the model name Instart menu. → Factory name displayed.
    (ex 32LV3400-ZG)
5)  Check  the  Diagnostics.(DTV  country  only)  →  Buyer  model 
displayed.(ex 32LV3400-ZG)
7. MAC Address & CI+ key download
7.1 MAC Address 
7.1.1 Equipment & Condition
▪ Play file : Serial.exe
▪ MAC Address edit
▪ Input Start / End MAC address 
7.1.2 Download method
(1) Communication Prot connection
Connection  :  PCBA  (USB  Port) 
  USB  to  Serial Adapter 
(UC-232A) 
 RS-232C cable 
 PC(RS-232C port) 
* Caution :  LJ21*  chassis  support  only  UC-232A  driver.  (only 
use this one. ) 
(2) MAC Address & CI+ Key Download
▪  Set CI+ Key path Directory at Start Mac & CI+ Download 
Programme
▪ Com 1,2,3,4 and 115200(Baudrate)
▪ Port connection button click(1)
▪ Push the (2) MAC Address write.
▪ At success Download, check the OK (3)
▪ Start CI+ Key Download, Push the (4)
▪ Check the OK or NG
GP4_LOW
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