DOWNLOAD LG 55LM7600 (CHASSIS:LC22E) Service Manual ↓ Size: 54.24 MB | Pages: 49 in PDF or view online for FREE

Model
55LM7600 (CHASSIS:LC22E)
Pages
49
Size
54.24 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lm7600-chassis-lc22e.pdf
Date

LG 55LM7600 (CHASSIS:LC22E) Service Manual ▷ View online

- 11 -
4.3 Model name & Serial number
 Download
4.3.1 Model name & Serial number D/L
b. check the menu on in-start
5. Manual Adjustment
5.1. ADC adjustment is not needed because\
 of OTP(Auto ADC adjustment)
5.2. EDID (The Extended Display Identific-
ation Data)    / DDC (Display Data Channel) 
download
5.2.1 Overview
It is a VESA regulation. A PC or a MNT will display an optimal
 resolution through information sharing without any
 necessity of user input. It is a realization of “Plug and Play”.
5.2.2 Equipment
▪ Since embedded EDID data is used, EDID download JIG, 
HDMI cable and D-sub cable are not need.
▪ Adjust remocon
5.2.3 Download method
1) Press Adj. key on the Adj. R/C, then select “12.EDID D/L”. 
By pressing Enter key, enter EDID D/L menu.
2) Select [Start] button by pressing Enter key, HDMI1 / HDMI2 / HDMI3
 / HDMI4 / RGB are Writing and display OK or NG.
 
 
■ Press “Power on” key of service remocon.(Baud rate : 
115200 bps)
■ Connect RS-232C Signal to USB Cable to USB.
■ Write Serial number by use USB port.
■ Must check the serial number at Instart menu. 
4.3.2  Method & notice
A. Serial number D/L is using of scan equipment.
B. Setting of scan equipment operated by Manufacturing
 Technology Group.
C. 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.
a. Press the ‘instart’ key of ADJ remote controller.
b. Go to the menu ‘5.Model Number D/L’ like below photo.
c. Input the Factory model name(ex 47LM6200-CC) or Serial 
number like photo.
d. Check the model name Instart menu -->Factory name displayed
 (ex 47LM62000-CA)
e. Check the Diagnostics (DTV country only) --> Buyer model
 displayed (ex 47LM6200-CC)
4.4 WIFI MAC ADDRESS CHECK 
a. Using RS232 Command
 
Command
 
Set ACK
 
T ransmission
 
[A][l][][Set ID][][20][Cr]
 
[O][K][x]    or    [N][G]
 
 
For Analog EDID
 
For HDMI EDID
 
D-sub to D-sub 
DVI-D to HDMI or HDMI to HDMI 
 
 
 
 
 
- 12 -
RGB_EDID DATA
*Vendor Specific(HDMI)DATA
5.3 White Balance Adjustment
5.3.1 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. 
-Adj. condition : normal temperature
 
2) Warm-up time: About 5 Min
 
3) Surrounding Humidity: 20% ~ 80%
5.3.2 Equipment
1) Color Analyzer: CA-210 (LED Module : CH 14)
2) Adj. Computer(During auto adj., RS-232C protocol is needed)
3) Adjust Remocon
4) Video Signal Generator MSPG-925F 720p/204-Gray(Model:217, 
Pattern:49)
   → Only when internal pattern is not available
▪Color Analyzer Matrix should be calibrated using CS-100。
5.3.3 Equipment connection MAP
5.3.4 Adj. Command (Protocol)
<Command Format>
START  6E  A  50  A  LEN  A  03  A  CMD  A  00  A  VAL  A  CS  A STOP
- LEN: Number of Data Byte to be sent
   - CMD: Command
   - VAL: FOS Data value
   - CS: Checksum of sent data
   - A: Acknowledge
   Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
▪RS-232C Command used during auto-adj.
  
5.2.4 EDID DATA
▪Reference
- HDMI1 ~ HDMI4 / RGB 
- In the data of EDID, bellows may be different by S/W or Input mode.
*Product ID
 Serial No:  Controlled on production line.
*Month, Year: Controlled on production line:  ex)  
Monthly : ‘01’  -〉  ‘01’ 
 *Model Name(Hex): LGTV
*Checksum(LG TV): Changeable by total EDID data.
3D FHD RGB EDID data 
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00
FF
FF
FF
FF
FF
FF
00
1E
6D
a
b
0x01
c
01
03
68
A0
5A
78
0A
EE
91
A3
54
4C
99
26
0x02 0F
50
54
A1
08
00
31
40
45
40
61
40
71
40
81
80
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
A0
5A
00
00
00
1E
66
21
50
B0
51
00
1B
30
0x05 40
70
36
00
A0
5A
00
00
00
1E
00
00
00
FD
00
3A
0x06 3E
1E
53
10
00
0A
20
20
20
20
20
20
d
0x07
d
00
e3
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00
FF
FF
FF
FF
FF
FF
00
1E
6D
a
b
0x01
c
01
03
80
A0
5A
78
0A
EE
91
A3
54
4C
99
26
0x02 0F
50
54
A1
08
00
31
40
45
40
61
40
71
40
81
80
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
A0
5A
00
00
00
1E
66
21
50
B0
51
00
1B
30
0x05 40
70
36
00
A0
5A
00
00
00
1E
00
00
00
FD
00
3A
0x06 3E
1E
53
10
00
0A
20
20
20
20
20
20
d
0x07
d
01
e1
0x00 02
03
37
F1
4E
10
9F
04
13
05
14
03
02
12
20
21
0x01 22
15
01
26
15
07
50
09
57
07
f
0x02
f
0x03
f
E3
05
03
01
02
3A
80
18
71
38
2D
40
58
0x04 2C
45
00
A0
5A
00
00
00
1E
01
1D
80
18
71
1C
16
0x05 20
58
2C
25
00
A0
5A
00
00
00
9E
01
1D
00
72
51
0x06 D0
1E
20
6E
28
55
00
A0
5A
00
00
00
1E
00
00
00
0x07 00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
e2
 
HEX 
EDID Table 
DDC 
Function 
0001 
0100 
Analog 
0001 
0100 
Digital 
Chassis 
MODEL NAME(HEX) 
LD22E 
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 20   
 
 
1
 
HDMI1 
9D 
49 
HDMI2 
9D 
39 
HDMI3 
9D 
29 
HDMI4 
9D 
19 
RGB 
80 
INPUT
 
MODEL NAME(HEX)
 
HDMI1
 
78 03 0C 00 10 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10 
HDMI2
 
78 03 0C 00 20 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10 
HDMI3
 
78 03 0C 00 30 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10 
HDMI4
 
78 03 0C 00 40 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10 
 
Color Analyzer 
Computer 
Pattern Generator 
※ 
※If TV internal pattern is used, not needed 
Signal Source 
Probe 
RS-232C 
RS-232C 
USB to RS-232C 
 
- 13 -
5.4 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. s
            If change is not seen, replace Eye Q II sensor
5.5 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.
5.6 Magic Motion Remocon test
 
-equipment : RF Remocon for test, IR-KEY-Code Remocon for test
-You must confirm the battery power of RF-Remocon before test
 (recommend that change the battery per every lot) 
-Sequence (test)
    a)if you select the ‘start key(OK)’ on the controller, you can 
     pairing with the TV SET.
    b)You can check the cursor on the TV Screen, when select the 
     ‘OK Key’ on the controller 
c) You must remove the pairing with the TV Set by 
     ‘Mute + OK Key’ on the controller。
5.7 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 
(HDMI mode NO. 872 ,   pattern No.83)
2.When 3D OSD appear automatically , 
then select green button.
3. Don’t wear a 3D Glasses, 
Check the picture like below .
5.8 3D Depth function TEST
5.9  Wi-Fi Test(LM6200 not support 
Wi-Fi)
5.10 LNB voltage and 22KHz tone 
check (only for DVB-S/S2 model)
Test method
Aging time 
Cool 
Medium 
Warm 
(Min) 
GP4 
 
 
269 
273 
285 
293 
313 
329 
0-2 
283 
293 
299 
313 
320   
339 
3-5 
282 
291 
298 
311 
319   
337 
6-9 
281 
290 
297 
310 
318   
336 
10-19 
279 
289 
295 
309 
316   
335 
20-35 
277 
284 
293 
304 
314   
330 
36-49 
274 
279 
290 
299 
311   
325 
50-79 
271 
277 
287 
297 
308   
323 
80-119 
270 
274 
286 
294 
307   
320 
Over 120 
269   
273   
285   
293   
306 
319 
 
No 
Item 
Min 
Typ 
Max 
Unit 
 
Remark 
10 
12 
1. 
 
  Audio practical max 
Output, L/R 
(Distortion=10% 
max Output) 
 
8.10 
10.8 
Vrms 
EQ Off 
AVL Off 
Clear Voice Off 
 
2.    Speaker (8Ω 
Impedance) 
 
10 
12 
EQ On 
AVL On 
Clear Voice On 
 
 
1. Set TV in Adj. mode using POWER ON.
2. Connect cable between satellite ANT and test JIG.
4. Press Yellow Key (ETC+SWAP) in Adj Remocon to make LNB on.
5. check LED light ‘ON’ at 18V menu.
6. check LED light ‘ON’ at 22KHz tone menu.
7. Press Blue Key (ETC+PIP INPUT) in Adj Remocon to make LNB off.
8. check LED light ‘OFF’ at 18V menu.
9. check LED light ‘OFF’ at 22KHz tone menu.
Test result
1. After press LNB On key, ‘18V LED’ and ‘22KHz tone LED’ should be
    ON. 
2. After press LNB OFF key, ‘18V LED’ and ‘22KHz tone LED’ should
   be OFF. 
5.11 Option selection per country
5.11.1 Overview
▪ Option selection is only done for models in Non-EU 
5.11.2 Method
   1) Press ADJ key on the Adj. R/C, then select Country Group Meun
   2) Depending on destination, select Country Group Code 04 or
 Country Group EU then on the lower Country option, select US, CA,
6.0 Tool Option selection
 Method: Press Adj. key on the Adj. R/C, then select Tool option. 
6.1 Ship-out mode check (In-stop)
▪ After final inspection, press In-Stop key of the Adj. R/C and check 
that the unit goes to Stand-by mode.
6.2.1 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.
Measurement condition:
1. RF input: Mono, 1KHz sine wave signal, 100% Modulation
2. CVBS, Component: 1KHz sine wave signal 0.5Vrms
3. RGB PC: 1KHz sine wave signal 0.7Vrms.
 8.1 SET Factoring Condition
No
1
6.2.2 Checkpoint
▪ TEST voltage
   - GND: 1.5KV/min at 100mA
   - SIGNAL: 3KV/min at 100mA
▪ TEST time: 1 second
▪ TEST POINT
   - GND TEST = POWER CORD GND & SIGNAL CABLE METAL GND
▪ LEAKAGE CURRENT: At 0.5mArms.
7. Audio
 
No. 
Item 
Condition 
Remark 
1.  Power 
Off 
 
2.  Volume Level 
10 
 
3.  Main Picture Input 
DTV 
DTV&ATV 
4.  Main Last Channel 
N.A. 
 
5.  Mute 
Off 
 
6.  ARC 
16:9(DTV) 
 
Energy Saving 
Auto 
 
3D Settings 
 
 
Standard 
 
Backlight 
Energy Saving 
Contrast 
100 
Brightness 
50 
Sharpness 
25 
Colour 
60 
Tint 
7.  PICTURE 
Picture Mode 
Colour Temp 
 
- 14-
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