DOWNLOAD LG 55LM9600 (CHASSIS:LT23E) Service Manual ↓ Size: 6.24 MB | Pages: 62 in PDF or view online for FREE

Model
55LM9600 (CHASSIS:LT23E)
Pages
62
Size
6.24 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lm9600-chassis-lt23e.pdf
Date

LG 55LM9600 (CHASSIS:LT23E) Service Manual ▷ View online

- 16 -
5.5. WIDEVINE Key Inspection
1) Confirm Key input Data at the “IN START” MENU Mode
5.6. Model name & Serial number D/L
5.6.1. 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
4)  Check  the  model  name  In-start  menu  ->  Factory  name 
displayed (ex 32LS5700-DA)
5)  Check the Diagnostics (DTV country only) -> Buyer model 
displayed (ex 32LS5700-DA)
5.6.2. Method : Auto
1)  Press “Power on” key of service remocon.(Baud rate : 115200 
bps)
2) Connect RS232 Signal Cable to RS-232 Jack
3) Write Serial number by use RS-232.
4) Must check the serial number at Instart menu
5.6.3. Method : Manual
* If the TV set is downloaded By OTA or Service man, Sometimes 
model name or serial number is initialized.
( Not always) It is impossible to download by bar code scan, so 
It need Manual download.
1) Press the ‘instart’ key of ADJ remote controller.
2) Go to the menu ‘6.Model Number D/L’ like below photo.
3) Input the Factory model name or Serial number like photo.
5.7. Wi-Fi MAC ADDRESS CHECK
5.7.1. Notice
1) Using RS232
Command
Set ACK
Transmission [A][l][][Set ID][][20][Cr]
[O][K][x]  or  [N][G]
2) Check the menu on in-start
5.8. Local Dimming Inspection (Optional)
5.8.1. Edge LED models with local dimming
1)  Press ‘TILT” key of the Adj. R/C and check moving pat-
terns. The black bar patterns moves from left to right. If local 
dimming function does not work, a whole screen shows full 
white.
5.9. GND and Hi-Pot test
No
Item
Vallue Unit
Remark
1.
Dielectric 
Voltage(AC<->FG)
1.5
kV
At 100mA for 
1sec(Line)
1.5
At 100mA for 
1min(OQC)
2.
Dielectric 
Voltage(Without FG)
3
kV
At 100mA for 
1sec(Line)
3
At 100mA for 
1min(OQC)
- 17 -
5.10. Motion Remote controller Inspection
5.10.1. Equipment
Motion  remote  controller  for  test,  IR-KEY-CODE  remote 
controller for test
Check battery before test. (Recommend : Change battery for 
every Lot.)
5.10.2. Process
1)  Push “Mute” or “ START” key for pairing between TV-set and 
motion remote controller.
2) Push “OK” or “Enter” key, you can see the Cursor on screen.
3) Push “Vol+” or  “STOP” key, Disconnect Pairing.
5.11. Audio
No
Item
Min Typ Max
Unit
Remark
1
Audio practical 
max Output, L/R
(Distortion=10% 
max Output)
9.0
10.0 12.0 W
Measure-
ment 
condition
(TBD)
47/55LM9600
8.5
8.9
9.8
Vrms
2
Speaker (8Ω 
Impedance)
10.0 15.0 W
Measure-
ment 
condition
(TBD)
47/55LM9600
▪ Measurement condition:
(1) RF input: Mono, 1 KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1 KHz sine wave signal 0.4Vrms
(3) RGB PC: 1 KHz sine wave signal 0.7Vrms
5.12. 3D Function test 
5.12.1. Equipment
Pattern Generator MSPG-3233, HDMI mode 37, pattern No. 81
5.12.2. Equipment
1) Connect HDMI (HDMI mode 371, Pattern No. 81)
2) Insert 3D Mode, Select side by side mode.
3) Without 3D-glasses, Like below figure.
4) With 3D left-glass, Like below figure. (Center is RED)
5) With 3Dright-glass, Like below figure.(Center is Blue)
- 18 -
5.13. HDMI ARC Function Inspection 
5.13.1. Test equipment
- Optic Receiver Speaker          
- MSHG-600 (SW: 1220 ↑) 
- HDMI Cable (for 1.4 version)
5.13.2. Test method
(1)  Insert  the  HDMI  Cable  to  the  HDMI ARC  port  from  the 
master equipment (HDMI1)
(2) Check the sound from the TV Set
(3)  Check  the  Sound  from  the  Speaker  or  using AV  &  Optic 
TEST program (It’s connected to MSHG-600)
* Remark:  Inspect in Power Only Mode and check SW version 
in a master equipment
.
- 19 -
TROUBLE SHOOTING
No power
Check 24V, 12V, 3.5V 
of Power B/D
Check short of Main B/D 
or Change Power B/D
Pass
Check Output of 
Q2305, IC2300, IC2301, IC2302
IC2304, IC2305, IC2306
Check P2301 Connector 
Change LED Assy
: [A] PROCESS
Fail
Fail
Pass
Pass
Check LED Assy
Check short of 
IC2303, IC6501
Pass
Check short of 
Q2305, IC2300, IC2301, IC2302
IC2304, IC2305, IC2306
Fail
Re-soldering or Change defect
part of Q2305, IC2300, IC2301, 
IC2302IC2304, IC2305, IC2306
Fail
Re-soldering or Change defect
part of IC2303, IC6501
Fail
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